A creasing device for paper packaging boxes
By introducing adjustment and limiting mechanisms into the paper packaging box processing device, and using servo motors to drive gears and turntables, the automatic adjustment of the crease wheel spacing and carton limit is achieved, solving the problem of inconvenient adjustment of the crease wheel spacing in the prior art and improving the applicability and practicality of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南京嘉宏包装有限公司
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-03
AI Technical Summary
Existing paper packaging box processing equipment requires the use of measuring equipment to adjust the spacing of the creasing rollers, which is inconvenient and reduces the applicability and ease of adjustment of the equipment.
The system employs an adjustment mechanism and a limit mechanism, which are driven by servo motors to the gears and turntables respectively, to achieve automatic adjustment of the pressure roller spacing and carton limit. The precise control of the servo motor enhances the convenience and applicability of the adjustment.
It enables precise adjustment of the creasing wheel spacing and effective limiting of cartons, improving the applicability and practicality of the device and ensuring the creasing quality of cartons of different sizes.
Smart Images

Figure CN224447045U_ABST
Abstract
Description
Technical Field
[0001] This utility model is specifically a creasing device for paper packaging boxes, belonging to the field of paper packaging box processing technology. Background Technology
[0002] Packaging boxes are mainly used to facilitate transportation, loading and unloading, and storage. Paper packaging boxes have become the first choice for many companies in the packaging box field due to their unique green and environmentally friendly characteristics. Among them, corrugated cardboard boxes are the most widely used packaging products. In the production process of corrugated cardboard boxes, creasing devices are required.
[0003] Chinese patent CN112571856A discloses a creasing device for processing paper packaging boxes, including a base, a creasing wheel, a top frame, and a hollow block. The base has upright plates fixedly connected to both sides of its top end, and a first sliding rod fixedly connected to the bottom of each upright plate. The top frame is fixedly connected to the top of each upright plate. Sliding sleeves are fixedly connected to both sides of the connecting plate, and multiple sleeve blocks are fixedly connected to the bottom of the connecting plate. This application achieves this by fixing a block to the top of the creasing wheel, allowing the creasing wheel to drive the fixing block into the sleeve block. At this time, a limiting block enters the placement groove, and the locking rod can rotate via a movable shaft, allowing it to lock onto both sides of the fixing block, thus limiting the position of the fixing block. Similarly, the creasing wheel can be disassembled, making it easy to install and remove, and allowing for selection of the appropriate device according to needs.
[0004] The existing processing of cardboard boxes varies depending on the model and the location of the creasing. The spacing of the creasing rollers needs to be adjusted according to the different specifications of the cardboard boxes. Processing cardboard boxes of different specifications requires adjusting the spacing of the creasing rollers. The process of adjusting the spacing of the creasing rollers requires the use of measuring equipment, which is inconvenient and reduces the applicability of the device. The adjustment is not very convenient. Therefore, a new technical solution needs to be designed to solve this problem. Utility Model Content
[0005] The purpose of this utility model is to provide a creasing device for paper packaging boxes in order to solve the above-mentioned problems. In the prior art, when processing paper boxes of different specifications for creasing, the process of adjusting the distance between the creasing rollers requires the use of measuring equipment for operation and adjustment, which is inconvenient and reduces the applicability and ease of adjustment of the device.
[0006] This utility model is achieved through the following technical solution: a creasing device for paper packaging boxes, including a workbench, support rods fixed at the four corners of the bottom of the workbench, a conveyor embedded in the top of the workbench, a force plate fixed at the top between the two sides of the inner cavity of the conveyor, a mounting frame fixed in the top of the workbench, an adjustment mechanism provided on the inner side of the mounting frame, and a limit mechanism provided at the bottom of the workbench.
[0007] Preferably, the adjustment mechanism includes an electric telescopic rod symmetrically fixed to the top of the mounting frame, a connecting frame fixed to the output shaft end of the electric telescopic rod, a first servo motor fixed to the top center of the connecting frame, a gear fixed to the output shaft end of the first servo motor, slide rods symmetrically fixed to the bottom between the two inner sides of the connecting frame, sliders symmetrically sliding on the outer side of the slide rods, a pressure roller connected to the bottom of the sliders by bolts, and a rack fixed to the top edge of the sliders.
