A pressure feedback die-cutting device for packaging cardboard

Abstract

This utility model discloses a cardboard die-cutting device with pressure feedback, belonging to the field of cardboard die-cutting technology. Key technical features include a worktable with conveying mechanisms welded to both sides of the top. A cutting mechanism is welded to the rear side of the top of the conveying mechanisms. The cutting mechanism includes a pressure sensor with a contact column and a return spring for pressure detection. During cutting, an electric cylinder drives the fixed shell to descend. After the cutting blade contacts the cardboard, the reaction force is transmitted to the contact column through a lifting plate, triggering the pressure sensor to collect the cutting pressure in real time. If the pressure is too high, the PLC controller immediately controls the electric cylinder to decelerate, preventing the cardboard from being crushed or the blade from breaking due to overload. If the pressure is too low, automatic pressure replenishment ensures a smooth cut, overcoming the limitations of traditional fixed-pressure cutting for adapting to different cardboard thicknesses. The cutting blade is magnetically connected to the lifting plate via an electromagnetic suction ring, eliminating the need to disassemble screws when replacing the blade compared to traditional bolt fixing.

Description

Technical Field

[0001] This utility model relates to the field of cardboard die-cutting technology, and in particular to a packaging box cardboard die-cutting device with pressure feedback. Background Technology

[0002] A pressure feedback die-cutting device for packaging box cardboard is an automated die-cutting equipment specifically designed for packaging box cardboard processing. Its core function is to cut the cardboard, while simultaneously monitoring the pressure parameters during the cutting process in real time through a pressure feedback mechanism. This optimizes the cutting effect and protects the equipment and cardboard, making it suitable for the cardboard forming stage in packaging box production.

[0003] To address the aforementioned issues, existing patents offer solutions. However, current cardboard die-cutting devices lack a structure for real-time detection of cutting blade pressure. This results in an inability to promptly monitor pressure changes during operation. When the cutting blade pressure is insufficient, the cardboard cannot be completely cut, leaving an incompletely separated cut that requires manual reprocessing. Furthermore, excessive pressure accelerates blade wear, and the blade edge is prone to chipping and curling under high pressure, significantly shortening the blade's lifespan and consequently reducing production efficiency and overall lifespan.

[0004] To address this, a die-cutting device for packaging cardboard with pressure feedback is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a packaging cardboard die-cutting device with pressure feedback, which solves the problem that existing cardboard die-cutting devices lack a structure for real-time detection of cutting blade pressure. This results in the inability to promptly grasp the pressure changes of the cutting blade during operation. When the cutting blade pressure is insufficient, the cardboard cannot be completely cut, and the cut is incompletely separated, requiring manual secondary processing. At the same time, excessive pressure will accelerate the wear of the cutting blade, and the blade is prone to chipping and rolling under strong pressure, which greatly shortens the service life of the cutting blade, thereby reducing production efficiency and service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a packaging box cardboard die-cutting device with pressure feedback, comprising a worktable, conveying mechanisms welded to both sides of the top of the worktable, and a cutting mechanism welded to the rear side of the top of the conveying mechanisms. The cutting mechanism includes a support column, a mounting block, an electric cylinder, a fixed shell, a mounting shell, a pressure sensor, a return spring, a lifting plate, a contact column, an electromagnetic suction ring, and a cutting blade. The support column is welded to the rear side of the top of the conveying mechanism, the mounting block is welded to the surface of the top of the support column, the electric cylinder is mounted on the top of the mounting block, the fixed shell is fixedly connected to the telescopic end at the bottom of the electric cylinder, the mounting shell is welded to the top of the inner side of the fixed shell, the pressure sensor is mounted on the top of the inner side of the mounting shell, the return spring is fixedly connected to the inner side of the fixed shell, and the lifting plate is slidably connected to the inner side of the fixed shell.

