Indentation device for carton production
By using automated conveying components and a synchronous opposing drive structure, the problems of continuity and position adjustment of the creasing device in carton production are solved, realizing an efficient and stable cardboard creasing process that is adaptable to the production of cartons of various specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU HUAYING PACKAGE CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-08-04
AI Technical Summary
Existing creasing devices for carton production suffer from poor production continuity, low efficiency, and inflexible creasing position adjustment, which particularly affects the flexibility of the production line when handling orders for cartons of various sizes.
By employing a feeding conveyor assembly, a discharging conveyor assembly, and a feeding limit structure, combined with a synchronous opposing drive structure and an electric push rod, the paperboard can be automatically and continuously conveyed and the creasing position can be flexibly adjusted. The position and force of the creasing wheel are controlled by the electric push rod and the drive motor.
It enables efficient and continuous production of cardboard, improves the stability and production efficiency of the creasing process, meets the production needs of multi-specification cartons, reduces friction damage, and enhances the flexibility of creasing positions.
Smart Images
Figure CN224588718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard box processing technology, specifically to an indentation device for cardboard box production. Background Technology
[0002] In the cardboard box production process, creasing is one of the key steps. Its main purpose is to create clear crease lines on the cardboard through mechanical pressure, ensuring that the box can be folded precisely. Creasing enhances the structural stability of the cardboard, preventing cracks or deformation during folding, while also improving production efficiency and the appearance of the finished product. Furthermore, accurate creasing helps the box maintain its shape during transportation and stacking, increasing its load-bearing capacity and thus better protecting the contents. Existing creasing devices for cardboard production mainly rely on manual operation during the loading and unloading of cardboard, which requires frequent interruptions to the production process for material handover, resulting in poor continuity of the creasing process and low production efficiency. For example, the creasing device for carton production disclosed in Chinese patent documents with publication numbers CN222538387U and CN222022272U; Furthermore, existing carton creasing devices mostly use bolt-fixed installation structures for the creasing wheels. When the creasing position needs to be adjusted, operators must stop the machine and manually remove the fasteners to reposition the creasing wheels through physical displacement. This mechanical adjustment method is not only time-consuming and labor-intensive, but also cannot achieve rapid response to differentiated creasing requirements during production. Especially when handling orders for cartons of various sizes, the fixed creasing wheel layout significantly increases equipment setup time and seriously affects the flexibility of the production line. Utility Model Content
[0003] The purpose of this invention is to provide a creasing device for carton production to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a creasing device for carton production, comprising a frame, a bottom mounting frame at the bottom of the frame, a top mounting frame above the bottom mounting frame, two drive blocks symmetrically arranged on both the bottom and top mounting frames, and a synchronous opposing drive structure provided in conjunction with the drive blocks, a clamping frame on the opposite side of the two longitudinally corresponding drive blocks, a creasing wheel mounted on the clamping frame via bearings, a first electric push rod at the top of the frame, the output end of the first electric push rod being connected to the top mounting frame, a feeding conveying assembly on one side of the frame, and a discharging conveying assembly on the other side, the conveying surfaces of the feeding and discharging conveying assemblies corresponding to the working height of the lower creasing wheel, and feeding limiting structures on both sides of the feeding conveying assembly.
[0005] The present invention is further configured such that the feeding limiting structure includes a limiting guide, a guide roller is mounted on the limiting guide via a bearing structure, a guide belt is sleeved on the guide roller, and a movable adjustment structure is provided between the limiting guide and the machine frame.
[0006] The present invention is further configured such that the movable adjustment structure includes a second electric push rod, which is installed on one side of the frame located on the feeding and conveying assembly. The output end of the second electric push rod is connected to the limiting guide. When the second electric push rod is activated, the limiting guide can be driven to move. The limiting guide can control the movement of the guide roller and the guide belt, thereby achieving the limiting of the cardboard during the creasing feeding process and improving the accuracy and stability of the creasing feeding.
[0007] The present invention is further configured such that the limiting guide includes an inlet section and a limiting section, the limiting section is parallel to the feeding conveying direction, and the inlet section is inclined outward from the limiting section. The setting of the inlet section can better realize the feeding guidance of the cardboard, so that the cardboard can accurately enter the limiting section and realize the limiting feeding.
