Laminating device for forming packing box lining

The bonding device used for forming the inner lining of the packaging box utilizes a motor and cylinder to achieve uniform application of adhesive and tight bonding of paper, solving the problems of uneven adhesive application and manual pressing in traditional methods, thus improving bonding quality and management efficiency.

CN224256190UActive Publication Date: 2026-05-19GUANGDONG HUAJIA PACKAGING TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG HUAJIA PACKAGING TECH DEV CO LTD
Filing Date
2025-01-07
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the traditional packaging box lining molding process, the glue is applied unevenly and requires manual pressing, which affects the bonding effect and product quality.

Method used

A bonding device for forming the inner lining of a packaging box was designed. The device uses a motor to drive a rotating roller to apply glue evenly, and a cylinder to drive a pressure plate to press the paper and the inner lining material together. Combined with a magnetic baffle and an adjustment mechanism, the device achieves automated bonding and finished product collection.

Benefits of technology

It achieves uniform application of adhesive and tight bonding between paper and lining material, reducing manual intervention and improving bonding effect and finished product management efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of packaging box processing, in particular to a laminating device for forming a lining of a packaging box, which comprises a rack, a hopper, two rollers, a motor, an air cylinder, a pressing plate and a partition plate, the hopper is arranged on one side of the top of the rack, the two adjacent rollers are rotatably arranged on the lower side in the hopper, and the motor is mounted on one side of the outside of the hopper. An output shaft of the motor extends into the hopper and is connected with a roller of the hopper, an air cylinder with a downward driving end is installed on one side of the upper portion of the hopper, a pressing plate is arranged on a piston rod of the air cylinder, and an inclined partition plate is arranged on the rear portion in the hopper. The roller is driven by the motor to rotate, so that glue on the surface of the roller can be uniformly transferred to paper, automation of the gluing process is realized, and manual intervention is reduced; the piston rod of the air cylinder drives the pressing plate to descend, and proper pressure is applied to tightly attach the paper to the lining material.
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Description

Technical Field

[0001] This utility model relates to the field of packaging box processing, and in particular to a bonding device for forming the inner lining of packaging boxes. Background Technology

[0002] Packaging box liners are an indispensable part of product packaging. They not only protect the product but also enhance its overall image and user experience. Liners prevent damage from impacts, vibrations, or friction during transportation and handling, ensuring the product arrives at the consumer's hands intact.

[0003] In traditional equipment, glue is often applied manually or by simple mechanical means, which can easily lead to uneven application. This not only affects the bonding effect, but may also cause excessive or insufficient glue in some areas, thus affecting product quality. In addition, after the glue is applied, the bonding step usually requires manual pressing on the conveyor line.

[0004] Therefore, a special bonding device for forming the inner lining of the packaging box was designed to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the present invention provides a bonding device for forming the inner lining of a packaging box.

[0006] The technical solution is as follows: A bonding device for forming the inner lining of a packaging box includes a frame, a hopper, rollers, a motor, a cylinder, a pressure plate, a partition, a material frame, a moving plate, and an adjustment mechanism. A hopper is provided on one side of the top of the frame. Two adjacent rollers are rotatably arranged inside the lower side of the hopper. A motor is installed on one side of the outside of the hopper. The output shaft of the motor extends into the inside of the hopper and is connected to one of its rollers. A cylinder with its drive end facing downward is installed on one side of the upper part of the hopper. A pressure plate is provided on the piston rod of the cylinder. An inclined partition is provided at the rear of the hopper. A material frame is provided at the center of the top of the frame near the bottom of the partition and close to one of its rollers. Two contacting moving plates are slidably arranged on both sides of the upper part of the material frame. An adjustment mechanism is provided between the moving plates and the outside of the material frame.

[0007] Optionally, the adjustment mechanism includes a pull rod, a guide post, and an elastic element. A pull rod is provided on one side of the top of a movable plate, guide posts are symmetrically provided on one outward end of the movable plate, and an elastic element is provided outside the guide post.

[0008] Optionally, it also includes a mounting block, a gear, and a rack. A mounting block is provided on one side of the material frame, and a gear is rotatably mounted on the mounting block. A rack is slidably mounted on both sides of the gear on the outside of the material frame, and the rack meshes with the gear. The racks on both sides are respectively connected to the corresponding moving plates.

