Paper shredding device and paper shredding method

Abstract

The invention provides a paper shredding device, relates to the field of office appliances, and can be applied to file shredding in the field of financial science and technology or file shredding in other fields. The device comprises a shell, a paper feeding channel, a water jet ejector and a driver. The paper feeding channel is arranged on the shell and provided with a paper inlet communicated with the outside and a paper outlet communicated with the interior of the shell. The water jet ejector is movably arranged below the paper outlet and suitable for ejecting cutting water flow towards the paper output from the paper outlet. And the driver is connected with the water jet injector and is suitable for driving the water jet injector to move so as to cut up the paper through the cutting water flow. The invention further provides a paper shredding method.

Description

Technical Field

[0001] The present disclosure relates to the field of office appliances, and in particular to a paper shredding device and a paper shredding method, which can be applied to document shredding in the financial technology field or document shredding in other fields. Background Art

[0002] With the advent of modern office, the value of information is becoming more and more important, and the protection of information is becoming more and more important. In particular, sensitive information or confidential documents sometimes need to be destroyed to protect the information in the documents from being leaked. Most of the existing destruction methods are based on the design of shredders and the type of blades, which break paper documents into small pieces or strips, but the possibility of such fragments being restored may cause the risk of confidential documents being leaked. Summary of the invention

[0003] In view of the above problems, the present disclosure provides a paper shredding device and a paper shredding method.

[0004] According to a first aspect of the present disclosure, there is provided a paper shredding device comprising a shell; a paper feed channel, which is arranged on the shell and is equipped with a paper feed port communicating with the outside and a paper outlet communicating with the inside of the shell; a water jet ejector, which is movably arranged below the paper outlet and is suitable for ejecting a cutting water flow toward the paper output from the paper outlet; and a driver, which is connected to the water jet ejector and is suitable for driving the water jet ejector to move so as to shred the paper by the cutting water flow.

[0005] According to an embodiment of the present disclosure, the water jet ejectors include a plurality of water jet ejectors, each of which is configured to move laterally and / or longitudinally under the drive of a driver to cut paper.

[0006] According to an embodiment of the present disclosure, the method further includes: a controller configured to control the driver to drive the water jet ejector to move along a random path to perform irregular cutting on the paper.

[0007] According to an embodiment of the present disclosure, it also includes: a first sensor, arranged in the paper feed channel, suitable for detecting the position of the paper; the controller is also configured to control the water jet jet to spray cutting water flow in response to the first sensor detecting that the paper has reached a preset position, and control the driver to drive the water jet jet to move.

[0008] According to an embodiment of the present disclosure, it also includes: a second sensor, arranged between the paper feed and the paper outlet, suitable for detecting the thickness and / or hardness of the paper entering the paper feed channel; the controller is also configured to control the injection pressure of the cutting water flow based on the thickness and / or hardness.

[0009] According to an embodiment of the present disclosure, it also includes: a cavity, which is connected to the paper feed channel and is suitable for accommodating a cutting water flow to cut paper; a first pusher, which is arranged at the top of the cavity and is suitable for compressing shredded paper; and a first baffle, which is arranged at the bottom of the cavity to cooperate with the first pusher to compress the shredded paper.

[0010] According to an embodiment of the present disclosure, it also includes: a collection box, which is arranged at the lower part of the first baffle and is connected to the cavity; a second pusher, which is arranged at the upper part of the first baffle and is suitable for pushing the shredded paper into the collection box; and a water collecting trough, which is arranged between the first baffle and the collection box, the first baffle is provided with a plurality of through holes, and the water collecting trough is suitable for collecting water flowing out of the cavity through the through holes.

[0011] According to an embodiment of the present disclosure, it also includes: a water storage tank, which is arranged in the shell and is suitable for supplying water to the water jet injector. The water storage tank is also connected to the water collection tank to recover the water sprayed by the water jet injector.

[0012] A second aspect of the present disclosure provides a paper shredding method, comprising: detecting a paper feed channel; when determining that paper is fed into the paper feed channel and reaches a preset position, controlling a water jet jet to spray a cutting water flow; and controlling a driver to drive the water jet jet to move so as to shred the paper through the cutting water flow.