[0008] Preferably, the input ends of the electric telescopic rod and the first servo motor are electrically connected to the input end of an external power supply, and the output shaft of the first servo motor passes through the inner top of the connecting frame.
[0009] Preferably, the rack and the gear are meshed together, and when the gear rotates, it drives the two racks to move relative to each other. Through slots are provided on both sides of the connecting frame to avoid obstructing the movement of the racks.
[0010] Preferably, the limiting mechanism includes a fixed frame fixed to the bottom of the workbench, with limiting rods symmetrically fixed to the top of both sides inside the fixed frame, a movable plate symmetrically sliding on the outer side of the limiting rod, and a concave rod symmetrically fixed to the other side of the movable plate, with a limiting plate fixed to one end of the concave rod.
[0011] Preferably, the limiting mechanism further includes a second servo motor fixed to the middle of the bottom inner side of the fixed frame, a turntable fixed to the end of the output shaft of the second servo motor, a connecting shaft symmetrically fixed to the top of the turntable, a connecting rod rotatably mounted on the outer side wall of the connecting shaft, and a connecting seat fixed to the middle of one side of the moving plate.
[0012] Preferably, the input end of the second servo motor is electrically connected to the output end of an external power supply, and one end of the connecting rod rotates inside the connecting seat. When the turntable rotates, it drives the connecting shaft to deflect, causing the connecting rod to deflect and move the connecting seat.
[0013] Preferably, the concave rod passes through the outer side of the fixing frame and the inner side of the mounting frame, and the concave rod and the fixing frame and the mounting frame are slidably connected to each other, so as to facilitate the movement of the concave rod.
[0014] This utility model provides an indentation device for paper packaging boxes, which has the following beneficial effects:
[0015] 1. This application, through the setting of the adjustment mechanism, starts the first servo motor, drives the gear to rotate, and the gear meshes with the rack. When the gear rotates, the rack moves relative to the gear, thereby causing the slider to move relative to the outside of the slide bar, which in turn drives the pressure rollers to move relative to each other. Adjusting the distance between the two pressure rollers makes it easy to adjust the distance of the creasing rollers according to the carton model, making it convenient to creasing different carton models and improving the applicability of the device.
[0016] 2. This application, through the setting of the limiting mechanism, drives the turntable to rotate by starting the second servo motor, causing the connecting shaft to deflect, which in turn causes the connecting rod to deflect, causing the connecting seats to move closer together, causing the moving plates to move closer together on the outside of the limiting rod, causing the concave rod to drive the limiting plates to move closer together, so that the limiting plates are in contact with the cardboard, limiting the cardboard and preventing the cardboard from shifting during creasing, preventing the cardboard quality from being affected, and improving the practicality of the device. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the load-bearing plate installation structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the adjustment mechanism structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the limiting mechanism of this utility model.
[0021] [Explanation of Key Component Symbols]
[0022] 1. Workbench;
[0023] 2. Support rod;
[0024] 3. Conveyor; 301. Load-bearing plate;
[0025] 4. Mounting bracket;
[0026] 5. Adjustment mechanism; 501. Electric telescopic rod; 502. Connecting frame; 503. First servo motor; 504. Gear; 505. Slide rod; 506. Slider; 507. Pressure roller; 508. Rack;
[0027] 6. Limiting mechanism; 601. Fixed frame; 602. Second servo motor; 603. Turntable; 604. Connecting shaft; 605. Connecting rod; 606. Limiting rod; 607. Moving plate; 608. Connecting seat; 609. Concave rod; 610. Limiting plate. Detailed Implementation
[0028] This utility model provides an indentation device for paper packaging boxes.
[0029] Example 1:
[0030] A creasing device for paper packaging boxes includes a workbench 1, support rods 2 fixed at the four corners of the bottom of the workbench 1, a conveyor 3 embedded in the top of the workbench 1, a force plate 301 fixed at the top between the two sides of the inner cavity of the conveyor 3, a mounting frame 4 fixed in the top of the workbench 1, and an adjustment mechanism 5 provided on the inner side of the mounting frame 4.
