Paper leakage collecting device for large rotary paper cutter

CN224714025UActive Publication Date: 2026-09-04广东普昇驰智能装备有限公司
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Patent Information

Application Number
CN202521613922.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-30
Publication Date
2026-09-04
Estimated Expiration
2035-07-30

AI Technical Summary

Technical Problem

现有的大回旋切纸机在切纸过程中往往不能兼顾加工后对纸屑的收集工作,导致裁切现场产生的纸屑到处散落,污染工作环境

Benefits of technology

[0016] The paper collection device for a large rotary paper cutter involved in this utility model has a collection funnel that ensures that the paper scraps generated after cutting can be effectively guided to the collection conveyor, reducing paper scrap scattering and pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a big gyration paper cutting machine is with paper leakage collection device, including frame, install on the conveyance subassembly of frame, paper cutting subassembly and paper scrap collection subassembly, the conveyance subassembly is including install on the first conveyance spare of frame, install on the second conveyance spare of first conveyance spare one end, be equipped with paper cutting channel between first conveyance spare with second conveyance spare, paper cutting subassembly includes the movable element of installing on frame, install on the paper cutting spare of movable element, paper scrap collection subassembly includes the collection conveyance spare of installing on frame, install on the collection element of collection conveyance spare, the paper cutting spare is used for cutting the paper spare on paper cutting channel and carries out the section, the collection element includes the support plate of installing on the both sides of collection conveyance spare, install on the collection hopper of support plate, the big gyration paper cutting machine is with paper leakage collection device of the utility model, can reduce paper scrap and pollute scattering.
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Description

Technical Field

[0001] This utility model relates to the field of paper cutting equipment technology, and in particular to a paper leakage collection device for a large rotary paper cutter. Background Technology

[0002] Currently, large rotary paper cutters are widely used in the paper processing industry to cut continuous paper into predetermined lengths or shapes. However, existing large rotary paper cutters often cannot simultaneously collect paper scraps after processing, resulting in paper scraps scattered everywhere at the cutting site, polluting the working environment. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a paper leakage collection device for a large rotary paper cutter that can prevent paper scraps from scattering.

[0004] The present invention adopts the following technical solution:

[0005] A paper scrap collection device for a large rotary paper cutter includes a frame, a conveying assembly, a paper cutting assembly, and a paper scrap collection assembly mounted on the frame. The conveying assembly includes a first conveyor mounted on the frame and a second conveyor mounted at one end of the first conveyor. A paper cutting channel is provided between the first and second conveyors. The paper cutting assembly includes a movable part mounted on the frame and a paper cutting component mounted on the movable part. The paper scrap collection assembly includes a collecting conveyor mounted on the frame and a collecting component mounted on the collecting conveyor. The paper cutting component is used to cut the paper in the paper cutting channel into segments. The collecting component includes support plates mounted on both sides of the collecting conveyor and a collecting funnel mounted on the support plates. The upper end of the collecting funnel is positioned opposite to the collecting conveyor to collect paper scraps generated by the cutting of the paper, and the other end is positioned opposite to the paper cutting channel to guide the paper scraps to the collecting conveyor.

[0006] Furthermore, the collecting component also includes a cutting channel and a discharge channel disposed on the collecting funnel; the discharge channel is disposed opposite to the cutting channel; the conveying direction of the collecting conveyor is disposed towards the discharge channel.

[0007] Furthermore, the collecting conveyor is a collecting conveyor belt installed on the frame; the support plate is installed on both sides of the collecting conveyor belt; the transport direction of the collecting conveyor belt is horizontal to the downward cutting direction of the paper cutter.

[0008] Furthermore, the collecting conveyor is a collecting conveyor belt installed on the frame; the support plate is installed on both sides of the collecting conveyor belt; the transport direction of the collecting conveyor belt is perpendicular to the downward cutting direction of the paper cutter.