[0013] According to an embodiment of the present disclosure, the water jet jets include multiple ones; controlling a driver to drive the water jet jets to move so as to shred paper by cutting water streams includes: controlling the driver to drive the multiple water jet jets to move horizontally and / or vertically respectively so as to shred paper by multiple cutting water streams.

[0014] According to an embodiment of the present disclosure, when it is determined that the paper is fed into the paper feed channel and reaches a preset position, the water jet jet is controlled to jet a cutting water flow, including: when it is determined that the paper is fed into the paper feed channel, the hardness and / or thickness of the paper is determined; according to the hardness and / or thickness of the paper, the jet pressure of the water jet jet is determined; and when it is determined that the paper reaches the preset position, the water jet jet is controlled to jet the cutting water flow based on the jet pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above contents and other purposes, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0016] Figure 1 The structure diagram of the paper shredder according to the embodiment of the present disclosure is schematically shown;

[0017] Figure 2 A schematic diagram schematically shows a second sensor detecting paper according to an embodiment of the present disclosure;

[0018] Figure 3 A schematic diagram of the structure of a paper shredder according to another embodiment of the present disclosure is shown;

[0019] Figure 4 The structure diagram of the compression body of the second pusher according to the embodiment of the present disclosure is schematically shown;

[0020] Figure 5 The structure diagram of the second pusher according to the embodiment of the present disclosure is schematically shown;

[0021] Figure 6 A flowchart schematically shows a paper shredding method according to an embodiment of the present disclosure; and

[0022] Figure 7 The flowchart of a paper shredding method according to another embodiment of the present disclosure is schematically shown.

[0023] Reference numerals:

[0024] 10. Shell;

[0025] 11. Paper feeding channel;

[0026] 12. Water jet ejector;

[0027] 13. Driver;

[0028] 14. First sensor;

[0029] 15. Second sensor;

[0030] 16. Controller;

[0031] 17. Cavity;

[0032] 18. First mover;

[0033] 19. First baffle;

[0034] 20. Second pusher;

[0035] 201, first page;

[0036] 202, second side;

[0037] 203. Push the column;

[0038] 21. Water collection tank;

[0039] 22. Collection box;

[0040] 23. Second baffle;

[0041] 24. The third pusher;

[0042] 25. Water storage tank. DETAILED DESCRIPTION

[0043] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0044] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0045] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0046] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0047] In the technical solution of the present disclosure, the user information (including but not limited to user personal information, user image information, user device information, such as location information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved are all information and data authorized by the user or fully authorized by all parties, and the collection, storage, use, processing, transmission, provision, disclosure and application of the relevant data comply with relevant laws, regulations and standards, take necessary confidentiality measures, do not violate public order and good morals, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0048] The inventor found that due to the particularity of the financial industry, a large amount of sensitive user information is involved, including account information, loan applications, identity proof and other privacy information processing. In order to protect user privacy, financial institutions need to safely handle these documents to ensure that the sensitive information therein is not obtained by others. Many documents need to be safely destroyed regularly, and the work of the shredder is particularly important in this process. The current shredders are usually blade shredders. When encountering a large amount of paper and foreign objects, they usually cannot eliminate foreign objects and cause mechanical failures. Secondly, the shredders currently used do not process the shredded paper, resulting in fluffy storage of shredded paper and large space occupation. Due to the limited space of the storage slot, manual cleaning is required, which reduces the work efficiency of the machine and wastes human resources. And it involves major confidential documents. Since the fragments of the shredder have certain regularities and may be restored, there is a risk of confidential documents being leaked. When it comes to repair and maintenance, there may be certain safety hazards in the blade design.

[0049] In view of this, the present disclosure provides a paper shredding device and a paper shredding method, in order to solve at least one of the above problems.

[0050] Figure 1 A schematic diagram of a paper shredder according to an embodiment of the present disclosure is schematically shown.

[0051] According to the paper shredding device provided by the present disclosure, Figure 1 As shown, the invention comprises a housing 10, a paper feed channel 11, a water jet ejector 12 and a driver 13. The paper feed channel 11 is arranged on the housing 10, and is provided with a paper feed port communicating with the outside and a paper outlet communicating with the inside of the housing 10. The water jet ejector 12 is movably arranged below the paper outlet, and is suitable for ejecting a cutting water flow toward the paper output from the paper outlet. The driver 13 is connected to the water jet ejector 12, and is suitable for driving the water jet ejector 12 to move, so as to shred the paper by the cutting water flow.