[0007] Preferably, the contact post is welded to the top of the lifting plate, the top of the contact post is slidably connected to the inner side of the mounting shell, the electromagnetic suction ring is welded to the bottom of the lifting plate, and the cutting blade is magnetically connected to the inner side of the electromagnetic suction ring.

[0008] Preferably, the conveying mechanism includes a limiting plate, a movable groove, three limiting columns, a compression spring, a pressing plate, three conveying rollers, a connecting wheel, a connecting belt, a servo motor, and a PLC controller. The limiting plate is welded to both sides of the top of the worktable, and the supporting columns are welded to the rear side of the top of the limiting plate.

[0009] Preferably, the movable groove is opened on the inner side of the limiting plate, the limiting post is welded to the inner side of the movable groove, the compression spring is installed on the surface of the limiting post, the pressing plate is slidably connected to the surface of the limiting post, the bottom of the compression spring is fixedly connected to the top of the pressing plate, and the conveying roller is rotatably connected to the bottom of the front side of the inner side of the limiting plate.

[0010] Preferably, both sides of the conveyor roller extend through to the outside of the limiting plate, the connecting wheel is fixedly connected to both sides of the conveyor roller, the right side of the right front connecting wheel is connected to the connecting shaft by a flat key, the connecting belt is movably connected to the surface of the connecting wheel, the servo motor is installed on the front side of the right side of the worktable, the output end of the left side of the servo motor is fixedly connected to the right side of the connecting shaft, and the PLC controller is installed on the surface of the right side of the right limiting plate.

[0011] Preferably, a handle is welded to the top of the pressing plate, and the surface of the handle is engraved with anti-slip texture.

[0012] Preferably, a protective pad is fixedly connected to the bottom of the pressing plate. The protective pad is made of rubber material and has anti-slip textures engraved on its surface.

[0013] Preferably, the surface of the conveyor roller is covered with an anti-slip pad, which is made of polyurethane material.

[0014] Preferably, the bottom of the workbench is welded with support feet at the chamfered corner, and the bottom of the support feet is engraved with anti-slip texture.

[0015] Preferably, a reinforcing ring is welded to the side of the support column near the mounting block and the limiting plate, and the surface of the reinforcing ring is coated with an anti-corrosion coating.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The conveying mechanism of this application adopts a combination of a limiting plate, a movable groove, and a limiting column to limit the cardboard. The limiting column guides the pressing plate to rise and fall stably. The pressing plate and the limiting column are equipped with compression springs, which can automatically adjust the pressing force according to the thickness of the cardboard to prevent slippage during conveying. The servo motor, the connecting wheel, and the connecting belt drive the three conveying rollers to rotate synchronously. The servo motor has an adjustable speed, and the connecting belt ensures the synchronization of the multi-roller transmission to avoid cardboard conveying jams or wrinkles due to uneven power of a single roller. The PLC controller can be linked with the pressure feedback of the cutting mechanism and can automatically adjust the conveying speed according to the die-cutting rhythm.

[0018] 2. The pressure detection structure of the cutting mechanism in this application, which includes a pressure sensor, a contact column, and a return spring, allows for real-time acquisition of cutting pressure. During cutting, the electric cylinder drives the fixed shell to descend. After the cutting blade contacts the cardboard, the reaction force is transmitted to the contact column through the lifting plate, triggering the pressure sensor to collect the cutting pressure in real time. If the pressure is too high, the PLC controller will immediately control the electric cylinder to decelerate, preventing the cardboard from being crushed or the blade from breaking due to overload. If the pressure is too low, it will automatically compensate for the pressure, ensuring a smooth cut. This solves the limitations of traditional fixed pressure cutting for adapting to cardboard of different thicknesses. The cutting blade is magnetically connected to the lifting plate via an electromagnetic suction ring. Compared to traditional bolt fixing, there is no need to remove the screws when changing the blade. Simply turn off the power to the electromagnetic suction ring to remove the old blade and install the new blade. This is especially suitable for rapid changeover production of various packaging boxes with different sizes or shapes of cuts, significantly improving the processing efficiency of small-batch, multi-order orders. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the pressure feedback die-cutting device for packaging box cardboard of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the electric cylinder of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the fixing shell of this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting wheel of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 This is a schematic diagram of the structure of the protective pad of this utility model.

