Automatic gluing device for paperboard packaging boxes

By designing an automated gluing device for cardboard packaging boxes, the problems of bulging and curling edges during the cardboard gluing process were solved, enabling uniform gluing and continuous production of cardboard of different sizes, thereby improving production efficiency and equipment reliability.

CN224335193UActive Publication Date: 2026-06-09NINGXIA YUXING PACKAGING PRINTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA YUXING PACKAGING PRINTING CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing technologies are prone to bulging or curling during the glue coating process of cardboard packaging boxes, and are difficult to adapt to the uniform glue application requirements of cardboard of different sizes.

Method used

An automated gluing device for cardboard packaging boxes was designed, including a flat conveyor, a glue-applying roller, a glue-controlling mechanism, and a glue-collecting trough. The flat conveyor continuously transports cardboard, the glue-applying roller applies glue evenly, the glue-controlling mechanism controls the amount of glue, and the glue-collecting trough recovers excess glue, thus realizing automated production.

Benefits of technology

It achieves uniform glue application on cardboard, avoids glue waste and equipment contamination, adapts to the production needs of cardboard of different sizes, and forms a continuous automated production line.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of paperboard packaging box automatic gluing device, including flat plate conveyor Flat plate conveyor Install mounting frame on it, glue roller is installed on the mounting frame, glue roller side is equipped with glue control mechanism, glue pipe is arranged between glue control mechanism and glue roller, the both ends of glue roller are also provided with glue collecting groove. Limiting rod is also provided on the mounting frame, the limiting rod is located at the side of glue roller away from glue control mechanism, and abutting limiting component is installed on the limiting rod. The application can realize continuous paperboard gluing work, and the gluing uniformity is good, the equipment is reliable in operation, can cooperate with other equipment, form an automatic production line, realize continuous work, and the application can realize the gluing work of different size paperboard, when paperboard thickness is consistent, no modification is needed and can work directly.
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Description

Technical Field

[0001] This utility model relates to the field of paper box packaging technology, and in particular to an automated gluing device for cardboard packaging boxes. Background Technology

[0002] Cardboard packaging boxes are widely used in industries such as electronics, cosmetics, and gifts due to their strong rigidity and high quality. They are made of cardboard material, are environmentally friendly and lightweight, and can be customized according to customer requirements. In general, the original color of the cardboard is used directly in the packaging process, but in high-end packaging, its surface needs to have a certain aesthetic appeal.

[0003] Patterns on cardboard are typically applied using printing or lamination. Lamination, in particular, has the highest requirements. When using lamination, a uniform layer of adhesive needs to be applied to the cardboard to ensure a tight bond between the sticker and the cardboard. Incomplete application of adhesive can easily lead to bulging or curling, affecting the quality of subsequent packaging boxes. Furthermore, since production lines produce more than one type of packaging box, the gluing process must ensure compatibility across different sizes. To address these issues, we have proposed an automated gluing device for cardboard packaging boxes. Utility Model Content

[0004] This application provides an automated gluing device for cardboard packaging boxes, which solves the problem of uniform gluing of cardboard of different sizes.

[0005] This application provides an automated gluing device for cardboard packaging boxes, including a flat conveyor, a mounting frame installed on the flat conveyor, a glue-applying roller installed on the mounting frame, a glue control mechanism installed on one side of the glue-applying roller, a glue outlet pipe provided between the glue control mechanism and the glue-applying roller, and glue collection grooves provided at both ends of the glue-applying roller.

[0006] Preferably, the mounting frame is further provided with a limiting rod, which is located on the side of the adhesive roller away from the adhesive control mechanism, and an abutment limiting component is installed on the limiting rod.

[0007] Preferably, the abutment limiting component includes a bushing slidably mounted on the limiting rod, a locking screw for fixing the bushing is provided on the bushing, a limiting claw is fixed on the bushing, and the bottom of the limiting claw is located on one side of the rubber roller.

[0008] Preferably, the bottom of the limiting claw is spherical.

[0009] Preferably, it also includes a glue storage box, the glue storage box and the glue dispensing pipe are connected by a glue delivery pump, and the glue receiving trough is connected to the glue storage box by a connecting pipe.