[0009] Furthermore, the first conveying component includes a first conveying support frame mounted on the frame, a first conveyor belt mounted on the first conveying support frame, a first conveying drive motor for driving the first conveyor belt to move, and a first baffle plate mounted on the first conveying support frame; there are two first baffle plates, and the two first baffle plates are respectively mounted on both sides of the first conveyor belt.

[0010] Furthermore, the second conveying component includes a second conveying support frame mounted on the frame, a second conveyor belt mounted on the second conveying support frame, a second conveying drive motor for driving the movement of the second conveyor belt, and a second baffle plate mounted on the second conveying support frame; there are two second baffle plates, which are respectively mounted on both sides of the second conveyor belt.

[0011] Furthermore, the paper cutting assembly also includes a sharpening tool mounted on the movable component; the movable component includes a fixed bearing mounted on the frame, a rotating outer tube mounted in the fixed bearing, a swing arm mounted on the rotating outer tube, and a swing motor mounted on the frame; the swing motor is configured to be drivenly connected to the rotating outer tube.

[0012] Furthermore, the paper cutting component includes a rotating inner tube installed inside the rotating outer tube, a first transmission gear installed at one end of the rotating inner tube, a second transmission gear installed at the other end of the first transmission gear, a transmission part installed on the second transmission gear, a paper cutting blade installed on the second transmission gear, and a paper cutting motor installed on the frame; the paper cutting motor is configured to be connected to the first transmission gear in a transmission connection.

[0013] Furthermore, the sharpening component includes a sharpening slide rail mounted on the swing arm, a sharpening slider mounted on the sharpening slide rail, a sharpening stone mounted on the sharpening slider, and a sharpening pusher mounted on the swing arm.

[0014] Furthermore, the transmission unit includes a transmission bearing mounted on the swing arm, a third transmission gear mounted on the transmission bearing, and a transmission belt connecting the second transmission gear and the third transmission gear; the paper cutter is mounted on one end of the third transmission gear.

[0015] The beneficial effects of this utility model are as follows:

[0016] The paper collection device for a large rotary paper cutter involved in this utility model has a collection funnel that ensures that the paper scraps generated after cutting can be effectively guided to the collection conveyor, reducing paper scrap scattering and pollution. Attached Figure Description

[0017] Figure 1This is a perspective view of a paper collection device for a large rotary paper cutter according to an embodiment of the present invention;

[0018] Figure 2 This is a three-dimensional schematic diagram of the paper leakage collection device for the large rotary paper cutter in Embodiment 2;

[0019] Figure 3 for Figure 1 Exploded view of the sharpening assembly of the paper collection device for a large rotary paper cutter;

[0020] Figure 4 for Figure 1 Exploded view of the paper scrap collection component of a paper scrap collection device for a large rotary paper cutter;

[0021] Figure 5 for Figure 1 A three-dimensional schematic diagram of the conveying component of the paper collection device for a large rotary paper cutter;

[0022] Figure 6 for Figure 1 Exploded view of the paper cutting assembly of a paper collection device for a large rotary paper cutter.

