A secure destruction device and method for business billing

Abstract

The application discloses a kind of safe destruction device and method for business bill, it is related to bill destruction technical field.The present application includes including shell, shell is equipped with put-in groove, put-in groove is rotatably installed top cover, the rear end of shell is fixedly installed plasma generator and air pump, fixedly installed with upper conveying plate and lower conveying plate in shell, it is equipped with turning groove in shell, rotatably installed with printing roller and conveying roller on upper conveying plate and lower conveying plate, fixedly installed with fixed gas box in shell, fixedly installed with air bag in fixed gas box, slidingly installed with push-pull block on fixed gas box, fixedly installed with longitudinal cutting block between two push-pull blocks, fixedly installed with longitudinal blade on longitudinal cutting block, fixedly installed fixed pipe column in shell, rotatably installed and communicate rotating air pipe on fixed pipe column, fixedly installed arc-shaped tab on rotating air pipe, rotating air pipe is equipped with arc-shaped tab, can avoid to have heart person according to these texts or table lines and carry out patching restoration, guarantee the security of bill destruction.

Description

Technical Field

[0001] This invention belongs to the field of bill destruction technology, specifically, it relates to a secure destruction device and method for business bills. Background Technology

[0002] Financial business accounting is a major component of my country's accounting system. It involves the accurate, complete, continuous, and comprehensive accounting and supervision of the business operations and management activities of financial business institutions, using currency as the unit of measurement, in accordance with the basic principles, rules, and methods of accounting. It also involves the measurement, processing, and transmission of financial information of financial business institutions, which helps users of information make reasonable and effective decisions in business management and other economic activities. To prevent the leakage of financial statement information, discarded statements generally need to be disposed of to avoid information leakage and losses to the enterprise.

[0003] Existing bill destruction devices typically shred bills into rectangular pieces. However, bills often contain various tables or similar lines and patterns. Even after being shredded into rectangular pieces, these lines and patterns remain, making it easy to piece them together. If there are text or markings, this process becomes even easier, leading to financial losses for businesses and reducing the security of business bill destruction. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a secure destruction device and method for business invoices that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: a secure destruction device and method for business invoices, including a housing, a slot on the housing, a top cover rotatably mounted on the slot, a plasma generator and an air pump fixedly mounted at the rear end of the housing, and the input end of the plasma generator being connected to the output end of the air pump; An upper conveyor plate and a lower conveyor plate are fixedly installed inside the housing. The housing is provided with a turning groove that matches the position of the upper conveyor plate and the lower conveyor plate. A printing roller is rotatably installed at the rightmost end of the upper conveyor plate and the lower conveyor plate. Multiple conveyor rollers are evenly rotatably installed on the upper conveyor plate and the lower conveyor plate. Two fixed air boxes are fixedly installed inside the housing. An air bag is fixedly installed inside the fixed air box. A push-pull block is slidably installed on the fixed air box. The air bag is fixedly connected to the push-pull block. A longitudinal cutting block is fixedly installed between the two push-pull blocks. Multiple longitudinal blades are fixedly installed on the longitudinal cutting block. The longitudinal cutting block is slidably connected to the upper conveyor plate and the lower conveyor plate. The airbag's input end is fixedly installed and connected to an air inlet pipe, the air inlet pipe is fixedly connected and connected to the output end of the plasma generator, the airbag's output end is fixedly installed and connected to an air outlet pipe, and a solenoid valve is installed in both air inlet pipes. A fixed tube column is fixedly installed inside the housing. The fixed tube column is connected to the air outlet pipe. A rotating air pipe is rotatably installed and connected to the fixed tube column. Multiple arc-shaped paddles are fixedly installed on the rotating air pipe. The rotating air pipe is provided with multiple arc-shaped paddles.

[0006] To facilitate the collection and processing of debris, preferably, a debris drawer that is slidably installed inside the housing to match the position of the lower conveyor plate.

[0007] In order to limit the sliding of the longitudinal block, preferably, the top and bottom surfaces of the longitudinal block are fixedly installed with limit sliders, and the upper conveyor plate and the lower conveyor plate are provided with limit grooves that match the shape of the limit sliders.

[0008] For transverse cutting, preferably, an arc-shaped sliding column is slidably installed on the fixed column, a reciprocating slider is fixedly installed on the arc-shaped sliding column, a telescopic column is rotatably installed on the reciprocating slider, a telescopic motor is fixedly installed at the bottom end of the telescopic column, a transverse blade is fixedly installed at the output end of the telescopic motor, and a transverse cutting groove matching the size of the transverse blade is provided on the lower conveyor plate.

