Apparatus for eliminating vacuum marks on the paper surface of grey board

Abstract

The utility model relates to grey board production technical field especially relates to a device for eliminating vacuum mark on the surface of grey board. The device for eliminating vacuum mark on the surface of grey board comprises two support plates, fixed plate, drive assembly, link plate, transmission assembly, containing long piece, self -adaptation component, and the right -hand member fixed connection of support plate has the temporary storage board, and the similar side rotationally connected with two net rollers of two support plates, and the outside of two net rollers is equipped with the mesh cloth, and the front side installation of front side support plate has the motor, and the top fixed connection of support plate has the fixed plate, and the both sides inner wall of fixed plate all are connected with the sliding rod that slides, and the far side fixed connection of multiple sliding rods all has the baffle disc, and the similar side fixed connection of multiple sliding rods has two limit plates. The utility model can adjust the spacing of limiting flexibly, adapt to different width grey board, always adapt to the thickness of paperboard, guarantee the uniformity of dehydration and the flatness of paper surface.

Description

Technical Field

[0001] This utility model relates to the field of gray cardboard production technology, and in particular to a device for eliminating vacuum marks on the surface of gray cardboard. Background Technology

[0002] Eliminating vacuum marks on grey cardboard refers to the process of removing defects such as dents and imprints caused by uneven dehydration or abnormal vacuum adsorption during processing, through specific techniques or equipment. Such devices are necessary because vacuum marks disrupt the surface smoothness of the cardboard, affecting not only the precision of subsequent processing such as printing and lamination but also reducing the product's appearance quality. This problem is particularly pronounced and has a greater impact on high-grammage, thick grey cardboard. These devices address the issue specifically, ensuring the performance and quality of the grey cardboard.

[0003] Most devices for eliminating vacuum marks on gray cardboard typically place the cardboard on a conveyor belt, which then transports it between a vacuum roller and a drive roller. The pressure between these two rollers is used for dehydration. However, since the distance between them is fixed, the vacuum suction and pressure of the vacuum roller cannot be dynamically adjusted. When the cardboard is thicker in some areas, the actual gap between the rollers becomes smaller, and the vacuum suction becomes excessively concentrated in that area. Because the cardboard is too tightly attached to the roller surface, the suction effect of the roller holes is amplified. In thinner areas, the adhesion is not tight, and the suction effect is weak and dispersed. This causes the paper surface to be pulled and dented in areas of strong suction, while areas of weak suction suffer from insufficient dehydration, resulting in a decrease in paper surface smoothness. Ultimately, this affects both the dehydration effect and the appearance.

[0004] Therefore, it is necessary to provide a new device for eliminating vacuum marks on the surface of gray cardboard to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a device for eliminating vacuum marks on the surface of gray cardboard.

[0006] This utility model provides a device for eliminating vacuum marks on gray cardboard, comprising: two support plates, a fixed plate, a drive assembly, a connecting plate, a transmission assembly, a receiving block, and an adaptive assembly. A temporary storage plate is fixedly connected to the right end of each support plate. Two wire rollers are rotatably connected to adjacent sides of the two support plates. A mesh fabric is fitted over the outer surface of the two wire rollers. A motor is mounted on the front side of the front support plate. A fixed plate is fixedly connected to the top of each support plate. Sliding rods are slidably connected to the inner walls of both sides of the fixed plate. Baffles are fixedly connected to the far sides of the sliding rods. Two limiting plates are fixedly connected to one side. Vacuum boxes are fixedly connected to the bottom ends of the two support plates. A drive assembly is installed on the inner wall of the middle end of the fixed plate. A connecting plate is fixedly connected to the left end of the support plate. A rotating roller is rotatably connected to the adjacent side of the two connecting plates. A transmission assembly is installed on the left end of the front side of the front support plate. A long block is fixedly connected to the top of the connecting plate. An elongated hole is opened on the adjacent side of the two long blocks. A connecting block is slidably connected to the inner wall of the elongated hole. A vacuum roller is rotatably connected to the inner wall of the adjacent side of the two connecting blocks. The vacuum roller is located directly above the rotating roller.

[0007] Preferably, the drive assembly includes a threaded rod, the outer side of which is threaded to the inner wall of the middle end of the fixed plate, and a rotating disc is fixedly connected to the far side of each of the two threaded rods.

[0008] Preferably, the transmission assembly includes a drive wheel, the rear end of which is rotatably connected to the front left end of the front support plate, and a driven wheel is rotatably connected to the front side of the front connecting plate. A pulley is sleeved on the outside of the drive wheel and the driven wheel.

