Smearing structure for packaging paper
The coating structure, consisting of an electric heating plate and coating rollers, solves the problem of paper breaking due to stretching during the coating process, achieving uniform coating and drying, and improving the strength and production efficiency of the packaging paper.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-03-31
AI Technical Summary
Existing packaging paper coating devices require a winding device to assist in movement during the coating process, which reduces the strength of the packaging paper and makes it prone to breakage.
The coating structure includes an electric heating plate, a coating roller, a spraying structure, and a smoothing structure. A motor drives a threaded rod to move the lifting plate and the coating roller, which work in conjunction with the electric heating plate to dry the paper and prevent it from tearing.
It achieves uniform coating and drying of packaging paper, avoids breakage during the coating process, and improves the strength and production efficiency of packaging paper.
Smart Images

Figure CN224063178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating technology for packaging paper, specifically a coating structure for packaging paper. Background Technology
[0002] Packaging paper refers to paper used for packaging that is high in strength, low in moisture content, has low air permeability, is non-corrosive, has a certain degree of water resistance, and is also aesthetically pleasing. Paper used for food packaging also requires hygiene, sterility, and freedom from contaminants and impurities.
[0003] In the production process of packaging paper, it is necessary to apply waterproof coatings, oil-proof coatings, or pigments to the packaging paper. However, existing packaging paper coating devices require the assistance of a winding device to move the packaging paper within the coating device when applying the coating. Furthermore, after the packaging paper is soaked, its strength is reduced, making it prone to tearing due to stretching. Utility Model Content
[0004] The purpose of this invention is to provide a coating structure for packaging paper to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a coating structure for packaging paper, comprising a mounting plate: an electric heating plate is installed at the middle position of the bottom of the mounting plate; support plates are provided on both sides of the top of the mounting plate; a first threaded rod is rotatably installed at both ends inside the support plate; a first motor is provided at both ends of the top of the support plate; a lifting plate is slidably installed inside the support plate through the first threaded rod; a servo motor is installed at both ends of the lifting plate on the side away from the mounting plate; a coating roller is installed at the output end of the servo motor; a second motor is provided at the middle position of the top of the side of the lifting plate away from the mounting plate; a second threaded rod is installed at the output end of the second motor; sliding rods are provided at both ends of the top of the lifting plate on the side near the mounting plate; a spraying structure is slidably provided on the outer surface of the second threaded rod and the sliding rod; and a smoothing structure is provided at the bottom end of the lifting plate on the side near the mounting plate.
[0006] By adopting the above technical solution, the user can install the coating structure on the production line using support plates. The user then starts the first motor to drive the first threaded rod to rotate, which in turn causes the lifting plate to rise and fall on the support plates. The user then drives the coating roller to rotate slowly via the output of the servo motor, and the second threaded rod to rotate via the output of the second motor, causing the spraying structure to move back and forth between the two support plates. This allows the coating to be applied evenly to the surface of the packaging paper. Furthermore, during coating, the smoothing structure can flatten the packaging paper, preventing uneven application. After coating, the electric heating plate dries the coated packaging paper. Because the coating roller moves the packaging paper, it works in conjunction with the winding equipment to prevent the packaging paper from tearing due to pulling. The electric heating plate further prevents the packaging paper from tearing due to pulling by drying.
[0007] Preferably, threaded holes are provided at both ends of the top of the lifting plate, the size of the threaded holes on the lifting plate is adapted to the size of the first threaded rod, and the output end of the first motor is connected to the first threaded rod.
[0008] By adopting the above technical solution, the lifting plate can move on the support plate through the cooperation between the first threaded rod and the threaded hole, thereby driving the coating roller, smoothing structure and spraying structure to rise and fall.
[0009] Preferably, the support plate has connection holes at both ends on one side of the top, and a rectangular opening is provided in the middle of the top of the mounting plate. The size of the rectangular opening on the mounting plate is adapted to the size of the electric heating plate.
[0010] By adopting the above technical solution, the connecting holes on the support plate can assist in the installation of the coating structure, enabling the coating structure to be installed on the production line, while the rectangular opening on the mounting plate allows the electric heating plate to be stably and firmly installed on the mounting plate.
