A paper archive bundling device

Abstract

The application discloses a paper file bundling device and relates to the technical field of file management.The paper file bundling device comprises a workbench, a bundling plate, a sorting plate, a push plate, a baffle, a first positioning plate and a second positioning plate.A pressing plate is slidably installed on the push plate, and a plurality of wedge-shaped blocks are installed on the side of the pressing plate away from the reciprocating component.The inclination angles of the wedge-shaped blocks on the pressing plate gradually increase from top to bottom.The wedge-shaped blocks with small inclination angles on the upper side preliminarily separate the misaligned documents, the wedge-shaped blocks in the middle part expand the separation range, eliminate the middle layer accumulation gap, and the wedge-shaped blocks with large inclination angles on the lower side penetrate into the bottom layer and forcibly align the bottom files prone to deviation.Finally, the baffle is cooperated to realize the front and rear extrusion of the file bag, the file bag is completely sorted, and due to the uniform pressure distribution, the deformation of the file bag caused by friction or the resistance of the pressing plate is avoided, the sorting and bundling effect of the file bag is ensured, secondary sorting is avoided, and the bundling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of file management, in particular to a paper file binding device. Background Art

[0002] Paper files are often stored in file bags and then placed together. Often, related paper files need to be bundled together to prevent the bags from becoming disorganized. To bundle, flatten multiple files, stack them together, and then bundle them.

[0003] The Chinese invention patent with publication number CN116119135A in the prior art discloses a paper file bundling device, which belongs to the field of file management equipment. The device includes a base, a placement table and a bundling table are arranged above the base, a positioning plate 1 is symmetrically fixed to the upper surface of the placement table, a positioning plate 2 is fixed to one end of the positioning plate 1, the two positioning plates 1 are distributed in an eight-shaped shape, the two positioning plates 2 are parallel to each other, and a pressure roller is rotatably installed between the two positioning plates 1, a push plate is movably provided on the placement table for pushing the files to move, two baffles are fixed on the base, and the two baffles are located on one side of the bundling table; when bundling files, the device automatically aligns and flattens multiple files, which not only reduces the operation steps, but also avoids damage to protruding files caused by bundling, and during the entire operation process, the staff will not have excessive contact with multiple files, avoiding damage to the files caused by hand sweat and grease.

[0004] However, because files are usually stacked together when they are sorted, there will be greater friction between the file bags (and the file bags at the bottom will be under greater pressure because there are too many file bags stacked above them). On this basis, only limiting its movement trajectory by the positioning plate and then moving the pressing plate back and forth may not be able to align the stacked file bags, and the existence of friction may cause the file bags to deform, and manual assistance may be required later, affecting the efficiency of file sorting and bundling. Summary of the Invention

[0005] The embodiment of the present application solves the problem of affecting the efficiency of file organization and bundling in the prior art by providing a paper file bundling device.

[0006] The embodiment of the application provides a paper archive bundling device, which comprises a workbench, a bundling plate, a sorting plate, a push plate, a baffle, a positioning plate one and a positioning plate two, the bundling plate and the sorting plate are both installed on the top of the workbench, a plurality of rollers are installed on the top of the bundling plate and the sorting plate, a placing groove for placing a bundling belt is formed in the middle position of the top of the bundling plate, the baffle is vertically installed on the top of the workbench and is located on the side of the bundling plate away from the sorting plate, the push plate is slidingly installed on the top of the sorting plate, the positioning plate one has two pieces, the two pieces of the positioning plate one are parallelly installed on the top of the workbench and are located on the two sides of the upper portion of the bundling plate, the positioning plate two has two pieces, the two pieces of the positioning plate two are respectively installed on the side of the two pieces of the positioning plate one close to the sorting plate and are in the shape of "eight characters", a compression roller is further installed between the two pieces of the positioning plate one, a pressing plate is slidingly installed on the push plate, a reciprocating component capable of driving the pressing plate to reciprocate is further installed on the push plate, a plurality of wedge-shaped blocks are installed on the side of the pressing plate away from the reciprocating component, the wedge-shaped blocks are triangular bodies, and the angles of the inclined surfaces of the plurality of wedge-shaped blocks on the pressing plate gradually increase from top to bottom.

