Corrugated board high-precision cutting device

By introducing a handle and mounting plate into the corrugated cardboard cutting device, the problem of cumbersome blade replacement is solved, enabling quick assembly and disassembly and precise cutting.

CN224223984UActive Publication Date: 2026-05-12ZHEJIANG LONGXIANG PACKING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG LONGXIANG PACKING CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing corrugated cardboard cutting equipment has a cumbersome blade replacement process, resulting in low production efficiency.

Method used

The design utilizes a pull handle to drive the mounting plate and movable rod, and through the cooperation of the insertion hole and guide plate, it enables quick disassembly and installation of the cutting blade, eliminating the need for tools.

Benefits of technology

It enables quick replacement of cutting blades, simplifies the operation process, and improves production efficiency and cutting accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of corrugated board processing, in particular to a corrugated board high-precision cutting device which comprises a working table, a second door-shaped supporting plate is fixedly connected to the top of the working table, and a second electric air cylinder is fixedly connected to the top of the second door-shaped supporting plate. A telescopic shaft of the second electric air cylinder penetrates through the top of the second door-shaped supporting plate and is welded to the top of the fixing base, a groove is formed in the fixing base, a cutting blade is inserted into the groove, multiple sets of inserting holes are formed in the side face of the cutting blade, a mounting frame is fixedly connected to the outer side of the fixing base, and multiple sets of movable rods are slidably connected into the mounting frame. The movable rods are jointly welded to the side face of the mounting plate, and a pull handle is welded to the side face, away from the movable rods, of the mounting plate. According to the utility model, by pulling the pull handle, the cutting blade can be quickly dismounted from or mounted in the fixed seat, so that the working efficiency is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard processing technology, and in particular to a high-precision cutting device for corrugated cardboard. Background Technology

[0002] Corrugated cardboard is a multi-layered laminate, consisting of at least one layer of corrugated core paper (commonly known as "corrugated sheet," "corrugated paperboard," "corrugated core," or "corrugated base paper") and one layer of cardboard (also known as "boxboard" or "boxboard"). It possesses high mechanical strength and can withstand impacts and drops during handling. The actual performance of corrugated cardboard depends on three factors: the characteristics of the core paper and the cardboard, and the structure of the carton itself. During processing, corrugated cardboard requires a cutting device to cut it into sections.

[0003] Regarding the existing patent CN221211873U, which discloses a corrugated cardboard cutting device, a base is included. A platform is fixedly connected to the outer wall of the base. A hydraulic rod is installed at the top of the base, and a cutting blade is movably installed at the output end of the hydraulic rod. A positioning mechanism is provided at the top of the platform, and a collecting mechanism is provided at the bottom of the base. The positioning mechanism includes a fixing plate, which is fixedly connected to the side wall of the base. This corrugated cardboard cutting device, by setting up a positioning mechanism, and by setting up a first screw and an inverted L-plate, can enable the inverted L-plate to perform a preliminary positioning function for corrugated cardboard of different widths under the power of a motor. By setting up a second screw and rollers, it can perform a secondary positioning function for corrugated cardboard of different widths, making the cutting of corrugated cardboard on the platform surface more precise, avoiding large errors in cutting due to tilting or warping of the corrugated cardboard, thereby improving the efficiency and stability of cutting success. Although the aforementioned patent can accurately cut corrugated cardboard, the device has a drawback: the cutting blades used in the cutting device are installed on the fixed base by bolts and nuts. When the cutting blades need to be replaced after a period of use, multiple sets of bolts and nuts need to be removed to replace the cutting blades. This makes the operation time-consuming and cumbersome, which is not conducive to the production progress. Utility Model Content

[0004] To overcome the problem that existing cutting blades are not easy to disassemble and replace quickly.