[0011] Preferably, the spraying structure includes a movable plate, the outer surface of the slide rod is provided with the movable plate, a liquid storage tank is installed on the top of the movable plate, a booster pump is provided at each of the four top corners of the bottom of the movable plate, a connecting block is provided at the middle position of the bottom of the movable plate, a connector is installed at the bottom of the connecting block, and multiple nozzles are equidistantly arranged at the bottom of the connector.
[0012] By adopting the above technical solution, the second threaded rod is a bidirectional threaded rod, and threads are provided on both sides of the outer surface of the second threaded rod, and the threads are reversed. The spraying structure consists of two parts, which are respectively set on both sides of the outer surface of the second threaded rod. The user starts the booster pump, which can extract the paint in the storage tank and introduce it into the connector, so that the paint can be sprayed from multiple nozzles, thereby uniformly and quickly applying the paint to the surface of the coating roller.
[0013] Preferably, both ends of one side of the movable plate are provided with sliding holes, the size of the sliding holes on the movable plate is adapted to the size of the sliding rod, and the movable plate is slidably connected to the sliding rod through the sliding holes.
[0014] By adopting the above technical solution, the cooperation between the sliding hole and the sliding rod on the moving plate enables the moving plate to move smoothly on the sliding rod.
[0015] Preferably, a threaded hole is provided on one side of the connecting block, and the connecting block is threadedly connected to the second threaded rod through the threaded hole. The liquid storage tank and the connecting part are connected through a booster pump.
[0016] By adopting the above technical solution, the fit between the threaded hole on the connecting block and the second threaded rod allows the connecting block to move on the second threaded rod, thereby driving the spraying structure to move smoothly on the second threaded rod and the slide bar.
[0017] Preferably, the smoothing structure on the lifting plate includes an elastic element, and the elastic element is provided at one end of the lifting plate near the top of the mounting plate, and a pressure roller is actively provided at the bottom of the elastic element.
[0018] By adopting the above technical solution, the smoothing structure can smooth the packaging paper. When the elastic element is squeezed, the elastic element can push the pressure roller, thereby smoothing the packaging paper.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: The coating structure of this packaging paper can be set on the production line by the support plate. Then, through the cooperation between the coating roller and the spraying structure, the coating roller can coat the packaging paper. Moreover, the coating roller is driven by the servo motor to rotate, thereby driving the packaging paper to move on the production line. In conjunction with the winding device, it can prevent the packaging paper from breaking due to excessive stretching. At the same time, an electric heating plate is provided to dry the packaging paper, further preventing the packaging paper from breaking. Attached Figure Description
[0020] Figure 1 This is the front view of the present utility model;
[0021] Figure 2 This is a sectional view of the main structure of this utility model;
[0022] Figure 3 This is a top view of the present invention;
[0023] Figure 4 This utility model Figure 2 Enlarged view of the structure at point A in the middle.
[0024] In the diagram: 1. Mounting plate; 2. Electric heating plate; 3. Support plate; 4. First threaded rod; 5. First motor; 6. Lifting plate; 7. Servo motor; 8. Spraying roller; 9. Second motor; 10. Second threaded rod; 11. Slide rod; 12. Spraying structure; 120. Moving plate; 121. Liquid storage tank; 122. Booster pump; 123. Connecting block; 124. Connecting piece; 125. Nozzle; 13. Elastic element; 14. Pressure roller. Detailed Implementation
[0025] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-4 This utility model provides an embodiment of a coating structure for packaging paper, comprising a mounting plate 1; an electric heating plate 2 is mounted at the middle of the bottom of the mounting plate 1; support plates 3 are provided on both sides of the top of the mounting plate 1; first threaded rods 4 are rotatably mounted at both ends inside the support plates 3; first motors 5 are provided at both ends of the top of the support plates 3; a lifting plate 6 is slidably mounted inside the support plates 3 via the first threaded rods 4; servo motors 7 are mounted at both ends of the lifting plate 6 on the side away from the mounting plate 1; a coating roller 8 is mounted at the output end of the servo motors 7; a second motor 9 is located at the middle of the top of the side of the lifting plate 6 away from the mounting plate 1; a second threaded rod 10 is mounted at the output end of the second motor 9; sliding rods 11 are provided at both ends of the top of the lifting plate 6 near the mounting plate 1; a spraying structure 12 is slidably provided on the outer surface of the second threaded rod 10 and the sliding rod 11; and a smoothing structure is provided at the bottom end of the lifting plate 6 near the mounting plate 1. The user applies the coating through the support plates 3. The coating structure can be installed on the production line. The user starts the first motor 5, which drives the first threaded rod 4 to rotate, thereby causing the lifting plate 6 to rise and fall on the support plate 3. Then, the user drives the coating roller 8 to rotate slowly via the output of the servo motor 7. The second threaded rod 10 is then driven to rotate via the output of the second motor 9, allowing the spraying structure 12 to move back and forth between the two support plates 3. This allows the coating to be applied evenly to the surface of the packaging paper. Furthermore, during coating, the smoothing structure can flatten the packaging paper, preventing uneven application. After coating, the electric heating plate 2 dries the coated packaging paper. Because the coating roller 8 moves the packaging paper, it works in conjunction with the winding equipment to prevent the packaging paper from breaking due to pulling. The electric heating plate 2 further prevents the packaging paper from breaking due to pulling by drying.
