A press roll device for a papermaking machine

Abstract

The utility model discloses a kind of press roll devices for papermaking machinery, it is related to papermaking technical field, including roller, the inside of roller is provided with drainage groove, the inside of roller is provided with driving roller, driving roller can drive roller rotation, paper can be extruded during roller rotation, water of paper can be squeezed out and enter into drainage groove, moisture subsequently entered into drainage groove can be adsorbed by thread strip of water-absorbing sponge material on moisture-absorbing roller, and during roller rotation, moisture-absorbing roller can drive rotation, moisture-absorbing roller can drive both ends of exhaust fan blade rotation during rotation, so that exhaust fan blade can promote the air flow in roller, to further make the water of thread strip adsorption evaporate quickly, the equipment only through single drive equipment, can simultaneously extrude, water absorption and drying function, compared with existing press roll, can further improve the environment that drainage groove is still always humid.

Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, specifically a pressure roller device for papermaking machinery. Background Technology

[0002] In papermaking machinery, pressure rollers play an indispensable and crucial role in the entire papermaking process. During dewatering, pressure rollers apply appropriate pressure to the wet paper sheet, which is saturated with moisture, rapidly squeezing out the water and significantly increasing the paper's dryness. This effectively reduces energy consumption and time costs in subsequent drying processes, creating conditions for efficient production. From the perspective of paper quality improvement, the pressure applied by the pressure rollers encourages the fibers in the paper sheet to come closer together and interweave tightly, significantly enhancing the bonding force between fibers. This effectively improves the paper's density and strength, optimizing key physical properties such as tensile strength and bursting strength. Simultaneously, the pressure rollers, with their powerful compaction function, deeply smooth the paper surface, eliminating surface unevenness and pores, resulting in an ideal smoothness and gloss. This significantly improves the paper's printability, ensuring perfect printing results for both fine graphic printing and high-quality artistic creations, meeting the stringent demands of the high-end printing market. In addition, in terms of paper specification control, by precisely adjusting the gap between the pressure rollers and the pressure value, the paper thickness can be strictly controlled within the specified standard range, ensuring uniform paper thickness and providing stable and reliable quality assurance for various paper products. This meets the diverse needs of different industries and application scenarios for paper thickness, thereby enhancing the market competitiveness and product adaptability of paper manufacturing enterprises.

[0003] In the conventional use of pressure rollers, the surface of the pressure roller is equipped with a dense array of circular drainage grooves. By squeezing the paper, the water inside the paper is forced into the drainage grooves. Then, the water in the circular drainage grooves is spun out by the high-speed rotating pressure roller. This spun-out process cannot ensure that all the water in the drainage grooves is completely spun out. Moreover, although the water in the drainage grooves is spun out by rotation alone, the drainage grooves are still always in a damp environment. Utility Model Content

[0004] The purpose of this invention is to provide a pressure roller device for papermaking machinery to solve the problems raised in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure roller device for papermaking machinery, including a roller, a drainage groove is provided on the inner side of the roller, an active roller is provided inside the roller, three moisture-absorbing rollers are provided inside the roller, a threaded strip is fixedly installed on the outer surface of the moisture-absorbing roller, the threaded strip is made of water-absorbing sponge, and exhaust fan blades are provided at both ends of the threaded strip.

[0006] Preferably, a load-bearing frame is provided on both sides of the roller, and four wheel frames are fixedly installed on the outer surface of the load-bearing frame. Load-bearing wheels are rotatably connected to the outer surface of the wheel frames, and directional cylinders are slidably connected to the outer surface of the load-bearing wheels. The directional cylinders are fixedly installed at both ends of the roller.

[0007] Preferably, a motor is fixedly installed on the outer surface of one of the load-bearing frames, a transmission rod is fixedly installed on the output end of the motor, the outer surface of the transmission rod is rotatably connected to the inner wall of the load-bearing frame, one end of the transmission rod is fixedly installed to one end of the drive roller, and the other end of the drive roller is rotatably connected to the outer surface of the other load-bearing frame.

