Salary calculation device, system and method based on paper file processing

By designing a payroll calculation device with page-turning, wrinkle-removing, and marking mechanisms, the problems of low scanning efficiency and insufficient image clarity of paper documents in existing technologies are solved, realizing automated and efficient paper contract processing and marking, which is suitable for payroll calculation scenarios.

CN121728199APending Publication Date: 2026-03-24鲸美质新智能科技(苏州)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing paper document scanning devices are cumbersome and inefficient when processing bound contracts, making it difficult to meet batch processing needs. They also struggle to effectively flatten the paper, affecting the clarity of the scanned images, and lack a quick way to mark non-standard contracts.

Method used

Design a payroll calculation device that includes a page-turning mechanism, a wrinkle-removing mechanism, and a marking mechanism. The page-turning mechanism enables automatic page turning and scanning, the wrinkle-removing mechanism removes wrinkles, the marking mechanism marks abnormal contracts, and the device is combined with an image acquisition device and an image recognition system for automated processing.

Benefits of technology

It enables automated and efficient processing of bound paper contracts, simplifies the operation process, improves the efficiency of scanning and processing batch contracts, enhances image clarity and the accuracy of marking abnormal contracts, and reduces the intensity of manual operation.

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Abstract

The invention relates to the field of file processing, and provides a salary calculation device, system and method based on paper file processing, and the device comprises a rack, the rack is fixedly connected with a paper supporting plate, and the rack is connected with an image acquisition device, a page turning mechanism, a wrinkle removing mechanism and a marking mechanism. By highly integrating page turning, wrinkle removing, scanning and abnormal marking functions, automatic, high-efficiency and high-reliability processing of binding paper contracts is achieved, the working efficiency in the salary calculation and contract management process can be effectively improved, a binding structure of the contracts does not need to be disassembled, manual page-by-page turning is not needed, and the labor intensity of workers is reduced. The method effectively simplifies the operation process, remarkably improves the batch contract scanning and processing efficiency, and is suitable for the rapid processing of a large number of paper contracts in a salary accounting scene.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of file processing, in particular to a salary calculation device, system and method based on paper file processing. BACKGROUND

[0002] In the process of salary calculation and accounting management, it is usually necessary to audit and retain the contract files submitted by business personnel. Such contracts are generally composed of multiple paper files. In order to facilitate carrying, storage or classified management, a paperclip or stapler is often used to staple a corner of the contract.

[0003] The existing paper file scanning device still has certain deficiencies when scanning the above-mentioned stapled contract.

[0004] Firstly, for the multi-page contract that has been stapled, when scanning and saving or data accounting are needed, the stapling structure usually needs to be removed first, and then the staff manually scans page by page. Not only is the operation process cumbersome, but also the scanning efficiency is low, which is difficult to meet the needs of batch contract processing.

[0005] Secondly, during the transmission, storage and use of the contract, different degrees of wrinkles may be caused due to folding, extrusion and other reasons. The existing scanning device is difficult to effectively flatten the paper, thereby affecting the clarity and recognition quality of the scanned image. In addition, during the contract auditing process, some contracts may have problems such as non-standard content filling and information missing. The existing technology lacks a means for quickly and intuitively marking the contracts with problems, increasing the workload of subsequent manual review and classified management. SUMMARY

[0006] In view of the above technical problems, the present application aims to provide a salary calculation device, system and method based on paper file processing. To solve the above technical problems, the present application adopts the following technical solutions: A salary calculation device based on paper file processing, comprising a rack, a paper supporting plate fixedly connected to the rack, an image acquisition device, a page turning mechanism, a wrinkle removing mechanism and a marking mechanism connected to the rack.

[0007] Optionally, the page turning mechanism comprises a guide plate, a first air cylinder and a sliding plate. The guide plate and the first air cylinder are fixedly connected to the rack, and the sliding plate is slidingly connected to the rack. A second air cylinder is slidingly connected to the sliding plate. A paper suction device is fixedly connected to the piston rod of the second air cylinder. A pressure sensor is embedded in the bottom wall of the paper suction device. A guide channel is formed in the guide plate. A guide strip is rotatably connected to the second air cylinder and slidingly connected to the inner wall of the guide channel.

[0008] Optionally, the image acquisition device is connected to the bottom wall of the guide plate.

