Efficient carton folding device for carton processing

Abstract

The utility model relates to the technical field of folding devices, and discloses an efficient carton folding device for carton processing, which comprises two connecting plates, supporting plates are slidably connected to two sides of the middle between the connecting plates, first springs penetrate through and are fixedly connected to two ends of each supporting plate, and sliding rods are fixedly connected to the other ends of the first springs. And guide rods are arranged on the two sides of the top of the supporting plate on one side, a connecting frame is fixedly connected to one side of the top of the connecting plate, a fixing plate is fixedly connected to one side of the inner wall of the connecting frame, and connecting rods penetrate through the two ends of one side of the bottom of the fixing plate and are rotationally connected with the two ends of one side of the bottom of the fixing plate. According to the device, through linkage among the supporting plates, the first springs, the sliding rods, the guide rods, the connecting rods, the stop rods, the telescopic rods, the second springs and the balls, the supporting plate blocks can be conveniently detached from the connecting plates, and therefore the guide rods at different angles can be rapidly replaced.

Description

Technical Field

[0001] This utility model relates to the field of folding device technology, specifically a high-efficiency cardboard box folding device for cardboard box processing. Background Technology

[0002] Folding devices are mechanical systems that enable objects to be repeatedly unfolded and folded through structures such as hinges, slides, or flexible materials. Their core feature is the ability to switch functions by changing shape within a limited space. These devices are commonly found in daily life (such as folding chairs and folding screen phones), industrial fields (such as engineering telescopic arms), and aerospace technology (such as satellite solar panels). Through precise structural design, they balance stability and portability, saving storage space while maintaining structural strength during use. Modern folding devices are developing towards lightweight materials (such as carbon fiber), intelligent drive (such as shape memory alloys), and modular structures.

[0003] High-efficiency carton folding devices are specialized equipment for automated carton production. They achieve precise folding, turning, and shaping of cardboard through mechanical transmission, pneumatic pressure, or servo drive. Combined with photoelectric sensors to ensure corner alignment, and a high-speed conveyor belt to improve processing efficiency, they can complete processes such as opening, edge folding, and bottom sealing within seconds. Their advantages include significantly reducing manual folding errors, increasing packaging line speed (up to 30 cartons per minute or more), and reducing cardboard wear through optimized structure. Widely used in e-commerce logistics, food packaging, and other fields, they are one of the core pieces of equipment in modern intelligent packaging production lines.

[0004] However, existing high-efficiency carton folding devices for carton processing often have fixed connection methods where the guide rod angle is not adjustable. This can easily lead to skewed creases and crushed corners when folding different sizes of cardboard. Furthermore, traditional devices typically use right-angle punching folding, which can easily cause cardboard cracking and excessively deep creases (especially affecting high-grammage corrugated paper). In addition, folded cartons are prone to springing back, resulting in poor adhesion and loose forming, requiring subsequent manual correction. To address these issues, a high-efficiency carton folding device for carton processing is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a high-efficiency cardboard folding device for cardboard processing, which solves the problems in the prior art of not being able to quickly adjust the angle of the guide rod and the slope of the support plate, not being able to adapt to different sizes of cardboard, and not being able to ensure that it will not spring back after folding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency cardboard box folding device for cardboard box processing, comprising two connecting plates, with support plates slidably connected to both sides of the middle of the connecting plates, and first springs passing through and fixedly connected to both ends of the support plates, with sliding rods fixedly connected to the other ends of the first springs, and the sliding rods passing through and slidably connected to the connecting plates, guide rods being provided on both sides of the top of one support plate, a connecting frame being fixedly connected to one side of the top of the connecting plate, a fixing plate being fixedly connected to one side of the inner wall of the connecting frame, connecting rods passing through and rotatably connected to both ends of the bottom of the fixing plate, a stop rod being fixedly connected to the bottom of each connecting rod, and the stop rods passing through one side of the support plate, a limit rod being fixedly connected to the middle of the bottom of the fixing plate, a bearing plate being fixedly connected to the other side of the inner wall of the fixing plate, and evenly distributed telescopic rods being fixedly connected to the bottom of the bearing plate, with second springs sleeved on the outer rings of each telescopic rod, and ball bearings provided at the bottom of each telescopic rod, and an adjustment component being provided on the other side of the top of the connecting plate.

[0007] By adopting the above technical solution, the lever designed by the linkage between the above structures automatically lifts when the cardboard is pushed in, and automatically resets by gravity after the front end is folded, thereby shortening the single folding cycle.

[0008] As a further description of the above technical solution: the adjustment component includes a support frame, which is fixedly connected to the other side of the top of the connecting plate, and a transmission rod is rotatably connected to one end of the support frame.