[0008] Preferably, the inner wall of the directional cylinder is provided with teeth, and the outer surface of the drive roller is fixedly connected with transmission teeth, wherein the outer surfaces of the teeth and the outer surfaces of the transmission teeth mesh with each other.

[0009] Preferably, three rotating seats are fixedly installed on the outer surface of the load-bearing frame, and a load-bearing frame is rotatably connected to the outer surface of the rotating seats. One end of the load-bearing frame is rotatably connected to one end of the moisture-absorbing roller.

[0010] Preferably, the outer surface of the load-bearing frame and the outer surface of the exhaust fan blade are fixedly installed, and a toothed ring is fixedly installed on the outer surface of the load-bearing frame, wherein the outer surface of the toothed ring and the outer surface of the tooth are engaged with each other.

[0011] Preferably, the outer surface of the threaded strip is in frictional contact with the inner surface of the roller, and a ventilation groove is provided on the inner side of the threaded strip.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This application utilizes the cooperation between a roller, drainage trough, drive roller, absorbent roller, threaded strips, and exhaust fan blades. During actual use, the drive roller can drive the roller to rotate, squeezing the paper and expelling moisture into the drainage trough. The moisture in the drainage trough is then absorbed by the absorbent sponge material of the threaded strips on the absorbent roller. Furthermore, the rotation of the roller drives the absorbent roller to rotate. Because the diameter of the absorbent roller is much smaller than that of the roller, its rotation speed is much higher. The rotation of the absorbent roller also drives the exhaust fan blades at both ends to rotate, promoting airflow within the roller and further accelerating the evaporation of water absorbed by the threaded strips. This equipment, using only a single drive unit, can simultaneously perform squeezing, water absorption, and drying functions, further improving the consistently damp environment within the drainage trough compared to existing pressure rollers.

[0014] 2. This application utilizes the cooperation between the threaded strip and the ventilation groove. When the threaded strip rotates, it can rub against the inner surface of the roller, thereby adsorbing the water in the drainage groove inside the roller. Furthermore, the ventilation groove inside the threaded strip increases the contact area with air when the threaded strip rotates, thereby further enhancing the rate of moisture evaporation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a pressure roller device for papermaking machinery according to the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of the roller of a pressure roller device for papermaking machinery according to this utility model;

[0017] Figure 3 This is a schematic diagram of the transmission end structure of a pressure roller device for papermaking machinery according to the present invention;

[0018] Figure 4 This is a schematic diagram of the main transmission structure of a pressure roller device for papermaking machinery according to this utility model;

[0019] Figure 5 This utility model relates to a pressure roller device for papermaking machinery. Figure 4 Schematic diagram of the exploded structure.

[0020] The following are the labels in the diagram: 1. Roller; 2. Drive roller; 3. Absorbent roller; 4. Threaded strip; 5. Exhaust fan blade; 6. Support frame; 7. Wheel frame; 8. Support roller; 9. Directional cylinder; 10. Motor; 11. Transmission rod; 12. Gear; 13. Transmission gear; 14. Rotary seat; 15. Support frame; 16. Gear ring; 17. Ventilation slot; 18. Drainage slot. 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] Example: Figures 1-5As shown, this utility model provides a technical solution for a pressure roller device for papermaking machinery, including a roller 1. A drainage groove 18 is provided on the inner side of the roller 1. An active roller 2 is installed inside the roller 1, and three moisture-absorbing rollers 3 are also installed inside the roller 1. Threaded strips 4, made of absorbent sponge, are fixedly installed on the outer surface of the moisture-absorbing rollers 3. Both ends of the threaded strips 4 are equipped with exhaust fan blades 5. During actual use, the active roller 2 drives the roller 1 to rotate. During the rotation of the roller 1, the paper is squeezed, and the moisture in the paper is squeezed out and enters the drainage groove 18. The moisture entering the drainage groove 18 is then absorbed by the moisture-absorbing rollers 3. The absorbent sponge material of the spiral strip 4 adsorbs water and drives the moisture-absorbing roller 3 to rotate during the rotation of the roller 1. Because the diameter of the moisture-absorbing roller 3 is much smaller than that of the roller 1, the rotation speed of the moisture-absorbing roller 3 is much higher than that of the roller 1. During the rotation of the moisture-absorbing roller 3, the exhaust fan blades 5 at both ends can rotate, so that the exhaust fan blades 5 can promote the airflow inside the roller 1, thereby further enabling the water adsorbed by the spiral strip 4 to evaporate quickly. This equipment can perform the functions of squeezing, absorbing water and drying simultaneously with only a single drive device. Compared with the existing pressure roller, it can further improve the environment in the drainage trough 18 that is always damp.