[0009] Optionally, it also includes a collection rack, which is located at the center of the bottom of the frame, corresponding to the area below the feeding frame.

[0010] Optionally, it also includes a baffle, a first magnetic block and a second magnetic block. A baffle is provided on one side of the lower part of the collection rack, and the first magnetic blocks are symmetrically arranged on both sides of the upper part of the baffle. The second magnetic blocks are arranged on both sides of the upper part of the collection rack corresponding to the first magnetic blocks. The first magnetic blocks and the second magnetic blocks are magnetically coupled.

[0011] Optionally, it also includes a U-shaped rod, a push plate, a connecting rod, and weights. Symmetrical U-shaped rods are slidably placed at the rear of the material frame. The lower part of the U-shaped rod is bent and extends into the rear of the hopper. A push plate is provided at the bottom of the bent part. The push plate slides in contact with the rear wall of the hopper and the side of the partition. A connecting rod is provided between the upper parts of the two U-shaped rods. Multiple weights are snapped onto the connecting rod.

[0012] The beneficial effects are: 1. This utility model uses a motor to drive the roller to rotate, so that the glue on the roller surface can be evenly transferred to the paper, realizing the automation of the gluing process and reducing manual intervention; the cylinder piston rod drives the pressure plate to descend, applying appropriate pressure to tightly bond the paper and the inner lining material.

[0013] 2. The collection rack of this utility model is located at the center of the bottom of the machine frame, which facilitates the centralized collection of the formed inner lining paper and simplifies the finished product management process. The magnetic blocks on the baffle and the magnetic blocks on the collection rack attract each other to ensure that the baffle is stably closed and prevent the finished product from falling accidentally. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the hopper, roller, motor, and other components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the guide column, elastic element, and mounting block of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the mounting block, gear, and rack components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the movable plate and rack of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the components of this utility model, including the collection rack, baffle, and first magnetic block.

[0020] Figure 7 This is a three-dimensional structural diagram of the components of this utility model, including the U-shaped rod, push plate, and connecting rod.

[0021] In the attached diagram, the following are the reference numerals: 1-frame, 2-hopper, 3-roller, 4-motor, 5-cylinder, 6-pressure plate, 7-partition, 8-material frame, 9-moving plate, 10-pull rod, 11-guide column, 12-elastic element, 13-mounting block, 14-gear, 15-rack, 16-collecting rack, 17-baffle, 18-first magnetic block, 19-second magnetic block, 20-U-shaped rod, 21-push plate, 22-connecting rod, 23-weight. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] Example: A bonding device for molding the inner lining of a packaging box, such as... Figures 1-7 As shown, the device includes a frame 1, a hopper 2, rollers 3, a motor 4, a cylinder 5, a pressure plate 6, a partition 7, a material frame 8, a moving plate 9, and an adjustment mechanism. The frame 1 provides the support structure for the entire device, ensuring that each component can be stably installed and operated. A hopper 2 is located on one side of the top of the frame 1. The hopper 2 contains and guides the glue and paper into the processing area. Two adjacent rollers 3 are rotatably mounted inside the lower side of the hopper 2. By rotating, the glue adhering to the surface is evenly transferred to the paper, achieving uniform glue coating on the paper. A motor 4 is installed on the outside of the hopper 2, which is the core power source for driving the rotation of the rollers 3. The output shaft of the motor 4 extends into the inside of the hopper 2 and is connected to one of its rollers 3. A cylinder 5 with its drive end facing downward is installed on the upper side of the hopper 2. A pressure plate 6 is installed on the piston rod of the cylinder 5. The telescopic movement of the pressure plate 6 can precisely adjust the pressure applied to the paper, ensuring that the paper and the inner lining material are tightly bonded and promoting the curing of the adhesive. The rear of the hopper 2 is provided with an inclined partition 7 to prevent the adhesive from flowing out directly and to guide the paper into the gap between the rollers 3 for adhesive application. The bottom of the partition 7 is located near the top of the roller 3 frame 1 and is provided with a material frame 8. Two contacting movable plates 9 are slidably arranged on both sides of the upper part of the material frame 8 to support and fix the paper after adhesive application, ensuring that it remains flat during the pressing process. The movable plates 9 and the material frame 8 are provided with adjustment mechanisms. The material frame 8 provides space to accommodate the movable plates 9 and their adjustment mechanisms, ensuring that the paper after adhesive application can be placed flat in this area without displacement, preparing for subsequent pressing operations.