[0007] Further, a guide groove is formed in the inclined surface of each wedge-shaped block, and the guide groove is a V-shaped groove.

[0008] Further, the wedge-shaped block comprises a shell and an inclined plate, the guide groove is formed in the inclined plate, the shell is hollow and has an opening at the top, and the inclined plate is rotationally installed at the opening of the shell.

[0009] Further, a gas bag is installed in the hollow portion of the shell, the gas bag abuts against the inner wall of the inclined plate, a gas pump is installed on the push plate, the gas bag is connected and communicated with a gas filling pipe, the gas filling pipe penetrates through the side wall of the shell and is connected and communicated with the gas pump, and the gas pump can drive the gas bag to expand and abut against the inclined plate to rotate when the gas pump works.

[0010] Further, a through hole is formed in one side of the guide groove, a branch pipe is further installed on the gas bag, one end of the branch pipe is connected and communicated with the gas bag, the other end of the branch pipe is connected and communicated with the through hole, and an elastic valve is installed in the through hole.

[0011] Further, the elastic coefficient of the elastic valve is smaller than the elastic coefficient of the gas bag.

[0012] Further, a guide tooth is installed on the outer edge of the elastic valve.

[0013] Furthermore, a driving motor is installed on the side of the sorting plate away from the binding plate, and a driving groove is opened on the top of the sorting plate, and a screw is rotatably installed in the driving groove, the main shaft of the driving motor is fixedly installed with the screw, and the push plate is slidably installed in the driving groove, and the push plate and the screw are connected by threaded cooperation; the reciprocating component includes an L-shaped plate, a reciprocating motor and a reset rod, an L-shaped plate is installed on the push plate, and a reset rod is installed on the side of the pressing plate facing the L-shaped plate, the reset rod passes through the L-shaped plate, and a reset spring is sleeved on the reset rod, the reciprocating motor is installed on the push plate, and a cam is installed on the main shaft of the reciprocating motor, and the cam is in conflict with the pressing plate.

[0014] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0015] First, the present invention uses a wedge-shaped block with a smaller upper slope angle to initially separate misaligned documents. The wedge-shaped block in the middle part expands the separation range and eliminates the gaps in the middle layer. The wedge-shaped block with a larger lower slope angle penetrates into the bottom layer and forcibly aligns the easily deviated documents at the bottom, strongly correcting the misaligned documents at the bottom. Finally, it cooperates with the baffle to squeeze the file bag forward and backward, completely arranging the file bag. At the same time, due to the uniform pressure distribution, the deformation of the file bag caused by friction or resistance of the pressing plate is avoided, thereby ensuring the arrangement and bundling effect of the file bag, avoiding secondary arrangement, and improving the bundling efficiency.

[0016] Secondly, the present invention can reduce the friction between the wedge block and the file bag by setting the guide groove when the wedge block is inserted into the gap between the file bags. The air flow channel of the guide groove can quickly conduct friction heat and reduce the contact surface temperature. In addition, the design of the guide groove can also allow more air to enter between the file bags. Under the premise of protecting the file bags from damage, the friction between the file bags is further reduced, the difficulty of organizing the file bags is reduced, and the efficiency of organizing the file bags is accelerated.

[0017] Thirdly, the present invention not only enables the device to adapt to different states of file bags through the provision of the airbag: if the file bags are stacked relatively loosely, the airbag does not work at this time, and the wedge block is inserted in the initial state; if the file bags are stacked relatively tightly, the air pump works to drive the inclined plate to rise, and at this time the wedge block is inserted between the file bags to realize strong paging; and after the wedge block is inserted between the file bags, the air pump works to drive the airbag to expand and contract, realizing the lifting and lowering of the inclined plate, thereby realizing dynamic sorting of the file bags, simulating manual sorting, further reducing the friction between the file bags, and enhancing the sorting efficiency of the file bags;