[0025] In the diagram, 1. Workbench; 2. Conveying mechanism; 201. Limiting plate; 202. Movable groove; 203. Limiting post; 204. Compression spring; 205. Pressing plate; 206. Conveying roller; 207. Connecting wheel; 208. Connecting belt; 209. Servo motor; 210. PLC controller; 3. Cutting mechanism; 301. Support column; 302. Mounting block; 303. Electric cylinder; 304. Fixed shell; 305. Mounting shell; 306. Pressure sensor; 307. Return spring; 308. Lifting plate; 309. Contact post; 310. Electromagnetic suction ring; 311. Cutting blade; 4. Handle; 5. Protective pad; 6. Anti-slip pad; 7. Support foot; 8. Reinforcing ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-6 The present invention provides the following technical solution:

[0028] A pressure feedback die-cutting device for packaging cardboard includes a workbench 1. Conveying mechanisms 2 are welded to both sides of the top of the workbench 1. A cutting mechanism 3 is welded to the rear side of the top of the conveying mechanism 2. The cutting mechanism 3 includes a support column 301, a mounting block 302, an electric cylinder 303, a fixed shell 304, a mounting shell 305, a pressure sensor 306, a return spring 307, a lifting plate 308, a contact column 309, an electromagnetic suction ring 310, and a cutting blade 311. The support column 301 is welded to the rear side of the top of the conveying mechanism 2. The mounting block 302 is welded to the top surface of the support column 301. The electric cylinder 303 is mounted on the top of the mounting block 302. The fixed shell 304 is fixedly connected to the telescopic end at the bottom of the electric cylinder 303. The mounting shell 305 is welded to the top of the inner side of the fixed shell 304. The pressure sensor 306 is mounted on the top of the inner side of the mounting shell 305. The return spring 307 is fixedly connected to the inner side of the fixed shell 304. The lifting plate 308 is slidably connected to the inner side of the fixed shell 304.

[0029] In this embodiment: the workbench 1 is set to support and limit the conveying mechanism 2. The support column 301 can provide support and limit the mounting block 302. The mounting block 302 is the fixed carrier of the electric cylinder 303 and is connected to the support column 301 by welding to realize the positioning of the electric cylinder 303. The electric cylinder 303 can adjust the extension speed and stroke through the PLC controller 210 to adapt to the die-cutting requirements of cardboard of different thicknesses and avoid pressure fluctuations caused by unstable power output. The fixed shell 304 provides a closed installation space for the internal mounting shell 305, return spring 307, lifting plate 308 and other components. The mounting shell 305 is used to fix the pressure sensor 306. The closed space protects the sensor from external impact and impurity interference, ensuring that the pressure sensor 306 can stably collect pressure data. The pressure sensor 306 collects the pressure when the cutting blade 311 contacts the cardboard in real time. The data is processed and the physical signals are converted into electrical signals and transmitted to the PLC controller 210 to realize the visualization and controllability of the cutting pressure. The return spring 307 can play a buffering role during the cutting process, reducing the impact force when the cutting blade 311 contacts the cardboard, protecting the blade and the cardboard, extending the blade's service life and improving the flatness of the cut. The lifting plate 308 serves as the mounting carrier for the electromagnetic suction ring 310 and the cutting blade 311. It is slidably connected to the inside of the fixed shell 304 to realize the vertical lifting of the cutting blade 311. When the cutting blade 311 contacts the cardboard and generates pressure, the contact post 309 moves upward with the lifting plate 308 to transmit the pressure to the pressure sensor 306. The electromagnetic suction ring 310 can significantly shorten the replacement time of the cutting blade 311 and improve the equipment maintenance efficiency. The cutting blade 311 can ensure that the cardboard cut is flat and free of burrs, improving the appearance quality and forming effect of the packaging box.

