A carton paperboard tacking device

Abstract

The utility model relates to paper product packaging production technical field, concretely is a kind of paper box paperboard laminating device, including base, the one side fixed mounting of base upper end has processing bin, the both sides of the middle of processing bin one end are uniformly fixed with supporting plate, the both sides of the middle of two supporting plates are uniformly fixed with scraper, the upper end of the both sides of the middle of two supporting plates is uniformly fixed with fixed plate, the upper end of one of fixed plate is fixed with motor, the upper end of motor and the upper end of another fixed plate are equipped with transmission gear, and the surface of two transmission gears is connected with transmission belt with transmission.

Description

Technical Field

[0001] This utility model relates to the field of paper product packaging production technology, specifically a paper box and cardboard bonding device. Background Technology

[0002] Paperboard lamination equipment is a specialized device used to automate or semi-automatically complete the bonding and positioning of paperboard layers in paperboard production. Its core function is to precisely bond multiple layers of paperboard, such as face paper, corrugated core paper, liner paper, or single sheet paperboard, with other auxiliary materials such as lining and labels to form paperboard blanks or finished products with strength, flatness, or specific functions. It is one of the key pieces of equipment in the packaging industry, especially in the production of cartons and color boxes.

[0003] Traditional equipment lacks a mechanism for handling excess glue on the sides during the initial lamination of raw paper, resulting in several shortcomings in practical use. For example, excess glue is prone to occur. After lamination, problems such as raised glue lumps on the edges of the cardboard and adhesion between the cardboard layers can easily arise, leading to poor product appearance. For products with stringent appearance requirements, such as color boxes and gift boxes, secondary manual cleaning is required, which not only increases production costs but also directly reduces production efficiency, thus presenting certain limitations. Therefore, we propose a cardboard lamination device for paper boxes. Utility Model Content

[0004] One of the technical problems this application aims to solve is that traditional equipment lacks a side glue overflow treatment mechanism when initially bonding the base paper, resulting in many shortcomings in actual use.

[0005] To address the aforementioned technical problems, this application provides a paperboard laminating device, comprising a base, a processing chamber fixedly installed on one side of the upper end of the base, support plates fixedly installed on both sides of the middle of one end of the processing chamber, scrapers fixedly installed on both sides of the middle of the two support plates, and fixing plates fixedly installed on the upper ends of both sides of the middle of the two support plates, a motor fixedly installed on the upper end of one of the fixing plates, transmission teeth provided on the upper end of the motor and the upper end of the other fixing plate, a transmission belt connecting the surfaces of the two transmission teeth, a scraper strip fixedly installed below one side of the transmission belt, an inspection port opened on one side of the upper end of the processing chamber, a cover plate rotatably installed in the middle of the inspection port via a hinge, and a pull rod fixedly installed above the middle of one end of the cover plate.

[0006] In some embodiments, unwinding rollers are rotatably mounted above and below the middle of one end of the processing chamber, and front pressure rollers are rotatably mounted above and below the middle of the other end of the processing chamber. The opening of the processing chamber with the unwinding roller end is larger than the opening of the processing chamber with the front pressure roller end, and the distance between the two front pressure rollers is smaller than the distance between the two unwinding rollers.

[0007] In some embodiments, a glue-applying roller is provided in the middle of the processing chamber, a leveling roller is provided on one side of the glue-applying roller, a glue storage tank is fixedly installed at the upper end of the middle of the processing chamber, and the glue storage tank and the glue-applying roller are connected by a glue delivery pipeline.

[0008] In some embodiments, observation windows are provided on both sides of the middle of one end of the base, and multiple transfer rollers are evenly provided at the other end of the base. A cylinder is fixedly installed above the other end of the processing chamber, and a rear pressure roller is provided at the output end of the cylinder.

[0009] In some embodiments, the two sets of scrapers are located in the middle of the leveling roller and the front pressure roller, and the spacing between the two sets of scrapers on both sides is the same as the width of the leveling roller.

[0010] In some embodiments, the output end of the motor is fixedly connected to the middle of the transmission gear, and the scraper strip abuts against the corresponding scraper blade.