[0005] The technical solution of this utility model is as follows: a high-precision corrugated cardboard cutting device, including a worktable, a gate-shaped support plate two fixedly connected to the top of the worktable, an electric cylinder two fixedly connected to the top of the gate-shaped support plate two, the telescopic shaft of the electric cylinder two passing through the top of the gate-shaped support plate two and welded to the top of the fixed seat, a groove is provided inside the fixed seat, a cutting blade is inserted into the groove, multiple sets of insertion holes are provided on the side of the cutting blade, a mounting frame is fixedly connected to the outside of the fixed seat, multiple sets of movable rods are slidably connected inside the mounting frame, the multiple sets of movable rods are inserted into the multiple sets of insertion holes, the multiple sets of movable rods are welded together to the side of the mounting plate, a pull handle is welded to the side of the mounting plate away from the multiple sets of movable rods, a guide plate is fixedly connected to the outer wall of the multiple sets of movable rods, the guide plate is placed inside the mounting frame, a spring two is fixedly connected to the side of the guide plate, the other end of the spring two is welded to the side of the fixed seat, multiple sets of sliding holes are provided on the side of the fixed seat, the multiple sets of sliding holes are slidably connected to the multiple sets of movable rods.

[0006] Preferably, by pulling the handle, the mounting plate moves outward, allowing multiple sets of movable rods to move out of the multiple insertion holes of the cutting blade, thus removing the cutting blade from the groove of the fixing seat, achieving quick removal of the cutting blade. When a new cutting blade needs to be replaced, first pull the handle, causing the mounting plate to move outward. As the mounting plate moves, it moves multiple sets of movable rods outward, which in turn move the guide plate outward. This stretches and deforms multiple sets of springs on the guide plate, allowing the new cutting blade to be inserted into the groove of the fixing seat. Then, release the handle, and the guide plate moves back as the multiple sets of springs return to their original shape. This allows the guide plate to move multiple sets of movable rods back, enabling them to be inserted into the multiple insertion holes of the cutting blade, thus fixing the cutting blade in the fixing seat, achieving quick installation of the cutting blade. The entire process requires no tools and is very simple to operate, reducing replacement time and improving work efficiency.

[0007] Preferably, an operation panel is fixedly connected to the side of the workbench, and the operation panel is electrically connected to the electric cylinder.

[0008] Preferably, a fixed cylinder is welded to the inner side of the worktable, and a spring is fixedly connected inside the fixed cylinder. The other end of the spring is fixedly connected to the side of the limiting block. A sliding rod is welded to the side of the limiting block away from the spring. The other end of the sliding rod is welded to the side of the wedge-shaped limiting plate. Two sets of guide rods are fixedly connected to the side of the wedge-shaped limiting plate, and the two sets of guide rods pass through the side wall of the worktable.

[0009] Preferably, the top of the workbench is fixedly connected to two sets of portal-shaped support plates, and the top of each set of portal-shaped support plates is fixedly connected to an electric cylinder. The two sets of electric cylinders are electrically connected to the operation panel. The telescopic shaft of the electric cylinder is fixedly connected to a pressure plate, and the top of the pressure plate is fixedly connected to two sets of guide rods. The two sets of guide rods pass through the top of the portal-shaped support plates.

[0010] Preferably, the top of the fixed base is fixedly connected to two sets of guide rods three, which pass through the top of the portal-shaped support plate two. Guide blocks are fixedly connected to both sides of the guide plate, and guide grooves are opened on both sides of the mounting frame. The guide blocks are slidably connected to the guide grooves.

[0011] Preferably, a scale is fixedly connected to the outside of the worktable, and a pointer is provided above the scale.

[0012] Preferably, a first conveyor belt is installed inside the workbench, a motor is installed outside the first conveyor belt, the output shaft of the motor is fixedly connected to a pulley assembly, a driven shaft is fixedly connected inside the pulley assembly, and a second conveyor belt is installed outside the driven shaft.