[0009] Optionally, the wrinkle removing mechanism comprises a movable frame, a roller frame and a heating roller, the movable frame is slidingly connected to the frame, two inclined baffles are slidingly connected to the movable frame, the inclined baffles are connected to the movable frame through springs, the roller frame is slidingly connected to the movable frame, a sliding block is slidingly connected to the roller frame, the sliding block is slidingly connected to the piston rod of the second cylinder, the heating roller is rotatably connected to the roller frame, and the paper suction device is fixedly connected with an L-shaped ejector rod.

[0010] Optionally, the marking mechanism comprises a marking box, a permanent magnet is embedded in the paper suction device, the marking box is connected to the frame, a transmission cavity and a clip storage cavity are formed in the marking box and are in communication with each other, the transmission cavity is in communication with the outer wall of the marking box, the clip storage cavity is in communication with the outer wall of the marking box through a clip outlet, an L-shaped pushing piece and a permanent magnet piece are slidingly connected to the inner wall of the transmission cavity, the L-shaped pushing piece and the permanent magnet piece are fixedly connected, the permanent magnet piece is connected to the inner wall of the transmission cavity through springs, and two or more elastic clips are stacked on the inner wall of the clip storage cavity, and the elastic clips are provided with inclined surfaces.

[0011] Optionally, the paper supporting plate is connected with a clamping mechanism.

[0012] Optionally, the frame is connected with a damping slide rail, and the movable frame is slidingly connected to the damping slide rail.

[0013] Optionally, the paper supporting plate is located between the two inclined baffles, and the frame has a shape of a Chinese character.

[0014] A salary calculation system based on paper file processing comprises a data storage system, a picture recognition system and a salary calculation device based on paper file processing connected in sequence.

[0015] A salary calculation method based on paper file processing, wherein a contract is scanned by using the salary calculation device based on paper file processing, and salary calculation is performed according to the scanned contract picture.

[0016] The present application has the following advantages: The present application highly integrates the functions of page turning, wrinkle removing, scanning and abnormal marking, realizes automatic, high-efficiency and high-reliability processing of the bound paper contract, effectively improves the work efficiency in the process of salary calculation and contract management, does not need to disassemble the binding structure of the contract, and does not need manual page turning, effectively simplifies the operation process, significantly improves the efficiency of batch contract scanning and processing, and is suitable for the demand of rapid processing of a large number of paper contracts in the salary accounting scene. BRIEF DESCRIPTION OF DRAWINGS

[0017] The application is further described with the help of the drawings, but the embodiments in the drawings do not constitute any limitation to the application, and other embodiments can be obtained by those skilled in the art without creative labor on the basis of the following drawings.

[0018] Figure 1 Fig. 1 is a structural schematic diagram of a salary calculation device based on paper file processing according to the present application; Figure 2 Fig. 2 is an internal structural diagram of the salary calculation device based on paper file processing according to the present application; Figure 3 Fig. 3 is an internal structural diagram of the salary calculation device based on paper file processing according to the present application from one angle; Figure 4 Fig. 4 is an internal structural diagram of the salary calculation device based on paper file processing according to the present application from one angle; Figure 5 Fig. 5 is a structural schematic diagram of a marking box according to the present application; Figure 6 Fig. 6 is an internal structural schematic diagram of the marking box according to the present application; Figure 7 Fig. 7 is a structural schematic diagram of an inclined baffle and a spring one according to the present application; Figure 8 Fig. 8 is a structural schematic diagram of a paper supporting plate, a clamping mechanism and a contract according to one embodiment of the present application; Figure 9 Fig. 9 is a structural schematic diagram of a salary calculation system based on paper file processing according to the present application.

[0019] Fig. 1 is a structural schematic diagram of a salary calculation device based on paper file processing according to the present application; Fig. 2 is an internal structural diagram of the salary calculation device based on paper file processing according to the present application; Fig. 3 is an internal structural diagram of the salary calculation device based on paper file processing according to the present application from one angle; Fig. 4 is an internal structural diagram of the salary calculation device based on paper file processing according to the present application from one angle; Fig. 5 is a structural schematic diagram of a marking box according to the present application; Fig. 6 is an internal structural schematic diagram of the marking box according to the present application; Fig. 7 is a structural schematic diagram of an inclined baffle and a spring one according to the present application; Fig. 8 is a structural schematic diagram of a paper supporting plate, a clamping mechanism and a contract according to one embodiment of the present application; Fig. 9 is a structural schematic diagram of a salary calculation system based on paper file processing according to the present application. Marked in the drawing: 1, frame; 2, guide plate; 3, paper supporting plate; 4, cylinder one; 5, sliding plate; 6, cylinder two; 7, paper suction device; 8, permanent magnet; 9, guide strip; 10, image acquisition device; 11, guide channel; 12, movable frame; 13, spring one; 14, inclined baffle; 15, roller frame; 16, heating roller; 17, L-shaped ejector rod; 18, marking box; 19, transmission cavity; 20, L-shaped pushing piece; 21, permanent magnet piece; 22, spring two; 23, clamping cavity; 24, elastic clamp; 25, clamping outlet; 26, sliding block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described with the help of the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0022] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0023] In the description of this invention, 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 invention according to the specific circumstances.

