Screen cleaning mechanism for papermaking

Abstract

The utility model relates to the technical field of papermaking devices, and discloses a papermaking screen cleaning mechanism which comprises a pool body and further comprises a cleaning assembly, an inner cavity of the pool body is rotationally connected with a turnover plate, the surface of the turnover plate is fixedly connected with two sets of clamping assemblies, one end of the turnover plate is fixedly connected with a driven gear, and the other end of the turnover plate is fixedly connected with a driven gear. A fixing plate is fixedly connected to one side of the pool body, a driving gear is rotationally connected to an inner cavity of the fixing plate, an airflow pipeline is formed in an inner cavity of a turnover plate, a nozzle is fixedly connected to the surface of the turnover plate, and an air pipe one-way valve is fixedly connected to one side of the turnover plate; through the design of the overturning plate and the airflow blow-drying design, the cleaning and drying process of the screen can be completed in a short time, and the preparation time of the screen is greatly shortened, so that the production efficiency is remarkably improved, meanwhile, manual intervention is reduced, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment technology, specifically to a screen cleaning mechanism for papermaking. Background Technology

[0002] In the papermaking process, screens are typically used at the front of the paper machine for screening and grading pulp. They are one of the important auxiliary equipment in the papermaking process. Screens can remove impurities from the pulp, allowing fibers to mix better and preparing for the next steps of forming and drying. However, pulp and other impurities accumulate on papermaking screens during production, so regular cleaning is essential to ensure the efficiency of the screens and the quality of the paper. The design of cleaning mechanisms is usually to achieve automated cleaning, reduce manual labor costs, and improve cleaning results.

[0003] While existing papermaking screen cleaning mechanisms can effectively remove dirt and impurities from the screen surface during the cleaning process, ensuring that the screen can perform its filtering and screening functions normally, if cleaning water remains on the screen surface after the cleaning work is completed, it is necessary to spend a long time air drying or use manual wiping to speed up the drying process. These two methods are not only labor-intensive, but also undoubtedly increase the production process time and affect the efficiency of the entire production line in specific production environments.

[0004] In view of this, the present invention solves the above-mentioned technical problems by proposing a screen cleaning mechanism for papermaking. Utility Model Content

[0005] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for a papermaking screen cleaning mechanism. First, a clamping assembly is used to fix the screen. Then, a rotary motor is started, driving the drive gear to rotate, which in turn rotates the driven gear, thereby driving the tilting plate to rotate 180 degrees. This allows the tilted screen to enter the inner cavity of the cleaning tank. Cleaning water is then injected into the inner cavity of the tank, and the cleaning assembly is activated to brush the screen. After brushing, the rotary motor is started again, causing the drive gear to rotate the driven gear 90 degrees, which in turn rotates the tilting plate and the screen 90 degrees. During this process, the water on the screen surface naturally drips back into the tank due to gravity. Next, through a connection between an air pipe and a one-way valve, gas is introduced into the airflow pipe inside the tilting plate cavity and sprayed out from the nozzle, further drying the screen surface and removing any remaining dirt and impurities, thus completing the cleaning process.

[0006] This utility model provides the following technical solution: a papermaking screen cleaning mechanism, including a pool body;

[0007] It also includes a cleaning assembly. The inner cavity of the pool is rotatably connected to a flip plate. Two sets of clamping assemblies are fixedly connected to the surface of the flip plate. A driven gear is fixedly connected to one end of the flip plate. A fixed plate is fixedly connected to one side of the pool. A driving gear is rotatably connected to the inner cavity of the fixed plate. An airflow pipe is opened in the inner cavity of the flip plate. A nozzle is fixedly connected to the surface of the flip plate. A one-way valve for the air pipe is fixedly connected to one side of the flip plate.

[0008] As a preferred embodiment of this utility model, the clamping assembly includes a connecting plate, which is fixed to the surface of the flipping plate. A limit rod is slidably connected to the inner cavity of the connecting plate, and a clamping plate is fixedly connected to one end of the limit rod. Multiple return springs are provided on the opposite surfaces of the clamping plate and the connecting plate.

[0009] As a preferred embodiment of this utility model, the cleaning assembly includes a guide rod, which is fixed to the opposite side of the pool body. A threaded rod is rotatably connected inside the pool body. A translation plate is connected to the surfaces of the guide rod and the threaded rod. Multiple brush strips are provided in the inner cavity of the translation plate.

[0010] In a preferred embodiment of this invention, a servo motor is connected to one end of both the drive gear and the threaded rod, and the servo motor is connected to the drive gear and the threaded rod through a reducer.

[0011] As a preferred technical solution of this utility model, the number of nozzles is several, the nozzles are evenly distributed on the surface of the flip plate, the surface of the flip plate is provided with an anti-slip coating, and the brush strip is a wear-resistant brush strip.

