A paper machine press section vacuum roll internal cleaning system

Abstract

This utility model relates to the field of papermaking technology, specifically to an internal cleaning system for the vacuum roller of a papermaking machine's press section. It includes a support frame, with a first drive motor fixedly connected to one side of the support frame. The output shaft of the first drive motor passes through the support frame and is rotatably connected to it. An adsorption roller is fixedly connected to the output shaft of the first drive motor. A self-cleaning component is installed inside the adsorption roller. The self-cleaning component includes a sleeve plate rotatably fitted onto the inner edge of the adsorption roller on the other side. The beneficial effects of this device are: the extension plate and silicone plate in the self-cleaning component divide the inside of the adsorption roller into an adsorption chamber and a cleaning chamber. The adsorption chamber adsorbs moisture from the paper through negative pressure, while the cleaning chamber is back-blown through the air knife nozzle on the air knife tube. As the adsorption roller rotates, it simultaneously adsorbs moisture from the paper and cleans it through the air knife, thus eliminating the need to stop the machine for maintenance of the adsorption roller, improving production efficiency, and ensuring continuous production.

Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, specifically to an internal cleaning system for the vacuum rollers of the press section of a papermaking machine. Background Technology

[0002] As a key component at the wet end, the vacuum roller reduces the moisture content of the paper web from 80% to a transferable state through negative pressure suction, while stabilizing the fiber arrangement structure.

[0003] During the production process, the pores of the rollers are in constant contact with pulp fibers and adhesives, which can easily lead to blockages and uneven dewatering. Regular unclogging is necessary to maintain porosity. However, the unclogging and cleaning process requires equipment shutdown, affecting production efficiency. Therefore, we propose a vacuum roller internal cleaning system for the press section of a paper machine. Utility Model Content

[0004] The purpose of this invention is to provide an internal cleaning system for the vacuum roll of the press section of a paper machine, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an internal cleaning system for the vacuum roller of a paper machine press section, comprising a support, a first drive motor fixedly connected to one side of the support, and the output shaft of the first drive motor passing through the support and rotatably connected thereto, an adsorption roller fixedly connected to the output shaft of the first drive motor, a self-cleaning component provided inside the adsorption roller, the self-cleaning component comprising a sleeve plate rotatably fitted onto the inner edge of the other side of the adsorption roller, a fixed shaft fixedly connected to the side of the sleeve plate near the first drive motor, an extension plate fixedly connected to the outer wall of the fixed shaft, soft silicone plates fixedly connected to the opposite sides of the two extension plates, and the silicone plates away from the extension plates abutting against the inner wall of the adsorption roller through elastic deformation force, an air knife tube fixedly connected to the side of the sleeve plate near the adsorption roller, and an air knife nozzle formed by airflow on the outer wall of the air knife tube.

[0006] Preferably, a fixing post is fixedly connected to the side of the sleeve away from the adsorption roller, and the fixing post is fixedly sleeved inside one side of the bracket.

[0007] Preferably, an air outlet pipe is fixedly connected to the other side of the sleeve, and the air outlet pipe is connected to the inside of the adsorption roller. An air inlet pipe is fixedly connected to the side of the sleeve near the air outlet pipe, and the air inlet pipe is connected to the inside of the air knife tube. A vacuum pump is fixedly connected to the other end of the air outlet pipe, and the output end of the vacuum pump is fixedly connected to the other end of the air inlet pipe.

[0008] Preferably, the outer wall of the adsorption roller is provided with adsorption holes, and the interior of the adsorption roller is connected to the outside through the adsorption holes.

[0009] Preferably, the extension plate and the silicone plate divide the interior of the adsorption roller into an adsorption chamber and a cleaning chamber, with the adsorption chamber located above the cleaning chamber and the air knife tube located inside the cleaning chamber.

[0010] Preferably, a second drive motor is fixedly connected to the side of the bracket near the air outlet pipe. The output end of the second drive motor movably passes through the side wall of the bracket. A first guide roller is fixedly connected to the output end of the second drive motor. The other end of the first guide roller is rotatably connected to the inner wall of the bracket near the first drive motor via a bearing. A third drive motor is fixedly connected to the side of the bracket near the second drive motor. The second guide roller is fixedly connected to the output end of the third drive motor.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The extension plate and silicone plate in the self-cleaning component divide the inside of the adsorption roller into an adsorption chamber and a cleaning chamber. The adsorption chamber adsorbs moisture from the paper through negative pressure, while the cleaning chamber is back-blown by the air knife nozzles on the air knife tube. As the adsorption roller rotates, it cleans the paper by adsorbing moisture at the same time as the air knife, thus eliminating the need to stop the machine to maintain the adsorption roller, improving production efficiency and ensuring production continuity.

