Automatic paper file sorting and conveying device and conveying method
By designing an automatic sorting and conveying device for paper documents and using scanning and control mechanisms to achieve automatic sorting of paper documents, the problems of high cost and low efficiency of manual sorting are solved, and sorting accuracy and efficiency are improved.
Patent Information
- Application Number
- CN202510711690.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2025-09-05
AI Technical Summary
In the existing technology, paper document sorting relies on manual work, which is costly, inefficient and has poor accuracy.
An automatic sorting and conveying device for paper documents is designed, which includes a main conveying mechanism, a secondary conveying mechanism, a sorting box, a toggle mechanism and a control mechanism. A scanned copy is generated by a scanning unit, and the control unit controls the actions of the conveying mechanism and the toggle mechanism based on preset sorting rules to realize automatic sorting of paper documents.
It realizes the automatic sorting and transmission of paper documents, reduces labor costs, and improves efficiency and accuracy.
Smart Images

Figure CN120589401A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of paper document sorting and arranging, and in particular to a paper document automatic sorting and conveying device and method. Background Art
[0002] Sorting and organizing paper documents, such as files, archives, and papers, is a common task across various industries. For example, in archiving, binding publications, compiling examination papers, and counting banknotes by serial number, large numbers of unorganized paper documents need to be sorted into ascending (smallest to largest), descending (largest to smallest), or other ordering requirements. Currently, these tasks are primarily performed manually, which is costly, inefficient, and inaccurate when dealing with large volumes of documents. Summary of the Invention
[0003] The present invention provides an automatic sorting and conveying device and method for paper documents, which are used to solve the defects of the prior art of relying on manual sorting of a large number of disordered paper documents, such as high cost, low efficiency and poor accuracy, and realize mechanized automatic sorting and conveying of paper documents.
[0004] The present invention provides an automatic sorting and conveying device for paper documents, comprising a main conveying mechanism, an auxiliary conveying mechanism, a plurality of sorting boxes, a toggle mechanism and a control mechanism, wherein the main conveying mechanism comprises a pair of conveying shafts and a main conveying belt wound around the pair of conveying shafts, and the main conveying belt is provided with a plurality of first mounting grooves spaced apart along the conveying direction; the auxiliary conveying mechanism is arranged parallel to the side of the main conveying mechanism, the auxiliary conveying mechanism comprises a pair of conveying shafts and an auxiliary conveying belt wound around the pair of conveying shafts, and the auxiliary conveying belt is provided with a plurality of second mounting grooves spaced apart along the conveying direction; the sorting box is movably arranged in the first mounting groove of the main conveying belt, and the upper end of the sorting box is opened for falling paper documents; the toggle mechanism The mechanism is arranged on the side of the main conveying mechanism or the auxiliary conveying mechanism, and the toggle mechanism is used to push the sorting box to change its position between the first installation slot and the second installation slot; the control mechanism includes an electrically connected scanning unit and a control unit, and the scanning unit is used to scan the paper documents falling into the sorting box and generate scanned copies. The control unit is also electrically connected to the main conveying mechanism, the auxiliary conveying mechanism and the toggle mechanism respectively. The control unit receives the scanned copies generated by the scanning unit and controls the actions of the main conveying mechanism, the auxiliary conveying mechanism and the toggle mechanism based on preset sorting rules to realize the position sequence transformation of multiple sorting boxes in the main conveying mechanism.
[0005] According to an automatic sorting and conveying device for paper documents provided by the present invention, the automatic sorting and conveying device for paper documents also includes a main body shell, the main body shell is provided with a paper feed and a paper outlet, the main conveying mechanism, the auxiliary conveying mechanism and the toggle mechanism are located inside the main body shell, one end of the main conveying mechanism is located directly below the paper feed, and the other end is arranged toward the paper outlet, and the scanning unit of the control mechanism is arranged at the paper feed.
[0006] According to an automatic sorting and conveying device for paper documents provided by the present invention, the auxiliary conveying mechanism includes a first auxiliary conveying mechanism and a second auxiliary conveying mechanism, the first auxiliary conveying mechanism and the second auxiliary conveying mechanism are respectively located on both sides of the main conveying mechanism, the first auxiliary conveying mechanism includes a first auxiliary conveyor belt, the second auxiliary conveying mechanism includes a second auxiliary conveyor belt, the first auxiliary conveyor belt has the same conveying direction as the main conveyor belt, and the second auxiliary conveyor belt has a conveying direction opposite to that of the main conveyor belt.
[0007] According to an automatic sorting and conveying device for paper documents provided by the present invention, the toggle mechanism includes a plurality of telescopic push rods, which are fixed to the inner wall of the main body shell, and the plurality of telescopic push rods are distributed in parallel on the side of the first secondary conveyor belt away from the main conveyor belt and the side of the second secondary conveyor belt away from the main conveyor belt, and the telescopic push rods are suitable for telescoping toward or away from the main conveyor belt to push the sorting box to switch between the first installation slot of the main conveyor belt, the second installation slot of the first secondary conveyor belt, and the second installation slot of the second secondary conveyor belt.
[0008] According to an automatic sorting and conveying device for paper documents provided by the present invention, the toggle mechanism includes two telescopic push rods, which are slidably arranged on the inner wall of the main body shell and are suitable for sliding along the conveying direction of the auxiliary conveying mechanism. One of the telescopic push rods is located on the side of the first auxiliary conveyor belt away from the main conveyor belt, and the other telescopic push rod is located on the side of the second auxiliary conveyor belt away from the main conveyor belt. The telescopic push rods are suitable for telescoping toward or away from the main conveyor belt to push the sorting box to switch between the first installation slot of the main conveyor belt, the second installation slot of the first auxiliary conveyor belt, and the second installation slot of the second auxiliary conveyor belt.
[0009] According to an automatic paper document sorting and conveying device provided by the present invention, a plurality of insulating positioning strips are arranged in parallel and at intervals along the conveying direction on both the main conveyor belt and the auxiliary conveyor belt, and an electromagnet is fixed between two adjacent insulating positioning strips.
[0010] A magnetic base is provided at the bottom of the sorting box, and the sorting box is adsorbed on the electromagnet through the magnetic base.
[0011] According to an automatic paper document sorting and conveying device provided by the present invention, a plurality of T-shaped positioning strips are arranged parallel and spaced along the conveying direction on both the main conveyor belt and the auxiliary conveyor belt, and a mortise and tenon groove is formed between two adjacent T-shaped positioning strips.
[0012] An inverted T-shaped base is provided at the bottom of the sorting box, and the sorting box is movably connected to the mortise and tenon groove through the inverted T-shaped base.
[0013] According to an automatic sorting and conveying device for paper documents provided by the present invention, a plurality of monitoring radars are installed on the inner wall of the main body shell, and the plurality of monitoring radars are respectively arranged in one-to-one correspondence with the main conveying mechanism and the auxiliary conveying mechanism. The monitoring radars are facing the conveyor belt surface of the main conveying mechanism or the auxiliary conveying mechanism to monitor the degree of deviation of the conveyor belt compared to the initial position.
[0014] According to an automatic sorting and conveying device for paper documents provided by the present invention, the scanning unit includes a shooting and imaging element, a storage module and a data transmission module electrically connected in sequence, the shooting and imaging element is used to generate scans of paper documents falling into the sorting box, the storage module is used to store the scans generated by the shooting and imaging element, and the data transmission module is used to transmit the scans generated by the shooting and imaging element to the control unit.
[0015] The control unit includes an identification and filtering module, an algorithm management module and an instruction control module. The identification and filtering module is electrically connected to the data transmission module to receive the scanned paper documents generated by the scanning unit and extract the information required for sorting on the scanned paper documents; the algorithm management module is electrically connected to the identification and filtering module, and the algorithm management module calculates and generates sorting control instructions based on preset sorting rules and the information required for sorting on the scanned paper documents extracted by the identification and filtering module; the instruction control module is electrically connected to the algorithm management module, and the instruction control module controls the actions of the main conveying mechanism, the auxiliary conveying mechanism and the toggle mechanism based on the sorting control instructions generated by the algorithm management module.
[0016] The present invention further provides a method for automatically sorting and transmitting paper documents, which is applicable to any of the above-mentioned automatic sorting and transmitting devices for paper documents, and the method for automatically sorting and transmitting paper documents comprises: The scanning unit of the control mechanism scans the paper document and generates a scanned copy. The control unit of the control mechanism receives the scanned copy of the paper document generated by the scanning unit to obtain sorting information of the scanned copy of the paper document, and generates a sorting control instruction based on a preset sorting rule.
[0017] The scanned paper documents fall into each sorting box page by page, and the main conveying mechanism drives each of the sorting boxes to convey them.
[0018] The control mechanism controls the operation of the toggle mechanism based on the sorting control instruction generated by the control unit, and pushes the sorting box to switch between the main conveying mechanism and the auxiliary conveying mechanism.
[0019] The main conveying mechanism and the auxiliary conveying mechanism adjust the position sequence of each sorting box on the main conveying mechanism through staggered cooperation with the toggle mechanism, thereby realizing automatic sorting and conveying of paper documents.