[0030] Specifically, such as Figure 2 , Figure 3 As shown, the contact post 309 is welded to the top of the lifting plate 308, and the top of the contact post 309 is slidably connected to the inner side of the mounting shell 305. The electromagnetic suction ring 310 is welded to the bottom of the lifting plate 308, and the cutting blade 311 is magnetically connected to the inner side of the electromagnetic suction ring 310.

[0031] Specifically, such as Figure 4 , Figure 5 As shown, the conveying mechanism 2 includes a limiting plate 201, a movable groove 202, three limiting columns 203, a compression spring 204, a pressing plate 205, three conveying rollers 206, a connecting wheel 207, a connecting belt 208, a servo motor 209, and a PLC controller 210. The limiting plate 201 is welded to both sides of the top of the workbench 1, and the support column 301 is welded to the rear side of the top of the limiting plate 201.

[0032] Specifically, such as Figure 4 , Figure 5As shown, the movable groove 202 is opened on the inner side of the limiting plate 201, the limiting post 203 is welded to the inner side of the movable groove 202, the compression spring 204 is installed on the surface of the limiting post 203, the pressing plate 205 is slidably connected to the surface of the limiting post 203, the bottom of the compression spring 204 is fixedly connected to the top of the pressing plate 205, and the conveying roller 206 is rotatably connected to the bottom of the front side of the inner side of the limiting plate 201.

[0033] In this embodiment: The limiting plate 201 supports and limits the cutting mechanism 3, the movable groove 202, and the limiting post 203. The movable groove 202 provides installation and sliding space for the limiting post 203 and the pressing plate 205, ensuring that the pressing plate 205 can flexibly rise and fall vertically to adapt to cardboard of different thicknesses. The limiting post 203 guides and limits the rising and falling trajectory of the pressing plate 205, preventing the pressing plate 205 from tilting or shifting during sliding, ensuring that the pressing plate 205 can evenly press the cardboard. The compression spring 204 provides continuous and uniform downward pressure to the pressing plate 205 through its own elasticity, ensuring that the cardboard fits tightly against the conveyor roller 206 during conveying, preventing slippage or positional shift caused by loose cardboard. The pressing plate 205... The compression spring 204 presses the cardboard tightly, which, together with the conveyor roller 206, ensures stable conveying of the cardboard and prevents it from wrinkling or shifting due to vibration or wind during conveying. The conveyor roller 206 prevents slippage during conveying and ensures uniform cardboard conveying speed. The connecting wheel 207 achieves synchronous rotation of multiple conveyor rollers 206 through the connecting belt 208, ensuring that the speed of each conveyor roller 206 is consistent. The connecting belt 208 connects each connecting wheel 207 to realize the transmission and distribution of power, ensuring that multiple conveyor rollers 206 operate synchronously. The servo motor 209 can adjust the conveying speed through the PLC controller 210. The PLC controller 210 integrates the detection data of the pressure sensor 306 with the operating parameters of the servo motor 209 and the electric cylinder 303 to realize the automated control of the entire device.

[0034] Specifically, such as Figure 4 , Figure 5 As shown, both sides of the conveyor roller 206 extend through to the outer side of the limiting plate 201. The connecting wheel 207 is fixedly connected to both sides of the conveyor roller 206. The right side of the right front connecting wheel 207 is connected to the connecting shaft via a flat key. The connecting belt 208 is movably connected to the surface of the connecting wheel 207. The servo motor 209 is installed on the front side of the right side of the worktable 1. The output end of the left side of the servo motor 209 is fixedly connected to the right side of the connecting shaft. The PLC controller 210 is installed on the surface of the right side of the right limiting plate 201.

