A pulp dewatering device for decorative base paper production
By using a screw-driven extrusion structure and a quick-change dewatering frame design, the problems of low pulp dewatering efficiency and cumbersome frame replacement are solved, achieving efficient pulp dewatering and quick replacement, thus improving the efficiency of decorative base paper production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINAN ZHONGSHIDA PACKAGING TECHNOLOGY CO LTD
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-24
AI Technical Summary
Existing pulp dewatering equipment suffers from low dewatering efficiency, insufficient leakage prevention, and cumbersome dewatering frame replacement, failing to meet the demand for efficient production of decorative base paper.
The screw-driven extrusion structure and quick-change dewatering frame design, combined with sealing rings and filter screens, enable efficient pulp dewatering, and the dewatering frame can be quickly replaced via motor drive.
It improves pulp dewatering efficiency, reduces residual moisture, prevents pulp leakage, shortens the time for changing dewatering frames, and enhances the efficiency of continuous production operations.
Smart Images

Figure CN224548832U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of decorative base paper production equipment, and in particular to a pulp dewatering device for decorative base paper production. Background Technology
[0002] In the production of decorative base paper, pulp dewatering is a crucial step that determines the quality and production efficiency of the base paper. With the increasing demands for product precision and capacity in the decorative base paper market, traditional dewatering equipment, due to its low dewatering efficiency, insufficient automation, and cumbersome dewatering frame replacement, is no longer sufficient to meet the needs of large-scale production. Therefore, technological innovation is urgently needed to achieve a synergistic optimization of efficient dewatering and convenient operation.
[0003] Existing pulp dewatering equipment has significant drawbacks: First, the dewatering structure design is outdated, often employing gravity-driven natural dripping or a single extrusion method, resulting in long dewatering times and high residual moisture content, failing to meet the low moisture content requirements of decorative base paper. Second, leakage prevention and filtration functions are insufficient; traditional equipment lacks sealing structures and high-efficiency filtration components, making it prone to pulp leakage or water splashing during dewatering, contaminating the equipment and affecting the quality of the base paper. Third, the dewatering frame replacement process is cumbersome, employing a fixed installation design that requires stopping the machine to disassemble multiple components before replacing the dewatering frame, leading to long production interruptions and severely impacting the continuous operation efficiency of the production line. Furthermore, the non-automated dewatering process requires frequent manual intervention, increasing labor intensity and production costs. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pulp dewatering device for decorative base paper production. This device aims to solve the problems of low dewatering efficiency, insufficient leakage prevention, and cumbersome replacement of dewatering frames in existing pulp dewatering devices.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A pulp dewatering device for decorative base paper production includes a base, a connecting frame fixedly connected to the rear side of the base, an installation groove on the left end of the front side of the connecting frame, a through groove on the top side of the installation groove, an installation block inside the installation groove, a fixing groove on the top side of the installation block, a fixing component inside the fixing groove, a dewatering frame fixedly connected to the front side of the installation block, and a filter component inside the dewatering frame.
[0007] Furthermore, the fixing component includes a movable bar, a rotating plate rotatably connected to the top side of the movable bar, a pull tab fixedly connected to the top side of the rotating plate, the bottom ends of the outer wall of the movable bar and the outer wall of the rotating plate being located inside the fixing groove, and the top side of the outer wall of the rotating plate being located inside the through groove.
[0008] Furthermore, a motor is installed at the right end inside the connecting frame, and a screw is fixedly connected to the drive end of the motor. A limit strip is rotatably connected to the top side of the screw, and the left end of the bottom side of the limit strip and the left end of the top side of the connecting frame are connected by a slide rod.
[0009] Furthermore, a movable block is sleeved on the outer wall of the screw, the slide rod is slidably connected to the left end inside the movable block, and a movable block is fixedly connected to the front side of the movable block.
[0010] Furthermore, a mounting plate is fixedly connected to the front side of the movable block, a pressure block is fixedly connected to the bottom side of the mounting plate, and a sealing ring is fixedly connected to the bottom end of the outer wall of the pressure block.
[0011] Furthermore, the filter assembly includes a filter screen, which is fixedly connected to the bottom end of the inner wall of the dewatering frame, and a non-woven fabric is fixedly connected to the top side of the filter screen.
[0012] Furthermore, the bottom side of the inner wall of the base is provided with a slope.
[0013] Furthermore, a water outlet is fixedly connected to the bottom of the front side of the base, and a limiting plate is fixedly connected to the top of the front side of the base, with the top of the rear side of the limiting plate abutting against the bottom of the front side of the dehydration frame.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, the starting motor drives the screw to rotate, which in turn moves the moving block and the mounting plate downward. The pressing block squeezes the pulp to dewater it. The sealing ring on the outer wall of the pressing block cooperates with the non-woven fabric on the top side of the filter screen to prevent water from overflowing and pulp from leaking out. The squeezed water flows out from the outlet along the slope, achieving efficient dewatering of the pulp and ensuring the dewatering effect and the cleanliness of the device.
