Dust removal equipment for paper product production

Abstract

The utility model discloses dust removal equipment for paper product production, which comprises a fixed frame, an upper dust removal cover and a lower dust removal cover are fixed on the inner side of the fixed frame, and a dust removal assembly is arranged between the upper dust removal cover and the lower dust removal cover; the dust removal assembly comprises an upper cleaning brush, a lower cleaning brush, an upper exhaust pipe and a lower exhaust pipe, the upper cleaning brush and the lower cleaning brush are oppositely arranged and are driven by a servo motor, the upper exhaust pipe and the lower exhaust pipe are communicated with the filter box through a pipeline assembly, a sealing plate is detachably installed on the front face of the filter box, and the sealing plate is arranged on the front face of the filter box. Three filter screen plates are fixed to the side, close to an inner cavity of the filter box, of the sealing plate. According to the paper product dust removal device, dust on the upper face and the lower face of a paper product can be removed at the same time, stubborn flying chips or dust adhering to the paper product can be removed more thoroughly through the sweeping effect, and therefore the better dust removal effect on the paper product can be achieved; and the cleanliness of the rolled paper products can be better guaranteed.

Description

A dust removal device for paper production Technical Field

[0001] This utility model relates to the field of dust removal technology in paper production, specifically a dust removal device for paper production. Background Technology

[0002] Paper products refer to various paper products made from cellulose materials, widely used in daily life and various industries. Common paper products include facial tissues and soft cotton paper. The production of paper products involves multiple processes, such as slitting, embossing, and printing. These processes can easily generate dust and lint, so it is necessary to carry out dust removal operations on paper products.

[0003] As mentioned in the dust removal device for a rewinding machine used in toilet paper production, Chinese patent application number CN202420779105.0 states: "A mounting frame; a rotating shaft rotatably connected to the inner side of the mounting frame; an arc-shaped cover disposed on the top of the rotating shaft, with an air inlet pipe fixedly installed on the top of the arc-shaped cover; and an exhaust fan fixedly installed on the top of the arc-shaped cover, with a pipe fixedly installed at the input end of the exhaust fan." This utility model provides a dust removal device for a rewinding machine used in toilet paper production. Through the coordinated structure of the arc-shaped cover, air inlet pipe, exhaust fan, pipe, top cover, storage frame, filter cartridge, and sealing gasket, the filter cartridge is placed at the air inlet end of the pipe during use. This prevents dust containing impurities from entering the exhaust fan and accumulating inside, affecting its normal operation and thus increasing its service life.

[0004] Through a search of the aforementioned patented technologies, we found that they can only remove dust from the top surface of paper products, and it is difficult to remove dust from the bottom surface. After the paper products are rolled up, the bottom and top surfaces come into contact, which can cause the dust that was not removed from the bottom surface to re-adhere to the top surface of the paper products, resulting in secondary dust adhesion and incomplete dust removal. Furthermore, when there are stubborn flying lint or dust adhering to the paper products, it is difficult to completely remove them by the exhaust fan alone. In addition, although the device filters impurities through a filter cartridge to prevent them from entering the exhaust fan and affecting its use, when impurities of different sizes enter the filter cartridge at the same time, impurities that are too small may directly pass through the filter cartridge and enter the exhaust fan. This method is ineffective and cannot truly protect the exhaust fan. Summary of the Invention

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dust removal device for paper production, comprising a fixed frame, an upper dust removal hood and a lower dust removal hood fixed on the inner side of the fixed frame, and a dust removal assembly disposed between the upper dust removal hood and the lower dust removal hood; the dust removal assembly includes an upper cleaning brush, a lower cleaning brush, an upper exhaust pipe and a lower exhaust pipe, the upper cleaning brush and the lower cleaning brush being arranged opposite to each other and driven by a servo motor, the upper exhaust pipe and the lower exhaust pipe being connected to a filter box through a pipe assembly; a sealing plate is detachably installed on the front of the filter box, and three filter screens are fixed on the side of the sealing plate near the inner cavity of the filter box, the three filter screens being placed inside the filter box; a second perforation is opened on one side of the filter box, a connecting pipe is connected to the second perforation, and an exhaust fan is connected to the end of the connecting pipe away from the second perforation.

[0007] As a further embodiment of this utility model: the upper dust removal hood and the lower dust removal hood are close to each other and have a gap between them to facilitate the passage of paper products; the upper cleaning brush is rotatably connected in the upper dust removal hood; the lower cleaning brush is rotatably connected in the lower dust removal hood; the upper cleaning brush and the lower cleaning brush are close to each other and have a gap between them to facilitate the passage of paper products.