[0020] The present invention provides an automatic paper document sorting and conveying device and method, in which a control mechanism controls the main conveying mechanism, the auxiliary conveying mechanism, and the toggle mechanism respectively through linkage control. The paper documents to be sorted enter a plurality of sorting boxes page by page, and the scanning unit of the control mechanism scans the paper documents falling into the sorting boxes into scanned copies. The control unit of the control mechanism receives the scanned copies generated by the scanning unit and controls the main conveying mechanism, the auxiliary conveying mechanism, and the toggle mechanism based on preset sorting rules to achieve positional transformation of the plurality of sorting boxes on the main conveying mechanism, achieve sorting of the paper documents to be sorted on the main conveying mechanism, and output the sorted paper documents. The automatic paper document sorting and conveying device of this embodiment controls the main conveying mechanism, the auxiliary conveying mechanism, and the toggle mechanism through the control mechanism to achieve automatic sorting and conveying of paper documents, with low labor costs and high efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0022] Figure 1 It is a structural schematic diagram of the automatic paper document sorting and conveying device provided by the present invention.
[0023] Figure 2 It is a schematic diagram of the process of exchanging the positions of two sorting boxes of the automatic paper document sorting and conveying device provided by the present invention.
[0024] Figure 3 This is one of the schematic diagrams of the matching structure of the sorting box and the conveyor belt provided by the present invention.
[0025] Figure 4 This is the second schematic diagram of the matching structure of the sorting box and the conveyor belt provided by the present invention.
[0026] Figure 5 It is a schematic diagram of the operation simulation of the automatic paper document sorting and conveying device provided by the present invention executing the example algorithm 1.
[0027] Figure 6 It is a schematic diagram of the operation simulation of the automatic paper document sorting and conveying device provided by the present invention executing the example algorithm 2.
[0028] Figure 7 It is a schematic diagram of the operation simulation of the automatic paper document sorting and conveying device provided by the present invention executing instructions regardless of nodes.
[0029] Figure 8 The figure is a schematic structural diagram of an embodiment of the automatic paper document sorting and conveying device provided by the present invention.
[0030] Figure 9 yes Figure 8 Schematic diagram of the paper discharge process of the automatic sorting and conveying device for paper documents.
[0031] Figure numerals: 1. Main conveying mechanism; 101. Main conveyor belt; 102. First mounting slot; 2. Auxiliary conveyor mechanism; 201. Auxiliary conveyor belt; 211. First auxiliary conveyor belt; 221. Second auxiliary conveyor belt; 202. Second mounting slot; 3. Sorting box; 301. Magnetic base; 302. Inverted T-shaped base; 4. Main body shell; 401. Paper feed port; 402. Paper outlet; 5. Telescopic push rod; 6. Insulating positioning strip; 7. Electromagnet; 8. T-shaped positioning strip; 9. Mortise and tenon groove; 10. Monitoring radar; 11. Paper feed box; 12. Paper receiving box; 13. Telescopic receiving paper board. DETAILED DESCRIPTION
[0032] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0033] The following combination Figures 1 to 9 The invention describes an automatic paper document sorting and conveying device and method.
[0034] The present invention provides a paper document automatic sorting and conveying device, see Figure 1As shown, the automatic sorting and conveying device for paper documents includes a main conveying mechanism 1, an auxiliary conveying mechanism 2, a plurality of sorting boxes 3, a toggle mechanism and a control mechanism. The main conveying mechanism 1 includes a pair of conveying shafts and a main conveying belt 101 wound around the pair of conveying shafts, and the main conveying belt 101 is provided with a plurality of first mounting grooves 102 spaced apart along the conveying direction; the auxiliary conveying mechanism 2 is arranged parallel to the side of the main conveying mechanism 1, the auxiliary conveying mechanism 2 includes a pair of conveying shafts and an auxiliary conveying belt 201 wound around the pair of conveying shafts, and the auxiliary conveying belt 201 is provided with a plurality of second mounting grooves 202 spaced apart along the conveying direction; the sorting box 3 is movably arranged in the first mounting groove 102 of the main conveying belt 101, and the upper end of the sorting box 3 is opened for falling into the paper documents (for the convenience of analyzing the principle of the device, Figure 1 The proportion and spacing of the sorting boxes 3 are enlarged, and the number is reduced. In actual application, the sorting boxes 3 are produced according to the thickness that can accommodate one page of paper. The overall size of the hardware equipment is customized according to industry needs. Hundreds of pages of documents can be sorted under the same size as common commercial printers); the toggle mechanism is arranged on the side of the main conveying mechanism 1 or the auxiliary conveying mechanism 2, and the toggle mechanism is used to push the sorting box 3 to switch positions between the first installation slot 102 and the second installation slot 202; the control mechanism includes an electrically connected scanning unit and a control unit, the scanning unit is used to scan the paper documents falling into the sorting box 3 and generate scanned copies, and the control unit is also electrically connected to the main conveying mechanism 1, the auxiliary conveying mechanism 2 and the toggle mechanism respectively. The control unit receives the scanned copies generated by the scanning unit, and controls the main conveying mechanism 1, the auxiliary conveying mechanism 2 and the toggle mechanism based on preset sorting rules to realize the position change of multiple sorting boxes 3 in the main conveying mechanism 1.
[0035] The automatic paper document sorting and conveying device of this embodiment uses a control mechanism to control the main conveying mechanism 1, the auxiliary conveying mechanism 2, and the toggle mechanism in a linked manner. The paper documents to be sorted enter the multiple sorting boxes 3 page by page. The scanning unit of the control mechanism scans the paper documents that fall into the sorting boxes 3 into scanned copies. The control unit of the control mechanism receives the scanned copies generated by the scanning unit and controls the main conveying mechanism 1, the auxiliary conveying mechanism 2, and the toggle mechanism based on preset sorting rules to achieve positional transformation of the multiple sorting boxes 3 on the main conveying mechanism 1, achieve sorting of the paper documents to be sorted on the main conveying mechanism 1, and output the sorted paper documents. The automatic paper document sorting and conveying device of this embodiment uses a control mechanism to control the main conveying mechanism 1, the auxiliary conveying mechanism 2, and the toggle mechanism to achieve automated sorting and conveying of paper documents, with low labor costs and high efficiency and accuracy.
[0036] In some embodiments of the paper document automatic sorting and conveying device of the present invention, see Figure 1As shown, the automatic sorting and conveying device for paper documents also includes a main housing 4, which is provided with a paper feed port 401 and a paper outlet 402. The main conveying mechanism 1, the auxiliary conveying mechanism 2 and the toggle mechanism are located inside the main housing 4. One end of the main conveying mechanism 1 is located directly below the paper feed port 401, and the other end is arranged toward the paper outlet 402. The scanning unit of the control mechanism is arranged at the paper feed port 401.
[0037] It can be understood that in this embodiment, the paper documents to be sorted enter the main housing 4 page by page from the paper inlet 401 on the main housing 4. As the main conveying mechanism 1 drives multiple sorting boxes 3 to convey, the paper documents entering the main housing 4 enter each sorting box 3 page by page, and then the toggle mechanism pushes each sorting box 3 to perform position conversion between the main conveying mechanism 1 and the auxiliary conveying mechanism 2. Based on the sorting instructions of the control mechanism, the staggered transmission between the main conveying mechanism 1 and the auxiliary conveying mechanism 2 is utilized to finally realize the formation of a new position sequence of each sorting box 3 in the main conveying mechanism 1. After the sorting is completed, each sorting box 3 outputs the sorted paper documents page by page from the paper outlet 402 of the main housing 4, completing the automatic sorting and transmission of the paper documents.
[0038] In some embodiments of the automatic sorting and conveying device for paper documents of the present invention, the sub-conveyor mechanism 2 includes a first sub-conveyor mechanism and a second sub-conveyor mechanism, and the first sub-conveyor mechanism and the second sub-conveyor mechanism are respectively located on both sides of the main conveyor mechanism 1. The first sub-conveyor mechanism includes a first sub-conveyor belt 211, and the second sub-conveyor mechanism includes a second sub-conveyor belt 221. The first sub-conveyor belt 211 has the same conveying direction as the main conveyor belt 101, and the second sub-conveyor belt 221 has an opposite conveying direction to the main conveyor belt 101.
[0039] It will be appreciated that the automatic paper document sorting and conveying device in this embodiment includes three conveyor mechanisms, each of which includes two parallel conveyor shafts and a conveyor belt wound around the two conveyor shafts, forming a main conveyor belt 101, a first sub-conveyor belt 211, and a second sub-conveyor belt 221 arranged in parallel. The main conveyor belt 101 is centered, with the first and second sub-conveyor belts 211 and 221 positioned on either side of the main conveyor belt 101. The main conveyor belt 101 is driven from the paper inlet 401 to the paper outlet 402. The first sub-conveyor belt 211 and the main conveyor belt 101 have the same conveying direction, while the second sub-conveyor belt 221 has the opposite conveying direction. It should be appreciated that the main conveyor belt 101, the first sub-conveyor belt 211, and the second sub-conveyor belt 221 are independently controlled to be in motion or stationary. Through the coordinated operation and stationary nature of the three conveyor mechanisms, and based on the toggle mechanism's ability to push and switch the sorting boxes 3 on different conveyor mechanisms, the order of the sorting boxes 3 on the main conveyor belt 101 can be switched.
[0040] In some specific examples of the automatic sorting and conveying device for paper documents of the present invention, the toggle mechanism includes a plurality of telescopic push rods 5, which are fixed to the inner wall of the main body shell 4, and the plurality of telescopic push rods 5 are distributed in parallel on the side of the first sub-conveyor 211 away from the main conveyor 101 and on the side of the second sub-conveyor 221 away from the main conveyor 101, and the telescopic push rods 5 are suitable for telescoping toward or away from the main conveyor 101 to push the sorting box 3 to switch between the first mounting slot 102 of the main conveyor 101, the second mounting slot 202 of the first sub-conveyor 211 and the second mounting slot 202 of the second sub-conveyor 221.