[0010] Preferably, the adhesive control mechanism is an adhesive control roller mounted on the mounting frame.

[0011] Preferably, the mounting frame has mounting grooves on both sides, and adjusting sliders are installed in the mounting grooves. The adhesive control roller is mounted on the two adjusting sliders, and adjusting screws are rotatably connected to the adjusting sliders, with the adjusting screws extending to the upper part of the mounting frame.

[0012] Preferably, the height of the flatbed conveyor is adjustable.

[0013] Preferably, the flat conveyor is also equipped with inductive counting sensors on both sides of the rubber roller.

[0014] As can be seen from the above technical solution, this application provides an automated gluing device for cardboard packaging boxes. In use, cardboard can be placed on one side of a flat conveyor by means of a feeding structure or manual feeding. The flat conveyor feeds the cardboard to the bottom of the gluing roller. The linear speed of the gluing roller is the same as the moving speed of the flat conveyor. When the cardboard moves to the bottom of the gluing roller, the top of the cardboard contacts the gluing roller, and the glue on the gluing roller is spread evenly on the cardboard. After the cardboard passes through the bottom of the gluing roller, the entire top layer of the cardboard is covered with a layer of glue for subsequent lamination. During the operation of the gluing roller, the glue outlet pipe continuously feeds glue between the glue control mechanism and the gluing roller. The glue control mechanism spreads the glue horizontally on the gluing roller. If there is too much glue, the glue enters the glue collection trough from both ends of the gluing roller.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting up a flatbed conveyor, cardboard can be continuously transported, and in conjunction with other units, an automated production process can be achieved;

[0017] 2. With the setting of the flat conveyor and the adhesive roller, the paperboard is squeezed by the adhesive roller as it passes through the paperboard, and a layer of glue is evenly adhered to the paperboard. Because the paperboard has a certain rigidity, it will not be covered by the adhesive roller. The glue is evenly applied, which is convenient for the subsequent bonding process.

[0018] 3. Through the setting of the glue control mechanism, a uniform glue film is formed on the glue roller, which facilitates continuous glue application and ensures good glue uniformity and stable glue application process.

[0019] 4. With the glue collection trough, when there is excess glue on the glue roller, it can be collected through the glue collection trough, avoiding waste of glue and pollution of factory equipment.

[0020] In summary, this application enables continuous cardboard gluing operations with good gluing uniformity and reliable equipment operation. It can be integrated with other equipment to form an automated production line for continuous operation. Furthermore, this application can perform gluing operations on cardboard of different sizes. When the cardboard thickness is consistent, no modifications are required before starting the operation. Attached Figure Description

[0021] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an automated gluing device for cardboard packaging boxes proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the glue storage box installation structure of an automated glue application device for cardboard packaging boxes proposed in this utility model;

[0024] Figure 3 This is an enlarged view of section A of the automated gluing device for cardboard packaging boxes proposed in this utility model;

[0025] In the diagram: 1. Flat conveyor; 2. Mounting frame; 3. Adhesive control mechanism; 31. Adhesive control roller; 32. Adjusting slider; 33. Mounting groove; 34. Adjusting screw; 4. Limiting rod; 5. Adhesive distribution roller; 6. Adhesive outlet pipe; 7. Adhesive collection trough; 71. Connecting pipe; 8. Adhesive storage box; 9. Abutment limiting component; 91. Locking screw; 92. Bushing; 93. Limiting claw; 10. Inductive counting sensor. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0027] See Figure 1-3This application discloses an automated gluing device for cardboard packaging boxes. The device is used to apply glue to cardboard with a certain degree of rigidity. It includes a flat conveyor 1 for conveying the cardboard. During conveying, the entire surface of the cardboard needs to be supported; therefore, a flat conveyor 1 is used. Mounting frames 2 are installed on both sides of the flat conveyor 1. Glue-applying rollers 5 are mounted on the mounting frames 2, and each roller has a uniformly applied glue. During gluing, the cardboard passes through the bottom of the glue-applying rollers 5 via the flat conveyor 1. The glue on the rollers adheres to the cardboard, completing the gluing process. It is worth noting that the glue used in this application has high fluidity; therefore, after the cardboard is completely removed from the bottom of the glue-applying rollers 5, the cardboard... Returning to the flat conveyor 1, the device moves to the lowering stage. A glue control mechanism 3 is installed on one side of the glue-spreading roller 5 to control the glue thickness on the roller 5 and ensure that the thickness of the roller 5 remains uniform. A glue outlet pipe 6 is set between the glue control mechanism 3 and the glue-spreading roller 5 to drip glue onto the roller 5, ensuring sufficient glue between the glue control mechanism 3 and the roller 5. Since the glue in this application has high fluidity, glue collection grooves 7 are also set at both ends of the glue-spreading roller 5. When too much glue flows to both ends of the glue control mechanism 3 and the glue-spreading roller 5, the glue can drip into the glue collection grooves 7 for recycling and reuse. This also prevents glue from dripping onto the equipment and improves the reliability of the equipment operation.