[0035] Specifically, such as Figure 1 As shown, a handle 4 is welded to the top of the pressing plate 205, and the surface of the handle 4 is engraved with anti-slip texture.

[0036] In this embodiment: by setting handle 4, a convenient point of force application is provided for the operator, and by setting anti-slip texture, the friction of the hand is increased to avoid slipping during operation.

[0037] Specifically, such as Figure 6 As shown, a protective pad 5 is fixedly connected to the bottom of the pressing plate 205. The protective pad 5 is made of rubber material and has anti-slip textures engraved on its surface.

[0038] Specifically, such as Figure 1 As shown, the surface of the conveyor roller 206 is covered with an anti-slip pad 6, which is made of polyurethane material.

[0039] In this embodiment: by setting the protective pad 5, direct rigid contact between the pressing plate 205 and the cardboard can be avoided when pressing the cardboard, reducing indentations or damage to the cardboard surface and protecting the appearance quality of the cardboard. By setting the protective pad 5 to be made of rubber material, which has good elasticity and anti-slip properties, the anti-slip texture can enhance the friction with the cardboard, further improving the stability of cardboard conveying and preventing slippage. By setting the anti-slip pad 6, the friction between the conveyor roller 206 and the cardboard is increased, effectively preventing the cardboard from slipping during conveying and ensuring uniform conveying speed. By setting the anti-slip pad 6 to be made of polyurethane material, the elasticity of the polyurethane material can buffer the contact pressure between the conveyor roller 206 and the cardboard, preventing damage to the cardboard surface due to compression and extending the service life of the conveyor roller 206.

[0040] Specifically, such as Figure 1 As shown, a support leg 7 is welded to the chamfer at the bottom of the workbench 1, and the bottom of the support leg 7 is engraved with anti-slip texture.

[0041] Specifically, such as Figure 2 As shown, a reinforcing ring 8 is welded to the side of the support column 301 near the mounting block 302 and the limiting plate 201, and the surface of the reinforcing ring 8 is coated with an anti-corrosion coating.

[0042] In this embodiment: by setting support feet 7, stable support is provided for the workbench 1, improving the stability of the workbench 1 on the ground; by setting anti-slip texture, the friction with the ground can be increased; by setting reinforcing rings 8, the connection strength between the support column 301 and the mounting block 302 and the limiting plate 201 is enhanced, preventing the support column 301 from bending or breaking when subjected to cutting pressure; by setting anti-corrosion coating, the reinforcing rings 8 can be prevented from rusting due to long-term exposure to air, extending their service life.