[0018] Fourthly, the present invention installs an elastic valve. When there are many file bags stacked and the lower wedge block is subjected to a greater pressure after being inserted between the file bags, after the air pump works, if the airbag pressure is too high to achieve the lifting operation, the elastic valve is opened by air pressure at this time, and the gas is discharged through the guide groove to achieve a pressure relief operation, thereby protecting the airbag from being easily damaged. Moreover, after the airbag with lower pressure on the upper side is inflated, the continuously input gas can also open the elastic valve and be discharged through the guide groove, which not only protects the airbag and extends its service life, but also the gas flowing through the guide groove further reduces the friction between the file bags and takes away the heat generated by the friction. When facing some older file bags, it can also achieve the cleaning of their debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first angle;

[0020] Figure 2 A schematic diagram of the three-dimensional structure of the present invention from a second angle;

[0021] Figure 3 A sectional view of the three-dimensional structure of the finishing plate of the present invention;

[0022] Figure 4 Schematic diagram of the three-dimensional structure of the pressing plate of the present invention;

[0023] Figure 5 Schematic diagram of the three-dimensional structure of the pressing plate in the second embodiment of the present invention;

[0024] Figure 6 This is a cross-sectional view of a wedge block in a first working state in a third embodiment of the present invention;

[0025] Figure 7 A cross-sectional view of the wedge block in the second working state in the third embodiment of the present invention

[0026] Figure 8 Schematic diagram of the internal structure of the wedge block in the fourth embodiment of the present invention;

[0027] Figure 9 for Figure 8 Enlarged view of point A in the middle;

[0028] Figure 10 It is a schematic diagram of the end face structure of the present invention.

[0029] In the figure: 100, workbench; 110, binding plate; 111, placement groove; 120, sorting plate; 130, push plate; 131, drive motor; 132, drive groove; 133, screw; 140, baffle; 150, positioning plate 1; 160, positioning plate 2; 170, roller; 180, pressure roller; 190, pressing plate; 191, L-shaped plate; 192, reciprocating motor; 193, reset rod; 194, reset spring; 195, cam; 200, wedge block; 210, guide groove; 220, shell; 230, inclined plate; 240, airbag; 250, inflation tube; 260, branch pipe; 270, through hole; 280, elastic valve. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0031] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains; the terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0033] Example 1, as Figures 1-4As shown, the embodiment of the present application provides a paper file bundling device, including a workbench 100, a bundling plate 110, a sorting plate 120, a push plate 130, a baffle 140, a positioning plate 150 and a positioning plate 2 160, the bundling plate 110 and the sorting plate 120 are both installed on the top of the workbench 100, and a plurality of rollers 170 are installed on the top of the bundling plate 110 and the sorting plate 120, a placement groove 111 for placing the binding belt is opened in the middle position of the top of the bundling plate 110, the baffle 140 is vertically installed on the top of the workbench 100, and the baffle 140 is located on the side of the bundling plate 110 away from the sorting plate 120, the push plate 130 is slidably installed on the top of the sorting plate 120, and the positioning plate 150 has two pieces, two fixed The positioning plate 150 is installed parallel to the top of the workbench 100 and is located on both sides of the upper part of the binding plate 110. There are two positioning plates 160. The two positioning plates 160 are respectively installed on the side of the two positioning plates 150 close to the sorting plate 120, and the two positioning plates 160 are in an "eight-shaped" shape. A pressure roller 180 is also installed between the two positioning plates 150. A pressing plate 190 is slidably installed on the push plate 130. A reciprocating component that can drive the pressing plate 190 to reciprocate is also installed on the push plate 130. A plurality of wedge blocks 200 are installed on the side of the pressing plate 190 away from the reciprocating component. The wedge blocks 200 are triangular in shape, and the inclined angles of the plurality of wedge blocks 200 on the pressing plate 190 gradually increase from top to bottom;

