A mesh cloth dewatering device for producing smooth paper

Abstract

The utility model relates to the technical field of smooth paper production, especially to a screen cloth dewatering device for smooth paper production, which comprises a fixed plate, a transmission assembly, a supporting plate, a containing plate and a twisting assembly, the top end inner wall of the fixed plate is symmetrically connected with a transmission rod one through rotation, the outer part of the transmission rod one is fixedly connected with a screen roll one, the outer part of the two screen roll ones is sleeved with a screen cloth one, the bottom end inner wall of the fixed plate is symmetrically connected with a transmission rod two through rotation, the outer part of the transmission rod two is fixedly connected with a screen roll two, the outer part of the two screen roll twos is sleeved with a screen cloth two, the left top corner of the fixed plate is provided with an inlet frame, the bottom end of the fixed plate is fixedly connected with a vacuum box, and the outer part of one end of the fixed plate is provided with the transmission assembly. The utility model solves the problems of dewatering difficulty of the screen part and low screen dryness caused by fine fibers of the smooth paper pulp, avoids excessive extrusion of local moisture, and improves the appearance quality of the finished paper.

Description

Technical Field

[0001] This utility model relates to the technical field of glossy paper production, and in particular to a mesh dewatering device for glossy paper production. Background Technology

[0002] Glossy paper is a type of paper with a smooth surface and dense texture. Its production requires a crucial step of pulp dewatering to form a wet paper web. The papermaking dewatering device, as the core of the papermaking mesh, can hold the initial pulp and quickly remove a large amount of water through its mesh structure. As the fibers in the pulp move with the mesh, water is removed through the mesh openings by gravity or vacuum, causing the pulp to be initially concentrated into a wet paper web with a certain strength.

[0003] Most wire mesh dewatering devices first feed the smooth pulp onto the wire mesh, and then the water in the pulp naturally drips from the wire mesh holes to complete the initial dewatering. Then, it moves with the wire mesh to the end of the wire section and is transported to the felt with the help of vacuum rollers. The felt then uses transfer rollers to transport the pulp, and the pulp is squeezed and dewatered a second time by pressure rollers. However, because the fibers of smooth paper are fine, it is relatively difficult to dewater the paper web at the wire section. The dryness of the paper web exiting the wire section is small, and the dewatering is uneven, resulting in dark marks on the paper surface, which affects the appearance of the finished paper.

[0004] Therefore, it is necessary to provide a new dewatering device for glossy paper production to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a mesh dewatering device for producing glossy paper.

[0006] This utility model provides a dewatering device for glossy paper production using a mesh fabric, comprising: a fixed plate, a transmission assembly, a support plate, a receiving plate, and a twisting assembly. A transmission rod is symmetrically and rotatably connected to the inner wall of the top of the fixed plate. A mesh roller is fixedly connected to the outside of the transmission rod. Mesh fabric is sleeved on the outside of the two mesh rollers. A transmission rod is symmetrically and rotatably connected to the inner wall of the bottom of the fixed plate. A mesh roller is fixedly connected to the outside of the transmission rod. Mesh fabric is sleeved on the outside of the two mesh rollers. A feeding frame is installed at the included angle of the top left side of the fixed plate. A vacuum box is fixedly connected to the bottom of the fixed plate. A transmission assembly is installed on the outside of one end of the fixed plate. A [missing information - likely a component or component] is fixedly connected to the right side of the bottom of the fixed plate. Two support plates are provided. An inclined plate is installed at the top of the support plate and the right side of the fixed plate. Tensioning rollers are rotatably connected to both ends of the two adjacent sides of the two support plates. The outer sides of the two tensioning rollers are covered with felt. A motor is installed at the rear end of the rear support plate. Multiple receiving plates are fixedly connected to the top of the support plate. A rotating rod is slidably connected to the inner wall of the adjacent side of each pair of receiving plates. A pressure roller is rotatably connected to the outer side of the rotating rod. Multiple transmission rollers are rotatably connected between the two tensioning rollers on the adjacent side of the two support plates. A twisting assembly is installed inside the multiple receiving plates on one side. An auxiliary rod is fixedly connected to the inner wall of the multiple receiving plates on the other side.

[0007] Preferably, the transmission assembly includes a drive wheel, one side of which is rotatably connected to the outer side of a fixed plate, a driven wheel is rotatably connected to the bottom outer side of one side of the fixed plate, a pulley is sleeved on the outer side of the drive wheel and the driven wheel, and a motor is installed on the other side of the fixed plate.