[0013] The beneficial effects of this utility model are:

[0014] 1. This high-precision corrugated cardboard cutting device, by pulling a handle, moves the mounting plate outward, allowing multiple sets of movable rods to move out of the multiple insertion holes of the cutting blade, thus removing the cutting blade from the groove of the fixing seat, achieving the effect of quick blade removal. When a new cutting blade needs to be replaced, first pull the handle, causing the mounting plate to move outward. As the mounting plate moves, it moves multiple sets of movable rods outward, which in turn move the guide plate outward. This stretches and deforms multiple sets of springs on the guide plate, allowing the new cutting blade to be inserted into the groove of the fixing seat. Then, release the handle, and the multiple sets of springs return to their original deformation state, causing the guide plate to move back, allowing the multiple sets of movable rods to be inserted into the multiple insertion holes of the cutting blade, thus fixing the cutting blade in the fixing seat, achieving the effect of quick blade installation. The entire process requires no tools and is very simple to operate, reducing replacement time and improving work efficiency.

[0015] 2. This high-precision corrugated cardboard cutting device, by setting a scale and a pointer, allows the pointer to move on the scale, thereby controlling the length of the corrugated cardboard to be cut, thus improving the cutting accuracy of the corrugated cardboard.

[0016] 3. This high-precision corrugated cardboard cutting device, by setting a limiting mechanism, when the corrugated cardboard is placed on the first conveyor belt, is limited by two sets of wedge-shaped limiting plates, which can prevent the corrugated cardboard from shifting. After the wedge-shaped limiting plates are subjected to force, the contraction of the first spring in the fixed cylinder allows the wedge-shaped limiting plates to resist and limit the corrugated cardboard.

[0017] 4. This high-precision corrugated cardboard cutting device, by setting up a clamping mechanism, operates two sets of electric cylinders, so that the two sets of electric cylinders simultaneously drive their telescopic shafts to move the two sets of pressure plates downward, thus fixing the corrugated cardboard and facilitating the cutting operation.

[0018] 5. This high-precision corrugated cardboard cutting device, by setting up a cutting component and operating an electric cylinder two, causes the electric cylinder two to drive the telescopic shaft to move the fixed seat downward. The fixed seat is equipped with a cutting blade, so that the fixed seat can drive the cutting blade downward, thereby cutting the corrugated cardboard below, thus achieving the effect of cutting corrugated cardboard. Attached Figure Description

[0019] Figure 1 The image shown is a three-dimensional front view of a high-precision corrugated cardboard cutting device according to this utility model.

[0020] Figure 2 The diagram shows the structure of the limiting mechanism of a high-precision corrugated cardboard cutting device according to this utility model.

[0021] Figure 3 The diagram shown is a structural schematic of the pressing mechanism of a high-precision corrugated cardboard cutting device according to this utility model.

[0022] Figure 4 The diagram shown is a structural schematic of the cutting mechanism of a high-precision corrugated cardboard cutting device according to this utility model.

[0023] Figure 5 The diagram shown is an exploded view of the quick assembly / disassembly mechanism of a high-precision corrugated cardboard cutting device according to this utility model.

[0024] Figure 6 This invention relates to a high-precision cutting device for corrugated cardboard. Figure 5 Enlarged view of point A in the middle;