[0023] Reference numerals: 10, frame; 20, conveying assembly; 30, paper cutting assembly; 40, paper scrap collection assembly; 21, first conveyor; 22, second conveyor; 23, paper cutting channel; 31, moving part; 32, paper cutting component; 41, collection conveyor; 42, collection component; 420, support plate; 421, collection funnel; 422, lower cutting channel; 423, discharge channel; 210, first conveyor support frame; 211, first conveyor belt; 212, first conveyor drive motor; 213, first baffle plate; 220, second conveyor support frame; 2 21. Second conveyor belt; 222. Second conveyor drive motor; 223. Second baffle plate; 33. Grinding blade assembly; 310. Fixed bearing; 311. Rotating outer tube; 312. Swing arm; 313. Swing motor; 320. Rotating inner tube; 321. First transmission gear; 322. Second transmission gear; 324. Paper cutter; 325. Paper cutting motor; 330. Grinding blade slide rail; 331. Grinding blade slider; 332. Grinding stone; 333. Grinding blade pusher; 323. Transmission bearing; 326. Third transmission gear; 327. Transmission belt. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Please see Figures 1 to 6 This invention discloses a paper scrap collection device for a large rotary paper cutter according to one embodiment of the present invention. The device includes a frame 10, a conveying assembly 20 mounted on the frame 10, a paper cutting assembly 30, and a paper scrap collection assembly 40. The conveying assembly 20 includes a first conveying member 21 mounted on the frame 10 and a second conveying member 22 mounted at one end of the first conveying member 21. A paper cutting channel 23 is provided between the first conveying member 21 and the second conveying member 22. The paper cutting assembly 30 includes a movable member 31 mounted on the frame 10 and a paper cutting member 32 mounted on the movable member 31. The paper scrap collection assembly 40 includes a collection conveyor 41 mounted on the frame 10 and a collection component 42 mounted on the collection conveyor 41; the paper cutter 32 is used to cut the paper on the paper cutting channel 23 into segments; the collection component 42 includes a support plate 420 mounted on both sides of the collection conveyor 41 and a collection funnel 421 mounted on the support plate 420; the upper end of the collection funnel 421 is arranged opposite to the collection conveyor 41 to collect paper scraps generated by the cutting of the paper, and the other end is arranged opposite to the paper cutting channel 23 to guide the paper scraps to the collection conveyor 41.

[0028] The working principle of the paper collection device for the large rotary paper cutter of this utility model is as follows: The conveying component 20 consists of a first conveying component 21 and a second conveying component 22, forming a paper cutting channel 23 required for paper cutting; the paper to be cut moves along the channel and is ready to be cut into segments; when the paper to be cut passes through the paper cutting channel 23, the paper cutting component 32 cuts the paper to be cut into segments according to a preset length or shape; the movable component 31 can adjust the position or angle of the paper cutting component 32 to adapt to the cutting requirements of paper towels of different thicknesses; the paper scraps generated after cutting are guided by the support plate 420 and the collection funnel 421 to the collection conveyor 41, and then the paper scraps are conveyed by the collection conveyor 41 to the further processing or recycling process.

[0029] Compared to existing technologies, the paper scrap collection device for the large rotary paper cutter of this invention features a collection funnel 421 that ensures the paper scraps generated after cutting are effectively guided to the collection conveyor 41, reducing paper scrap scattering and pollution. The collection conveyor 41 transports the paper scraps to further processing or recycling steps, improving the recycling rate of paper scraps and reducing waste. The paper cutting component 32 can precisely cut according to a preset length or shape, ensuring the accuracy and consistency of paper cutting. The movable component 31 can be adjusted in position or angle to adapt to paper of different thicknesses and shapes, improving the applicability and flexibility of the equipment. The conveyor component 20, the paper cutting component 30, and the paper scrap collection component 40 can be installed and maintained independently, facilitating equipment maintenance and upgrades. The design of the support plate 420 and the collection funnel 421 makes the paper scrap collection device compact in structure, occupying little space and suitable for various working environments. The coordinated work of the conveyor component 20 and the paper scrap collection component 40 ensures the continuous and efficient operation of the paper cutter, reducing downtime and maintenance costs.