[0008] Preferably, the screwing assembly includes a threaded rod, the end of which is rotatably connected to the inner wall end of one of the plurality of receiving plates on one side, a plurality of sliding blocks are slidably connected to the inner wall of the receiving plate, and a rotating disk is rotatably connected to the top of the receiving plate on which the threaded rod is mounted.

[0009] Preferably, the distance between the two second mesh rollers is greater than the distance between the two first mesh rollers.

[0010] Preferably, the drive end of the second motor is fixedly connected to the rear end of the tension roller on the left, and the outer sides of the plurality of transmission rollers are in contact with the inner ring of the felt.

[0011] Preferably, both the fixed plate and the support plate have multiple support legs fixedly connected to their bottom ends, and each of the multiple support legs has a support pad fixedly connected to its bottom end.

[0012] Preferably, the drive end of motor one is fixedly connected to one end of the transmission rod one on the left, the outer side of the transmission rod one on the left away from motor one is fixedly connected to the inner wall of the drive wheel, and the outer side of one end of the transmission rod two on the left is fixedly connected to the inner wall of the driven wheel.

[0013] Preferably, the inner walls of the plurality of sliding blocks on one side are threadedly connected to the outer side of the threaded rod, the inner walls of the plurality of sliding blocks on the other side are slidably connected to the outer side of the auxiliary rod, the bottom axis of the rotating disk is fixedly connected to the top axis of the threaded rod, and the adjacent sides of the two sliding blocks are fixedly connected to both ends of the rotating rod.

[0014] Compared with related technologies, the mesh dewatering device for producing glossy paper provided by this utility model has the following beneficial effects: To improve the dewatering efficiency of the wire section and increase the dryness of the wet paper web: By clamping the pulp with upper and lower double wire cloths and cooperating with the vacuum suction of the vacuum box at the bottom, the dewatering effect is enhanced by the combination of gravity and vacuum force; at the same time, the design of the second wire cloth being slightly longer than the first wire cloth extends the contact time between the pulp and the wire cloth, solving the problem of difficult dewatering of the wire section and low dryness of the web caused by the fine fibers of the smooth pulp, and reducing the dewatering load of subsequent processes from the source.

[0015] Enhanced dewatering controllability in the press section and reduced paper surface stains: The felt area adopts a structure with multiple sets of pressure rollers and drive rollers working in coordination. The pressure and position of the pressure rollers can be flexibly adjusted through components such as threaded rods and sliding blocks, which can accurately control the pressing force according to the moisture distribution of the wet paper web and avoid excessive local water squeezing. At the same time, the coordinated support of the felt and drive rollers improves the efficiency of moisture absorption and transfer, solves the problem of paper surface stains caused by untimely suction by vacuum rollers and felt in traditional designs, and improves the appearance quality of the finished paper. Attached Figure Description

[0016] Figure 1 A schematic diagram of a mesh dewatering device for producing glossy paper provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the pressure roller; Figure 3 for Figure 1 The diagram shows the structure of the fixing plate. Figure 4 for Figure 3 Enlarged view of point A in the image; Figure 5 for Figure 1 The diagram shows the structure of the receiving plate.

[0017] The following are the labels in the diagram: 1. Fixed plate; 2. Transmission rod one; 3. Mesh roller one; 4. Mesh cloth one; 5. Transmission rod two; 6. Mesh roller two; 7. Mesh cloth two; 8. Feed frame; 9. Vacuum box; 10. Drive wheel; 11. Driven wheel; 12. Pulley; 13. Motor one; 14. Support plate; 15. Inclined plate; 16. Tension roller; 17. Felt cloth; 18. Motor two; 19. Receiving plate; 20. Pressure roller; 21. Rotating rod; 22. Transmission roller; 23. Support leg; 24. Support pad; 25. Threaded rod; 26. Sliding block; 27. Rotating disk. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0020] Please see Figures 1 to 5 A dewatering device for glossy paper production using a mesh fabric includes: a fixed plate 1; a transmission rod 2 symmetrically and rotatably connected to the inner wall of the top of the fixed plate 1; a mesh roller 3 fixedly connected to the outside of the transmission rod 2; and a mesh fabric 4 woven from polyester fiber, with fine and evenly distributed mesh openings, effectively holding pulp while allowing water to pass through. A transmission rod 5 symmetrically and rotatably connected to the inner wall of the bottom of the fixed plate 1; a mesh roller 6 fixedly connected to the outside of the transmission rod 5; and a mesh fabric 7 fitted onto the outside of the two mesh rollers 6. The mesh fabric 7 is made of a wear-resistant and highly permeable composite fiber material, with a high degree of flatness and close fit. The pulp surface is dewatered with the spacing between the two wire rollers 6 is greater than the spacing between the two wire rollers 3, which makes the length of the wire mesh 4 slightly less than the length of the wire mesh 7. This length difference design allows the pulp to form a more complete contact and wrap with the wire mesh 7 during movement, extending the dewatering path. A feed frame 8 is installed at the left top corner of the fixed plate 1. The discharge port of the feed frame 8 is flat and has a pulp equalization grid, which can spread the pulp evenly and stably on the wire mesh 4. A vacuum box 9 is fixedly connected to the bottom of the fixed plate 1. The vacuum box 9 has multiple independent vacuum chambers inside, and each chamber is equipped with a precision air pressure regulating valve, which can accurately control the vacuum suction according to the pulp dewatering stage.

