Press roller with self-cleaning function for paper machine

By combining a mechanical doctor blade and an air suction plate on the paper machine pressure roll, automatic cleaning of the pressure roll surface is achieved, solving the problem of needing to stop the machine for disassembly and cleaning in the existing technology, improving work efficiency and reducing the wear of the mechanical doctor blade.

CN224213036UActive Publication Date: 2026-05-08DANDONG XINSHENG PAPER MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DANDONG XINSHENG PAPER MASCH CO LTD
Filing Date
2025-05-21
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The pressure rollers of existing paper machines require the machine to be stopped and disassembled when cleaning fibers and impurities, resulting in low work efficiency.

Method used

The system employs a combination of a mechanical scraper and a suction plate. The mechanical scraper cleans the fibers and impurities from the surface of the pressure roller, while the suction plate removes the cleaned impurities and fibers, achieving automatic cleaning without stopping the machine.

Benefits of technology

It enables automatic cleaning of the pressure roller surface, improves work efficiency, reduces manual intervention, and avoids wear of mechanical scrapers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a papermaking machine compression roller with a self-cleaning function, which relates to the technical field of papermaking machine compression rollers and comprises a fixing block, a compression roller body is mounted in the fixing block, a mechanical scraper is slidably connected to the outer surface of the fixing block, an air suction plate is connected to the inside of the fixing block, and the air suction plate is slidably connected to the outer surface of the compression roller body. A conveying pipe communicates with the interior of the air suction plate, an air conveying plate communicates with the upper end of the conveying pipe, an air suction pipe communicates with the interior of the air conveying plate, a transmission plate is connected to the outer surface of the mechanical scraper, a fixing plate is connected to the bottom face of the transmission plate, and an insertion plate is connected to the outer surface of the fixing plate. And the outer surface of the insertion plate is slidably connected with a storage box. Through cooperation of the mechanical scraper and the air suction plate, the mechanical scraper can clean the compression roller body, the air suction plate can suck away cleaned impurities and fibers, shutdown is not needed, manual cleaning by a user is not needed, and the problem that the working efficiency is low due to manual cleaning is solved.
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Description

Technical Field

[0001] This utility model relates to the field of paper machine pressure roller technology, specifically a paper machine pressure roller with a self-cleaning function. Background Technology

[0002] A paper machine is a general term for a complete set of equipment that links different parts of the pulp to form a paper web. The function of the paper machine's pressure rollers during operation is usually to press the pulp, remove moisture, and make the paper more compact.

[0003] During the pressing of pulp and removal of moisture, fibers or impurities may adhere to the surface of the pressure rollers. If these fibers or impurities are not cleaned for a long time, they may cause blockage of the equipment. Some existing pressure rollers usually require workers to disassemble them for cleaning, which requires shutting down the machine. This method is not only labor-intensive but also reduces work efficiency. To solve these problems, we provide pressure rollers with self-cleaning function for papermaking machines. Utility Model Content

[0004] 1) Technical problems to be solved

[0005] This invention proposes a pressure roller for a papermaking machine with a self-cleaning function, which solves the problem of low work efficiency caused by manual cleaning through the cooperation between a mechanical scraper and an air suction plate.

[0006] (ii) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning pressure roller for a papermaking machine, comprising a fixed block, a pressure roller body installed inside the fixed block, a mechanical scraper slidably connected to the outer surface of the fixed block, and an air suction plate connected inside the fixed block;

[0008] The air intake plate is connected to a transport pipe inside, and the upper end of the transport pipe is connected to an air delivery plate. The air delivery plate is connected to an air intake pipe inside.

[0009] A transmission plate is connected to the outer surface of the mechanical scraper, a fixed plate is connected to the bottom surface of the transmission plate, an insert plate is connected to the outer surface of the fixed plate, and a storage box is slidably connected to the outer surface of the insert plate.

[0010] Furthermore, a cylinder is installed on the upper surface of the storage box, and the output end of the cylinder is connected to the outer surface of the transmission plate.

[0011] Furthermore, a horizontal plate is connected to the outer surface of the fixing block, the outer surface of the transport pipe is slidably connected to the inside of the horizontal plate, and the bottom surface of the gas conveying plate is connected to the upper surface of the horizontal plate.

[0012] Furthermore, the outer surface of the pressure roller body is slidably connected to the bottom surface of the mechanical scraper, and the upper surface of the mechanical scraper is slidably connected to the bottom surface of the suction plate.

[0013] Furthermore, the outer surface of the storage box is connected to the outer surface of the fixing block, and the outer surface of the storage box is in contact with the outer surface of the fixing plate.

[0014] Furthermore, the outer surface of the fixing plate is slidably connected to the outer surface of the fixing block, and the outer surface of the insert plate is slidably connected to the outer surface of the fixing block.

[0015] Furthermore, a support frame is connected to the upper surface of the horizontal plate, the suction pipe is installed inside the support frame, and a barrier plate is connected to the outer surface of the suction plate.