[0027] In this embodiment, threaded holes are provided at both ends of the top of the lifting plate 6. The size of the threaded holes on the lifting plate 6 is adapted to the size of the first threaded rod 4. The output end of the first motor 5 is connected to the first threaded rod 4. Through the cooperation between the first threaded rod 4 and the threaded holes, the lifting plate 6 can move on the support plate 3, thereby driving the coating roller 8, the smoothing structure and the spraying structure 12 to rise and fall.
[0028] In this embodiment, connection holes are provided at both ends of the top side of the support plate 3, and a rectangular opening is provided in the middle of the top of the mounting plate 1. The size of the rectangular opening on the mounting plate 1 is adapted to the size of the electric heating plate 2. The connection holes on the support plate 3 can assist in the installation of the coating structure, so that the coating structure can be installed on the production line, while the rectangular opening on the mounting plate 1 allows the electric heating plate 2 to be stably and firmly installed on the mounting plate 1.
[0029] In this embodiment, the spraying structure 12 includes a movable plate 120. The movable plate 120 is provided on the outer surface of the slide bar 11. A liquid storage tank 121 is installed on the top of the movable plate 120. A booster pump 122 is provided at each of the four top corners of the bottom of the movable plate 120. A connecting block 123 is provided at the middle position of the bottom of the movable plate 120. A connector 124 is installed at the bottom of the connecting block 123. Multiple nozzles 125 are arranged at equal intervals at the bottom of the connector 124. The second threaded rod 10 is a bidirectional threaded rod. Both sides of the outer surface of the second threaded rod 10 are provided with threads, and the threads are reversed. The spraying structure 12 consists of two parts, which are respectively provided on both sides of the outer surface of the second threaded rod 10. When the user starts the booster pump 122, the booster pump 122 can draw out the paint in the liquid storage tank 121 and introduce it into the connector 124, so that the paint can be sprayed out from the multiple nozzles 125, thereby applying the paint to the surface of the coating roller 8.
[0030] In this embodiment, sliding holes are provided at both ends of one side of the movable plate 120. The size of the sliding holes on the movable plate 120 is adapted to the size of the slide rod 11. The movable plate 120 is slidably connected to the slide rod 11 through the sliding holes. The cooperation between the sliding holes on the movable plate 120 and the slide rod 11 enables the movable plate 120 to move smoothly on the slide rod 11.
[0031] In this embodiment, a threaded hole is provided on one side of the connecting block 123. The connecting block 123 is threadedly connected to the second threaded rod 10 through the threaded hole. The liquid storage tank 121 and the connecting piece 124 are connected through the booster pump 122. The fit between the threaded hole on the connecting block 123 and the second threaded rod 10 allows the connecting block 123 to move on the second threaded rod 10, thereby driving the spraying structure 12 to move smoothly on the second threaded rod 10 and the slide bar 11.
[0032] In this embodiment, the smoothing structure on the lifting plate 6 includes an elastic element 13. The elastic element 13 is provided at one end of the lifting plate 6 near the top of the mounting plate 1. A pressure roller 14 is actively provided at the bottom of the elastic element 13. The smoothing structure can smooth the packaging paper. When the elastic element 13 is squeezed, the elastic element 13 can push the pressure roller 14, thereby smoothing the packaging paper.
