Corrugated paper cutting device with waste recovery function

Abstract

The invention relates to the technical field of corrugated paper production, in particular to a corrugated paper cutting device with a waste recycling function, which comprises a paper feeding frame and motor boxes arranged on two sides of the paper feeding frame, a cutting part is arranged in the middle of the paper feeding frame, a guide part is arranged at the rear end of the paper feeding frame, and a first extrusion part is arranged between the cutting part and the guide part. A second extrusion part is arranged below the first extrusion part, the second extrusion part is matched with the first extrusion part, an adjusting part is arranged in the second extrusion part, and the adjusting part is connected with a pressed part arranged between the first extrusion part and the second extrusion part through a communicating part; when the distance between the first extrusion part and the second extrusion part is reduced, a medium in the pressed part enters the second extrusion part through the communicating part, so that the adjusting part forms an indentation on the lower surface of the waste paper edge, and the situation that the warping angle of the waste paper edge is too large after a corrugated board is cut is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of corrugated paper production technology, specifically to a corrugated paper cutting device with waste recycling function. Background Technology

[0002] Corrugated cardboard is typically made by bonding at least one layer of corrugated core paper to one layer of linerboard. In the actual production process of corrugated cardboard, continuous whole sheets of corrugated cardboard need to be cut transversely along the width direction and longitudinally at predetermined intervals along the length direction to finally form independent corrugated cardboard units.

[0003] However, during the cutting process, the waste material from both sides passes through the extrusion rollers along with the main cardboard and enters the subsequent processes. Although the subsequent processes perform intermittent cutting operations in the cardboard conveying direction, the waste edges continue to adhere to the edges of the cardboard. This process design necessitates manual removal of the waste edges during the final product collection stage, significantly increasing labor costs in the production process.

[0004] Chinese patent application CN202010046357.9 discloses a corrugated cardboard edge collection device, including a base and a cutting blade. The base has a feeding channel, and a storage box for storing waste material is located below the base. An outlet connected to the storage box is opened on the base within the feeding channel. A pair of squeezing rollers for pulling the waste edges are rotatably mounted in the storage box, with the rotation axis of the squeezing rollers perpendicular to the feeding direction of the feeding channel. The corrugated cardboard is conveyed along the feeding channel. When the cardboard passes under the cutting blade, the cutting blade rotates at high speed to cut the cardboard, guiding the waste edges through the outlet into the storage box. The squeezing rollers continuously pull the waste edges, causing the cardboard to be fed into the feeding channel. During the continuous cutting process, the waste edges are stored in the storage box, achieving centralized recycling of waste edges, facilitating subsequent processing, improving the production efficiency of corrugated cardboard, and ensuring the quality of the cardboard by preventing compression of the middle portion of the cardboard after cutting during the conveying process.

[0005] Although existing patents have disclosed technical solutions for automatically collecting waste edges by using guide plates to guide waste edges into a storage box, these solutions still have several technical defects that need to be addressed in practical applications. The specific technical problems are described below:

[0006] When a guide plate applies vertical downward pressure to the waste edge to achieve a guiding function, this force may interfere with the cutting trajectory of the cutting blade. This interference effect can cause irregular breaks or fiber burrs on the cut edge of the corrugated cardboard. Especially when the waste edge is subjected to a continuous downward pulling force, relative displacement may occur between the cardboard layers near the cutting point, which in turn leads to the deterioration of the flatness of the corrugated structure in the middle area, seriously affecting product quality.

[0007] When cutting corrugated cardboard of different thicknesses, the technical solution exhibits significant adaptability deficiencies. When processing thicker corrugated cardboard, the waste edges, due to their higher fiber density, require a greater vertical guiding force to ensure they enter the storage bin. However, this increased force concentrates in the cut edge area, creating localized stress concentration. When this stress exceeds the bonding strength between the cardboard fibers, edge tearing is highly likely, affecting waste edge collection efficiency and potentially causing production interruptions.