[0023] Both sides of the roller 1 are provided with a load-bearing frame 6. Four wheel frames 7 are fixedly installed on the outer surface of the load-bearing frame 6. Load-bearing wheels 8 are rotatably connected to the outer surface of the wheel frames 7. Directional cylinders 9 are slidably connected to the outer surface of the load-bearing wheels 8. The directional cylinders 9 are fixedly installed at both ends of the roller 1. The load-bearing frame 6 can provide support and load-bearing function for the load-bearing wheels 8 through the wheel frames 7. There is a directional cylinder 9 fixed at both ends of the roller 1. Each directional cylinder 9 is in contact with the four load-bearing wheels 8. The four load-bearing wheels 8 can support the directional cylinders 9 in four directions, so as to support the roller 1 without affecting the transmission function of the internal equipment.

[0024] A motor 10 is fixedly mounted on the outer surface of one of the load-bearing frames 6. A transmission rod 11 is fixedly mounted on the output end of the motor 10. The outer surface of the transmission rod 11 is rotatably connected to the inner wall of the load-bearing frame 6. One end of the transmission rod 11 is fixedly mounted to one end of the drive roller 2. The other end of the drive roller 2 is rotatably connected to the outer surface of another load-bearing frame 6. The load-bearing frame 6 can provide load-bearing function for the motor 10. When the motor 10 is running, it can drive the transmission rod 11 to rotate, thereby driving the drive roller 2 to rotate through the transmission rod 11. Furthermore, a bearing is installed inside the load-bearing frame 6. The bearing is sleeved on the outer surface of the transmission rod 11, making the transmission rod 11 more flexible when rotating.

[0025] The inner wall of the directional cylinder 9 is provided with teeth 12, and the outer surface of the drive roller 2 is fixedly connected with transmission teeth 13. The outer surface of the teeth 12 and the outer surface of the transmission teeth 13 mesh with each other. When the drive roller 2 is driven to rotate by the motor 10, it can drive the teeth 12 through the transmission teeth 13 on its surface, thereby driving the directional cylinder 9 and the roller 1 to rotate through the teeth 12.

[0026] Three rotating seats 14 are fixedly installed on the outer surface of the load-bearing frame 6. A load-bearing frame 15 is rotatably connected to the outer surface of the rotating seats 14. One end of the load-bearing frame 15 is rotatably connected to one end of the moisture-absorbing roller 3. The three rotating seats 14 can provide support for the moisture-absorbing roller 3 through the load-bearing frame 15, so that the moisture-absorbing roller 3 can maintain the ability to bear weight relatively suspended without affecting the rotation of the moisture-absorbing roller 3.