[0052] In some embodiments, the housing 10 may be in a square, circular or other irregular shapes. The housing 10 may be made of metal (such as stainless steel, aluminum alloy) or high-strength plastic to ensure sufficient strength and durability.

[0053] In some embodiments, Figure 1 As shown, the paper feed port can be set at the top of the housing 10, and can be extended linearly and obliquely toward the inside of the housing 10 to form a paper feed channel 11. The present disclosure is not limited thereto, and the paper feed channel 11 can also be set to a curved type. The paper feed channel 11 can also be set to an adjustable type, and the width or thickness of the paper feed channel 11 can be adjusted to accommodate papers of different sizes and thicknesses.

[0054] In some embodiments, a guide plate may be provided in the paper feed channel 11 to guide the paper into the channel. A roller device may also be provided in the paper feed channel 11 to increase the friction with the paper when feeding the paper to prevent the paper from slipping.

[0055] In some embodiments, the water jet ejector 12 includes a nozzle, a high-pressure water pump and a water delivery pipeline. The nozzle can be set to a circular hole shape, a square shape and a pinhole shape. The high-pressure water pump can provide a high-pressure water flow to the nozzle. The water delivery pipeline is connected to a water source, and water is pumped to the nozzle through the high-pressure water pump to eject the cutting water flow.

[0056] In some embodiments, Figure 1 As shown, a working space for accommodating the water jet ejector 12 can be provided immediately below the paper outlet. The water jet ejector 12 can be placed horizontally, and when the paper is output from the paper outlet, the paper is cut vertically. The present disclosure is not limited thereto, and the water jet ejector 12 can also be tilted at a certain angle, and when the paper is output from the paper outlet, the paper is cut at a certain inclination angle.

[0057] In some embodiments, a guide rail and a slider may be installed on the inner wall of the working space of the water jet ejector 12, and the slider is driven by the driver 13 to drive the water jet ejector 12 to move. The present disclosure is not limited thereto. A mechanical arm connected to the water jet ejector 12 may also be installed in the working space, and the mechanical arm may move horizontally, longitudinally or rotatably, and the driver 13 drives the water jet ejector 12 to move by driving the mechanical arm.

[0058] In some embodiments, the driver 13 may be a driving motor, but the present disclosure is not limited thereto. The driver 13 may also be a driving device such as a hydraulic cylinder or a pneumatic cylinder.

[0059] According to the paper shredding device provided by the present disclosure, a movable water jet jet 12 is used as a cutting tool to jet high-pressure cutting water flow to cut paper. The high pressure and high speed of the cutting water flow can easily penetrate and shred paper of various thicknesses and materials. During the cutting process, the paper is also wetted by the water flow, which reduces the fiber strength of the paper and increases the adhesion of the paper, thereby increasing the difficulty of restoring the paper.

[0060] It should be noted that the paper shredding device disclosed herein is not limited to cutting paper, but can also be used to cut other materials such as cloth, plastic, glass, etc.

[0061] According to an embodiment of the present disclosure, the water jet ejectors 12 include a plurality of water jet ejectors 12 , each of which is configured to move laterally and / or longitudinally under the drive of a driver 13 to cut paper.

[0062] In some embodiments, a plurality of water jet ejectors 12 may be arranged in parallel in the same direction, such as horizontally or vertically, at intervals in the working area, and each water jet ejector 12 is responsible for cutting a portion of the paper. The driver 13 may control each water jet ejector 12 to move in the longitudinal direction or in the longitudinal direction to achieve cutting of the entire paper. The present disclosure is not limited thereto, and a plurality of water jet ejectors 12 may be arranged in a staggered manner to form a grid-like structure. Each water jet ejector 12 may form a cross-cut with other water jet ejectors 12 during movement.

[0063] In some embodiments, the plurality of water jet ejectors 12 can be dynamically adjusted according to the size, thickness and cutting requirements of the paper. For example, when large-sized paper needs to be cut, the number of ejectors involved in the cutting can be increased; and when small-sized paper needs to be cut, the number of ejectors can be reduced to reduce energy consumption.