[0016] (iii) Beneficial effects:

[0017] Compared with existing technologies, the self-cleaning pressure rollers of this paper machine have the following advantages:

[0018] First, this paper machine features a self-cleaning pressure roller. Through the cooperation of a mechanical doctor blade and an air suction plate, the mechanical doctor blade cleans the pressure roller body, separating the fibers and impurities attached to the pressure roller body. After the impurities and fibers are separated from the pressure roller body, the air suction plate sucks away these cleaned impurities and fibers, thus completing the cleaning of impurities and fibers. There is no need to stop the machine or for the user to clean manually, which solves the problem of low work efficiency caused by manual cleaning.

[0019] Second, this paper machine features a self-cleaning pressure roller. Through the cooperation of components such as the transmission plate and the baffle plate, the transmission plate can move under the action of the cylinder. The movement of the transmission plate changes the position of the mechanical doctor blade, allowing the mechanical doctor blade to press the roller body, thereby reducing the contact time between the mechanical doctor blade and the pressure roller body and making the mechanical doctor blade less prone to wear. The baffle plate can block the mechanical doctor blade, preventing it from falling off the pressure roller body after cleaning impurities and fibers, which is very convenient. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a structural diagram of the present invention;

[0022] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 This is a structural diagram showing the connection relationship of the air intake plate of this utility model;

[0024] Figure 4 This is a cross-sectional view of the storage box of this utility model;

[0025] Figure 5 This is a right view showing the connection relationship of the fixing blocks in this utility model;

[0026] Figure 6 Figure A shows an enlarged view of the structure of this utility model.

[0027] In the diagram: 1. Fixed block; 2. Pressure roller body; 3. Mechanical scraper; 4. Suction plate; 5. Conveyor pipe; 6. Air conveying plate; 7. Suction pipe; 8. Transmission plate; 9. Fixed plate; 10. Insert plate; 11. Storage box; 12. Cylinder; 13. Horizontal plate; 14. Support frame; 15. Barrier plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] The pressure roller body 1 and cylinder 12 in this utility model are common electrical and hydraulic devices in the prior art, and this application will not elaborate on their models or internal structures.

[0030] like Figure 1-6 As shown, this utility model provides a technical solution: a self-cleaning pressure roller for a paper machine, including a fixing block 1, a pressure roller body 2 installed inside the fixing block 1, a mechanical scraper 3 slidably connected to the outer surface of the fixing block 1, and an air suction plate 4 connected inside the fixing block 1. The fixing block 1 restricts the position of the pressure roller body 2, which can rotate. When installing this device, the user needs to install the fixing block 1 on the paper machine. The fixing block 1 restricts the direction in which the mechanical scraper 3 can move. When the pressure roller body 2 rotates, it will rotate towards the mechanical scraper 3, allowing the mechanical scraper 3 to clean the pressure roller body 2. The impurities on the pressure roller body 2 that are cleaned off will be above the mechanical scraper 3. The fixing block 1 restricts the position of the air suction plate 4, which sucks away the scraped impurities, thereby completing the cleaning of the pressure roller body 2.

[0031] The inside of the suction plate 4 is connected to the transport pipe 5, and the upper end of the transport pipe 5 is connected to the air delivery plate 6. The inside of the air delivery plate 6 is connected to the suction pipe 7. One end of the suction pipe 7 is connected to a device similar to a vacuum cleaner. The suction pipe 7 can transmit the suction force to the air delivery plate 6, and then to the transport pipe 5. The transport pipe 5 then transmits this suction force to the suction plate 4, allowing the suction plate 4 to generate suction force.

[0032] A transmission plate 8 is connected to the outer surface of the mechanical scraper 3. A fixing plate 9 is connected to the bottom surface of the transmission plate 8. An insert plate 10 is connected to the outer surface of the fixing plate 9. A storage box 11 is slidably connected to the outer surface of the insert plate 10. When the transmission plate 8 moves, it will move the mechanical scraper 3 and the fixing plate 9. When the transmission plate 8 moves, it will move the fixing plate 9. When the fixing plate 9 moves, it will move the insert plate 10. The storage box 11 will restrict the direction in which the insert plate 10 can move and provide support for the insert plate 10, so that the weight of the mechanical scraper 3 will not be fully applied to the cylinder 12.

[0033] A cylinder 12 is mounted on the upper surface of the storage box 11. The output end of the cylinder 12 is connected to the outer surface of the transmission plate 8. The storage box 11 restricts the position of the cylinder 12. When the cylinder 12 is started, it will move the transmission plate 8, thereby allowing the transmission plate 8 to move the mechanical scraper 3.

[0034] The outer surface of the fixing block 1 is connected to the horizontal plate 13. The outer surface of the transport pipe 5 is slidably connected to the inside of the horizontal plate 13. The bottom surface of the gas delivery plate 6 is connected to the upper surface of the horizontal plate 13. The fixing block 1 will fix the position of the horizontal plate 13. The two fixing blocks 1 are connected by the horizontal plate 13. The horizontal plate 13 will restrict the position of the transport pipe 5 and fix the position of the gas delivery plate 6.