[0030] Please refer to Figure 1 , Figure 3 and Figure 4The collecting component 42 also includes a cutting channel 422 and a discharge channel 423 disposed on the collecting funnel 421; the discharge channel 423 is disposed opposite to the cutting channel 422; the conveying direction of the collecting conveyor 41 is disposed towards the discharge channel 423. The design of the cutting channel 422 and the discharge channel 423 allows paper scraps to be directly guided from the cutting channel 23 to the collection funnel 421 during the cutting process, and then smoothly discharged through the discharge channel 423, reducing the scattering and accumulation of paper scraps. The conveying direction of the collection conveyor 41 is set towards the discharge channel 423, ensuring that the paper scraps can be smoothly conveyed to the further processing or recycling process, improving the efficiency of paper scrap transportation. The setting of the cutting channel 422 and the discharge channel 423 forms a relatively closed collection path, reducing the scattering of paper scraps during transportation and effectively preventing environmental pollution. Reducing the scattering of paper scraps not only improves the cleanliness of the working environment, but also reduces the frequency and cost of cleaning and maintenance. The design of the cutting channel 422 and the discharge channel 423 makes the entire collection component 42 structure more stable and compact, reducing failures caused by structural loosening or instability. The directional channel design reduces the risk of blockage of paper scraps during the collection process, ensuring continuous operation of the equipment.

[0031] The collecting conveyor 41 is a collecting conveyor belt installed on the frame 10; the support plate 420 is installed on both sides of the collecting conveyor belt; the transport direction of the collecting conveyor belt is horizontal to the downward cutting direction of the paper cutter 32. The transport direction of the collecting conveyor belt is horizontal to the downward cutting direction of the paper cutter 32, ensuring that paper scraps fall directly into the collecting conveyor belt after cutting, reducing the scattering and loss of paper scraps and improving the efficiency of paper scrap collection. The horizontal transport direction reduces the resistance of paper scraps during the transport process, allowing the paper scraps to be transported more smoothly to the discharge channel 423, further improving the transport efficiency. The support plates 420 are installed on both sides of the collecting conveyor belt, forming a relatively closed transport channel, reducing the scattering of paper scraps during the transport process and effectively preventing environmental pollution. Reducing the scattering of paper scraps not only improves the cleanliness of the working environment, but also reduces the frequency and cost of cleaning and maintenance. The installation of the support plates 420 not only enhances the structural stability of the entire collecting assembly, but also improves the load-bearing capacity of the collecting conveyor belt, reducing failures caused by structural loosening or instability. The directional transport path reduces the risk of blockage of paper scraps during collection and transport, ensuring the continuous operation of the equipment.

[0032] Example 2, please refer to Figure 2The collecting conveyor 41 is a collecting conveyor belt installed on the frame 10; the support plate 420 is installed on both sides of the collecting conveyor belt; the transport direction of the collecting conveyor belt is perpendicular to the downward cutting direction of the paper cutter 32. The transport direction of the collecting conveyor belt is perpendicular to the downward cutting direction of the paper cutter 32, allowing paper scraps to be quickly transferred from below the paper cutter 32 to the collecting conveyor belt after cutting. This reduces the dwell time of paper scraps in the cutting area and improves the efficiency of paper scrap collection. The perpendicular transport direction ensures that paper scraps are quickly transported away in a short time, reducing accumulation in the cutting area and avoiding blockages and equipment failures caused by paper scrap accumulation. The support plates 420 are installed on both sides of the collecting conveyor belt, forming a relatively closed transport channel, reducing the scattering of paper scraps during transport and effectively preventing environmental pollution. Reducing paper scrap scattering not only improves the cleanliness of the working environment but also reduces the frequency and cost of cleaning and maintenance. The installation of the support plates 420 not only enhances the structural stability of the entire collecting assembly but also improves the load-bearing capacity of the collecting conveyor belt, reducing failures caused by structural loosening or instability. The perpendicular transport direction ensures that paper scraps are evenly distributed on the collecting conveyor belt, avoiding uneven transport caused by paper scrap accumulation and ensuring stable operation of the equipment.