[0033] Working principle: The user installs the coating structure on the production line via the support plate 3. Then, the user starts the first motor 5, which drives the first threaded rod 4 to rotate, thereby causing the lifting plate 6 to rise and fall on the support plate 3. Then, the user drives the coating roller 8 to rotate slowly via the output of the servo motor 7. The user then drives the second threaded rod 10 to rotate via the output of the second motor 9. The second threaded rod 10 is a bidirectional threaded rod, with threads on both sides of its outer surface in opposite directions. There are two spraying structures 12, which are respectively located on both sides of the outer surface of the second threaded rod 10. The user starts the booster pump 122, which extracts the coating from the storage tank 121 and introduces it into the connector 12. Within 4, the paint can be sprayed from multiple nozzles 125, thereby evenly and quickly applying the paint to the surface of the coating roller 8, and evenly applying the paint to the surface of the packaging paper. Moreover, during the coating of the packaging paper, the smoothing structure can smooth the packaging paper. When the elastic element 13 is squeezed, the elastic element 13 can push the pressure roller 14, thereby smoothing the packaging paper. After the packaging paper is coated, the coated packaging paper can be dried by the electric heating plate 2. Since the coating roller 8 can drive the packaging paper to move, it cooperates with the winding equipment to prevent the packaging paper from breaking due to pulling. Moreover, the electric heating plate 2 can dry the coated packaging paper, further preventing the packaging paper from breaking due to pulling.
[0034] For those skilled in the art, this invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or scope of this invention. Therefore, the embodiments of this invention are exemplary and not restrictive. The scope of this invention is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A coating structure for a wrapping paper comprising a mounting plate (1), characterized in that: The bottom of the mounting plate (1) is provided with an electric heating plate (2) in the middle position, both sides of the top of the mounting plate (1) are provided with a support plate (3), both ends of the inside of the support plate (3) are rotatably provided with a first threaded rod (4), both ends of the top of the support plate (3) are provided with a first motor (5), the inside of the support plate (3) is slidably provided with a lifting plate (6) through the first threaded rod (4), both ends of the side, away from the mounting plate (1), of the lifting plate (6) are provided with a servo motor (7), the output end of the servo motor (7) is provided with an application roller (8), the top of the side, away from the mounting plate (1), of the lifting plate (6) is provided with a second motor (9) in the middle position, the output end of the second motor (9) is provided with a second threaded rod (10), both ends of the top of the side, close to the mounting plate (1), of the lifting plate (6) are provided with a sliding rod (11), the outer surfaces of the second threaded rod (10) and the sliding rod (11) are slidably provided with a spraying structure (12), one end of the bottom of the side, close to the mounting plate (1), of the lifting plate (6) is provided with a smoothing structure.
2. The application according to claim 1, wherein: Both ends of the top of the lifting plate (6) are provided with threaded holes, the sizes of the threaded holes on the lifting plate (6) are adapted to the size of the first threaded rod (4), and the output end of the first motor (5) is connected with the first threaded rod (4).
3. The application according to claim 1, wherein: Both ends of one side of the top of the support plate (3) are provided with connecting holes, a rectangular opening is formed in the middle position of the top of the mounting plate (1), and the size of the rectangular opening on the mounting plate (1) is adapted to the size of the electric heating plate (2).
4. The application according to claim 1, wherein: The spraying structure (12) comprises a moving plate (120), the outer surface of the sliding rod (11) is provided with the moving plate (120), the top of the moving plate (120) is provided with a liquid storage tank (121), four top corners of the bottom of the moving plate (120) are provided with booster pumps (122), the middle position of the bottom of the moving plate (120) is provided with a connecting block (123), the bottom of the connecting block (123) is provided with a connecting piece (124), and a plurality of spray heads (125) are equidistantly arranged on the bottom of the connecting piece (124).
5. The application according to claim 4, wherein: Both ends of one side of the moving plate (120) are provided with sliding holes, the sizes of the sliding holes on the moving plate (120) are adapted to the size of the sliding rod (11), and the moving plate (120) is slidably connected with the sliding rod (11) through the sliding holes.
6. The application according to claim 5, wherein: One side of the connecting block (123) is provided with a threaded hole, the connecting block (123) is threadedly connected with the second threaded rod (10) through the threaded hole, and the liquid storage tank (121) and the connecting piece (124) are communicated through the booster pump (122).
7. The application according to claim 1, wherein: The smoothing structure on the lifting plate (6) comprises an elastic piece (13), one end of the top of the side, close to the mounting plate (1), of the lifting plate (6) is provided with the elastic piece (13), and the bottom of the elastic piece (13) is actively provided with a pressure roller (14).