Cutting equipment and cutting method for thin paper

Abstract

The invention relates to thin paper cutting equipment and method, and the thin paper cutting equipment comprises a plurality of guide roller mechanisms which are used for sequentially outputting a plurality of paper segments; the first adsorption mechanism is arranged on the paper output sides of the multiple guide roller mechanisms and used for adsorbing the paper segments output from the multiple guide roller mechanisms; the second adsorption mechanism can circularly move on the paper adsorption side and the paper output side of the first adsorption mechanism, the second adsorption mechanism and the first adsorption mechanism are opposite when the second adsorption mechanism is located on the paper adsorption side of the first adsorption mechanism, and the second adsorption mechanism is used for adsorbing paper segments on the first adsorption mechanism and outputting the paper segments on the second adsorption mechanism when the second adsorption mechanism is located on the paper output side of the first adsorption mechanism. The two are staggered; the motion platform is used for driving the second adsorption mechanism to circularly move to the paper adsorption side and the paper output side of the first adsorption mechanism; and the cutting mechanism is arranged on the paper output side of the first adsorption mechanism and used for cutting off the thin paper. According to the thin paper cutting device, it is guaranteed that thin paper does not wrinkle during cutting, and the cutting precision of the thin paper is improved.

Description

Technical Field

[0001] The invention relates to the field of cutting technology, in particular to a thin paper cutting device and a cutting method. Background Art

[0002] When paper is produced, it is usually in the form of paper rolls, which is convenient for transportation and storage on the one hand, and for subsequent processing on the other hand. Before using or binding, paper is usually cut into sheets. In order to improve the efficiency of paper cutting, paper cutting equipment is usually used in the prior art to cut paper. Conventional paper cutting equipment is usually suitable for cutting paper with a certain thickness. When cutting thin paper, thin paper is thin and it is easy to wrinkle, resulting in inaccurate cutting size. How to provide a thin paper cutting equipment with improved cutting accuracy is a technical problem that needs to be solved in this field. Summary of the invention

[0003] To this end, the present invention provides a thin paper cutting device with improved cutting accuracy.

[0004] In order to solve the technical problem, the present invention provides a cutting device for thin paper, wherein the thin paper comprises a plurality of paper segments connected in sequence along the length direction thereof, and the cutting device comprises: A plurality of guide roller mechanisms, used for driving and guiding the thin paper to move along a preset path and outputting a plurality of paper segments of the thin paper in sequence; A first adsorption mechanism is provided on the paper output side of the plurality of guide roller mechanisms, and the first adsorption mechanism is used to adsorb the paper segments output from the plurality of guide roller mechanisms; The second adsorption mechanism can be cyclically moved to a first position and a second position. When the second adsorption mechanism is located at the first position, the second adsorption mechanism is located at the paper adsorption side of the first adsorption mechanism, and the second adsorption mechanism can adsorb the paper segment on the first adsorption mechanism. When the second adsorption mechanism is located at the second position, the second adsorption mechanism and the adsorbed paper segment are located at the paper output side of the first adsorption mechanism, and the paper segment adjacent to the paper segment on the second adsorption mechanism moves to the first adsorption mechanism; A motion platform, used for driving the second adsorption mechanism to cyclically move to the first position and the second position; The cutting mechanism is arranged at the paper output side of the first adsorption mechanism, and is used for cutting the paper segment located on the first adsorption mechanism and the paper segment located on the second adsorption mechanism at the second position.

[0005] Furthermore, each of the guide roller mechanisms comprises a guide roller, and the guide roller is used to tension the thin paper. At least one of the guide roller mechanisms further comprises a first driving device, and the first driving device is used to drive at least one of the guide rollers to rotate so as to drive the thin paper to move.

[0006] Further, the roller mechanism closest to the first adsorption mechanism includes the first driving device.

[0007] Further, at least one of the roller mechanisms further includes a position detection element and a second driving device, the position detection element is used to detect the position of the side edge of the thin paper, and the second driving device is used to drive at least one of the rollers to move axially to correct the deviation of the thin paper.

[0008] Further, the two roller mechanisms include the second driving device.

[0009] Further, at least one of the roller mechanisms further includes a tension detection element and a third driving device, the tension detection element is used to detect the tension of the thin paper, and the third driving device is used to drive at least one of the rollers to move radially to adjust the tension of the thin paper.