[0021] The transmission assembly includes a drive wheel 10, one side of which is rotatably connected to the outer side of the fixed plate 1. A driven wheel 11 is rotatably connected to the bottom outer side of the fixed plate 1 to ensure that the transmission speeds of the mesh fabric 1 4 and the mesh fabric 2 7 are matched. A pulley 12 is fitted around the drive wheel 10 and the driven wheel 11. The pulley 12 is made of high-elasticity polyurethane material, which can effectively reduce vibration and slippage during transmission. A motor 13 is installed on the other side of the fixed plate 1. The motor 13 is a servo motor. The drive end is fixedly connected to one end of the left transmission rod 1 2. The outer side of the left transmission rod 1 2 away from the motor 13 is fixedly connected to the inner wall of the drive wheel 10. The outer side of the left transmission rod 2 5 is fixedly connected to the inner wall of the driven wheel 11. Through the coordinated action of the transmission assembly, the synchronous operation of the mesh fabric 1 4 and the mesh fabric 2 7 can be achieved.

[0022] Support plates 14 and fixed plates 1 are fixedly connected to the bottom right side of the support plate 14. The support plates 14 are welded from alloy steel plates and have good structural stability. The top of the support plates 14 and the right side of the fixed plate 1 are installed with inclined plates 15. The surface of the inclined plates 15 is covered with a smooth polytetrafluoroethylene coating. Its inclined angle is designed to be 30°, which can guide the wet paper web to transition smoothly and reduce friction damage. Tension rollers 16 are rotatably connected to the two ends of the two adjacent sides of the support plates 14. The tension rollers 16 are equipped with pressure sensors to monitor the tension of the felt 17 in real time. The felt 17 is covered on the outside of the two tension rollers 16. The felt 17 has a multi-layer composite structure. The inner layer has strong water absorption and the outer layer has high wear resistance. The rear end of the rear support plate 14 is equipped with a second motor 18. The second motor 18 is linked with the first motor 13 through the same control system. Its drive end is fixedly connected to the rear end of the left tension roller 16 to ensure that the running speed of the felt 17 is matched with the transmission speed of the wire mesh.

[0023] Multiple receiving plates 19 are fixedly connected to the top of the receiving plate 19 and the support plate 14. A rotating rod 21 is slidably connected to the inner wall of each pair of receiving plates 19 on their adjacent sides. The outside of the rotating rod 21 is rotatably connected to the pressure roller 20. The surface of the pressure roller 20 is covered with a layer of elastic rubber, which can automatically adjust the contact pressure according to the thickness of the wet paper web. Multiple transmission rollers 22 are rotatably connected between the two tension rollers 16 on the adjacent sides of the two support plates 14. The axis of the transmission roller 22 corresponds to the axis of the pressure roller 20 and remains parallel. The outside of the multiple transmission rollers 22 contacts the inner ring of the felt 17, which can provide stable support for the felt 17. Multiple support legs 23 are fixedly connected to the bottom of the fixed plate 1 and the support plate 14. The support legs 23 are equipped with shock-absorbing springs inside, which can effectively absorb the vibration during the operation of the equipment. Support pads 24 are fixedly connected to the bottom of the multiple support legs 23. The support pads 24 are made of wear-resistant rubber material, which can increase the friction with the ground and prevent the equipment from shifting.