[0008] The present invention is further configured such that the synchronous opposing drive structure includes a bidirectional screw, the bidirectional screw is mounted on the corresponding top mounting bracket and bottom mounting bracket via bearings, one end of each bidirectional screw is connected to a drive motor, and two drive blocks in the same group are symmetrically mounted on the bidirectional screw with threads.
[0009] The present invention is further configured such that limiting slide rods are provided on both sides of the bidirectional screw, and the limiting slide rods are fixedly installed on the corresponding top mounting bracket and bottom mounting bracket. The driving block is slidably sleeved on the limiting slide rod. When the drive motor is started, the bidirectional screw is controlled to rotate. Through the threaded engagement between the bidirectional screw and the driving block and the sliding limiting engagement between the driving block and the limiting slide rod, the two driving blocks can move synchronously towards each other, thereby realizing the flexible adjustment of the distance between the two sets of driving blocks. In addition, the distance between the two sets of indentation wheels located on the driving block can be adjusted, thus realizing the flexible adjustment of the indentation position. In the present invention, a telescopic cover can be provided on the outside of the bidirectional screw for protection, and the telescopic cover is preferably a corrugated cover.
[0010] The present invention is further configured such that both the feeding conveyor assembly and the unloading conveyor assembly include a conveyor frame, a conveyor shaft is mounted on the conveyor frame via bearings, multiple sets of conveyor wheels are provided on the conveyor shaft, a conveyor belt is fitted on each set of conveyor wheels, a conveyor motor is provided on the conveyor frame, and the conveyor motor is drivenly connected to the conveyor shaft. When the conveyor motor is started, the rotation of the conveyor shaft can be controlled by the conveyor motor, which in turn drives the rotation of the conveyor wheels, and the rotation of the conveyor wheels can control the movement of the conveyor belt, thereby realizing the feeding and unloading of the cardboard during creasing.
[0011] The present invention is further configured such that limiting telescopic rods are provided on both sides of the first electric push rod and the second electric push rod. By setting the limiting telescopic rods, the torque borne by the first electric push rod and the second electric push rod during use can be shared, thereby improving the movement stability of the top mounting bracket and the limiting guide.
[0012] The present invention is further configured such that support frames are provided on both sides of the frame, a third electric push rod is provided on the support frame, a pressure frame is provided at the bottom end of the third electric push rod, and a pressure wheel is provided at the bottom end of the pressure frame through a bearing, thereby improving the stability of the cardboard during loading and unloading.
[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. High-efficiency continuous production and precise material feeding This invention achieves automated continuous conveying of cardboard by setting up a feeding conveyor assembly, a discharging conveyor assembly, and a feeding limiting structure. The guide belt and guide rollers in the feeding limiting structure cooperate to convert the sliding friction between the cardboard and the limiting structure into rolling friction, ensuring precise alignment during feeding and reducing frictional damage to the cardboard edges. A second electric push rod drives the limiting guide frame for flexible adjustment, adapting to cardboard of different widths, significantly improving the stability and production efficiency of the creasing process and avoiding the interruptions caused by traditional manual feeding.
[0014] 2. The indentation position and pressure are flexibly adjustable. Employing a synchronous, counter-current drive structure with a bidirectional screw and drive block, the spacing between the two sets of creasing rollers is controlled by a drive motor, enabling dynamic adjustment of the creasing position to meet the production needs of various carton sizes. The first electric push rod adjusts the height of the top mounting bracket, thereby precisely controlling the pressure of the creasing rollers on the cardboard and allowing for flexible adjustment of the creasing force. The synergistic effect of the creasing rollers and the conveyor belt further enhances the stability of cardboard conveying. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the creasing device for carton production in this utility model. Figure 1 ; Figure 2This is a schematic diagram of the overall structure of the creasing device for carton production in this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the installation structure of the upper and lower sets of indentation wheels in this utility model; Figure 4 This is a cross-sectional schematic diagram of the cooperation structure between the limiting guide frame, guide roller and guide belt in this utility model; Figure 5 This is an exploded view of the overall structure of the feeding and conveying assembly in this utility model.