[0028] In this utility model, since the glue has a certain viscosity, in order to prevent the glue from becoming sticky and affecting the operation of the equipment, a limit rod 4 is also provided on the mounting frame 2. The limit rod 4 is located on the side of the glue roller 5 away from the glue control mechanism 3. An abutment limit component 9 is installed on the limit rod 4. When the rear end of the cardboard moves and contacts the glue roller 5, since the contact between the cardboard and the glue roller 5 is a line, when the glue viscosity is high, it will lift the cardboard. At this time, the cardboard contacts the abutment limit component 9 and stops the cardboard from the glue roller 5. Since the cardboard changes from line contact to point contact with the abutment limit component 9, the cardboard falls from the abutment limit component 9 onto the flat conveyor 1 by its own weight and continues to move.

[0029] The contact limiting component 9 includes a bushing 92 slidably mounted on the limiting rod 4. The position of the bushing 92 can be adjusted on the limiting rod 4. A locking screw 91 is provided on the bushing 92 to fix the bushing 92 and fix its position. A limiting claw 93 is fixed on the bushing 92. The bottom of the limiting claw 93 is located on one side of the adhesive roller 5. During operation, the cardboard that is lifted upwards is blocked by the limiting claw 93. In order to further reduce the contact area between the limiting claw 93 and the cardboard, the bottom of the limiting claw 93 is spherical, which can also avoid damage caused by the limiting claw 93 when it contacts the cardboard.

[0030] This utility model also includes a glue storage tank 8 for storing the glue used in this application. The glue storage tank 8 and the glue dispensing pipe 6 are connected by a glue pump for glue supply. The glue collection tank 7 is further connected to the glue storage tank 8 by a connecting pipe 71, so that the glue flowing into the glue collection tank 7 flows into the glue storage tank 8 for reuse. It should be understood that the viscosity of the glue should be checked regularly. When the viscosity of the glue is too high, an appropriate solvent can be added. In this application, the viscosity of the glue is reduced by adding pure water. The glue storage tank 8 in this application has a certain stirring capacity for mixing the glue. Specifically, the stirring is carried out by installing a stirring shaft or by manual stirring.

[0031] In this utility model, the glue control mechanism 3 is a glue control roller 31 mounted on the mounting frame 2. The glue control roller 31 and the glue spreading roller 5 have a certain gap, which is used to form a glue film on the glue spreading roller 5. The glue control roller 31 can be in the form of rotation or fixed, and the rotation form is preferred.

[0032] Furthermore, mounting slots 33 are provided on both sides of the mounting frame 2. Adjusting sliders 32 are installed in the mounting slots 33. The adjusting sliders 32 can move up and down in the mounting slots 33. The glue control roller 31 is mounted on the two adjusting sliders 32. Adjusting screws 34 are rotatably connected to the adjusting sliders 32. The adjusting screws 34 extend to the upper part of the mounting frame 2. The position of the glue control roller 31 is adjusted by rotating the adjusting screws 34. Therefore, by adjusting the position of the glue control roller 31, the gap between the glue control roller 31 and the glue application roller 5 is adjusted, thereby achieving the purpose of controlling the glue layer thickness on the glue application roller 5.

