Paperboard bonding forming mechanism

By using upper and lower gluing rollers to remove residual paper cores in paperboard production, and by utilizing gluing components and composite rollers to achieve smooth bonding of the paperboard, the problem of protrusions on the paperboard surface is solved, and the flatness of the paperboard is improved.

CN223961848UActive Publication Date: 2026-03-03GUANGDONG KAILONG PAPER CO LTD
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Patent Information

Application Number
CN202520629352.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-03
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

During the paperboard production process, residual paper scraps on the paper core surface cause bumps, affecting the flatness of the paperboard surface, which is difficult to solve effectively with existing technologies.

Method used

The upper and lower adhesive rollers contact the upper and lower end faces of the paper core respectively, and the residual paper pieces are removed by adhesive bonding. Combined with the gluing assembly, the upper and lower ends of the paper core are pre-bonded, and the composite roller is used to achieve the composite of the surface paper, paper core and bottom paper.

Benefits of technology

Ensure the cardboard surface is flat and avoid bulges to improve cardboard production quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223961848U_ABST
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Abstract

The utility model provides a paperboard bonding forming mechanism which comprises an upper bonding roller, a lower bonding roller, a gluing assembly, a composite assembly, an upper paper guide roller, a middle paper guide roller and a lower paper guide roller which are arranged on a rack, the upper paper guide roller is used for guiding surface layer paper, the middle paper guide roller is used for guiding a paper core, and the lower paper guide roller is used for guiding bottom layer paper. The upper gluing assembly is located on the feeding side of the composite assembly, the upper sticking roller and the lower sticking roller are both arranged on the feeding side of the upper gluing assembly, the lower sticking roller is used for making contact with the lower end face of a paper element, and the upper sticking roller is used for making contact with the upper end face of the paper element. The upper sticking roller and the lower sticking roller are arranged on the feeding side of the gluing assembly, the upper sticking roller and the lower sticking roller are used for carrying out dust removal and residual paper block removal treatment on the surface of a paper core, and therefore the residual paper blocks are stuck away in advance, and the situation that the flatness of a paperboard is affected due to the fact that the residual paper blocks protrude is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of cardboard, and in particular to a cardboard bonding and forming mechanism. Background Technology

[0002] In the paperboard production industry, it is usually necessary to bond and laminate the face sheet, core sheet, and base sheet together. At present, there are mature paperboard laminating equipment that can realize the automated production of paperboard. However, during the production process, it has been found that the laminated paperboard occasionally has bumps, resulting in an uneven surface of the paper block. After disassembly, it was found that the problem causing the bumps is that there are paper scraps left on the surface of the paper core. Due to the special structure of the paper core, it is difficult to ensure that the surface of the paper core is flat and free of residue. Therefore, this problem has not been solved. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned problems. We provide a cardboard bonding and forming mechanism that solves the problem of residual paper pieces on the surface of the paper core.

[0004] To achieve the above objectives, this utility model provides a cardboard bonding and forming mechanism, which includes an upper adhesive roller, a lower adhesive roller, an adhesive application assembly, a composite assembly, an upper guide roller, a middle guide roller, and a lower guide roller mounted on a frame. The upper guide roller is used to guide the surface paper, the middle guide roller is used to guide the paper core, and the lower guide roller is used to guide the bottom paper. The adhesive application assembly is located on the feeding side of the composite assembly. The upper and lower adhesive rollers are both located on the feeding side of the adhesive application assembly. The lower adhesive roller is used to contact the lower end face of the paper core, and the upper adhesive roller is used to contact the upper end face of the paper core.

[0005] In one or more embodiments, the upper adhesive roller includes a roller body and an adhesive pad layer covering the surface of the roller body, the surface of the adhesive pad layer being adhesive, and the structure of the lower adhesive roller is consistent with the structure of the upper adhesive roller.

[0006] In one or more embodiments, the gluing assembly includes a first gluing part and a second gluing part, the first gluing part being disposed above the middle guide roller and the second gluing part being disposed below the middle guide roller, the first gluing part and the second gluing part being used to apply glue to the upper and lower ends of the paper core, respectively.

[0007] In one or more embodiments, the first glue application section includes a first glue storage shell and a first glue application roller. The first glue application roller is rotatably connected to the first glue storage shell. The lower end of the first glue storage shell has an opening through which a portion of the first glue application roller can extend, and the opening is in contact with the surface of the first glue application roller.