[0008] Furthermore, the common problem of edge warping during corrugated cardboard cutting stems from uneven moisture distribution and tension differences within the cardboard, resulting in non-planar deformation of the cut edges. This deformation causes the actual vertical pressure exerted on the edge upon contact with the guide plate to be significantly greater than the theoretically calculated value under straight conditions. This abnormally increased pressure further exacerbates the risk of edge tearing. It is particularly noteworthy that cardboard thickness is positively correlated with the degree of warping; thicker cardboard exhibits more significant deformation due to the release of internal stress during cutting. This coupling effect between material properties and process parameters significantly limits the effectiveness of existing technologies in handling thick corrugated cardboard. Summary of the Invention

[0009] The purpose of this invention is to provide a corrugated paper cutting device with waste recycling function, which aims to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] This invention provides a corrugated paper cutting device with waste recycling function, including a paper feeding frame and a motor housing disposed on both sides of the paper feeding frame, and further comprising:

[0012] The cutting section, located in the middle of the paper feeder, is used to cut corrugated cardboard.

[0013] A guide, located at the rear end of the paper feeder, guides the cut-off waste paper edges into a storage bin at the bottom of the paper feeder.

[0014] The first extrusion member is located between the cutting section and the guide member, and can reciprocate in a direction perpendicular to the paper feeder;

[0015] The second extruder is located below the first extruder and works in conjunction with the first extruder to compress the edges of the waste paper.

[0016] An adjusting member is located inside the second extruder and is connected to the pressure-receiving part disposed between the first extruder and the second extruder via a connecting member;

[0017] When the distance between the first extruder and the second extruder decreases, the medium in the pressure section enters the interior of the second extruder through the connecting member, so that the adjusting member forms an indentation on the lower surface of the waste paper edge.

[0018] Preferably, the first pressing member includes a first rotating shaft disposed above the paper feeder, the first rotating shaft is provided with symmetrically distributed first rotating wheels, and the paper feeder is provided with through grooves corresponding to the positions of the first rotating wheels;

[0019] Both ends of the first rotating shaft are provided with moving blocks, which can reciprocate in a direction perpendicular to the paper feeder.

[0020] Preferably, the second extrusion member includes a second rotating shaft disposed below the first extrusion member, both ends of the second rotating shaft are provided with fixing blocks, and the second rotating shaft is provided with symmetrically distributed second rotating wheels, the positions of the second rotating wheels corresponding to the first rotating wheels.

[0021] Preferably, the adjusting member includes a cavity formed inside the second rotating wheel, a movable groove is provided on the outer side of the cavity, and a rib plate is elastically connected inside the movable groove, the rib plate being axially movable within the movable groove.

[0022] Preferably, the connecting member includes an air passage formed on the second rotating shaft, the air passage being connected to the cavity;

[0023] The bottom of the pressure-bearing part is provided with a conduit, and the other end of the conduit is connected to the airway.

[0024] Preferably, an elastic part is provided between the fixed block and the moving block, and an adsorption member is provided at the bottom of the elastic part, which is used to adjust the distance between the fixed block and the moving block.

[0025] Preferably, the adsorption element includes a collection box disposed on the paper feeder, a negative pressure adsorption device is provided on the outside of the collection box, and a first adsorption tube and a second adsorption tube are provided on the other side of the collection box;

[0026] The end of the first adsorption tube furthest from the collection box is located below the cutting section and is used to adsorb waste paper scraps; the end of the second adsorption tube furthest from the collection box is connected to the elastic part. By adjusting the power of the negative pressure adsorption device, the adsorption force of the second adsorption tube on the elastic part is changed, thereby adjusting the distance between the fixed block and the moving block.

[0027] Preferably, the guide includes a rotating shaft disposed above the paper feeder, the rotating shaft having symmetrically distributed guide wheels, and a conveying wheel being disposed between two of the guide wheels;

[0028] The paper feeder is provided with guide grooves corresponding to the guide wheels, which are used to guide the waste paper edges into the storage box.

