A creasing device for carton processing

By designing a crease device for carton processing with positioning and creasing components, the problems of multi-directional creasing and excess material removal are solved, achieving efficient and precise carton processing.

CN224490252UActive Publication Date: 2026-07-14KUNSHAN SUYU PAPER PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN SUYU PAPER PROD CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing crease devices for cardboard box processing cannot perform multi-directional creasing, which affects production efficiency and accuracy. Furthermore, they lack integrated cutting functions, making it difficult to remove excess material.

Method used

A crease device for carton processing, including a positioning component and a creasing component, was designed. The positioning component adjusts the position and angle of the carton through a vacuum suction cup and a drive component, while the creasing component realizes automated processing of multi-directional creasing and die-cutting through a creasing knife and a die-cutting knife.

Benefits of technology

It enables flexible multi-directional processing of cardboard, improves production efficiency and processing accuracy, eliminates processing blind spots, and achieves automatic removal of excess materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a crease device for carton processing belongs to carton processing field. The device includes the bottom plate, and the bottom plate middle part is equipped with the positioner component for adjusting carton direction, and one side of bottom plate top is equipped with the indentation component for pressure mark, and the positioner component includes the mounting bracket of U shape structure, and the connecting pipe that rotates in the inside bottom side of mounting bracket, and the vacuum chuck that is fixed in the bottom end of mounting bracket, and the drive assembly for driving connecting pipe rotation and the control component for driving mounting bracket up and down movement, and the indentation component includes the movable frame that moves in the top of bottom plate and is the U shape structure, and two movable plates that are equipped on movable frame, and the indentation cutter that is equipped in one movable plate bottom, and the die cutter that is equipped in another movable plate bottom. The utility model discloses through the setting of positioner component can freely adjust the plane position and rotation angle of carton, and the processing work is more flexible, efficient, and through indentation component realizes the automatic processing of carton indentation and die cutting, improves production processing efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of cardboard box processing, and in particular to a folding device for cardboard box processing. Background Technology

[0002] Carton creases are marks created on cardboard during the carton manufacturing process using crease-pressing equipment. These creases facilitate subsequent folding and shaping, primarily guiding the folding method and ensuring the carton folds along predetermined lines.

[0003] Chinese patent discloses a crease device for cardboard box processing, application number "202221734365.3". The patent mainly includes a bidirectional modular slide, crease components, a lifting processing table, and an assembly frame. The bidirectional modular slide is installed in the assembly frame. There are two crease components, which are respectively set on the two output ends of the bidirectional modular slide. The lifting processing table is set in the assembly frame and below the two crease components. The patent uses the bidirectional modular slide to control the spacing between the two crease components, and can then work with the lifting processing table to perform multiple creasing processes on the cardboard at different positions. At the same time, it can achieve a rapid creasing process on the cardboard without moving the cardboard.

[0004] However, its laterally movable extruder can only perform creasing in one direction, while cardboard box creases typically involve creasing in multiple directions to meet the requirements of three-dimensional folding. This single-direction processing method may require operator assistance to rotate the cardboard for multi-directional creasing. This not only affects production efficiency but may also lead to decreased creasing accuracy due to human error, thus affecting the fit of subsequent folds. Furthermore, using only an extruder for creasing lacks an integrated cutting module, making it impossible to remove excess material. If subsequent processing is transferred to a separate cutting device, the segmented operation mode increases labor time. Utility Model Content

[0005] This utility model provides a folding device for cardboard box processing, which can solve the problems of existing folding devices for cardboard box processing, such as the inconvenience of multi-directional processing of cardboard boards to meet the requirements of three-dimensional folding and the inability to achieve excess material removal processing.

[0006] A crease device for cardboard box processing includes a base plate, an adjustment component for adjusting the orientation of the cardboard box is provided in the middle of the base plate, and a creasing component is provided on one side of the top of the base plate;

[0007] The adjustment assembly includes a U-shaped mounting frame, a connecting tube that rotates inside the bottom side of the mounting frame, a vacuum suction cup fixed to the bottom end of the connecting tube, a drive assembly for driving the connecting tube to rotate, and a control assembly for driving the mounting frame to move up and down.

[0008] The indentation assembly includes a U-shaped movable frame that is movable on the top of the base plate, two movable plates on the movable frame, an indentation knife at the bottom of one of the movable plates, a die-cutting knife at the bottom of the other movable plate, a first moving component located inside the movable frame for driving the two movable plates to move horizontally synchronously, and a second moving component located on the top of the base plate for driving the movable frame to move horizontally.