[0043] Working principle: First, the operator manually pulls the pressing plate 205 upwards using the handle 4 on top of the pressing plate 205. The pressing plate 205 slides upwards along the limiting post 203 in the movable groove 202 inside the limiting plate 201. At the same time, the compression spring 204 is stretched, placing the cardboard box to be die-cut between the conveyor roller 206 and the pressing plate 205. Then, after the operator releases the handle 4, the compression spring 204 returns to its original position due to its own elasticity, causing the pressing plate 205 to press the cardboard downwards. The rubber protective pad 5 contacts the cardboard, preventing indentations on the cardboard surface and enhancing friction through anti-slip textures to ensure that the cardboard does not slip during conveying. At this time, the PLC controller 210 completes initialization, and the operator can adjust the parameters such as the thickness and material of the cardboard. The PLC controller 210 presets the extension speed, stroke, and cutting pressure safety thresholds of the electric cylinder 303 to prepare parameters for subsequent die-cutting operations. Next, the PLC controller 210 sends a start command to the servo motor 209. The output end of the servo motor 209 on the left side drives the connecting shaft of the right front connecting wheel 207 to rotate. The right front connecting wheel 207, through the connecting belt 208 on its surface, drives the connecting wheels 207 on both sides of the other conveyor rollers 206 to rotate synchronously, thus causing the three conveyor rollers 206 to rotate at the same uniform speed. The conveyor rollers 206 are in close contact with the cardboard, and under the action of friction, they drive the cardboard towards the cutting mechanism 3. Then, the PLC controller 210 sends a downward command to the electric cylinder 303, causing the extension and retraction of the bottom of the electric cylinder 303 to begin. The end pushes the fixed shell 304 to move vertically downwards. The fixed shell 304 drives the inner mounting shell 305, the return spring 307, the lifting plate 308, and the electromagnetic suction ring 310 and the cutting blade 311 at the bottom of the lifting plate 308 to move downwards synchronously. During this process, the lifting plate 308 slides smoothly along the inner side of the fixed shell 304, the return spring 307 is in its natural state, and the top of the contact post 309 is always located inside the mounting shell 305 to prepare for subsequent pressure testing. The electromagnetic suction ring 310 is energized and firmly attracts the cutting blade 311 through magnetic force, ensuring that the cutting blade 311 does not loosen or shift during the downward movement. Then, as the cutting blade 311 continues to move downwards, the cutting blade of the cutting blade 311 contacts the surface of the cardboard and begins the die-cutting operation. When subjected to the reaction force of the cardboard, the pressure is transmitted through the cutting blade 311 to the electromagnetic suction ring 310, and then from the electromagnetic suction ring 310 to the lifting plate 308. Upon receiving the pressure, the lifting plate 308 presses upward against the return spring 307, simultaneously causing the top contact post 309 to slide upward along the inner side of the mounting housing 305. The top of the contact post 309 contacts the pressure sensor 306 inside the mounting housing 305 and applies pressure. The pressure sensor 306 collects this pressure data in real time and converts the physical pressure signal into an electrical signal, which is then quickly transmitted to the PLC controller 210. The PLC controller 210 compares the received real-time pressure data with a preset pressure threshold. If the real-time pressure is lower than the threshold, the PLC controller 210 controls the electric cylinder 303 to increase the output power.The pressure of the cutting blade 311 is increased to ensure that the cardboard is completely cut. If the real-time pressure exceeds the threshold, the PLC controller 210 controls the electric cylinder 303 to reduce the output power to prevent the cutting blade 311 from breaking due to excessive pressure, and to prevent the cardboard from being excessively squeezed, causing deformation or breakage. This achieves dynamic control of the cutting pressure. Finally, after the cutting blade 311 completes the die-cutting operation on the cardboard, the PLC controller 210 sends an upward command to the electric cylinder 303. The telescopic end of the electric cylinder 303 drives the fixed housing 304 and its internal components to return to their original position. At this time, the reaction force of the cardboard on the lifting plate 308 disappears, and the return spring 307 returns to its original position. The lifting plate 308 is pushed downwards by its own elasticity, the contact column 309 separates from the pressure sensor 306, and the pressure sensor 306 stops collecting pressure data. Simultaneously, the conveyor roller 206 continues to transport the die-cut cardboard to the outside of the equipment. After the cardboard has completely left the cutting area, the equipment returns to its initial state and can proceed with the die-cutting of the next cardboard sheet. If a different specification of cutting blade 311 needs to be replaced, simply turn off the power to the electromagnetic suction ring 310. After the magnetism disappears, the old cutting blade 311 can be removed. After replacing the new cutting blade 311, power is turned back on, and the electromagnetic suction ring 310 will again magnetically hold the cutting blade 311 in place.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A die cutting device for carton board of a packaging box with pressure feedback, comprising a worktable (1), characterized in that: The workbench (1) top of both sides of the welding delivery mechanism (2), the top of the rear side of the cutting mechanism (3) is welded, the cutting mechanism (3) includes support column (301), mounting block (302), electric cylinder (303), fixed shell (304), mounting shell (305), pressure sensor (306), reset spring (307), lifting plate (308), contact column (309), electromagnetic suction ring (310) and cutting knife (311), the support column (301) is welded on the top of the rear side of the delivery mechanism (2), the mounting block (302) is welded on the top surface of the support column (301), the electric cylinder (303) is installed on the top of the mounting block (302), the fixed shell (304) is fixedly connected to the telescopic end of the bottom of the electric cylinder (303), the mounting shell (305) is welded on the top of the inner side of the fixed shell (304), the pressure sensor (306) is installed on the top of the inner side of the mounting shell (305), the reset spring (307) is fixedly connected to the inner side of the fixed shell (304), the lifting plate (308) is slidably connected to the inner side of the fixed shell (304).