[0034] During operation, the operator places the stacked file bags on the top of the sorting plate 120 (the height of the stacked file bags is not higher than the height of the pressing roller 180), and then the push plate 130 moves to contact the file bags and gradually moves the file bags toward the binding plate 110. While the push plate 130 pushes the file bags, the pressing plate 190 moves back and forth to achieve preliminary sorting and alignment of the file bags. When the pressing plate 190 moves back and forth, the wedge block 200 can be inserted into the gap between the file bags and achieve a certain degree of lifting of the file bags. Moreover, due to the different angles of the wedge blocks 200, the wedge block 200 with a smaller upper angle is initially The first step is to separate the misaligned documents. The wedge block 200 in the middle part expands the separation range and eliminates the gap in the middle layer. The wedge block 200 with a larger bevel angle at the bottom goes deep into the bottom layer to force the alignment of the files that are easy to deviate at the bottom. When the push plate 130 pushes the file bag to contact the positioning plate 160, the positioning plate 160 with a gradually decreasing spacing realizes the secondary sorting of the file bag, so that the file bag is aligned left and right. When the push plate 130 pushes the file bag to the bundling plate 110, it cooperates with the baffle 140 to complete the alignment of the file bag. At this time, the staff will pull up the bundling rope in the placement slot 111 to assist in completing the bundling operation of the file bag.

[0035] Preferably, a driving motor 131 is installed on the side of the sorting plate 120 away from the binding plate 110, and a driving groove 132 is opened on the top of the sorting plate 120, and a screw rod 133 is rotatably installed in the driving groove 132. The main shaft of the driving motor 131 is fixedly installed with the screw rod 133, and the push plate 130 is slidably installed in the driving groove 132, and the push plate 130 is connected to the screw rod 133 by threaded cooperation. When the driving motor 131 is working, it can drive the screw rod 133 to rotate, and then drive the push plate 130 to move; the reciprocating component includes an L-shaped plate 191, a reciprocating motor 192 and a reset rod 193, and an L-shaped plate 191 is installed on the push plate 130, and the pressing plate 190 is toward the L-shaped plate 191. A reset rod 193 is installed on one side, and the reset rod 193 passes through the L-shaped plate 191. A reset spring 194 is sleeved on the reset rod 193. The reciprocating motor 192 is installed on the push plate 130. A cam 195 is installed on the main shaft of the reciprocating motor 192. The cam 195 conflicts with the pressing plate 190. When the reciprocating motor 192 is working, it can drive the cam 195 to rotate. After the cam 195 rotates until its convex point contacts the pressing plate 190, it can drive the pressing plate 190 to move and compress the reset spring 194. As the cam 195 continues to rotate, the pressing plate 190 is reset by the elastic force of the reset spring 194, thereby realizing the reciprocating movement of the pressing plate 190. This is the existing technology and will not be elaborated on.

[0036] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0037] The wedge block 200 with a smaller upper slope angle is used to initially separate the misplaced documents. The wedge block 200 in the middle part expands the separation range and eliminates the gaps in the middle layer. The wedge block 200 with a larger lower slope angle penetrates into the bottom layer to force the easily offset files at the bottom to be aligned, and strongly correct the misplaced documents at the bottom. Finally, it cooperates with the baffle 140 to achieve the front and back squeezing of the file bag, while completely arranging the file bag. Since it realizes uniform pressure distribution, it avoids the deformation of the file bag caused by friction or resistance of the pressing plate 190, ensures the sorting and bundling effect of the file bag, avoids secondary sorting, and improves the bundling efficiency.

[0038] Furthermore, because files are typically stacked together during organization, friction between the file bags is high, and the lower the file bags are, the greater the pressure. Aligning the stacked files using only the positioning plates (positioning plate 150 and positioning plate 2 160) and a conventional pressing plate 190 is difficult and may even cause the files to deform. The reciprocating motion of the wedge blocks 200 is coordinated with the different angles of the slopes. The upper wedge block 200 with a smaller slope initially separates misaligned documents, while the middle wedge block 200 with a larger slope penetrates deeper into the bottom layer to forcibly align easily misaligned files. The airbag 240 operates during the reciprocating motion of the wedge block 200. When the files are loosely stacked, the airbag 240 is deactivated, and the wedge block 200 is inserted in its initial state. If the files are tightly stacked, the air pump inflates the airbag 240, lifting the inclined plate 230 and inserting the wedge block 200 between the files to forcibly separate them. This effectively solves the problem of difficult file alignment caused by friction and pressure.