[0009] By adopting the above technical solution, the installed support frame can support the required transmission rod, thereby driving the required components and structures to rotate.

[0010] As a further description of the above technical solution: one end of the transmission rod is fixedly connected to a worm gear, and the other end of the transmission rod is fixedly connected to a rocker arm.

[0011] By adopting the above technical solution, the installed rocker arm allows the transmission rod to rotate within the load-bearing frame, thereby driving the worm gear to rotate.

[0012] As a further description of the above technical solution: a threaded rod is rotatably connected through the bottom of the bearing frame, and a worm gear is fixedly connected to the top of the threaded rod, and the worm gear is meshed with the worm.

[0013] By adopting the above technical solution, the installed worm gear can be driven by the worm, thereby driving the threaded rod to rotate within the bearing frame.

[0014] As a further description of the above technical solution: the outer ring of the threaded rod is threaded with a nut pair, and the nut pair is slidably connected to the bearing frame through it.

[0015] By adopting the above technical solution, the installed nut pair 24 can be driven by the threaded rod, thereby sliding within the bearing frame and compressing the damping spring.

[0016] As a further description of the above technical solution: both ends of the top of the nut assembly are connected to a fixed rod that is slidably connected, and the fixed rod is fixedly connected to the bearing frame. The bottom of the outer ring of the fixed rod is connected to a slider that is slidably connected, and the slider is slidably connected to the bearing frame.

[0017] By adopting the above technical solution, the fixed rod installed allows the slider to slide within the bearing frame, thereby driving the pressure roller to move.

[0018] As a further description of the above technical solution: a servo motor is fixedly connected to one end of the slider, the output end of the servo motor passes through the slider and is fixedly connected to a pressure roller, and the pressure roller is rotatably connected to the bearing frame, and a damping spring is sleeved in the middle of the outer ring of the fixed rod.

[0019] By adopting the above technical solution, the damping spring can prevent the threaded rod from contacting the pressure roller, thereby avoiding collision.

[0020] As a further description of the above technical solution: a second conveyor belt is provided between the support plates, a first conveyor belt is provided on one side between the connecting plates, and a third conveyor belt is provided on the other side between the connecting plates.

[0021] By adopting the above technical solution, the cardboard can be folded during transportation using multiple conveyor belts, thereby improving processing efficiency.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This utility model provides a high-efficiency cardboard folding device for cardboard box processing. Firstly, through the linkage between the support plate, the first spring, the slide rod, the guide rod, the connecting rod, the stop rod, the telescopic rod, the second spring, and the ball bearing, the support plate can be easily disassembled from the connecting plate, thereby quickly replacing the guide rod at different angles. This also avoids the problem of cardboard damage or uneven creases caused by rapid folding. At the same time, it can perform preliminary compression on the folded cardboard, thereby improving the forming quality of the cardboard box.

[0024] This utility model provides a high-efficiency carton folding device for carton processing. Through the linkage between the transmission rod, worm, threaded rod, worm wheel, nut pair, fixed rod, damping spring and slider, the pressure of the pressure roller can be automatically adjusted according to the thickness and hardness of the cardboard, ensuring that a suitable squeezing effect can be obtained under different conditions, improving the adaptability and flexibility of the equipment. Furthermore, the rebound ability of the damping spring can be precisely adjusted, thereby accurately controlling the downward pressure of the pressure roller and ensuring the forming quality of the carton. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a cross-sectional view of the present invention;

[0027] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the adjustment component of this utility model.

[0029] Legend:

[0030] 1. Connecting plate; 2. First conveyor belt; 3. Support plate; 4. First spring; 5. Slide rod; 6. Guide rod; 7. Connecting frame; 8. Fixing plate; 9. Connecting rod; 10. Stop bar; 11. Limiting rod; 12. Bearing plate; 13. Telescopic rod; 14. Second spring; 15. Ball bearing; 16. Second conveyor belt; 17. Third conveyor belt; 18. Bearing frame; 19. Transmission rod; 20. Worm gear; 21. Rocker arm; 22. Threaded rod; 23. Worm wheel; 24. Nut pair; 25. Fixing rod; 26. Damping spring; 27. Slider; 28. Servo motor; 29. ​​Pressure roller. Detailed Implementation

[0031] 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.

