Packaging paperboard punching device

By using a lifting unit and a motor-driven blade rotation cutting method, the problem of uneven back of the cardboard holes is solved, achieving high-quality and flexible punching results suitable for various cardboard needs.

CN223701005UActive Publication Date: 2025-12-23CHENGDU YUTO PRINTING CO LTD
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Patent Information

Application Number
CN202423145162.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-12-23
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing technologies use a single method for punching paperboard, resulting in uneven back surfaces of the holes, high costs, unsuitability for small-batch production, and unsuitability for paperboards with high requirements on both sides.

Method used

The device uses a lifting unit to move the handle and blade up and down, combined with a motor to drive the handle to rotate, to cut holes in the cardboard, ensuring that the back and front of the holes are flat, and adapts to different punching positions through multi-axis movement.

Benefits of technology

It achieves high-quality holes and a flat back surface, adapts to different positional requirements, reduces costs, and is suitable for small-batch production and high-quality cardboard.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of packaging paperboard processing, and particularly discloses a packaging paperboard punching device which comprises a workbench and a punching mechanism, a machine frame is arranged on the workbench, the punching mechanism is installed on the machine frame, the punching mechanism comprises a lifting unit, a motor, a cutter handle and a blade, the lifting unit is connected with the machine frame, and the motor is connected with the cutter handle. The motor is connected with the telescopic end of the lifting unit, the cutter handle is connected with the output end of the motor, the blades are connected with the cutter handle, the number of the blades is multiple, and the blades are distributed in the circumferential direction of the cutter handle at intervals. The punching device can ensure that the back and the front of a hole in a paperboard are flat, and the punching quality is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to packing paperboard processing technical field, concretely relates to a packing paperboard punching device. BACKGROUND

[0002] At present, many packing cartons, packing cartons in the process of production and manufacturing, in order to use demand or in order to play the role of ventilation and heat dissipation, usually punch on packing paperboard.

[0003] In the prior art, when punching the paperboard, a stamping mechanism is usually used for punching, and the stamping mechanism in the prior art is usually fixed at a position, and the paperboard is placed below the stamping head of the stamping mechanism, and the stamping head on the stamping mechanism is quickly pressed downward to form a hole in the paperboard.

[0004] In the prior art, the position of the paperboard punching is relatively single, and cannot meet the needs of paperboard with different punching positions; in addition, the stamping mechanism in the prior art punches the paperboard through the stamping head, and the stamping process requires a special die, resulting in high cost and being not suitable for small-batch production; and the back of the hole obtained by stamping punching processing protrudes from the plane of the paperboard, resulting in uneven back of the hole of the paperboard after punching processing, which affects the quality and appearance of the manufactured packing box in the later period, and is not suitable for paperboard with high requirements on both sides. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a kind of packing paperboard punching device, it is in to guarantee the hole back and front of paperboard flat, improve the quality of punching.

[0006] The utility model realizes by the following technical scheme: a kind of packing paperboard punching device, including workbench and punching mechanism, the workbench is equipped with rack, the punching mechanism is installed on the rack, the punching mechanism includes lifting unit, motor, tool shank and blade, the lifting unit is connected with the rack, the motor is connected with the telescopic end of the lifting unit, the tool shank is connected with the output end of the motor, the blade is connected with the tool shank, the blade is equipped with multiple, multiple the blade is spaced distribution along the circumference of the tool shank.

[0007] Compared with prior art, the present scheme has the following advantages and beneficial effects:

[0008] In the punching mechanism in the present scheme, the lifting unit can drive the tool shank and the blade to move up and down, and the motor can drive the tool shank and the blade to rotate, so that in the actual use process, the lifting unit drives the blade to move downward and penetrate the paperboard, and then the motor is started to drive the tool shank and the blade to rotate, so as to rotate and cut a hole in the paperboard.

