A paper machine coating device

Abstract

The utility model relates to papermaking production technical field discloses a kind of paper machine coating device, including curtain coater, the front end of curtain coater is equipped with conveying roller, the side of curtain coater is equipped with control device, the both sides of the front end of curtain coater are fixedly connected with lifting device, the output end of lifting device is fixedly connected with mounting plate, the top of mounting plate is fixedly connected with push rod cylinder by extension rod, the top of mounting plate is fixedly connected with arc plate, the top of arc plate is fixedly connected with sponge wipe.This paper machine coating device, by setting scraper, the dirt on the surface of conveying roller is scraped, then the surface of conveying roller is wiped by sponge wipe, and the cleanliness of the surface of conveying roller is further guaranteed, the amount of coating adsorbed on the surface of conveying roller is reduced, the neatness of conveying roller is guaranteed, to prevent coating reattachment, to ensure the uniformity of conveying paperboard coating.

Description

Technical Field

[0001] This utility model relates to the field of papermaking production technology, and in particular to a coating device for a papermaking machine. Background Technology

[0002] Curtain coating machines are a common type of coating equipment used in papermaking. They improve the smoothness, gloss, and printability of paper by uniformly applying coating liquid to the paper surface. The working principle of a curtain coating machine is to use a specially designed coating head to evenly distribute the coating liquid on the moving paper in a curtain-like form. This equipment is characterized by its simple structure, convenient operation, and uniform coating, and has been widely used in the papermaking industry.

[0003] When materials are coated using a curtain coating machine, the coating adheres to the material. As the material is conveyed through the conveyor rollers, the coating adsorbed on the material surface sticks to the conveyor roller surface, causing the conveyor roller surface to become dirty and have a certain amount of coating. When conveying the coated material, the coating will be adsorbed onto the material surface again, which will affect the uniformity of the coating adsorbed on the material. At the same time, the dirt generated by the conveyor rollers over a long period of use will also contaminate the conveyed material, thus affecting the quality of the finished paper. Utility Model Content

[0004] The technical problem to be solved by this invention is that the existing technology has the disadvantage of easy contamination of the conveyor rollers. To address this, we propose a paper machine coating device.

[0005] To achieve the above objectives, this application adopts the following technical solution: a paper machine coating apparatus, including a curtain coating machine, a conveying roller installed at the front end of the curtain coating machine, a control device installed on one side of the curtain coating machine, lifting devices fixedly connected to both sides of the front end of the curtain coating machine, an installation plate fixedly connected to the output end of the lifting device, a push rod roller fixedly connected to the top of the installation plate via an extension rod, an arc-shaped plate fixedly connected to the top of the installation plate, a sponge fixedly connected to the top of the arc-shaped plate, an installation shell fixedly connected to the front end of the installation plate, a scraper slidably connected inside the installation shell, a plurality of springs fixedly connected to the bottom of the scraper, and the bottom of the springs fixedly connected to the bottom of the inner wall of the installation shell.

[0006] Preferably, a collection box is placed at the front end of the curtain coating machine, and the collection box is located at the bottom center of the sponge and scraper.

[0007] Preferably, a baffle is fixedly connected to the inner wall of the collection box, and a filter screen is placed on top of the baffle.

[0008] Preferably, the surface of the arc-shaped plate has several through holes, and the mounting plate is hollow.

[0009] Preferably, both ends of the top of the mounting shell are fixedly connected to inclined plates, with one end of the inclined plate close to the surface of the scraper.

[0010] Preferably, the bottom of the scraper has a T-shaped structure, and the width of the bottom of the scraper is greater than the distance between the two inclined plates.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] In this invention, a scraper is used to remove dirt from the surface of the conveyor roller, and then a sponge is used to wipe the surface of the conveyor roller, thereby ensuring the cleanliness of the conveyor roller surface, reducing the amount of paint adsorbed on the surface of the conveyor roller, preventing the paint from re-adhering, and ensuring the uniformity of the coating on the conveyor cardboard. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is an exploded view of the main structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the internal structure of the mounting shell of this utility model.

