A papermaking blade coating device

By designing a paper scraping device with scrapers and rollers inside the box, the problems of glue dripping waste and large cleaning workload are solved, achieving efficient and low-waste scraping treatment, which is suitable for paper of different thicknesses.

CN224412206UActive Publication Date: 2026-06-26JILIN SHI HENGYUAN PAPER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN SHI HENGYUAN PAPER CO LTD
Filing Date
2025-08-25
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing papermaking glue scraping devices suffer from glue dripping waste and a large amount of cleaning work during the glue scraping process, and the glue scraping efficiency is low.

Method used

A paper-making glue-applying device was designed, comprising a box, a scraper, a rotating roller, and an adjustment mechanism. The rotating roller conveys the paper and applies glue inside the box. The dripping glue falls into the box, and the scraper scrapes the glue on the paper downwards and collects it inside the box. Combined with a motor and a screw adjustment mechanism, adaptive glue-applying is achieved for paper of different thicknesses.

Benefits of technology

It effectively avoids glue waste, reduces workload, and improves the efficiency and adaptability of glue application, making it suitable for glue application of paper of different thicknesses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a papermaking glue scraping device, including box body and two scrapers, the top fixedly connected with two fixed plates of box body, the middle of two fixed plates is connected with two stiles through adjusting mechanism, and the middle upside and downside of two stiles are rotatably connected with first rotating roller and second rotating roller respectively, the middle fixedly connected with first horizontal seat of two fixed plates, and the second horizontal seat is slidably arranged between two fixed plates, two scrapers are detachably connected with first horizontal seat and second horizontal seat respectively, and the glue scraping part of two scrapers is located at the bottom of scraper, and the first guide roller is rotatably connected below first horizontal seat between two fixed plates, which facilitates the sticky covering to paper, and the glue dropping on paper can drop in the inside of box body, avoids the waste of glue, simultaneously through the scraper, the glue on paper is scraped to below, and the glue drops to the inside of box body, which facilitates the utilization of glue, and reduces the workload of people.
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Description

Technical Field

[0001] This utility model relates to the field of papermaking glue application technology, and more specifically, to a papermaking glue application device. Background Technology

[0002] Papermaking refers to the process of manufacturing various types of paper. The raw materials for papermaking include wood, reeds, sugarcane bagasse, rice straw, wheat straw, cotton straw, hemp stalks, and cotton. The papermaking process requires processes such as coating, varnishing, sizing, and lamination. Sizing involves applying glue to the pulp to enhance the paper's water resistance and strength.

[0003] A search revealed that Chinese utility model patent application number CN202320973318.2 discloses a papermaking glue-applying mechanism, including a U-shaped frame, a double-sided glue-applying assembly mounted on the U-shaped frame for rapid glue application, and a pulling assembly for traction and pulling of the paperboard during the glue-applying process. The double-sided glue-applying assembly includes two symmetrically arranged scrapers mounted on the U-shaped frame, an adjusting assembly for adjusting the distance between the two scrapers, and a collection box fixed to the side of the two scrapers that is furthest from each other. In this papermaking glue-applying mechanism, the two scrapers abut against the two sides of the paperboard respectively.

[0004] During use, the two scrapers abut against the two sides of the cardboard, scraping the glue off both sides of the cardboard during the cardboard conveying process. This allows for one-time glue scraping of both sides of the cardboard, improving the efficiency of glue scraping. However, this device only scrapes the glue off the paper. People still need to apply glue to the paper on other equipment before it is conveyed to the scraping device. When the glued paper is conveyed, the glue on the paper will drip off, resulting in glue waste. In addition, the glue scraped off the paper during the downward conveying process is collected in a collection box. When there is a lot of glue in the collection box, people need to clean out the glue inside the collection box, which increases the workload. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, the present invention provides a papermaking glue scraping device to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a paper-making glue-applying device, comprising a box and two scrapers. Two fixed plates are fixedly connected to the top of the box. Two vertical plates are connected to the middle of the two fixed plates via an adjustment mechanism. A first rotating roller and a second rotating roller are rotatably connected to the upper and lower sides of the middle of the two vertical plates, respectively. A first horizontal seat is fixedly connected to the middle of the two fixed plates. A second horizontal seat is slidably disposed between the two fixed plates. The two scrapers are detachably connected to the first and second horizontal seats, respectively. The glue-applying parts of the two scrapers are located at the bottom of the scrapers. A first guide roller is rotatably connected between the two fixed plates below the first horizontal seat, facilitating the application of glue to the paper. Glue dripping from the paper falls into the interior of the box, preventing glue waste. Simultaneously, the scrapers scrape the glue on the paper downwards and allow it to drip into the interior of the box, facilitating glue utilization and reducing workload.