[0009] Different from the traditional punching mode, the paperboard is inserted into the blade first, and then the paperboard to be punched is cut off in the process of rotating the blade, so that the hole formed on the paperboard is flat, the hole quality is high, and the convex shape is not formed on the back of the paperboard as in the prior art punching. The present scheme can ensure that the back and front of the hole on the paperboard are flat, and effectively improve the punching quality.

[0010] Further, the two sides and the bottom of the blade are provided with cutting edges.

[0011] Beneficial effect: This arrangement can more easily cut the paperboard to be punched, and the cut hole is more flat.

[0012] Further, the output end of the motor is coaxially connected with a connecting block, and the blade handle is detachably connected with the connecting block.

[0013] Beneficial effect: In the present scheme, the output end of the motor is connected with the connecting block, which is more convenient for the installation of the blade handle.

[0014] Further, the telescopic end of the lifting unit is connected with a mounting plate, two through holes are formed in the mounting plate, the two through holes are located on the two sides of the lifting unit, guide rods are coaxially and slidingly fitted in the two through holes, the top end of the guide rod is connected with a limiting plate, the limiting plate can limit the top end of the guide rod from sliding out of the through hole; a spring is arranged between the bottom of the guide rod and the mounting plate, and the spring is sleeved outside the guide rod.

[0015] Beneficial effect: In the present scheme, the telescopic end of the lifting unit is connected with the mounting plate, and the guide rods are coaxially and slidingly fitted in the through holes of the mounting plate. During the process of inserting the blade into the paperboard to be punched by moving the blade handle downward, the bottom end of the guide rod can gradually contact and press the paperboard under the action of the spring, thereby fixing the paperboard. Thus, the stability of the paperboard position can be maintained during the punching process, and the punching quality is improved.

[0016] Further, the bottom end of the guide rod is connected with a pressing plate, and the two ends of the spring are respectively abutted or connected with the pressing plate and the mounting plate. In the natural state of the spring, the bottom of the pressing plate is located below the blade.

[0017] Beneficial effect: The arrangement of the pressing plate in the present scheme can increase the contact area with the paperboard, and the pressing effect on the paperboard is better.

[0018] Further, the rack comprises a cross beam and two vertical beams, and the two ends of the cross beam are respectively connected with the top ends of the two vertical beams.

[0019] The lifting unit is connected with a cross beam slider, which is horizontally slidably connected with the cross beam.

[0020] The workbench is connected with two symmetrically arranged slide rails, and the bottom end of each of the two vertical beams is connected with a vertical beam slider, which is horizontally slidably connected with the two slide rails.

[0021] Beneficial effects: In the scheme, the rack includes a cross beam and two vertical beams, which form a door-shaped structure. The cross beam is used to mount a punching mechanism, and the vertical beams can drive the cross beam to slide horizontally along the X-axis. The punching mechanism can slide along the Y-axis on the cross beam, and the tool shank can slide along the Z-axis under the action of the lifting unit. Thus, the tool shank and the blade in the scheme can realize three-axis movement along the X-axis, the Y-axis and the Z-axis, thereby meeting the needs of punching paperboards with different punching positions.

[0022] Further, the top of the workbench and on both sides of the slide rails are provided with sliding grooves, and the vertical beam sliders are rotatably connected with rollers on both sides.

[0023] Beneficial effects: In the scheme, the sliding grooves and the rollers can reduce the friction of the vertical beams, thereby making the movement of the vertical beams more stable and smooth.

[0024] Further, the cross beam and the workbench are respectively provided with driving units for driving the movement of the cross beam slider and the vertical beam slider.

[0025] Beneficial effects: In the scheme, the driving units can automatically control the movement of the cross beam slider and the vertical beam slider along the X-axis and the Y-axis, thereby achieving the purpose of automatic control.

[0026] Further, the workbench is hollow, the top of the workbench is provided with an opening, the workbench top is connected with a punching plate, the punching plate covers the opening of the workbench, a plurality of punching holes are formed on the punching plate, and the plurality of punching holes are arranged in a rectangular array, and the diameter of the plurality of punching holes is greater than the diameter formed by the plurality of blades.