[0009] Preferably, a rotary joint is fixedly provided at the top of the connecting pipe, and an outer connecting pipe fixed inside the mounting bracket is fixedly provided at the fixed end of the rotary joint.

[0010] Preferably, the drive assembly includes a first motor fixed to the bottom side of the mounting bracket and two first gears, the first gears being fixed to the top of the output shaft of the first motor and the outside of the connecting pipe, respectively, and the two first gears being meshed together.

[0011] Preferably, the control component includes a fixed frame with an L-shaped structure fixed to the top of the base plate, a first cylinder fixed to the top of the fixed frame, and the mounting bracket fixed to the bottom end of the piston rod of the first cylinder.

[0012] Preferably, the indentation assembly further includes a first mounting plate disposed at the bottom of the movable plate and near the die-cutting blade, a second mounting plate disposed at the bottom of the movable plate and near the indentation blade, and a third motor fixed to one side of the first mounting plate. The die-cutting blade rotates inside the first mounting plate, and the central axis of the die-cutting blade is fixedly connected to the output shaft of the third motor. The indentation blade rotates inside the second mounting plate.

[0013] Preferably, the indentation assembly further includes two second cylinders disposed on the top of the corresponding movable plates, the bottom ends of the piston rods of the second cylinders being fixedly connected to the tops of the corresponding first mounting plate and the second mounting plate, respectively.

[0014] Preferably, the first moving component includes a lead screw that rotates inside the movable frame and a second motor fixed to one end of the movable frame. The end of the lead screw near the second motor passes through the movable frame and is fixedly connected to the output shaft of the second motor. All movable plates are threadedly connected to the lead screw.

[0015] Preferably, the second moving component includes a rack fixed to one end of the movable frame, a fourth motor fixed to the top of the base plate and located on one side of the rack, and a second gear fixed to the top of the output shaft of the fourth motor and meshing with the rack.

[0016] Preferably, guide rods are slidably connected inside both ends of the movable frame, and the guide rods are fixed to the top of the base plate by a fixing plate.

[0017] Preferably, a connecting hose is fixed at the top end of the outer pipe, and the connecting hose is connected to an external vacuum pump.

[0018] This utility model provides a crease-forming device for cardboard box processing, which has the following beneficial effects:

[0019] 1. By setting up an adjustment component including vacuum suction cups, connecting tubes, and drive components, the vacuum suction cups contact the cardboard for adsorption. In conjunction with the transmission of the first motor and the first gear, the connecting tube and the vacuum suction cup on it are driven to rotate. The planar position and rotation angle of the cardboard can be freely adjusted to ensure that the creasing and die-cutting tools can cover any processing area of ​​the cardboard. This eliminates the blind spot limitations of traditional fixed workstations, making the processing work more flexible and efficient.

[0020] 2. By setting up a creasing assembly including a die-cutting knife, a creasing knife, a second cylinder, a first moving component, and a second moving component, the creasing knife presses down on the carton board to create crease lines, and the die-cutting knife presses down to perform the die-cutting operation. With the help of the first moving component that adjusts the horizontal position of the movable plate and the second moving component that drives the entire movable frame to move, the carton creasing and die-cutting processes are automated, improving production efficiency. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of a folding device for cardboard box processing provided by this utility model. Figure 1 ;

[0022] Figure 2 A schematic diagram of the adjustment component structure of a crease device for carton processing provided by this utility model;

[0023] Figure 3 A partial structural schematic diagram of a crease device for cardboard box processing provided by this utility model;