[0009] To prevent the bill from bending during horizontal cutting, an upper pressure plate is fixedly installed at the output end of the telescopic motor, a pressure spring is fixedly installed on the bottom surface of the upper pressure plate, and a lower pressure plate is fixedly installed at the bottom end of the pressure spring.

[0010] To further control the sliding of the reciprocating slider, a sliding piston is slidably installed inside the fixed column. The sliding piston is fixedly connected to the arc-shaped sliding column. A fixed ring frame is fixedly installed inside the rotating air pipe. A return spring is fixedly installed on the fixed ring frame. A rotating plate is fixedly installed at the other end of the return spring. The rotating plate is rotatably connected to the sliding piston.

[0011] To control the rotation of the conveying roller and the printing roller, preferably, a first chain is installed in the upper conveying plate and a second chain is installed in the lower conveying plate. Multiple first gears that match the positions of the conveying roller and the printing roller are rotatably installed in the upper and lower conveying plates. Each conveying roller and the printing roller is fixedly connected to one of the first gears. The first gear in the upper conveying plate meshes with the first chain, and the first gear in the lower conveying plate meshes with the second chain.

[0012] To make the conveying rollers and printing rollers on the upper and lower conveying plates rotate in opposite directions, a rotating motor is fixedly installed on the side of the housing. A second gear and a third gear are rotatably installed inside the housing. The second gear meshes with the third gear. The second gear is fixedly connected to the drive end of the rotating motor. The second gear is fixedly connected to one of the first gears in the upper conveying plate. The third gear is fixedly connected to one of the first gears in the lower conveying plate.

[0013] To ensure the bill is properly secured, preferably, an upper pressure block is slidably mounted on the bottom surface of the top cover, and an upper pressure spring is fixedly mounted inside the top cover, with the other end of the upper pressure spring fixedly connected to the upper pressure block.

[0014] A method for securely destroying business invoices, the method being based on the aforementioned secure destruction device for business invoices, the method comprising: Step 1: Rotate to open the top cover, neatly place the bills that need to be safely destroyed into the placement slot, place the bills on the upper conveyor plate, and close the top cover; Step 2: Start the air pump and plasma generator. The air pump delivers dry gas from the outside to the plasma generator, which generates a negatively charged plasma gas flow based on the dry gas. Step 3: The plasma gas flow is blown into the airbag through the air inlet pipe, causing the airbag to expand in the fixed air box and push the longitudinal block to slide. The solenoid valves in the two air inlet pipes open and close at a preset frequency. Step 4: When the plasma gas flow accumulates to a certain amount in the airbag, air outlet tube, and fixed column, the air pressure pushes the sliding piston, delivering the plasma gas flow from the fixed column to the rotating air tube. The plasma gas flow then exits from the air inlet to the concave surface of the arc-shaped lever, thereby driving the rotating air tube to rotate. Step 5: The rotating air tube and the arc-shaped paddle move the bills on the upper conveyor plate from bottom to top. During the movement, the plasma airflow blows into the gaps of each bill, so that each bill carries the same charge. Step 6: During the sliding process of the sliding piston, the arc-shaped sliding column is driven to slide, which in turn drives the reciprocating slider to slide, causing the telescopic column between the two reciprocating sliders to rotate, slide and extend. The telescopic motor and the horizontal blade below the telescopic column also rotate and slide. Step 7: Start the rotating motor. The first gear is driven to rotate through the second gear, the third gear, the first chain, and the second chain. The conveyor roller on the upper conveyor plate conveys the bottom bill to the turning groove. When the bill passes through the turning groove and is conveyed to the lower conveyor plate, it is printed on both sides by two printing rollers to print and cover the text, numbers, patterns, tables, or stamps on the bill. Step 8: The conveyor rollers on the lower conveyor plate transport the printed bill to the reciprocating sliding block. As the bill passes through the sliding block, it is longitudinally cut by the longitudinal blades, and the bill is longitudinally cut into multiple curved strips by the longitudinal blades. Step 9: The bill strip is conveyed by the conveyor roller to the horizontal blade and the horizontal cutting groove. The telescopic motor extends and retracts every preset cycle. When the telescopic motor extends, the horizontal blade cuts the bill strip below horizontally, cutting the bill strip into fragments. The fragments are conveyed to the fragment drawer by the conveyor roller.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention provides a secure destruction device and method for business invoices, which delivers plasma airflow through an air pump and a plasma generator, controls the sliding of the longitudinally cut block by the expansion of the airbag, and drives the rotating air pipe to rotate when the plasma airflow is blown out from the air hole, so that the arc-shaped paddle moves the invoice. At the same time as the paddle moves, the plasma airflow blows into the gaps of each invoice, avoiding the impact of electrostatic adsorption between invoices on subsequent printing. Each invoice is printed on both sides by two printing rollers in the turning groove, and the text, numbers, patterns, tables or stamps on the invoice are printed and covered, preventing malicious people from piecing together and restoring the invoice based on the lines of these texts or tables. The bill is longitudinally cut by a reciprocating sliding longitudinal cutting block, so that the edge of each cut bill strip is a curved line. Then, the bill is transversely cut by a sliding and rotating transverse blade. Each transverse cut is performed at a slightly different angle between the telescopic motor and the conveyor roller. In the end, the four edges of each bill fragment are different, making them difficult to piece together and ensuring the safety of bill destruction.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a side view cross-sectional structural schematic diagram of the present invention; Figure 4 This is the present invention. Figure 3 A schematic diagram of the structure of A in the middle; Figure 5 This is the present invention. Figure 3 A schematic diagram of the structure of B in the middle; Figure 6 This is a schematic diagram of the internal structure of the hidden housing of the present invention; Figure 7 This is a schematic diagram of the internally concealed conveyor plate and conveyor roller structure of the present invention; Figure 8 This is a schematic diagram of the fixed air box and longitudinal block structure of the present invention; Figure 9 This is a schematic diagram of the longitudinal block structure of the present invention; Figure 10 This is a schematic diagram of the rotating air tube structure of the present invention; Figure 11 This is a schematic diagram of the airflow rotation tube of the present invention; Figure 12 This is a schematic diagram of the sliding piston structure of the present invention; Figure 13 This is a schematic diagram of the reciprocating slider drive structure of the present invention; Figure 14 This is a schematic diagram of the transverse blade drive structure of the present invention; Figure 15 This is a schematic diagram of the internal structure of the top cover of the present invention; Figure 16 This is a schematic diagram of the gear assembly structure of the present invention; Figure 17 This is a schematic diagram of the chain and gear drive structure of the present invention.