[0027] Beneficial effects: In the scheme, the plurality of punching holes on the punching plate can be used to extend the blades into the punching holes when punching the paperboard, and the waste generated during the punching process can fall into the workbench from the punching holes, thereby facilitating the collection of the waste. The punching holes can avoid direct contact between the blades and the workbench, thereby protecting the blades and the workbench.

[0028] In addition, the stamping holes are provided in the present scheme, so that the paperboard with different punching position requirements can be met, and the plurality of stamping holes can be applied to the paperboard with different punching position requirements, and can be placed at different positions, and only need to be placed on the stamping holes at any position on the punching plate, so that the punching position can be flexibly selected according to different requirements when the paperboard is punched.

[0029] Further, one side of the workbench is also provided with an opening, and a slag receiving box is arranged in the workbench, and the slag receiving box can be put into or taken out of the workbench through the opening on one side of the workbench.

[0030] Beneficial effects: the slag receiving box arranged in the present scheme can be placed in the workbench to collect the waste falling from the stamping holes, and the collection and treatment are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings described herein are used to provide further understanding of the embodiments of the present application, constitute a part of the present application, and do not constitute a limitation on the embodiments of the present application. In the drawings:

[0032] Figure 1 It is a perspective view of the packaging paperboard punching device embodiment of the present application;

[0033] Figure 2 It is a perspective view of the punching mechanism in the packaging paperboard punching device embodiment of the present application;

[0034] Figure 3 It is Figure 2 It is a local enlarged view of B;

[0035] Figure 4 It is a side view of the packaging paperboard punching device embodiment of the present application;

[0036] Figure 5 It is Figure 4 It is a local enlarged view of A.

[0037] Markings in the drawings and corresponding names of parts:

[0038] Workbench 1, punching plate 2, fastening bolt 201, stamping hole 202, slag receiving box 3, handle 301, punching mechanism 4, lifting unit 401, motor 402, connecting block 403, tool shank 404, tool blade 405, vertical beam 5, vertical beam sliding block 501, horizontal beam 6, horizontal beam sliding block 601, sliding rail 7, sliding groove 701, roller 8, mounting plate 9, guide rod 10, limiting plate 11, spring 12, pressing plate 13. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below in combination with examples and drawings, the schematic implementation mode and the description thereof of the utility model are only used to explain the utility model, and do not serve as the limitation of the utility model.

[0040] Example 1

[0041] As Figure 1 shown, the utility model provides a kind of packaging paperboard punching device, including workbench 1 and punching mechanism 4, workbench 1 is equipped with rack, and punching mechanism 4 is installed on rack.

[0042] Combining Figure 2 and Figure 3 shown, punching mechanism 4 in the embodiment includes lifting unit 401, motor 402, tool holder 404 and blade 405, lifting unit 401 is connected with rack, motor 402 is connected with the telescopic end of lifting unit 401, tool holder 404 is connected with the output end of motor 402, and blade 405 is connected with tool holder 404, as Figure 3 shown, blade 405 is equipped with multiple, multiple blade 405 is evenly distributed along the circumferential direction of tool holder 404, and the two sides and bottom of blade 405 are all equipped with cutting edge.

[0043] As Figure 2 shown, the output end of motor 402 is coaxially connected with connecting block 403, connecting block 403 is connected with the output end of motor 402 through shaft coupling or pin, tool holder 404 is detachably connected with connecting block 403, and the connecting mode of tool holder 404 and connecting block 403 is not specifically limited, in the embodiment, tool holder 404 and connecting block 403 can be connected in the mode of screw thread connection, tool holder 404 and connecting block 403 are detachably connected, so that multiple blade 405 can be made in advance according to the diameter size to be punched, and the tool holder 404 of corresponding model can be replaced according to different punching aperture requirements when using, so that it is convenient and flexible to use.

