A seam-sealing device for paper packaging box production

By flexibly adjusting the guiding mechanism and designing rolling friction, the problem of poor adaptability of traditional equipment is solved, improving the efficiency and quality of paper packaging box production and ensuring the accuracy and stability of seam binding.

CN224426693UActive Publication Date: 2026-06-30HEFEI WANGHUA COLOR PRINTING PACKAGE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI WANGHUA COLOR PRINTING PACKAGE CO LTD
Filing Date
2025-08-04
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The guiding mechanism of traditional paper packaging box production equipment cannot be adapted to packaging boxes of different sizes, resulting in low adjustment accuracy, easy deviation and wear, and affecting the quality of seam binding.

Method used

It employs two sets of guiding mechanisms, with the spacing adjusted by screw drive, combined with scale lines and pointer indication, to adapt to packaging boxes of different widths. It also converts sliding friction into rolling friction, and the inclined surface design of the guide block ensures that the packaging box enters the guiding area smoothly.

Benefits of technology

It achieves precise adaptation to packaging boxes of different sizes, reduces wear and tear, improves production efficiency and binding quality, avoids corner wrinkles, and has a simple structure and is easy to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the technical field of paper product processing equipment, and discloses a seam-binding device for paper packaging box production, including a frame, a binding mechanism, and two sets of guiding mechanisms. The frame is used to support and install the overall device. The two sets of guiding mechanisms in this application can flexibly adjust the spacing through screw drive, and with the precise indication of the scale lines and pointers, they can adapt to packaging boxes of different widths, solving the problem of poor adaptability of traditional fixed guiding mechanisms. The guide rollers on the inner side of the guide plate convert sliding friction into rolling friction, greatly reducing wear on the surface of the packaging box. The inclined surface design of the guide block ensures that the packaging box enters the guiding area smoothly, avoiding corner wrinkles. At the same time, the overall structure is relatively simple and very convenient to use, improving the practicality of the device.
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Description

Technical Field

[0001] This application relates to the technical field of paper product processing equipment, and in particular to a seam binding device for the production of paper packaging boxes. Background Technology

[0002] As a core carrier for logistics transportation and product packaging, the quality of paper packaging boxes' seam sealing directly determines the structural strength, sealing performance, and service life of the box. A strong connection at the seams ensures that the box can withstand its rated load without cracking during stacking and handling, while also preventing internal items from falling out or getting damp. With the rapid development of e-commerce logistics, the demand for paper packaging boxes is increasing annually, leading to increasingly stringent requirements for production efficiency and sealing quality. Traditional equipment often uses fixed-width guide mechanisms, which cannot adapt to packaging boxes of different sizes, requiring frequent manual adjustments with low precision. During transport, packaging boxes are prone to shifting due to vibration and friction, causing misalignment between the seams and the sealing mechanism, resulting in missing nails or glue in some areas, thus limiting their usability. Utility Model Content

[0003] To address the problems mentioned in the background art, this application provides a seam-sealing device for the production of paper packaging boxes.

[0004] The technical solution of the seam-sealing equipment for paper packaging box production provided in this application is as follows:

[0005] A seam-binding device for producing paper packaging boxes includes a frame, a binding mechanism, and two sets of guiding mechanisms;

[0006] The frame is used to support and install the overall device;

[0007] Multiple conveying rollers are rotatably mounted at equal intervals on the inner sidewall of the frame, and a drive mechanism for driving the multiple conveying rollers to rotate is provided on the frame.

[0008] Two brackets are fixedly connected to the right side of the upper surface of the frame, and the binding mechanism is set between the two brackets for binding the seams of the packaging box.

[0009] Two sets of guiding mechanisms are symmetrically arranged on the upper surface of the frame. Each guiding mechanism includes a fixed plate and a guide plate. The fixed plate is fixedly connected to the upper surface of the frame. A sliding groove is formed through the side wall of the fixed plate. A screw is rotatably installed in the sliding groove. A slider located in the sliding groove is threaded through the side wall of the screw. A connecting rod is slidably installed through the bottom of the side wall of the fixed plate. The guide plate is fixedly connected to one end of the connecting rod. The slider is connected to the connecting rod through a connecting assembly.