[0031] Please refer to it again. Figure 3 The adjustment mechanism 5 includes an electric telescopic rod 501 symmetrically fixed to the top of the mounting frame 4. A connecting frame 502 is fixed to the output shaft end of the electric telescopic rod 501. A first servo motor 503 is fixed to the top center of the connecting frame 502. A gear 504 is fixed to the output shaft end of the first servo motor 503. Slide rods 505 are symmetrically fixed to the bottom between the two inner sides of the connecting frame 502. Sliding blocks 506 slide symmetrically on the outer side of the slide rods 505. A pressure roller 507 is bolted to the bottom of the sliding blocks 506. A rack 508 is fixed to the top edge of the sliding blocks 506. The input ends of the electric telescopic rod 501 and the first servo motor 503 are electrically connected to the input end of an external power supply. The output shaft of the servo motor 503 passes through the top of the connecting frame 502; the rack 508 is meshed with the gear 504, and through slots are provided on both sides of the connecting frame 502; by adjusting the mechanism 5, the first servo motor 503 is started, which drives the gear 504 to rotate, and the gear 504 is meshed with the rack 508. When the gear 504 rotates, the rack 508 moves relative to it, which causes the slider 506 to move relative to the outside of the slide bar 505, thereby driving the pressure roller 507 to move relative to each other. Adjusting the distance between the two pressure rollers 507 makes it easy to adjust the distance of the creasing rollers according to the model of the carton, which is convenient for creasing different models of carton and improves the applicability of the device.
[0032] Example 2:
[0033] Please refer to it again. Figure 4The bottom of the workbench 1 is provided with a limiting mechanism 6. The limiting mechanism 6 includes a fixed frame 601 fixed to the bottom of the workbench 1. Limiting rods 606 are symmetrically fixed to the top of both sides of the fixed frame 601. A movable plate 607 slides symmetrically on the outer side of the limiting rods 606. A concave rod 609 is symmetrically fixed to the other side of the movable plate 607. A limiting plate 610 is fixed to one end of the concave rod 609. The limiting mechanism 6 also includes a second servo motor 602 fixed to the middle of the bottom of the inner side of the fixed frame 601. A turntable 603 is fixed to the end of the output shaft of the second servo motor 602. A connecting shaft 604 is symmetrically fixed to the top of the turntable 603. A connecting rod 605 rotates on the outer wall of the connecting shaft 604. A connecting seat 608 is fixed to the middle of one side of the movable plate 607. The second servo motor 602... The input terminal is electrically connected to the output terminal of an external power supply. One end of the connecting rod 605 rotates inside the connecting seat 608. The concave rod 609 passes through the outer side of the fixed frame 601 and the inner side of the mounting frame 4, and the concave rod 609 and the fixed frame 601 and the mounting frame 4 are slidably connected. Through the setting of the limiting mechanism 6, the second servo motor 602 drives the turntable 603 to rotate, causing the connecting shaft 604 to deflect, which in turn causes the connecting rod 605 to deflect, causing the connecting seats 608 to move closer to each other, causing the moving plates 607 to move closer to each other outside the limiting rod 606, causing the concave rod 609 to drive the limiting plate 610 to move closer to each other, so that the limiting plate 610 fits with the cardboard, limiting the cardboard and preventing the cardboard from shifting during creasing, thus preventing the cardboard quality from being affected and improving the practicality of the device.
[0034] When using this utility model:
[0035] Working principle: When creasing the cardboard box, the cardboard box is placed on the conveyor 3. The second servo motor 602 is started, which drives the turntable 603 to rotate, causing the connecting shaft 604 to deflect. This, in turn, causes the connecting rod 605 to deflect, driving the connecting seats 608 to move closer together. This causes the moving plates 607 to move closer together outside the limiting rod 606, causing the concave rod 609 to drive the limiting plates 610 to move closer together, so that the limiting plates 610 fit against the cardboard box, limiting the cardboard box. The first servo motor 503 is started, driving the gear 504 to rotate, and the gear 505... 04 meshes with rack 508. When gear 504 rotates, rack 508 moves relative to it, causing slider 506 to move relative to the outside of slide bar 505, which in turn drives pressure roller 507 to move relative to it. Adjusting the distance between the two pressure rollers 507 makes it easy to adjust the position of pressure roller 507 according to the carton model. Turn off the first servo motor 503, start the electric telescopic rod 501, and lower the connecting frame 502, thereby lowering the pressure roller 507 to press the carton cardboard. Start the conveyor 3 to drive the carton cardboard to move, and perform creasing treatment on the carton cardboard.