[0041] It can be understood that multiple telescopic push rods 5 are deployed on the outside of the first sub-conveyor 211 and the second sub-conveyor 221, and the telescopic push rods 5 are perpendicular to the direction of movement of the conveyor belts. The number of telescopic push rods 5 is consistent with the number of sorting boxes 3 that can be accommodated above the conveyor belt and perpendicular to the ground. The telescopic push rods 5 can be controlled to retract by the control unit of the control mechanism, and are used to push the sorting boxes 3 to move laterally between different conveyor belts along the retraction direction of the telescopic push rods 5. Based on the preset sorting rules and the sorting instructions of the control unit, the telescopic push rods 5 first push the sorting boxes 3 from the main conveyor belt 101 into the first sub-conveyor belt 211 or the second sub-conveyor belt 221, and then wait until the main conveyor belt 101 and the first sub-conveyor belt 211 or the second sub-conveyor belt 221 are misaligned to the appropriate position, and then push the sorting boxes 3 from the first sub-conveyor belt 211 or the second sub-conveyor belt 221 into the main conveyor belt 101, so as to achieve correct sorting of the sorting boxes 3 on the main conveyor belt 101.
[0042] In this example, the process of sorting paper documents is to adjust the position of the sorting box 3 by coordinating the telescopic push rod 5 with the three conveyor belts. The telescopic push rod 5 pushes the sorting box 3 on the main conveyor belt 101 to a slot flush with it on the first auxiliary conveyor belt 211 or the second auxiliary conveyor belt 221. The first auxiliary conveyor belt 211 or the second auxiliary conveyor belt 221 is then moved to a new position. The telescopic push rod 5 is then used again to push the sorting box 3 on the first auxiliary conveyor belt 211 or the second auxiliary conveyor belt 221 back to the main conveyor belt 101. The specific sorting box 3 to be moved, in what direction, and how many steps are moved are determined by the control instructions generated by the control unit based on the scanned paper documents generated by the scanning unit to obtain the sorting information of the paper documents, and the control is automatically controlled after precise calculation based on preset sorting rules.
[0043] Taking the adjustment and exchange of the positions of the two sorting boxes 3 as an example, the coordination process of the telescopic push rod 5 and the three conveyor belts can be seen in Figure 2 As shown, Figure 2 The process of exchanging positions of two sorting boxes 3 on the main conveyor belt 101 is shown. Figure 2 The upper left corner of the figure shows the initial positions of the two sorting boxes 3 on the main conveyor belt 101. Figure 2The upper right corner of the diagram shows that two sorting boxes 3 are pushed into the first secondary conveyor belt 211 and the second secondary conveyor belt 221 respectively by two telescopic push rods 5. Figure 2 The lower left corner of the diagram shows that the first secondary conveyor belt 211 and the second secondary conveyor belt 221 convey the sorting box 3 in opposite directions. Figure 2 The lower right corner of the diagram shows that two sorting boxes 3 are pushed from the first secondary conveyor belt 211 and the second secondary conveyor belt 221 into the main conveyor belt 101 by two telescopic push rods 5. Figure 2 The upper left corner shows the initial position and Figure 2 As can be seen from the final position shown in the lower right corner of , the positions of the two sorting boxes 3 on the main conveyor belt 101 are interchanged, that is, the desired sorting result is achieved.
[0044] In other specific examples of the automatic sorting and conveying device for paper documents of the present invention, the toggle mechanism includes two telescopic push rods 5, which are slidably arranged on the inner wall of the main body shell 4 and are suitable for sliding along the conveying direction of the auxiliary conveying mechanism 2. One of the telescopic push rods 5 is located on the side of the first auxiliary conveyor belt 211 away from the main conveyor belt 101, and the other telescopic push rod 5 is located on the side of the second auxiliary conveyor belt 221 away from the main conveyor belt 101. The telescopic push rod 5 is suitable for telescoping toward or away from the main conveyor belt 101 to push the sorting box 3 to switch between the first installation slot 102 of the main conveyor belt 101, the second installation slot 202 of the first auxiliary conveyor belt 211 and the second installation slot 202 of the second auxiliary conveyor belt 221.
[0045] It is understood that the telescopic push rod 5 in this example is movably arranged, and a sliding groove along the conveying direction of the conveyor belt can be set on the inner wall of the main body housing 4. The telescopic push rod 5 moves in the sliding groove. When the sorting box 3 on one of the positions on the conveyor belt needs to be switched, the control unit of the control mechanism controls the telescopic push rod 5 to move to the corresponding position aligned with the sorting box 3, and then the telescopic push rod 5 extends to push the sorting box 3 onto the side conveyor belt. In this embodiment, the position change of the sorting box 3 between the various conveyor belts is achieved by moving the two telescopic push rods 5. The two telescopic push rods 5 are arranged relative to each other, which can achieve the position change of the sorting box 3 in different directions between the main conveyor belt 101, the first auxiliary conveyor belt 211, and the second auxiliary conveyor belt 221.
[0046] The sorting box 3 should be able to be fixed on the main conveyor belt 101, the first auxiliary conveyor belt 211 and the second auxiliary conveyor belt 221 and move along with the conveyor belt, and can also move smoothly and accurately between the different conveyor belts under the push of the telescopic push rod 5. Figure 3As shown, multiple insulating positioning bars 6 are arranged parallel and spaced along the conveying direction on both the main conveyor belt 101 and the auxiliary conveyor belt 201, and electromagnets 7 are fixed between two adjacent insulating positioning bars 6. A magnetic base 301 is provided at the bottom of the sorting box 3, and the sorting box 3 is attracted to the electromagnet 7 through the magnetic base 301.
[0047] It can be understood that the cooperation structure between the sorting box 3 and the conveyor belt in this embodiment is a magnetic structure. A plurality of electromagnet slots are isolated on the conveyor belt by a plurality of parallel and spaced insulating positioning strips 6 (the electromagnet slot is the first installation slot 102 on the main conveyor belt 101, and the second installation slot 202 on the first sub-conveyor belt 211 and the second sub-conveyor belt 221). An electromagnet 7 is arranged in each electromagnet slot. The width of the electromagnet 7 is consistent with the thickness of the magnetic base 301 of the sorting box 3. The sorting box 3 can adopt a lightweight acrylic box body and an iron magnetic base 301, so that its center of gravity is low and the friction with the paper is extremely small. During installation, the sorting boxes 3 are placed one by one on the electromagnets 7 located on one side above the conveyor belt. Whether the electromagnets 7 are powered is controlled by the control unit software system. Each electromagnet 7 is independently powered on and off. When the sorting box 3 is required to be fixed on the conveyor belt, the relevant electromagnet 7 is powered on to firmly attract the sorting box 3. When the sorting box 3 is required to be pushed to another conveyor belt by the telescopic push rod 5, the relevant electromagnet 7 is powered off to ensure smooth movement. The magnetic structure of this embodiment has the advantage of being easy to disassemble and install, making it suitable for scenarios that require frequent cleaning and maintenance, as well as scenarios where sorting boxes 3 of different sizes need to be frequently replaced.
[0048] In other embodiments of the paper document automatic sorting and conveying device of the present invention, see Figure 4 As shown, multiple T-shaped positioning strips 8 are arranged parallel to and spaced apart from each other along the conveying direction on both the main conveyor belt 101 and the auxiliary conveyor belt 201, with mortise and tenon grooves 9 formed between adjacent T-shaped positioning strips 8. An inverted T-shaped base 302 is provided at the bottom of the sorting box 3, and the sorting box 3 is movably engaged with the mortise and tenon grooves 9 via the inverted T-shaped base 302.
[0049] It will be appreciated that the matching structure between the sorting box 3 and the conveyor belt in this embodiment is a mortise and tenon structure. The conveyor belt is separated by multiple parallel, spaced T-shaped positioning strips 8 to form a plurality of inverted T-shaped mortise and tenon grooves 9 (the mortise and tenon grooves 9 are first mounting grooves 102 on the main conveyor belt 101 and second mounting grooves 202 on the first and second auxiliary conveyor belts 211 and 221). An inverted T-shaped base 302 is provided at the bottom of the sorting box 3, which is compatible with the mortise and tenon grooves 9. The sorting box 3 can be constructed of a lightweight acrylic body and an iron inverted T-shaped base 302, resulting in a low center of gravity and minimal friction with the paper. During installation, the sorting box 3 can be positioned one by one in each mortise and tenon groove 9 on the conveyor belt via the inverted T-shaped base 302. The matching structure of the inverted T-shaped base 302 and the mortise and tenon grooves 9 allows the sorting box 3 to be fixed to the conveyor belt and follow its movement, while also enabling smooth and precise transverse movement between different conveyor belts under the propulsion of the telescopic push rod 5.
[0050] Furthermore, in some embodiments of the paper document automatic sorting and conveying device of the present invention, see Figure 1 As shown, a plurality of monitoring radars 10 are installed on the inner wall of the main body shell 4. The plurality of monitoring radars 10 are respectively arranged corresponding to the main conveying mechanism 1 and the auxiliary conveying mechanism 2. The monitoring radars 10 are facing the conveyor belt surface of the main conveying mechanism 1 or the auxiliary conveying mechanism 2 to monitor the degree of deviation of the conveyor belt compared to the initial position.