[0008] In one or more embodiments, the second glue application section includes a second glue storage shell, a second glue application roller, a third glue application roller, and a scraper. The second and third glue application rollers are rotatably connected to the second glue storage shell. The third glue application roller is located below and in contact with the second glue application roller. A portion of the second glue application roller protrudes from the top of the second glue storage shell. The scraper is in contact with the surface of the second glue application roller.

[0009] In one or more embodiments, a glue injection port is provided on the side wall of the second glue storage shell, and the horizontal height of the glue injection port is higher than that of the third glue application roller.

[0010] In one or more embodiments, the composite component includes a first composite roller and a second composite roller distributed vertically. The second composite roller is driven to rotate by a motor. A composite area is formed between the first composite roller and the second composite roller. The first composite roller can move vertically relative to the second composite roller.

[0011] In one or more embodiments, the frame is provided with a vertical rail, a screw and a hand crank, the first composite roller is provided with a slide block that is slidably connected to the vertical rail, the bottom end of the screw is rotatably connected to the slide block, the screw is screwed to a threaded hole on the vertical rail, and the hand crank is connected to the top end of the screw.

[0012] Compared with the prior art, the advantages of this utility model are: by setting an upper and lower adhesive roller on the feeding side of the gluing assembly, the upper and lower adhesive rollers are used to clean the surface of the paper core and remove residual paper pieces, thereby removing the residual paper pieces in advance and avoiding the residual paper pieces from protruding and affecting the flatness of the paperboard. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the bonding and molding mechanism of this utility model. Detailed Implementation

[0014] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0015] See appendix Figure 1This application provides a cardboard bonding and forming mechanism, which includes an upper adhesive roller 2, a lower adhesive roller 3, an adhesive application assembly, a composite assembly, an upper guide roller 4, a middle guide roller 5, and a lower guide roller 6, all mounted on a frame 1. The upper guide roller 4 guides the top layer paper, the middle guide roller 5 guides the paper core, and the lower guide roller 6 guides the bottom layer paper. The adhesive application assembly is located on the feeding side of the composite assembly. The upper adhesive roller 2 and the lower adhesive roller 3 are both located on the feeding side of the adhesive application assembly. The lower adhesive roller 3 contacts the lower end face of the paper core, and the upper adhesive roller 2 contacts the upper end face of the paper core. By bonding the upper and lower end faces of the paper core respectively with the upper and lower adhesive rollers, residual paper pieces on the paper core can be removed, keeping the surface of the paper core flat and ensuring that the surface of the composite cardboard is flat and free of protrusions.

[0016] The upper adhesive roller 2 includes a roller body 21 and a rubber pad layer 22 covering the surface of the roller body. The surface of the rubber pad layer 22 is adhesive. The structure of the lower adhesive roller 3 is the same as that of the upper adhesive roller 2. When the adhesiveness of the rubber pad layer is exhausted, the rubber pad layer can be removed and replaced with a new adhesive layer to continue working.

[0017] The gluing assembly includes a first gluing section and a second gluing section. The first gluing section is located above the middle guide roller 5, and the second gluing section is located below the middle guide roller 5. The first gluing section and the second gluing section are used to apply glue to the upper and lower ends of the paper core, respectively. The two gluing sections can effectively apply glue to the upper and lower ends of the paper core, ensuring that the upper and lower end surfaces of the paper core have sufficient glue to bond with the face plate and the bottom plate.

[0018] The first glue application section includes a first glue storage shell 7 and a first glue application roller 8. The first glue application roller 8 is rotatably connected to the first glue storage shell 7. The lower end of the first glue storage shell 7 has an opening that allows a portion of the first glue application roller 8 to extend out. The opening contacts the surface of the first glue application roller, and the edge of the opening acts as a scraper to scrape away excess glue from the surface of the first glue application roller.

[0019] The second glue application section includes a second glue storage shell 9, a second glue application roller 10, a third glue application roller 11, and a scraper 12. The second glue application roller 10 and the third glue application roller 11 are rotatably connected to the second glue storage shell 9. The third glue application roller 11 is located below the second glue application roller 10 and in contact with the second glue application roller. A portion of the second glue application roller 10 protrudes from the top of the second glue storage shell 9. The scraper 12 is in contact with the surface of the second glue application roller 10. The third glue application roller supplies glue to the second glue application roller, and the scraper can scrape off excess glue from the surface of the second glue application roller. The scraped glue drips into the second glue storage shell under the action of gravity.