[0024] like Figure 1 and Figures 3-5As shown, the adjustment mechanism includes a pull rod 10, a guide post 11, and an elastic element 12. A pull rod 10 is provided on one side of the top of a movable plate 9, and guide posts are symmetrically provided on one end of the movable plate 9. An elastic element 12 is provided on the outside of the guide post 11. The pull rod 10 allows the user to pull the movable plate 9 with external force. The guide post 11 ensures the linear movement of the movable plate 9. The elastic element 12 provides a buffering effect to prevent damage caused by sudden movement of the movable plate 9.

[0025] like Figures 3-5 As shown, it also includes a mounting block 13, a gear 14, and a rack 15. The mounting block 13 is provided on one side of the material frame 8, and the gear 14 is rotatably mounted on the mounting block 13. On the outside of the material frame 8, racks 15 are slidably mounted on both sides of the gear 14 in a staggered manner. The racks 15 mesh with the gears 14 to ensure that the moving plate 9 can slide outward smoothly and synchronously. The racks 15 on both sides are connected to the corresponding moving plates 9, thereby improving the accuracy and reliability of the movement of the moving plate 9.

[0026] like Figures 3-5 As shown, it also includes a collection rack 16. The collection rack 16 is located at the center of the bottom of the frame 1. The collection rack 16 is located below the feeding frame 8. The collection rack 16 is used to receive the formed inner lining paper along with its supporting structure.

[0027] like Figure 1 and Figure 3 As shown, it also includes a baffle 17, a first magnetic block 18, and a first magnetic block 19. A baffle 17 is provided on one side of the lower part of the collection rack 16, and the first magnetic blocks 18 are symmetrically arranged on both sides of the upper part of the baffle 17. The second magnetic blocks 19 are arranged on both sides of the upper part of the collection rack 16 corresponding to the first magnetic blocks 18. The first magnetic blocks 18 and the second magnetic blocks 19 have magnetic cooperation. The magnetic cooperation allows the baffle 17 to be closed stably. When it is necessary to take out the finished product, it can be simply opened.

[0028] like Figure 7 As shown, it also includes a U-shaped rod 20, a push plate 21, a connecting rod 22, and weights 23. Symmetrical U-shaped rods 20 are slidably placed at the rear of the material frame 8. The middle part of the U-shaped rod 20 is bent down and extends into the hopper 2. The lower part of the U-shaped rod 20 is bent down and extends into the rear of the hopper 2. A push plate 21 is provided at the bottom of the bent part. The push plate 21 slides in contact with the rear wall of the hopper 2 and the side of the partition 7. A connecting rod 22 is provided between the upper parts of the two U-shaped rods 20. Multiple weights 23 are snapped onto the connecting rod 22. The push plate 21 slides in contact with the rear wall of the hopper 2 and the side of the partition 7 to adapt to different glue volume requirements. The connecting rod 22 is used to connect the two U-shaped rods 20 to ensure that they move synchronously. The weights 23 can adjust the pushing force as needed to control the flow speed and amount of glue.