[0051] It will be appreciated that in this embodiment, monitoring radars 10 are installed on the inner wall of the main housing 4 at locations corresponding to one end of the main conveyor belt 101, the first auxiliary conveyor belt 211, and the second auxiliary conveyor belt 221. These three monitoring radars 10 are used to monitor the positions of the three conveyor belts, respectively. It is important to understand that proper alignment between the sorting box 3 and the paper inlet and outlet, and between the sorting box 3 and the conveyor belt slots, is essential for the hardware to function properly. Even with the most precise rotation of the conveyor belt, slight errors will always occur. These errors accumulate with each operation and may eventually amplify to a point where they can cause component misalignment. Coupled with factors such as equipment wear, aging, and part replacement, over- or under-rotation of the conveyor belts is an inevitable problem. Therefore, this embodiment utilizes the monitoring radars 10 to establish an active error correction mechanism. The conveyor belt position monitoring radars (monitoring radars 10) monitor the degree of conveyor belt deviation from its initial position (whether the sorting box 3 and the paper inlet and outlet, and the sorting box 3 and the conveyor belt slots remain aligned during transport). These measurements are recorded and fed back to the control unit, which automatically analyzes and controls the reset of the deviated conveyor belts.
[0052] In some embodiments of the automatic paper document sorting and conveying device of the present invention, the scanning unit of the control mechanism includes a camera element, a storage module, and a data transmission module, which are electrically connected in sequence. The camera element is used to generate scans of paper documents that fall into the sorting box 3. The camera element can be a camera device based on optical character recognition (OCR) technology or other imaging technology. Before the paper documents fall into the sorting box 3 through the paper inlet 401, the camera element is responsible for capturing the image of the document and converting it into a digital scan. The optical character recognition (OCR) technology or other imaging technology is used to ensure high-quality image capture. The storage module is used to store the scans generated by the camera element. Once the paper documents are converted into digital format by the camera element, the generated scans are temporarily or permanently stored in the storage module. The storage module can be a built-in flash memory, a hard drive, or other form of non-volatile storage medium. The data transmission module is used to transmit the scans generated by the camera element to the control unit. The data transmission module can be a computer, server, or other type of processing device. Data transmission can be achieved via a wired connection (such as USB, SATA, etc.) or a wireless connection (such as Wi-Fi, Bluetooth, etc.).
[0053] The control unit includes an identification and filtering module, an algorithm management module and an instruction control module. The identification and filtering module is electrically connected to the data transmission module to receive the scanned paper documents generated by the scanning unit and extract the information required for sorting on the scanned paper documents; the algorithm management module is electrically connected to the identification and filtering module. The algorithm management module calculates and generates sorting control instructions based on preset sorting rules and the information required for sorting on the scanned paper documents extracted by the identification and filtering module; the instruction control module is electrically connected to the algorithm management module. The instruction control module controls the actions of the main conveying mechanism 1, the auxiliary conveying mechanism 2 and the toggle mechanism based on the sorting control instructions generated by the algorithm management module.
[0054] The following describes in detail the control process of the main transmission mechanism 1, the auxiliary transmission mechanism 2 and the shifting mechanism in combination with the modules constituting the control unit.
[0055] The control unit's recognition and filtering module is electrically connected to the scanning unit and is used to receive scanned paper documents generated by the scanning unit and extract the information required for sorting from the scanned paper documents. This module provides scanned document recognition functionality based on optical character recognition (OCR) technology. When the scanning unit transmits the scanned document to the control unit, the recognition and filtering module extracts the values to be sorted from the scanned document according to pre-set rules and records the position of the sorting box 3 corresponding to each value.
[0056] The recognition and filtering module preset corresponding recognition and filtering rules for the file content, numerical format, page size, and sorting requirements of each task scenario. Taking the publication binding task as an example, the sorting requirement is to sort in ascending order by the publication date. Therefore, it is necessary to set the OCR recognition area based on the publication size and the position where the date appears on the page. Then, according to the date format "XXXX year XX month XX day", the three Chinese characters "year", "month", and "day" can be used as the positioning points for OCR recognition to further narrow the range where the key information appears. At the same time, since the dates are all Arabic numerals, when setting the filtering rules, characters other than Arabic numerals are excluded, which can effectively avoid misidentifying the number "1" as "l", "丨", "I", "Ⅰ", etc., which interfere with the recognition rate.
[0057] The algorithm management module of the control unit is electrically connected to the recognition and filtering module. The algorithm management module calculates and generates a sorting control instruction based on the preset sorting rules and the information required for sorting extracted from the scanned copy of the paper document by the recognition and filtering module. The algorithm management module converts the software algorithm into instructions that can be executed by hardware devices. Specifically, based on the characteristics of the sorting algorithms of different preset sorting rules, the algorithm management module sets several hardware (main transmission mechanism 1, auxiliary transmission mechanism 2, and拨动机构) operation nodes respectively. After calculating by nodes, the algorithm management module gives the goals that each hardware device should complete at each node and generates corresponding operation instructions, and each hardware device can execute the instructions sequentially by nodes.
[0058] The following takes a specific algorithm as an example to illustrate the method of managing the algorithm by nodes. Suppose the task requires sorting a number of values to be sorted in ascending order. The method is as follows.
[0059] Example algorithm 1: Starting from the first value, compare the sizes of adjacent two values in turn. If the previous value is greater than the latter value, swap their positions; otherwise, do not swap until the last value is compared. The algorithm management module takes the new queue calculated through the above process as the first node. Based on the queue formed by the first node, continue to start from the first value and repeat the above comparison and swapping process until a new queue is formed as the second node. From the above process, it can be seen that the maximum value in the entire queue at the first node will be at the last position, and the second-largest value will be at the penultimate position at the second node, and so on, continuously increasing the nodes until all values are arranged in the correct position. When using this algorithm, each time a node exists, the hardware device runs once, and the hardware device is responsible for adjusting the state of the paper document to be sorted from the state of the previous node to the state of the next node. When the algorithm management module calculates that the positions of the values in the queue no longer change after a certain node, then this node is taken as the final node for the hardware device to execute the task instruction this time.
[0060] Example Algorithm 2: Let m be a variable and n be the number of files to be sorted. The algorithm management module determines the size of n. If n ≥ 8, m = 4; otherwise, m = 2. During execution, the algorithm management module divides n by m, retaining the integer portion as the increment Δ. It then marks the rank of each value in the queue as a natural number, 1, 2, 3, 4, ..., n. Starting with the value at position 1, sort it and all values whose distance from it is an integer multiple of Δ in ascending order. This means sorting the values at positions 1, 1+Δ, 1+2Δ, ..., and updating the positions until the newly obtained values at positions 1, 1+Δ, 1+2Δ, ..., are already in ascending order. Then, starting with the value at position 2, sort it and all values whose distance from it is an integer multiple of Δ in ascending order. This means sorting the values at positions 2, 2+Δ, 2+2Δ, ..., and updating the positions until the newly obtained values at positions 2, 2+Δ, 2+2Δ, ..., are already in ascending order. This process continues in this way until the last value, position n, has been sorted once. The resulting queue is used as the first node. Next, subtract 1 from the variable m and repeat the process based on the queue obtained at node 1, resulting in a new queue as the second node. This process continues in this way until m = 1, and the final round of processing is repeated. When using this algorithm, each hardware device runs once for each node. The hardware device is responsible for adjusting the paper documents to be sorted from the state of the previous node to the state of the next node. When the algorithm management module calculates m=1, the node obtained by this sorting is used as the final node for the hardware device to execute the task instruction.
[0061] The two example algorithms above are merely examples of how to construct the algorithm management module of this embodiment. They do not represent all compatible algorithms, nor do they necessarily represent the algorithms that will be used to solve actual tasks. In actual implementation, the algorithms to be stored can be selected based on the specific business needs. The algorithm management module does not limit the number of algorithms that can be stored, and any ascending, descending, or other sorting algorithms are compatible.
[0062] The control unit's instruction control module is electrically connected to the algorithm management module. Based on the sorting control instructions generated by the algorithm management module, the instruction control module controls the transmission sorting unit to execute the sorting instructions. The instruction control module is responsible for converting the hardware execution nodes of each algorithm in the algorithm management module into specific instructions for execution by the hardware device. Specifically, assume that the number of values to be sorted is n, and the positions of each value in the queue are 1, 2, 3, ..., n, in order. At each node, the new queue generated by that node is compared with the old queue of the previous node to identify the positions that have changed compared to the old queue. These positions and the amount of change are marked using the (x, y) format. For example, if a value ranked 1 in the previous node moves to position 3 at the current node, it is recorded as (1, +2); if a value ranked 5 in the previous node moves to position 4 at the current node, it is recorded as (5, -1); and if a value ranked 6 in the previous node remains at position 6 at the current node, it is recorded as (6, 0). For the hardware, when y < 0, (x, y) means that the sorting box 3 at position x on the main conveyor 101 needs to be pushed to the first secondary conveyor 211 via the telescopic push rod 5. The first secondary conveyor 211 then moves y slots of sorting boxes 3. Finally, the telescopic push rod 5 is used to push the sorting box 3 back to the main conveyor 101, ensuring that no other sorting boxes 3 are at position x + y on the main conveyor 101. When y > 0, (x, y) means that the sorting box at position x on the main conveyor 101 needs to be pushed to the second secondary conveyor 221 via the telescopic push rod 5. The second secondary conveyor 221 then moves y slots of sorting boxes 3. Finally, the telescopic push rod 5 is used to push the sorting box 3 back to the main conveyor 101, ensuring that no other sorting boxes 3 are at position x + y on the main conveyor 101. When y = 0, the sorting box 3 at position x on the main conveyor 101 does not need to be moved at this node.