[0024] like Figures 1-7 As shown, a payroll calculation device based on paper document processing includes a frame 1, a paper tray 3 fixedly connected to the frame 1, and an image acquisition device 10, a page turning mechanism, a wrinkle removal mechanism and a marking mechanism connected to the frame 1.

[0025] Regarding the page-turning mechanism, preferably, the page-turning mechanism includes a guide plate 2, a first cylinder 4, and a slide plate 5. The guide plate 2 and the first cylinder 4 are both fixedly connected to the frame 1. The slide plate 5 is slidably connected to the frame 1. A second cylinder 6 is slidably connected to the slide plate 5. A paper suction device 7 is fixedly connected to the piston rod of the second cylinder 6. A pressure sensor is embedded in the bottom wall of the paper suction device 7. A guide channel 11 is opened on the guide plate 2. A guide strip 9 is rotatably connected to the second cylinder 6. The guide strip 9 is slidably connected to the inner wall of the guide channel 11.

[0026] The slide plate 5 can only move horizontally on the frame 1, and the cylinder 6 can only move horizontally on the slide plate 5.

[0027] A wireless network module, such as a Wi-Fi module, a ZigBee module, or a Z-Wave module, can be installed in rack 1 to enable wireless data transmission.

[0028] It is worth noting that the image acquisition device 10 is connected to the bottom wall of the guide plate 2.

[0029] Based on the above solution, in order to achieve an effective wrinkle removal effect of the wrinkle removal mechanism, in one implementation, the wrinkle removal mechanism includes a movable frame 12, a roller frame 15 and a heating roller 16. The movable frame 12 is slidably connected to the frame 1. Two inclined baffle plates 14 are slidably connected to the movable frame 12. The inclined baffle plates 14 are connected to the movable frame 12 through a first spring 13. The roller frame 15 is slidably connected to the movable frame 12. A slider 26 is slidably connected to the roller frame 15. The slider 26 is slidably connected to the piston rod of the second cylinder 6. The heating roller 16 is rotatably connected to the roller frame 15. An L-shaped ejector rod 17 is fixedly connected to the paper suction device 7.

[0030] The inclined baffle plate 14 can only move up and down on the movable frame 12. The slider 26 can only move horizontally on the roller frame 15. The slider 26 can only move up and down on the piston rod of the second cylinder 6. A heating component, such as a heating wire, is provided inside the heating roller 16. The surface of the heating roller 16 is made of a heat-conducting material. Preferably, a groove is provided on the movable frame 12, and the inclined baffle plate 14 is slidably connected to the inner wall of the groove.

[0031] As Figure 6 shown, for contracts with abnormalities, a marking mechanism needs to be used for marking. The marking mechanism is further arranged as follows. The marking mechanism includes a marking box 18. A permanent magnet 8 is embedded in the paper suction device 7. The marking box 18 is connected to the frame 1. A transmission cavity 19 and a storage and clamping cavity 23 that communicate with each other are provided on the marking box 18. The transmission cavity 19 communicates with the outer wall of the marking box 18. The storage and clamping cavity 23 communicates with the outer wall of the marking box 18 through an outlet clip 25. An L-shaped pushing piece 20 and a permanent magnet piece 21 are slidably connected to the inner wall of the transmission cavity 19. The L-shaped pushing piece 20 and the permanent magnet piece 21 are fixedly connected. The permanent magnet piece 21 is connected to the inner wall of the transmission cavity 19 through a second spring 22. More than two elastic clips 24 are stacked on the inner wall of the storage and clamping cavity 23. The elastic clips 24 have inclined surfaces.

[0032] As Figure 8 shown, in order to reduce the offset of the contract, optionally, a clamping mechanism is connected to the paper supporting plate 3. The clamping mechanism is used to clamp the upper left corner of the contract.