[0029] Preferably, a transmission member is provided between the guide member and the second extruder, the transmission member being used to drive the guide member and the second extruder to rotate synchronously.

[0030] Preferably, the paper feeder is provided with a detection unit at its entrance, which is used to detect the thickness of the paperboard entering the paper feeder.

[0031] The technical effects and advantages of this invention are as follows:

[0032] 1. This invention, by setting up a detection unit and an extrusion component, automatically detects the thickness of corrugated cardboard during the conveying process and adjusts the working parameters of the subsequent processing unit accordingly. For the waste paper edges generated during cutting, the device uses a synchronously moving extrusion wheel set to thin them, effectively increasing the flexibility of the waste edges and allowing them to smoothly enter the collection box through the guide mechanism. This avoids jamming or tearing caused by excessive rigidity of the waste edges, reduces cardboard conveying vibration caused by waste accumulation, and ensures the straightness of the main cardboard cutting line.

[0033] 2. This invention incorporates an adjusting mechanism that simultaneously triggers a pressure transmission mechanism when the system detects thicker cardboard and adjusts the spacing between the extrusion rollers. This mechanism transmits the physical pressure generated by the extrusion through a sealed pipeline to a movable rib plate within the guide rollers, forcing the rib plate to protrude and form an indentation on the lower surface of the waste edge. This effectively counteracts the upward warping tendency of the waste edge caused by the release of internal stress, allowing the waste edge to fall more smoothly along a predetermined path, greatly improving the collection effect. Furthermore, the protrusion length of the rib plate adaptively adjusts with the cardboard thickness, precisely addressing different degrees of warping risk.

[0034] 3. This invention, by incorporating an adsorption component and adjusting the suction force according to the cardboard thickness, ensures that cutting debris is effectively removed, maintaining a clean working environment. More importantly, this adsorption force also serves as the power source for adjusting the pressure applied to the waste edges by the extrusion rollers; this coupled design simplifies the structure. Through the synergistic work of extrusion, guidance, anti-warping, and negative pressure adsorption, automated and highly efficient collection of waste paper edges and debris is ultimately achieved, effectively separating qualified products from waste materials, thus improving production efficiency and product quality. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0036] Figure 2 This is a cross-sectional structural diagram of the main structure of the present invention;

[0037] Figure 3 This is a schematic diagram of the connection structure between the first extrusion member and the second extrusion member of the present invention;

[0038] Figure 4This is a schematic diagram of the connection structure between the first extruder and the second extruder from another perspective of the present invention;

[0039] Figure 5 This is a schematic diagram of the structure of the second extrusion member of the present invention;

[0040] Figure 6 This is a schematic diagram of the connecting element of the present invention;

[0041] Figure 7 This is a schematic diagram of the structure of the adjusting component of the present invention.

[0042] In the picture:

[0043] 1. Paper feeder;

[0044] 2. First extrusion component; 201. Moving block; 202. First rotating shaft; 203. First rotating wheel;

[0045] 3. Second extrusion component; 301. Fixing block; 302. Second rotating shaft; 303. Second rotating wheel;

[0046] 4. Adjusting component; 401. Cavity; 402. Movable groove; 403. Rib plate;

[0047] 5. Connecting component; 501. Tube; 502. Airway;

[0048] 6. Adsorption element; 601. First adsorption tube; 602. Second adsorption tube; 603. Collection box;

[0049] 7. Guide component; 701. Rotating shaft; 702. Guide wheel; 703. Conveyor wheel; 704. Guide groove;

[0050] 8. Elastic part;

[0051] 9. Pressure-bearing part;

[0052] 10. Testing Department;

[0053] 11. Cutting section;

[0054] 12. Transmission components;

[0055] 13. Storage box;

[0056] 14. Motor box. Detailed Implementation

[0057] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0058] Example 1

[0059] Reference Figures 1 to 6 As shown, the present invention provides a corrugated paper cutting device with waste recycling function, including a paper feeder 1 and a motor box 14 disposed on both sides of the paper feeder 1, and also includes a detection unit 10 disposed at the inlet end of the paper feeder 1, the detection unit 10 being used to detect the thickness of the paperboard entering the paper feeder 1.