[0036] It is worth noting that the first servo motor 503 and the second servo motor 602 precisely control the speed and position through the input voltage signal, and have high-precision positioning capability. They can directly convert the electrical signal into angular displacement or angular velocity output on the shaft. The first servo motor 503 drives the gear 504 to rotate, and the gear 504 meshes with the rack 508. When the gear 504 rotates, it causes the rack 508 to move relative to it, thereby causing the slider 506 to move relative to the outside of the slide bar 505, which in turn drives the pressure roller 507 to move relative to it, so as to precisely adjust the distance between the pressure rollers 507.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A creasing device for paper packaging boxes, comprising a workbench (1), support rods (2) fixed at the four corners of the bottom of the workbench (1), a conveyor (3) embedded in the top of the workbench (1), a force-bearing plate (301) fixed between the two sides of the inner cavity of the conveyor (3), and a mounting frame (4) fixed in the top of the workbench (1), characterized in that: An adjustment mechanism (5) is provided on the inner side of the mounting bracket (4), and a limit mechanism (6) is provided on the bottom of the workbench (1).
2. A creasing device for paperboard packaging boxes according to claim 1, characterized in that The adjustment mechanism (5) includes an electric telescopic rod (501) symmetrically fixed to the top of the mounting frame (4). A connecting frame (502) is fixed to the output shaft end of the electric telescopic rod (501). A first servo motor (503) is fixed to the top center of the connecting frame (502). A gear (504) is fixed to the output shaft end of the first servo motor (503). A slide rod (505) is symmetrically fixed to the bottom between the two sides inside the connecting frame (502). A slider (506) slides symmetrically on the outside of the slide rod (505). A pressure roller (507) is bolted to the bottom of the slider (506). A rack (508) is fixed to the top edge of the slider (506).
3. A creasing device for paperboard packaging cartons according to claim 2, characterized in that The input ends of the electric telescopic rod (501) and the first servo motor (503) are electrically connected to the input end of an external power supply, and the output shaft of the first servo motor (503) passes through the top of the inner interior of the connecting frame (502).
4. A creasing device for paperboard packaging cartons according to claim 2, characterized in that: The rack (508) is meshed with the gear (504), and through slots are provided on both sides of the connecting frame (502).
5. A creasing device for paperboard packaging cartons according to claim 1, characterized in that The limiting mechanism (6) includes a fixed frame (601) fixed to the bottom of the workbench (1). Limiting rods (606) are symmetrically fixed on the top of both sides of the fixed frame (601). A movable plate (607) is symmetrically slidable on the outer side of the limiting rod (606). A concave rod (609) is symmetrically fixed on the other side of the movable plate (607). A limiting plate (610) is fixed at one end of the concave rod (609).
6. The indentation device for a paper packaging box according to claim 5, characterized in that: The limiting mechanism (6) further includes a second servo motor (602) fixed to the middle of the bottom of the inner side of the fixed frame (601). The output shaft end of the second servo motor (602) is fixed with a turntable (603). A connecting shaft (604) is symmetrically fixed to the top of the turntable (603). A connecting rod (605) is rotatably mounted on the outer side wall of the connecting shaft (604). A connecting seat (608) is fixed to the middle of one side of the moving plate (607).
7. A creasing device for paperboard packaging cartons according to claim 6, characterized in that The input end of the second servo motor (602) is electrically connected to the output end of the external power supply, and one end of the connecting rod (605) rotates inside the connecting seat (608).
8. A creasing device for paperboard packaging cartons according to claim 5, characterized in that: The concave rod (609) passes through the outer side of the fixing frame (601) and the inner side of the mounting frame (4), and the concave rod (609) and the fixing frame (601) are slidably connected to the mounting frame (4).