[0033] To prevent the movable frame 12 from sliding down automatically, a damping sliding rail is connected to the frame 1. The movable frame 12 is slidably connected to the damping sliding rail, so that the movable frame 12 maintains its current height when not pushed by the L-shaped ejector rod 17.

[0034] A preferred setting is that the paper supporting plate 3 is located between the two inclined baffle plates 14.

[0035] Optionally, the frame 1 is in a U-shaped configuration.

[0036] As Figure 9As shown, a payroll calculation system based on paper document processing includes a data storage system, an image recognition system, and a payroll calculation device based on paper document processing, which are electrically connected in sequence.

[0037] The image recognition system includes a denoising module, an enhancement module, and a content recognition module. The denoising module performs noise suppression processing on the contract image acquired by the image acquisition device 10 to reduce noise interference caused by factors such as uneven lighting, paper texture, or equipment vibration during scanning. The enhancement module enhances the clarity, contrast, or brightness of the denoised contract image to improve the recognizability of contract text and image information. The other modules are used to further analyze and recognize the processed contract image to extract contract information related to salary calculation. The content recognition module identifies text or symbol information in the contract image to obtain relevant content information in the contract, so as to determine whether the contract content is abnormal.

[0038] The image recognition system can also be equipped with an artificial intelligence module that has deep learning capabilities and interpretability. The artificial intelligence module can work in conjunction with the denoising module, enhancement module, and content recognition module to adaptively adjust the denoising and enhancement processing parameters according to the quality characteristics of the contract image, thereby improving the readability of the contract image and the accuracy of subsequent content recognition.

[0039] A payroll calculation method based on paper document processing is disclosed. This method utilizes a paper document processing-based payroll calculation device to scan contracts and calculate payroll based on the scanned contract images. Specifically, the contract image data is transmitted to an image recognition system, which analyzes and recognizes the text and data content in the contract image to obtain contract information relevant to payroll calculation. Finally, the payroll calculation is completed based on the recognized contract information, and the contract image, recognition results, and payroll calculation data are stored in a data storage system for subsequent querying, verification, and management. This method automates the scanning and information processing of paper contracts, making the payroll calculation process more efficient and standardized, and reducing the intensity of manual operations.

[0040] Working principle: Multiple contracts are bound together into one contract near the upper left corner using paper clips or a stapler. The bound contracts are then stacked between two inclined baffles 14 on the tray 3. A clamping mechanism is used to hold the upper left corner of the contract, and the two inclined baffles 14 limit the position of the contract and prevent subsequent deviation.

[0041] Counting from top to bottom, they are the first contract, the second contract, ... the Nth contract.

[0042] The image acquisition device 10 scans the first contract. After scanning one contract, the contract needs to be turned over.

[0043] When cylinders 4 and 6 are activated, the piston rod on cylinder 4 extends, causing the slide plate 5 and cylinder 6 to move towards the paperboard 3. The guide bar 9 on cylinder 6 slides along the length of the guide channel 11, causing cylinder 6 to slide horizontally on the slide plate 5. The extension of the piston rod on cylinder 6 causes the paper suction device 7 to move downward. The height of slider 26 remains unchanged. Slider 26 slides on the piston rod of cylinder 6 and slides horizontally on the roller frame 15. At the same time, slider 26 drives the roller frame 15 and the heating roller 16 to move horizontally towards the paperboard 3.

[0044] The heating roller 16 pushes the inclined surface of one of the inclined baffles 14, causing the inclined baffle 14 to move downward against the elastic force of spring 13, allowing the heating roller 16 to smoothly pass over the inclined baffle 14. After the heating roller 16 disengages from the inclined baffle 14, the inclined baffle 14 returns to its original position under the elastic force of spring 13. Then, the heating roller 16 pushes the other inclined baffle 14 downward, disengaging the heating roller 16 from between the two inclined baffles 14. Then, the bottom wall of the paper suction device 7 abuts against the lower right side of the top wall of the first contract, and the L-shaped push rod 17 abuts against the top wall of the movable frame 12. The L-shaped push rod 17 pushes the movable frame 12 slightly downward. When the pressure sensor detects that the pressure value reaches the preset value, the paper suction device 7 generates negative pressure to suck up the lower right side of the top wall of the first contract. The piston rods of control cylinder 4 and cylinder 6 are both shortened. The paper suction device 7 moves horizontally and upward under the drive of the piston rod of cylinder 6, causing the lower right corner of the contract to flip to the upper left corner. During this process, the heating roller 16 generates heat. After the heating roller 16 pushes down one of the inclined baffles 14, it enters the space between the two inclined baffles 14. Since the heating roller 16 has been pushed down by the L-shaped top rod 17, the heating roller 16 abuts against the top wall of the second contract. The heating roller 16 removes wrinkles from the second contract. The presence of the inclined baffles 14 can prevent the contract from shifting excessively under the friction of the heating roller 16. Then, the heating roller 16 pushes down the other inclined baffle 14 and disengages from the space between the two inclined baffles 14.