[0011] This utility model has at least the following beneficial effects:

[0012] 1. This utility model ensures precise and controllable bonding quality during use, resulting in high-quality finished products. Two sets of scrapers, matched to the width of the leveling roller, precisely remove excess glue from both sides of the original paper, preventing edge protrusions and side adhesion caused by glue overflow. This ensures no glue residue on the sides of the cardboard, making it particularly suitable for products with high appearance requirements, such as color boxes and gift boxes, eliminating the need for subsequent manual edge trimming. Furthermore, a motor-driven scraper strip cleans the scrapers in real time, preventing glue clumping from affecting processing and significantly reducing downtime for cleaning.

[0013] 2. When in use, the wide-in, narrow-out gradient channel, i.e., the large opening at the unwinding end and the small spacing between the front pressure rollers, can accommodate base paper of different thicknesses, such as single-layer thin paper to multi-layer thick base paper, and is suitable for mixed batch production; the observation window facilitates real-time monitoring of the internal working condition, and the inspection port cover plate with pull rod design can be quickly opened for equipment maintenance, reducing operation and maintenance costs and ensuring continuous and stable operation of the production line. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first appearance structure of the present utility model;

[0015] Figure 2 This is a schematic diagram of the second appearance structure of the present utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the present invention.

[0017] Figure 4 This is a schematic diagram showing the connection relationship between the scraper, the leveling roller, and the coating roller of this utility model;

[0018] Figure 5This is a schematic diagram showing the positional relationship between the scraper strip and the scraper blade of this utility model.

[0019] In the diagram: 1. Base; 11. Processing chamber; 12. Glue coating roller; 13. Glue storage tank; 15. Leveling roller; 16. Unwinding roller; 17. Front pressure roller; 18. Transfer roller; 19. Cylinder; 20. Rear pressure roller; 201. Observation window; 2. Support plate; 21. Scraper; 22. Fixing plate; 23. Motor; 24. Transmission gear; 25. Transmission belt; 26. Glue scraper; 27. Inspection port; 28. Cover plate; 29. ​​Pull rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: Please refer to Figure 1 - Figure 5 This utility model provides a technical solution: a cardboard box laminating device, including a base 1, a processing chamber 11 fixedly installed on one side of the upper end of the base 1, support plates 2 fixedly installed on both sides of the middle of one end of the processing chamber 11, scrapers 21 fixedly installed on both sides of the middle of the two support plates 2, and fixing plates 22 fixedly installed on the upper ends of both sides of the middle of the two support plates 2, a motor 23 fixedly installed on the upper end of one of the fixing plates 22, and transmission teeth 24 provided on the upper end of the motor 23 and the upper end of the other fixing plate 22, the surface of the two transmission teeth 24 transmitting... A drive belt 25 is connected, and a scraper strip 26 is fixedly installed on the lower side of one side of the drive belt 25. An inspection port 27 is opened on one side of the upper end of the processing chamber 11. A cover plate 28 is rotatably installed in the middle of the inspection port 27 via a hinge. A pull rod 29 is fixedly installed on the upper part of the middle of one end of the cover plate 28. Two sets of scrapers 21 are located in the middle of the leveling roller 15 and the front pressure roller 17. The distance between the two sets of scrapers 21 on both sides is the same as the width of the leveling roller 15. The output end of the motor 23 is fixedly connected to the middle of the transmission gear 24. The scraper strip 26 abuts against the corresponding scraper 21.

[0022] In this embodiment, the potential for glue overflow on the sides of the base paper can be effectively eliminated, improving the flatness of the finished product. The two sets of scrapers 21 are precisely matched in width with the leveling roller 15 and are located between the leveling roller 15 and the front pressure roller 17. This allows for the simultaneous scraping of excess glue from both sides of the base paper after leveling and before it enters the lamination process. This prevents the base paper from contaminating the subsequent pressure rollers or seeping into the edges of the cardboard during subsequent lamination, which could lead to problems such as raised glue patches at the edges and side adhesion after multi-layer cardboard lamination. This is especially beneficial for products with high appearance requirements, such as color boxes and gift boxes, ensuring that there is no glue residue on the sides of the cardboard, eliminating the need for subsequent lamination. Manual trimming directly improves the visual texture and neatness of the finished product. The motor 23 drives the transmission belt 25 to continuously press the glue scraper 26 against the scraper blade 21, which can clean the residual glue on the surface of the scraper blade 21 in real time. This is especially effective for water-based glue, starch glue and other glues that are easy to dry and solidify, preventing the glue from clumping at the edge of the scraper blade 21 and avoiding the clumped glue from scratching the original paper or causing uneven glue application, such as local missed areas. Every once in a while, maintenance personnel can open the cover plate 28 along the hinge using the pull rod 29 to remove the obstruction of the inspection port 27, allowing users to quickly inspect the internal structure.

