Novel special paper coating device
By adopting a combination structure of coating roller, tension roller and scraper in the special paper coating device, the problems of uneven coating and coating blind spots are solved, and uniform coating and high-quality coating evenness are achieved on the surface of special paper.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-07
AI Technical Summary
Existing coating machines suffer from uneven coating and coating blind spots during the coating process of specialty paper.
A novel coating device for specialty paper was designed, which uses a gap formed by a coating roller and a tension roller to allow the specialty paper to pass through. The coating material seeps out through the seepage holes of the coating roller and is spread evenly by a scraper. The gap between the tension roller and the coating roller is adjusted by a drive structure and an elastic element to accommodate paper of different thicknesses, and the scraper maintains close contact with the paper surface.
It achieves uniform coating of the coating on the surface of specialty paper, reduces coating blind spots, and improves coating quality.
Smart Images

Figure CN224092238U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper processing equipment technology, and specifically to a novel coating device for special paper. Background Technology
[0002] After specialty paper base paper is produced by a papermaking machine, it needs to be coated with chemical coatings to give it specific functions. This coating process is mainly accomplished by a coating machine. Currently used coating machines typically use nozzles to spray coating onto the surface of a coating roller. As the specialty paper passes over the roller, the coating is applied to its surface. However, this method results in uneven coating coverage, creating coating blind spots. Utility Model Content
[0003] The purpose of this invention is to overcome the problems existing in the prior art and to provide a new coating device for special paper, which can at least partially solve the problems of the prior art.
[0004] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:
[0005] A novel coating device for specialty paper includes a base with a vertically mounted plate. Two sliding seats are vertically slidably connected to the plate, and each sliding seat is connected to a mounting seat. The two mounting seats are driven to move relative to each other by a drive structure. A coating roller is horizontally rotatably connected to the upper mounting seat. The coating roller is hollow inside, and its end face away from the mounting seat has a pipe joint communicating with an external rotary joint. The pipe joint communicates with the interior of the coating roller. The roller surface of the coating roller has multiple coating seepage holes communicating with its interior. A tensioning roller is horizontally rotatably connected to the other mounting seat. A gap for specialty paper to pass through is formed between the tensioning roller and the coating roller. A fixing plate is horizontally mounted on the plate, and a scraper is mounted on the fixing plate. The scraper is parallel to the axis of the coating roller and / or the tensioning roller, and the bottom surface of the scraper corresponds to the gap.
[0006] As a further optimization of the technical solution described above, the sliding seat is slidably connected to the upright plate by means of a mounting rail and a slider.
[0007] As a further optimization of the above-mentioned technical solution, the driving structure includes an adjusting rod that is vertically rotatably connected to the upright plate. The two ends of the adjusting rod in the length direction are respectively provided with a first threaded part and a second threaded part with opposite thread directions, and the two sliding seats are respectively threadedly fitted on the first threaded part and the second threaded part.
[0008] As a further optimization of the technical solution described above, the scraper is made of plastic material.
[0009] As a further optimization of the above-mentioned technical solution, two guide posts are vertically provided on the top surface of the scraper. The two guide posts slide vertically through the fixed plate, and a limiting block is provided at the upper end of the guide post to limit its downward movement. An elastic element is provided between the scraper and the fixed plate, and the elastic element abuts against the scraper to move downward.
[0010] As a further optimization of the above-mentioned technical solution, the elastic element is a spring, which is fitted on the guide post and its two ends in the direction of elastic force abut against the scraper and the fixing plate respectively.
[0011] The beneficial effects of this utility model are as follows: The coating is conveyed by the conveying equipment through the pipe joint to the coating roller, and then seeps out through the coating seepage hole onto the surface of the special paper. The coating is then scraped evenly onto the surface of the special paper by the scraper, which can reduce the coating blind area. A drive structure is set to drive two sliding seats to move relative to each other, thereby making the tensioning roller tension the special paper. At the same time, the gap between the tensioning roller and the coating roller can be adjusted to accommodate special paper of different thicknesses. An elastic element is set to generate elastic force on the scraper, so that the scraper can always press against the surface of the special paper, improving the coating quality of the scraper. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 for Figure 1 A side view diagram of the three-dimensional structure;
[0015] Figure 3 for Figure 1 Side view of the three-dimensional structure;
[0016] Figure 4 for Figure 1 A front view diagram of the three-dimensional structure;
[0017] The annotations in the attached figures are explained as follows:
[0018] 1-Base, 2-Second threaded part, 3-Fixing plate, 4-Vertical plate, 5-First threaded part, 6-Sliding seat, 7-Mounting seat, 8-Paint seepage hole, 9-Coating roller, 10-Limiting block, 11-Pipe joint, 12-Tension roller, 13-Spring, 14-Guide column, 15-Scraper. Detailed Implementation
[0019] To make the technical means, creative features, and achieved objectives and effects of this utility model readily understandable, the technical solutions of the embodiments of this 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 this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] Please see Figure 1-4 , Figure 1-4 A novel coating device for specialty paper is shown, comprising a base 1, on which a vertical plate 4 is vertically mounted. Two sliding seats 6 are vertically slidably connected to the vertical plate 4 via mounting rails and sliders. Each of the two sliding seats 6 is connected to a mounting base 7. The two mounting bases 7 are driven to move relative to each other by a driving structure. The driving structure includes an adjusting rod vertically rotatably connected to the vertical plate 4. The adjusting rod has a first threaded portion 5 and a second threaded portion 2 with opposite thread directions at both ends along its length. The two sliding seats 6 are respectively threaded onto the first threaded portion 5 and the second threaded portion 2. The upper mounting base 7 is horizontally rotatably connected to... A coating roller 9 is connected, the coating roller 9 is hollow inside, and a pipe joint 11 communicating with an external rotary joint is provided on the end face away from the mounting base 7. The pipe joint 11 communicates with the inside of the coating roller 9. The roller surface of the coating roller 9 is provided with a plurality of paint seepage holes 8 communicating with its inside. A tension roller 12 is horizontally rotatably connected to another mounting base 7. The tension roller 12 and the coating roller 9 form a gap for special paper to pass through. A fixing plate 3 is horizontally installed on the vertical plate 4. A scraper 15 is installed on the fixing plate 3. The scraper 15 is parallel to the axis of the coating roller 9 and / or the tension roller 12. The bottom surface of the scraper 15 corresponds to the gap.