[0064] In some embodiments, one or more water jet ejectors 12 may also be configured to be rotatable for cutting, thereby achieving multi-angle cutting of the paper.

[0065] According to the embodiment of the present disclosure, multiple water jets 12 can move horizontally and / or vertically under the drive of the driver 13, so that paper can be cut in multiple directions, increasing the complexity of cutting and shredding paper. Multiple water jets 12 can also significantly improve the cutting efficiency by cutting paper in parallel.

[0066] According to an embodiment of the present disclosure, the paper shredder is further provided with a controller 16. The controller 16 is configured to control the driver 13 to drive the water jet ejector 12 to move along a random path to perform irregular cutting on the paper.

[0067] In some embodiments, a random cutting program may be preset in the controller 16, and based on the preset random cutting program, a respective cutting path may be generated for each water jet ejector 12 to randomly cut the area that each is responsible for. For example, when the water jet ejector 12 is cutting, the controller 16 generates a random position parameter as the cutting position of each water jet ejector 12, and cuts the paper vertically and horizontally according to the cutting position of each water jet ejector 12.

[0068] In some embodiments, a plurality of cutting modes may be preset in the controller 16 , each cutting mode may enable the water jet ejector 12 to move in a different path, and the controller 16 may randomly perform cutting in different cutting modes during the cutting process.

[0069] In some embodiments, the controller 16 may support the user to input a custom cutting path through a touch screen or an external device. For example, the user may select a corresponding cutting mode according to the shape, size, and safety requirements of the paper.

[0070] According to the embodiments of the present disclosure, irregular cutting makes paper fragments more difficult to identify and restore, thereby effectively preventing the risk of information leakage.

[0071] According to an embodiment of the present disclosure, the shredder further includes a first sensor 14. The first sensor 14 is disposed in the paper feed passage 11 and is adapted to detect the position of the paper. The controller 16 is further configured to control the water jet ejector 12 to eject cutting water flow in response to the first sensor 14 detecting that the paper has reached a preset position, and to control the driver 13 to drive the water jet ejector 12 to move.

[0072] In some embodiments, the first sensor 14 may be disposed at the paper outlet, but the present disclosure is not limited thereto, and the first sensor 14 may also be disposed at the paper inlet, or between the paper inlet and the paper outlet.

[0073] In some embodiments, the first sensor 14 may be an infrared sensor, but the present disclosure is not limited thereto. The first sensor 14 may also be a photoelectric sensor or a pressure sensor.

[0074] In some embodiments, the first sensor 14 can be directly set at a preset position, such as a paper outlet. When the paper reaches this position, the first sensor 14 immediately detects it and outputs a signal to the controller 16, and the controller 16 controls the water jet ejector 12 to eject the cutting water flow and controls the driver 13 to drive the water jet ejector 12 to move.

[0075] In some embodiments, the first sensor 14 may not be set at the preset position. After detecting the paper, the first sensor 14 transmits a signal to the controller 16. The controller 16 determines the time when the paper reaches the preset position based on the distance between the first sensor 14 and the preset position and the moving speed of the paper. The controller 16 controls the water jet jet 12 to spray cutting water flow and controls the driver 13 to drive the water jet jet 12 to move.

[0076] According to the embodiment of the present disclosure, by setting the first sensor 14 in the paper feeding channel 11, the first sensor 14 can monitor the position of the paper in real time. When the paper reaches the preset position, the water jet ejector 12 is controlled to eject the cutting water flow, ensuring that the cutting water flow starts to be ejected only when the paper reaches the optimal cutting position, thereby improving the accuracy and efficiency of cutting.

[0077] According to an embodiment of the present disclosure, the paper shredder further includes a second sensor 15. The second sensor 15 is disposed between the paper inlet and the paper outlet, and is adapted to detect the thickness and / or hardness of the paper entering the paper inlet passage 11. The controller 16 is further configured to control the jet pressure of the cutting water flow based on the thickness and / or hardness.

[0078] Figure 2The schematic diagram schematically shows the second sensor 15 detecting paper according to the embodiment of the present disclosure.

