Cutting device for corrugated paper production and cutting method thereof

Abstract

The invention relates to the technical field of corrugated paper cutting and particularly discloses a cutting device for corrugated paper production and a cutting method.The cutting device comprises a rack, a conveying mechanism and a cutting mechanism are arranged on the rack, and the cutting mechanism comprises a first rotating roller, a second rotating roller and a driving assembly; the conveying mechanism is used for conveying paperboards to pass between the first rotating roller and the second rotating roller, a plurality of first cutters are arranged in the axial direction of the first rotating roller at intervals, a plurality of second cutters are arranged in the axial direction of the second rotating roller at intervals, and the driving assembly drives the first rotating roller and the second rotating roller to rotate relatively. The first cutters and the second cutters are staggered and opposite when rotating to make contact with the paperboard, the cutting method comprises the steps of preparation work, parameter setting, cutting and collection, the cutting device and the cutting method reduce the local stress effect borne by the paperboard during cutting, and the cutting quality of the paperboard is improved.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated paper cutting, and in particular to a cutting device for corrugated paper production and a cutting method thereof. Background Art

[0002] During the production process of corrugated boxes, it is necessary to cut the corrugated paper according to the design requirements. In related technologies, corrugated paper is often cut by a cutter. The corrugated paper is conveyed to the cutting position of the cutter through a conveyor belt. The tool of the cutter cuts the corrugated paper at a predetermined position. When the tool cuts the corrugated paper, the continuous pressure of the cutter will cause the edge of the corrugated paper to collapse at the cutting position, affecting the cutting quality and supporting effect of the corrugated paper.

[0003] The patent document with the authorization announcement number CN115070829B discloses a corrugated cardboard cutting device, which includes a frame, a horizontal conveying channel is provided at one end of the frame, a conveying motor is provided at the conveying channel, a flap is provided at the output end of the frame corresponding to the conveying channel, the top of the flap is flush with the top of the conveying channel, a position sensor is provided at the end of the frame corresponding to the flap away from the conveying channel, and the frame is also provided with an electric push rod for flipping the flap up and down; a sliding knife group, the sliding knife group is arranged above the output end of the conveying channel, and includes a cutter that shuttles horizontally between the conveying channel and the flap, and a cutting motor that drives the cutter to move; the corrugated cardboard stops after reaching the flap area, and then the cutter cuts the corrugated cardboard, the flap changes its angle to bend the corrugated cardboard, and exposes the cutting seam, and is finally cut by the cutter after multiple cuttings at different depth levels, and at the same time, after the primary cutter completes the shallow cutting, high-temperature steam is sprayed into the cut seam through the steam nozzle, and the moist steam promotes the cut seam to expand outward, which is convenient for the secondary cutter to extend, and reduces the influence of the secondary cutter on the edge of the shallow cut seam due to the change of cutting depth.

[0004] The corrugated cardboard cutting device provided in the above patent document repeatedly cuts the corrugated paper from shallow to deep through multiple cutters of different depth levels to avoid squeezing the corrugated cardboard cutting position during the cutting operation. In the production process of corrugated cardboard boxes, the cutting device completes a large amount of cutting work per unit time. If the cutting device provided in the above patent document is used, multiple cutting actions are required to complete a cutting operation, which will reduce the cutting efficiency of the corrugated cardboard. Therefore, it is necessary to provide a corrugated paper cutting device to improve the cutting quality of corrugated paper while ensuring the cutting efficiency of corrugated paper. Summary of the invention

[0005] The present invention provides a cutting device for corrugated paper production and a cutting method thereof, aiming to solve the problem that the cutting efficiency of corrugated paper is reduced when the cutting device in the related art cuts the corrugated paper through multiple cutting operations at different depth levels.