[0033] Please refer to Figure 3 and Figure 5 The first conveying component 21 includes a first conveying support frame 210 mounted on the frame 10, a first conveyor belt 211 mounted on the first conveying support frame 210, a first conveying drive motor 212 for driving the first conveyor belt 211 to move, and a first baffle plate 213 mounted on the first conveying support frame 210; there are two first baffle plates 213, and the two first baffle plates 213 are respectively mounted on both sides of the first conveyor belt 211. Two first baffles 213 are respectively installed on both sides of the first conveyor belt 211, which can effectively prevent the paper from shifting or slipping during transmission, ensuring stable paper transmission. The baffles help maintain the uniform distribution of the paper on the conveyor belt, avoiding wrinkles or deformation of the paper due to uneven force during transmission. The baffles reduce the possibility of the paper colliding with other parts of the equipment due to shifting during transmission, avoiding paper damage. The baffles help keep the paper flat, reducing wrinkles or deformation caused by unstable transmission, thus improving paper quality. Stable paper transmission reduces downtime and adjustment time caused by transmission problems, improving equipment production efficiency. Reduced paper damage and wrinkles lower the scrap rate, improving production efficiency and product quality.

[0034] The second conveying component 22 includes a second conveying support frame 220 mounted on the frame 10, a second conveyor belt 221 mounted on the second conveying support frame 220, a second conveying drive motor 222 for driving the movement of the second conveyor belt 221, and a second baffle plate 223 mounted on the second conveying support frame 220; there are two second baffle plates 223, which are respectively mounted on both sides of the second conveyor belt 221. Two second baffles 223 are respectively installed on both sides of the second conveyor belt 221, which can effectively prevent the paper from shifting or slipping during transmission, ensuring stable paper transmission. The baffles help maintain the uniform distribution of paper on the conveyor belt, avoiding wrinkles or deformation of paper due to uneven force during transmission. The baffles reduce the possibility of paper colliding with other parts of the equipment due to shift during transmission, avoiding paper damage. The baffles help keep the paper flat, reducing wrinkles or deformation caused by unstable transmission, thus improving paper quality. Stable paper transmission reduces downtime and adjustment time caused by transmission problems, improving equipment production efficiency. Reduced paper damage and wrinkles lower the scrap rate, improving production efficiency and product quality.

[0035] Please refer to Figure 3 and Figure 6 The paper cutting assembly 30 also includes a sharpening member 33 mounted on the movable member 31; the movable member 31 includes a fixed bearing 310 mounted on the frame 10, a rotating outer tube 311 mounted in the fixed bearing 310, a swing arm 312 mounted on the rotating outer tube 311, and a swing motor 313 mounted on the frame 10; the swing motor 313 is configured to be drivenly connected to the rotating outer tube 311. The swing motor 313 is connected to the rotating outer tube 311 for transmission, which can precisely control the movement of the swing arm 312 and realize the accurate swing of the paper cutting component 32, thereby improving the accuracy and consistency of paper cutting. The combined design of the fixed bearing 310 and the rotating outer tube 311 ensures the smooth movement of the swing arm 312 and reduces paper cutting errors caused by unstable swing. The sharpening component 33 is installed on the moving part 31 and can periodically sharpen the blades to maintain their sharpness and extend their service life. Through the control of the swing motor 313, the sharpening component 33 can automatically perform the sharpening operation, reducing manual intervention and improving the efficiency and safety of sharpening. The precise control of the swing motor 313 enables the paper cutting assembly 30 to perform continuous paper cutting operations, reducing downtime caused by adjusting and correcting the blade position and improving production efficiency. Precise paper cutting operation reduces paper damage and waste, and improves the product qualification rate.