[0016] Legend: 1. Curtain coating machine; 2. Conveyor roller; 3. Control device; 4. Lifting device; 5. Mounting plate; 6. Push rod roller; 7. Arc plate; 8. Sponge wiper; 9. Mounting shell; 10. Scraper; 11. Spring; 12. Collection box; 13. Baffle; 14. Filter screen plate; 15. Through hole; 16. Inclined plate. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0018] Reference Figure 1 - Figure 3As shown, this utility model provides a technical solution: a paper machine coating device, including a curtain coating machine 1, a conveying roller 2 installed at the front end of the curtain coating machine 1, a control device 3 installed on one side of the curtain coating machine 1, lifting devices 4 fixedly connected to both sides of the front end of the curtain coating machine 1, an installation plate 5 fixedly connected to the output end of the lifting device 4, a push rod roller 6 fixedly connected to the top of the installation plate 5 via an extension rod, an arc plate 7 fixedly connected to the top of the installation plate 5, a sponge 8 fixedly connected to the top of the arc plate 7, an installation shell 9 fixedly connected to the front end of the installation plate 5, a scraper 10 slidably connected inside the installation shell 9, and several springs 11 fixedly connected to the bottom of the scraper 10, the bottom of the springs 11 being connected to... The bottom of the inner wall of the mounting housing 9 is fixedly connected. When the conveyor roller 2 conveys the cardboard through the curtain coating machine 1, the paint will be adsorbed onto the surface of the cardboard. As the conveyor roller 2 conveys the cardboard, some paint will drip and adhere to the surface of the conveyor roller 2. At this time, the operator operates the control device 3 to start the lifting device 4, which pushes the mounting plate 5 to move the push rod roller 6 upward. The two push rod rollers 6 are placed on both sides of the conveyor roller 2, lifting the cardboard that is attached to the surface of the conveyor roller 2 upward and away from the surface of the conveyor roller 2. Then, as the lifting device 4 rises again, the scraper 10 will gradually approach the surface of the conveyor roller 2. Through the contact of the top of the scraper 10 with the conveyor roller 2, the cardboard is lifted away from the surface of the conveyor roller 2. The conveying roller 2 can rotate on its own, scraping away the dirt and paint adsorbed on the surface by the scraper 10. Simultaneously, as the lifting device 4 rises closer to the surface of the conveying roller 2, the scraper 10 presses down on the spring 11 to store force, ensuring that the scraper 10 is in close contact with the surface of the conveying roller 2. At the same time, the scraper 10 is gradually retracted into the mounting housing 9 under the pressure of the conveying roller 2. When the arc-shaped plate 7 rises with the lifting device 4, bringing the sponge 8 close to the surface of the conveying roller 2, the arc-shaped surface of the sponge 8 adheres to the surface of the conveying roller 2, wiping the surface of the conveying roller 2 along with its rotational movement. This provides a secondary cleaning of the dirt and residual paint moisture on the surface of the conveying roller 2, improving the cleaning effect. When the lifting device… 4. After reaching the highest point, operate the control device 3 to make the lifting device 4 start to descend. At this time, the scraper 10 gradually returns to its original position under the reaction force of the spring 11, preparing for the next cleaning action. At the same time, the pusher roller 6 also gradually descends, so that the cardboard that is being conveyed falls back onto the conveyor roller 2 to continue the subsequent coating work. At the same time, when the pusher roller 6 raises the conveyed cardboard, the conveyor roller 2 can be quickly cleaned without the need for manual removal of the cardboard during the operation of the curtain coating machine 1. The device cleans the dirt and coating on the surface of the conveyor roller 2, ensuring coating quality, improving production efficiency, preventing coating from re-adhering, and ensuring the uniformity of the coating on the conveyed cardboard.

[0019] Reference Figure 2As shown in this embodiment: A collection box 12 is placed at the front end of the curtain coating machine 1. The collection box 12 is placed at the bottom center of the sponge 8 and the scraper 10. The collection box 12 is placed at the bottom of the conveyor roller 2. When the dirt and water on the surface of the conveyor roller 2 are cleaned by the above structure and fall off, the collection box 12 collects the dripping waste and water, thereby avoiding the dirt generated by cleaning the conveyor roller 2 from polluting the ground. At the same time, it is convenient for workers to collect and centrally process the dirt and water.