[0060] The detection unit 10 includes a shaft rotatably connected to the motor housing 14. The motor housing 14 contains a drive device for rotating the shaft, and a pressure wheel, i.e., a pressure sensor, is mounted on the shaft. After the corrugated paper enters the paper feeder 1, the thickness of the corrugated paper can be obtained by detecting the pressure value on the pressure wheel. In this embodiment, the thickness of the corrugated paper can also be detected using infrared or other sensors. Detecting the thickness of corrugated cardboard using the detection unit 10 is prior art and will not be described in detail here.

[0061] Reference Figure 1 As shown, the paper feeder 1 has a cutting section 11 in the middle, which is used to cut corrugated cardboard. The motor box 14 has a drive element inside for driving the cutting section 11 to rotate.

[0062] Reference Figures 1 to 2 As shown, the rear end of the paper feeder 1 is provided with a guide 7, which is used to guide the cut waste paper edge to the storage box 13 at the bottom of the paper feeder 1.

[0063] The guide 7 includes a rotating shaft 701 disposed above the paper feeder 1, with symmetrically distributed guide wheels 702 on the rotating shaft 701, and a conveyor wheel 703 between the two guide wheels 702. The conveyor wheel 703 is used to drive the corrugated cardboard to move on the paper feeder 1. The motor box 14 is equipped with a drive unit for driving the rotating shaft 701 to rotate.

[0064] The paper feeder 1 is provided with a guide groove 704 corresponding to the guide wheel 702. The guide groove 704 is used to guide the waste paper edge into the storage box 13. The storage box 13 is provided with a collection device (not shown in the figure) for collecting the waste paper edge. The collection device includes a winder for winding the waste paper edge.

[0065] It should be noted that in this embodiment, the paper feeder 1 is provided with symmetrically distributed limiting members, which are used to limit the corrugated cardboard in the middle area of ​​the paper feeder 1.

[0066] In actual use, the detection unit 10, cutting unit 11, and guide 7 of the device all begin to rotate. At this time, the operator places the corrugated cardboard to be processed into the paper feeder 1, and the two sides of the corrugated cardboard slide against the limiting members set on the paper feeder 1. The limiting members limit the corrugated cardboard in the middle area of ​​the paper feeder 1, ensuring the positional stability of the corrugated cardboard during the conveying process.

[0067] Subsequently, the pressure rollers mounted on the shaft begin to function. By contacting the surface of the corrugated cardboard and applying a certain pressure, the pressure rollers drive the corrugated cardboard to move towards the cutting section 11. When the corrugated cardboard reaches the cutting section 11, the cutting tools equipped in the cutting section 11 will perform cutting and correction operations on both sides of the corrugated cardboard to ensure that the size and shape of the corrugated cardboard meet the requirements of subsequent processing.

[0068] During the cutting process of the corrugated cardboard in the cutting section 11, two waste edges are formed on both sides of the corrugated cardboard. These two waste edges move towards the rear end of the paper feeder 1 along with the corrugated cardboard as a whole. When the waste edges move to a certain position, they will come into contact with the guide wheel 702 set on the device. The guide wheel 702 applies a downward pressure to the waste edges it contacts by rotating. Under the action of the downward pressure, the waste edges will enter the storage box 13 along the pre-designed guide groove 704.

[0069] The storage box 13 is equipped with a special collection device that can effectively collect and organize the waste edges entering the storage box 13. This waste edge collection method can effectively prevent the waste edges from continuously adhering to the edges of the cardboard during subsequent interval cutting operations.