[0010] Further, the two roller mechanisms include the third driving device.

[0011] Further, the cutting device includes a plurality of the second adsorption mechanisms, the moving platform is a turntable, and the plurality of the second adsorption mechanisms are evenly distributed on the turntable along the circumferential direction of the turntable. The turntable drives the second adsorption mechanisms to move circumferentially, and the first adsorption mechanism is arranged outside the turntable in the radial direction.

[0012] Further, the cutting mechanism includes a cutting knife and a fourth driving device, the cutting knife is used to cut the thin paper, and the fourth driving device is used to drive the cutting knife to approach and move away from the thin paper.

[0013] The present invention also provides a method for cutting thin paper, including the following steps: S1. Provide the cutting device as described above, and enter step S2; S2. Make the outermost paper section of the thin paper located at a position where it can be adsorbed by the first adsorption mechanism, and enter step S3; S3. The first adsorption mechanism turns on the adsorption function and adsorbs the outermost paper section, and enter step S4; S4. Make the second adsorption mechanism located at the first position, and enter step S5; S5. The first adsorption mechanism turns off the adsorption function, and at the same time the second adsorption mechanism turns on the adsorption function and adsorbs the outermost paper section, and enter step S6; S6. The roller mechanism drives the thin paper to move, so that the second outermost paper section moves to a position where it can be adsorbed by the first adsorption mechanism, and at the same time the moving platform drives the second adsorption mechanism to move to the second position, and enter step S7; S7. The first adsorption mechanism turns on the adsorption function, and enter step S8; S8. The cutting mechanism cuts the sub-terminal paper segment on the first adsorption mechanism and the terminal paper segment on the second adsorption mechanism at the second position. The sub-terminal paper segment becomes the new terminal paper segment and enters step S9; S9. Determine whether the thin paper cutting is completed. If so, the cutting ends. If not, the moving platform drives the second adsorption mechanism after the paper segment is transferred away or another empty second adsorption mechanism to move to the first position, and returns to step S5.

[0014] The above technical solution of the present invention has the following advantages compared with the prior art: When cutting the thin paper according to the cutting device and method of the thin paper of the present invention, the two paper segments on both sides of the cutting position are respectively adsorbed on the first adsorption mechanism and the second adsorption mechanism, which can ensure that the thin paper is flat on the first adsorption mechanism and the second adsorption mechanism, and ensure that the thin paper will not wrinkle during cutting, thereby improving the cutting accuracy of the thin paper. Description of the Drawings

[0015] In order to make the content of the present invention easier to be clearly understood, the present invention will be further described in detail below according to the specific embodiments of the present invention in conjunction with the drawings.

[0016] Figure 1 It is a partial schematic view of the thin paper disclosed by the present invention; Figure 2 It is a top view of the cutting device disclosed by the present invention; Figure 3 It is a perspective view of the cutting device disclosed by the present invention at one angle; Figure 4 It is a perspective view of the cutting device disclosed by the present invention at another angle.

[0017] Explanation of the reference numerals in the drawings: 1. Thin paper; 11. Paper segment; 2. Guide roller mechanism; 21. Guide roller; 22. First driving device; 23. Position detection element; 24. Second driving device; 25. Third driving device; 3. First adsorption mechanism; 4. Second adsorption mechanism; 5. Moving platform; 51. Guide rail; 6. Cutting mechanism; 61. Cutting knife; 62. Fourth driving device. Detailed Embodiments

[0018] The present invention will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the embodiments cited do not limit the present invention.

[0019] See Figures 1 to 4 As shown, an embodiment of the cutting device for thin paper provided by the present invention.

[0020] The thin paper 1 includes a plurality of paper segments 11 connected in sequence along its length direction.