[0016] 2. In this utility model, after the pulp dewatering is completed, the reverse drive motor moves the pressure block upward, pulls out the rotating plate through the pull tab and rotates it to the top side of the connecting frame. After removing the dewatering frame, a new one is installed, and then the rotating plate is reset to the limit position. The dewatering frame can be replaced quickly, reducing the downtime of the device and improving the dewatering efficiency of decorative base paper production. Attached Figure Description
[0017] Figure 1 This is a perspective view of a pulp dewatering device for producing decorative base paper according to the present invention;
[0018] Figure 2 This is a schematic diagram of the mounting block structure of a pulp dewatering device for decorative base paper production proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the dewatering frame structure of a pulp dewatering device for decorative base paper production proposed in this utility model;
[0020] Figure 4 This is a schematic diagram of the internal structure of a pulp dewatering device for producing decorative base paper, as proposed in this utility model.
[0021] Legend:
[0022] 1. Base; 2. Outlet; 3. Limiting plate; 4. Dehydration frame; 5. Sealing ring; 6. Pressure block; 7. Mounting plate; 8. Slide rod; 9. Limiting strip; 10. Screw; 11. Moving block; 12. Connecting frame; 13. Mounting block; 14. Fixing groove; 15. Moving strip; 16. Rotating plate; 17. Pull plate; 18. Through groove; 19. Mounting groove; 20. Filter screen; 21. Non-woven fabric; 22. Slope; 23. Motor. Detailed Implementation
[0023] 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.
[0024] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a pulp dewatering device for decorative base paper production, comprising a base 1, a connecting frame 12 fixedly connected to the rear side of the base 1, an installation groove 19 opened at the left end of the front side of the connecting frame 12, a through groove 18 opened at the top side of the installation groove 19, an installation block 13 disposed inside the installation groove 19, a fixing groove 14 opened at the top side of the installation block 13, a moving strip 15 disposed inside the fixing groove 14, a dewatering frame 4 fixedly connected to the front side of the installation block 13, a filter screen 20 disposed inside the dewatering frame 4, a motor 23 installed at the right end inside the connecting frame 12, a screw 10 fixedly connected to the drive end of the motor 23, a limit strip 9 rotatably connected to the top side of the screw 10, and a limit strip 9 at the bottom left end of the limit strip 9. The left end of the top side of the connecting frame 12 is connected to the sliding rod 8. The outer wall of the screw 10 is fitted with a moving block 11. The sliding rod 8 is slidably connected to the left end inside the moving block 11. The front side of the moving block 11 is fixedly connected to the moving block 11. The front side of the moving block 11 is fixedly connected to the mounting plate 7. The bottom side of the mounting plate 7 is fixedly connected to the pressure block 6. The bottom end of the outer wall of the pressure block 6 is fixedly connected to the sealing ring 5. The filter screen 20 is fixedly connected to the bottom end of the inner wall of the dewatering frame 4. The top side of the filter screen 20 is fixedly connected to the non-woven fabric 21. The bottom side of the inner wall of the base 1 is provided with a slope 22. The bottom end of the front side of the base 1 is fixedly connected to the water outlet 2. The top end of the front side of the base 1 is fixedly connected to the limiting plate 3. The top end of the rear side of the limiting plate 3 abuts against the bottom end of the front side of the dewatering frame 4.
[0025] Specifically, when using this dewatering device for decorative base paper production, the operation process revolves around pulp dewatering and changing the dewatering frame. First, the pulp is placed into the dewatering frame 4, and the motor 23 is started to drive the screw 10 to rotate, which moves the moving block 11 and the mounting plate 7 downward, causing the pressure block 6 to squeeze the pulp for dewatering. The sealing ring 5 on the outer wall of the pressure block 6 cooperates with the non-woven fabric 21 on the top side of the filter screen 20 to prevent water from overflowing upward and pulp from leaking out. The squeezed water flows out from the outlet 2 along the slope 22 of the base 1.
[0026] Reference Figure 1 and Figure 2 A rotating plate 16 is rotatably connected to the top side of the moving strip 15, and a pull tab 17 is fixedly connected to the top side of the rotating plate 16. The bottom ends of the outer walls of the moving strip 15 and the outer walls of the rotating plate 16 are located inside the fixed groove 14, and the top side of the outer wall of the rotating plate 16 is located inside the through groove 18.