[0063] To achieve the above process, further methods are as follows.
[0064] Taking ascending sorting as an example, first, control the telescopic push rod 5 to push all the sorting boxes 3 with y < 0 from the main conveyor belt 101 to the first sub-conveyor belt 211, and push all the sorting boxes with y > 0 from the main conveyor belt 101 to the second sub-conveyor belt 221. The sorting box 3 with y = 0 remains on the main conveyor belt 101. The above process is the first group of running instructions. Then, the non-zero y values appearing in (x, y) of each sorting box of this node are sorted in ascending order according to the absolute value. If there are repeated absolute values, only one is retained. Suppose there are N non-zero and non-repeating absolute values, which are in order from small to large: |y1|, |y2|, |y3|, ..., |y N|. Finally, the control hardware device executes the remaining instructions in N steps. The second group of operating instructions is: when controlling the first sub-conveyor 211 and the second sub-conveyor 221, they move a distance of |y1| sorting boxes 3 in their respective running directions. After the movement is completed, all sorting boxes 3 on the first sub-conveyor 211 and the second sub-conveyor 221 whose absolute value of y is equal to |y1| are pushed to the main conveyor 101 through the telescopic push rod 5, and other sorting boxes 3 are not processed; the third group of operating instructions is: when controlling the first sub-conveyor 211 and the second sub-conveyor 221, they move a distance of |y2|-|y1| sorting boxes 3 in their respective running directions. After the movement is completed, all sorting boxes 3 on the first sub-conveyor 211 and the second sub-conveyor 221 whose absolute value of y is equal to |y2| are pushed to the main conveyor 101 through the telescopic push rod 5. Conveyor belt 101, other sorting boxes are not processed; the fourth group of operation instructions is: control the first sub-conveyor belt 211 and the second sub-conveyor belt 221 to move the distance of |y3|-|y2| sorting boxes 3 in their respective running directions, and after the movement is completed, all sorting boxes 3 with the absolute value of y equal to |y3| on the first sub-conveyor belt 211 and the second sub-conveyor belt 221 are pushed to the main conveyor belt 101 through the telescopic push rod 5, and other sorting boxes are not processed; and so on, the distance the conveyor belt moves each time in the subsequent instructions is the distance of "the absolute value of the position equal to (the group number - 1 of this group)" minus "the absolute value of the position equal to (the group number - 2 of this group)", until the N+1th group of operation instructions is executed, that is, all the absolute values of y are equal to |y N |The sorting box is pushed to the main conveyor belt 101. At this time, all the sorting boxes on the main conveyor belt 101 are moved to the position required by this node.
[0065] When all node instructions are completed, the sorting box has completed sorting on the main conveyor belt 101 according to the task requirements. The instruction control module automatically controls the main conveyor belt 101 to start, and coordinates the control of the retractable paper receiving plate 12, guiding the sorted paper documents through the retractable paper receiving plate 12 and sliding them into the paper receiving box 11 through the second paper outlet 1002.
[0066] In addition, in some specific examples, the command control module can also provide two one-key shortcut commands: reverse order and random shuffle.
[0067] When executing the reverse order instruction, the control unit controls the hardware device to swap the order of the first and last sorting boxes 3 in the queue to be sorted one by one. Assume that there are M queues to be sorted. The order of swapping is: the sorting boxes with positions 1 and M, the sorting boxes with positions 2 and M-1, and so on, until all the swaps are completed or only one sorting box remains.
[0068] When executing the random scramble command, the user can set a minimum scramble ratio according to production requirements. Suppose there are M queues to be sorted. First, the software system generates a random number ξ, which must satisfy 0<ξ<M, and then randomly generates ξ random numbers y1, y2, y3, ...y that also satisfy greater than 0 and less than M. ξ Then, the control hardware device will be equal to y1, y2, y3, ... y ξ After the movement is completed, a new random number is generated and the above process is repeated until the proportion of the sorting boxes 3 that are not in the initial position to the total sorting boxes 3 reaches the minimum scramble ratio set by the user.
[0069] Furthermore, in some embodiments of the automatic sorting and conveying device for paper documents of the present invention, the control unit also includes a simulation sorting module, which is electrically connected to the scanning unit and the algorithm management module. The simulation sorting module simulates the operation of the conveying sorting unit based on the initial order of all paper documents scanned by the scanning unit and the sorting control instructions for each paper document generated by the algorithm management module, obtains the most efficient sorting algorithm, and feeds it back to the algorithm management module.
[0070] It should be understood that this embodiment supports combining the initial order of the files to be sorted, the structural characteristics and functional logic of the hardware device through the simulation sorting module, simulates the operation of the hardware device according to the stored algorithm node, and automatically selects the most efficient sorting algorithm.
[0071] Taking the two example algorithms described above (Example Algorithm 1 and Example Algorithm 2) as an example, assume that there are 5 files to be sorted, numbered 6, 3, 11, 5, and 1, respectively, and they are required to be sorted in ascending order by number. The simulation sorting method is as follows (the present invention also supports descending sorting or other sorting types. Since the principles are the same, this embodiment only takes ascending order as an example. The present invention is not affected by the number of values to be sorted. For the convenience of analyzing the method, this embodiment only takes 5 values as an example).
[0072] Substituting the node partitioning method of example algorithm 1, we get the following process. For details, see Figure 5 shown.
[0073] First, compare [6, 3] and swap to get [3, 6, 11, 5, 1]; compare [6, 11] and do not swap; compare [11, 5] and swap to get [3, 6, 5, 11, 1]; compare [11, 1] and swap to get [3, 6, 5, 1, 11]. Therefore, [3, 6, 5, 1, 11] is the goal that the hardware device needs to achieve when running node one. Next, compare [3, 6] and do not swap; compare [6, 5] and swap to get [3, 5, 6, 1, 11]; compare [6, 1] and swap to get [3, 5, 1, 6, 11]; compare [6, 11] and do not swap. Therefore, [3, 5, 1, 6, 11] is the goal that the hardware device needs to achieve when running node two. Then, comparing [3, 5], no swap; comparing [5, 1], swapping yields [3, 1, 5, 6, 11]; comparing [5, 6], no swap; comparing [6, 11], no swap. Therefore, [3, 1, 5, 6, 11] is the target that the hardware device needs to achieve when running node three. Furthermore, comparing [3, 1], swapping yields [1, 3, 5, 6, 11]. Comparing [3, 5], no swap; comparing [5, 6], no swap; comparing [6, 11], no swap. Therefore, [1, 3, 5, 6, 11] is the target that node four needs to achieve. According to this method, there's no need to adjust the positions of the numbers after this node, indicating that the sorting is complete. Node four is the final node for the hardware device to execute the instructions for this task.
[0074] Based on the nodes of the example algorithm 1 obtained in the previous step, the following instructions are obtained according to the method described above for converting the hardware operation nodes of each algorithm into specific instructions for hardware devices to execute. Figure 5As shown, the initial queue is known to be [6, 3, 11, 5, 1], and the target queue of node one is [3, 6, 5, 1, 11]. The positions of the initial queue and their changes at node one can be marked as (1, +1), (2, -1), (3, +2), (4, -1), and (5, -1), respectively. The absolute values of the non-zero changes after deduplication are sorted in ascending order as follows: 1, 2. Therefore, the first set of instructions for node one in example algorithm one is to control the telescopic push rod 5 to push the sorting box 3 with the value [3, 5, 1] from the main conveyor belt 101 to the first secondary conveyor belt 211, and to push the sorting box 3 with the value [6, 11] from the main conveyor belt 101 to the second secondary conveyor belt 221. The second set of instructions is: first control the first and second sub-conveyor belts 211 and 221 to move in their respective running directions by a distance of one sorting box 3. After the movement is completed, the sorting boxes 3 with the values [3, 5, 1] on the first sub-conveyor belt 211 and the value [6] on the second sub-conveyor belt 221 are pushed to the main conveyor belt 101 through the telescopic push rod 5. The other sorting boxes 3 are not processed. The third set of instructions is: first control the first and second sub-conveyor belts 211 and 221 to move in their respective running directions by a distance of 2-1=1 sorting box 3. After the movement is completed, the sorting box with the value
[11] on the second sub-conveyor belt 221 is pushed to the main conveyor belt 101 through the push rod. At this point, the hardware device has completed the task of the first node, and the sorting boxes have been rearranged on the main conveyor belt 101 in the order [3, 6, 5, 1, 11].