[0035] The outer surface of the pressure roller body 2 is slidably connected to the bottom surface of the mechanical scraper 3, and the upper surface of the mechanical scraper 3 is slidably connected to the bottom surface of the suction plate 4. When the pressure roller body 2 rotates, the fibers and impurities on it will be scraped off by the mechanical scraper 3, and the suction plate 4 will restrict the direction of movement of the mechanical scraper 3.

[0036] The outer surface of the storage box 11 is connected to the outer surface of the fixing block 1, and the outer surface of the storage box 11 is in contact with the outer surface of the fixing plate 9. The fixing block 1 restricts the position of the storage box 11. The contact between the storage box 11 and the fixing plate 9 restricts the position that the fixing plate 9 can move.

[0037] The outer surface of the fixing plate 9 is slidably connected to the outer surface of the fixing block 1, and the outer surface of the insert plate 10 is slidably connected to the outer surface of the fixing block 1. The fixing block 1 restricts the direction in which the fixing plate 9 and the insert plate 10 can move.

[0038] A support frame 14 is connected to the upper surface of the horizontal plate 13. The suction pipe 7 is installed inside the support frame 14. A baffle plate 15 is connected to the outer surface of the suction plate 4. The horizontal plate 13 restricts the position of the support frame 14, and the position of the suction pipe 7 is restricted by the support frame 14. The suction plate 4 fixes the position of the baffle plate 15. The baffle plate 15 can block the mechanical scraper 3, so that the mechanical scraper 3 will not fall off the pressure roller body 2 after cleaning up the impurities and fibers, and the suction plate 4 can suck up the cleaned impurities and fibers.

[0039] Working principle: When in use, cylinder 12 needs to be started first. Cylinder 12 will cause the transmission plate 8 to move the mechanical scraper 3, so that the mechanical scraper 3 contacts the outer surface of the pressure roller body 2. During this process, the rotation of the pressure roller body 2 will not stop. The rotation of the pressure roller body 2 will cause the mechanical scraper 3 to clean the impurities and fibers on the surface of the pressure roller body 2. Then, the user can let the suction pipe 7 suck up air. The suction pipe 7 sucks up air and the air conveying plate 6 will allow the conveying pipe 5 to transfer the suction force to the suction plate 4. The suction plate 4 will suck up the scraped impurities and fibers, thereby completing the cleaning of the garbage on the pressure roller body 2 without stopping the machine.

[0040] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A pressure roller for a papermaking machine with a self-cleaning function, comprising a fixing block (1), characterized in that: The pressure roller body (2) is installed inside the fixed block (1), a mechanical scraper (3) is slidably connected to the outer surface of the fixed block (1), and an air suction plate (4) is connected inside the fixed block (1). The air intake plate (4) is connected to a transport pipe (5), and the upper end of the transport pipe (5) is connected to an air delivery plate (6). The air delivery plate (6) is connected to an air intake pipe (7). The outer surface of the mechanical scraper (3) is connected to a transmission plate (8), the bottom surface of the transmission plate (8) is connected to a fixing plate (9), the outer surface of the fixing plate (9) is connected to an insert plate (10), and the outer surface of the insert plate (10) is slidably connected to a storage box (11).

2. A self-cleaning pressure roller for a papermaking machine according to claim 1, characterized in that: A cylinder (12) is installed on the upper surface of the storage box (11), and the output end of the cylinder (12) is connected to the outer surface of the transmission plate (8).

3. A self-cleaning pressure roller for a papermaking machine according to claim 1, characterized in that: The outer surface of the fixing block (1) is connected to a horizontal plate (13), the outer surface of the transport pipe (5) is slidably connected to the inside of the horizontal plate (13), and the bottom surface of the gas conveying plate (6) is connected to the upper surface of the horizontal plate (13).

4. A self-cleaning pressure roller for a papermaking machine according to claim 1, characterized in that: The outer surface of the pressure roller body (2) is slidably connected to the bottom surface of the mechanical scraper (3), and the upper surface of the mechanical scraper (3) is slidably connected to the bottom surface of the suction plate (4).

5. A self-cleaning pressure roller for a papermaking machine according to claim 1, characterized in that: The outer surface of the storage box (11) is connected to the outer surface of the fixing block (1), and the outer surface of the storage box (11) is in contact with the outer surface of the fixing plate (9).

6. A self-cleaning pressure roller for a papermaking machine according to claim 1, characterized in that: The outer surface of the fixing plate (9) is slidably connected to the outer surface of the fixing block (1), and the outer surface of the insert plate (10) is slidably connected to the outer surface of the fixing block (1).

7. A self-cleaning pressure roller for a papermaking machine according to claim 3, characterized in that: The upper surface of the horizontal plate (13) is connected to a support frame (14), the suction pipe (7) is installed inside the support frame (14), and the outer surface of the suction plate (4) is connected to a barrier plate (15).