[0009] The present invention is further configured such that the adjusting mechanism includes a motor, each of the two fixed plates is provided with a sliding groove, each of the two vertical plates is fixedly connected with a sliding seat, the two sliding seats are respectively slidably engaged with the two sliding grooves, the motor is fixedly installed on the top of the fixed plate, the output end of the motor is fixedly connected with a first screw, the first screw is rotatably connected to the fixed plate, and the first screw is slidably engaged with the corresponding sliding seat, so as to facilitate the adjustment of the height of the first guide roller and the second guide roller.

[0010] The present invention is further configured such that a connecting plate is fixedly connected to the side ends of the two fixed plates, a second screw is threadedly connected to the connecting plate, the side end of the second screw is rotatably connected to the side end of the second cross seat, and two limiting plates are slidably arranged on the connecting plate, the side ends of the two limiting plates are fixedly connected to the side ends of the second cross seat, so as to facilitate the adjustment of the position of the scraper connected to the second cross seat.

[0011] The present invention is further configured such that a throttle handle is fixedly connected to the side end of the second screw, which facilitates the rotation of the second screw.

[0012] The present invention is further configured such that both the first and second horizontal seats are provided with convex grooves, and the side ends of the two scrapers are fixedly connected with convex seats. The two convex seats are respectively inserted into the interior of the two convex grooves. The first and second horizontal seats are both threaded with fixing screws that cooperate with the convex seats, which facilitates the disassembly and replacement of the scrapers.

[0013] The present invention is further configured such that a second guide roller is rotatably connected between the two fixed plates and above the two scrapers, which serves to guide the paper.

[0014] The present invention is further configured such that a third guide roller is rotatably connected to the upper front side between the two fixed plates, which serves to guide the paper.

[0015] The present invention is further configured such that a discharge pipe is connected to the bottom side of the box body, and a valve is installed on the discharge pipe to facilitate the discharge of glue from the inside of the box body.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a papermaking glue scraping device, which has the following beneficial effects:

[0018] 1. The paper is conveyed from the bottom inside the box via the first and second rollers. During the conveying process, the adhesive on the bottom inside the box adheres to the surface of the paper, avoiding the need for other equipment to brush the adhesive onto the paper surface. As the paper is conveyed, the adhesive drips into the inside of the box, preventing waste. At the same time, a scraper scrapes the adhesive off the paper and drips it into the inside of the box for easy utilization. Compared with existing technologies, this reduces the workload.

[0019] 2. The first screw is driven by the motor to rotate. The rotation of the first screw causes the slide, the two vertical plates, the first roller and the second roller to move up and down, so that the first roller can be adjusted to the upper side of the box, making it easier for people to pass the paper around the outside of the first roller and the second roller.

[0020] 3. Rotate the second screw, which drives the second cross seat to move. The second cross seat then drives the corresponding scraper to move, adjusting the distance between the two scrapers to facilitate scraping off the glue from paper of different thicknesses. This makes it easier to perform glue scraping treatment on paper of different thicknesses. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front structure of a papermaking glue scraping device according to the present invention;

[0022] Figure 2 This is a side view of a papermaking glue scraping device according to the present invention.

[0023] Figure 3 This is a structural diagram showing the interaction of the housing, two fixed plates, adjustment mechanism, two vertical plates, first rotating roller, and second rotating roller in this utility model.

[0024] Figure 4 This is a structural diagram showing the assembly of the housing, two fixing plates, first cross seat, second cross seat, two scrapers, connecting plate, and second screw in this utility model.

[0025] Figure 5 This is a structural diagram showing the cooperation of the first horizontal seat, the second horizontal seat, the two scrapers, the connecting plate, and the second screw in this utility model.