[0012] As a preferred embodiment of this utility model, the gas pressure in the airflow pipeline is adjustable, and the flow rate and volume of the gas ejected from the nozzle can be controlled by adjusting the opening of the one-way valve in the air pipeline.

[0013] As a preferred embodiment of this utility model, a drain pipe is fixedly connected to the surface of the pool body, and an electromagnetic valve is provided in the inner cavity of the drain pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the prior art, after the screen is cleaned, it needs to be air-dried for a long time or wiped manually. This not only increases the labor intensity but also prolongs the production process time and affects the efficiency of the entire production line. This utility model, through the design of a flip plate and airflow drying design, can complete the cleaning and drying process of the screen in a short time, greatly shortening the preparation time of the screen, thereby significantly improving production efficiency, while reducing manual intervention and reducing the labor intensity of operators.

[0016] 2. In the cleaning process, the screen is brought into the inner cavity of the pool by the flipping plate, and the screen is thoroughly brushed by the cleaning components to ensure that dirt and impurities are completely removed. In addition, during the airflow drying process, the high-speed airflow can not only quickly dry the residual moisture on the screen surface, but also further blow away the small amount of dirt and impurities remaining on the screen, thereby improving the cleaning effect of the screen.

[0017] 3. Due to the high efficiency of the cleaning and drying process, the screen can be reused more quickly, thereby improving the utilization rate of the equipment, reducing downtime caused by screen cleaning and maintenance, and further improving the overall operating efficiency of the production line. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the limiting rod structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the airflow pipeline structure of this utility model.

[0022] In the diagram: 1. Pool body; 2. Tilting plate; 201. Driven gear; 202. Fixing plate; 203. Drive gear; 204. Airflow pipe; 205. Nozzle; 206. Air pipe check valve; 3. Connecting plate; 301. Limiting rod; 302. Clamping plate; 303. Return spring; 4. Guide rod; 401. Threaded rod; 402. Translation plate; 403. Brush strip; 5. Servo motor; 6. Drain pipe. 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] Please see Figure 1-4As shown, a papermaking screen cleaning mechanism includes a tank 1 for holding cleaning water and a screen, and a cleaning assembly for brushing dirt and impurities off the screen surface. A rotating plate 2 is rotatably connected to the inner cavity of the tank 1 for fixing and rotating the screen. Two sets of clamping assemblies are fixedly connected to the surface of the rotating plate 2 for fixing the screen. A driven gear 201 is fixedly connected to one end of the rotating plate 2, meshing with a driving gear 203 to rotate the rotating plate 2. A fixing plate 202 is fixedly connected to one side of the tank 1. A drive gear 203 is rotatably connected to the inner cavity of the fixed plate 202. The drive gear 203 transmits power. An airflow pipe 204 is provided inside the inner cavity of the tilting plate 2 to guide airflow. A nozzle 205 is fixedly connected to the surface of the tilting plate 2. The nozzle 205 is installed at the end of the airflow pipe 204 to spray gas. A one-way valve 206 is fixedly connected to one side of the tilting plate 2 to control the gas flow direction and prevent cleaning water from flowing back into the inner cavity of the air pipe. The clamping assembly includes a connecting plate 3, which is fixed to the surface of the tilting plate 2. A limiting rod 301 is slidably connected to the inner cavity of the connecting plate 3. A clamping plate 302 is fixedly connected to one end of the limiting rod 301. Multiple return springs 303 are provided on the opposite surface of the clamping plate 302 and the connecting plate 3. The cleaning assembly includes a guide rod 4, which is fixed to the opposite surface of the pool body 1. A threaded rod 401 is rotatably connected inside the pool body 1. A translation plate 402 is connected to the surfaces of the guide rod 4 and the threaded rod 401. Multiple brush strips 403 are provided in the inner cavity of the translation plate 402. A servo motor 5 is connected to one end of the drive gear 203 and the threaded rod 401. The servo motor 5 is connected to the drive gear 203 and the threaded rod 401 through a reducer. By setting the reducer, the speed of the servo motor 5 is reduced and the torque is increased to ensure the smooth operation of the flipping plate 2. The rotating plate 2 has several nozzles 205 evenly distributed on its surface. This ensures uniform airflow across the screen surface. The rotating plate 2 surface has an anti-slip coating to prevent the screen from sliding during rotation. The brush strips 403 are wear-resistant, extending their lifespan. The gas pressure in the airflow pipe 204 is adjustable. By adjusting the opening of the one-way valve 206, the flow rate and volume of the gas ejected from the nozzles 205 are controlled to meet different cleaning needs. A drain pipe 6 is fixedly connected to the surface of the tank body 1. The drain pipe 6 has a solenoid valve inside.Opening the solenoid valve allows the wastewater generated during the cleaning process to be drained.