[0070] Example 2

[0071] Although the above embodiments achieve automatic collection of waste paper edges by applying downward pressure, some technical problems still exist in practical applications. Specifically, when the guide wheel 702 applies downward pressure to the waste paper edges, this force may interfere with the cutting trajectory of the cutting blade, causing irregular breaks or fiber burrs on the cut edges of the corrugated cardboard. Simultaneously, when guiding thicker corrugated cardboard waste edges, localized stress concentration occurs in the cut edge area. When the stress value exceeds the bonding strength between the cardboard fibers, edge tearing is likely to occur, affecting the waste paper collection efficiency. Therefore, a technical improvement is made based on Embodiment 2, and the improved technical solution is as follows:

[0072] Reference Figures 1 to 6As shown, the present invention provides a corrugated paper cutting device with waste recycling function, including a first extruder 2 and a second extruder 3. The first extruder 2 is located between the cutting section 11 and the guide 7, and can reciprocate in a direction perpendicular to the paper feeder 1. The second extruder 3 is located below the first extruder 2, and it cooperates with the first extruder 2 to compress the waste paper edge. By thinning the waste edge, the flexibility of the waste edge is increased, making it easier to smoothly transition into the storage box 13 along the curve of the guide wheel 702. At the same time, the thinning process can make the thickness of the waste edge transition evenly, disperse the stress peak at the cutting point, and avoid the problem of edge tearing.

[0073] Reference Figures 1 to 5 As shown, the first extrusion member 2 includes a first rotating shaft 202 disposed above the paper feeder 1, and first rotating wheels 203 symmetrically distributed on the first rotating shaft 202. The paper feeder 1 is provided with a through groove corresponding to the position of the first rotating wheel 203.

[0074] Both ends of the first rotating shaft 202 are provided with moving blocks 201, which can reciprocate in a direction perpendicular to the paper feeder 1. The moving blocks 201 are located inside the motor box 14 and are slidably connected to the motor box 14.

[0075] Reference Figures 1 to 5 As shown, the second extrusion member 3 includes a second rotating shaft 302 disposed below the first extrusion member 2. Both ends of the second rotating shaft 302 are provided with fixing blocks 301. Symmetrically distributed second rotating wheels 303 are provided on the second rotating shaft 302, with the positions of the second rotating wheels 303 corresponding to the first rotating wheel 203. The outer edge of the second rotating wheel 303 is flush with the through groove.

[0076] Reference Figures 3 to 4 As shown, a transmission member 12 is provided between the guide member 7 and the second extruder 3. The transmission member 12 is used to drive the guide member 7 and the second extruder 3 to rotate synchronously.

[0077] The transmission component 12 includes a driven wheel disposed on the second rotating shaft 302 and the rotating shaft 701. A transmission shaft rotatably connected to the paper feeder 1 is provided between the guide component 7 and the second pressing component 3. A driving wheel is provided on the transmission shaft. A conveyor belt connects the driven wheel and the driving wheel. By driving the transmission shaft to rotate, the synchronous rotation of the second rotating shaft 302 and the rotating shaft 701 is achieved.

[0078] Reference Figures 3 to 4 As shown, an elastic part 8 is provided between the fixed block 301 and the moving block 201, and an adsorption member 6 is provided at the bottom of the elastic part 8. The adsorption member 6 is used to adjust the distance between the fixed block 301 and the moving block 201.

[0079] Reference Figures 3 to 4As shown, the adsorption component 6 includes a collection box 603 disposed on the paper feeder 1. A negative pressure adsorption device is provided on the outside of the collection box 603, and a first adsorption tube 601 and a second adsorption tube 602 are provided on the other side of the collection box 603.

[0080] The end of the first adsorption tube 601 away from the collection box 603 is located below the cutting section 11 and is used to adsorb waste paper scraps; the end of the second adsorption tube 602 away from the collection box 603 is connected to the elastic section 8. By adjusting the power of the negative pressure adsorption device, the adsorption force of the second adsorption tube 602 on the elastic section 8 is changed, thereby adjusting the distance between the fixed block 301 and the moving block 201.

[0081] The elastic part 8 mainly consists of a tube disposed between the fixed block 301 and the movable block 201. A spring is installed inside the tube, and the tube is connected to the second adsorption tube 602. In actual operation, the adsorption force generated by the second adsorption tube 602 can be adjusted to overcome the spring force, thereby driving the movable block 201 to move downward, thus adjusting the distance between the fixed block 301 and the movable block 201.