[0021] The cutting device includes: A plurality of guide roller mechanisms 2 for driving and guiding the thin paper to move along a preset path and sequentially outputting a plurality of paper segments 11 of the thin paper 1; A first adsorption mechanism 3 provided on the paper output side of the plurality of guide roller mechanisms 2, and the first adsorption mechanism 3 is used for adsorbing the paper segments 11 output from the plurality of guide roller mechanisms 2; A second adsorption mechanism 4 that can cyclically move to a first position and a second position. When the second adsorption mechanism 4 is in the first position, the second adsorption mechanism 4 is located on the paper adsorption side of the first adsorption mechanism 3, and the second adsorption mechanism 4 can adsorb the paper segments 11 on the first adsorption mechanism 3. When the second adsorption mechanism 4 is in the second position, the second adsorption mechanism 4 and the paper segments adsorbed thereon are located on the paper output side of the first adsorption mechanism 3, and the paper segments adjacent to the paper segments on the second adsorption mechanism 4 move onto the first adsorption mechanism 3; A moving platform 5 for driving the second adsorption mechanism 4 to cyclically move to the first position and the second position; A cutting mechanism 6 provided on the paper output side of the first adsorption mechanism 3, and the cutting mechanism 6 is used for cutting the paper segments on the first adsorption mechanism 3 and the paper segments on the second adsorption mechanism 4 located in the second position.

[0022] In the above text, the guide roller mechanism 2 is used to guide or support the thin paper 1 to move on a specific path. The guide roller mechanism 2 mainly works based on the principle of rolling friction. When the thin paper 1 contacts and moves with the guide roller mechanism 2, the guide roller mechanism 2 rotates freely. The first adsorption mechanism 3 and the second adsorption mechanism 4 are used for adsorbing and conveying the thin paper 1. When the first adsorption mechanism 3 adsorbs the thin paper 1, the thin paper 1 is relatively fixed with the first adsorption mechanism 3. When the second adsorption mechanism adsorbs the thin paper 1, the thin paper 1 is relatively fixed with the second adsorption mechanism 4. The paper adsorption side of the first adsorption mechanism 3 refers to the side of the first adsorption mechanism 3 that directly contacts the thin paper 1 and realizes the adsorption function. The paper output side of the first adsorption mechanism 3 refers to the side where the thin paper moves out of the first adsorption mechanism 3. The moving platform 5 is used to realize the movement of the second adsorption mechanism 4, and the moving platform 5 in this embodiment will be specifically introduced later. The cutting mechanism 6 is used to cut the thin paper 1. When the cutting mechanism 6 performs cutting, it cuts the adjacent paper segments 11 along the dividing line between the adjacent paper segments 11.

[0023] Specifically in this embodiment, the axis of the guide roller mechanism 2 extends in the vertical direction, the plurality of guide roller mechanisms 2 drive the thin paper 1 to move in the horizontal plane, the adsorption surfaces of the first adsorption mechanism 3 and the second adsorption mechanism 4 are both vertical planes, and the moving platform 5 drives the second adsorption mechanism 4 to move in the horizontal plane.

[0024] The following introduces the cutting method of the thin paper in this embodiment, including the following steps: Cutting method for thin paper, comprising the following steps: S1. Provide the above-mentioned cutting device, and proceed to step S2; S2. Position the outermost paper section 11 of the thin paper 1 at the position where the first adsorption mechanism 3 is located, and proceed to step S3; S3. The first adsorption mechanism 3 activates its adsorption function to adsorb the outermost paper section 11, and proceed to step S4; S4. Position the second adsorption mechanism 4 at the first position, and proceed to step S5; S5. The first adsorption mechanism 3 turns off its adsorption function, while the second adsorption mechanism 4 activates its adsorption function to adsorb the outermost paper section 11, and proceed to step S6; S6. The roller mechanism 2 drives the thin paper to move, causing the second outermost paper section to move to a position where it can be adsorbed by the above-mentioned first adsorption mechanism 3. At the same time, the moving platform 5 drives the second adsorption mechanism 4 to move to the second position, and proceed to step S7; S7. The first adsorption mechanism 3 activates its adsorption function, and proceed to step S8; S8. The cutting mechanism 6 cuts the second outermost paper section on the first adsorption mechanism 3 and the outermost paper section on the second adsorption mechanism 4 at the second position, and proceed to step S9; S9. Determine whether the cutting of the thin paper is completed. If so, the cutting ends. If not, the moving platform 5 drives the second adsorption mechanism 4 after the paper section has been transferred away or another empty second adsorption mechanism 4 to move to the first position, and return to step S5.