[0010] Each of the two guide plates has a movable groove on one side facing each other, and multiple guide rollers are rotatably installed at equal intervals inside the movable groove.

[0011] Preferably, the driving mechanism includes a drive motor and a transmission box. The drive motor is fixedly installed on one side of the frame, and the transmission box is fixedly installed on the other side of the frame. The output end of the drive motor is fixedly connected to one end of one of the conveying rollers. Adjacent conveying rollers are connected by a sprocket and a chain drive. Both the sprocket and the chain are arranged inside the transmission box.

[0012] Preferably, the connecting assembly includes a first connecting seat and a second connecting seat. The first connecting seat is fixedly connected to one side of the slider, and the second connecting seat is fixedly connected to the side wall of the connecting rod away from the guide plate. The first connecting seat and the second connecting seat are hinged together by a connecting plate.

[0013] Preferably, the top end of the screw is movably inserted through the top wall of the fixing plate and then fixedly connected to a knob.

[0014] Preferably, the side wall of the connecting rod is provided with scale lines, and a pointer that works in conjunction with the scale lines is fixedly provided on one side of the fixing plate.

[0015] Preferably, one end of each of the two guide plates is fixedly connected to a guide block, and the opposite sides of the two guide blocks are provided with inclined surfaces.

[0016] Preferably, a controller is fixedly installed on one side of one of the brackets, which is electrically connected to the drive motor and the binding mechanism respectively, so as to realize intelligent control of the equipment.

[0017] In summary, this application includes the following beneficial technical effects:

[0018] Compared to existing technologies, this device features two sets of guiding mechanisms with adjustable spacing via screw drive. Combined with precise indication from scale lines and pointers, it adapts to packaging boxes of different widths, solving the problem of poor adaptability of traditional fixed guiding mechanisms. The guide rollers on the inner side of the guide plate convert sliding friction into rolling friction, significantly reducing wear on the surface of the packaging box. The inclined surface design of the guide block ensures that the packaging box enters the guiding area smoothly, avoiding wrinkles at the edges and corners. At the same time, the overall structure is relatively simple and very convenient to use, improving the practicality of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment of the application;

[0020] Figure 2 This is a structural schematic diagram from another perspective of the application's embodiments;

[0021] Figure 3This is a schematic diagram of the guiding mechanism in the embodiment of the application.

[0022] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Controller; 3. Bracket; 4. Binding mechanism; 5. Fixing plate; 6. Slider; 7. Guide roller; 8. Guide block; 9. Conveying roller; 10. Drive motor; 11. Guide plate; 12. Transmission box; 13. Screw; 14. Knob; 15. First connecting seat; 16. Second connecting seat; 17. Connecting plate; 18. Connecting rod; 19. Scale line; 20. Pointer. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0024] This application discloses a seam-sealing device for producing paper packaging boxes. (Refer to...) Figure 1-3 A seam-binding device for producing paper packaging boxes, comprising a frame 1, a binding mechanism 4, and two sets of guiding mechanisms;

[0025] Frame 1 is used to support and install the overall device;

[0026] Multiple conveying rollers 9 are rotatably mounted at equal intervals on the inner sidewall of the frame 1. The frame 1 is provided with a drive mechanism for driving the multiple conveying rollers 9 to rotate. The drive mechanism includes a drive motor 10 and a transmission box 12. The drive motor 10 is fixedly mounted on one side of the frame 1, and the transmission box 12 is fixedly mounted on the other side of the frame 1. The output end of the drive motor 10 is fixedly connected to one end of one of the conveying rollers 9. Adjacent two conveying rollers 9 are connected by a sprocket (not shown in the figure) and a chain (not shown in the figure). Both the sprocket and the chain are set inside the transmission box 12.

[0027] Two brackets 3 are fixedly connected to the right side of the upper surface of the frame 1. The binding mechanism 4 is set between the two brackets 3 and is used to bind the seams of the packaging box.