[0027] The outer surface of the load-bearing frame 15 is fixedly installed on the outer surface of the exhaust fan blade 5. A toothed ring 16 is fixedly installed on the outer surface of the load-bearing frame 15. The outer surface of the toothed ring 16 meshes with the outer surface of the tooth 12. During the rotation of the roller 1 and the directional cylinder 9, the toothed ring 16 can be driven to rotate through the tooth 12. When the toothed ring 16 rotates, it can drive the exhaust fan blade 5 and the moisture-absorbing roller 3 to rotate. Because the diameter of the moisture-absorbing roller 3 is smaller than the diameter of the roller 1, the rotation speed of the moisture-absorbing roller 3 is very fast. This high-speed rotation can make the spiral blades on the surface of the moisture-absorbing roller 3 rotate rapidly, thereby increasing the speed of moisture evaporation by increasing the speed of contact with air. At the same time, the rotation of the exhaust fan blade 5 allows the air to circulate rapidly, thereby further enhancing the speed of moisture evaporation.

[0028] The outer surface of the threaded bar 4 is in frictional contact with the inner surface of the roller 1. A ventilation groove 17 is provided on the inner side of the threaded bar 4. When the threaded bar 4 rotates, it can rub against the inner surface of the roller 1, thereby absorbing the water in the drainage groove 18 on the inner side of the roller 1. Furthermore, the ventilation groove 17 on the inner side of the threaded bar 4 can increase the contact area with the air when the threaded bar 4 rotates, thereby further enhancing the rate of water evaporation.

[0029] 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 pressure roller device for papermaking machinery, comprising a roller (1), characterized in that: The inner side of the roller (1) is provided with a drainage groove (18), the inside of the roller (1) is provided with an active roller (2), the inside of the roller (1) is provided with three moisture-absorbing rollers (3), the outer surface of the moisture-absorbing roller (3) is fixedly installed with a threaded strip (4), the material of the threaded strip (4) is a water-absorbing sponge, and both ends of the threaded strip (4) are provided with exhaust fan blades (5).

2. The pressure roller device for papermaking machinery according to claim 1, characterized in that: Both sides of the roller (1) are provided with load-bearing frames (6). Four wheel frames (7) are fixedly installed on the outer surface of the load-bearing frames (6). Load-bearing wheels (8) are rotatably connected to the outer surface of the wheel frames (7). A guide cylinder (9) is slidably connected to the outer surface of the load-bearing wheels (8). The guide cylinder (9) is fixedly installed at both ends of the roller (1).

3. The pressure roller device for papermaking machinery according to claim 2, characterized in that: A motor (10) is fixedly installed on the outer surface of one of the load-bearing frames (6). A transmission rod (11) is fixedly installed at the output end of the motor (10). The outer surface of the transmission rod (11) is rotatably connected to the inner wall of the load-bearing frame (6). One end of the transmission rod (11) is fixedly installed to one end of the drive roller (2). The other end of the drive roller (2) is rotatably connected to the outer surface of the other load-bearing frame (6).

4. The pressure roller device for papermaking machinery according to claim 2, characterized in that: The inner wall of the directional cylinder (9) is provided with teeth (12), and the outer surface of the active roller (2) is fixedly connected with transmission teeth (13). The outer surface of the teeth (12) and the outer surface of the transmission teeth (13) mesh with each other.

5. A pressure roller device for papermaking machinery according to claim 2, characterized in that: Three rotating seats (14) are fixedly installed on the outer surface of the load-bearing frame (6). A load-bearing frame (15) is rotatably connected to the outer surface of the rotating seat (14). One end of the load-bearing frame (15) is rotatably connected to one end of the moisture-absorbing roller (3).

6. A pressure roller device for papermaking machinery according to claim 5, characterized in that: The outer surface of the load-bearing frame (15) is fixedly installed with the outer surface of the exhaust fan blade (5). A toothed ring (16) is fixedly installed on the outer surface of the load-bearing frame (15), and the outer surface of the toothed ring (16) meshes with the outer surface of the tooth (12).

7. A pressure roller device for papermaking machinery according to claim 1, characterized in that: The outer surface of the threaded bar (4) is in frictional contact with the inner surface of the roller (1), and a ventilation groove (17) is provided on the inner side of the threaded bar (4).

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