[0025] Figure 7 The image shown is a top-view perspective of the three-dimensional structure of a high-precision corrugated cardboard cutting device according to this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Control panel; 3. Fixed cylinder; 4. Spring 1; 5. Limiting block; 6. Slide rod; 7. Wedge-shaped limiting plate; 8. Guide rod 1; 9. Portal support plate 1; 10. Electric cylinder 1; 11. Pressure plate; 12. Guide rod 2; 13. Portal support plate 2; 14. Electric cylinder 2; 15. Fixed seat; 16. Guide rod 3; 17. Groove; 18. Cutting blade; 19. Insertion hole; 20. Mounting bracket; 21. Movable rod; 22. Mounting plate; 23. Pull handle; 24. Guide plate; 25. Spring 2; 26. Guide block; 27. Guide groove; 28. Sliding hole; 29. ​​Scale; 30. Pointer; 31. Conveyor belt 1; 32. Motor; 33. Pulley assembly; 34. Conveyor belt 2. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Please see Figures 1-7 This utility model provides an embodiment of a high-precision corrugated cardboard cutting device, including a workbench 1. A portal-shaped support plate 13 is fixedly connected to the top of the workbench 1. An electric cylinder 14 is fixedly connected to the top of the portal-shaped support plate 13. The telescopic shaft of the electric cylinder 14 passes through the top of the portal-shaped support plate 13 and is welded to the top of a fixed seat 15. A groove 17 is provided inside the fixed seat 15, and a cutting blade 18 is inserted into the groove 17. Multiple sets of insertion holes 19 are provided on the side of the cutting blade 18. A mounting frame 20 is fixedly connected to the outside of the fixed seat 15. Multiple sets of movable rods 21 are slidably connected inside the mounting frame 20. The multiple sets of movable rods 21 are inserted into the multiple sets of insertion holes 19. The multiple sets of movable rods 21 are welded together to the side of a mounting plate 22. A pull handle 23 is welded to the side of the mounting plate 22 away from the multiple sets of movable rods 21. A guide plate 24 is fixedly connected to the outer wall of the multiple sets of movable rods 21. The guide plate 24 is placed inside the mounting frame 20. A spring 25 is fixedly connected to the side of the fixed base 15. The other end of the spring 25 is welded to the side of the fixed base 15. The side of the fixed base 15 has multiple sets of sliding holes 28, which are slidably connected to multiple sets of movable rods 21. A portal-shaped support plate 13 is used to install an electric cylinder 14. The electric cylinder 14 drives the fixed base 15 to move downward through a telescopic shaft. The fixed base 15 is used to install a cutting blade 18, which is used to cut corrugated cardboard. Multiple sets of insertion holes 19 allow multiple sets of movable rods 21 to be inserted into them. A mounting bracket 20 allows multiple sets of movable rods 21 to slide inside it. A groove 17 allows the cutting blade 18 to be inserted into it. A mounting plate 22 serves to fix multiple sets of movable rods 21 and a handle 23. The handle 23 is for easy pulling of the mounting plate 22. A guide plate 24 guides the movement of multiple sets of movable rods 21. The spring 25 provides deformation force for the movement of the guide plate 24. Multiple sets of sliding holes 28 allow multiple sets of movable rods 21 to slide within them.

[0029] Please see Figure 1 In this embodiment, an operation panel 2 is fixedly connected to the side of the workbench 1, and the operation panel 2 is electrically connected to the electric cylinder 14. A scale 29 is fixedly connected to the outside of the workbench 1, and a pointer 30 is provided above the scale 29. The operation panel 2 is used to operate the start and stop of the two sets of electric cylinders 10, electric cylinder 14 and motor 32. The scale 29 is used to measure the length of the output corrugated cardboard, and the pointer 30 is used to point to the edge of the corrugated cardboard, so as to achieve the effect of accurately measuring the length of the corrugated cardboard to be cut.

[0030] Please see Figure 2 In this embodiment, a fixed cylinder 3 is welded to the inner side of the workbench 1. A spring 4 is fixedly connected inside the fixed cylinder 3. The other end of the spring 4 is fixedly connected to the side of the limiting block 5. A sliding rod 6 is welded to the side of the limiting block 5 away from the spring 4. The other end of the sliding rod 6 is welded to the side of the wedge-shaped limiting plate 7. Two sets of guide rods 8 are fixedly connected to the side of the wedge-shaped limiting plate 7. The two sets of guide rods 8 pass through the side wall of the workbench 1. The fixed cylinder 3 allows the limiting block 5 to slide within it. The spring 4 is used to provide deformation force, so that the limiting block 5 can move back after moving. The sliding rod 6 plays the role of driving the limiting block 5 to move. The wedge-shaped limiting plate 7 plays the role of correcting the position of the corrugated cardboard and preventing the corrugated cardboard from shifting. The two sets of guide rods 8 are used to guide the movement of the wedge-shaped limiting plate 7.