[0075] Given that the target queue of node 2 is [3, 5, 1, 6, 11], the positions of node 1 and their changes in node 2 can be marked as (1, 0), (2, +2), (3, -1), (4, -1), and (5, 0), respectively. The absolute values of the non-zero changes after deduplication are sorted in ascending order as 1 and 2. Therefore, the first set of instructions for node 2 in example algorithm 1 is to control the telescopic push rod 5 to push the sorting box 3 with the value [5, 1] from the main conveyor belt 101 to the first secondary conveyor belt 211, and to push the sorting box 3 with the value [6] from the main conveyor belt 101 to the second secondary conveyor belt 221. The second set of instructions is: first control the first and second sub-conveyor belts 211 and 221 to move in their respective running directions by the distance of one sorting box 3. After the movement is completed, the sorting box 3 with the value [5, 1] on the first sub-conveyor belt 211 is pushed to the main conveyor belt 101 through the telescopic push rod 5. Other sorting boxes 3 are not processed. The third set of instructions is: first control the first and second sub-conveyor belts 211 and 221 to move in their respective running directions by the distance of 2-1=1 sorting box 3. After the movement is completed, the sorting box 3 with the value [6] on the second sub-conveyor belt 221 is pushed to the main conveyor belt 101 through the telescopic push rod 5. At this point, the hardware device has completed the task of the second node, and the sorting boxes 3 have been rearranged on the main conveyor belt 101 in the order [3, 5, 1, 6, 11].
[0076] Given that the target queue of node three is [3, 1, 5, 6, 11], the positions of node two and their changes in node three can be marked as (1, 0), (2, +1), (3, -1), (4, 0), and (5, 0) in order, where the absolute values of the non-zero changes after deduplication are sorted in ascending order as: 1. Therefore, the first set of instructions for node three in example algorithm one is to control the telescopic push rod 5 to push the sorting box 3 with the value [5] from the main conveyor belt 101 to the first sub-conveyor belt 211, and to push the sorting box 3 with the value [1] from the main conveyor belt 101 to the second sub-conveyor belt 221. The second set of instructions is to first control the first sub-conveyor belt 211 and the second sub-conveyor belt 221 to move the distance of one sorting box 3 in their respective running directions. After the movement is completed, the sorting box 3 with the value [5] on the first sub-conveyor belt 211 and the value [1] on the second sub-conveyor belt 221 are pushed to the main conveyor belt 101 by the telescopic push rod 5. At this time, the hardware device has completed the task of the third node, and the sorting boxes 3 have been rearranged on the main conveyor belt 101 in the order of [3, 1, 5, 6, 11].
[0077] Given that the target queue of node four is [1, 3, 5, 6, 11], the positions of node three and their changes in node four can be marked as (1, +1), (2, -1), (3, 0), (4, 0), and (5, 0) in order, where the absolute values of the non-zero changes after deduplication are sorted in ascending order as follows: 1. Therefore, the first set of instructions for node four in example algorithm one is: control the telescopic push rod 5 to push the sorting box 3 with the value [1] from the main conveyor belt 101 to the first sub-conveyor belt 211, and push the sorting box 3 with the value [3] from the main conveyor belt 101 to the second sub-conveyor belt 221. The second set of instructions is: first control the first sub-conveyor belt 211 and the second sub-conveyor belt 221 to move the distance of one sorting box 3 in their respective running directions. After the movement is completed, the sorting box 3 with the value [1] on the first sub-conveyor belt 211 and the value [3] on the second sub-conveyor belt 221 are pushed to the main conveyor belt 101 by the telescopic push rod 5. At this time, the hardware device has completed the task of the fourth node, that is, all sorting tasks, and the sorting boxes 3 have been rearranged on the main conveyor belt 101 in the order of [1, 3, 5, 6, 11].
[0078] Substituting the node partitioning method of example algorithm 2, we get the following process. For details, see Figure 6 shown.
[0079] First, the control unit determines that the number of values n in the queue to be sorted [6, 3, 11, 5, 1] is 5, so m=2. Then, starting from [6], all values whose distance from it is 2 and an integer multiple of 2 are sorted in ascending order, that is, [6, 11, 1] is sorted in ascending order to obtain [1, 6, 11], where [1] is ranked 1, [6] is ranked 3, and
[11] is ranked 5. Then, starting from [3], all values whose distance from it is 2 and an integer multiple of 2 are sorted in ascending order, that is, [3, 5] is sorted in ascending order to obtain [3, 5]. The ranking has not changed, where [3] is still ranked 2 and [5] is still ranked 4. Since the last value [1] in the queue has already participated in the sorting, the re-sorted values are arranged in the new ranking order of 1, 2, 3, 4, 5 to form a new queue [1, 3, 6, 5, 11]. Then [1, 3, 6, 5, 11] is the goal that the hardware device needs to achieve when running node one. Then subtract 1 from m to get m=1, and repeat the above operation based on the queue [1, 3, 6, 5, 11] obtained based on node one. Specifically, starting from [1], all values with a distance of 1 and an integer multiple of 1 are sorted in ascending order, that is, the entire queue [1, 3, 6, 5, 11] is directly sorted in ascending order to obtain [1, 3, 5, 6, 11]. Then [1, 3, 5, 6, 11] is the goal that the hardware device needs to achieve when running node two. According to the requirements of this method, when m=1, the node is the final node for the device to execute the instructions of this task, indicating that the sorting has been completed, and node two is the final node for the hardware device to execute the instructions of this task.
[0080] Based on the nodes of the example algorithm 2 obtained in the previous step, the following instructions are obtained according to the method described above to convert the hardware running nodes of each algorithm into specific instructions for the hardware device to execute. Figure 6As shown, the initial queue is known to be [6, 3, 11, 5, 1], and the target queue of node one is [1, 3, 6, 5, 11]. The positions of the initial queue and their changes at node one can be marked as (1, +2), (2, 0), (3, +2), (4, 0), and (5, -4), respectively. The absolute values of the non-zero changes after deduplication are sorted in ascending order as follows: 2, 4. Therefore, the first set of instructions for node one in example algorithm 2 is to control the telescopic push rod 5 to push the sorting box 3 with the value [1] from the main conveyor belt 101 to the first sub-conveyor belt 211, and to push the sorting box 3 with the value [6, 11] from the main conveyor belt 101 to the second sub-conveyor belt 221. The second set of instructions is: first control the first and second sub-conveyor belts 211 and 221 to move in their respective directions by a distance of two sorting boxes 3. After the movement is completed, the sorting box 3 with the value [6, 11] on the second sub-conveyor belt 221 is pushed to the main conveyor belt 101 via the telescopic push rod 5. The other sorting boxes 3 are not processed. The third set of instructions is: first control the first and second sub-conveyor belts 211 and 221 to move in their respective directions by a distance of 4-2=2 sorting boxes 3. After the movement is completed, the sorting box 3 with the value [1] on the first sub-conveyor belt 211 is pushed to the main conveyor belt 101 via the telescopic push rod 5. At this point, the hardware device has completed the task of the first node, and the sorting boxes 3 have been rearranged on the main conveyor belt 101 in the order [1, 3, 6, 5, 11].
[0081] Given that the target queue of node 2 is [1, 3, 5, 6, 11], the positions of node 1 and its changes in node 2 can be marked as (1, 0), (2, 0), (3, +1), (4, -1), and (5, 0) in order, where the absolute values of the non-zero changes after deduplication are sorted in ascending order as: 1. Therefore, the first set of instructions for node 2 in example algorithm 2 is to control the telescopic push rod 5 to push the sorting box 3 with the value [5] from the main conveyor belt 101 to the first sub-conveyor belt 211, and to push the sorting box 3 with the value [6] from the main conveyor belt 101 to the second sub-conveyor belt 221. The second set of instructions is to first control the first sub-conveyor belt 211 and the second sub-conveyor belt 221 to move the distance of one sorting box 3 in their respective running directions. After the movement is completed, the sorting box 3 with the value [5] on the first sub-conveyor belt 211 and the value [6] on the second sub-conveyor belt 221 are pushed to the main conveyor belt 101 by the telescopic push rod 5. At this time, the hardware device has completed the task of the second node, that is, all sorting tasks, and the sorting boxes 3 have been rearranged on the main conveyor belt 101 in the order of [1, 3, 5, 6, 11].
[0082] After obtaining results based on the two example algorithms, the simulation sorting module first analyzes the efficiency of each solution on the hardware. The simulation process and simulation diagrams show that, in this task context, nodes using Example Algorithm 1 require 10 sets of instructions to complete the task, while nodes using Example Algorithm 2 require 5 sets of instructions. Executing instructions regardless of node also requires 5 sets of instructions. Therefore, in this task context, Example Algorithm 2 and the solution that executes instructions regardless of node are more efficient than Example Algorithm 1.
[0083] Furthermore, the simulation sorting module performs an energy consumption analysis on solutions with equal efficiency. As shown in the simulation process and simulation diagram above, in this task context, using Algorithm 2 (Example 2) requires the first and second conveyor belts 211 and 221 to be activated three times, each with a total travel distance of 5, and the telescopic push rod 5 to be activated ten times. Executing the instruction regardless of the node requires the first and second conveyor belts 211 and 221 to be activated four times, each with a total travel distance of 4, and the telescopic push rod 5 to be activated eight times. For magnetic structures, the activation of the conveyor belts also requires the electromagnet 7 to be energized, so these factors must be considered comprehensively. The control unit supports pre-setting a formula to calculate the total energy consumption of each solution based on the characteristics of each component. The simulation sorting module also allows the user to set an energy consumption threshold based on production requirements. If multiple solutions with the same and optimal efficiency are presented during the simulation sorting, the solution with the fewest conveyor belt activations will be automatically selected to extend the hardware lifespan, provided the energy consumption difference does not exceed the energy consumption threshold. If the number of conveyor belt activations is the same, the solution with the lowest energy consumption will be automatically selected.
[0084] By combining the above methods, the control unit's simulation sorting module automatically selects the optimal solution that balances efficiency and energy consumption. After selecting the solution, the control unit issues an operating instruction to the hardware device through the instruction control module to start sorting paper documents.