[0025] In the above text, in step S4, the outermost paper section 11 of the thin paper 1 is positioned at the position where the first adsorption mechanism 3 is located by manual traction. In step S9, after the paper section on the second adsorption mechanism 4 has been transferred away, it returns to the first position, or another second adsorption mechanism 4 moves to the first position. The paper section closest to the outer end of the thin paper roll is the outermost paper section of the thin paper, and the second closest paper section to the outer end of the thin paper roll is the second outermost paper section. As the thin paper is cut, the outermost paper section and the second outermost paper section of the thin paper are constantly changing.

[0026] Through the above technical solution, when cutting the thin paper, the two paper sections on both sides of the cutting position are respectively adsorbed on the first adsorption mechanism 3 and the second adsorption mechanism 4, which can ensure that the thin paper 1 is flat on the first adsorption mechanism 3 and the second adsorption mechanism 4, and ensure that the thin paper 1 will not wrinkle during cutting, improving the cutting accuracy of the thin paper.

[0027] In this embodiment, each of the above-mentioned roller mechanisms 2 includes a roller 21, and the above-mentioned roller 21 is used to tension the thin paper. At least one of the above-mentioned roller mechanisms 2 further includes a first driving device 22, and the above-mentioned first driving device 22 is used to drive at least one of the above-mentioned rollers 21 to rotate to drive the thin paper to move.

[0028] The guide roller 21 tensions the thin paper, and friction drive is used between the guide roller 21 and the thin paper. The first driving device 22 drives the guide roller 21 to rotate, and then friction drives the thin paper to move forward. Some of the guide rollers 21 rotate passively, rotating under the friction drive of the thin paper, and are used to tension and guide the movement of the thin paper. The first driving device 22 in this embodiment adopts a servo motor, and the servo motor has the advantages of high control accuracy, fast response speed, high reliability, flexible control mode, high efficiency and low noise.

[0029] In this embodiment, the guide roller mechanism 2 closest to the first adsorption mechanism 3 includes the first driving device 22.

[0030] Since the thin paper 1 is flexible, it is necessary to adopt a way of pulling the thin paper 1 to move to convey the thin paper. The guide roller 21 closest to the first adsorption mechanism 3 is closer to the free end of the thin paper 1, which is more conducive to pulling the thin paper 1 to move forward.

[0031] In this embodiment, at least one of the guide roller mechanisms 2 further includes a position detection element 23 and a second driving device 24. The position detection element 23 is used to detect the position of the side edge of the thin paper 1, and the second driving device 24 is used to drive at least one of the guide rollers 21 to move axially to correct the deviation of the thin paper 1.

[0032] During the conveying process of the thin paper 1, the detection and control of the side position of the thin paper 1 are very important links. It is necessary to ensure that the thin paper 1 maintains the correct position and direction during the conveying process, prevent the thin paper 1 from running off or skewing, and avoid deviations or waste products in subsequent processing. The position detection element 23 in this embodiment adopts an optical sensor. The position detection element 23 detects the side position of the thin paper 1. When the side position of the thin paper 1 deviates, the second driving device 24 drives the guide roller 21 to move axially, thereby adjusting the side position of the thin paper 1. The second driving device 24 in this embodiment adopts an electric cylinder. The electric cylinder is a modular product that integrates a servo motor and a lead screw. The electric cylinder mainly consists of components such as a motor, a lead screw, a nut, a slider, and a guide rail. The motor is connected to the lead screw through a coupling. When the motor is powered on and rotates, it drives the lead screw to rotate. The nut cooperating with the lead screw moves linearly along the axial direction of the lead screw under the drive of the lead screw. The nut then drives the slider to make a linear reciprocating motion on the guide rail through the connecting component, thereby realizing the linear motion of the load. Therefore, using an electric cylinder also has the advantages of a servo motor.

[0033] In this embodiment, two of the guide roller mechanisms 2 include the second driving device 24.

[0034] When correcting the deviation, the second driving device 24 drives the guide roller 21 to move axially. There is friction between the guide roller 21 and the thin paper, so the thin paper is driven to move axially along the guide roller 21. In some cases, the guide roller 21 and the thin paper may slip, resulting in a correction failure. Therefore, when correcting the deviation, the two guide rollers 21 move axially at the same time, which can drive a section of thin paper to correct the deviation together, prevent the correction failure, and improve the correction success rate.

[0035] In this embodiment, at least one of the guide roller mechanisms 2 further includes a tension detection element (not shown in the figure) and a third driving device 25, wherein the tension detection element is used to detect the tension of the thin paper 1, and the third driving device 25 is used to drive at least one of the guide rollers 21 to move radially to adjust the tension of the thin paper 1.