[0031] Please see Figure 3 In this embodiment, two sets of portal-shaped support plates 9 are fixedly connected to the top of the workbench 1. Each set of portal-shaped support plates 9 is fixedly connected to the top of an electric cylinder 10. The two sets of electric cylinders 10 are electrically connected to the operation panel 2. The telescopic shaft of the electric cylinder 10 is fixedly connected to a pressure plate 11. The top of the pressure plate 11 is fixedly connected to two sets of guide rods 12. The two sets of guide rods 12 pass through the top of the portal-shaped support plates 9. The two sets of portal-shaped support plates 9 are used to fix the two sets of electric cylinders 10. The two sets of electric cylinders 10 drive the pressure plate 11 to move downward through their corresponding telescopic shafts, so that the two sets of pressure plates 11 can press the corrugated cardboard, which is convenient for cutting. The two sets of guide rods 12 serve to guide the movement of the pressure plate 11.

[0032] Please see Figure 4 , Figure 5 , Figure 6In this embodiment, two sets of guide rods 16 are fixedly connected to the top of the fixed base 15. The two sets of guide rods 16 pass through the top of the portal support plate 13. Guide blocks 26 are fixedly connected to both sides of the guide plate 24. Guide grooves 27 are opened on both sides of the mounting bracket 20. The guide blocks 26 are slidably connected to the guide grooves 27. The two sets of guide rods 16 are used to guide the fixed base 15 to move downward. The two sets of guide blocks 26 are used to guide the guide plate 24. The two sets of guide grooves 27 allow the two sets of guide blocks 26 to slide within them.

[0033] Please see Figure 7 In this embodiment, a first conveyor belt 31 is installed inside the workbench 1, and a motor 32 is installed outside the first conveyor belt 31. The output shaft of the motor 32 is fixedly connected to a pulley group 33. A driven shaft is fixedly connected inside the pulley group 33, and a second conveyor belt 34 is installed outside the driven shaft. The first conveyor belt 31 and the second conveyor belt 34 are used to transport corrugated cardboard. The motor 32 is used to drive the first conveyor belt 31 and the second conveyor belt 34. The pulley group 33 connects the transmission shafts of the first conveyor belt 31 and the second conveyor belt 34 together, so that the first conveyor belt 31 and the second conveyor belt 34 can be transported simultaneously.

[0034] During operation, pulling the handle 23 moves the mounting plate 22 outward, causing it to move multiple sets of movable rods 21 out of the multiple sets of insertion holes 19 on the cutting blade 18. This allows the cutting blade 18 to be removed from the groove 17 of the fixing seat 15, achieving quick removal of the cutting blade 18. When replacing the cutting blade 18, first pull the handle 23, causing it to move the mounting plate 22 outward. As the mounting plate 22 moves, it moves the multiple sets of movable rods 21 outward, which in turn moves the guide plate 24 outward. The guide plate 24 stretches and deforms multiple sets of springs 25. At this time, the new cutting blade 18 is inserted into the groove 17 of the fixed seat 15. Then, the pull handle 23 is released. Under the deformation and reset of multiple sets of springs 25, the guide plate 24 is driven to move back. This allows the guide plate 24 to drive multiple sets of movable rods 21 to move back, so that multiple sets of movable rods 21 can be inserted into multiple sets of insertion holes 19 opened in the cutting blade 18, thereby fixing the cutting blade 18 in the fixed seat 15. This achieves the effect of quickly installing the cutting blade 18. The whole process does not require the use of tools and is very simple to operate, which reduces replacement time and improves work efficiency.

[0035] Through the above steps, by pulling the handle 23, the cutting blade 18 can be quickly disassembled or installed from the fixed base 15, thereby further improving work efficiency and solving the problem that the existing cutting blade 18 is not easy to disassemble and replace quickly.