[0008] As a further embodiment of this utility model: the servo motor is installed on one side of the back of the fixed frame, the power output shaft of the servo motor is connected to the shaft of the lower cleaning brush, and a drive gear is connected to the shaft of the lower cleaning brush. A driven gear meshes with the drive gear, and the driven gear is connected to the shaft at one end of the upper cleaning brush.

[0009] As a further embodiment of this utility model: the upper exhaust pipe is fixed inside the upper dust removal hood and close to the upper cleaning brush, the lower exhaust pipe is fixed inside the lower dust removal hood and close to the lower cleaning brush, and the surfaces of both the upper and lower exhaust pipes are provided with multiple exhaust ports in a ring shape. One end of the upper exhaust pipe is a closed structure and the other end is connected to a connecting pipe 1 that passes through the fixed frame. One end of the lower exhaust pipe is a closed structure and the other end is connected to a connecting pipe 2 that passes through the fixed frame.

[0010] As a further embodiment of this utility model: the pipe assembly includes a connecting pipe 1, a connecting pipe 2, and an inlet pipe. One end of the connecting pipe 1 is connected to the connecting pipe 1, one end of the connecting pipe 2 is connected to the connecting pipe 2, and the other ends of the connecting pipe 1 and the connecting pipe 2 are both connected to the inlet pipe. One end of the inlet pipe is a closed structure, and the other end is connected to a perforation 1 opened on the other side of the filter box.

[0011] As a further embodiment of this utility model: the top and bottom of the filter screen are integrally formed with a limiting block, and the top wall and bottom wall of the filter box are both provided with limiting grooves. The limiting block is slidably connected in the limiting groove. The mesh diameters of the three filter screens are different, and the mesh diameters of the three filter screens gradually decrease from the first perforation to the second perforation.

[0012] As a further embodiment of this utility model: a sealing ring is provided on the front of the filter box, threaded holes are provided at the four corners of the front of the filter box, and bolts are passed through the four corners of the front of the sealing plate. The sealing plate is fixed to the front of the filter box by bolts and threaded holes.

[0013] As a further embodiment of this utility model: a conveying roller is also installed on one side of the inside of the fixed frame, a winding roller is also installed on the other side of the inside of the fixed frame, and a baffle is fixed to the top of the fixed frame by bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] I. In this application, through the designed structure of upper dust hood, lower dust hood, upper cleaning brush, lower cleaning brush, upper exhaust pipe, and lower exhaust pipe, when the paper passes through, the upper and lower cleaning brushes can first sweep the top and bottom surfaces of the paper to remove the flying dust or dust adhering to the paper. Then, through the suction action of the upper and lower exhaust pipes, the swept flying dust or dust can be quickly sucked in and transported to the filter box for filtration. This method can achieve simultaneous dust removal on both the top and bottom surfaces of the paper, and can also more thoroughly remove stubborn flying dust or dust adhering to the paper through the sweeping action, thereby achieving a better dust removal effect on the paper and ensuring the cleanliness of the paper after winding.

[0016] Second, in this application, through the designed filter box and three filter screens, the incoming flying debris or dust can be effectively filtered three times in the filter box, successively filtering large particles, medium particles, and small particles. Through three-stage filtration, the problem of easy clogging of the mesh can be avoided by single filtration. On the other hand, filtering flying debris or dust of different particle sizes one by one results in better filtration effect and better protection of the exhaust fan, thereby extending its service life. Attached Figure Description

[0017] Figure 1 is a three-dimensional structural diagram of the baffle of this utility model after it has been removed from the fixed frame;

[0018] Figure 2 is a three-dimensional cross-sectional structural diagram of the upper and lower dust removal hoods of this utility model.

[0019] Figure 3 is a side sectional view of the present invention;

[0020] Figure 4 is a side sectional view of the upper and lower dust removal hoods of this utility model.

[0021] Figure 5 is a three-dimensional structural diagram of the sealing plate of this utility model after it is pulled out of the filter box;

[0022] Figure 6 is a three-dimensional schematic diagram of the overall structure of this utility model after the baffle is installed.