[0024] The screwing assembly includes a screw rod 25 installed inside one of the multiple receiving plates 19 on one side. The screw rod 25 has a trapezoidal thread design and a self-locking function. Its end is rotatably connected to the inner wall of one of the multiple receiving plates 19. Multiple sliding blocks 26 are slidably connected to the inner wall of the receiving plates 19. Wear-resistant sliders are installed on both sides of the sliding blocks 26 to reduce frictional resistance during sliding. A rotating disk 27 is rotatably connected to the top of the receiving plate 19 where the screw rod 25 is installed. The surface of the rotating disk 27 has anti-slip textures and is marked with graduations for easy operation. To ensure precise control of the adjustment amount, auxiliary rods are fixedly connected to the inner walls of multiple receiving plates 19 on the other side. The auxiliary rods are parallel to the threaded rod 25, which ensures that the sliding block 26 moves smoothly in a straight line. The inner walls of multiple sliding blocks 26 on one side are threaded to the outside of the threaded rod 25, while the inner walls of multiple sliding blocks 26 on the other side are slidably connected to the outside of the auxiliary rod. The bottom axis of the rotating disk 27 is fixedly connected to the top axis of the threaded rod 25. The adjacent sides of two sliding blocks 26 are fixedly connected to both ends of the rotating rod 21. The height of the pressure roller 20 can be precisely adjusted by turning the assembly.

[0025] The working principle of the mesh dewatering device for producing glossy paper provided by this utility model is as follows: After the device is started, motor 13 starts running, and its drive end drives the left transmission rod 2 to rotate. When the transmission rod 2 rotates, it drives the wire roller 3 to rotate. Since the two wire rollers 3 are covered with wire mesh 4, the rotation of the wire rollers 3 causes the wire mesh 4 to start circulating. At the same time, the end of the left transmission rod 2 away from motor 13 drives the drive wheel 10. The rotation of the transmission rod 2 drives the drive wheel 10 to rotate. The drive wheel 10 drives the driven wheel 11 through the belt pulley 12. The rotation of the driven wheel 11 drives the left transmission rod 5 to rotate. The rotation of the transmission rod 5 causes the wire roller 6 to rotate, which in turn causes the wire mesh 7 covered with the two wire rollers 6 to also move synchronously. At this time, the feed frame 8 at the left top corner of the fixed plate 1 starts working and feeds the smooth pulp onto the circulating wire mesh 4. As the wire mesh 4 moves, the pulp gradually enters the area between the wire mesh 4 and the wire mesh 7. As the mesh fabric 4 and mesh fabric 7 continue to circulate, the pulp sandwiched between them is transported to the vacuum box 9 at the bottom of the fixed plate 1. The vacuum box 9 is activated and uses the vacuum environment it generates, along with the mesh structure of the mesh fabric 4 and mesh fabric 7, to dewater the pulp. Under the combined action of gravity and vacuum suction, the water in the pulp is absorbed by the vacuum box 9 through the mesh of the mesh fabric 4 and mesh fabric 7, causing the pulp to be initially concentrated to form a wet paper web. In this process, because the distance between the two mesh rollers 26 is greater than the distance between the two mesh rollers 13, and the length of the mesh fabric 27 is slightly greater than that of the mesh fabric 14, this structure allows the pulp to come into more full contact with the mesh fabric during the movement, improving the dewatering effect. As the mesh fabric 4 and mesh fabric 27 move, the wet paper web gradually moves closer to the conveying area of ​​the felt 17 on the right side of the device. When the wet paper web moves to the right side of the device along with the wire mesh 4, it is conveyed to the inclined plate 15. The inclined plate 15 is installed at the connection between the top of the support plate 14 and the right side of the fixed plate 1. It guides the wet paper web from the wire mesh 4 to the felt 17 smoothly. At this time, the motor 18 at the rear end of the rear support plate 14 runs, and its drive end drives the left tension roller 16 to rotate. Since the felt 17 is sleeved on the outside of the two tension rollers 16, the rotation of the tension rollers 16 causes the felt 17 to start to move in a cycle. At the same time, the multiple transmission rollers 22 located between the two tension rollers 16 on the side of the two support plates 14 are in contact with the inner ring of the felt 17. They play a supporting and guiding role when the felt 17 moves in a cycle, ensuring that the wet paper web is stably conveyed to the right side along with the felt 17. During the cyclic movement of the felt 17, the pressure rollers 20 on the multiple receiving plates 19 fixedly connected to the top of the support plate 14 begin to squeeze and dehydrate the wet paper web. If the position of the pressure rollers 20 needs to be adjusted, the turning assembly can be operated: rotate the rotating disk 27 at the top of the receiving plate 19, which is equipped with a threaded rod 25. The rotating disk 27 drives the threaded rod 25 to rotate. The rotation of the threaded rod 25 causes the sliding block 26, which is threaded to it, to slide on the inner wall of the receiving plate 19. The sliding block 26 drives the rotating rod 21 to move, thereby adjusting the position of the pressure rollers 20 rotatably connected to the outside of the rotating rod 21. The auxiliary rod on the inner wall of the receiving plate 19 on the other side is slidably connected to the sliding block 26 to complete the position adjustment of the pressure rollers 20. The adjusted multiple pressure rollers 20 are at the top of the felt 17 and correspond to the transmission rollers 22 on the inner ring side of the felt 17 to apply pressure to the wet paper web on the felt 17, further squeezing out the residual water and improving the dryness of the wet paper web.