[0085] In addition, each time the simulation sorting module simulates, the control unit will not only substitute the stored algorithm nodes, but also simulate a special case: skipping the nodes and directly letting the hardware device execute the running instructions with the final queue as the target. Figure 7As shown, the initial queue is known to be [6, 3, 11, 5, 1], and the final queue is [1, 3, 5, 6, 11]. The positions of the initial queue and their changes relative to the final queue can be marked as (1, +3), (2, 0), (3, +2), (4, -1), and (5, -4), respectively. The absolute values of the non-zero changes after deduplication are sorted in ascending order as follows: 1, 2, 3, 4. Therefore, when the sorting task is not divided into nodes, the first set of instructions is: control the telescopic push rod 5 to push the sorting box 3 with the value [5, 1] from the main conveyor belt 101 to the first secondary conveyor belt 211, and push the sorting box 3 with the value [6, 11] from the main conveyor belt 101 to the second secondary conveyor belt 221. The second set of instructions is: first control the first sub-conveyor 211 and the second sub-conveyor 221 to move the distance of one sorting box 3 in their respective running directions. After the movement is completed, the sorting box 3 with the value [5] on the first sub-conveyor 211 is pushed to the main conveyor 101 through the telescopic push rod 5. The other sorting boxes 3 are not processed. The third set of instructions is: first control the first sub-conveyor 211 and the second sub-conveyor 221 to move the distance of 2-1=1 sorting box 3 in their respective running directions. After the movement is completed, the sorting box 3 with the value
[11] on the second sub-conveyor 221 is pushed to the main conveyor 101 through the telescopic push rod 5. The other sorting boxes 3 are not processed. The fourth set of instructions is: first control the first sub-conveyor 211 and the second sub-conveyor 221 to move the distance of 3-2=1 sorting box 3 in their respective running directions. After the movement is completed, the sorting box 3 with the value [6] on the first sub-conveyor 211 is pushed to the main conveyor 101 through the telescopic push rod 5. The other sorting boxes are not processed. The fifth set of instructions is: first, control the first and second secondary conveyor belts 211 and 221 to move in their respective directions by a distance of 4-3 = 1 sorting box 3. After the movement is completed, the sorting box 3 with the value [1] on the first secondary conveyor belt 211 is pushed to the main conveyor belt 101 via the telescopic push rod 5. At this point, the hardware device has completed all sorting tasks, and the sorting boxes 3 have been rearranged on the main conveyor belt 101 in the order [1, 3, 5, 6, 11].
[0086] The control unit of this embodiment makes the software system growable and intelligent through the linkage of the algorithm management module, the instruction control module, and the simulation sorting module. On the one hand, the more algorithms stored, the higher the compatibility with complex sorting tasks. On the other hand, when faced with different tasks, the control unit can automatically find the one that best balances efficiency and energy consumption.
[0087] Furthermore, the control unit may also include a device reset module, an interactive interface module, and a log recording module. Among them, the device reset module is used to receive the position information of each of the three conveyor belts sent by the conveyor belt position monitoring radar 10, and supports the user to set an offset threshold according to production requirements. When the conveyor belt position monitoring radar 10 detects that the real-time position of a conveyor belt reaches the offset threshold relative to the default position, it will automatically rotate to the default position and reset when the conveyor belt is started next time. The interactive interface module is used to provide an interactive interface to show the user the operating status of each component of the equipment. The user can set and control the software and hardware through the interactive interface. The log recording module is used to record and save the operation logs of the control unit and other hardware devices, so that the user can continuously optimize the algorithm through the log. In addition to the above core functional modules, the control unit also includes basic support functions such as user management, authority management, and industry preferences.
[0088] Based on the process of the control unit controlling the main conveying mechanism 1, the auxiliary conveying mechanism 2 and the toggle mechanism, this embodiment also provides a more complete paper document automatic sorting and conveying device, see Figure 8 As shown, the automatic paper document sorting and conveying device further includes a paper feed box 11 and a paper discharge unit provided on the main body housing 4 .
[0089] The paper feed tray 11 is provided with a paper inlet for documents to be sorted and a paper outlet for documents to be sorted. A paper feed channel is formed between the paper inlet and the paper outlet for documents to be sorted. The paper feed channel is provided with a paper pickup mechanism. The scanning unit of the control mechanism is also provided on the paper feed tray 11. The paper outlet for documents to be sorted of the paper feed tray 11 is connected to the paper inlet 401 of the main body housing 4. The paper outlet unit is provided at the paper outlet 402 of the main body housing 4. The paper outlet unit includes a paper receiving box 12 and a retractable receiving paper board 13. The paper receiving box 12 is fixed to the side of the main body housing 4 and is located below the paper outlet 402. The retractable receiving paper board 13 is connected to the paper receiving box 12 and is provided through the paper outlet 402. The retractable receiving paper board 13 extends toward the main conveying mechanism 1 at an inclined angle.
[0090] It can be understood that the paper documents to be sorted are placed into the paper inlet of the paper feed box 11, and after passing through the paper feeding mechanism and the scanning unit, they enter the main body housing 4 from the paper outlet and paper inlet 401 for sorting. The paper documents after sorting are output from the paper outlet 402, and the output paper documents are received by the retractable paper receiving board 13 and fall into the paper receiving box 12.
[0091] The paper feed port for documents to be sorted of the paper feed box 11 is provided with a supporting plate, and the paper documents to be sorted can be placed horizontally or obliquely on the supporting plate. The paper pickup mechanism in the paper feed box 11 includes a paper pickup wheel, which is used to fit the surface of the paper document entering the paper feed port for documents to be sorted, and rotate the paper pickup wheel to pick up the paper documents entering the paper feed port for documents to be sorted page by page into the scanning unit. The paper pickup wheel can be located above the paper document so as to pick up the paper from the top of the stacked paper documents. The paper pickup wheel can also be located on the supporting plate and at the bottom of the paper document so as to pick up the paper from the bottom of the stacked paper documents.
[0092] The main conveyor mechanism 1 runs from the paper inlet 401 to the paper outlet 402 and has three functions: first, it moves the sorting boxes 3 along the direction of the conveyor belt's rotation so that they align with the paper inlet 401 one by one, allowing paper documents to enter each sorting box 3 page by page; second, it serves as a loading platform for swapping the positions of the sorting boxes 3 when stationary; and third, it moves the sorting boxes 3 along the direction of the conveyor belt's rotation so that the documents in the sorting boxes 3 fall one by one into the paper outlet. The secondary conveyor mechanism 2 includes a conveyor belt that moves in the same and opposite directions as the main conveyor mechanism 1. Its function is to move the sorting boxes along the direction of the conveyor belt's rotation and, in conjunction with the toggle mechanism, to swap the positions of the sorting boxes 3 on the main conveyor mechanism 1, thereby achieving sorting on the main conveyor mechanism 1.
[0093] See also Figure 9 As shown, Figure 9 The diagram illustrates the process of discharging sorted paper documents. It is understood that after sorting is complete, the control unit controls the main conveyor belt 101 to drive and controls the retractable catch plate 13 to extend to receive the paper documents dropped from the sorting box 3 on the main conveyor belt 101. The angle formed by the retractable catch plate 13 and the sorting box 3 is an angle that ensures that the paper documents can slide out of the sorting box 3. When the sorting box 3 rotates along with the main conveyor belt 101 to the position of the retractable catch plate 13, the control unit controls the main conveyor belt 101 to pause for a period slightly longer than the time required for the document to slide out. The control unit then controls the retractable catch plate 13 to retract, and the main conveyor belt 101 to start again. After the previously empty sorting box 3 rotates, the retractable catch plate 13 extends again to receive the next sorting box 3. The above process is repeated until all paper documents have been discharged. The paper receiving tray 12 is used to receive the sorted paper documents. The paper documents that slide out of the sorting box 3 are guided by the retractable catch plate 13 and slide into the paper receiving tray 12 in order from the paper outlet 402.
[0094] The present invention also provides a method for automatically sorting and conveying paper documents, applicable to the automatic sorting and conveying device for paper documents in any of the above-mentioned embodiments. In some embodiments, the method includes the following steps: a scanning unit of a control mechanism scans the paper documents and generates a scanned copy; a control unit of the control mechanism receives the scanned copy of the paper documents generated by the scanning unit to obtain sorting information of the scanned copy of the paper documents, and generates a sorting control instruction based on a preset sorting rule. The scanned paper documents fall page by page into each sorting box 3, and the main conveying mechanism 1 drives each sorting box 3 for conveyance. The control mechanism controls the operation of the toggle mechanism based on the sorting control instruction generated by the control unit, pushing the sorting box 3 to switch between the main conveying mechanism 1 and the auxiliary conveying mechanism 2. The main conveying mechanism 1 and the auxiliary conveying mechanism 2 adjust the positional order of each sorting box 3 on the main conveying mechanism 1 through the staggered coordination of the toggle mechanism, thereby achieving automatic sorting and conveying of paper documents.