[0023] The reference numerals and names in the figure are as follows:

[0024] 1. Fixed frame; 2. Upper dust collector hood; 3. Lower dust collector hood; 4. Connecting pipe one; 5. Connecting pipe two; 6. Inlet pipe; 7. Filter box; 701. Perforation one; 702. Perforation two; 703. Sealing ring; 704. Sealing plate; 705. Filter screen plate; 8. Connecting pipe; 9. Exhaust fan; 10. Conveyor roller; 1001. Take-up roller; 11. Servo motor; 12. Drive gear; 13. Driven gear; 14. Upper cleaning brush; 15. Lower cleaning brush; 16. Upper exhaust pipe; 1601. Connecting pipe one; 17. Lower exhaust pipe; 1701. Connecting pipe two; 18. Exhaust port; 19. Baffle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please refer to Figures 1-6. A dust removal device for paper production includes a fixed frame 1. An upper dust removal hood 2 and a lower dust removal hood 3 are fixed to the inner side of the fixed frame 1. The upper dust removal hood 2 can be fixed to the fixed frame 1 by bolts, which facilitates the subsequent removal of the upper dust removal hood 2 for maintenance of the upper cleaning brush 14 and the lower cleaning brush 15. A dust removal assembly is provided between the upper dust removal hood 2 and the lower dust removal hood 3. The dust removal assembly includes an upper cleaning brush 14, a lower cleaning brush 15, an upper exhaust pipe 16, and a lower exhaust pipe 17. The upper cleaning brush 14 and the lower dust removal hood 3 are connected... The cleaning brush 15 is positioned opposite each other and driven by the servo motor 11. The upper exhaust pipe 16 and the lower exhaust pipe 17 are connected to the filter box 7 through the pipe assembly. A sealing plate 704 is detachably installed on the front of the filter box 7. Three filter screens 705 are fixed on the side of the sealing plate 704 near the inner cavity of the filter box 7. The three filter screens 705 are placed inside the filter box 7. A second perforation 702 is opened on one side of the filter box 7. A connecting pipe 8 is connected in the second perforation 702. The end of the connecting pipe 8 away from the second perforation 702 is connected to the exhaust fan 9.

[0027] Please refer to Figures 2, 3, and 4. In this embodiment, the upper dust cover 2 and the lower dust cover 3 are close to each other with a gap between them to facilitate the passage of paper products. The upper cleaning brush 14 is rotatably connected in the upper dust cover 2, and the lower cleaning brush 15 is rotatably connected in the lower dust cover 3. The upper cleaning brush 14 and the lower cleaning brush 15 are close to each other with a gap between them to facilitate the passage of paper products. The servo motor 11 is installed on one side of the back of the fixed frame 1. The power output shaft of the servo motor 11 is connected to the shaft of the lower cleaning brush 15. The shaft of the lower cleaning brush 15 is connected to the drive gear 12, and the drive gear 12 is meshed with the driven gear 13. The driven gear 13 is connected to the shaft at one end of the upper cleaning brush 14.

[0028] Specifically, after the servo motor 11 is started, it can drive the shaft of the lower cleaning brush 15 and the drive gear 12 to rotate through its power output shaft. The drive gear 12 drives the driven gear 13 that meshes with it to rotate, so that the lower cleaning brush 15 and the upper cleaning brush 14 can be driven to rotate through the servo motor 11, which facilitates the sweeping of the paper products and removes the impurities on their surface. The removed impurities are scattered in the shielding structure formed between the upper dust cover 2 and the lower dust cover 3 to prevent them from floating out. Then, the scattered impurities can be sucked in by the suction action of the upper exhaust pipe 16 and the lower exhaust pipe 17.

[0029] Please refer to Figures 1, 3, and 4. In this embodiment, the upper exhaust pipe 16 is fixed inside the upper dust cover 2 and close to the upper cleaning brush 14, and the lower exhaust pipe 17 is fixed inside the lower dust cover 3 and close to the lower cleaning brush 15. The surfaces of both the upper exhaust pipe 16 and the lower exhaust pipe 17 are provided with multiple exhaust ports 18 in a ring shape. One end of the upper exhaust pipe 16 is a closed structure, and the other end is connected to a connecting pipe 1601 that passes through the fixed frame 1. One end of the lower exhaust pipe 17 is a closed structure, and the other end is connected to a connecting pipe 1701 that passes through the fixed frame 1.

[0030] Specifically, both the upper exhaust pipe 16 and the lower exhaust pipe 17 have multiple exhaust ports 18 arranged in a ring on their surfaces. This allows for the extraction of air from different locations within the upper dust collector hood 2 and the lower dust collector hood 3, resulting in better suction of impurities at different locations. The upper exhaust pipe 16 is connected to connecting pipe 1601, and the lower exhaust pipe 17 is connected to connecting pipe 2 1701, which facilitates connection with connecting pipe 1 4 and connecting pipe 2 5, thus promoting gas flow.