[0020] The second glue storage shell 9 has a glue injection port 13 on its side wall. The horizontal height of the glue injection port 13 is higher than that of the third glue roller 11. Since the second glue storage shell is located at the bottom, the glue injection port is set on the side of the second glue storage shell, which makes it convenient for the producer to add glue to the second glue storage shell.

[0021] The composite assembly includes a first composite roller 14 and a second composite roller 15 distributed vertically. The second composite roller 15 is driven to rotate by a motor 16. A composite area is formed between the first composite roller 14 and the second composite roller 15. The first composite roller 14 can move vertically relative to the second composite roller 15. The first composite roller and the second composite roller are used to composite the outer layer paper, the paper core and the bottom layer paper together. The first composite roller is set to be movable, and the distance between the first composite roller and the second composite roller can be adjusted according to the thickness of the paper core.

[0022] The frame 1 is provided with a vertical rail 17, a screw 18 and a hand crank 19. The first composite roller 14 is provided with a slide seat 20 that is slidably connected to the vertical rail 17. The bottom end of the screw is rotatably connected to the slide seat 20. The screw 18 is screwed to the threaded hole on the vertical rail 17. The hand crank 19 is connected to the top end of the screw 18. By cranking the hand crank, the screw is rotated, causing the first composite roller to move up and down along the vertical rail.

[0023] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A cardboard bonding and forming mechanism, characterized in that: The assembly includes an upper adhesive roller (2), a lower adhesive roller (3), an adhesive application assembly, a composite assembly, an upper guide roller (4), a middle guide roller (5), and a lower guide roller (6) mounted on a frame (1). The upper guide roller (4) is used to guide the surface paper, the middle guide roller (5) is used to guide the paper core, and the lower guide roller (6) is used to guide the bottom paper. The adhesive application assembly is located on the feeding side of the composite assembly. The upper adhesive roller (2) and the lower adhesive roller (3) are both located on the feeding side of the adhesive application assembly. The lower adhesive roller (3) is used to contact the lower end face of the paper core, and the upper adhesive roller (2) is used to contact the upper end face of the paper core.

2. The cardboard bonding and forming mechanism according to claim 1, characterized in that: The upper adhesive roller (2) includes a roller body (21) and a rubber pad layer (22) covering the surface of the roller body. The surface of the rubber pad layer (22) is adhesive. The structure of the lower adhesive roller (3) is the same as that of the upper adhesive roller (2).

3. The cardboard bonding and forming mechanism according to claim 1, characterized in that: The gluing assembly includes a first gluing part and a second gluing part. The first gluing part is located above the middle guide roller (5), and the second gluing part is located below the middle guide roller (5). The first gluing part and the second gluing part are used to apply glue to the upper and lower ends of the paper core, respectively.

4. The cardboard bonding and forming mechanism according to claim 3, characterized in that: The first glue application section includes a first glue storage shell (7) and a first glue application roller (8). The first glue application roller (8) is rotatably connected to the first glue storage shell (7). The lower end of the first glue storage shell (7) has an opening through which a part of the first glue application roller (8) can extend. The opening is in contact with the surface of the first glue application roller.

5. The cardboard bonding and forming mechanism according to claim 3, characterized in that: The second glue application section includes a second glue storage shell (9), a second glue application roller (10), a third glue application roller (11), and a scraper (12). The second glue application roller (10) and the third glue application roller (11) are rotatably connected to the second glue storage shell (9). The third glue application roller (11) is located below the second glue application roller (10) and in contact with the second glue application roller. A portion of the second glue application roller (10) protrudes from the top of the second glue storage shell (9). The scraper (12) is in contact with the surface of the second glue application roller (10).

6. The cardboard bonding and forming mechanism according to claim 5, characterized in that: The second glue storage shell (9) has a glue injection port (13) on its side wall, and the horizontal height of the glue injection port (13) is higher than that of the third glue application roller (11).

7. The cardboard bonding and forming mechanism according to claim 1, characterized in that: The composite component includes a first composite roller (14) and a second composite roller (15) distributed vertically. The second composite roller (15) is driven to rotate by a motor (16). A composite area is formed between the first composite roller (14) and the second composite roller (15). The first composite roller (14) can move vertically relative to the second composite roller (15).

8. The cardboard bonding and forming mechanism according to claim 7, characterized in that: The frame (1) is provided with a vertical rail (17), a screw (18) and a hand crank (19). The first composite roller (14) is provided with a slide (20) that is slidably connected to the vertical rail (17). The bottom end of the screw is rotatably connected to the slide (20). The screw (18) is screwed to the threaded hole on the vertical rail (17). The hand crank (19) is connected to the top end of the screw (18).