[0036] When the tension on the thin paper 1 is too large, the thin paper 1 is easy to break. When the tension on the thin paper 1 is too small, the thin paper 1 and the guide roller 21 will slip. Therefore, it is necessary to control the tension on the thin paper 1 within an appropriate range. The tension detection element is a tension sensor, which is installed on the guide roller 21. The tension of the thin paper 1 is obtained by sensing the pressure on the thin paper 1. For example, the strain gauge tension sensor senses the force deformation of the sensor body caused by the measured object through the strain gauge, converts the change in force into an electrical signal, and outputs an electrical signal proportional to the tension after amplification and processing by the transmission circuit. The third drive device 25 in this embodiment adopts, for example, an electric cylinder, and the structure of the electric cylinder has been described above and will not be repeated here.

[0037] In this embodiment, the two guide roller mechanisms 2 include the third driving device 25 .

[0038] When adjusting the tension of the thin paper 1, the third driving device 25 drives the guide roller 21 to move radially. At this time, the tension of the position where the thin paper 1 contacts the guide roller 21 moving radially suddenly increases, which may cause the thin paper 1 to break. Therefore, two guide rollers 21 are set to move radially at the same time, so that the radial movement amplitude of the guide rollers 21 can be smaller and the force on the thin paper 1 is more uniform, so that the thin paper 1 is not easy to break.

[0039] In this embodiment, the cutting equipment includes a plurality of the second adsorption mechanisms 4, the moving platform 5 is a turntable, and the plurality of the second adsorption mechanisms 4 are evenly distributed on the turntable along the circumference of the turntable. The turntable drives the second adsorption mechanisms 4 to move circumferentially, and the first adsorption mechanism 3 is arranged on the radially outer side of the turntable.

[0040] Since the second adsorption mechanism 4 has to cycle through the paper adsorption side and the paper output side of the first adsorption mechanism 3, the turntable drives the second adsorption mechanism 4 to move, and the second adsorption mechanism 4 moves along an annular track, so it can cycle through the paper adsorption side and the paper output side of the first adsorption mechanism 3. The turntable usually has a relatively compact structure and can realize the rotation and operation of an object within a limited space. Specifically, the turntable drives the second adsorption mechanism 4 to rotate around the vertical axis and sequentially passes through the paper adsorption side and the paper output side of the first adsorption mechanism 3.

[0041] When the previous second adsorption mechanism 4 reaches the paper output side of the first adsorption mechanism 3 for cutting thin paper, the next second adsorption mechanism 4 reaches the paper adsorption side of the first adsorption mechanism 3 for adsorbing thin paper. By arranging multiple second adsorption mechanisms 4, the thin paper cutting efficiency can be greatly improved.

[0042] Guide rails 51 are provided around the turntable. The guide rails 51 extend along the axial direction of the turntable. The second adsorption mechanism 4 is connected to the guide rails 51. After the turntable drives the second adsorption mechanism 4 to pass through the paper adsorption side and the paper output side of the first adsorption mechanism 3, the second adsorption mechanism 4 will also reach other workstations. At this time, the second adsorption mechanism 4 moves along the guide rails 51 under the drive of the driving device, so as to transfer the thin paper away.

[0043] In this embodiment, the above-mentioned cutting mechanism 6 includes a cutting knife 61 and a fourth driving device 62. The above-mentioned cutting knife 61 is used to cut the thin paper 1, and the above-mentioned fourth driving device 62 is used to drive the above-mentioned cutting knife 61 to approach and move away from the thin paper 1.

[0044] The cutting knife 61 has a blade edge, and the blade edge contacts the thin paper 1 to cut the thin paper 1. The fourth driving device 62 in this embodiment is, for example, an electric cylinder, and the structure of the electric cylinder has been described above and will not be elaborated here. The fourth driving device 62 in this embodiment drives the above-mentioned cutting knife 61 to move along the width direction of the thin paper 1. Before cutting the thin paper 1, the cutting knife 61 is located above the thin paper 1. When cutting the thin paper 1, the cutting knife 61 moves downward to cut the thin paper 1.