[0031] Please refer to Figures 1 and 3. In this embodiment, the pipeline assembly includes a connecting pipe 4, a connecting pipe 5, and an inlet pipe 6. One end of the connecting pipe 4 is connected to the connecting pipe 1601, and one end of the connecting pipe 5 is connected to the connecting pipe 2 1701. The other ends of the connecting pipe 4 and the connecting pipe 5 are both connected to the inlet pipe 6. One end of the inlet pipe 6 is a closed structure, and the other end is connected to the perforation 701 opened on the other side of the filter box 7.

[0032] Specifically, connecting pipe 4 is used to guide the gas in the upper exhaust pipe 16, and connecting pipe 5 is used to guide the gas in the lower exhaust pipe 17. The gas is then concentrated in the inlet pipe 6 and transported together to the filter box 7 for better filtration.

[0033] Please refer to Figure 5. In this embodiment, the top and bottom of the filter screen 705 are integrally formed with a limiting block. The top and bottom walls of the filter box 7 are provided with limiting grooves. The limiting block is slidably connected in the limiting groove. The mesh diameters on the three filter screens 705 are different. The mesh diameters of the three filter screens 705 gradually decrease from the first perforation 701 to the second perforation 702.

[0034] Specifically, the filter screen 705 is slidably connected to the limiting groove of the filter box 7 via a limiting block, which can position the filter screen 705. In order to prevent dust from entering due to air leakage at the connection, a rubber sealing strip can be set in the limiting groove to increase the sealing between the limiting block and the limiting groove. Finally, the three filter screens 705 can filter particles of different sizes three times, resulting in better effect.

[0035] Please refer to Figure 5. In this embodiment, a sealing ring 703 is provided on the front of the filter box 7, and threaded holes are provided at the four corners of the front of the filter box 7. Bolts are passed through the four corners of the front of the sealing plate 704. The sealing plate 704 is fixed to the front of the filter box 7 by bolts and threaded holes.

[0036] Specifically, the sealing plate 704 can be removed and installed on the filter box 7 by tightening or loosening the bolts. The rubber sealing ring 703 on the filter box 7 can increase the sealing performance after the sealing plate 704 is fixed to the filter box 7, thus ensuring the filtration effect.

[0037] Please refer to Figures 1 and 6. In this embodiment, a conveying roller 10 is also installed on one side of the inside of the fixed frame 1, and a winding roller 1001 is also installed on the other side of the inside of the fixed frame 1. A baffle 19 is fixed to the top of the fixed frame 1 by bolts.

[0038] Specifically, the conveyor roller 10 is used to input paper products that need to be dusted, and the take-up roller 1001 is used to roll up the paper products after dusting. A baffle 19 is also provided on the top of the fixed frame 1 to shield the internal structure of the fixed frame 1 and provide a certain degree of protection.

[0039] In use, the paper passes through the conveyor roller 10, passes between the upper dust hood 2 and the lower dust hood 3, and is then wound onto the take-up roller 1001. The take-up roller 1001 is rotated to wind the paper. (The take-up roller 1001 can be driven to rotate by a motor. The motor is existing technology and is therefore not shown in the figure.)

[0040] The servo motor 11 and the exhaust fan 9 are started. The power output shaft of the servo motor 11 drives the lower cleaning brush 15 and the upper cleaning brush 14 to rotate, thereby using the bristles on the lower cleaning brush 15 and the upper cleaning brush 14 to clean the bottom and top of the paper, removing the flying dust or debris adhering to the top and bottom of the paper. The flying dust or debris swept off the paper will be scattered in the upper dust hood 2 and the lower dust hood 3. Due to the suction generated by the upper exhaust pipe 16 and the lower exhaust pipe 17, the flying dust or debris can be removed. Dust is drawn in through the exhaust port 18 and transported through connecting pipe 1 4 and connecting pipe 2 5 to the inlet pipe 6, and finally to the filter box 7. Since there are three filter screens 705 in the filter box 7, the three filter screens 705 can filter large, medium and small particles of flying dust or debris in sequence, resulting in better filtration. The filtered air is discharged through the connecting pipe 8 and enters the exhaust fan 9, and is finally discharged through the exhaust fan 9, thus preventing flying dust or debris from entering the exhaust fan 9.