[0026] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A wire mesh dewatering device for producing glossy paper, characterized in that, include: A fixed plate (1) is symmetrically connected to a transmission rod (2) on the inner wall of the top end of the fixed plate (1). A mesh roller (3) is fixedly connected to the outside of the transmission rod (2). A mesh cloth (4) is sleeved on the outside of the two mesh rollers (3). A transmission rod (5) is symmetrically connected to the inner wall of the bottom end of the fixed plate (1). A mesh roller (6) is fixedly connected to the outside of the transmission rod (5). A mesh cloth (7) is sleeved on the outside of the two mesh rollers (6). A feed frame (8) is installed at the left top corner of the fixed plate (1). A vacuum box (9) is fixedly connected to the bottom end of the fixed plate (1). The transmission assembly is mounted on the outside of one end of the fixed plate (1); Two support plates (14) are fixedly connected to the bottom right side of the support plate (14). An inclined plate (15) is installed at the top of the support plate (14) and the right side of the fixed plate (1). Tensioning rollers (16) are rotatably connected to both ends of the two support plates (14) on the same side. The two tensioning rollers (16) are covered with felt (17). A motor (18) is installed at the rear end of the support plate (14). The top of the receiving plate (19) and the support plate (14) are fixedly connected to a plurality of receiving plates (19). A rotating rod (21) is slidably connected to the inner wall of each pair of receiving plates (19) on the same side. A pressure roller (20) is rotatably connected to the outside of the rotating rod (21). A plurality of transmission rollers (22) are rotatably connected between the two support plates (14) on the same side between the two tension rollers (16). The screwing assembly is installed inside one of the plurality of the receiving plates (19) on one side, and an auxiliary rod is fixedly connected to the inner wall of the plurality of the receiving plates (19) on the other side.

2. The wire mesh dewatering device for producing glossy paper according to claim 1, characterized in that, The transmission assembly includes a drive wheel (10), one side of the drive wheel (10) is rotatably connected to the outside of one side of the fixed plate (1), a driven wheel (11) is rotatably connected to the bottom of one side of the fixed plate (1), a pulley (12) is sleeved on the outside of the drive wheel (10) and the driven wheel (11), and a motor (13) is installed on the other side of the fixed plate (1).

3. The mesh dewatering device for producing glossy paper according to claim 1, characterized in that, The screwing assembly includes a threaded rod (25), the end of which is rotatably connected to the inner wall end of one of the plurality of receiving plates (19) on one side, and a plurality of sliding blocks (26) are slidably connected to the inner wall of the receiving plate (19), and a rotating disk (27) is rotatably connected to the top of the receiving plate (19) on which the threaded rod (25) is installed.

4. The mesh dewatering device for producing glossy paper according to claim 1, characterized in that, The distance between the two said two rollers (6) is greater than the distance between the two said two rollers (3).

5. The wire mesh dewatering device for producing glossy paper according to claim 1, characterized in that, The drive end of the second motor (18) is fixedly connected to the rear end of the tension roller (16) on the left, and the outer side of the multiple transmission rollers (22) is in contact with the inner ring of the felt (17).

6. The mesh dewatering device for producing glossy paper according to claim 1, characterized in that, The bottom ends of the fixed plate (1) and the support plate (14) are both fixedly connected to multiple support legs (23), and the bottom ends of the multiple support legs (23) are all fixedly connected to support pads (24).

7. The mesh dewatering device for producing glossy paper according to claim 2, characterized in that, The drive end of motor 1 (13) is fixedly connected to one end of the transmission rod 1 (2) on the left side. The outer end of the transmission rod 1 (2) on the left side away from motor 1 (13) is fixedly connected to the inner wall of the drive wheel (10). The outer end of the transmission rod 2 (5) on the left side is fixedly connected to the inner wall of the driven wheel (11).

8. The wire mesh dewatering device for producing glossy paper according to claim 3, characterized in that, On one side, the inner walls of multiple sliding blocks (26) are threaded to the outside of the threaded rod (25), and on the other side, the inner walls of multiple sliding blocks (26) are slidably connected to the outside of the auxiliary rod. The bottom axis of the rotating disk (27) is fixedly connected to the top axis of the threaded rod (25), and the adjacent sides of the two sliding blocks (26) are fixedly connected to both ends of the rotating rod (21).

Images