[0044] Lifting unit 401 is oil cylinder or air cylinder, in the embodiment, lifting unit 401 selects oil cylinder, and the telescopic end of lifting unit 401 is connected with mounting plate 9, mounting plate 9 is connected with the telescopic end of lifting unit 401 through flange or other mode, which is not specifically limited, and the shell end of motor 402 is connected with mounting plate 9 through flange.

[0045] Specific implementation process is as follows:

[0046] Place the cardboard to be punched on the workbench 1. The workbench 1 can be equipped with a clamp for pressing the cardboard or can be fixed by other means, so that the position to be punched on the cardboard is below multiple blades 405. Then, the lifting unit 401 drives the knife handle 404 to move downward until the bottom of the blades 405 passes through the bottom of the cardboard. Finally, the motor 402 is started to rotate, so that the knife handle 404 and the blades 405 on the knife handle 404 rotate, thereby cutting the hole structure in the cardboard at the position to be punched, thus completing the purpose of punching holes in the cardboard.

[0047] Example 2

[0048] Combination Figure 2 As shown, the difference between this embodiment and Embodiment 1 is that: two through holes are provided on the mounting plate 9, located on both sides of the lifting unit 401. Guide rods 10 are coaxially slidably fitted in the two through holes. The top end of the guide rods 10 is connected to a limiting plate 11. In this embodiment, the limiting plate 11 is a circular plate, and the diameter of the limiting plate 11 is larger than the diameter of the through holes. The limiting plate 11 can restrict the top end of the guide rod 10 from sliding out of the through holes. A spring 12 is provided between the bottom of the guide rod 10 and the mounting plate 9. The spring 12 is sleeved on the guide rod 10. Outside the guide rod 10, in this embodiment, a pressure plate 13 is connected to the bottom end of the guide rod 10. The pressure plate 13 is threadedly connected to the guide rod 10. The two ends of the spring 12 abut against or connect to the pressure plate 13 and the mounting plate 9, respectively. In the natural state (i.e., when the spring 12 is compressed by external force and the pressure plate 13 is not in contact with the cardboard), the bottom of the pressure plate 13 is located below the blade 405. This allows the pressure plate 13 to contact the cardboard before the blade 405 penetrates it, thus limiting the cardboard.

[0049] In this way, as the lifting unit 401 moves the knife handle 404 and the blade 405 downward, when the pressure plate 13 contacts the cardboard, as the lifting unit 401 continues to move the knife handle 404 and the blade 405 downward, the mounting plate 9 and the guide rod 10 will generate relative movement. The mounting plate 9 will slide downward along the guide rod 10 and compress the spring 12, so that the pressure plate 13 presses the cardboard. In this way, when punching holes in the pressure plate 13 later, it can play a limiting role in the pressure plate 13, improve the limiting and fixing effect of the pressure plate 13, and make the punching effect better.

[0050] Example 3

[0051] The difference between this embodiment and Embodiment 1 is that: Figure 1 As shown, the frame includes a crossbeam 6 and two vertical beams 5. The two ends of the crossbeam 6 are respectively connected to the top ends of the two vertical beams 5. In this embodiment, the crossbeam 6 and the vertical beams 5 are welded and fixed.

[0052] A horizontal beam slider 601 is connected to the lifting unit 401, and the horizontal beam slider 601 slides horizontally with the horizontal beam 6. Two symmetrically arranged slide rails 7 are connected to the worktable 1, and vertical beam sliders 501 are connected to the bottom ends of the two vertical beams 5, respectively, and the two vertical beam sliders 501 slide horizontally with the two slide rails 7. This allows the knife handle 404 to slide on the X and Y axes, and to move on the Z axis under the action of the lifting unit 401, thus realizing the movement of the knife handle 404 and the blade 405 on the knife handle 404 on the X, Y, and Z axes, which can adapt to the cardboard punching requirements with different punching positions.

[0053] Combination Figure 4 and Figure 5 As shown, the top of the workbench 1 and both sides of the slide rail 7 are provided with slide grooves 701. Rollers 8 are rotatably connected to both sides of the vertical beam slider 501 through a rotating shaft. The rollers 8 on both sides of the vertical beam slider 501 are located in the slide grooves 701 on both sides of the slide rail 7. In this way, the rollers 8 can improve the stability and smoothness of the vertical beam slider 501 movement as it slides along the slide rail 7.