[0029] In use, fill an appropriate amount of glue into hopper 2, ensuring the glue quantity is moderate. The partition 7 prevents glue from flowing directly out of hopper 2. Simultaneously, the U-shaped rod 20 and push plate 21, under the action of weight 23, push the glue, ensuring a sufficient and even glue supply throughout the process. The glue is evenly applied as the paper is guided through the gap between the two rollers 3. Place the paper to be treated into hopper 2, and the paper slides down along the partition 7 between the two adjacent rollers 3. Start motor 4, which drives roller 3 to rotate. The glue on the surface of roller 3 is transferred to the paper surface, achieving even glue application. After gluing, the paper slides out from roller 3. At this point, the paper should be placed on two contacting moving plates 9, ensuring the paper is flat and does not shift. Start cylinder 5, and the piston rod of cylinder 5 extends downward, causing pressure plate 6 to descend. Pressure plate 6 gently presses against the paper surface. To ensure a tight bond between the paper and the inner lining material, the pressure plate 6 applies appropriate pressure for a period of time to allow the adhesive to fully penetrate and cure, ensuring a strong bond between the paper and the inner lining material. After pressing, pull the lever 10, and the moving plate 9 slides outward under external force. The elastic element 12 on the outside of the guide column 11 acts as a buffer to prevent damage caused by sudden movement of the moving plate 9. The racks 15 on both sides mesh with the gears 14 to ensure smooth movement of the moving plate 9. The formed inner lining paper, along with its supporting structure, slides into the collection rack 16 below. The magnetic blocks on the baffle 17 attract each other with the magnetic blocks on the collection rack 16, ensuring that the baffle 17 is stably closed and preventing the finished product from falling accidentally. When a certain number of finished products accumulate in the collection rack 16, the formed inner lining paper can be removed by opening the baffle 17 for further packaging or storage.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bonding device for forming the inner lining of a packaging box, characterized in that: The machine includes a frame (1), a hopper (2), a roller (3), a motor (4), a cylinder (5), a pressure plate (6), a partition (7), a material frame (8), a moving plate (9), and an adjustment mechanism. A hopper (2) is provided on one side of the top of the frame (1). Two rollers (3) are rotatably arranged on the lower side of the hopper (2). A motor (4) is installed on one side of the outside of the hopper (2). The output shaft of the motor (4) extends into the hopper (2) and is connected to one of its rollers (3). A cylinder (5) with its drive end facing down is installed on one side of the upper part of the hopper (2). A pressure plate (6) is provided on the piston rod of the cylinder (5). An inclined partition (7) is provided in the rear part of the hopper (2). The bottom end of the partition (7) is close to one of its rollers (3). A material frame (8) is provided in the middle of the top of the frame (1). Two moving plates (9) are slidably arranged on both sides of the upper part of the material frame (8). An adjustment mechanism is provided between the moving plate (9) and the outside of the material frame (8).

2. The bonding device for forming the inner lining of a packaging box according to claim 1, characterized in that: The adjustment mechanism includes a pull rod (10), a guide post (11) and an elastic element (12). A pull rod (10) is provided on one side of the top of a movable plate (9), and a guide post is symmetrically provided on one end of the movable plate (9) facing outward. An elastic element (12) is provided on the outside of the guide post (11).

3. The bonding device for forming the inner lining of a packaging box according to claim 2, characterized in that: It also includes a mounting block (13), a gear (14) and a rack (15). The mounting block (13) is provided on one side of the material frame (8). The gear (14) is rotatably mounted on the mounting block (13). The rack (15) is slidably mounted on both sides of the gear (14) on the outside of the material frame (8). The rack (15) meshes with the gear (14). The racks (15) on both sides are connected to the corresponding moving plates (9).

4. The bonding device for forming the inner lining of a packaging box according to claim 3, characterized in that: It also includes a collection rack (16), which is located at the center of the bottom of the frame (1), and the collection rack (16) corresponds to the bottom of the feeding frame (8).

5. The bonding device for forming the inner lining of a packaging box according to claim 4, characterized in that: It also includes a baffle (17), a first magnetic block (18) and a second magnetic block (19). A baffle (17) is provided on one side of the lower part of the collection rack (16). The first magnetic block (18) is symmetrically arranged on both sides of the upper part of the baffle (17). The second magnetic block (19) is arranged on both sides of the upper part of the collection rack (16) corresponding to the first magnetic block (18). The first magnetic block (18) and the second magnetic block (19) have magnetic cooperation.

6. The bonding device for forming the inner lining of a packaging box according to claim 5, characterized in that: It also includes a U-shaped rod (20), a push plate (21), a connecting rod (22) and weights (23). A symmetrical U-shaped rod (20) is slidably placed at the rear of the material frame (8). The lower part of the U-shaped rod (20) is bent and extends into the rear of the hopper (2). A push plate (21) is provided at the bottom of the bent part. The push plate (21) slides in contact with the rear wall of the hopper (2) and the side of the partition (7). A connecting rod (22) is provided between the upper parts of the two U-shaped rods (20). Multiple weights (23) are snapped onto the connecting rod (22).