[0018] In the diagram: 1. Housing; 101. Insertion slot; 102. Upper conveyor plate; 103. Lower conveyor plate; 104. Turning slot; 105. Transverse slot; 2. Top cover; 201. Upper pressure block; 202. Upper pressure spring; 3. Rotating motor; 4. Plasma generator; 5. Air pump; 6. Debris drawer; 7. Rotating air pipe; 701. Arc-shaped lever; 702. Air blowing hole; 8. Conveying roller; 9. Printing roller; 10. Fixed column; 11. Fixed air box; 111. Airbag; 112. Air inlet pipe; 113. Air outlet pipe ; 114. Push-pull block; 12. Longitudinal cutting block; 121. Longitudinal blade; 122. Limiting slider; 13. Sliding piston; 131. Arc-shaped sliding column; 132. Rotating plate; 133. Fixed ring frame; 134. Return spring; 14. Reciprocating slider; 15. Telescopic column; 16. Telescopic motor; 161. Upper pressure plate; 162. Pressure spring; 163. Lower pressure plate; 17. Transverse blade; 18. First chain; 19. Second chain; 20. First gear; 21. Second gear; 22. Third gear. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] Example: Referring to the accompanying drawings, a secure destruction device for business invoices, such as... Figure 1As shown, it includes a housing 1, a slot 101 on the housing 1, a top cover 2 rotatably mounted on the slot 101, a plasma generator 4 and an air pump 5 fixedly mounted at the rear end of the housing 1, and the input end of the plasma generator 4 is connected to the output end of the air pump 5.

[0021] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, an upper conveyor plate 102 and a lower conveyor plate 103 are fixedly installed inside the housing 1. A turning groove 104 is provided inside the housing 1 to match the positions of the upper conveyor plate 102 and the lower conveyor plate 103. A printing roller 9 is rotatably installed at the rightmost end of the upper conveyor plate 102 and the lower conveyor plate 103. Multiple conveyor rollers 8 are evenly rotatably installed on the upper conveyor plate 102 and the lower conveyor plate 103. When the bill is conveyed to the turning groove 104 by the conveyor roller 8 on the upper conveyor plate 102, it turns in the turning groove 104. At the same time, the two printing rollers 9 print on the upper and lower sides of the bill. The printing pattern on the printing roller 9 is an irregular pattern, which covers the original text, numbers, tables or stamps on the bill.