[0045] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A cutting device for thin paper, the thin paper comprising a plurality of paper segments sequentially connected along its length direction, characterized in that, The cutting device includes: A plurality of guide roller mechanisms for driving and guiding the thin paper to move along a preset path and sequentially outputting a plurality of paper segments of the thin paper; A first adsorption mechanism provided on the paper output side of the plurality of guide roller mechanisms, and the first adsorption mechanism is used for adsorbing the paper segments output from the plurality of guide roller mechanisms; A second adsorption mechanism that can cyclically move to a first position and a second position. When the second adsorption mechanism is in the first position, the second adsorption mechanism is located on the paper adsorption side of the first adsorption mechanism, and the second adsorption mechanism can adsorb the paper segments on the first adsorption mechanism. When the second adsorption mechanism is in the second position, the second adsorption mechanism and the paper segments adsorbed thereon are located on the paper output side of the first adsorption mechanism, and the paper segments adjacent to the paper segments on the second adsorption mechanism move to the first adsorption mechanism; A moving platform for driving the second adsorption mechanism to cyclically move to the first position and the second position; A cutting mechanism provided on the paper output side of the first adsorption mechanism, and the cutting mechanism is used for cutting the paper segments on the first adsorption mechanism and the paper segments on the second adsorption mechanism located in the second position.

2. The cutting device according to claim 1, characterized in that, Each of the guide roller mechanisms includes a guide roller for tensioning the thin paper, and at least one of the guide roller mechanisms further includes a first driving device for driving at least one of the guide rollers to rotate to drive the thin paper to move.

3. The cutting device according to claim 2, wherein, The guide roller mechanism closest to the first adsorption mechanism includes the first driving device.

4. The cutting device according to claim 2, characterized in that, At least one of the guide roller mechanisms further includes a position detection element and a second driving device. The position detection element is used for detecting the position of the side edge of the thin paper, and the second driving device is used for driving at least one of the guide rollers to move axially to correct the deviation of the thin paper.

5. The cutting device according to claim 4, characterized in that, Two of the guide roller mechanisms include the second driving device.

6. The cutting device according to claim 1, wherein At least one of the guide roller mechanisms further includes a tension detection element and a third driving device. The tension detection element is used for detecting the tension of the thin paper, and the third driving device is used for driving at least one of the guide rollers to move radially to adjust the tension of the thin paper.

7. The cutting device according to claim 6, characterized in that, Two of the guide roller mechanisms include the third driving device.

8. The cutting device according to claim 1, characterized in that The cutting device includes a plurality of the second adsorption mechanisms, the moving platform is a turntable, and the plurality of second adsorption mechanisms are circumferentially and evenly distributed on the turntable. The turntable drives the second adsorption mechanisms to move circumferentially, and the first adsorption mechanism is provided on the radial outside of the turntable.

9. The cutting device according to claim 1, wherein The cutting mechanism includes a cutting knife and a fourth driving device. The cutting knife is used for cutting the thin paper, and the fourth driving device is used for driving the cutting knife to approach and move away from the thin paper.

10. A method for cutting thin paper, characterized in that, It includes the following steps: S1. Provide the cutting device according to any one of claims 1 to 9, and enter step S2; S2. Make the last paper segment of the thin paper be in a position where it can be adsorbed by the first adsorption mechanism, and enter step S3; S3. The first adsorption mechanism turns on the adsorption function and adsorbs the last paper segment, and enter step S4; S4. Make the second adsorption mechanism be in the first position, and enter step S5; S5. The first adsorption mechanism turns off the adsorption function, and at the same time the second adsorption mechanism turns on the adsorption function and adsorbs the last paper segment, and enter step S6; S6. The guide roller mechanism drives the thin paper to move, so that the sub-terminal paper section moves to a position where it can be adsorbed by the first adsorption mechanism. At the same time, the moving platform drives the second adsorption mechanism to move to the second position, and then enter step S7; S7. The first adsorption mechanism turns on the adsorption function, and then enter step S8; S8. The cutting mechanism cuts the sub-terminal paper section on the first adsorption mechanism and the terminal paper section on the second adsorption mechanism at the second position. The sub-terminal paper section becomes the new terminal paper section, and then enter step S9; S9. Judge whether the cutting of the thin paper is completed. If so, the cutting ends. If not, the moving platform drives the second adsorption mechanism after the paper section is transferred away or another empty second adsorption mechanism to move to the first position, and then return to step S5.

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