[0016] The components represented by each number in the attached diagram are listed below: 1. Frame; 2. Bottom mounting bracket; 3. Top mounting bracket; 4. Drive block; 5. Clamping bracket; 6. Indentation wheel; 7. First electric push rod; 8. Limiting guide frame; 9. Guide roller; 10. Guide belt; 11. Second electric push rod; 12. Inlet section; 13. Limiting section; 14. Bidirectional screw; 15. Drive motor; 16. Limiting slide bar; 17. Conveyor frame; 18. Conveyor shaft; 19. Conveyor wheel; 20. Conveyor belt; 21. Conveyor motor; 22. Limiting telescopic rod; 23. Support frame; 24. Third electric push rod; 25. Firming frame; 26. Firming wheel. Detailed Implementation
[0017] 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.
[0018] This utility model provides a technical solution: Please refer to Figures 1-5 A creasing device for carton production includes a frame 1, a bottom mounting frame 2 at the bottom of the frame 1, a top mounting frame 3 above the bottom mounting frame 2, two drive blocks 4 symmetrically arranged on both the bottom mounting frame 2 and the top mounting frame 3, and a synchronous opposing drive structure in cooperation with the drive blocks 4. A clamping frame 5 is arranged on the opposite side of the two longitudinally corresponding drive blocks 4, and a creasing wheel 6 is mounted on the clamping frame 5 through bearings. A first electric push rod 7 is arranged at the top of the frame 1, and the output end of the first electric push rod 7 is connected to the top mounting frame 3. A feeding conveying assembly is arranged on one side of the frame 1, and a discharging conveying assembly is arranged on the other side. The conveying surfaces of the feeding conveying assembly and the discharging conveying assembly correspond to the working height of the creasing wheel 6 below. Feeding limiting structures are arranged on both sides of the feeding conveying assembly.
[0019] The feeding limiting structure includes a limiting guide frame 8, a guide roller 9 is installed on the limiting guide frame 8 through a bearing structure, a guide belt 10 is sleeved on the guide roller 9, and a movable adjustment structure is provided between the limiting guide frame 8 and the frame 1. The movable adjustment structure includes a second electric push rod 11, which is installed on one side of the frame 1 located in the feeding and conveying assembly. The output end of the second electric push rod 11 is connected to the limiting guide 8. When the second electric push rod 11 is activated, the limiting guide 8 can be driven to move. The limiting guide 8 can control the movement of the guide roller 9 and the guide belt 10, thereby achieving the limiting of the cardboard during the creasing feeding process and improving the accuracy of creasing feeding.
[0020] Please see Figures 1-5 As one implementation of the limiting guide 8: the limiting guide 8 includes an inlet section 12 and a limiting section 13. The limiting section 13 is parallel to the feeding conveying direction. The inlet section 12 is inclined outward from the limiting section 13. The setting of the inlet section 12 can better realize the feeding guidance of the cardboard, so that the cardboard can accurately enter the limiting section 13 and realize the limiting feeding.
[0021] Please see Figures 1-5 As one implementation of the synchronous phase-to-phase drive structure: The synchronous phase-to-phase drive structure includes a bidirectional screw 14, which is mounted on the corresponding top mounting bracket 3 and bottom mounting bracket 2 via bearings. One end of each bidirectional screw 14 is connected to a drive motor 15. Two drive blocks 4 in the same group are symmetrically mounted on the bidirectional screw 14 by threads.
[0022] Furthermore, both sides of the bidirectional screw 14 are provided with limiting slide rods 16, which are fixedly installed on the corresponding top mounting bracket 3 and bottom mounting bracket 2. The drive block 4 is slidably sleeved on the limiting slide rod 16. When the drive motor 15 is started, the bidirectional screw 14 is controlled to rotate. Through the threaded engagement between the bidirectional screw 14 and the drive block 4 and the sliding limiting engagement between the drive block 4 and the limiting slide rod 16, the two drive blocks 4 can move synchronously towards each other, thereby realizing the flexible adjustment of the distance between the two sets of drive blocks 4. In turn, the distance between the two sets of indentation wheels 6 located on the drive block 4 can be adjusted, thus realizing the flexible adjustment of the indentation position. In this utility model, a telescopic cover can be provided on the outside of the bidirectional screw 14 for protection. The telescopic cover is preferably a corrugated cover.