[0009] Preferably, the adaptive component includes a sliding block, the outer side of which is slidably connected to the inner wall of the receiving long block, a fixing rod fixedly connected to the inner wall of the receiving long block, and a spring sleeved on the outer side of the fixing rod.

[0010] Preferably, the drive end of the motor is fixedly connected to the front end of the right-side mesh roller.

[0011] Preferably, the adjacent sides of the two threaded rods are rotatably connected to the distant sides of the two limiting plates.

[0012] Preferably, the rear end shaft of the drive wheel is fixedly connected to the front end shaft of the left-side mesh roller, and the rear end shaft of the driven wheel is fixedly connected to the front end shaft of the rotating roller.

[0013] Preferably, the outer side of the fixed rod is slidably connected to the inner wall of the sliding block, the top end of the spring is fixedly connected to the inner top end of the receiving long block, the bottom end of the spring is fixedly connected to the top end of the sliding block, and the far side of the two connecting blocks is fixedly connected to the near side of the two sliding blocks.

[0014] Compared with related technologies, the device for eliminating vacuum marks on the surface of gray cardboard provided by this utility model has the following beneficial effects: This invention uses a motor to drive the mesh roller to rotate, forming a circulating conveying surface with the help of the mesh fabric, which can stably transport gray cardboard. At the same time, the drive component can flexibly adjust the limit distance through the twisting disc, threaded rod, sliding rod, and limit plate to adapt to gray cardboard of different widths, making the equipment more compatible with diverse production needs.

[0015] When the gray cardboard is too thick, the vacuum roller drives the connecting block and sliding block to slide, and the compression springs adaptively increase the spacing. When encountering a thinner part, the springs reset and push the spacing to decrease. This dynamic adjustment ensures that the pressure and vacuum suction of the vacuum roller and the rotating roller are always adapted to the thickness of the cardboard, ensuring uniform dehydration and paper surface flatness.

[0016] This invention uses the linkage of the drive wheel, belt pulley, and driven wheel to coordinate the rotation of the wire roller with the auxiliary power of the rotating roller, making the gray cardboard conveying more stable and avoiding cardboard deviation and wrinkles caused by power mismatch. It ensures the dehydration and describing effect from the conveying stage. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a device for eliminating vacuum marks on the surface of gray cardboard provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the mesh fabric. Figure 3 for Figure 1 The diagram shows the structure of the support plate. Figure 4 for Figure 1 Enlarged view of point A in the image; Figure 5 for Figure 1 Enlarged view of point B in the image.

[0018] The following are the labels in the diagram: 1. Support plate; 2. Temporary storage plate; 3. Mesh roller; 4. Mesh fabric; 5. Motor; 6. Fixing plate; 7. Sliding rod; 8. Baffle plate; 9. Limiting plate; 10. Threaded rod; 11. Tightening disc; 12. Vacuum box; 13. Connecting plate; 14. Rotating roller; 15. Driving wheel; 16. Driven wheel; 17. Pulley; 18. Long block holder; 19. Long slot; 20. Connecting block; 21. Vacuum roller; 22. Sliding block; 23. Fixing rod; 24. Spring. Detailed Implementation

[0019] 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.

[0020] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0021] Please see Figures 1 to 5 A device for eliminating vacuum marks on gray cardboard includes: two support plates 1, a temporary storage plate 2 fixedly connected to the right end of the support plate 1 for temporarily placing gray cardboard for processing, two wire rollers 3 rotatably connected to the adjacent sides of the two support plates 1, a mesh cloth 4 sleeved on the outside of the two wire rollers 3, the mesh cloth 4 can rotate with the wire rollers 3 to realize a cyclic transmission action, and a motor 5 installed on the front side of the front support plate 1, the drive end of the motor 5 is fixedly connected to the front end of the right wire roller 3 to ensure that the motor 5 can stably drive the right wire roller 3 to rotate.

[0022] The top of the fixed plate 6 and the support plate 1 are fixedly connected to the fixed plate 6. The inner walls on both sides of the fixed plate 6 are slidably connected to the sliding rods 7. The far sides of the multiple sliding rods 7 are fixedly connected to the baffles 8 to limit the sliding range of the sliding rods 7. The near sides of the multiple sliding rods 7 are fixedly connected to the two limiting plates 9 to limit the gray cardboard. The bottom ends of the two support plates 1 are fixedly connected to the vacuum box 12 to provide a vacuum environment for the device.