Claims

1. A high-precision cutting device for corrugated cardboard, comprising a worktable (1), characterized in that: A portal-shaped support plate (13) is fixedly connected to the top of the workbench (1). An electric cylinder (14) is fixedly connected to the top of the portal-shaped support plate (13). The telescopic shaft of the electric cylinder (14) passes through the top of the portal-shaped support plate (13) and is welded to the top of the fixed seat (15). A groove (17) is provided inside the fixed seat (15). A cutting blade (18) is inserted into the groove (17). Multiple sets of insertion holes (19) are provided on the side of the cutting blade (18). A mounting bracket (20) is fixedly connected to the outside of the fixed seat (15). Multiple sets of movable rods (21) are slidably connected inside the mounting bracket (20). (21) is inserted into multiple sets of sockets (19), and multiple sets of movable rods (21) are welded together on the side of the mounting plate (22). A handle (23) is welded to the side of the mounting plate (22) away from the multiple sets of movable rods (21). A guide plate (24) is fixedly connected to the outer wall of the multiple sets of movable rods (21). The guide plate (24) is placed inside the mounting frame (20). A second spring (25) is fixedly connected to the side of the guide plate (24). The other end of the second spring (25) is welded to the side of the fixed seat (15). Multiple sets of sliding holes (28) are opened on the side of the fixed seat (15). The multiple sets of sliding holes (28) are slidably connected to the multiple sets of movable rods (21).

2. The high-precision cutting device for corrugated cardboard according to claim 1, characterized in that: An operation panel (2) is fixedly connected to the side of the workbench (1), and the operation panel (2) is electrically connected to the electric cylinder (14).

3. The high-precision cutting device for corrugated cardboard according to claim 1, characterized in that: A fixed cylinder (3) is welded to the inner side of the workbench (1). A spring (4) is fixedly connected inside the fixed cylinder (3). The other end of the spring (4) is fixedly connected to the side of the limiting block (5). A sliding rod (6) is welded to the side of the limiting block (5) away from the spring (4). The other end of the sliding rod (6) is welded to the side of the wedge-shaped limiting plate (7). Two sets of guide rods (8) are fixedly connected to the side of the wedge-shaped limiting plate (7). The two sets of guide rods (8) pass through the side wall of the workbench (1).

4. The high-precision cutting device for corrugated cardboard according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to two sets of portal-shaped support plates (9). Each set of portal-shaped support plates (9) is fixedly connected to an electric cylinder (10). The two sets of electric cylinders (10) are electrically connected to the operation panel (2). The telescopic shaft of the electric cylinder (10) is fixedly connected to a pressure plate (11). The top of the pressure plate (11) is fixedly connected to two sets of guide rods (12). The two sets of guide rods (12) pass through the top of the portal-shaped support plate (9).

5. The high-precision cutting device for corrugated cardboard according to claim 1, characterized in that: Two sets of guide rods (16) are fixedly connected to the top of the fixed base (15). The two sets of guide rods (16) pass through the top of the portal support plate (13). Guide blocks (26) are fixedly connected to both sides of the guide plate (24). Guide grooves (27) are opened on both sides of the mounting bracket (20). The guide blocks (26) and guide grooves (27) are slidably connected.

6. The high-precision cutting device for corrugated cardboard according to claim 1, characterized in that: A scale (29) is fixedly connected to the outside of the workbench (1), and a pointer (30) is set above the scale (29).

7. The high-precision cutting device for corrugated cardboard according to claim 1, characterized in that: The workbench (1) is equipped with a first conveyor belt (31), and a motor (32) is installed outside the first conveyor belt (31). The output shaft of the motor (32) is fixedly connected to a pulley group (33). The pulley group (33) is fixedly connected to a driven shaft, and a second conveyor belt (34) is installed outside the driven shaft.