[0036] The paper cutting component 32 includes a rotating inner tube 320 installed inside the rotating outer tube 311, a first transmission gear 321 installed at one end of the rotating inner tube 320, a second transmission gear 322 installed at the other end of the first transmission gear 321, a transmission part installed on the second transmission gear 322, a paper cutting blade 324 installed on the second transmission gear 322, and a paper cutting motor 325 installed on the frame 10; the paper cutting motor 325 is configured to be connected to the first transmission gear 321 in a transmission connection. Through the multi-stage transmission design of the first transmission gear 321 and the second transmission gear 322, the power transmission of the paper cutting motor 325 can be precisely achieved, ensuring that the movement of the paper cutter 324 is more stable and accurate. The multi-stage transmission design reduces errors in the transmission process, improving the cutting accuracy and consistency of the paper cutting component 32. The multi-stage transmission design makes the force on the paper cutter 324 more even during movement, reducing blade wear and extending blade life. The combined design of the rotating inner tube 320 and the rotating outer tube 311 ensures the stable movement of the paper cutter 324, reducing blade wear caused by vibration or impact. The paper cutting motor 325 is directly connected to the first transmission gear 321, which can quickly respond to control signals, realizing the rapid start and stop of the paper cutter 324, improving paper cutting efficiency. The multi-stage transmission design allows the paper cutter 324 to perform continuous paper cutting operations, reducing downtime caused by adjusting and correcting the blade position, and improving production efficiency.

[0037] The sharpening assembly 33 includes a sharpening slide rail 330 mounted on a swing arm 312, a sharpening slider 331 mounted on the sharpening slide rail 330, a sharpening stone 332 mounted on the sharpening slider 331, and a sharpening pusher 333 mounted on the swing arm 312; specifically, the sharpening pusher 333 is a sharpening pusher cylinder. The combined design of the sharpening slide rail 330 and the sharpening slider 331 ensures stable movement of the sharpening stone 332 during the sharpening process, reducing sharpening errors caused by unstable movement and improving sharpening accuracy. The sharpening pusher cylinder can precisely control the movement of the sharpening stone 332, making the sharpening process more uniform and avoiding excessive wear or unsharpened areas of the tool due to uneven grinding. The design of the sharpening slide rail 330 and the sharpening slider 331 makes the grinding force of the sharpening stone 332 more uniform on the tool during movement, reducing excessive wear in certain areas of the tool. This extends the service life of the cutting tools; the sharpening cylinder can automatically perform the sharpening operation, reducing errors and fatigue from manual sharpening, ensuring the consistency and effectiveness of each sharpening operation, and further extending the service life of the cutting tools; the sharpening cylinder can quickly respond to control signals, enabling the sharpening stone 332 to start and stop quickly, reducing waiting time during the sharpening process and improving sharpening efficiency; the automatic control of the sharpening cylinder allows the sharpening piece 33 to perform sharpening operations continuously, reducing downtime caused by manual intervention and improving production efficiency.

[0038] The transmission unit includes a transmission bearing 323 mounted on the swing arm 312, a third transmission gear 326 mounted on the transmission bearing 323, and a transmission belt 327 that is connected to the second transmission gear 322 and the third transmission gear 326; the paper cutter 324 is mounted on one end of the third transmission gear 326. The third transmission gear 326 is connected to the second transmission gear 322 via a transmission belt 327, ensuring precise power transmission from the paper-cutting motor 325 to the paper-cutting blade 324, improving cutting accuracy and consistency. The combined design of the transmission belt 327 and the transmission gear reduces errors in the transmission process, ensuring that the paper-cutting blade 324 maintains a consistent movement trajectory and cutting force each time it cuts paper. The use of the transmission belt 327 reduces direct contact between gears, reducing gear wear and extending the service life of the transmission system. The combined design of the transmission belt 327 and the transmission gear makes power transmission smoother, reducing wear and malfunctions caused by unstable transmission. The combined design of the transmission belt 327 and the transmission gear allows the paper-cutting blade 324 to quickly respond to the drive of the paper-cutting motor 325, achieving rapid start and stop, and improving cutting efficiency. Continuous power transmission ensures that the paper-cutting blade 324 can continuously perform paper-cutting operations, reducing downtime caused by transmission problems and improving production efficiency.