[0006] The present invention discloses a cutting device for corrugated paper production, comprising a frame, a conveying mechanism being arranged on the frame, and a cutting mechanism being arranged on the frame, wherein the cutting mechanism comprises a rotating roller 1, a rotating roller 2 and a driving assembly, wherein the conveying mechanism is used for conveying paperboard to pass between the rotating roller 1 and the rotating roller 2, wherein the rotating roller 1 is provided with a plurality of cutters 1 at intervals on its axial direction, and the rotating roller 2 is provided with a plurality of cutters 2 at intervals on its axial direction, and the driving assembly drives the rotating roller 1 and the rotating roller 2 to rotate relative to each other, and each of the cutters 1 and each of the cutters 2 rotates to contact with the paperboard so as to be staggered and relative to each other.

[0007] To reduce the risk of edge collapse at the cutting position of the cardboard during the cutting operation, the rotating roller 1 and the rotating roller 2 rotate in opposite directions, and the first and second knives rotate to contact the cardboard and are staggered and opposite to each other. The rotating roller 1 drives the first knives to cut the cardboard from the upper side of the cardboard, and the rotating roller 2 drives the second knives to cut the cardboard from the upper side of the cardboard. When the knives 1 and 2 cooperate to cut the cardboard, an intermittent incision is formed at the cutting position of the cardboard, which greatly reduces the local stress on the corrugated cardboard, reduces the local pressure and stress on the cardboard during the cutting process, and thus reduces the risk of edge collapse at the cutting position of the cardboard; In addition, compared with the method of cutting the cardboard multiple times by cutting operations at different depth levels in the related art, the cutting mechanism can complete the cutting operation of the cardboard with one cutting action, reducing the risk of cardboard edge collapse while improving cutting efficiency.

[0008] Preferably, the cutting mechanism also includes two groups of dust removal components, the two groups of dust removal components are respectively arranged inside the rotating roller one and the rotating roller two, the dust removal components include a collecting cylinder and a plurality of dust collecting parts, the collecting cylinder is arranged in parallel with the rotating roller one or the rotating roller two, each of the dust collecting parts is respectively arranged in the gap between each of the tools one and the tool two, one end of the dust collecting part extends into the rotating roller one or the rotating roller two and docks with the collecting cylinder, the other end of the dust collecting part extends to the outside of the rotating roller one or the rotating roller two, and the collecting cylinder is also connected to an exhaust device.

[0009] The debris generated by cutting should be collected in time to ensure the normal cardboard cutting operation. When the vacuum equipment is working, the gas in the collection tube is sucked to form a relatively negative pressure environment in the collection tube. The debris generated by cutting passes through the collecting parts under the action of negative pressure and enters the collection tube, reducing the obstruction of the debris to the contact between the tool and the cardboard, ensuring the cutting quality of the tool during continuous operation; at the same time, the dust removal component can also produce a certain adsorption effect on the cardboard during the cutting operation, reducing the displacement of the cardboard caused by the cutting action, ensuring the stability of the cardboard cutting process, and further improving the flatness of the cardboard cutting.

[0010] Preferably, the rotating roller one and the rotating roller two are provided with a plurality of notches, each of the notches is provided at the gap between the tool one or the tool two, the side wall of the collecting cylinder is provided with a plurality of connecting holes which are opposite to each notch one by one, the dust collecting part is provided in the notch, and the inner end of the dust collecting part is opposite to the connecting hole in the notch.

[0011] Preferably, the dust collecting piece is movably matched with the notch, the outer end of the dust collecting piece extends to the outside of the rotating roller one and the rotating roller two, and movably abuts against the outer side walls of the rotating roller one and the rotating roller two, and the dust collecting piece is deformed by force.

[0012] Preferably, each of the dust collecting parts of the dust removal assembly in the same group is fixed by a plurality of connecting rods, and each of the connecting rods is slidably matched with the rotating roller one or the rotating roller two. An assembly hole is opened on the frame, and the rotating roller one and the rotating roller two extend into the assembly hole and rotatably match with the assembly hole. A guide groove is also provided on the frame, and the guide groove is ring-arranged on the outer peripheral side of the assembly hole. The connecting rod extends into the guide groove and slidably matches with the guide groove, and the two guide grooves are recessed in the axial direction at their adjacent ends.