[0045] Once the contract has been turned to a certain extent (the lower right corner of the contract has passed the upper left corner), the paper suction device 7 stops generating negative pressure, and the contract falls down and detaches from the paper suction device 7 under the action of gravity, completing the page turning action, so that the image acquisition device 10 can clearly scan the second contract.

[0046] The same principle applies to the subsequent third, fourth, ... Nth contracts, which are then flipped and scanned.

[0047] As the thickness of the contract on the tray 3 decreases, the height of the L-shaped top rod 17 when it abuts against the movable frame 12 will be lower each time. Thus, the L-shaped top rod 17 will push the movable frame 12 and the heating roller 16 down a small distance each time, so that the heating roller 16 can enter the two inclined baffles 14 and remain against the top wall of the contract to remove wrinkles.

[0048] The image recognition system can analyze and identify scanned contract images, such as analyzing whether there are any missing entries. If an anomaly is found in the contract image, the system pauses its movement when the paper suction device 7 picks up the lower right corner of the contract page and moves it a short distance upwards (at this time, the lower right corner edge of the suctioned contract is aligned with the exit clip 25). The permanent magnet 8 is then energized to generate magnetic force, which attracts the permanent magnet plate 21. The permanent magnet plate 21 and the L-shaped pusher plate 20 move against the elastic force of the spring 22. The L-shaped pusher plate 20 enters the storage cavity 23 and pushes the bottom elastic clip 24 out of the storage cavity 23 from the exit clip 25. The L-shaped pusher plate 20 extends from the exit clip 25 to the outside of the marking box 18. The inclined surface of the elastic clip 24 allows it to be smoothly inserted into the contract, thus marking the contract and enabling users to quickly find and verify contracts with anomalies. Then, the permanent magnet 8 loses its magnetic attraction when the power is cut off. Under the action of the spring 22, the permanent magnet plate 21 and the L-shaped pusher plate 20 move back to their original positions. The L-shaped pusher plate 20 disengages from the storage cavity 23 and returns to the transmission cavity 19. The elastic clamp 24 in the storage cavity 23 drops down by the height of the elastic clamp 24, so that it can be pushed by the L-shaped pusher plate 20 to perform clamping and marking. Then, the L-shaped push rod 17 continues to move according to the above principle to perform subsequent operations.

[0049] The beneficial effects of this invention are as follows: First, by coordinating the page-turning mechanism and the image acquisition device 10, it is possible to automatically turn and scan multi-page contracts that have been bound with paper clips or staplers. There is no need to disassemble the binding structure of the contract or manually turn each page, which effectively simplifies the operation process and significantly improves the efficiency of batch contract scanning and processing. It is suitable for the rapid processing needs of a large number of paper contracts in the payroll calculation scenario. Secondly, by setting up a wrinkle removal mechanism consisting of a movable frame 12, an inclined baffle 14, a roller frame 15, and a heating roller 16, the contract surface is simultaneously rolled and heated during the contract flipping process. This effectively removes wrinkles caused by folding and squeezing, improves the flatness of the contract paper, and thus enhances the clarity of the images acquired by the image acquisition device 10 and the accuracy of subsequent image recognition. Through the cooperation of the inclined baffle 14 and the spring 13, the heating roller 16 can smoothly enter the top of the contract and abut against the contract surface without damaging the contract limiting structure. At the same time, it plays a lateral limiting role in the rolling process, preventing the contract from excessively shifting under the friction of the heating roller 16, and further ensuring the stability of the scanning position. Through the linkage adjustment structure of the L-shaped top rod 17 and the movable frame 12, the heating roller 16 can adaptively adjust its height according to the change of the overall thickness of the contract on the tray 3, so that the heating roller 16 always maintains effective contact with the top wall of the contract under different page numbers and thicknesses, ensuring the wrinkle removal effect. Furthermore, by combining the image recognition system with the marking mechanism, when a contract image is found to have missing information or abnormal content, the system can automatically clamp the elastic clip 24 onto the corresponding abnormal contract using the magnetic linkage of the permanent magnet 8, the permanent magnet sheet 21, and the L-shaped pusher sheet 20 without affecting the page turning process. This achieves automatic and real-time marking of abnormal contracts, reducing the workload of manual screening and classification. In summary, by highly integrating page turning, wrinkle removal, scanning, and anomaly marking functions, this invention achieves automated, efficient, and reliable processing of bound paper contracts, effectively improving work efficiency in payroll calculation and contract management.