[0026] In the diagram: 1. Box body; 2. Scraper; 3. Fixing plate; 4. Vertical plate; 5. First rotating roller; 6. Second rotating roller; 7. First horizontal seat; 8. Second horizontal seat; 9. First guide roller; 10. Motor; 11. Slide groove; 12. Slide seat; 13. First screw; 14. Connecting plate; 15. Second screw; 16. Rotary handle; 17. Convex groove; 18. Convex seat; 19. Fixing screw; 20. Second guide roller; 21. Third guide roller; 22. Discharge pipe; 23. Valve; 24. Limiting plate. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A papermaking glue-applying device includes a housing 1 and two scrapers 2. A discharge pipe 22 is connected to the bottom side of the housing 1, and a valve 23 is installed on the discharge pipe 22 to facilitate the discharge of glue from inside the housing 1. Two fixed plates 3 are fixedly connected to the top of the housing 1. Two vertical plates 4 are connected to the middle of the two fixed plates 3 via an adjusting mechanism. A first rotating roller 5 and a second rotating roller 6 are rotatably connected to the upper and lower sides of the middle of the two vertical plates 4, respectively. A first horizontal seat 7 is fixedly connected to the middle of the two fixed plates 3, and a second horizontal seat 8 is slidably disposed between the two fixed plates 3. Two scrapers 2 are detachably connected to the first cross seat 7 and the second cross seat 8 respectively. The scraping part of the two scrapers 2 is located at the bottom of the scraper 2. The first guide roller 9 is rotatably connected between the two fixed plates 3 below the first cross seat 7 to facilitate the adhesive to be applied to the paper. The adhesive dripping from the paper will drip into the inside of the box 1. The second guide roller 20 is rotatably connected between the two fixed plates 3 above the two scrapers 2. The third guide roller 21 is rotatably connected between the upper front side of the two fixed plates 3 to guide the paper and facilitate the transfer of the paper after scraping the adhesive to other equipment.

[0031] Specifically, the paper is conveyed from the bottom inside the box 1 via the first roller 5 and the second roller 6. During the conveying process, the adhesive on the bottom inside the box 1 adheres to the surface of the paper, avoiding the need for other equipment to brush the adhesive onto the paper surface. As the paper is conveyed, the adhesive drips into the inside of the box 1, preventing waste. At the same time, the scraper 2 scrapes the adhesive on the paper downwards and drips it into the inside of the box 1, making it easier to utilize the adhesive. Compared with existing technologies, this reduces the workload.

[0032] Please see Figure 1 The adjustment mechanism includes a motor 10, two fixed plates 3 each having a slide groove 11, two vertical plates 4 each having a slide block 12 fixedly connected to them, the two slide blocks 12 slidingly engaging with the two slide grooves 11 respectively, the motor 10 being fixedly mounted on the top of the fixed plate 3, the output end of the motor 10 being fixedly connected to a first screw 13, the first screw 13 being rotatably connected to the fixed plate 3, and the first screw 13 slidingly engaging with the corresponding slide block 12, facilitating the adjustment of the height of the first guide roller 9 and the second guide roller 20.

[0033] Specifically, the motor 10 drives the first screw 13 to rotate. The rotation of the first screw 13 causes the slide block 12, the two vertical plates 4, the first roller 5 and the second roller 6 to move up and down, so that the first roller 5 can be adjusted to the upper side of the box 1, making it easier for people to pass the paper around the outside of the first roller 5 and the second roller 6.

[0034] Please see Figure 4 and Figure 5 A connecting plate 14 is fixedly connected to the side ends of the two fixed plates 3. A second screw 15 is threadedly connected to the connecting plate 14. The side end of the second screw 15 is rotatably connected to the side end of the second cross seat 8. Two limiting plates 24 are slidably arranged on the connecting plate 14. The side ends of the two limiting plates 24 are fixedly connected to the side ends of the second cross seat 8, which facilitates the adjustment of the position of the scraper 2 connected to the second cross seat 8. A throttle 16 is fixedly connected to the side end of the second screw 15, which facilitates the rotation of the second screw 15.

[0035] Specifically, rotating the second screw 15 causes the second horizontal seat 8 to move, which in turn causes the corresponding scraper 2 to move. This adjusts the distance between the two scrapers 2, making it easier to scrape off the glue from paper of different thicknesses and to perform glue scraping treatment on paper of different thicknesses.

[0036] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5The first horizontal seat 7 and the second horizontal seat 8 are both provided with convex grooves 17. The side ends of the two scrapers 2 are fixedly connected with convex seats 18. The two convex seats 18 are respectively inserted into the interior of the two convex grooves 17. The first horizontal seat 7 and the second horizontal seat 8 are both threadedly connected with fixing screws 19 that cooperate with the convex seats 18.