[0013] The dust collecting piece improves the effect of collecting debris. During the cutting operation, the outer end of the dust collecting piece is as close to the cutting position of the cardboard as possible. The dust collecting piece can be made of flexible material. The dust collecting piece deforms when squeezed. When collecting the debris, as the tool one and the tool two gradually approach each other, the dust collecting piece adapts to the change in the distance between it and the cardboard, and the length of the protruding notch is reduced, so that the end of the dust collecting piece is fully close to the cutting position of the cardboard.

[0014] Preferably, the collecting cylinder is rotatably matched with the rotating roller one or the rotating roller two, the collecting cylinder extends to the outside of the rotating roller one or the rotating roller two, and a plurality of teeth are arranged around the outside of its end, and a plurality of driving teeth are arranged on the inner wall of the adjacent side of the two assembly holes, each of the driving teeth is distributed along an arc, and the teeth of the collecting cylinder are meshed with the driving teeth at intervals.

[0015] To prevent the debris remaining in the collecting cylinder from escaping to the outside through the dust collecting piece in the process of the collecting cylinder rotating with the rotating roller one or the rotating roller two, the teeth of the collecting cylinder are meshed with the driving teeth at intervals, that is, when the collecting cylinder rotates with the rotating roller one or the rotating roller two until it meshes with the driving teeth, it rotates around its own axis until the connecting hole and the notch are butted or staggered, so that the connecting hole on the collecting cylinder can be opposite to the collecting piece during the cardboard cutting operation.

[0016] Preferably, the driving assembly includes a driving source, a driving wheel and a transmission wheel, the driving source is installed on the frame, the driving end of the driving source is connected to the driving wheel, the driving wheel is meshed with the transmission wheel, and the driving wheel and the transmission wheel are separately connected to the rotating roller one and the rotating roller two respectively.

[0017] Preferably, the blade of the tool 1 is spaced apart to have different cutting depths.

[0018] The blade of the first cutter is arranged with different cutting depths at intervals, so that the first cutter produces an intermittent cutting operation on the cardboard when cutting the cardboard, further reducing the local stress effect on the cardboard during the cutting operation.

[0019] Preferably, the first cutter and the first rotating roller are detachably connected, and the second cutter and the second rotating roller are detachably connected.

[0020] A cutting method for corrugated paper production comprises the following steps: S1, preparation work, checking the working state of the cutting device provided by the present invention, preparing the cardboard to be cut, and determining the cutting size; S2, setting parameters, adjusting relevant parameters of the cutting device provided by the present invention according to design requirements; S3, cutting, starting the cutting device provided by the present invention, evenly feeding the prepared cardboard to the conveying mechanism of the cutting device, and conveying the cardboard to the cutting mechanism for cutting operation; S4: Collect and sort the cut cardboards for the next step.

[0021] When the tool one and the tool two cooperate to cut the cardboard, an intermittent incision is formed at the cutting position of the cardboard, which greatly reduces the local stress on the corrugated cardboard, reduces the local pressure and stress on the cardboard during the cutting process, and reduces the risk of cardboard edge collapse at the cutting position. At the same time, the cutting mechanism can complete the cutting operation of the cardboard through one cutting action, reducing the risk of cardboard edge collapse while improving the cutting efficiency.