[0079] The second sensor 15 may be a pressure sensor, such as Figure 2 As shown, the second sensor 15 can be arranged on the sensing probe. When the paper enters the second sensor 15, the probe is pushed to pierce the paper. The thickness and hardness of the paper are determined based on the pressure required when the probe pierces the paper. The controller 16 can analyze the parameters such as the thickness or hardness of the paper to determine the required cutting water jet pressure.

[0080] For example, a piece of A4 copy paper with a thickness of 0.1 mm, which is thinner and less rigid, requires only a lower jet pressure, such as 200-300 bar. A piece of card paper with a thickness of 0.5 mm, which is more rigid and requires more energy to penetrate, can increase the jet pressure to 500-600 bar.

[0081] In some embodiments, the second sensor 15 may also be a capacitive sensor, which may be arranged on both sides of the channel. When the paper enters the second sensor 15, the dielectric constant or the distance between the two plates of the capacitor will change, thereby changing the capacitance value. By measuring the change in capacitance value, the thickness of the paper can be calculated. The second sensor 15 may also be a laser displacement sensor. By irradiating the surface of the paper with a laser beam, the laser displacement sensor can determine the thickness or hardness of the paper by calculating the time or phase difference required for the laser beam to be emitted and received.

[0082] According to the embodiment of the present disclosure, by setting the second sensor 15 to detect the thickness and hardness of the paper, the controller 16 can dynamically adjust the injection pressure of the cutting water flow. For thicker or harder paper, the injection pressure can be increased to ensure thorough shredding; while for thinner or softer paper, the pressure can be reduced to avoid energy waste caused by excessive cutting. Thus, the efficiency and quality of shredding are improved.

[0083] Figure 3 The schematic diagram shows the structure of a paper shredder according to another embodiment of the present disclosure.

[0084] According to the embodiments of the present disclosure, Figure 3 As shown, the paper shredding device further includes a cavity 17, a first pusher 18 and a first baffle 19. The cavity 17 is connected to the paper feed channel 11 and is suitable for accommodating the cutting water flow to cut the paper. The first pusher 18 is arranged at the top of the cavity 17 and is suitable for compressing the shredded paper. The first baffle 19 is arranged at the bottom of the cavity 17 to cooperate with the first pusher 18 to compress the shredded paper.

[0085] In some embodiments, the cavity 17 can be designed to be rectangular, cylindrical or other shapes suitable for accommodating shredded paper. The inner wall of the cavity 17 can be provided with an anti-skid or wear-resistant layer to reduce the sliding and wear of the shredded paper during the compression process.

[0086] In some embodiments, the first pusher 18 includes a telescopic push rod connected to the top of the shell 10 and a compression body connected to the telescopic push rod. The first pusher 18 can move vertically in the cavity 17. The shape and size of the compression body should match the shape of the cavity 17 to ensure uniform compression.

[0087] In some embodiments, the first pusher 18 can be driven by electric, hydraulic or pneumatic means.

[0088] In some embodiments, the movement of the first pusher 18 can be controlled by the controller 16, and the compression process can be automatically started or stopped according to the amount of shredded paper or the degree of compression in the cavity 17. A third sensor can be provided to detect the amount of shredded paper or the degree of compression in the cavity 17, and transmit a signal to the controller 16 to trigger the movement of the pusher.

[0089] According to the embodiment of the present disclosure, paper can be output from the paper outlet to the cavity 17. At this time, the water jet emitter also emits cutting water flow to the cavity 17 to cut the paper into pieces. The cut pieces of paper will fall onto the first baffle 19 at the bottom of the cavity together with the water. When the cutting water flow and the pieces of paper are accumulated in the cavity 17, the first pusher 18 can compress the accumulated pieces of paper to reduce the volume of the pieces of paper.

[0090] According to an embodiment of the present disclosure, the paper shredding device further includes a water storage box 25 , a collection box 22 , a second pusher 20 and a water collection tank 21 .

[0091] According to an embodiment of the present disclosure, a water storage tank 25 is disposed in the housing 10 and is suitable for supplying water to the water jet ejector 12. The water storage tank 25 is also connected to the water collection tank 21 to recover the water ejected by the water jet ejector 12.

[0092] A high-pressure water pump may be provided in the water storage tank 25 , and the water in the water storage tank 25 is pumped toward the water jet ejector 12 by the high-pressure water pump.