[0082] In the actual application of this embodiment, a dedicated control system is configured; the control system is connected to the detection unit 10 and can adjust the operating power of the negative pressure adsorption device according to the thickness data of the corrugated cardboard detected by the detection unit 10.

[0083] The specific operating procedure is as follows: When the detection unit 10 detects that the thickness of the corrugated cardboard is within the preset range, the control system will immediately issue an instruction to control the negative pressure adsorption device to maintain the current operating state; in this state, the first extrusion unit and the second extrusion unit also maintain their current state to ensure the stability of the entire equipment operation.

[0084] As the corrugated cardboard gradually moves towards the outlet of the paper feeder 1 in the equipment, the cutting section 11 will cut the two sides of the corrugated cardboard according to the preset program. During the cutting process, a certain amount of debris will inevitably be generated. At this time, the first adsorption tube 601 will adsorb these debris generated by cutting by means of its own negative pressure adsorption function. After the debris is adsorbed, it will enter the collection box 603 through the first adsorption tube 601. The collection box 603 is specially equipped with a debris collector, which can effectively collect the debris entering the box and prevent the debris from scattering.

[0085] When the waste edges on both sides of the corrugated cardboard pass through the area where the first roller 203 and the second roller 303 are located, they are compressed due to the distance between these two rollers. Specifically, the first roller 203 and the second roller 303 will thin the waste edges passing through this area according to their set spacing (see details). Figure 2As shown in the figure), the waste edge after being thinned will have its flexibility improved to a certain extent. When the thinned waste edge comes into contact with the guide wheel 702, due to its increased flexibility, the waste edge can more easily and smoothly transition along the curve of the guide wheel 702, and finally smoothly enter the storage box 13. This effectively avoids the accumulation of waste edge at the guide groove 704 due to its excessive rigidity, which would cause intermittent jamming. Once jamming occurs, it will cause the main paperboard to shake, which will eventually lead to defects such as bending of the cutting line of the main paperboard, affecting product quality.

[0086] When the detection unit 10 detects that the thickness of the corrugated cardboard exceeds the preset range, the control system will react quickly. The control system will increase the operating power of the negative pressure adsorption device according to the specific thickness value of the corrugated cardboard. After the operating power is increased, the adsorption capacity of the first adsorption tube 601 and the second adsorption tube 602 will be enhanced accordingly. Specifically, after the suction capacity of the first adsorption tube 601 is increased, its adsorption capacity for the debris generated during cutting will be significantly improved. This is because when cutting thicker corrugated cardboard, more debris will be generated than under normal circumstances, and the normal adsorption strength cannot meet the effective adsorption of this large amount of debris. By increasing the adsorption capacity of the first adsorption tube 601, this problem can be solved well.

[0087] Meanwhile, as the adsorption capacity of the second adsorption tube 602 is enhanced, the elastic part 8 will contract under the action of negative pressure. The contraction of the elastic part 8 will cause the distance between the fixed block 301 and the moving block 201 to be adjusted, thereby increasing the squeezing pressure of the first rotating wheel 203 and the second rotating wheel 303 on the waste edge. In actual production, if the thickness of the waste edge is high, normal squeezing pressure may not be able to effectively compress the waste edge, resulting in poor flexibility of the waste edge. However, by enhancing the adsorption capacity of the second adsorption tube 602 and increasing the squeezing pressure of the first rotating wheel 203 and the second rotating wheel 303 on the waste edge, the phenomenon of tearing of the waste edge after contact with the guide wheel 702 can be effectively avoided, ensuring the smooth progress of the entire production process and the stability of product quality.

[0088] It should be noted that in this embodiment, a pressure detector can be installed on the conveyor wheel 703 to determine the thickness of the corrugated cardboard. This prevents the pressure detector on the conveyor wheel 703 from providing data support to the negative pressure device after the corrugated cardboard loses contact with the pressure wheel, thus preventing the negative pressure device from returning to its initial state after the corrugated cardboard loses contact with the pressure wheel.