[0022] The beneficial effects of the present invention are: (1) Reduce the risk of edge collapse at the cutting position of the cardboard. The rotating roller 1 and the rotating roller 2 rotate in opposite directions. The cutters 1 and 2 rotate to contact the cardboard and are staggered and opposite to each other. The rotating roller 1 drives the cutter 1 to cut the cardboard from the upper side of the cardboard at intervals. The rotating roller 2 drives the cutter 2 to cut the cardboard from the upper side of the cardboard at intervals. When the cutter 1 and the cutter 2 cooperate to cut the cardboard, an intermittent incision is formed at the cutting position of the cardboard, which greatly reduces the local stress on the corrugated cardboard, reduces the local pressure and stress on the cardboard during the cutting process, and thus reduces the risk of edge collapse at the cutting position of the cardboard; In addition, compared with the method of cutting the cardboard multiple times by cutting operations at different depth levels in the related art, the cutting mechanism can complete the cutting operation of the cardboard with one cutting action, reducing the risk of cardboard edge collapse while improving cutting efficiency.

[0023] (2) The debris generated by cutting should be collected in time to ensure the normal cardboard cutting operation. When the vacuum equipment is working, the gas in the collection tube is sucked to form a relatively negative pressure environment in the collection tube. The debris generated by cutting passes through the collection parts under the action of negative pressure and enters the collection tube, reducing the obstruction of the debris to the contact between the tool and the cardboard, ensuring the cutting quality of the tool during continuous operation; at the same time, the dust removal component can also produce a certain adsorption effect on the cardboard during the cutting operation, reducing the displacement of the cardboard caused by the cutting action, ensuring the stability of the cardboard cutting process, and further improving the flatness of the cardboard cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 It is a structural schematic diagram of the present invention when the rotating roller 1 and the rotating roller 2 cooperate to cut the paperboard.

[0026] Figure 3 yes Figure 2 Enlarged view of part A.

[0027] Figure 4 It is a structural schematic diagram of the dust removal component, the second rotating roller and the frame in the present invention.

[0028] Figure 5 yes Figure 4 Enlarged view of part B.

[0029] Figure 6 It is a structural schematic diagram of the arrangement of the assembly holes and the guide grooves relative to the frame in the present invention.

[0030] Figure 7 It is a structural schematic diagram of the dust removal component in the present invention.

[0031] Reference numerals: 1. Frame; 11. Conveying mechanism; 12. Guide roller; 13. Assembly hole; 131. Guide groove; 132. Driving tooth; 2. Driving source; 21. Driving wheel; 22. Transmission wheel; 23. Rotating roller 1; 231. Tool 1; 24. Rotating roller 2; 241. Tool 2; 3. Collecting cylinder; 31. Dust collecting part; 32. Connecting rod; 321. Movable groove; 33. Connecting hole; 34. Exhaust device; 4. Cardboard. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] like Figure 1 and Figure 2 As shown, the cutting device for corrugated paper production of the present invention comprises a frame 1, on which a conveying mechanism 11 and a cutting mechanism are provided. The conveying mechanism 11 conveys the cardboard 4 to be cut to the position where the cutting mechanism is located, and the cutting mechanism performs a cutting operation on the cardboard 4. The conveying mechanism 11 can adopt a conveyor belt structure. In order to improve the conveying effect of the cardboard 4 and reduce the warping of the cardboard 4 during the conveying process, a guide roller 12 can also be provided on the frame 1. The guide roller 12 is rotatably matched with the frame 1. The guide roller 12 is located on the upper side of the conveyor belt of the conveying mechanism 11 and is in contact with the upper end surface of the cardboard 4. In the operation of cutting the cardboard 4, the conveying speed of the conveying mechanism 11 and the cutting frequency of the cutting mechanism can be adjusted according to the cutting design requirements of the cardboard 4 to cut the cardboard 4 to a specified size.