[0024] Figure 4 This utility model provides a folding device for carton processing. Figure 1 Enlarged structural diagram at point A in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base plate; 2. Fixing frame; 3. First cylinder; 4. Mounting frame; 5. Vacuum suction cup; 6. External pipe; 7. Rotary joint; 8. First motor; 9. First gear; 10. Movable frame; 11. Lead screw; 12. Second motor; 13. Movable plate; 14. Second cylinder; 15. First mounting plate; 16. Die-cutting blade; 17. Third motor; 18. Second mounting plate; 19. Indentation blade; 20. Fourth motor; 21. Second gear; 22. Rack; 23. Fixing plate; 24. Guide rod; 25. Connecting pipe. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0028] like Figures 1 to 4 As shown in the figure, a folding device for carton processing provided by this utility model includes a base plate 1. An adjustment component for adjusting the carton's orientation is provided in the middle of the base plate 1 to ensure that folding can be performed at any position on the carton board. The adjustment component includes a U-shaped mounting frame 4, a connecting pipe 25 rotating inside the bottom side of the mounting frame 4, a vacuum suction cup 5 fixed to the bottom end of the connecting pipe 25, a drive component for rotating the connecting pipe 25, and a control component for moving the mounting frame 4 up and down. The drive component includes a first motor 8 and a first gear 9 fixed to the bottom side of the mounting frame 4. The first gear 9 is fixedly connected to the top of the output shaft of the first motor 8, and a first gear 9 is also coaxially fixed to the outside of the connecting pipe 25. The two first gears 9 mesh to transmit power and control the rotation of the vacuum suction cup 5 and the carton board on it. The control component includes an L-shaped fixing frame 2 fixed to the top of the base plate 1, a first cylinder 3 fixed to the top of the fixing frame 2, and the mounting frame 4 fixed to the bottom end of the piston rod of the first cylinder 3.

[0029] The positioning component is used to adsorb and adjust the position and angle of the carton, and its vacuum suction cup 5 is used to adsorb the carton. When reorientation is required, the first motor 8 operates and drives the connecting pipe 25 through the meshing first gear 9 to achieve the rotation and reorientation of the carton. The first cylinder 3 is used to adjust the lifting and lowering of the mounting frame 4, driving the vacuum suction cup 5 to move up and down to achieve contact and separation with the carton board. At the same time, when the vacuum suction cup 5 is in contact with the carton board, it helps to ensure the stability of the processing.

[0030] The positioning component allows for free adjustment of the carton's planar position and rotation angle, ensuring that the creasing and die-cutting tools can cover any processing area of ​​the carton board. This eliminates the blind spot limitations of traditional fixed workstations, making processing more flexible and efficient.

[0031] More importantly, the system enhances production line adaptability, enabling rapid response simply by adjusting motor rotation parameters and cylinder stroke via programming. This integrated positional freedom control allows the same machine to efficiently complete a full range of embossing processes, from standard box types to customized packaging, maximizing equipment utilization while improving processing accuracy.

[0032] like Figure 1 and Figure 3 As shown, to achieve creasing and die-cutting of the cardboard, a creasing assembly is provided on one side of the top of the base plate 1. The creasing assembly includes a movable frame 10 with a U-shaped structure that is movable on the top of the base plate 1, two movable plates 13 on the movable frame 10, a creasing knife 19 at the bottom of one of the movable plates 13, a die-cutting knife 16 at the bottom of the other movable plate 13, a first moving component located inside the movable frame 10 for driving the two movable plates 13 to move horizontally synchronously, and a second moving component located on the top of the base plate 1 for driving the movable frame 10 to move horizontally. A rotary joint 7 is fixedly provided on the top of the connecting pipe 25. The fixed end of the rotary joint 7 is fixedly provided with an outer pipe 6 fixed inside the mounting frame 4. The rotating end of the rotary joint 7 is connected to the connecting pipe 25 to ensure that the vacuum suction cup 5 can maintain a stable suction force when rotating, so as to realize the free orientation of the cardboard. The creasing assembly also includes a first mounting plate 15 located at the bottom of the movable plate 13 and near the die-cutting blade 16, a second mounting plate 18 located at the bottom of the movable plate 13 and near the creasing blade 19, a third motor 17 fixed to one side of the first mounting plate 15, and two second cylinders 14 located at the top of the corresponding movable plate 13. The die-cutting blade 16 rotates inside the first mounting plate 15, and the central axis of the die-cutting blade 16 is fixedly connected to the output shaft of the third motor 17 to drive the die-cutting blade 16 to rotate. The creasing blade 19 rotates inside the second mounting plate 18 to maintain the free rotation of the creasing blade 19. The bottom end of the piston rod of the second cylinder 14 is fixedly connected to the top of the corresponding first mounting plate 15 and second mounting plate 18, respectively, for adjusting the lifting and lowering of the die-cutting blade 16 and the creasing blade 19.

[0033] When processing cardboard boxes, creasing is performed first, followed by die-cutting. Through the synergistic action of the creasing components, both creasing and die-cutting are automated, improving production efficiency. Follow these steps:

[0034] Creasing process: The second cylinder 14 drives the creasing knife 19 to press down and contact the carton board. The movement of the creasing knife 19 presses out crease lines on the carton board, and the creasing operation of all crease positions is completed in sequence.