[0089] It should be noted that in this embodiment, a drive wheel can be provided on the paper feeder 1, opposite to the conveyor wheel 703 and the pressure wheel. The corrugated paper is transported through the cooperation of the drive wheel with the conveyor wheel 703 and the drive wheel with the pressure wheel. The drive wheel, conveyor wheel 703, drive wheel, and pressure wheel are all flexible wheels. The paper transport achieved by using two wheels is existing technology and will not be described in detail here.

[0090] Example 3

[0091] Although the above embodiments effectively reduced edge jamming and tearing of waste paper by thinning the edges, some technical problems still exist in practical applications. Specifically, the problem of edge warping is common during corrugated cardboard cutting, and the thickness of the cardboard is positively correlated with the degree of warping. That is, thicker cardboard undergoes more significant deformation due to the release of internal stress during cutting, and even thinning the cardboard cannot fundamentally solve the problem of edge warping. Therefore, a technical improvement is made based on Embodiment 2, and the improved technical solution is shown below:

[0092] Reference Figures 1 to 7 As shown, the present invention provides a corrugated paper cutting device with waste recycling function, including an adjusting member 4, which is located inside the second pressing member 3 and is connected to the pressure receiving part 9 disposed between the first pressing member 2 and the second pressing member 3 through a connecting member 5; when the distance between the first pressing member 2 and the second pressing member 3 decreases, the medium in the pressure receiving part 9 enters the interior of the second pressing member 3 through the connecting member 5, so that the adjusting member 4 forms an indentation on the lower surface of the waste paper edge.

[0093] Reference Figure 7 As shown, the adjusting member 4 includes a cavity 401 formed inside the second rotating wheel 303. A movable groove 402 is provided on the outer side of the cavity 401. A rib plate 403 is elastically connected inside the movable groove 402, and the rib plate 403 can move axially within the movable groove 402. The cavity 401 and the movable groove 402 are in communication.

[0094] Reference Figures 6 to 7 As shown, the connecting member 5 includes an air passage 502 formed on the second rotating shaft 302, which is connected to the cavity 401; the bottom of the pressure-bearing part 9 is provided with a conduit 501, the other end of which is connected to the air passage 502. The conduit 501 is rotatably connected to the second rotating shaft 302.

[0095] In actual use, when the moving block 201 moves downward, it applies a compressive force to the pressure-receiving part 9 mounted on the fixed block 301. The pressure-receiving part 9 contains a bladder; when compressed by the moving block 201, the medium (which can be gas or liquid) filling it flows through the conduit 501 into the air passage 502, and then through the air passage 502 into the cavity 401 inside the second rotating wheel 303. Since the cavity 401 inside the second rotating wheel 303 is interconnected with the movable groove 402, the medium continues to flow and eventually enters the movable groove 402. The medium entering the movable groove 402 exerts a pushing force on the prism plate 403, causing the prism plate 403 to move outward from the second rotating wheel 303. When the ridge plate 403 extends out of the second rotating wheel 303, it will form a hard compression with the lower surface of the waste paper edge. This compression will cause the waste paper edge to have a "downward folding" tendency, thereby effectively reducing the situation where the waste paper edge has an excessively large warping angle after the corrugated cardboard is cut.

[0096] It should be noted that in this embodiment, the extension length of the ridge plate 403 is closely related to the downward movement of the moving block 201. Specifically, the greater the downward distance of the moving block 201, the longer the extension length of the ridge plate 403. This design can effectively accommodate the large deformation caused by the release of internal stress during the cutting process of thicker cardboard, ensuring stable operation of the equipment when cutting cardboard of different thicknesses.