[0034] The cutting mechanism includes a rotating roller 23, a rotating roller 24 and a driving assembly. The rotating roller 23 is located on the upper side of the rotating roller 24. The rotating roller 23 is provided with a plurality of cutter 1s 231 at intervals on its axial direction. The rotating roller 24 is provided with a plurality of cutter 2s 241 at intervals on its axial direction. The driving assembly drives the rotating roller 23 and the rotating roller 24 to rotate relative to each other. The driving assembly includes a driving source 2, a driving wheel 21 and a transmission wheel 22. The driving source 2 is installed on the frame 1. The driving end of the driving source 2 is connected to the driving wheel 21. The driving wheel 21 is meshed with the transmission wheel 22. The driving wheel 21 and the transmission wheel 22 are separately connected to the rotating roller 23 and the rotating roller 24. In this embodiment, the driving wheel 21 is fixed to the rotating roller 23, and the transmission wheel 22 is fixed to the rotating roller 24.

[0035] like Figure 2 and Figure 3As shown, the driving source 2 can be a motor. When the driving source 2 is working, it drives the driving wheel 21 and the transmission wheel 22 to rotate in opposite directions, thereby driving the rotating roller 1 23 and the rotating roller 24 to rotate in opposite directions. When each tool 1 231 and each tool 2 241 rotate to contact the cardboard 4, they are staggered and opposite to each other. The rotating roller 1 23 drives the tool 1 231 to cut the cardboard 4 from the upper side of the cardboard 4 at intervals, and the rotating roller 24 drives the tool 2 241 to cut the cardboard 4 from the upper side of the cardboard 4 at intervals. When the tool 1 231 and the tool 2 241 cooperate to cut the cardboard 4, an intermittent incision is formed at the cutting position of the cardboard 4, which greatly reduces the local stress on the corrugated cardboard 4, reduces the local pressure and stress on the cardboard 4 during the cutting process, and thereby reduces the risk of edge collapse at the cutting position of the cardboard 4. In addition, compared with the method of cutting the cardboard 4 multiple times by cutting operations at different depth levels in the related art, the cutting mechanism can complete the cutting operation of the cardboard 4 through one cutting action, reducing the risk of edge collapse of the cardboard 4 while improving the cutting efficiency.

[0036] In order to further reduce the local stress on the cardboard 4 during the cutting operation, the blade of the tool 1 231 is set with different cutting depths at intervals, so that the tool 1 231 produces an intermittent cutting operation on the cardboard 4 when cutting the cardboard 4. Similarly, the blade of the tool 2 241 can also be set with different cutting depths at intervals.

[0037] In the actual production process, the thickness of the cardboard 4 to be cut may vary. In order to meet the cutting requirements of cardboards 4 of different thicknesses, it is necessary to adjust the installation angles of the cutter 1 231 and the cutter 2 241 relative to the rotating roller 1 23 and the rotating roller 2 24, or replace the cutter 1 231 and the cutter 2 241 of different models. For the convenience of operation, the cutter 1 231 and the rotating roller 1 23 as well as the cutter 2 241 and the rotating roller 2 24 can be provided with a detachable connection structure, which can be specifically fixed by bolts. In order to improve the disassembly, assembly and adjustment efficiency of the cutter 1 231 and the cutter 2 241, each cutter 1 231 is detachably connected to the same connecting member 1, the connecting member 1 is detachably connected to the rotating roller 1 23, each cutter 241 is detachably connected to the same connecting member 2, and the connecting member 2 is detachably connected to the rotating roller 2 24, so that each cutter 1 231 or each cutter 2 241 can be replaced or adjusted as a whole.

[0038] It is inevitable that some debris will be generated during the cutting process of the cardboard 4. The generated debris adheres to the tool, which will affect its cutting operation, hinder the contact between the tool and the cardboard 4, and affect the flatness of the cutting surface. The attached debris will also make the tool blunt, increase the cutting resistance, and reduce the cutting speed and efficiency. The presence of debris will aggravate the wear of the tool and shorten the service life of the tool. In order to ensure the cutting quality of the tool during continuous work, the debris generated by cutting needs to be cleaned up in time.