[0023] In this utility model, both the feeding conveyor assembly and the unloading conveyor assembly include a conveyor frame 17. A conveyor shaft 18 is mounted on the conveyor frame 17 via bearings. Multiple sets of conveyor wheels 19 are provided on the conveyor shaft 18. A conveyor belt 20 is fitted on each set of conveyor wheels 19. A conveyor motor 21 is provided on the conveyor frame 17. The conveyor motor 21 is connected to the conveyor shaft 18 for transmission. When the conveyor motor 21 is started, the rotation of the conveyor shaft 18 can be controlled. The rotation of the conveyor wheels 19 can be controlled by the rotation of the conveyor belt 20, thereby realizing the feeding and unloading of the cardboard during creasing.
[0024] In this invention, limiting telescopic rods 22 are provided on both sides of the first electric push rod 7 and the second electric push rod 11. By setting the limiting telescopic rods 22, the torque borne by the first electric push rod 7 and the second electric push rod 11 during use can be shared, thereby improving the movement stability of the top mounting bracket 3 and the limiting guide bracket 8. This utility model has support frames 23 on both sides of the frame 1. A third electric push rod 24 is provided on the support frame 23. A pressure frame 25 is provided at the bottom end of the third electric push rod 24. A pressure wheel 26 is provided at the bottom end of the pressure frame 25 through a bearing. The lifting and lowering of the pressure frame 25 can be controlled by the third electric push rod 24. The lifting and lowering of the pressure wheel 26 can be controlled by the pressure frame 25. The setting of the pressure wheel 26 can improve the conveying friction between the cardboard and the conveyor belt 20, and ensure the conveying stability of the cardboard when passing through the indentation wheel 6.
[0025] In summary, the working principle and specific workflow of this utility model are as follows: In use, the cardboard is placed on the conveyor belt 20 in the feeding direction and fed by the conveyor belt 20; Before conveying, the second electric push rod 11 can be activated, which can drive the limiting guide 8 to move. The limiting guide 8 can control the movement of the guide roller 9 and the guide belt 10, thereby limiting the paperboard during the creasing and feeding process and improving the accuracy and stability of the creasing and feeding. When the cardboard comes into contact with the guide belt 10, if there is friction, the guide belt 10 can be moved by friction through the cooperation of the guide roller 9 and the bearing, so that the sliding friction between the cardboard and the guide belt 10 becomes rolling friction, thereby realizing the feeding limit function and reducing the friction loss of the cardboard caused by the feeding limit. Afterwards, the cardboard reaches the positions of the upper and lower sets of creasing rollers 6. Here, the position of the lower creasing roller 6 is slightly higher than the height of the conveyor belt 20. Thus, under the conveying action of the conveyor belt 20 and the downward pressing action of the pressing roller 26, the cardboard can stably pass through the upper and lower sets of creasing rollers 6 and perform creasing operations through the creasing rollers 6. During this process, the lifting and lowering of the top mounting bracket 3 can be controlled by extending and retracting the first electric push rod 7, thereby adjusting the creasing height of the creasing wheel 6 and adjusting the creasing force of the cardboard. After creasing, the cardboard will reach the conveyor belt 20 in the feeding direction for feeding. In the above process, a pressure sensor can be used to detect the indentation pressure. The installation and use of the pressure sensor are known technologies and will not be described in detail here. When performing the creasing operation on cardboard, this utility model can start the drive motor 15, which controls the rotation of the bidirectional screw 14. Through the threaded engagement between the bidirectional screw 14 and the drive block 4, and the sliding limit engagement between the drive block 4 and the limit slide rod 16, the two drive blocks 4 can move synchronously towards each other, thereby achieving flexible adjustment of the distance between the two sets of drive blocks 4. In turn, it can achieve adjustment of the distance between the two sets of creasing wheels 6 located on the drive block 4, achieving flexible adjustment of the creasing position and improving the flexibility of cardboard creasing. In this utility model, the operation of related electrical components such as motors and electric push rods can be controlled by a PLC control system according to a set program. The specific working process and working principle of this utility model have been described in detail. Based on the above working process and working principle, those skilled in the art should know the specific circuit connection relationship and implement it through existing technology. Furthermore, the circuit connection relationship between related electrical components and the specific driver program are not the subject of protection of this utility model, and this utility model will not elaborate on them.