[0093] An opening may be provided on the right side of the water collecting tank 21, and the water entering the water collecting tank 21 flows into the water storage tank 25 through the opening, thereby realizing the reuse of water.

[0094] According to an embodiment of the present disclosure, the collection box 22 is disposed at the lower part of the first baffle 19 and is in communication with the cavity 17. The second pusher 20 is disposed at the upper part of the first baffle 19 and is suitable for pushing the shredded paper into the collection box 22. The water collection tank 21 is disposed between the first baffle 19 and the collection box 22. The first baffle 19 is provided with a plurality of through holes. The water collection tank 21 is suitable for collecting water flowing out of the cavity 17 through the through holes.

[0095] In some embodiments, the shredding device may further be provided with a third pusher 24, which is provided on the right side of the second pusher 20, and the third pusher 24 and the second pusher 20 are separated by a second baffle 23. The portion of the second baffle 23 facing the second pusher 20 may be provided as a foldable first movable plate, and the second pusher 20 may push the first movable plate upward to fold when pushing the shredded paper to move to the right, and the first movable plate may be restored to a vertical state after the second pusher 20 withdraws to the left. The first baffle 19 may extend a second movable plate to the right, and the second movable plate may be folded downward under the action of an external force. When the second pusher 20 pushes the shredded paper onto the second movable plate, it may be compressed downward by the third pusher 24, and the second movable plate may be pushed downward to fold, thereby pushing it toward the collection box 22. After the third pusher 24 returns upward, the second movable plate returns to a horizontal position.

[0096] In some embodiments, the third pusher 24 and the second movable plate may not be provided. After the paper is shredded, the paper can be compressed by pushing the first pusher 18 downward, and water flows into the water collection tank 21 through the through hole of the first baffle 19. After the first pusher 18 completes the compression, the second pusher 20 is pushed to the right to perform a second compression on the shredded paper to further reduce the volume. When the second pusher 20 pushes the shredded paper to move to the right, it can push the movable plate to fold upward, thereby pushing the shredded paper to the collection box 22. When the second pusher 20 withdraws to the left, the first movable plate can be restored to a vertical state.

[0097] According to the embodiment of the present disclosure, the shredded paper can be compressed twice by the first pusher 18 and the second pusher 20, which can reduce the volume of the shredded paper, reduce the storage space of the shredded paper, and reduce the number of times the shredder is dumped. At the same time, water flows out from under the first baffle 19 to achieve dry and wet separation.

[0098] In some embodiments, the through hole of the first baffle plate 19 may be disposed at a portion opposite to the cavity 17 . In this case, the second baffle plate 23 may have the same structure as that of the first baffle plate 19 .

[0099] In some embodiments, the through hole of the first baffle 19 can also be arranged below the compression body of the second pusher 20. At this time, the compression body of the second pusher 20 facing the first surface 201 of shredded paper and the second surface 202 facing the first floor can be provided with multiple connected through holes, so that water can flow from the compression body of the second pusher 20 into the water collecting tank 21.

[0100] Figure 4 The structure of the compression body of the second pusher 20 according to the embodiment of the present disclosure is schematically shown.

[0101] like Figure 4 As shown, the first surface 201 and the adjacent second surface 202 of the compression body of the second pusher 20 can be provided with a plurality of through holes connected to each other. The first surface 201 faces the shredded paper, the second surface 202 faces the first baffle 19, and the first baffle 19 below the second surface 202 is provided with a plurality of through holes, thereby forming a flow path for water from the cavity 17 to the water collection tank 21.

[0102] Figure 5 The structure of the second pusher 20 according to the embodiment of the present disclosure is schematically shown.

[0103] like Figure 5 As shown, the second pusher 20 includes a telescopic push rod, a push column 203 and a compression body. The push column 203 includes a baffle connected to the telescopic push rod and a plurality of cylinders connected to the baffle, and the plurality of cylinders are respectively embedded in a plurality of through holes of a third surface of the compression body opposite to the first surface 201. When the first pusher 18 pushes the shredded paper downward, water can flow from the first surface 201 of the compression body to the second surface 202, and then to the water collection tank 21. After the water is filtered and dried, the push column 203 of the second pusher 20 can extend from the third surface to the first surface 201, and then push the shredded paper to move.