[0039] like Figures 2 to 7As shown, the cutting mechanism also includes two groups of dust removal components, which are respectively arranged inside the rotating roller 1 23 and the rotating roller 24. The dust removal components include a collecting cylinder 3 and a plurality of dust collecting parts 31. The collecting cylinder 3 is arranged in parallel with the rotating roller 1 23 or the rotating roller 24 eccentrically. A groove body adapted to the collecting cylinder 3 is opened on the rotating roller 1 23 and the rotating roller 24. The collecting cylinder 3 is installed in the groove body and fits with the inner wall of the groove body. A plurality of connecting holes 33 are arranged at intervals on the collecting cylinder 3. A plurality of notches are arranged on the rotating roller 1 23 and the rotating roller 24. Each notch is opposite to each connecting hole 33 one by one. The dust collecting piece 31 is respectively arranged in each notch, and the inner end of the dust collecting piece 31 is opposite to the connecting hole 33. The dust collecting piece 31 is connected with the inside of the collecting tube 3 through the connecting hole 33. The other end of the dust collecting piece 31 extends to the outside of the rotating roller 1 23 and the rotating roller 2 24 through the notch. The collecting tube 3 is also connected with an exhaust device 34, and the exhaust device 34 is sealed and rotated with the end of the collecting tube 3. When the exhaust device 34 is working, the gas in the collecting tube 3 is sucked to form a relatively negative pressure environment in the collecting tube 3. The debris generated by cutting passes through each collecting piece under the action of negative pressure and enters the collecting tube 3.

[0040] When cutting the cardboard 4, the rotating roller 1 23 and the rotating roller 2 24 rotate to the operation in which the tool 1 231 and the tool 2 241 are relative to each other, and the gap between the end of the notch and the cardboard 4 changes. To ensure the dust collecting piece 31's collection effect on the debris, the outer end of the dust collecting piece 31 is made sufficiently close to the cutting position of the cardboard 4 during the cutting operation. The dust collecting piece 31 can be made of a flexible material, and the dust collecting piece 31 deforms when squeezed. The material of the dust collecting piece 31 includes but is not limited to polyethylene and rubber. The outer end of the dust collecting piece 31 can be corrugated, and the edge of the outer end of the dust collecting piece 31 is movably abutted against the end of the notch, and the dust collecting piece 31 will not enter the inside of the notch. When collecting the debris, as the tool 1 231 and the tool 2 241 gradually approach each other, the dust collecting piece 31 adapts to the change in the distance between it and the cardboard 4, and the length extending out of the notch is reduced.

[0041] To achieve the above operation, any two adjacent dust collecting parts 31 in the same dust removal assembly are connected by a connecting rod 32, and movable grooves 321 corresponding to the connecting rods 32 are provided on the rotating roller 1 23 and the rotating roller 2 24, and the connecting rod 32 is slidably matched with the movable groove 321, and the connecting rod 32 drives the dust collecting part 31 to slide in the notch when sliding along the movable groove 321, and the frame 1 is provided with an assembly hole 13, and the rotating roller 1 23 and the rotating roller 2 24 extend into the assembly hole 13 and rotatably match with the assembly hole 13, and the frame 1 is also provided with a guide The guide groove 131 is annularly arranged on the outer peripheral side of the assembly hole 13, and the connecting rod 32 extends into the guide groove 131 and slides with the guide groove 131. The two guide grooves 131 are recessed at their adjacent ends toward their axial directions. When the rotating roller 1 23 and the rotating roller 2 24 rotate, the collecting cylinder 3 and the connecting rod 32 rotate therewith, and the connecting rod 32 slides with the guide groove 131. After the connecting rod 32 moves to the recessed position of the guide groove 131, the outer end of the dust collecting part 31 is pulled gradually close to the outer end of the notch.

[0042] In addition to timely collecting the debris generated during the cutting process and ensuring the normal operation of the tool, the adsorption effect of the dust removal component can also produce a certain adsorption effect on the cardboard 4 during the cutting operation, reduce the displacement of the cardboard 4 caused by the cutting action, ensure the stability of the cardboard 4 during the cutting process, and further improve the cutting quality of the cardboard 4.