[0023] Example 2: Figure 1 - Figure 4 As shown, unwinding rollers 16 are rotatably installed above and below the middle of one end of the processing chamber 11, and front pressure rollers 17 are rotatably installed above and below the middle of the other end of the processing chamber 11. The opening of the processing chamber 11 with unwinding rollers 16 is larger than the opening of the processing chamber 11 with front pressure rollers 17, and the distance between the two front pressure rollers 17 is smaller than the distance between the two unwinding rollers 16. A glue-applying roller 12 is provided in the middle of the processing chamber 11, and a leveling roller 15 is provided on one side of the glue-applying roller 12. A glue storage tank 13 is fixedly installed at the upper end of the middle of the processing chamber 11. The glue storage tank 13 and the glue-applying roller 12 are connected by a glue delivery pipeline. Observation windows 201 are provided on both sides of the middle of one end of the base 1. Multiple transmission rollers 18 are evenly provided at the other end of the base 1. A cylinder 19 is fixedly installed above the other end of the processing chamber 11, and a rear pressure roller 20 is provided at the output end of the cylinder 19.

[0024] In this embodiment, the design of the unwinding end of the processing chamber 11 having an opening larger than the pressing end, and the spacing between the front pressure rollers 17 being smaller than the spacing between the unwinding rollers 16, forms a gradually changing channel with a wide inlet and a narrow outlet. The larger spacing of the unwinding rollers 16 allows for the smooth entry of base paper of different thicknesses, such as single-layer thin paper and multi-layer thick substrate, while the smaller spacing of the front pressure rollers 17 can initially compact the paperboard, reducing wrinkles or warping of the base paper and providing a flat foundation for subsequent gluing and lamination. This is especially suitable for mixed batch production with large thickness differences. The unwinding rollers 16 are responsible for the stable release of the base paper, and the gluing rollers 12 and the glue storage tank 13 are connected by pipelines to achieve precise gluing. The glue supply and leveling roller 15 correct the flatness of the glued paperboard. The front pressure roller 17 can initially press the glued paperboard to remove some air and fix its basic position. The rear pressure roller 20, driven by the cylinder 19 and working with the transfer roller 18, can perform secondary pressing on the paperboard. It can also apply greater and more stable pressure by adjusting the pressure of the cylinder 19 to ensure that the multi-layer paperboard is tightly bonded and the glue fully penetrates the fiber gaps, making the bond even tighter. The observation window 201 of the base 1 allows the operator to observe the glue application and pressing status inside the processing chamber 11 in real time and detect abnormalities in a timely manner.

[0025] Working principle:

[0026] like Figure 1 - Figure 5 As shown, during use, the base paper to be laminated, such as face paper or substrate, is stably released through the unwinding roller 16 at the unwinding end of the processing chamber 11. Utilizing a wide-in, narrow-out gradient channel design, base papers of different thicknesses, such as single-layer thin face paper or multi-layer thick substrate, can smoothly enter the processing chamber 11. The base paper passes through the coating roller 12, the leveling roller 15, and subsequently the pre-pressure roller 17 and the post-pressure roller 20. The glue tank 13 supplies a measured amount of glue to the coating roller 12 via a glue delivery pipeline, and the coating roller 12 evenly transfers the glue to the surface of the base paper. The leveling roller 15 corrects the flatness of the glued base paper to ensure uniform glue layer distribution, preparing it for subsequent lamination. The pre-pressure roller 17 initially compacts the incoming base paper, reducing wrinkles or warping and providing a flat foundation for subsequent processes.