[0039] Manual file organization involves flexibly adjusting the force and method based on the file's condition. The dynamic adjustment function of the airbag 240 simulates this process during the reciprocating motion of the wedge block 200. The airbag 240 drives the inclined plate 230 up and down, enabling dynamic file organization. The air pump's operation drives the airbag 240 to expand and contract, causing the inclined plate 230 to rise and fall accordingly. This further reduces friction between the file bags, enhances organizing efficiency, and makes the organizing process more similar to manual operation.

[0040] In the second embodiment, when the pressing plate 190 moves back and forth, the wedge block 200 is inserted back and forth into the gaps between the file bags. The reciprocating friction may generate heat. If the work lasts for a long time, the file bags may be charred (because the charring threshold of paper is 80 degrees Celsius). In order to avoid the above problem and further reduce the friction between the file bags, thereby improving the efficiency of organizing the file bags, as shown in FIG. Figure 5 As shown, further improvements are made to Example 1:

[0041] Preferably, a guide groove 210 is provided on the inclined surface of each wedge block 200, and the guide groove 210 is a V-shaped groove.

[0042] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0043] The setting of the flow guide groove 210 can reduce the friction between the wedge-shaped block 200 and the file bags when the wedge-shaped block 200 is inserted into the gap between the file bags. The airflow channel of the flow guide groove 210 can quickly guide out the friction heat, reduce the temperature of the contact surface, and the design of the flow guide groove 210 can also allow more air to enter between the file bags. Under the premise of protecting the file bags from being easily damaged, the friction between the file bags is further reduced, the arrangement difficulty of the file bags is reduced, and the arrangement efficiency of the file bags is improved.

[0044] In order to speed up the arrangement speed of the pressing plate 190 on the file bags, the embodiment two is further improved as shown in the embodiment three. Figure 6-Figure 7

[0045] Preferably, the wedge-shaped block 200 comprises a shell 220 and an inclined plate 230, the flow guide groove 210 is arranged on the inclined plate 230, the shell 220 is hollow inside and open at the top, and the inclined plate 230 is rotatably installed at the opening of the shell 220.

[0046] Preferably, an air bag 240 is installed in the hollow part inside the shell 220, the air bag 240 abuts against the inner wall of the inclined plate 230, a gas pump (not shown in the figure) is installed on the push plate 130, the air bag 240 is connected with an inflation tube 250, the inflation tube 250 penetrates through the side wall of the shell 220 and is connected with the gas pump, and the gas pump can drive the air bag 240 to expand and abut against the inclined plate 230 to rotate when working.

[0047] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0048] The setting of the air bag 240 can make the device adapt to file bags in different states. For example, if the file bags are loosely stacked, the air bag 240 does not work, and the wedge-shaped block 200 is inserted in the initial state. If the file bags are tightly stacked, the gas pump works to lift the inclined plate 230, and the wedge-shaped block 200 is inserted between the file bags to achieve strong page division. After the wedge-shaped block 200 is inserted between the file bags, the gas pump works to drive the air bag 240 to expand and contract, the inclined plate 230 is lifted and lowered, and the dynamic arrangement of the file bags is realized, the friction between the file bags is further reduced, and the arrangement efficiency of the file bags is improved.

[0049] In the embodiment four, the lower the file bag, the greater the pressure it bears. Therefore, the lower the wedge-shaped block 200 inserted between the file bags, the greater the pressure it bears. On this basis, if the gas pump works to drive the air bag 240 in the wedge-shaped block 200 to expand, the pressure borne by the air bag 240 is much greater than the pressure borne by the air bag 240 on the upper side. After a long time of work, the service life of the air bags 240 at different positions may be different. In order to avoid this problem, the embodiment five is further improved as shown in the following. Figure 8-Figure 9 ​Further improvements are made to the third embodiment as shown:

[0050] Preferably, the flow guide groove 210 is provided with a through hole 270 on one side, and a branch pipe 260 is installed on the air bag 240, one end of the branch pipe 260 communicates with the air bag 240, the other end of the branch pipe 260 communicates with the through hole 270, and an elastic valve 280 is installed in the through hole 270.