[0013] The air knife tube has a narrow nozzle, which allows airflow to be ejected through the narrow slit, forming a high-intensity air curtain that effectively cleans the adsorption pores and improves cleaning efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention. Figure 1 ;

[0016] Figure 3 This is a schematic cross-sectional view of the present invention. Figure 2 ;

[0017] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A;

[0018] Figure 5 This is a schematic diagram of the paper's direction of travel according to this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Support; 2. Vacuum pump; 3. Sleeve disc; 4. Fixing column; 5. Adsorption roller; 6. Adsorption hole; 7. Fixing shaft; 8. Extension plate; 9. Silicone plate; 10. Air outlet pipe; 11. Air inlet pipe; 12. Air knife tube; 13. Air knife nozzle; 14. First drive motor; 15. Second drive motor; 16. First guide roller; 17. Third drive motor; 18. Second guide roller; 19. Adsorption chamber; 20. Cleaning chamber. Detailed Implementation

[0021] 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.

[0022] This utility model provides a technical solution: such as Figures 1-5 The paper machine press section vacuum roller internal cleaning system shown includes a bracket 1. A first drive motor 14 is fixedly connected to one side of the bracket 1, and the output shaft of the first drive motor 14 passes through the bracket 1 and is rotatably connected to it. An adsorption roller 5 is fixedly connected to the output shaft of the first drive motor 14. A self-cleaning component is provided inside the adsorption roller 5. The self-cleaning component includes a sleeve 3 rotatably sleeved on the inner edge of the other side of the adsorption roller 5. A fixed shaft 7 is fixedly connected to the side of the sleeve 3 near the first drive motor 14. An extension plate 8 is fixedly connected to the outer wall of the fixed shaft 7. Soft silicone plates 9 are fixedly connected to the opposite sides of the two extension plates 8. The side of the silicone plates 9 away from the extension plates 8 abuts against the inner wall of the adsorption roller 5 through elastic deformation. An air knife tube 12 is fixedly connected to the side of the sleeve 3 near the adsorption roller 5. The outer wall of the air knife tube 12 has a through-hole. The air knife nozzle 13, formed by the airflow, is used when paper passes through the gap between the first guide roller 16 and the adsorption roller 5, and then through the gap between the second guide roller 18 and the adsorption roller 5, so that the paper is laid on the outer wall of the adsorption roller 5 near the adsorption chamber 19. Then, the first drive motor 14, the second drive motor 15, the third drive motor 17 and the vacuum pump 2 are started. The first guide roller 16 and the second guide roller 18 guide the paper so that the paper adheres to the outer wall of the adsorption roller 5. As the vacuum pump 2 runs, a negative pressure is formed inside the adsorption chamber 19, and the moisture in the paper is adsorbed through the adsorption holes 6. The air knife tube 12 is connected to the output end of the vacuum pump 2, so that the airflow passes through the narrow air knife nozzle 13 to form a curtain-shaped air knife, which back-blown the adsorption holes 6 on the adsorption roller 5 that has rotated to the cleaning chamber 20 position, so that the blockage in the adsorption holes 6 is blown away.

[0023] like Figure 1 and Figure 2As shown, a fixing post 4 is fixedly connected to the side of the sleeve 3 away from the adsorption roller 5, and the fixing post 4 is fixedly sleeved inside one side of the bracket 1.

[0024] like Figure 2 , Figure 3 and Figure 4 As shown, an air outlet pipe 10 is fixedly connected to the other side of the sleeve 3, and the air outlet pipe 10 is connected to the inside of the adsorption roller 5. An air inlet pipe 11 is fixedly connected to the side of the sleeve 3 near the air outlet pipe 10, and the air inlet pipe 11 is connected to the inside of the air knife pipe 12. A vacuum pump 2 is fixedly connected to the other end of the air outlet pipe 10, and the output end of the vacuum pump 2 is fixedly connected to the other end of the air inlet pipe 11. The extension plate 8 and the silicone plate 9 in the self-cleaning assembly divide the inside of the adsorption roller 5 into an adsorption chamber 19 and a cleaning chamber 20. The adsorption chamber 19 adsorbs the moisture of the paper through negative pressure, while the cleaning chamber 20 is back-blown through the air knife nozzle 13 on the air knife pipe 12. As the adsorption roller 5 rotates, it adsorbs the moisture of the paper while cleaning it through the air knife, so that the adsorption roller 5 does not need to be stopped for maintenance, improving production efficiency and ensuring production continuity. Through the narrow air knife nozzle 13 on the air knife pipe 12, the airflow is sprayed out through the narrow slit to form a high-intensity air curtain, thereby effectively cleaning the adsorption hole 6 and improving cleaning efficiency.

[0025] like Figure 2 , Figure 3 and Figure 4 As shown, the outer wall of the adsorption roller 5 is provided with adsorption holes 6, and the interior of the adsorption roller 5 is connected to the outside through the adsorption holes 6.

[0026] like Figure 3 , Figure 4 and Figure 5 As shown, the extension plate 8 and the silicone plate 9 divide the interior of the adsorption roller 5 to form an adsorption chamber 19 and a cleaning chamber 20. The adsorption chamber 19 is located above the cleaning chamber 20, and the air knife tube 12 is located inside the cleaning chamber 20.