[0021] The scraper 15 is made of plastic. Two guide posts 14 are vertically provided on the top surface of the scraper 15. The two guide posts 14 are vertically slidably connected through the fixing plate 3, and a limiting block 10 is provided at the upper end of the guide post 14 to limit its downward movement. A spring 13 is provided between the scraper 15 and the fixing plate 3. The spring 13 is fitted on the guide post 14 and its two ends in the direction of elasticity abut against the scraper 15 and the fixing plate 3 respectively. The spring 13 abuts against the scraper 15 and moves it downward.
[0022] In use, the adjusting rod is rotated, and the first and second threaded parts on the adjusting rod are screwed into the two sliding seats respectively, thereby driving the two sliding seats to move relative to each other, so that the tensioning roller tensions the surface of the special paper. At the same time, the external conveying device conveys the coating material from the pipe joint to the cavity of the coating roller, and the coating material seeps out from the coating seepage hole to the surface of the special paper, thereby coating the special paper. After coating, the surface of the special paper is pressed by the scraper, so that the scraper scrapes the coating material on the surface of the special paper evenly.
[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0024] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A novel coating device for special paper, characterized in that, The system includes a base (1) on which a vertical plate (4) is vertically mounted. Two sliding seats (6) are vertically slidably connected to the vertical plate (4). Each of the two sliding seats (6) is connected to a mounting seat (7). The two mounting seats (7) are driven to move relative to each other by a driving structure. A coating roller (9) is horizontally rotatably connected to the upper mounting seat (7). The coating roller (9) is hollow inside, and a pipe joint (11) communicating with an external rotary joint is provided on its end face away from the mounting seat (7). The pipe joint (11) communicates with the coating roller. The coating roller (9) is internally connected. The coating roller (9) has multiple paint seepage holes (8) that are internally connected to it. Another mounting base (7) is horizontally rotatably connected to a tension roller (12). The tension roller (12) and the coating roller (9) form a gap for special paper to pass through. A fixing plate (3) is horizontally installed on the vertical plate (4). A scraper (15) is installed on the fixing plate (3). The scraper (15) is parallel to the axis of the coating roller (9) and / or the tension roller (12). The bottom surface of the scraper (15) corresponds to the gap.
2. The novel coating apparatus for special paper according to claim 1, characterized in that, The sliding seat (6) is slidably connected to the upright plate (4) by means of a sliding rail and a slider.
3. The novel coating apparatus for special paper according to claim 1, characterized in that, The driving structure includes an adjusting rod that is vertically rotatably connected to the upright plate (4). The two ends of the adjusting rod along its length are respectively provided with a first threaded part (5) and a second threaded part (2) with opposite thread directions. The two sliding seats (6) are respectively threaded onto the first threaded part (5) and the second threaded part (2).
4. The novel coating apparatus for special paper according to claim 1, characterized in that, The scraper (15) is made of plastic.
5. The novel coating apparatus for special paper according to claim 1, characterized in that, The scraper (15) has two guide posts (14) vertically mounted on its top surface. The two guide posts (14) slide vertically through the fixing plate (3) and are provided with a limiting block (10) at their upper end for limiting their downward movement. An elastic element is provided between the scraper (15) and the fixing plate (3) and the elastic element pushes against the scraper (15) to move downward.
6. The novel coating apparatus for special paper according to claim 5, characterized in that, The elastic element is a spring (13), which is mounted on the guide post (14) and its two ends in the direction of elastic force abut against the scraper (15) and the fixing plate (3) respectively.