[0023] The drive assembly is installed on the inner wall of the middle section of the fixed plate 6. The drive assembly includes threaded rods 10. The adjacent sides of the two threaded rods 10 are rotatably connected to the opposite sides of the two limiting plates 9. The outer side of the threaded rods 10 is threadedly connected to the inner wall of the middle section of the fixed plate 6. A turning disc 11 is fixedly connected to the opposite sides of the two threaded rods 10 to facilitate manual rotation of the threaded rods 10 by the operator. A connecting plate 13 is fixedly connected to the left end of the support plate 1. A rotating roller 14 is rotatably connected to the adjacent sides of the two connecting plates 13. The rotating roller 14 can be rotated.

[0024] The transmission assembly includes a drive wheel 15, the rear end of which is rotatably connected to the front left end of the front support plate 1. A driven wheel 16 is rotatably connected to the front side of the front connecting plate 13. The rear shaft of the drive wheel 15 is fixedly connected to the front shaft of the left mesh roller 3 to ensure power transmission. The rear shaft of the driven wheel 16 is fixedly connected to the front shaft of the rotating roller 14. A pulley 17 is sleeved on the outside of the drive wheel 15 and the driven wheel 16 to realize power transmission between the drive wheel 15 and the driven wheel 16.

[0025] The top of the connecting plate 13 is fixedly connected to the long block 18. The two long blocks 18 are provided with elongated holes 19 on their adjacent sides. The inner wall of the elongated holes 19 is slidably connected to the connecting block 20. The inner wall of the two connecting blocks 20 is rotatably connected to the adjacent side of the inner wall. The vacuum roller 21 is located directly above the rotating roller 14.

[0026] An adaptive component is installed on the inner wall of the long block 18. The adaptive component includes a sliding block 22. The far side of the two connecting blocks 20 is fixedly connected to the near side of the two sliding blocks 22. The outside of the sliding block 22 is slidably connected to the inner wall of the long block 18. A fixing rod 23 is fixedly connected to the inner wall of the long block 18. The outside of the fixing rod 23 is slidably connected to the inner wall of the sliding block 22 to guide the sliding of the sliding block 22. A spring 24 is sleeved on the outside of the fixing rod 23. The top end of the spring 24 is fixedly connected to the top end of the long block 18, and the bottom end of the spring 24 is fixedly connected to the top end of the sliding block 22. The elasticity of the spring 24 is used to achieve adaptive adjustment.