[0027] Specifically, after pulp dewatering is completed, the reverse drive motor moves the pressure block 6 upwards to detach from the dewatering frame. The pull tab 17 pulls out the rotating plate 16 and rotates it, so that its bottom side is locked onto the top side of the connecting frame 12. After removing the dewatering frame 4, a new dewatering frame is installed, and then the rotating plate 16 is reset and inserted into the fixing groove 14 for limiting. This device achieves efficient pulp dewatering through a screw-driven extrusion structure. Combined with the design of a quickly replaceable dewatering frame, it reduces downtime and improves the dewatering efficiency of decorative base paper production.
[0028] Working principle: In use, firstly, the pulp to be dewatered is placed inside the dewatering frame 4. Then, the motor 23 is started, driving the screw 10 to rotate, thereby moving the moving block 11 and the mounting plate 7 downwards. The mounting plate 7 then moves the pressure block 6 downwards, causing the pressure block 6 to squeeze the pulp inside the dewatering frame 4, thus squeezing out the water. Because the outer wall of the pressure block 6 is equipped with a sealing ring 5 and the top side of the filter screen 20 is equipped with non-woven fabric 21, the squeezed water will not move upwards, and the pulp will not pass through the non-woven fabric 21 and fall into the base 1. After the squeezed water falls into the base 1, it will flow down the slope 22 into the outlet 2 and out. After the pulp dewatering is completed, the first First, the reverse drive motor 23 drives the moving block 11 to move the mounting plate 7 upward and make the pressure block 6 leave the inside of the dewatering frame 4. Then, the pull plate 17 pulls out the rotating plate 16. After the rotating plate 16 is completely pulled out of the fixed groove 14, the rotating plate 16 is rotated so that the two ends of the bottom side of the rotating plate 16 are locked on the top side of the connecting frame 12. Then, the dewatering frame 4 and the mounting block 13 are removed, so that the mounting block 13 of another dewatering frame 4 filled with pulp can be installed into the inside of the mounting groove 19. Then, the rotating plate 16 is reset and reinserted into the inside of the fixed groove 14 to reposition the newly installed mounting block 13 and the dewatering frame 4. This allows for quick replacement of the dewatering frame 4, reduces the overall downtime of the device, and improves work efficiency.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pulp dewatering device for decorative base paper production, characterized in that, Includes a base (1), a connecting frame (12) is fixedly connected to the rear side of the base (1), an installation groove (19) is provided at the left end of the front side of the connecting frame (12), a through groove (18) is provided on the top side of the installation groove (19), an installation block (13) is provided inside the installation groove (19), a fixing groove (14) is provided on the top side of the installation block (13), a fixing component is provided inside the fixing groove (14), a dewatering frame (4) is fixedly connected to the front side of the installation block (13), and a filter component is provided inside the dewatering frame (4).
2. The pulp dewatering device for decorative base paper production according to claim 1, characterized in that, The fixing component includes a movable strip (15), a rotating plate (16) is rotatably connected to the top side of the movable strip (15), a pull tab (17) is fixedly connected to the top side of the rotating plate (16), the bottom ends of the outer wall of the movable strip (15) and the outer wall of the rotating plate (16) are located inside the fixing groove (14), and the top side of the outer wall of the rotating plate (16) is located inside the through groove (18).
3. The pulp dewatering device for decorative base paper production according to claim 1, characterized in that: A motor (23) is installed at the right end inside the connecting frame (12). A screw (10) is fixedly connected to the drive end of the motor (23). A limit strip (9) is rotatably connected to the top side of the screw (10). The left end of the bottom side of the limit strip (9) and the left end of the top side of the connecting frame (12) are connected by a slide rod (8).
4. The pulp dewatering device for decorative base paper production according to claim 3, characterized in that: The outer wall of the screw (10) is fitted with a movable block (11), the slide rod (8) is slidably connected to the left end inside the movable block (11), and the front side of the movable block (11) is fixedly connected to the movable block (11).
5. The pulp dewatering device for decorative base paper production according to claim 4, characterized in that: The front side of the movable block (11) is fixedly connected to an installation plate (7), the bottom side of the installation plate (7) is fixedly connected to a pressure block (6), and the bottom end of the outer wall of the pressure block (6) is fixedly connected to a sealing ring (5).
6. The pulp dewatering device for decorative base paper production according to claim 1, characterized in that, The filter assembly includes a filter screen (20), which is fixedly connected to the bottom end of the inner wall of the dewatering frame (4), and a non-woven fabric (21) is fixedly connected to the top side of the filter screen (20).
7. The pulp dewatering device for decorative base paper production according to claim 1, characterized in that: The bottom side of the inner wall of the base (1) is provided with a ramp (22).
8. The pulp dewatering device for decorative base paper production according to claim 1, characterized in that: A water outlet (2) is fixedly connected to the bottom of the front side of the base (1), and a limiting plate (3) is fixedly connected to the top of the front side of the base (1). The top of the rear side of the limiting plate (3) abuts against the bottom of the front side of the dehydration frame (4).