2. A packaging carton paperboard die cutting apparatus with pressure feedback according to claim 1, characterized in that: The contact column (309) is welded on the top of the lifting plate (308), the top of the contact column (309) is slidably connected to the inner side of the mounting shell (305), the electromagnetic suction ring (310) is welded on the bottom of the lifting plate (308), and the cutting knife (311) is magnetically connected to the inner side of the electromagnetic suction ring (310).

3. The die cutting apparatus for carton paperboard of claim 1, wherein: The delivery mechanism (2) includes a limiting plate (201), a movable groove (202), three limiting columns (203), a compression spring (204), a pressing plate (205), three delivery rollers (206), a connecting wheel (207), a connecting belt (208), a servo motor (209) and a PLC controller (210), the limiting plate (201) is welded on the top of both sides of the workbench (1), and the support column (301) is welded on the top of the rear side of the limiting plate (201).

4. A packaging carton paperboard die cutting apparatus with pressure feedback according to claim 3, characterized in that: The movable groove (202) is formed in the inner side of the limiting plate (201), the limiting column (203) is welded on the inner side of the movable groove (202), the compression spring (204) is installed on the surface of the limiting column (203), the pressing plate (205) is slidably connected to the surface of the limiting column (203), the bottom of the compression spring (204) is fixedly connected to the top of the pressing plate (205), and the delivery roller (206) is rotatably connected to the bottom of the inner side of the front side of the limiting plate (201).

5. The packaging carton paperboard die cutting apparatus with pressure feedback of claim 3, wherein: Both sides of the conveying roller (206) extend through the outside of the limiting plate (201), the connecting wheel (207) is fixedly connected on both sides of the conveying roller (206), the right side of the right front connecting wheel (207) is connected with a connecting shaft through a flat key, the connecting belt (208) is movably connected on the surface of the connecting wheel (207), the servo motor (209) is installed on the front side of the right side of the workbench (1), the output end on the left side of the servo motor (209) is fixedly connected on the right side of the connecting shaft, and the PLC controller (210) is installed on the surface of the right side of the right limiting plate (201).

6. A packaging carton paperboard die cutting apparatus with pressure feedback in accordance with claim 3, wherein: The top of the pressing plate (205) is welded with a handle (4), and the surface of the handle (4) is engraved with anti-skid lines.

7. The packaging carton paperboard die cutting apparatus with pressure feedback of claim 3, wherein: The bottom of the pressing plate (205) is fixedly connected with a protective pad (5), the protective pad (5) is made of rubber material, and the surface of the protective pad (5) is engraved with anti-skid lines.

8. The die cutting apparatus for carton paperboard with pressure feedback according to claim 3, wherein: The surface of the conveying roller (206) is sleeved with an anti-skid pad (6), and the anti-skid pad (6) is made of polyurethane material.

9. The packaging carton paperboard die cutting apparatus with pressure feedback of claim 1, wherein: The chamfered portion of the bottom of the workbench (1) is welded with a supporting leg (7), and the bottom of the supporting leg (7) is engraved with anti-skid lines.

10. The packaging carton paperboard die cutting apparatus with pressure feedback of claim 1, wherein: The supporting column (301) is welded with a reinforcing ring (8) on one side close to the mounting block (302) and the limiting plate (201), and the surface of the reinforcing ring (8) is coated with anti-corrosion paint.

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