[0032] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0033] Reference Figure 1 , Figure 2 and Figure 4This utility model discloses a high-efficiency cardboard folding device for cardboard box processing, comprising two connecting plates 1. A connecting frame 7 is fixedly connected to one side of the top of the connecting plate 1, which can support the required components and structures. A fixing plate 8 is fixedly connected to one side of the inner wall of the connecting frame 7, which allows the connecting rod 9 to rotate within it. A limit rod 11 is fixedly connected to the middle of the bottom of the fixing plate 8, which can prevent displacement of the cardboard during folding. A bearing plate 12 is fixedly connected to the other side of the inner wall of the fixing plate 8, which can connect and fix the required telescopic rod 13. An adjusting component includes a bearing frame 18, which is fixedly connected to the other side of the top of the connecting plate 1, and can support and limit the required components and structures. The other end of the transmission rod 19 is fixedly connected to... A rocker arm 21 is installed, which allows the transmission rod 19 to rotate within the support frame 18. A second conveyor belt 16 is installed between the support plates 3, a first conveyor belt 2 is installed on one side between the connecting plates 1, and a third conveyor belt 17 is installed on the other side between the connecting plates 1. The multiple conveyor belts can transport the cardboard to be processed. An adjustment component is installed on the other side of the top of the connecting plate 1. A servo motor 28 is fixedly connected to one end of a slider 27. The servo motor 28 allows the pressure roller 29 to rotate between the sliders 27. The output end of the servo motor 28 passes through the slider 27 and is fixedly connected to the pressure roller 29. The pressure roller 29 is rotatably connected to the support frame 18. The installed pressure roller 29 can squeeze the folded pressure roller 29, thereby ensuring that the folding and forming of the carton is more regular and improving the overall quality of the carton.

[0034] Reference Figure 2 and Figure 3Support plates 3 are slidably connected to both sides of the middle of the connecting plates 1. First springs 4 are fixedly connected to both ends of the support plates 3, and sliding rods 5 are fixedly connected to the other ends of the first springs 4. The sliding rods 5 are slidably connected to the connecting plates 1. Guide rods 6 are provided on both sides of the top of one side of the support plate 3. By allowing the sliding rods 5 to slide into the support plate 3, the first springs 4 are compressed, causing the support plate 3 to slide out of the connecting plate 1. This allows for quick replacement of guide rods 6 at different angles to adapt to changes in cardboard size. Connecting rods 9 are rotatably connected to both ends of one bottom side of the fixed plate 8. The bottoms of the connecting rods 9 are fixed. A stop bar 10 is connected and passes through a support plate 3 on one side. The stop bar 10 can rotate within the support plate 3 through the installed connecting rod 9, so that the front end of the cardboard is automatically pulled up during the folding process, realizing an automated folding process, reducing manual intervention and improving production efficiency. The bottom of the support plate 12 is fixedly connected with evenly distributed telescopic rods 13. The outer ring of each telescopic rod 13 is fitted with a second spring 14, and the bottom of each telescopic rod 13 is provided with a ball bearing 15. Through the deformation of the telescopic rod 13, the second spring 14 is squeezed, thereby pre-pressing during folding and improving the shape retention of the crease.

[0035] Reference Figure 4 A transmission rod 19 is rotatably connected to one end of the support frame 18. A worm gear 20 is fixedly connected to one end of the transmission rod 19. A threaded rod 22 is rotatably connected to the bottom of the support frame 18. A worm wheel 23 is fixedly connected to the top of the threaded rod 22, and the worm wheel 23 meshes with the worm gear 20. A nut pair 24 is threadedly connected to the outer ring of the threaded rod 22, and the nut pair 24 is slidably connected to the support frame 18. Fixed rods 25 are slidably connected to both ends of the top of the nut pair 24, and the fixed rods 25 are fixedly connected to the support frame 18. The rotation of the transmission rod 19 causes the worm gear 20 to drive the worm wheel 23 to rotate. This allows the threaded rod 22 to drive the nut assembly 24 to slide within the support frame 18, ensuring that the damping spring 26 remains stable when no adjustment is needed. This prevents unexpected changes in the pressure of the pressure roller 29, improving the stability and reliability of the equipment. The bottom of the outer ring of the fixed rod 25 is slidably connected to a slider 27, which is slidably connected to the support frame 18. The middle of the outer ring of the fixed rod 25 is fitted with a damping spring 26. Through the rebound of the damping spring 26, the slider 27 slides on the fixed rod 25, thereby avoiding excessive pressure on the cardboard, reducing cardboard damage, and improving the quality of the carton.