[0028] Two sets of guiding mechanisms are symmetrically arranged on the upper surface of frame 1. Each guiding mechanism includes a fixed plate 5 and a guide plate 11. The fixed plate 5 is fixedly connected to the upper surface of frame 1. A sliding groove is formed through the side wall of the fixed plate 5, and a screw 13 is rotatably installed within the groove. A slider 6, located within the groove, is threaded through the side wall of the screw 13. A knob 14 is fixedly connected to the top of the screw 13 after it movably passes through the top wall of the fixed plate 5. A connecting rod 18 is slidably installed through the bottom of the side wall of the fixed plate 5. The guide plate 11 and the connecting rod 18 are connected by a sliding joint. The slider 6 is fixedly connected to the connecting rod 18 via a connecting assembly. The connecting assembly includes a first connecting seat 15 and a second connecting seat 16. The first connecting seat 15 is fixedly connected to one side of the slider 6. The second connecting seat 16 is fixedly connected to the side wall of the connecting rod 18 away from the guide plate 11. The first connecting seat 15 and the second connecting seat 16 are hinged together by a connecting plate 17. A scale line 19 is provided on the side wall of the connecting rod 18. A pointer 20 that works with the scale line 19 is fixedly provided on one side of the fixing plate 5.

[0029] Each of the two guide plates 11 has a movable groove on one side opposite to the other. Multiple guide rollers 7 are rotatably installed at equal intervals inside the movable groove. Each of the two guide plates 11 has a guide block 8 fixedly connected to one end. Each of the two guide blocks 8 has an inclined surface on one side opposite to the other.

[0030] One of the brackets 3 has a controller 2 fixedly installed on one side, which is electrically connected to the drive motor 10 and the binding mechanism 4 respectively, so as to realize intelligent control of the equipment.

[0031] The implementation principle of the seam-binding equipment for paper packaging box production in this application embodiment is as follows: All electrical components mentioned in this application are externally connected to a power supply and control switch during use. Before use, the guiding mechanism is adjusted according to the width of the packaging box to be processed: rotating the knob 14 drives the screw 13 to rotate within the slide groove, and the slider 6, threadedly connected to the screw 13, moves up and down along the slide groove. Through the transmission of the first connecting seat 15, the connecting plate 17, and the second connecting seat 16, the connecting rod 18 is driven to slide horizontally along the fixed plate 5, thereby adjusting the position of the guide plate 11. The scale line 19 on the connecting rod 18, in conjunction with the pointer 20, can precisely control the distance between the guide plates 11 on both sides, ensuring a match with the width of the packaging box. After starting the equipment, the drive motor 10 drives multiple conveying rollers 9 to rotate synchronously through sprockets and chains, conveying the packaging box blanks placed on the conveying rollers 9 forward. When the packaging box enters the guiding mechanism, the inclined surface of the guide block 8 guides the box smoothly between the two guide plates 11. The guide rollers 7 on the inner side of the guide plates 11 contact the surface of the packaging box and rotate with the box, providing lateral positioning and reducing friction to prevent surface scratches. When the seam of the packaging box moves below the binding mechanism 4, the binding mechanism 4 performs binding (such as nailing or gluing) to fix the seam. The controller 2 coordinates the actions of the drive motor 10 and the binding mechanism 4 to ensure that the conveying speed matches the binding rhythm, achieving continuous and stable production. The bound packaging box is conveyed to the next process by the conveyor rollers 9. The entire process requires no manual intervention, making it efficient and precise.

[0032] During this process, the spacing between the two sets of guiding mechanisms can be flexibly adjusted by the screw 13. With the precise indication of the scale line 19 and the pointer 20, it can adapt to packaging boxes of different widths, solving the problem of poor adaptability of traditional fixed guiding mechanisms. The guide roller 7 on the inner side of the guide plate 11 converts sliding friction into rolling friction, greatly reducing wear on the surface of the packaging box. The inclined surface design of the guide block 8 ensures that the packaging box enters the guiding area smoothly, avoiding wrinkles at the edges and corners. At the same time, the overall structure is relatively simple and very convenient to use, improving the practicality of the device.