[0037] Specifically, by inserting the convex seat 18 into the convex groove 17 and then tightening the fixing screw 19 to fix the convex seat 18, it is easy to install the scraper 2 on the first cross seat 7 or the second cross seat 8. By loosening the fixing screw 19, the convex seat 18 can be pulled out from the convex groove 17, making it easy to disassemble the scraper 2 and thus make it easy to disassemble and replace the scraper 2.

[0038] In summary, when using the overall equipment:

[0039] The paper passes over the first roller 5 from above and under the second roller 6 and the first guide roller 9, passing between the two scrapers 2 and over the second guide roller 20. The motor 10 drives the first screw 13 to rotate counterclockwise, causing the slide 12, the two vertical plates 4, the first roller 5, and the second roller 6 to move downwards. This moves the first roller 5 to the bottom inside the housing 1, where it is located inside the adhesive. As the paper is transferred from the bottom inside the housing 1, the adhesive inside the housing 1 adheres to the paper. The adhesive is then scraped off by the two scrapers 2. The scraped paper is then transferred to other equipment via the second guide roller 20 and the third guide roller 21.

[0040] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components. For connections between two parts, welding, bolt and nut connections, bolt or screw connections, or other known connection methods can be selected according to the actual situation, which will not be elaborated here. Whenever a fixed connection is mentioned above, we should consider welding connections or connections through bolts or other structural connections. For fixed connections not specifically described in the embodiments, bolt connections are preferred if disassembly is required during use. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A papermaking scraping device, comprising a housing (1) and two scrapers (2), characterized in that: The top of the box (1) is fixedly connected to two fixed plates (3). The middle of the two fixed plates (3) is connected to two vertical plates (4) through an adjustment mechanism. The upper and lower sides of the middle of the two vertical plates (4) are respectively rotatably connected to a first rotating roller (5) and a second rotating roller (6). The middle of the two fixed plates (3) is fixedly connected to a first horizontal seat (7). The two fixed plates (3) are slidably arranged between them. The two scrapers (2) are detachably connected to the first horizontal seat (7) and the second horizontal seat (8). The scraping part of the two scrapers (2) is located at the bottom of the scraper (2). The two fixed plates (3) are rotatably connected to a first guide roller (9) located below the first horizontal seat (7).

2. The papermaking glue scraping device according to claim 1, characterized in that: The adjustment mechanism includes a motor (10), and each of the two fixed plates (3) is provided with a sliding groove (11). Each of the two vertical plates (4) is fixedly connected with a sliding seat (12). The two sliding seats (12) are slidably engaged with the two sliding grooves (11) respectively. The motor (10) is fixedly installed on the top of the fixed plate (3). The output end of the motor (10) is fixedly connected with a first screw (13). The first screw (13) is rotatably connected to the fixed plate (3). The first screw (13) is slidably engaged with the corresponding sliding seat (12).

3. The papermaking glue scraping device according to claim 1, characterized in that: A connecting plate (14) is fixedly connected to the side ends of the two fixed plates (3). A second screw (15) is threadedly connected to the connecting plate (14). The side end of the second screw (15) is rotatably connected to the side end of the second cross seat (8). Two limiting plates (24) are slidably arranged on the connecting plate (14). The side ends of the two limiting plates (24) are fixedly connected to the side ends of the second cross seat (8).

4. A papermaking glue scraping device according to claim 3, characterized in that: The second screw (15) has a throttle (16) fixedly connected to its side end.

5. A papermaking glue applicator according to claim 1, characterized in that: The first horizontal seat (7) and the second horizontal seat (8) are both provided with convex grooves (17), and the side ends of the two scrapers (2) are fixedly connected with convex seats (18). The two convex seats (18) are respectively inserted into the interior of the two convex grooves (17). The first horizontal seat (7) and the second horizontal seat (8) are both threaded with fixing screws (19) that cooperate with the convex seats (18).

6. A papermaking glue scraping device according to claim 1, characterized in that: A second guide roller (20) is rotatably connected between the two fixed plates (3) and the upper side of the two scrapers (2).

7. A papermaking glue scraping device according to claim 1, characterized in that: A third guide roller (21) is rotatably connected to the upper front side between the two fixed plates (3).

8. A papermaking glue scraping device according to claim 1, characterized in that: The bottom side of the box (1) is connected to a discharge pipe (22), and a valve (23) is installed on the discharge pipe (22).