[0027] The working principle of the device for eliminating vacuum marks on gray cardboard provided by this utility model is as follows: When motor 5 starts, its drive end drives the right-side wire roller 3 to rotate. Since the two wire rollers 3 are covered with a mesh cloth 4, the rotation of the right-side wire roller 3 will drive the left-side wire roller 3 to rotate synchronously through the transmission action of the mesh cloth 4. The mesh cloth 4 will then move in a cycle under the support of the two wire rollers 3, forming a conveying surface for conveying gray cardboard. Before the device is running, the screwing disc 11 of the drive component can be operated. The screwing disc 11 drives the threaded rod 10 to rotate. The threaded rod 10 rotates on the inner wall of the middle end of the fixed plate 6. Since the threaded rod 10 is rotatably connected to the limiting plate 9 on the side closest to it, it will push the sliding rod 7 to slide on the inner walls of both sides of the fixed plate 6. The baffle 8 moves synchronously with the sliding rod 7, thereby adjusting the distance between the two limiting plates 9 to adapt to the limiting requirements of gray cardboard of different widths. After the width of the gray cardboard is adapted, the screwing disc 11 is stopped, and the position of the limiting plate 9 is fixed. The gray cardboard to be processed is placed on the mesh fabric 4. The cyclical movement of the mesh fabric 4 will drive the gray cardboard to the right end of the device. At the same time, the transmission component starts to work. The drive wheel 15 rotates along with the left mesh roller 3 driven by the mesh fabric 4. Then, the drive wheel 15 drives the driven wheel 16 to rotate through the externally sleeved pulley 17. The rotating roller 14 rotates on the side close to the two connecting plates 13, providing auxiliary power for the conveying of the gray cardboard. When the gray cardboard is conveyed to the area between the vacuum roller 21 and the rotating roller 14, the adaptive component plays a role. If there is a fluctuation in the thickness of the gray cardboard, when it encounters a thicker part, it will squeeze the vacuum roller 21 upward. The vacuum roller 21 drives the connecting block 20 to the elongated hole 1 that accommodates the long block 18. 9 slides upwards, and the connecting block 20 drives the sliding block 22 to slide on the inner wall of the receiving long block 18. While the sliding block 22 slides outside the fixed rod 23, it compresses the spring 24. The elastic deformation of the spring 24 realizes the adaptive adjustment of the distance between the vacuum roller 21 and the rotating roller 14. If a thin part is encountered, the spring 24 returns to its original position and pushes the sliding block 22 so that the connecting block 20 drives the vacuum roller 21 to move downwards, maintaining the reasonable pressure of the vacuum roller 21 and the rotating roller 14 on the gray paperboard. During this process, the vacuum box 12 continues to work, providing a vacuum environment for the vacuum roller 21. The vacuum roller 21 and the rotating roller 14 cooperate to dehydrate the gray paperboard by using pressure and vacuum suction when the gray paperboard passes between them.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, 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 device for eliminating vacuum marks on the surface of gray cardboard, characterized in that, include: Two support plates (1), a temporary storage plate (2) is fixedly connected to the right end of the support plate (1), two mesh rollers (3) are rotatably connected to the adjacent side of the two support plates (1), and a mesh cloth (4) is sleeved on the outside of the two mesh rollers (3). A motor (5) is installed on the front side of the front support plate (1). The top of the fixed plate (6) and the support plate (1) are fixedly connected to the fixed plate (6). The inner walls of both sides of the fixed plate (6) are slidably connected to the sliding rods (7). The far side of the multiple sliding rods (7) is fixedly connected to the baffle (8). The near side of the multiple sliding rods (7) is fixedly connected to two limiting plates (9). The bottom ends of the two support plates (1) are fixedly connected to the vacuum box (12). The drive assembly is installed on the inner wall of the middle section of the fixed plate (6); Connecting plate (13), the left end of the support plate (1) is fixedly connected to the connecting plate (13), and the two connecting plates (13) are rotatably connected to the adjacent side of the two connecting plates (13). The transmission assembly is installed on the left front end of the support plate (1) on the front side; The top of the connecting plate (13) is fixedly connected to the long block (18), and the two long blocks (18) are provided with long holes (19) on the adjacent side. The inner wall of the long hole (19) is slidably connected to the connecting block (20), and the inner wall of the two connecting blocks (20) is rotatably connected to the adjacent side of the connecting block (20). The vacuum roller (21) is located directly above the rotating roller (14). An adaptive component is installed on the inner wall of the long block (18).

2. The device for eliminating vacuum marks on the surface of gray cardboard according to claim 1, characterized in that, The drive assembly includes a threaded rod (10), the outer side of which is threaded to the inner wall of the middle end of the fixed plate (6), and a rotating disc (11) is fixedly connected to the far side of each of the two threaded rods (10).

3. The device for eliminating vacuum marks on the surface of gray cardboard according to claim 1, characterized in that, The transmission assembly includes a drive wheel (15), the rear end of the drive wheel (15) is rotatably connected to the front left end of the front support plate (1), and the front side of the connecting plate (13) is rotatably connected to a driven wheel (16). A pulley (17) is sleeved on the outside of the drive wheel (15) and the driven wheel (16).

4. The device for eliminating vacuum marks on the surface of gray cardboard according to claim 1, characterized in that, The adaptive component includes a sliding block (22), the outside of which is slidably connected to the inner wall of the receiving long block (18), and a fixing rod (23) is fixedly connected to the inner wall of the receiving long block (18), and a spring (24) is sleeved on the outside of the fixing rod (23).

5. The device for eliminating vacuum marks on the surface of gray cardboard according to claim 1, characterized in that, The drive end of the motor (5) is fixedly connected to the front end of the wire roller (3) on the right side.

6. The device for eliminating vacuum marks on the surface of gray cardboard according to claim 2, characterized in that, The two threaded rods (10) are rotatably connected to the two limiting plates (9) on opposite sides.

7. The device for eliminating vacuum marks on the surface of gray cardboard according to claim 3, characterized in that, The rear end shaft of the drive wheel (15) is fixedly connected to the front end shaft of the left-side mesh roller (3), and the rear end shaft of the driven wheel (16) is fixedly connected to the front end shaft of the rotating roller (14).

8. The device for eliminating vacuum marks on the surface of gray cardboard according to claim 4, characterized in that, The outer side of the fixed rod (23) is slidably connected to the inner wall of the sliding block (22), the top end of the spring (24) is fixedly connected to the inner top end of the receiving long block (18), the bottom end of the spring (24) is fixedly connected to the top end of the sliding block (22), and the far side of the two connecting blocks (20) is fixedly connected to the near side of the two sliding blocks (22).

Images