[0036] Working principle: By sliding the slide bar 5 into the support plate 3, the first spring 4 is compressed. Then, the support plate 3 slides into both sides of the connecting plate 1. With the rebound of the first spring 4, the slide bar 5 slides out from the support plate 3 and enters the connecting plate 1, achieving the fixed limit of the required support plate 3, thereby adjusting the required guide bar 6. When the cardboard is blocked by the guide bar 6, its two sides will be folded. Then, the cardboard contacts the stop bar 10, causing the stop bar 10 to rotate upward, making the limiting bar 11 rotate within the fixed plate 8, thereby pulling up the front end of the cardboard. The front end of the cardboard is folded and compressed by its own weight. The length of one side of the support plate 3 is much smaller than the length of the cardboard to be processed, avoiding the stop bar 10 from blocking the transportation, allowing the cardboard to be transported smoothly. After the cardboard is conveyed to the second conveyor belt 16, it contacts the ball bearing 15, causing the ball bearing 15 to move upward, causing the cardboard to stretch. The compression rod 13 deforms, thereby compressing the second spring 14. Then, the rebound of the second spring 14 causes the ball bearing 15 to initially compress the cardboard, preventing the folded cardboard from springing back. The cardboard is then transported to the bottom of the pressure roller 29. The rotation of the transmission rod 19 causes the worm gear 20 to rotate within the support frame 18. The worm gear 20 is engaged with the worm wheel 23, causing the worm wheel 23 to drive the threaded rod 22 to rotate within the support frame 18. This causes the nut pair 24 to slide a specified distance within the support frame 18, thereby compressing the damping spring 26. Subsequently, the pressure roller 29 contacts the folded cardboard, causing the pressure roller 29 to move upward, driving the slider 27 to slide upward within the support frame 18. The slider 27 slides along the fixed rod 25, compressing the damping spring 26. Finally, the rebound of the damping spring 26 provides the final compression to the folded cardboard.

[0037] 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.

[0038] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency cardboard box folding device for cardboard box processing, comprising two connecting plates (1), characterized in that: Support plates (3) are slidably connected to both sides of the middle of the connecting plates (1). A first spring (4) is fixedly connected to both ends of the support plates (3). A sliding rod (5) is fixedly connected to the other end of the first spring (4). The sliding rod (5) is slidably connected to the connecting plates (1). Guide rods (6) are provided on both sides of the top of one side of the support plate (3). A connecting frame (7) is fixedly connected to the top side of the connecting plate (1). A fixing plate (8) is fixedly connected to the inner wall of the connecting frame (7). A connecting rod (8) is rotatably connected to both ends of the bottom side of the fixing plate (8). The connecting rod (9) has a stop bar (10) fixedly connected to its bottom, and the stop bar (10) passes through the support plate (3) on one side. The bottom middle of the fixed plate (8) has a limit rod (11) fixedly connected. The other side of the inner wall of the fixed plate (8) has a bearing plate (12) fixedly connected. The bottom of the bearing plate (12) has a uniformly distributed telescopic rod (13) fixedly connected. The outer ring of the telescopic rod (13) is fitted with a second spring (14). The bottom of the telescopic rod (13) is provided with a ball bearing (15). The other side of the top of the connecting plate (1) is provided with an adjustment component.

2. The high-efficiency cardboard folding device for cardboard box processing according to claim 1, characterized in that: The adjustment assembly includes a support frame (18), which is fixedly connected to the other side of the top of the connecting plate (1), and a transmission rod (19) is rotatably connected through one end of the support frame (18).

3. The high-efficiency carton folding device for carton processing according to claim 2, characterized in that: One end of the transmission rod (19) is fixedly connected to a worm gear (20), and the other end of the transmission rod (19) is fixedly connected to a rocker arm (21).

4. The high-efficiency carton folding device for carton processing according to claim 2, characterized in that: The bottom of the support frame (18) is connected to a threaded rod (22) that is rotatably connected. The top of the threaded rod (22) is fixedly connected to a worm wheel (23), and the worm wheel (23) is meshed with the worm (20).

5. The high-efficiency carton folding device for carton processing according to claim 4, characterized in that: The outer ring of the threaded rod (22) is threaded with a nut pair (24), and the nut pair (24) is connected to the bearing frame (18) through and slidingly connected.

6. The high-efficiency carton folding device for carton processing according to claim 5, characterized in that: The top two ends of the nut assembly (24) are connected by a fixed rod (25) that is slidably connected, and the fixed rod (25) is fixedly connected to the bearing frame (18). The bottom of the outer ring of the fixed rod (25) is connected by a slider (27) that is slidably connected, and the slider (27) is slidably connected to the bearing frame (18).

7. The high-efficiency carton folding device for carton processing according to claim 6, characterized in that: One end of the slider (27) is fixedly connected to a servo motor (28). The output end of the servo motor (28) passes through the slider (27) and is fixedly connected to a pressure roller (29). The pressure roller (29) is rotatably connected to the support frame (18). The outer ring of the fixed rod (25) is fitted with a damping spring (26).

8. The high-efficiency carton folding device for carton processing according to claim 1, characterized in that: A second conveyor belt (16) is provided between the support plates (3), a first conveyor belt (2) is provided on one side between the connecting plates (1), and a third conveyor belt (17) is provided on the other side between the connecting plates (1).

Images