[0043] In order to prevent the debris remaining in the collecting barrel 3 from escaping to the outside through the dust collecting piece 31 in the process of the collecting barrel 3 rotating with the rotating roller 1 23 or the rotating roller 24, the collecting barrel 3 can be arranged to rotate relative to the trough body on which it is installed, so that after the dust collecting piece 31 is away from the cutting position, the connecting hole 33 on the collecting barrel 3 avoids the notch. Specifically, the collecting barrel 3 extends to the outside of the rotating roller 1 23 and the rotating roller 2 24, and a plurality of teeth are arranged around the outside of the end thereof, and a plurality of driving teeth 132 are provided on the inner wall of the adjacent side of the two assembly holes 13, and each driving tooth 132 is distributed along an arc, and the teeth of the collecting barrel 3 are meshed with the driving teeth 132 at intervals, that is, when the collecting barrel 3 rotates with the rotating roller 1 23 or the rotating roller 2 24 until it meshes with the driving teeth 132, it rotates around its own axial direction until the connecting hole 33 is docked with or staggered with the notch.

[0044] A cutting method for corrugated paper production comprises the following steps: S1, preparation work, check the working status of the cutting device, prepare the cardboard 4 to be cut, and determine the cutting size; S2, setting parameters, adjusting the relevant parameters of the cutting device according to the design requirements, that is, adjusting the conveying speed of the conveying mechanism 11, the rotation speed of the rotating roller 1 23 and the rotating roller 2 24 in the cutting mechanism; S3, cutting, start the cutting device, evenly feed the prepared cardboard 4 to the conveying mechanism 11 of the cutting device, and convey the cardboard 4 to the cutting mechanism for cutting. Keep an eye on the cutting process to ensure that the cutter is not offset or stuck; S4, collecting, classifying and arranging the cut cardboards 4, and preparing them for the next step.

[0045] The cutting device for corrugated paper production and the cutting method thereof provided by the present invention effectively improve the cutting effect of the cardboard. Through the intermittent cutting operation of the first cutter and the second cutter, the local stress on the cardboard during cutting is reduced, and the possibility of the cardboard edge collapse at the cutting position is reduced. At the same time, the dust removal component collects the debris generated during cutting in time, which ensures the normal cutting work of the cutter and improves the relative stability of the cutter and the cardboard, effectively ensuring the flatness of the cutting position.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A cutting device for corrugated paper production, comprising a frame (1), on which a conveying mechanism (11) is provided, characterized in that: The frame (1) is also provided with a cutting mechanism, which comprises a rotating roller 1 (23), a rotating roller 2 (24) and a driving assembly. The conveying mechanism (11) is used to convey the paperboard (4) through between the rotating roller 1 (23) and the rotating roller 2 (24). The rotating roller 1 (23) is provided with a plurality of first knives (231) at intervals on its axial direction. The rotating roller 2 (24) is provided with a plurality of second knives (241) at intervals on its axial direction. The driving assembly drives the rotating roller 1 (23) and the rotating roller 2 (24) to rotate relative to each other. When the first knives (231) and the second knives (241) rotate to contact with the paperboard (4), they are staggered and relative to each other.

2. The cutting device for corrugated paper production according to claim 1, characterized in that: The cutting mechanism further comprises two groups of dust removal components, the two groups of dust removal components are respectively arranged inside the rotating roller one (23) and the rotating roller two (24), the dust removal components comprising a collecting cylinder (3) and a plurality of dust collecting members (31), the collecting cylinder (3) being arranged eccentrically and in parallel with the rotating roller one (23) or the rotating roller two (24), each dust collecting member (31) being respectively arranged at a gap between each knife one (231) and each knife two (241), one end of the dust collecting member (31) extending into the rotating roller one (23) or the rotating roller two (24) to dock with the collecting cylinder (3), the other end of the dust collecting member (31) extending to the outside of the rotating roller one (23) or the rotating roller two (24), the collecting cylinder (3) being further connected to an exhaust device (34).