[0051] Preferably, the elastic coefficient of the elastic valve 280 is less than the elastic coefficient of the air bag 240.

[0052] Preferably, the elastic valve 280 is provided with a flow guide tooth (not shown in the figure) on the outer edge.

[0053] Working principle and process

[0054] Archives preliminary positioning

[0055] The device preliminarily positions the archives through the positioning plate one 150 and the positioning plate two 160. The positioning plate one 150 is located at the top of the workbench 100 and is used in cooperation with the positioning plate two 160. The positioning plate two 160 is arranged in a "split" shape to ensure that the archive bag remains stable during the bundling process and prevents misalignment.

[0056] Separate misaligned archives

[0057] The push plate 130 drives the pressing plate 190 to move forward and backward, and separates the archives through the wedge-shaped block 200. The wedge-shaped block 200 is designed to gradually increase the angle and gradually deepen the insertion gap into the archive bag from top to bottom. First, the upper wedge-shaped block 200 preliminarily separates the archives, then the middle wedge-shaped block 200 expands the separation range, and finally the lower wedge-shaped block 200 deeply penetrates the bottom layer to strongly correct the offset archives.

[0058] Compaction and arrangement

[0059] The pressing plate 190 compacts the archives to ensure that each part of the archive bag is uniformly subjected to pressure. Through the action of the compression roller 180, in cooperation with the baffle 140, the front and rear uniform compaction of the archive bag is realized, and the arrangement is completed.

[0060] Air bag dynamic adjustment

[0061] The air bag 240 is linked with the air pump. Through the work of the air pump, the air bag 240 expands or shrinks, further adjusting the tightness of the archive bag. If the archive bag is relatively loose, the air bag 240 does not work, and the wedge-shaped block 200 is inserted in the initial state; if the archive bag is relatively tight, the air bag 240 expands to lift the inclined plate 230, thereby increasing the separation force of the wedge-shaped block 200, ensuring that the arrangement of the archive bag is more accurate.

[0062] Friction reduction and temperature control

[0063] The design of the guide groove 210 reduces friction between the wedge block 200 and the file bag, and quickly dissipates heat generated during the friction, preventing damage to the files caused by excessive heat. Furthermore, the guide groove 210 allows air to flow between the file bags, further reducing friction and improving storage efficiency.

[0064] Pressure relief protection mechanism

[0065] When the pressure of the airbag 240 is too high and cannot be effectively lifted, the elastic valve 280 opens the through hole 270 through the gas pressure relief mechanism to discharge excess gas, protecting the airbag 240 from damage and ensuring the safety and durability of the equipment.

[0066] Push and reset system

[0067] The push plate 130 works in conjunction with the reciprocating motor 192, which, through the reset rod 193 and reset spring 194, pushes the pressing plate 190 in a reciprocating motion, completing the strong compaction and organization of the file bags. The L-shaped plate 191 on the push plate 130 is connected to the screw rod 133 via a thread, ensuring precise docking and pushing with each movement.

[0068] Overall effect

[0069] After these steps, paper files can be neatly bundled. Multi-point pressure distribution prevents deformation or damage to the files due to excessive friction. The dynamic adjustment of the airbag 240 adapts to the varying conditions of the file bags, ensuring stability and efficiency during the organization process. The device also effectively protects the file bags from heat damage through airflow heat dissipation and the design of the guide groove 210.

[0070] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0071] By installing the elastic valve 280, when there are many file bags stacked and the lower wedge block 200 is subjected to a greater pressure after being inserted between the file bags, after the air pump works, if the pressure of the airbag 240 is too high to achieve the lifting operation, the elastic valve 280 is opened by air pressure at this time, and the gas is discharged through the guide groove 210 to achieve a pressure relief operation, thereby protecting the airbag 240 from being easily damaged. Moreover, after the airbag 240 with lower pressure on the upper side expands, the continued input of gas can also open the elastic valve 280 and be discharged through the guide groove 210, which not only protects the airbag 240 and extends the service life of the airbag 240, but also the gas flowing through the guide groove 210 further reduces the friction between the file bags and takes away the heat generated by friction. When facing some older file bags, it can also achieve the cleaning of their debris.