[0095] It will be appreciated that in this embodiment of the automatic paper document sorting and conveying method, the control mechanism's scanning unit scans each page of the paper document to be sorted, generating a digital scan. This scan is then transmitted to the control unit, where information contained therein (such as page number and date) is used to determine the correct order of the documents. The control unit receives the scanned paper documents from the scanning unit and extracts key information for sorting. Based on a preset sorting rule (e.g., ascending or descending order), the control unit calculates and generates specific sorting control instructions. The scanned paper documents fall page by page into the sorting boxes 3 within the main housing. The main conveyor mechanism 1 is activated, driving the sorting boxes 3 containing the documents along their path. Based on the generated sorting control instructions, the control mechanism directs the shifting mechanism to shift the sorting boxes 3 between the main conveyor mechanism 1 and the auxiliary conveyor mechanism 2. Through staggered alignment, the sorting boxes 3 can change their relative positions on the main conveyor belt, thereby achieving document rearrangement. As the main conveyor mechanism 1 and the auxiliary conveyor mechanism 2 operate, as well as the toggle mechanism, the positions of the sorting boxes 3 are continuously adjusted until all the sorting boxes 3 are arranged on the main conveyor mechanism 1 in the predetermined order. At this point, all paper documents are automatically sorted accordingly. After sorting is completed, the main conveyor mechanism 1 continues to operate, bringing the sorted sorting boxes 3 to the paper output area. The documents slide out of the sorting boxes 3 and are guided to the paper receiving hopper via the retractable receiving paper board, completing the entire sorting and conveying process. The automatic sorting and conveying method for paper documents of this embodiment not only improves the efficiency of paper document sorting but also reduces the possibility of human error. It is suitable for applications requiring efficient and accurate processing of large quantities of paper documents.
[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A paper document automatic sorting and conveying device, characterized in that: include: A main conveying mechanism (1) comprises a pair of conveying shafts and a main conveying belt (101) wound around the pair of conveying shafts, wherein the main conveying belt (101) is provided with a plurality of first mounting grooves (102) spaced apart along a conveying direction; An auxiliary conveying mechanism (2) is arranged parallel to the side of the main conveying mechanism (1), the auxiliary conveying mechanism (2) comprising a pair of conveying shafts and an auxiliary conveying belt (201) wound around the pair of conveying shafts, and a plurality of second mounting grooves (202) are spaced apart on the auxiliary conveying belt (201) along the conveying direction; a plurality of sorting boxes (3), the sorting boxes (3) being movably arranged in the first mounting slot (102) of the main conveyor belt (101), the sorting boxes (3) having an upper end opening for receiving paper documents; a toggle mechanism, arranged on the side of the main conveying mechanism (1) or the auxiliary conveying mechanism (2), and used to push the sorting box (3) to switch positions between the first installation slot (102) and the second installation slot (202); The control mechanism comprises an electrically connected scanning unit and a control unit, wherein the scanning unit is used to scan the paper documents falling into the sorting box (3) and generate a scanned copy, and the control unit is also electrically connected to the main conveying mechanism (1), the auxiliary conveying mechanism (2) and the toggle mechanism respectively. The control unit receives the scanned copy generated by the scanning unit and controls the main conveying mechanism (1), the auxiliary conveying mechanism (2) and the toggle mechanism to operate based on a preset sorting rule, so as to realize the position sequence transformation of the plurality of sorting boxes (3) in the main conveying mechanism (1).
2. The automatic paper document sorting and conveying device according to claim 1, characterized in that: The paper document automatic sorting and conveying device further comprises a main body housing (4), wherein the main body housing (4) is provided with a paper feed port (401) and a paper outlet port (402), wherein the main conveying mechanism (1), the auxiliary conveying mechanism (2) and the shifting mechanism are located in the main body housing (4), wherein one end of the main conveying mechanism (1) is located directly below the paper feed port (401) and the other end is arranged toward the paper outlet port (402), and the scanning unit of the control mechanism is arranged at the paper feed port (401).
3. The automatic paper document sorting and conveying device according to claim 2, characterized in that: The auxiliary conveying mechanism (2) includes a first auxiliary conveying mechanism and a second auxiliary conveying mechanism, the first auxiliary conveying mechanism and the second auxiliary conveying mechanism are respectively located on both sides of the main conveying mechanism (1), the first auxiliary conveying mechanism includes a first auxiliary conveying belt (211), and the second auxiliary conveying mechanism includes a second auxiliary conveying belt (221), the first auxiliary conveying belt (211) and the main conveying belt (101) have the same conveying direction, and the second auxiliary conveying belt (221) and the main conveying belt (101) have a conveying direction opposite to each other.
4. The automatic paper document sorting and conveying device according to claim 3, characterized in that: The toggle mechanism comprises a plurality of telescopic push rods (5), the telescopic push rods (5) being fixed to the inner wall of the main body housing (4), the plurality of telescopic push rods (5) being distributed in parallel on a side of the first secondary conveyor belt (211) away from the main conveyor belt (101) and a side of the second secondary conveyor belt (221) away from the main conveyor belt (101), the telescopic push rods (5) being adapted to be telescoped toward or away from the main conveyor belt (101) so as to push the sorting box (3) to switch between the first mounting slot (102) of the main conveyor belt (101), the second mounting slot (202) of the first secondary conveyor belt (211), and the second mounting slot (202) of the second secondary conveyor belt (221).
5. The automatic paper document sorting and conveying device according to claim 3, characterized in that: The toggle mechanism comprises two telescopic push rods (5), which are slidably arranged on the inner wall of the main body shell (4) and are suitable for sliding along the conveying direction of the auxiliary conveying mechanism (2), one of the telescopic push rods (5) is located on the side of the first auxiliary conveyor belt (211) away from the main conveyor belt (101), and the other telescopic push rod (5) is located on the side of the second auxiliary conveyor belt (221) away from the main conveyor belt (101), and the telescopic push rod (5) is suitable for telescoping toward or away from the main conveyor belt (101) to push the sorting box (3) to switch between the first installation slot (102) of the main conveyor belt (101), the second installation slot (202) of the first auxiliary conveyor belt (211), and the second installation slot (202) of the second auxiliary conveyor belt (221).
6. The automatic paper document sorting and conveying device according to any one of claims 1 to 5, characterized in that: A plurality of insulating positioning strips (6) are arranged in parallel and spaced apart along the conveying direction on both the main conveyor belt (101) and the auxiliary conveyor belt (201), and an electromagnet (7) is fixed between two adjacent insulating positioning strips (6); A magnetic base (301) is provided at the bottom of the sorting box (3), and the sorting box (3) is adsorbed on the electromagnet (7) via the magnetic base (301).
7. The automatic paper document sorting and conveying device according to any one of claims 1 to 5, characterized in that: A plurality of T-shaped positioning strips (8) are arranged in parallel and spaced apart along the conveying direction on both the main conveyor belt (101) and the auxiliary conveyor belt (201), and a mortise and tenon groove (9) is formed between two adjacent T-shaped positioning strips (8); An inverted T-shaped base (302) is provided at the bottom of the sorting box (3), and the sorting box (3) is movably engaged with the mortise and tenon groove (9) via the inverted T-shaped base (302).
8. The automatic paper document sorting and conveying device according to any one of claims 2 to 5, characterized in that: A plurality of monitoring radars (10) are installed on the inner wall of the main housing (4), and the plurality of monitoring radars (10) are respectively arranged in a one-to-one correspondence with the main conveying mechanism (1) and the auxiliary conveying mechanism (2). The monitoring radars (10) face the conveyor belt surface of the main conveying mechanism (1) or the auxiliary conveying mechanism (2) to monitor the degree of deviation of the conveyor belt compared to the initial position.
9. The automatic paper document sorting and conveying device according to any one of claims 1 to 5, characterized in that: The scanning unit comprises a photographing and imaging element, a storage module and a data transmission module which are electrically connected in sequence, the photographing and imaging element is used to generate a scan of the paper document falling into the sorting box (3), the storage module is used to store the scan generated by the photographing and imaging element, and the data transmission module is used to transmit the scan generated by the photographing and imaging element to the control unit; The control unit includes an identification and filtering module, an algorithm management module, and an instruction control module. The identification and filtering module is electrically connected to the data transmission module to receive the scanned paper documents generated by the scanning unit and extract the information required for sorting from the scanned paper documents. The algorithm management module is electrically connected to the recognition and filtering module, and the algorithm management module calculates and generates a sorting control instruction based on a preset sorting rule and the information required for sorting on the scanned paper document extracted by the recognition and filtering module; the instruction control module is electrically connected to the algorithm management module, and the instruction control module controls the actions of the main transport mechanism (1), the auxiliary transport mechanism (2) and the toggle mechanism based on the sorting control instruction generated by the algorithm management module.
10. A method for automatically sorting and transmitting paper documents, characterized in that: The automatic paper document sorting and conveying device according to any one of claims 1 to 9 is applicable, and the automatic paper document sorting and conveying method comprises: The scanning unit of the control mechanism scans the paper document and generates a scanned copy. The control unit of the control mechanism receives the scanned copy of the paper document generated by the scanning unit to obtain sorting information of the scanned copy of the paper document, and generates a sorting control instruction based on a preset sorting rule. The scanned paper documents are dropped into the sorting boxes (3) page by page, and the main transport mechanism (1) drives the sorting boxes (3) to transport; The control mechanism controls the operation of the toggle mechanism based on the sorting control instruction generated by the control unit, thereby pushing the sorting box (3) to switch between the main conveying mechanism (1) and the auxiliary conveying mechanism (2); The main conveying mechanism (1) and the auxiliary conveying mechanism (2) adjust the position sequence of each sorting box (3) on the main conveying mechanism (1) by staggering and cooperating with the toggle mechanism, thereby realizing automatic sorting and conveying of paper documents.