[0041] However, when it is necessary to clean the three filter screens 705 in the filter box 7, the bolts on the sealing plate 704 can be loosened to unlock the sealing plate 704, and the three filter screens 705 fixed thereto can be taken out from the filter box 7 using the sealing plate 704. Then the three filter screens 705 can be cleaned to ensure the sustainable use of the three filter screens 705.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dust removal device for paper production, characterized in that, The system includes a fixed frame (1), on the inner side of which an upper dust cover (2) and a lower dust cover (3) are fixed. A dust removal assembly is provided between the upper dust cover (2) and the lower dust cover (3). The dust removal assembly includes an upper cleaning brush (14), a lower cleaning brush (15), an upper exhaust pipe (16), and a lower exhaust pipe (17). The upper cleaning brush (14) and the lower cleaning brush (15) are arranged opposite to each other and driven by a servo motor (11). The upper exhaust pipe (16) and the lower exhaust pipe (17) are connected by a pipe assembly. It is connected to the filter box (7); a sealing plate (704) is detachably installed on the front of the filter box (7), and three filter screens (705) are fixed on the side of the sealing plate (704) close to the inner cavity of the filter box (7). The three filter screens (705) are placed inside the filter box (7). A second perforation (702) is opened on one side of the filter box (7), and a connecting pipe (8) is connected in the second perforation (702). A fan (9) is connected to the end of the connecting pipe (8) away from the second perforation (702).

2. The dust removal equipment for paper production according to claim 1, characterized in that, The upper dust cover (2) and the lower dust cover (3) are close to each other and have a gap between them to facilitate the passage of paper products. The upper cleaning brush (14) is rotatably connected in the upper dust cover (2), and the lower cleaning brush (15) is rotatably connected in the lower dust cover (3). The upper cleaning brush (14) and the lower cleaning brush (15) are close to each other and have a gap between them to facilitate the passage of paper products.

3. The dust removal equipment for paper production according to claim 1, characterized in that, The servo motor (11) is installed on the back side of the fixed frame (1). The power output shaft of the servo motor (11) is connected to the shaft of the lower cleaning brush (15). The shaft of the lower cleaning brush (15) is connected to a drive gear (12). The drive gear (12) is meshed with a driven gear (13). The driven gear (13) is connected to the shaft at one end of the upper cleaning brush (14).

4. The dust removal equipment for paper production according to claim 1, characterized in that, The upper exhaust pipe (16) is fixed inside the upper dust cover (2) and close to the upper cleaning brush (14). The lower exhaust pipe (17) is fixed inside the lower dust cover (3) and close to the lower cleaning brush (15). The surfaces of the upper exhaust pipe (16) and the lower exhaust pipe (17) are both annularly provided with multiple exhaust ports (18). One end of the upper exhaust pipe (16) is a closed structure and the other end is connected to a connecting pipe one (1601) that passes through the fixed frame (1). One end of the lower exhaust pipe (17) is a closed structure and the other end is connected to a connecting pipe two (1701) that passes through the fixed frame (1).

5. A dust removal device for paper production according to claim 1, characterized in that, The pipeline assembly includes a connecting pipe 1 (4), a connecting pipe 2 (5), and an inlet pipe (6). One end of the connecting pipe 1 (4) is connected to the connecting pipe 1 (1601), and one end of the connecting pipe 2 (5) is connected to the connecting pipe 2 (1701). The other ends of the connecting pipe 1 (4) and the connecting pipe 2 (5) are both connected to the inlet pipe (6). One end of the inlet pipe (6) is a closed structure, and the other end is connected to the perforation 1 (701) opened on the other side of the filter box (7).

6. A dust removal device for paper production according to claim 1, characterized in that, The top and bottom of the filter screen (705) are integrally formed with a limiting block. The top and bottom walls of the filter box (7) are provided with limiting grooves. The limiting block is slidably connected in the limiting groove. The mesh diameters on the three filter screens (705) are different. The mesh diameters of the three filter screens (705) gradually decrease from the first perforation (701) to the second perforation (702).

7. A dust removal device for paper production according to claim 6, characterized in that, The filter box (7) is provided with a sealing ring (703) on the front side. Threaded holes are provided at the four corners of the front side of the filter box (7). Bolts are passed through the four corners of the front side of the sealing plate (704). The sealing plate (704) is fixed to the front side of the filter box (7) by bolts and threaded holes.

8. A dust removal device for paper production according to claim 1, characterized in that, A conveying roller (10) is also installed on one side of the inside of the fixed frame (1), and a winding roller (1001) is also installed on the other side of the inside of the fixed frame (1). A baffle (19) is fixed to the top of the fixed frame (1) by bolts.

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