[0072] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations are readily apparent to those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A paper file binding device, comprising a workbench (100), a binding plate (110), a sorting plate (120), a push plate (130), a baffle (140), a first positioning plate (150) and a second positioning plate (160), wherein the binding plate (110) and the sorting plate (120) are both mounted on the top of the workbench (100), a plurality of rollers (170) are mounted on the top of the binding plate (110) and the sorting plate (120), a placement groove (111) for placing a binding belt is opened in the middle position of the top of the binding plate (110), the baffle (140) is vertically mounted on the top of the workbench (100), and the baffle (140) ) is located on the side of the bundling plate (110) away from the sorting plate (120), the pushing plate (130) is slidably installed on the top of the sorting plate (120), the positioning plate one (150) has two pieces, the two positioning plates one (150) are installed in parallel on the top of the workbench (100), and are located on both sides of the upper part of the bundling plate (110), the positioning plate two (160) has two pieces, the two positioning plates two (160) are respectively installed on the side of the two positioning plates one (150) close to the sorting plate (120), and the two positioning plates two (160) are in an "eight-shaped" shape, and a pressure roller (180) is also installed between the two positioning plates one (150), characterized in that, A pressing plate (190) is slidably mounted on the push plate (130), and a reciprocating component capable of driving the pressing plate (190) to reciprocate is also mounted on the push plate (130), and a plurality of wedge blocks (200) are mounted on a side of the pressing plate (190) away from the reciprocating component, wherein the wedge blocks (200) are triangular in shape, and the inclined angles of the plurality of wedge blocks (200) on the pressing plate (190) gradually increase from top to bottom; A guide groove (210) is provided on the inclined surface of each wedge-shaped block (200), and the guide groove (210) is a V-shaped groove; The wedge block (200) comprises a shell (220) and an inclined plate (230), the guide groove (210) is provided on the inclined plate (230), the shell (220) is hollow inside and has an open top, and the inclined plate (230) is rotatably mounted at the opening of the shell (220); An airbag (240) is installed in the hollow portion of the housing (220), and the airbag (240) contacts the inner wall of the inclined plate (230). An air pump is installed on the push plate (130). An air filling tube (250) is installed in communication with the airbag (240). The air filling tube (250) passes through the side wall of the housing (220) and is connected to the air pump. When the air pump is working, it can drive the airbag (240) to expand and contact the inclined plate (230) to rotate. A through hole (270) is provided on one side of the guide groove (210), and a branch pipe (260) is further installed on the airbag (240), one end of the branch pipe (260) is connected to the airbag (240), and the other end of the branch pipe (260) is connected to the through hole (270), and an elastic valve (280) is installed in the through hole (270).

2. A paper file binding device according to claim 1, characterized in that: The elastic coefficient of the elastic valve (280) is smaller than the elastic coefficient of the airbag (240).

3. A paper file binding device according to claim 1, characterized in that: The outer edge of the elastic valve (280) is provided with guide teeth.

4. A paper file binding device according to claim 1, characterized in that: A driving motor (131) is installed on the side of the finishing plate (120) away from the binding plate (110), a driving groove (132) is opened on the top of the finishing plate (120), a screw rod (133) is rotatably installed in the driving groove (132), the main shaft of the driving motor (131) and the screw rod (133) are fixedly installed, the pushing plate (130) is slidably installed in the driving groove (132), and the pushing plate (130) and the screw rod (133) are connected by threaded engagement; the reciprocating component includes an L-shaped plate (191), a reciprocating motor (192) and a reset rod (193), an L-shaped plate (191) is installed on the push plate (130), a reset rod (193) is installed on the side of the pressing plate (190) facing the L-shaped plate (191), the reset rod (193) passes through the L-shaped plate (191), a reset spring (194) is sleeved on the reset rod (193), the reciprocating motor (192) is installed on the push plate (130), a cam (195) is installed on the main shaft of the reciprocating motor (192), and the cam (195) is in contact with the pressing plate (190).

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