[0035] After the embossing is completed, the die-cutting process is carried out: the second cylinder 14 drives the embossing knife 19 to return to its original position, the second cylinder 14 drives the die-cutting knife 16 to press down, and at the same time the third motor 17 drives the die-cutting knife 16 to rotate, and the die-cutting operation is completed in coordination with the movement of the die-cutting knife 16.

[0036] like Figure 1 , Figure 3 and Figure 4 As shown, to adjust the positions of the die-cutting blade 16 and the creasing blade 19, the first moving assembly includes a lead screw 11 rotating inside the movable frame 10 and a second motor 12 fixed to one end of the movable frame 10. The end of the lead screw 11 near the second motor 12 passes through the movable frame 10 and is fixedly connected to the output shaft of the second motor 12. The movable plates 13 are all threadedly connected to the lead screw 11, so that the horizontal movement of the movable plates 13 can be achieved by rotating the lead screw 11. The second moving assembly includes a rack 22 fixed to one end of the movable frame 10, a fourth motor 20 fixed to the top of the base plate 1 and located on one side of the rack 22, and a second gear 21 fixed to the top of the output shaft of the fourth motor 20 and meshing with the rack 22, so that the movement of the rack 22 drives the movable frame 10 and the movable plates 13 on it to move horizontally.

[0037] The first moving component is used to adjust the horizontal position of the movable plate 13. When the second motor 12 drives the lead screw 11 to rotate, the two movable plates 13 move synchronously to adjust the position of the die-cutting knife 16 and the creasing knife 19 to perform creasing processing on the carton board at different positions.

[0038] The second moving component is used to drive the movable frame 10 to move as a whole. The fourth motor 20 drives the movable frame 10 to slide along the guide rod 24 through gear and rack transmission. The distance between the die-cutting knife 16 and the creasing knife 19 and the carton board can be adjusted by the moving movable frame 10, so that the creasing knife 19 and the die-cutting knife 16 can process along the length direction of the carton board.

[0039] like Figure 1 As shown, guide rods 24 are slidably connected inside both ends of the movable frame 10. The guide rods 24 are fixed to the top of the base plate 1 by the fixing plate 23. When the movable frame 10 moves, it slides on the guide rods 24 to ensure the stability of the movable frame 10. A limiting rod located on one side of the lead screw 11 is fixed inside the movable frame 10. The movable plates 13 are all slidably connected with the limiting rod. When the movable plates 13 move, they slide outside the limiting rod.

[0040] like Figure 2 As shown, a connecting hose is fixed at the top of the outer tube 6. The connecting hose is connected to an external vacuum pump. The vacuum suction cup 5 is connected to the vacuum pump through the connecting tube 25, the outer tube 6 and the hose. When the vacuum cup is used for object adsorption, the object is adsorbed by drawing a vacuum.

[0041] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:

[0042] The cardboard to be processed is positioned on the base plate 1. The first cylinder 3 is used to adjust the lifting and lowering of the mounting frame 4, so that the vacuum suction cup 5 presses against the cardboard to position it. When processing the cardboard, it is first creasing and then die-cutting.

[0043] The first moving component is used to adjust the horizontal position of the movable plate 13. When the second motor 12 drives the lead screw 11 to rotate, the two movable plates 13 move synchronously to adjust the position of the die-cutting knife 16 and the creasing knife 19 to perform crease processing on the carton board at different positions. The second moving component is used to drive the movable frame 10 to move as a whole. The fourth motor 20 drives the movable frame 10 to slide along the guide rod 24 through gear and rack transmission. The distance between the die-cutting knife 16 and the creasing knife 19 and the carton board can be adjusted by the moving movable frame 10, so that the creasing knife 19 and the die-cutting knife 16 can process along the length direction of the carton board.

[0044] Creasing process: The second cylinder 14 drives the creasing knife 19 to press down and contact the carton board. The movement of the creasing knife 19 presses out crease lines on the carton board, and the creasing operation of all crease positions is completed in sequence.

[0045] When reorientation is required, the first motor 8 operates and drives the connecting pipe 25 through the meshing first gear 9 to achieve rotational reorientation of the carton. The first cylinder 3 is used to adjust the lifting and lowering of the mounting frame 4, driving the vacuum suction cup 5 to move up and down to achieve contact and separation with the carton board. At the same time, when the vacuum suction cup 5 is in contact with the carton board, it helps to ensure the stability of its processing.