[0022] A scrap drawer 6 is slidably installed inside the housing 1, matching the position of the lower conveyor plate 103. When paper scraps are conveyed to the edge of the lower conveyor plate 103, they fall into the scrap drawer 6, facilitating the collection and subsequent processing of the scraps.

[0023] like Figure 2 , Figure 6 and Figure 8 As shown, two fixed air boxes 11 are fixedly installed inside the housing 1. An airbag 111 is fixedly installed inside each fixed air box 11. A push-pull block 114, L-shaped, is slidably installed on the fixed air box 11. The airbag 111 is fixedly connected to the push-pull block 114. A longitudinal cutting block 12 is fixedly installed between the two push-pull blocks 114. Multiple longitudinal blades 121 are fixedly installed on the longitudinal cutting block 12. The longitudinal cutting block 12 is slidably connected to the upper conveyor plate 102 and the lower conveyor plate 103. Figure 9 As shown, the cutting edge of the longitudinal blade 121 is V-shaped. When the bill comes into contact with the longitudinal blade 121, it may slide along the cutting edge of the longitudinal blade 121 due to the resistance of the longitudinal blade 121, making it difficult for the longitudinal blade 121 to cut the bill longitudinally. The V-shaped cutting edge prevents the bill from sliding any further when it reaches the lowest point of the V-shape, allowing the longitudinal blade 121 to cut the bill smoothly.

[0024] The top and bottom surfaces of the longitudinal cutting block 12 are fixedly installed with limit sliders 122. The upper conveyor plate 102 and the lower conveyor plate 103 are provided with limit grooves that match the shape of the limit sliders 122. Through the limit sliders 122 and the limit grooves, the longitudinal cutting block 12 will not deviate when sliding back and forth, thus ensuring the longitudinal cutting effect of the longitudinal blade 121.

[0025] Both air inlets 112 are equipped with solenoid valves. The two solenoid valves do not open or close synchronously. When one solenoid valve is open, the other solenoid valve is closed, so that when one airbag 111 is inflated, no gas flows into the other airbag 111. The inflated airbag 111 pushes the push-pull block 114 connected to it, causing the longitudinal block 12 to slide to the other side. The longitudinal block 12 pushes the other push-pull block 114 from the other side, causing the uninflated airbag 111 to be compressed. The plasma gas remaining inside flows through the air outlet 113 to the fixed column 10 and the rotating air tube 7. When the inflated airbag 111 is inflated to its limit, the plasma gas will flow to the other fixed column 10 and the rotating air tube 7.

[0026] The input end of the airbag 111 is fixedly installed and connected to the air inlet pipe 112. The air inlet pipe 112 is fixedly connected to the output end of the plasma generator 4. The output end of the airbag 111 is fixedly installed and connected to the air outlet pipe 113.

[0027] like Figure 7 and Figure 10 As shown, a fixed tube column 10 is fixedly installed inside the housing 1. The fixed tube column 10 is connected to the air outlet pipe 113. A rotating air pipe 7 is rotatably installed and connected to the fixed tube column 10. Multiple arc-shaped paddles 701 are fixedly installed on the rotating air pipe 7. The nozzle of the air blowing hole 702 faces the arc-shaped concave surface of the arc-shaped paddle 701. Figure 11 As shown, the airflow from the air outlet 702 is blown out along the concave end of the arc-shaped lever 701, thereby driving the rotating air tube 7 to rotate. When the rotating air tube 7 rotates, the arc-shaped lever 701 contacts the bills through the arc-shaped convex surface, causing the arc-shaped lever 701 to move the bills on the upper conveyor plate 102 from small to large. Each time a bill is moved, the airflow blows into the gap between each bill, so that each bill is in full contact with the plasma airflow. For example, the two bills above and below originally generated static electricity due to friction, carrying positive and negative charges respectively, causing the two bills to adhere together. However, the plasma airflow is a negative ion airflow, which first neutralizes the positively charged bills, and then makes them carry negative charges. The two bills carrying negative charges will no longer adhere together, and will also generate a slight repulsive force due to the repulsion of like charges.