[0039] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A paper leakage collection device for a large rotary paper cutter, characterized in that, The device includes a frame, a conveying assembly mounted on the frame, a paper cutting assembly, and a paper scrap collection assembly. The conveying assembly includes a first conveyor mounted on the frame and a second conveyor mounted at one end of the first conveyor. A paper cutting channel is provided between the first and second conveyors. The paper cutting assembly includes a movable part mounted on the frame and a paper cutting component mounted on the movable part. The paper scrap collection assembly includes a collecting conveyor mounted on the frame and a collecting component mounted on the collecting conveyor. The paper cutting component is used to cut paper pieces on the paper cutting channel. The collecting component includes support plates mounted on both sides of the collecting conveyor and a collecting funnel mounted on the support plates. The upper end of the collecting funnel is positioned opposite to the collecting conveyor to collect paper scraps generated when the paper pieces are cut, and the other end is positioned opposite to the paper cutting channel to guide the paper scraps to the collecting conveyor.

2. The paper leakage collection device for a large rotary paper cutter according to claim 1, characterized in that, The collecting component further includes a cutting channel and a discharge channel disposed on the collecting funnel; the discharge channel is disposed opposite to the cutting channel; the conveying direction of the collecting conveyor is disposed towards the discharge channel.

3. The paper leakage collection device for a large rotary paper cutter according to claim 2, characterized in that, The collecting conveyor is a collecting conveyor belt installed on the frame; the support plate is installed on both sides of the collecting conveyor belt; the transport direction of the collecting conveyor belt is horizontal to the downward cutting direction of the paper cutter.

4. The paper leakage collection device for a large rotary paper cutter according to claim 2, characterized in that, The collecting conveyor is a collecting conveyor belt installed on the frame; the support plate is installed on both sides of the collecting conveyor belt; the transport direction of the collecting conveyor belt is perpendicular to the downward cutting direction of the paper cutter.

5. The paper leakage collection device for a large rotary paper cutter according to claim 1, characterized in that, The first conveying component includes a first conveying support frame mounted on the frame, a first conveyor belt mounted on the first conveying support frame, a first conveying drive motor for driving the first conveyor belt to move, and a first baffle plate mounted on the first conveying support frame; there are two first baffle plates, and the two first baffle plates are respectively mounted on both sides of the first conveyor belt.

6. The paper leakage collection device for a large rotary paper cutter according to claim 1, characterized in that, The second conveying component includes a second conveying support frame mounted on the frame, a second conveyor belt mounted on the second conveying support frame, a second conveying drive motor for driving the movement of the second conveyor belt, and a second baffle plate mounted on the second conveying support frame; there are two second baffle plates, which are respectively mounted on both sides of the second conveyor belt.

7. The paper collection device for a large rotary paper cutter according to claim 1, characterized in that, The paper cutting assembly also includes a grinding blade mounted on the movable component; the movable component includes a fixed bearing mounted on the frame, a rotating outer tube mounted in the fixed bearing, a swing arm mounted on the rotating outer tube, and a swing motor mounted on the frame; the swing motor is configured to be drivenly connected to the rotating outer tube.

8. The paper leakage collection device for a large rotary paper cutter according to claim 7, characterized in that, The paper cutting component includes a rotating inner tube installed inside the rotating outer tube, a first transmission gear installed at one end of the rotating inner tube, a second transmission gear installed at the other end of the first transmission gear, a transmission part installed on the second transmission gear, a paper cutting blade installed on the second transmission gear, and a paper cutting motor installed on the frame; the paper cutting motor is configured to be connected to the first transmission gear in a transmission connection.

9. The paper leakage collection device for a large rotary paper cutter according to claim 7, characterized in that, The sharpening component includes a sharpening slide rail mounted on the swing arm, a sharpening slider mounted on the sharpening slide rail, a sharpening stone mounted on the sharpening slider, and a sharpening pusher mounted on the swing arm.

10. The paper leakage collection device for a large rotary paper cutter according to claim 8, characterized in that, The transmission unit includes a transmission bearing mounted on the swing arm, a third transmission gear mounted on the transmission bearing, and a transmission belt connecting the second transmission gear and the third transmission gear; the paper cutter is mounted on one end of the third transmission gear.