[0104] In such an embodiment, it is possible to prevent the through holes on the first baffle 19 from being blocked by paper, thereby ensuring continuous circulation of water.

[0105] In an illustrative embodiment, a fourth sensor may be installed near the paper inlet, and the fourth sensor is used to automatically start or stop the operation of the shredder when a document or paper is placed. The fourth sensor may be an infrared sensor, and the presence or movement of an object may be detected by the infrared sensor. By installing the infrared sensor at or around the paper inlet of the shredder, the shredder will automatically start when a paper enters or approaches the sensor range. By using the fourth sensor, the shredder can be quickly started when needed and automatically stopped after processing is completed, thereby improving the convenience and safety of the shredder.

[0106] Figure 6 The flowchart of the paper shredding method according to the embodiment of the present disclosure is schematically shown.

[0107] The method includes operations S610 to S630.

[0108] In operation S610 , the paper feeding path 11 is detected.

[0109] In operation S620, when it is determined that the paper is fed into the paper feeding passage 11 and reaches a preset position, the water jet ejector 12 is controlled to eject cutting water.

[0110] In operation S630, the driver 13 is controlled to drive the water jet ejector 12 to move so as to shred the paper by the cutting water flow.

[0111] According to the paper shredding method provided by the present invention, a movable water jet jet 12 is used as a cutting tool to cut paper by jetting a high-pressure cutting water stream. The high pressure and high speed of the cutting water stream can easily penetrate and shred paper of various thicknesses and materials. During the cutting process, the paper is also wetted by the water stream, which reduces the fiber strength of the paper and increases the adhesion of the paper, thereby increasing the difficulty of restoring the paper.

[0112] According to an embodiment of the present disclosure, in the Figure 6 The operation S620 shown may also include: when it is determined that the paper is fed into the knife paper feed channel 11, determining the hardness and / or thickness of the paper; determining the injection pressure of the water jet injector 12 according to the hardness and / or thickness of the paper; and when it is determined that the paper has reached a preset position, controlling the water jet injector 12 to inject cutting water based on the injection pressure.

[0113] According to an embodiment of the present disclosure, the paper feeding passage 11 may be detected by detecting the position of the paper through a first sensor 14 provided in the paper feeding passage 11. The hardness and thickness of the paper may be detected through a second sensor 15.

[0114] According to the embodiments of the present disclosure, by real-time monitoring of the position of the paper, it is ensured that the cutting water flow starts to be sprayed only when the paper reaches the optimal cutting position. By detecting the thickness and hardness of the paper, the spray pressure of the cutting water flow is dynamically adjusted, thereby improving the accuracy and efficiency of cutting and allowing energy to be reasonably distributed.

[0115] According to the embodiments of the present disclosure, in the case of Figure 6 The operation S630 shown may include: controlling the driver 13 to drive the plurality of water jet ejectors 12 to move horizontally and / or vertically, respectively, so as to shred the paper through the plurality of cutting water streams.

[0116] According to the embodiment of the present disclosure, multiple water jets 12 can move horizontally and / or vertically under the drive of the driver 13, so that paper can be cut in multiple directions, increasing the complexity of cutting and shredding paper. Multiple water jets 12 can also significantly improve the cutting efficiency by cutting paper in parallel.

[0117] According to an embodiment of the present disclosure, when executing Figure 6 After operation S630, the shredded paper can be compressed by the first pusher 18 and the second pusher 20 to separate the water from the shredded paper, and the water flows into the water collection tank 21 through the through hole of the first baffle 19 and finally flows back to the water storage tank 25. The shredded paper is compressed and pushed into the collection box 22.

[0118] Figure 7 The flowchart of a paper shredding method according to another embodiment of the present disclosure is schematically shown.

[0119] The method includes operations S710 to S750.

[0120] In operation S710, the fourth sensor is used to detect whether there is paper entering. If there is paper entering, the second sensor 15 is used to detect the hardness or thickness of the paper in operation S720. In operation S730, the first sensor 14 is used to detect the position of the paper. When the paper reaches the preset position, based on the hardness or thickness of the paper detected by the second sensor 15, in operation S740, the water jet jet 12 is controlled to spray cutting water flow to control the driver 13 to drive the water jet jet 12 to move and cut the paper. In operation S750, the first pusher 18 and the second pusher 20 are used to compress the shredded paper, and the waste paper is pushed into the collection box 22, and the water flows back to the water storage tank 25. The operation is completed, and operation S710 is repeated.