[0026] 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.
[0027] 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 creasing device for carton production, comprising a frame (1), characterized in that: The bottom end of the frame (1) is provided with a bottom mounting bracket (2), and the top mounting bracket (3) is provided above the bottom mounting bracket (2). Two drive blocks (4) are symmetrically arranged on the bottom mounting bracket (2) and the top mounting bracket (3), and a synchronous opposing drive structure is provided in cooperation with the drive blocks (4). A clamping frame (5) is provided on the opposite side of the two longitudinally corresponding drive blocks (4). An indentation wheel (6) is installed on the clamping frame (5) through a bearing. A first electric push rod (7) is provided at the top of the frame (1). The output end of the first electric push rod (7) is connected to the top mounting bracket (3). A feeding conveying component is provided on one side of the frame (1), and a discharging conveying component is provided on the other side. The conveying surfaces of the feeding conveying component and the discharging conveying component correspond to the working height of the lower indentation wheel (6). Feeding limiting structures are provided on both sides of the feeding conveying component.
2. The creasing device for carton production according to claim 1, characterized in that: The feeding limiting structure includes a limiting guide (8), a guide roller (9) is installed on the limiting guide (8) through a bearing structure, a guide belt (10) is sleeved on the guide roller (9), and a moving adjustment structure is provided between the limiting guide (8) and the frame (1).
3. The creasing device for carton production according to claim 2, characterized in that: The movable adjustment structure includes a second electric push rod (11), which is installed on one side of the frame (1) located in the feeding and conveying assembly. The output end of the second electric push rod (11) is connected to the limiting guide (8).
4. The creasing device for carton production according to claim 3, characterized in that: The limiting guide (8) includes an inlet section (12) and a limiting section (13). The limiting section (13) is parallel to the feeding and conveying direction, and the inlet section (12) is inclined outward from the limiting section (13).
5. The creasing apparatus for carton production of claim 1, wherein: The synchronous opposing drive structure includes a bidirectional screw (14), which is mounted on the corresponding top mounting bracket (3) and bottom mounting bracket (2) via bearings. One end of each bidirectional screw (14) is connected to a drive motor (15). Two drive blocks (4) in the same group are symmetrically mounted on the bidirectional screw (14) with threads.
6. The creasing device for carton production according to claim 5, characterized in that: Both sides of the bidirectional screw (14) are provided with limiting slide rods (16), the limiting slide rods (16) are fixedly installed on the corresponding top mounting bracket (3) and bottom mounting bracket (2), and the driving block (4) is slidably sleeved on the limiting slide rods (16).
7. The creasing apparatus for carton production of claim 1, wherein: Both the feeding and unloading conveying components include a conveyor frame (17). A conveyor shaft (18) is mounted on the conveyor frame (17) via bearings. Multiple sets of conveyor wheels (19) are provided on the conveyor shaft (18). A conveyor belt (20) is fitted on each set of conveyor wheels (19). A conveyor motor (21) is provided on the conveyor frame (17). The conveyor motor (21) is connected to the conveyor shaft (18) in a transmission connection.
8. The creasing apparatus for carton production of claim 3, wherein: Both sides of the first electric push rod (7) and the second electric push rod (11) are equipped with limit telescopic rods (22).
9. The creasing apparatus for carton production of claim 1, wherein: The frame (1) is provided with support frames (23) on both sides. A third electric push rod (24) is provided on the support frame (23). A pressure frame (25) is provided at the bottom end of the third electric push rod (24). A pressure wheel (26) is provided at the bottom end of the pressure frame (25) through a bearing.