[0033] Here, the thread between screw 13 and slider 6 can achieve self-locking. The self-locking condition depends on the helix angle, friction coefficient, and load. The self-locking condition can be calculated using the following formula: Self-locking condition = Friction coefficient × tan(helix angle) ≥ 1. When this condition is met, the threaded connection is self-locking. The above is all prior art. In practical applications, the corresponding self-locking angle can be set according to the friction coefficient of the material, which will not be elaborated here.

[0034] The models of electrical components involved in this application can be selected according to the actual situation, and the binding mechanism 4 is existing technology and widely used in society, so it will not be described in detail.

[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0036] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A seam-sealing device for producing paper packaging boxes, characterized in that: It includes a frame (1), a binding mechanism (4), and two sets of guiding mechanisms; The frame (1) is used to support and install the overall device; Multiple conveying rollers (9) are rotatably mounted at equal intervals on the inner sidewall of the frame (1), and a drive mechanism for driving the multiple conveying rollers (9) to rotate is provided on the frame (1). Two brackets (3) are fixedly connected to the right side of the upper surface of the frame (1), and the binding mechanism (4) is set between the two brackets (3) for binding the seams of the packaging box. Two sets of the guide mechanisms are symmetrically arranged on the upper surface of the frame (1). The guide mechanism includes a fixed plate (5) and a guide plate (11). The fixed plate (5) is fixedly connected to the upper surface of the frame (1). A sliding groove is provided through the side wall of the fixed plate (5). A screw (13) is rotatably installed in the sliding groove. A slider (6) located in the sliding groove is threaded through the side wall of the screw (13). A connecting rod (18) is slidably installed through the bottom of the side wall of the fixed plate (5). The guide plate (11) is fixedly connected to one end of the connecting rod (18). The slider (6) is connected to the connecting rod (18) through a connecting assembly. Each of the two guide plates (11) has a movable groove on one side opposite to the other, and multiple guide rollers (7) are rotatably installed at equal intervals inside the movable groove.

2. The seam-sealing equipment for paper packaging box production according to claim 1, characterized in that: The driving mechanism includes a drive motor (10) and a transmission box (12). The drive motor (10) is fixedly installed on one side of the frame (1), and the transmission box (12) is fixedly installed on the other side of the frame (1). The output end of the drive motor (10) is fixedly connected to one end of one of the conveying rollers (9). The two adjacent conveying rollers (9) are connected by a sprocket and a chain drive. The sprocket and the chain are both set in the transmission box (12).

3. The seam-sealing equipment for paper packaging box production according to claim 1, characterized in that: The connecting assembly includes a first connecting seat (15) and a second connecting seat (16). The first connecting seat (15) is fixedly connected to one side of the slider (6). The second connecting seat (16) is fixedly connected to the side wall of the connecting rod (18) away from the guide plate (11). The first connecting seat (15) and the second connecting seat (16) are hinged together by a connecting plate (17).

4. The seam-sealing equipment for paper packaging box production according to claim 1, characterized in that: The top end of the screw (13) is movably inserted through the top wall of the fixing plate (5) and then fixedly connected to a knob (14).

5. The seam-sealing equipment for paper packaging box production according to claim 1, characterized in that: The connecting rod (18) has a scale line (19) on its side wall, and the fixing plate (5) has a pointer (20) fixed on one side to cooperate with the scale line (19).

6. The seam-sealing equipment for paper packaging box production according to claim 1, characterized in that: One end of each of the two guide plates (11) is fixedly connected to a guide block (8), and an inclined surface is provided on the opposite side of each of the two guide blocks (8).

7. The seam-sealing equipment for paper packaging box production according to claim 1, characterized in that: One of the brackets (3) is fixedly equipped with a controller (2) on one side, which is electrically connected to the drive motor (10) and the binding mechanism (4) respectively, so as to realize intelligent control of the equipment.