[0121] It will be appreciated by those skilled in the art that the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations or combinations are not explicitly described in the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0122] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A paper shredding device, characterized in that: include: Housing (10); A paper feed channel (11) is arranged on the housing and is provided with a paper feed port communicating with the outside and a paper outlet communicating with the inside of the housing; A water jet ejector (12) is movably disposed below the paper outlet and is adapted to eject a cutting water stream toward the paper output from the paper outlet; A driver (13) is connected to the water jet ejector (12) and is suitable for driving the water jet ejector (12) to move so as to shred the paper through the cutting water flow.

2. The device according to claim 1, characterized in that The water jet ejectors (12) include a plurality of water jet ejectors (12), each of which is configured to move laterally and / or longitudinally under the drive of the driver (13) to cut the paper.

3. The device according to claim 1 or 2, characterized in that: Also includes: The controller (16) is configured to control the driver (13) to drive the water jet ejector (12) to move along a random path so as to perform irregular cutting on the paper.

4. The device according to claim 3, characterized in that Also includes: A first sensor (14), arranged in the paper feeding channel, adapted to detect the position of the paper; The controller (16) is also configured to control the water jet ejector (12) to eject cutting water flow, and to control the driver (13) to drive the water jet ejector (12) to move, in response to the first sensor (14) detecting that the paper has reached a preset position.

5. The device according to claim 3, characterized in that Also includes: A second sensor (15), arranged between the paper inlet and the paper outlet, adapted to detect the thickness and / or hardness of the paper entering the paper inlet channel (11); The controller (16) is further configured to control the jet pressure of the cutting water stream based on the thickness and / or hardness.

6. The device according to any one of claims 1 to 5, characterized in that: Also includes: A cavity (17) is connected to the paper feed channel (11) and is suitable for accommodating the cutting water flow to cut the paper; A first pusher (18), arranged at the top of the cavity (17), suitable for compressing shredded paper; A first baffle (19) is arranged at the bottom of the cavity (17) to cooperate with the first pusher (18) to compress the shredded paper.

7. The device according to claim 6, characterized in that Also includes: A collection box (22) is disposed at the bottom of the first baffle (19) and is connected to the cavity (17); a second pusher (20), disposed on an upper portion of the first baffle (19), adapted to push the shredded paper into the collection box (22); and A water collecting trough (21) is provided between the first baffle plate (19) and the collecting box (22); the first baffle plate (19) is provided with a plurality of through holes; the water collecting trough (21) is suitable for collecting water flowing out of the cavity (17) through the through holes.

8. The device according to claim 7, characterized in that Also includes: A water storage tank (20) is disposed in the housing and is suitable for supplying water to the water jet injector (12). The water storage tank (20) is also connected to the water collecting tank (21) to recover water ejected by the water jet injector (12).

9. A paper shredding method, characterized in that: include: Detect the paper feeding channel; When it is determined that the paper is fed into the paper feeding channel (11) and reaches a preset position, controlling the water jet ejector (12) to eject cutting water flow; as well as A control driver (13) drives the water jet ejector (12) to move so as to cut the paper into pieces by the cutting water flow.

10. The method according to claim 9, characterized in that The water jet ejector (12) comprises a plurality of; The control driver (13) drives the water jet ejector (12) to move so as to shred the paper through the cutting water flow, comprising: The driver (13) is controlled to drive the plurality of water jet ejectors (12) to move horizontally and / or vertically, so as to shred the paper through the plurality of cutting water streams.

11. The method according to claim 9, wherein: When it is determined that the paper is fed into the paper feeding channel (11) and reaches a preset position, the water jet ejector (12) is controlled to eject a cutting water flow, including: In the case where it is determined that the paper is fed into the paper feed channel, determining the hardness and / or thickness of the paper; Determining the jet pressure of the water jet according to the hardness and / or thickness of the paper; and When it is determined that the paper has reached a preset position, the water jet ejector (12) is controlled to eject a cutting water flow based on the ejection pressure.

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