[0046] After creasing, die-cutting is performed: the second cylinder 14 drives the creasing blade 19 to return to its original position upwards, and the second cylinder 14 also drives the die-cutting blade 16 to press downwards. Simultaneously, the third motor 17 drives the die-cutting blade 16 to rotate, completing the die-cutting operation in coordination with the movement of the die-cutting blade 16. Through the synergistic effect of the creasing components, automated processing of carton creasing and die-cutting is achieved, improving production efficiency.

[0047] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A folding device for cardboard box processing, characterized in that, Includes a base plate (1), the center of which is provided with an adjustment component for adjusting the direction of the carton, and one side of the top of the base plate (1) is provided with an indentation component; The adjustment assembly includes a mounting frame (4), a connecting pipe (25) rotating inside the bottom side of the mounting frame (4), a vacuum suction cup (5) fixed at the bottom end of the connecting pipe (25), a drive assembly for driving the connecting pipe (25) to rotate, and a control assembly for driving the mounting frame (4) to move up and down. The indentation assembly includes a movable frame (10) movable on the top of the base plate (1), two movable plates (13) on the movable frame (10), an indentation knife (19) at the bottom of one of the movable plates (13), a die-cutting knife (16) at the bottom of the other movable plate (13), a first moving component located inside the movable frame (10) for driving the two movable plates (13) to move horizontally synchronously, and a second moving component located on the top of the base plate (1) for driving the movable frame (10) to move horizontally.

2. The folding device for cardboard box processing as described in claim 1, characterized in that, The top of the connecting pipe (25) is fixed with a rotary joint (7), and the fixed end of the rotary joint (7) is fixed with an outer pipe (6) fixed inside the mounting bracket (4).

3. A folding device for cardboard box processing as described in claim 2, characterized in that, The drive assembly includes a first motor (8) and a first gear (9) fixed on the bottom side of the mounting bracket (4). The first gear (9) is fixed on the top of the output shaft of the first motor (8) and on the outside of the connecting pipe (25), and the first gear (9) is meshed.

4. A crease-forming device for cardboard box processing as described in claim 3, characterized in that, The control assembly includes a fixed frame (2) fixed to the top of the base plate (1) and having an L-shaped structure, and a first cylinder (3) fixed to the top of the fixed frame (2). The mounting bracket (4) is fixed to the bottom end of the piston rod of the first cylinder (3).

5. A crease-forming device for cardboard box processing as described in claim 4, characterized in that, The indentation assembly also includes a first mounting plate (15) located at the bottom of the movable plate (13) and near the die-cutting blade (16), a second mounting plate (18) located at the bottom of the movable plate (13) and near the indentation blade (19), and a third motor (17) fixed to one side of the first mounting plate (15). The die-cutting blade (16) rotates inside the first mounting plate (15), and the central axis of the die-cutting blade (16) is fixedly connected to the output shaft of the third motor (17). The indentation blade (19) rotates inside the second mounting plate (18).

6. A crease-forming device for cardboard box processing as described in claim 5, characterized in that, The indentation assembly also includes two second cylinders (14) located on the top of the corresponding movable plate (13), with the bottom end of the piston rod of the second cylinder (14) fixedly connected to the top of the corresponding first mounting plate (15) and second mounting plate (18), respectively.

7. A crease-forming device for cardboard box processing as described in claim 1, characterized in that, The first moving component includes a lead screw (11) rotating inside the movable frame (10) and a second motor (12) fixed to one end of the movable frame (10). The end of the lead screw (11) near the second motor (12) passes through the movable frame (10) and is fixedly connected to the output shaft of the second motor (12). The movable plates (13) are all threaded onto the lead screw (11).

8. A crease-forming device for cardboard box processing as described in claim 1, characterized in that, The second moving component includes a rack (22) fixed to one end of the movable frame (10), a fourth motor (20) fixed to the top of the base plate (1) and located on one side of the rack (22), and a second gear (21) fixed to the top of the output shaft of the fourth motor (20) and meshing with the rack (22).

9. A crease-forming device for cardboard box processing as described in claim 8, characterized in that, The movable frame (10) has guide rods (24) slidably connected inside both ends, and the guide rods (24) are fixed to the top of the base plate (1) by fixing plate (23).

10. A crease-forming device for cardboard box processing as described in claim 2, characterized in that, The top end of the external pipe (6) is fixed with a connecting hose, which is connected to an external vacuum pump.