[0025] First, remove the screen that needs cleaning. Then, press one end of the screen against one of the clamping plates 302 to retract it. Next, pull the other clamping plate 302 so that the space between the two clamping plates 302 can accommodate the screen. At this point, release the clamping plates 302. The clamping plates 302 will automatically fix the screen under the action of the return spring 303, ensuring that the screen will not move during the flipping and cleaning process. Start the servo motor 5 corresponding to the drive gear 203. The servo motor 5 drives the main... The driving gear 203 rotates, and through meshing with the driven gear 201, the driving gear 203 transmits power to the driven gear 201. The driven gear 201 rotates, which in turn drives the tilting plate 2 to rotate. The tilting plate 2 rotates 180 degrees, causing the screen to flip from its initial position into the inner cavity of the pool body 1. After the screen enters the inner cavity of the pool body 1, cleaning water is injected into the inner cavity of the pool body 1. The servo motor 5 corresponding to the threaded rod 401 is started, causing the threaded rod 401 to drive the translation plate 402 and the brush strip 403 to reciprocate, thus cleaning the screen. The dirt and impurities on the screen surface are scrubbed. During the scrubbing process, the cleaning water and the scrubbing action work together to effectively remove the dirt and impurities from the screen surface. After cleaning, the servo motor 5 corresponding to the drive gear 203 is restarted, causing the drive gear 203 to drive the driven gear 201 to rotate 90 degrees. The driven gear 201 rotates 90 degrees, which in turn drives the tilting plate 2 and the screen to rotate 90 degrees. At this time, the cleaning water still remaining on the screen surface will drip naturally into the pool 1 due to gravity. At the same time, the air pipes are connected to the air pipes. Connect the one-way valve 206 to ensure one-way gas flow. Start the gas source so that the gas enters the airflow pipe 204 inside the tilting plate 2 through the one-way valve 206. The gas is sprayed out from the nozzle 205 through the airflow pipe 204 to dry the cleaning water still remaining on the screen surface. During the drying process, the gas flow can not only dry the water, but also further clean the small amount of dirt and impurities remaining on the screen surface. After drying, reset the tilting plate 2, and then remove the screen for use.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A papermaking screen cleaning mechanism, comprising: pool(1); The feature is that it also includes a cleaning component, a flip plate (2) is rotatably connected to the inner cavity of the pool body (1), two sets of clamping components are fixedly connected to the surface of the flip plate (2), a driven gear (201) is fixedly connected to one end of the flip plate (2), a fixed plate (202) is fixedly connected to one side of the pool body (1), a driving gear (203) is rotatably connected to the inner cavity of the fixed plate (202), an airflow pipe (204) is opened in the inner cavity of the flip plate (2), a nozzle (205) is fixedly connected to the surface of the flip plate (2), and a one-way valve (206) is fixedly connected to one side of the flip plate (2).

2. The papermaking screen cleaning mechanism according to claim 1, characterized in that: The clamping assembly includes a connecting plate (3), which is fixed to the surface of the flip plate (2). A limit rod (301) is slidably connected to the inner cavity of the connecting plate (3). A clamping plate (302) is fixedly connected to one end of the limit rod (301). A plurality of return springs (303) are provided on the opposite surface of the clamping plate (302) and the connecting plate (3).

3. The papermaking screen cleaning mechanism according to claim 1, characterized in that: The cleaning assembly includes a guide rod (4), which is fixed to the opposite side of the pool body (1). A threaded rod (401) is rotatably connected inside the pool body (1). A translation plate (402) is connected to the surfaces of the guide rod (4) and the threaded rod (401). Multiple brush strips (403) are provided in the inner cavity of the translation plate (402).

4. The papermaking screen cleaning mechanism according to claim 1, characterized in that: The drive gear (203) and the threaded rod (401) are both connected to a servo motor (5) at one end. The servo motor (5) is connected to the drive gear (203) and the threaded rod (401) through a reducer.

5. A papermaking screen cleaning mechanism according to claim 3, characterized in that: The number of nozzles (205) is several, the nozzles (205) are evenly distributed on the surface of the flip plate (2), the surface of the flip plate (2) is provided with an anti-slip coating, and the brush strip (403) is a wear-resistant brush strip.

6. The papermaking screen cleaning mechanism according to claim 1, characterized in that: The gas pressure in the airflow pipe (204) is adjustable. By adjusting the opening of the one-way valve (206) of the air pipe, the flow rate and flow of the gas ejected from the nozzle (205) can be controlled.

7. A papermaking screen cleaning mechanism according to claim 1, characterized in that: A drain pipe (6) is fixedly connected to the surface of the pool body (1), and an electromagnetic valve is installed in the inner cavity of the drain pipe (6).

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