[0020] Reference Figure 1 and Figure 2 As shown in this embodiment: a baffle 13 is fixedly connected to the inner wall of the collection box 12, and a filter screen 14 is placed on the top of the baffle 13. By placing the filter screen 14 on the top of the baffle 13, the filter screen 14 is positioned in the middle of the collection box 12, filtering the dirt and water that fall off during cleaning. The water flows downward into the bottom of the collection box 12, while the dirt is filtered and placed on the top of the filter screen 14, thereby separating and collecting the water and solid dirt. At the same time, the filter screen 14 can be removed from the top of the baffle 13 for cleaning, which is convenient and quick, and facilitates the separation and treatment of dirt generated during cleaning by the staff.

[0021] Reference Figure 2 and Figure 3 As shown in this embodiment: the surface of the arc-shaped plate 7 is provided with several through holes 15, and the mounting plate 5 is hollow. When the lifting device 4 drives the mounting plate 5 to make the arc-shaped plate 7 and the sponge 8 rise close to the surface of the conveying roller 2, after the sponge 8 wipes the surface of the conveying roller 2, the lifting device 4 rises again to make the arc-shaped plate 7 approach the conveying roller 2 again. Through the adaptation of the arc surface structure of the arc-shaped plate 7 to the circular structure of the conveying roller 2, the arc-shaped plate 7 and the conveying roller 2 form a squeezing effect on the sponge 8, thereby squeezing out the water adsorbed inside the sponge 8, and then discharging it downward through the through holes 15, and then dripping downward into the collection box 12 for collection.

[0022] Reference Figure 3 As shown in this embodiment: both ends of the top of the mounting shell 9 are fixedly connected to inclined plates 16. One end of the inclined plate 16 is close to the surface of the scraper 10. The scraper 10 is retracted into the mounting shell 9 by the downward pressure of the conveying roller 2. At the same time, the sharp point of the outward tilt of the top of the inclined plate 16 is attached to the surface of the scraper 10 to clean the surface of the scraper 10 and absorb dirt and water for scraping, thereby performing self-cleaning of the scraper 10. The inclined design of the inclined plate 16 makes it easy for the scraped dirt and water to slide off its surface, avoiding the accumulation of dirt and water on the inclined plate 16, ensuring the cleaning effect, so that the scraper 10 does not need to be cleaned frequently during daily use of the device, reducing the amount of maintenance work.

[0023] Reference Figure 3As shown in this embodiment: the bottom of the scraper 10 has a T-shaped structure, and the width of the bottom of the scraper 10 is greater than the distance between the two inclined plates 16. Through the clamping distance formed by the T-shaped structure at the bottom of the scraper 10 and the two inclined plates 16, the scraper 10 is bound inside the mounting shell 9, preventing the spring 11 from generating excessive elastic force to pop the scraper 10 out of the mounting shell 9. At the same time, the bottom of the T-shaped structure of the scraper 10 also plays a certain guiding role, making the movement of the scraper 10 inside the mounting shell 9 more stable, without shaking or deviating, so that the scraper 10 can move up and down stably inside the mounting shell 9.