[0054] Example 4

[0055] The difference between this embodiment and embodiment 3 is that the crossbeam 6 and the worktable 1 are respectively equipped with drive units for moving the crossbeam slider 601 and the vertical beam slider 501. This drive unit can adopt the structure of a lead screw pair and a lead screw motor drive in the prior art. That is, by connecting the crossbeam slider 601 and the vertical beam slider 501 to the lead screw in the corresponding drive unit, the lead screw motor drives the lead screw to rotate. Simultaneously, the rotation of the lead screw drives the corresponding crossbeam slider 601 and vertical beam slider 501 to move along the crossbeam 6 and the slide rail 7, respectively. This embodiment can achieve automatic control of the movement of the crossbeam slider 601 and the vertical beam slider 501.

[0056] Example 5

[0057] like Figure 1 As shown, the difference between this embodiment and embodiment 3 is that the workbench 1 is hollow inside, the top of the workbench 1 has an opening, and a perforated plate 2 is connected to the top of the workbench 1. The perforated plate 2 covers the opening of the workbench 1. In this embodiment, the perforated plate 2 is a rectangular plate, and the perforated plate 2 is detachably connected to the workbench 1. Specifically, the four corners of the perforated plate 2 are detachably connected to the workbench 1 by bolts.

[0058] The perforated plate 2 has multiple punch holes 202 arranged in a rectangular array, and the diameter of the multiple punch holes 202 is larger than the diameter formed by the multiple blades 405.

[0059] The workbench 1 is provided with an opening, and the front side of the workbench 1 is provided with the rectangular opening in the embodiment, and the workbench 1 is provided with a slag receiving box 3, the top of the slag receiving box 3 is an open end, the slag receiving box 3 can be put into or pulled out of the workbench 1 through the opening on one side of the workbench 1, and the slag receiving box 3 is fixedly connected with a handle 301 on one side in the embodiment, and the handle 301 is arranged to be more convenient for putting or pulling out the slag receiving box 3.

[0060] The plurality of punching holes 202 arranged on the punching plate 2 in the embodiment can be used for the blade 405 to extend into the punching hole 202 when punching the paperboard, and the waste generated in the punching process can fall into the slag receiving box 3 placed in the workbench 1 from the punching hole 202, so that the waste is conveniently collected, and the punching hole 202 can avoid the direct contact between the blade 405 and the workbench 1, thereby playing a role in protecting the blade 405 and the workbench 1.

[0061] In addition, the punching hole 202 is provided with a plurality of punching holes in the embodiment, so that the paperboard with different punching position requirements can be placed at different positions, and the paperboard to be punched is only needed to be placed on the punching hole 202 at any position on the punching plate 2, so that the position of the punching mechanism 4 on the X axis and the Y axis can be flexibly adjusted according to different requirements when the paperboard is punched, so that the punching position can be selected.

[0062] It should be noted that the above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

[0063] In the description of the present application, it should be noted that the terms "first", "second", "third" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.

[0064] In the description of the present application, the terms "up", "down", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to illustrate the relative positional relationship between the components or constituent parts, and do not particularly limit the specific installation orientation of the components or constituent parts.

[0065] In the description of the present document, some terms may be used to represent the positional or positional relationship in addition to the meaning of the terms. For example, the term "upper" may also be used to represent a certain dependent relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0066] In the description of the present document, the terms "mounting", "setting", "provided with", "connected", "connected" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] The structure, proportion, size, etc. drawn in the drawings attached in the present application are only used to cooperate with the content disclosed in the present technical disclosure, so that those skilled in the art can understand and read, and do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0068] The terms used in the present document are those general terms currently widely used in the art in consideration of the functions of the present disclosure, but these terms can vary according to the intention of those of ordinary skill in the art, precedents, or new technology in the art. In addition, specific terms can be selected by the applicant, and in this case, the detailed meaning thereof will be described in the detailed description of the present disclosure. Therefore, the terms used in the document should not be understood as mere names, but based on the meaning of the terms and the overall description of the present disclosure.