[0028] like Figure 12 and Figure 13As shown, an arc-shaped sliding column 131 is slidably mounted on the fixed column 10. A reciprocating slider 14 is fixedly mounted on the arc-shaped sliding column 131. A telescopic column 15 is rotatably mounted on the reciprocating slider 14. A telescopic motor 16 is fixedly mounted at the bottom end of the telescopic column 15. A transverse blade 17 is fixedly mounted at the output end of the telescopic motor 16. Figure 5 As shown, the lower conveyor plate 103 is provided with a transverse cutting groove 105 that matches the size of the transverse blade 17. The transverse blade 17 performs secondary cutting, the longitudinal blade 121 performs longitudinal cutting to cut the bill into strips, and the transverse blade 17 performs transverse cutting to cut the bill strips into bill scraps.

[0029] like Figure 5 and Figure 14 As shown, an upper pressing plate 161 is fixedly installed at the output end of the telescopic motor 16. A compression spring 162 is fixedly installed on the bottom surface of the upper pressing plate 161. A lower pressing plate 163 is fixedly installed at the bottom end of the compression spring 162. The bottom surface of the lower pressing plate 163 is lower than the lowest point of the transverse blade 17. When the telescopic motor 16 is started and the transverse blade 17 moves down, before the transverse blade 17 contacts the bill and extends into the transverse cutting groove 105, the lower pressing plate 163 will first abut against the surfaces of the lower conveying plate 103 in front of and behind the transverse cutting groove 105. Then the lower pressing plate 163 is compressed to press the bill paper strip in the transverse cutting groove 105 area. At this time, when the transverse blade 17 contacts the bill paper strip, it will not cause the bill paper strip to bend and be difficult to cut.

[0030] like Figure 12 and Figure 13As shown, a sliding piston 13 is slidably installed inside the fixed column 10. The sliding piston 13 is fixedly connected to the arc-shaped sliding column 131. A fixed ring frame 133 is fixedly installed inside the rotating air tube 7. A return spring 134 is fixedly installed on the fixed ring frame 133. A rotating plate 132 is fixedly installed at the other end of the return spring 134. The rotating plate 132 is rotatably connected to the sliding piston 13. In the initial state, under the elastic force of the return spring 134, the sliding piston 13 blocks the air outlet of the fixed column 10. When the air inlet pipe 112 injects air into the airbag 111, the gas in the airbag 111, the air outlet pipe 113, and the fixed column 10 will gradually increase. When the airbag 111 reaches its limit, the air pressure... Under the action, the air pressure thrust of the sliding piston 13 is greater than the elastic force of the return spring 134 on the other side, causing the sliding piston 13 to slide. Gas flows from the air outlet of the fixed column 10 into the rotating air pipe 7, and then blows out from the air blowing hole 702, driving the rotating air pipe 7 to rotate. During the sliding process, the sliding piston 13 drives the arc-shaped sliding column 131 and the reciprocating slider 14 to slide, so that the telescopic column 15 is slid, rotated and extended by the two reciprocating sliders 14. This causes the telescopic motor 16 and the transverse blade 17 to slide and rotate together. When the transverse blade 17 makes a transverse cut on the bill paper strip below, the angle will be slightly different, and the edge line of each transverse cut is not parallel to the edge line of other transverse cuts.

[0031] like Figure 13 and Figure 14 As shown, the horizontal blade 17 is an irregularly bent type, not a straight cutting blade. The horizontal cut is also an irregular line. Combined with the vertical cut, this makes the four edges of each bill fragment irregular lines, making it difficult to piece them together.

[0032] like Figure 16 and Figure 17 As shown, a first chain 18 is installed in the upper conveyor plate 102, and a second chain 19 is installed in the lower conveyor plate 103. Multiple first gears 20, which match the positions of the conveyor rollers 8 and the printing rollers 9, are rotatably installed in the upper conveyor plate 102 and the lower conveyor plate 103. Each conveyor roller 8 and the printing roller 9 is fixedly connected to one first gear 20. The first gear 20 in the upper conveyor plate 102 meshes with the first chain 18, and the first gear 20 in the lower conveyor plate 103 meshes with the second chain 19.