[0027] Two sets of scrapers 21, matching the width of the leveling roller 15, are located between the leveling roller 15 and the front pressure roller 17. After the base paper has been leveled and before entering the pressing process, they simultaneously scrape off excess glue from both sides of the base paper, preventing glue overflow from contaminating the pressure roller or causing glue bulges and side adhesion after bonding, ensuring that there is no glue residue on the sides of the cardboard. At the same time, the transmission belt 25 driven by the motor 23 can continuously drive the glue scraper strip 26 to continuously contact the scraper 21, which can clean the glue residue on the surface of the scraper 21 in real time, especially for water-based glue and starch glue that are easy to dry and solidify, preventing glue clumps from scratching the base paper or causing uneven glue scraping gaps. The base paper after being scraped is first initially pressed by the front pressure roller 17 to remove some air and fix its basic position. Subsequently, the rear pressure roller 20 driven by the cylinder 19 works with the transfer roller 18 to perform secondary pressing. By adjusting the pressure of the cylinder 19, a larger and more stable pressure is applied to ensure that the multi-layer cardboard is tightly bonded, the glue fully penetrates the fiber gaps, and the bonding strength is improved.

[0028] During the process, the operator can monitor the gluing and pressing status inside the processing chamber 11 in real time through the observation window 201 of the base 1, promptly detect abnormalities and stop the machine for handling; they can also periodically open the cover 28 of the inspection port 27 through the pull rod 29 to inspect and maintain internal components such as the scraper 21, the glue scraper strip 26, and the transmission belt 25, ensuring the continuous and stable operation of the equipment.

[0029] 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 process, method, article, or apparatus.

[0030] Although embodiments of the present invention 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 the present invention.

Claims

1. A cardboard box laminating device, comprising a base (1), wherein a processing chamber (11) is fixedly installed on one side of the upper end of the base (1), characterized in that: Support plates (2) are fixedly installed on both sides of the middle of one end of the processing chamber (11). Scrapers (21) are fixedly installed on both sides of the middle of the two support plates (2). Fixing plates (22) are fixedly installed on the upper ends of both sides of the middle of the two support plates (2). A motor (23) is fixedly installed on the upper end of one of the fixing plates (22). The upper end of the motor (23) and the upper end of the other fixing plate (22) are provided with transmission teeth (24). A transmission belt (25) is connected to the surface of the two transmission teeth (24). A scraper strip (26) is fixedly installed below one side of the transmission belt (25). An inspection port (27) is opened on one side of the upper end of the processing chamber (11). A cover plate (28) is installed in the middle of the inspection port (27) by a hinge. A pull rod (29) is fixedly installed on the upper part of the middle of one end of the cover plate (28).

2. The cardboard laminating device according to claim 1, characterized in that: The processing chamber (11) has unwinding rollers (16) rotatably mounted on both the upper and lower sides of the middle of one end, and front pressure rollers (17) rotatably mounted on both the upper and lower sides of the middle of the other end. The opening of the processing chamber (11) with unwinding rollers (16) is larger than the opening of the processing chamber (11) with front pressure rollers (17). The distance between the two front pressure rollers (17) is smaller than the distance between the two unwinding rollers (16).

3. The cardboard laminating device according to claim 2, characterized in that: The processing chamber (11) is provided with a glue-applying roller (12) in the middle, and a leveling roller (15) is provided on one side of the glue-applying roller (12). A glue storage tank (13) is fixedly installed at the upper end of the middle of the processing chamber (11). The glue storage tank (13) and the glue-applying roller (12) are connected by a glue delivery pipeline.

4. The cardboard laminating device according to claim 2, characterized in that: The base (1) has observation windows (201) on both sides of the middle of one end. The other end of the base (1) is provided with multiple transmission rollers (18). A cylinder (19) is fixedly installed above the other end of the processing chamber (11). The output end of the cylinder (19) is provided with a rear pressure roller (20).

5. A cardboard box laminating device according to claim 1, characterized in that: The two sets of scrapers (21) are located in the middle of the leveling roller (15) and the front pressure roller (17), and the distance between the two sets of scrapers (21) on both sides is the same as the width of the leveling roller (15).

6. The cardboard laminating device according to claim 1, characterized in that: The output end of the motor (23) is fixedly connected to the middle of the transmission gear (24), and the scraper strip (26) abuts against the corresponding scraper (21).

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