[0050] The components, modules, mechanisms, and devices in this invention that are not described in detail are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A payroll calculation device based on paper document processing, characterized in that, It includes a frame (1), on which a paper supporting board (3) is fixedly connected. An image acquisition device (10), a page-turning mechanism, a wrinkle-removing mechanism and a marking mechanism are connected to the frame (1).

2. The payroll calculation device based on paper document processing according to claim 1, characterized in that, The page-turning mechanism includes a guiding plate (2), a first cylinder (4) and a sliding plate (5). The guiding plate (2) and the first cylinder (4) are both fixedly connected to the frame (1). The sliding plate (5) is slidably connected to the frame (1). A second cylinder (6) is slidably connected to the sliding plate (5). A paper suction device (7) is fixedly connected to the piston rod of the second cylinder (6). A pressure sensor is embedded in the bottom wall of the paper suction device (7). A guiding channel (11) is formed on the guiding plate (2). A guiding strip (9) is rotatably connected to the second cylinder (6), and the guiding strip (9) is slidably connected to the inner wall of the guiding channel (11).

3. The payroll calculation device based on paper document processing according to claim 2, characterized in that, The image acquisition device (10) is connected to the bottom wall of the guiding plate (2).

4. The payroll calculation device based on paper document processing according to claim 3, characterized in that, The wrinkle-removing mechanism includes a movable frame (12), a roller frame (15) and a heating roller (16). The movable frame (12) is slidably connected to the frame (1). Two inclined baffle plates (14) are slidably connected to the movable frame (12). The inclined baffle plates (14) are connected to the movable frame (12) through a first spring (13). The roller frame (15) is slidably connected to the movable frame (12). A slider (26) is slidably connected to the roller frame (15), and the slider (26) is slidably connected to the piston rod of the second cylinder (6). The heating roller (16) is rotatably connected to the roller frame (15). An L-shaped ejector rod (17) is fixedly connected to the paper suction device (7).

5. A payroll calculation device based on paper document processing according to claim 4, characterized in that, The marking mechanism includes a marking box (18). A permanent magnet (8) is embedded in the paper suction device (7). The marking box (F18) is connected to the frame (1). A transmission cavity (19) and a storage and clamping cavity (23) which are communicated with each other are formed on the marking box (18). The transmission cavity (F19) is communicated with the outer wall of the marking box (18). The storage and clamping cavity (23) is communicated with the outer wall of the marking box (18) through a clamping outlet (25). An L-shaped pushing piece (20) and a permanent magnetic piece (21) are slidably connected to the inner wall of the transmission cavity (19). The L-shaped pushing piece (20) and the permanent magnetic piece (21) are fixedly connected, and the permanent magnetic piece (21) is connected to the inner wall of the transmission cavity (19) through a second spring (22). Two or more elastic clips (24) are stacked on the inner wall of the storage and clamping cavity (23), and the elastic clips (24) are provided with inclined surfaces.

6. A payroll calculation device based on paper document processing according to claim 5, characterized in that, A clamping mechanism is connected to the paper supporting board (3).

7. A payroll calculation device based on paper document processing according to claim 6, characterized in that, A damping slide rail is connected to the frame (1), and the movable frame (12) is slidably connected to the damping slide rail.

8. A payroll calculation device based on paper document processing according to claim 7, characterized in that, The paper supporting board (3) is located between the two inclined baffle plates (14), and the frame (1) is in a U shape.

9. A payroll calculation system based on paper document processing, characterized in that, It includes a data storage system, a picture recognition system and a salary calculation device for paper document processing according to any one of claims 1-8, which are electrically connected in sequence.

10. A salary calculation method based on paper document processing, characterized in that, Use a salary calculation device for paper document processing according to any one of claims 1-8 to scan a contract, and calculate the salary according to the scanned contract picture.