[0033] In this utility model, the height of the flatbed conveyor 1 can be adjusted for different thicknesses of cardboard. This application adapts the flatbed conveyor 1 to different thicknesses of cardboard by adjusting its height. Since the flatbed conveyor 1 is a relatively common structure, this application will not elaborate on it.

[0034] In this utility model, when automated production is carried out, the flat conveyor 1 is also equipped with inductive counting sensors 10 on both sides of the rubber roller 5 to count the paperboard passing through. Two sets of inductive counting sensors 10 are installed, located on both sides of the rubber roller 5 respectively. When the difference in the count values ​​on both sides changes, feedback can be given in time to check whether there is any sticking.

[0035] As can be seen from the above technical solution, when this application is used, the cardboard can be placed on one side of the flat conveyor 1 by means of feeding structure or manual feeding. The flat conveyor 1 feeds the cardboard to the bottom of the adhesive roller 5. The linear speed of the adhesive roller 5 is the same as the moving speed of the flat conveyor 1. When the cardboard moves to the bottom of the adhesive roller 5, the top of the cardboard contacts the adhesive roller 5. The glue on the adhesive roller 5 is spread evenly on the cardboard. After the cardboard passes through the bottom of the adhesive roller 5, the entire top layer of the cardboard is covered with a layer of glue for subsequent lamination. During the operation of the adhesive roller 5, the glue outlet pipe 6 continuously feeds glue between the glue control mechanism 3 and the adhesive roller 5. The glue control mechanism 3 spreads the glue horizontally on the adhesive roller 5. If there is too much glue, the glue enters the glue collection trough 7 from both ends of the adhesive roller 5.

[0036] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0037] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. An automated gluing device for cardboard packaging boxes, comprising a flat conveyor (1), characterized in that: The flat conveyor (1) is equipped with a mounting frame (2), and a rubber roller (5) is installed on the mounting frame (2). A glue control mechanism (3) is installed on one side of the rubber roller (5). A glue outlet pipe (6) is provided between the glue control mechanism (3) and the rubber roller (5). A glue collection groove (7) is also provided at both ends of the rubber roller (5).

2. The automated gluing device for cardboard packaging boxes according to claim 1, characterized in that, The mounting bracket (2) is also provided with a limiting rod (4), which is located on the side of the adhesive roller (5) away from the adhesive control mechanism (3). The limiting rod (4) is equipped with an abutment limiting component (9).

3. The automated gluing device for cardboard packaging boxes according to claim 2, characterized in that, The contact limiting component (9) includes a bushing (92) slidably mounted on the limiting rod (4), a locking screw (91) for fixing the bushing (92) is provided on the bushing (92), and a limiting claw (93) is fixed on the bushing (92), with the bottom of the limiting claw (93) located on one side of the rubber roller (5).

4. The automated gluing device for cardboard packaging boxes according to claim 3, characterized in that, The bottom of the limiting claw (93) is spherically shaped.

5. The automated gluing device for cardboard packaging boxes according to claim 1, characterized in that, It also includes a glue storage box (8), which is connected to the glue outlet pipe (6) by a glue pump, and the glue collection tank (7) is connected to the glue storage box (8) by a connecting pipe (71).

6. The automated gluing device for cardboard packaging boxes according to claim 1, characterized in that, The adhesive control mechanism (3) is an adhesive control roller (31) mounted on the mounting frame (2).

7. The automated gluing device for cardboard packaging boxes according to claim 6, characterized in that, The mounting bracket (2) has mounting grooves (33) on both sides. An adjusting slider (32) is installed in the mounting groove (33). The glue control roller (31) is installed on the two adjusting sliders (32). An adjusting screw (34) is rotatably connected to the adjusting slider (32). The adjusting screw (34) extends to the upper part of the mounting bracket (2).

8. The automated gluing device for cardboard packaging boxes according to claim 1, characterized in that, The height of the flat conveyor (1) is adjustable.

9. The automated gluing device for cardboard packaging boxes according to claim 1, characterized in that, The flat conveyor (1) is also equipped with inductive counting sensors (10) on both sides of the cloth roller (5).