[0027] like Figure 1 and Figure 2 As shown, a second drive motor 15 is fixedly connected to the side of the bracket 1 near the air outlet pipe 10. The output end of the second drive motor 15 movably passes through the side wall of the bracket 1. A first guide roller 16 is fixedly connected to the output end of the second drive motor 15. The other end of the first guide roller 16 is rotatably connected to the inner wall of the bracket 1 near the first drive motor 14 through a bearing. A third drive motor 17 is fixedly connected to the side of the bracket 1 near the second drive motor 15. A second guide roller 18 is fixedly connected to the output end of the third drive motor 17.

[0028] Working principle: During use, the paper passes through the gap between the first guide roller 16 and the adsorption roller 5, and then through the gap between the second guide roller 18 and the adsorption roller 5, so that the paper is laid on the outer wall of the adsorption roller 5 near the adsorption chamber 19. Then, the first drive motor 14, the second drive motor 15, the third drive motor 17 and the vacuum pump 2 are started. The first guide roller 16 and the second guide roller 18 guide the paper so that the paper adheres to the outer wall of the adsorption roller 5. As the vacuum pump 2 runs, a negative pressure is formed inside the adsorption chamber 19, which adsorbs the moisture in the paper through the adsorption holes 6. The air knife tube 12 is connected to the output end of the vacuum pump 2, so that the airflow passes through the narrow air knife nozzle 13 to form a curtain-shaped air knife, which back-blown the adsorption holes 6 on the adsorption roller 5 that has rotated to the cleaning chamber 20 position, so that the blockage in the adsorption holes 6 is blown away.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum roll internal cleaning system for the press section of a paper machine, comprising a support frame (1), characterized in that: A first drive motor (14) is fixedly connected to one side of the bracket (1), and the output shaft of the first drive motor (14) passes through the bracket (1) and is rotatably connected to it. An adsorption roller (5) is fixedly connected to the output shaft of the first drive motor (14). A self-cleaning component is provided inside the adsorption roller (5). The self-cleaning component includes a sleeve (3) that is rotatably sleeved at the inner edge of the other side of the adsorption roller (5). A fixed shaft (7) is fixedly connected to the side of the sleeve (3) near the first drive motor (14). An extension plate (8) is fixedly connected to the outer wall of the fixed shaft (7). A soft silicone plate (9) is fixedly connected to the opposite side of the two extension plates (8). The side of the silicone plate (9) away from the extension plate (8) abuts against the inner wall of the adsorption roller (5) through elastic deformation force. An air knife tube (12) is fixedly connected to the side of the sleeve (3) near the adsorption roller (5). An air knife nozzle (13) is opened on the outer wall of the air knife tube (12) to form an air knife through airflow.

2. The paper machine press section vacuum roll internal cleaning system according to claim 1, characterized in that: The side of the sleeve (3) away from the adsorption roller (5) is fixedly connected to a fixing column (4), and the fixing column (4) is fixedly sleeved inside one side of the bracket (1).

3. The internal cleaning system for the vacuum roll of the press section of a paper machine according to claim 1, characterized in that: The other side of the sleeve (3) is fixedly connected to an air outlet pipe (10), and the air outlet pipe (10) is connected to the inside of the adsorption roller (5). The side of the sleeve (3) near the air outlet pipe (10) is fixedly connected to an air inlet pipe (11), and the air inlet pipe (11) is connected to the inside of the air knife pipe (12). The other end of the air outlet pipe (10) is fixedly connected to a vacuum pump (2), and the output end of the vacuum pump (2) is fixedly connected to the other end of the air inlet pipe (11).

4. The internal cleaning system for the vacuum roll of the press section of a paper machine according to claim 1, characterized in that: The outer wall of the adsorption roller (5) is provided with adsorption holes (6), and the interior of the adsorption roller (5) is connected to the outside through the adsorption holes (6).

5. The internal cleaning system for the vacuum roll of the press section of a paper machine according to claim 1, characterized in that: The extension plate (8) and the silicone plate (9) divide the interior of the adsorption roller (5) into an adsorption chamber (19) and a cleaning chamber (20), the adsorption chamber (19) being located above the cleaning chamber (20), and the air knife tube (12) being located inside the cleaning chamber (20).

6. The internal cleaning system for the vacuum roll of the press section of a paper machine according to claim 1, characterized in that: A second drive motor (15) is fixedly connected to the side of the bracket (1) near the air outlet pipe (10). The output end of the second drive motor (15) is movably connected through the side wall of the bracket (1). A first guide roller (16) is fixedly connected to the output end of the second drive motor (15). The other end of the first guide roller (16) is rotatably connected to the inner wall of the bracket (1) near the first drive motor (14) through a bearing. A third drive motor (17) is fixedly connected to the side of the bracket (1) near the second drive motor (15). A second guide roller (18) is fixedly connected to the output end of the third drive motor (17).

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