[0024] Working Principle: When the conveyor roller 2 conveys the cardboard through the curtain coating machine 1, the coating material adheres to the surface of the cardboard. As the conveyor roller 2 conveys the cardboard, some coating material drips and adheres to the surface of the conveyor roller 2. At this time, the operator operates the control device 3 to start the lifting device 4, which pushes the mounting plate 5 to move the push rod roller 6 upward. The two push rod rollers 6 are placed on both sides of the conveyor roller 2, lifting the cardboard that is being conveyed and adhered to the surface of the conveyor roller 2 upward and away from the surface of the conveyor roller 2. Then, as the lifting device 4 rises again, the scraper 10 gradually approaches the surface of the conveyor roller 2. Through the adhesion of the top of the scraper 10 to the conveyor roller 2, the coating material is removed. The conveyor roller 2 rotates on its own, scraping away dirt and paint adsorbed on its surface with the scraper 10. Simultaneously, as the lifting device 4 rises closer to the surface of the conveyor roller 2, the scraper 10 presses down on the spring 11 to store force, ensuring close contact between the scraper 10 and the surface of the conveyor roller 2. At the same time, the scraper 10 is gradually retracted into the mounting housing 9 due to the pressure from the conveyor roller 2. When the arc-shaped plate 7 rises with the lifting device 4, bringing the sponge 8 close to the surface of the conveyor roller 2, the arc-shaped surface of the sponge 8 adheres to the surface of the conveyor roller 2, wiping the surface of the conveyor roller 2 along with its rotational movement, thus performing a secondary cleaning of the dirt and residual paint moisture on the surface of the conveyor roller 2. To improve cleaning efficiency, after the lifting device 4 reaches its highest point, the control device 3 is operated to lower the lifting device 4. At this time, the scraper 10 gradually returns to its original position under the reaction force of the spring 11, preparing for the next cleaning action. When the dirt and water on the surface of the conveying roller 2 are cleaned and fall off by the above structure, the dripping waste and water are collected by the collection box 12. The filter screen 14 is placed on top of the baffle 13, so that the filter screen 14 is positioned in the middle of the collection box 12, filtering the cleaned dirt and water. The water flows downward into the bottom of the collection box 12, while the dirt is filtered and placed on top of the filter screen 14, thereby separating the water and solid dirt. When the appropriate lifting device 4 drives the mounting plate 5 to raise the arc plate 7 and the sponge 8 close to the surface of the conveyor roller 2, the sponge 8 wipes the surface of the conveyor roller 2. Then, the lifting device 4 rises again to bring the arc plate 7 close to the conveyor roller 2 again. The arc surface structure of the arc plate 7 is adapted to the circular structure of the conveyor roller 2, so that the arc plate 7 and the conveyor roller 2 form a squeezing effect on the sponge 8, thereby squeezing out the water adsorbed inside the sponge 8. The conveyor roller 2 presses down on the scraper 10 and retracts it into the mounting shell 9. At the same time, the sharp point of the inclined plate 16 is inclined outward and adheres to the surface of the scraper 10, cleaning the surface of the scraper 10 and removing the dirt and water adsorbed thereon, thereby cleaning the scraper 10 itself.

[0025] 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 paper machine coating apparatus, comprising a curtain coating machine (1), characterized in that: The front end of the curtain coating machine (1) is equipped with a conveying roller (2), and a control device (3) is installed on one side of the curtain coating machine (1). Lifting devices (4) are fixedly connected to both sides of the front end of the curtain coating machine (1). The output end of the lifting device (4) is fixedly connected to a mounting plate (5). The top of the mounting plate (5) is fixedly connected to a push rod roller (6) through an extension rod. The top of the mounting plate (5) is fixedly connected to an arc plate (7). The top of the arc plate (7) is fixedly connected to a sponge (8). The front end of the mounting plate (5) is fixedly connected to a mounting shell (9). A scraper (10) is slidably connected inside the mounting shell (9). Several springs (11) are fixedly connected to the bottom of the scraper (10). The bottom of the springs (11) is fixedly connected to the bottom of the inner wall of the mounting shell (9).

2. The paper machine coating apparatus according to claim 1, characterized in that: A collection box (12) is placed at the front end of the curtain coating machine (1), and the collection box (12) is located at the bottom center of the sponge (8) and the scraper (10).

3. The paper machine coating apparatus according to claim 2, characterized in that: A baffle (13) is fixedly connected to the inner wall of the collection box (12), and a filter screen (14) is placed on the top of the baffle (13).

4. The paper machine coating apparatus according to claim 1, characterized in that: The surface of the arc plate (7) has several through holes (15), and the mounting plate (5) is hollow.

5. A paper machine coating apparatus according to claim 1, characterized in that: Both ends of the top of the mounting shell (9) are fixedly connected to inclined plates (16), one end of the inclined plate (16) being close to the surface of the scraper (10).

6. The paper machine coating apparatus according to claim 1, characterized in that: The bottom of the scraper (10) has a T-shaped structure, and the width of the bottom of the scraper (10) is greater than the distance between the two inclined plates (16).

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