3. The cutting device for corrugated paper production according to claim 2, characterized in that: A plurality of notches are provided on the rotating roller 1 (23) and the rotating roller 2 (24), each notch being provided at a gap between the first cutter (231) or the second cutter (241). A plurality of connecting holes (33) are provided on the side wall of the collecting cylinder (3) and are opposite to the notches one by one. The dust collecting member (31) is provided in the notch, and the inner end of the dust collecting member (31) is opposite to the connecting hole (33) in the notch.

4. The cutting device for corrugated paper production according to claim 3, characterized in that: The dust collecting member (31) is movably engaged with the notch, and the outer end of the dust collecting member (31) extends to the outside of the rotating roller 1 (23) and the rotating roller 2 (24), and movably abuts against the outer side walls of the rotating roller 1 (23) and the rotating roller 2 (24), so that the dust collecting member (31) is deformed by force.

5. The cutting device for corrugated paper production according to claim 4, characterized in that: The dust collecting parts (31) of the same dust removal assembly are fixed by a plurality of connecting rods (32), and each connecting rod (32) is slidably matched with the first rotating roller (23) or the second rotating roller (24). The frame (1) is provided with an assembly hole (13), and the first rotating roller (23) and the second rotating roller (24) extend into the assembly hole (13) and rotatably match with the assembly hole (13). The frame (1) is also provided with a guide groove (131), and the guide groove (131) is arranged around the outer peripheral side of the assembly hole (13). The connecting rod (32) extends into the guide groove (131) and slidably matches with the guide groove (131), and the two guide grooves (131) are recessed in the direction toward their axial direction at their adjacent ends.

6. The cutting device for corrugated paper production according to claim 5, characterized in that: The collecting cylinder (3) is rotatably matched with the first rotating roller (23) or the second rotating roller (24). The collecting cylinder (3) extends to the outside of the first rotating roller (23) or the second rotating roller (24), and a plurality of teeth are arranged around the outside of the end of the collecting cylinder. A plurality of driving teeth (132) are arranged on the inner wall of the adjacent side of the two assembly holes (13). The driving teeth (132) are distributed along an arc, and the teeth of the collecting cylinder (3) are meshed with the driving teeth (132) at intervals.

7. The cutting device for corrugated paper production according to claim 1, characterized in that: The driving assembly comprises a driving source (2), a driving wheel (21) and a transmission wheel (22); the driving source (2) is mounted on the frame (1); a driving end of the driving source (2) is connected to the driving wheel (21); the driving wheel (21) is meshed with the transmission wheel (22); the driving wheel (21) and the transmission wheel (22) are respectively connected to a first rotating roller (23) and a second rotating roller (24).

8. The cutting device for corrugated paper production according to claim 1, characterized in that: The blades of tool 1 (231) are spaced apart to provide different cutting depths.

9. The cutting device for corrugated paper production according to claim 1, characterized in that: The first cutter (231) and the first rotating roller (23) are detachably connected, and the second cutter (241) and the second rotating roller (24) are detachably connected.

10. A cutting method for corrugated paper production, characterized in that: The following steps are involved: S1, preparation work, checking the working state of the cutting device according to any one of claims 1 to 9, preparing the cardboard (4) to be cut, and determining the cutting size; S2. Setting parameters, adjusting relevant parameters of the cutting device according to any one of claims 1 to 9 according to design requirements; S3, cutting, starting the cutting device according to any one of claims 1 to 9, evenly feeding the prepared cardboard (4) to the conveying mechanism (11) of the cutting device, and conveying the cardboard (4) to the cutting mechanism for cutting; S4: Collect and sort the cut cardboards (4) to prepare for the next process.

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