[0097] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0098] Although embodiments of the invention have been shown and described, those skilled in the art will recognize that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrugated paper cutting device with waste recycling function, comprising a paper feeding frame and a motorized box arranged on both sides of the paper feeding frame, characterized in that: a cutting part is arranged in the middle of the paper feeding frame to cut the corrugated paper; a guide is arranged at the rear end of the paper feeding frame to guide the cut waste paper edge into a storage box at the bottom of the paper feeding frame; a first extrusion part is arranged between the cutting part and the guide and can reciprocate in a direction perpendicular to the paper feeding frame; a second extrusion part is arranged below the first extrusion part and realizes compression treatment of the waste paper edge by cooperating with the first extrusion part; an adjusting part is arranged inside the second extrusion part and is connected with a pressure receiving part arranged between the first extrusion part and the second extrusion part through a communication part; when the distance between the first extrusion part and the second extrusion part is reduced, the medium in the pressure receiving part enters the inside of the second extrusion part through the communication part to form a pressure mark on the lower surface of the waste paper edge. The first extrusion part comprises a first rotating shaft arranged above the paper feeding frame, the first rotating shaft is provided with symmetrically distributed first rotating wheels, and the paper feeding frame is provided with a through slot corresponding to the position of the first rotating wheels; Both ends of the first rotating shaft are provided with moving blocks, and the moving blocks can reciprocate in a direction perpendicular to the paper feeding frame. The second extrusion part comprises a second rotating shaft arranged below the first extrusion part, both ends of the second rotating shaft are provided with fixed blocks, the second rotating shaft is provided with symmetrically distributed second rotating wheels, and the positions of the second rotating wheels correspond to the first rotating wheels. The adjusting part comprises a cavity opened in the inside of the second rotating wheel, the outside of the cavity is provided with a movable groove, the inside of the movable groove is elastically connected with a rib plate, and the rib plate can move axially in the movable groove. The communication part comprises an air channel opened in the second rotating shaft, and the air channel is in communication with the cavity; The bottom of the pressure receiving part is provided with a conduit, and the other end of the conduit is in communication with the air channel.

2. The corrugated paper cutting device with a waste recycling function according to claim 1, characterized in that, An elastic part is arranged between the fixed blocks and the moving blocks, the bottom of the elastic part is provided with a suction accessory, and the suction accessory is used to adjust the distance between the fixed blocks and the moving blocks. The suction accessory comprises a collection box arranged on the paper feeding frame, the outside of the collection box is provided with a negative pressure suction device, and the other side of the collection box is provided with a first suction pipe and a second suction pipe; 3. The corrugated paper cutting device with a waste recycling function according to claim 2, characterized in that, One end of the first suction pipe away from the collection box is located below the cutting part to suck the waste paper scraps; the other end of the second suction pipe away from the collection box is connected with the elastic part, the power of the negative pressure suction device is adjusted to change the suction force of the second suction pipe on the elastic part, and then the distance between the fixed blocks and the moving blocks is adjusted.

4. The corrugated paper cutting device with a waste recycling function according to claim 3, characterized in that, The guide comprises a rotating shaft arranged above the paper feeding frame, the rotating shaft is provided with symmetrically distributed guide wheels, and a conveying wheel is arranged between the two guide wheels; 5. The corrugated paper cutting device with a waste recycling function according to claim 4, characterized in that, The paper feeding frame is provided with a guide slot corresponding to the guide wheels, and the guide slot is used to guide the waste paper edge into the inside of the storage box. A transmission part is arranged between the guide and the second extrusion part, and the transmission part is used to drive the guide and the second extrusion part to rotate synchronously.

6. The corrugated paper cutting device with a waste recycling function according to claim 3, characterized in that, A detection part is arranged at the entrance of the paper feeding frame, and the detection part is used to detect the thickness of the paper entering the paper feeding frame.

7. The corrugated paper cutting device with a waste recycling function according to claim 6, characterized in that, ​ ​ 8. The corrugated paper cutting device with a waste recycling function according to claim 1, characterized in that, ​ ​ 9. The corrugated paper cutting device with a waste recycling function according to claim 7, characterized in that, ​ 10. The corrugated paper cutting device with a waste recycling function according to claim 7, characterized in that, ​

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