[0069] Flowcharts or words are used in the present document to illustrate the operation steps performed according to the embodiments of the present application. It should be understood that the operation steps in the embodiments of the present application are not necessarily executed in the order recorded. On the contrary, various steps can be processed in reverse order or simultaneously as needed. At the same time, other operations can be added to these processes, or one or more steps of operation can be removed from these processes.

[0070] The above is only the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A packaging paperboard perforating device comprising a worktable and a perforating mechanism, a rack is arranged on the worktable, and the perforating mechanism is installed on the rack, characterized in that, The punching mechanism comprises a lifting unit, a motor, a cutter handle and cutter blades, the lifting unit is connected with the rack, the motor is connected with the telescopic end of the lifting unit, the cutter handle is connected with the output end of the motor, the cutter blades are connected with the cutter handle, and the cutter blades are provided in plurality, and the plurality of cutter blades are distributed along the circumference of the cutter handle.

2. A packaging paperboard perforating device according to claim 1, characterized in that Both sides and the bottom of the cutter blade are provided with cutter edges.

3. A packaging paperboard perforating device according to claim 1, characterized in that The output end of the motor is coaxially connected with a connecting block, and the cutter handle is detachably connected with the connecting block.

4. A packaging paperboard perforating device according to claim 1, characterized in that The telescopic end of the lifting unit is connected with a mounting plate, two through holes are formed in the mounting plate, the two through holes are located on both sides of the lifting unit, guide rods are coaxially and slidingly arranged in the two through holes, the top end of the guide rod is connected with a limiting plate, the limiting plate can limit the top end of the guide rod from sliding out of the through hole, a spring is arranged between the bottom of the guide rod and the mounting plate, and the spring is arranged outside the guide rod.

5. A packaging paperboard perforating device according to claim 4, characterized in that The bottom end of the guide rod is connected with a pressing plate, the two ends of the spring are respectively abutted against or connected with the pressing plate and the mounting plate, and in the natural state of the spring, the bottom of the pressing plate is located below the cutter blade.

6. A packaging paperboard perforating device according to any one of claims 1-5, characterized in that, The rack comprises a cross beam and two vertical beams, and the two ends of the cross beam are respectively connected with the top ends of the two vertical beams. A cross beam sliding block is connected to the lifting unit, and the cross beam sliding block is horizontally slidingly connected with the cross beam. Two symmetrical sliding rails are connected to the workbench, and vertical beam sliding blocks are connected to the bottom ends of the two vertical beams, and the two vertical beam sliding blocks are respectively horizontally slidingly connected with the two sliding rails.

7. A packaging paperboard perforating device according to claim 6, characterized in that Sliding grooves are formed in the top of the workbench and on both sides of the sliding rails, and rollers are rotatably connected to both sides of the vertical beam sliding blocks, and the rollers on both sides of the vertical beam sliding blocks are respectively located in the sliding grooves on both sides of the sliding rails.

8. A packaging paperboard perforating device according to claim 6, characterized in that Driving units are respectively arranged on the cross beam and the workbench to drive the cross beam sliding block and the vertical beam sliding block to move.

9. A packaging paperboard perforating device according to claim 6, characterized in that The workbench is hollow, an opening is formed in the top of the workbench, a punching plate is connected to the top of the workbench, the punching plate covers the opening of the workbench, a plurality of punching holes are formed in the punching plate, the plurality of punching holes are arranged in a rectangular array, and the diameters of the plurality of punching holes are greater than the diameters of the plurality of cutter blades.

10. A packaging paperboard perforating device according to claim 9, characterized in that An opening is also formed in one side of the workbench, a slag receiving box is arranged in the workbench, and the slag receiving box can be put into or taken out of the workbench through the opening in one side of the workbench.