[0033] like Figure 1As shown, a rotary motor 3 is fixedly installed on the side of the housing 1. A second gear 21 and a third gear 22 are rotatably installed inside the housing 1. The second gear 21 meshes with the third gear 22. The second gear 21 is fixedly connected to the drive end of the rotary motor 3. The second gear 21 is fixedly connected to a first gear 20 in the upper conveyor plate 102, and the third gear 22 is fixedly connected to a first gear 20 in the lower conveyor plate 103. The rotary motor 3 drives the second gear 21 to rotate, causing the second gear 21 and the third gear 22 to rotate in opposite directions. The second gear 21 drives the first gear 20 on the upper conveyor plate 102. The first chain 18 rotates clockwise, causing the other first gears 20 on the upper conveyor plate 102 to also rotate clockwise. This allows the bills on the upper conveyor plate 102 to be moved to the deflector groove 104 by the conveyor roller 8 and the printing roller 9, and then conveyed to the lower conveyor plate 103. The third gear 22 drives one of the first gears 20 on the lower conveyor plate 103 to rotate counterclockwise. This, along with the second chain 19, drives the other first gears 20 on the lower conveyor plate 103 to also rotate counterclockwise. This causes the bills on the lower conveyor plate 103 to pass through the longitudinal blade 121 and the transverse blade 17 during the conveying process, completing the longitudinal cutting and transverse cutting in sequence.

[0034] like Figure 15 As shown, an upper pressure block 201 is slidably installed on the bottom surface of the top cover 2, and an upper pressure spring 202 is fixedly installed inside the top cover 2. The other end of the upper pressure spring 202 is fixedly connected to the upper pressure block 201. When the arc-shaped paddle 701 moves the bill from the bottom net from both sides, the upper pressure block 201 presses the middle part of the bill to prevent the bill paper from separating. When the number of bill papers decreases, the upper pressure block 201 will gradually move down and continue to press down by its own weight.

[0035] Each air inlet 702 is equipped with a pressure relief valve. Whenever the sliding piston 13 slides, the air pressure in the airbag 111, the air outlet 113 and the fixed column 10 is partially released. If there is no pressure relief valve, the air inlet 702 closest to the air outlet of the fixed column 10 will blow out the most plasma gas, and the air inlet 702 furthest from the air outlet of the fixed column 10 may not even blow out plasma gas. When the plasma gas accumulates in the rotating air pipe 7, when the air pressure in the rotating air pipe 7 reaches a certain value, the pressure relief valve opens and blows out from each arc-shaped paddle 701, ensuring that the plasma gas flow is evenly blown on the bill.

[0036] Rotate to open the top cover 2, neatly place the bills to be safely destroyed into the placement slot 101, place the bills on the upper conveyor plate 102, close the top cover 2, and start the air pump 5 and plasma generator 4. The air pump 5 delivers dry gas from the outside to the plasma generator 4. The plasma generator 4 generates a negatively charged plasma flow based on the dry gas. The plasma flow is blown into the airbag 111 through the air inlet pipe 112, causing the airbag 111 to inflate within the fixed air box 11. The inflated airbag 111 pushes the longitudinal slicing block 12 to slide via the push-pull block 114. The solenoid valves in the two air inlet pipes 112 open and close at a preset frequency. When one is open, the other is closed, causing the two airbags 111 to inflate at a preset frequency. When one airbag 111 inflates, it pushes the connected push-pull block 114, the longitudinal slicing block 12, and another push-pull block 114 to compress the other airbag 111. When the plasma gas flow in the exhaust pipe 113 and the fixed column 10 accumulates to a certain amount, the air pressure pushes the sliding piston 13, which delivers the plasma gas flow from the fixed column 10 to the rotating air pipe 7. The plasma gas flow is then blown out from the air blowing hole 702 to the arc-shaped concave surface of the arc-shaped lever 701, thereby driving the rotating air pipe 7 to rotate. The rotating air pipe 7 and the arc-shaped lever 701 move the bills on the upper conveyor plate 102 from bottom to top. During the moving process, the plasma gas flow is blown into the gaps of each bill, so that each bill carries the same charge and will not attract each other due to opposite charges. As the sliding piston 13 is pushed and slid, it will drive the arc-shaped sliding column 131 to slide, which will drive the reciprocating slider 14 to slide, causing the telescopic column 15 between the two reciprocating sliders 14 to rotate, slide and extend, and causing the telescopic motor 16 and the horizontal blade 17 below the telescopic column 15 to also rotate and slide.

[0037] The rotating motor 3 is started, which drives the first gear 20 to rotate via the second gear 21, the third gear 22, the first chain 18, and the second chain 19. The conveying rollers 8 on the upper conveyor plate 102 and the lower conveyor plate 103 rotate in opposite directions. The conveying rollers 8 on the upper conveyor plate 102 transport the bottom bill to the turning groove 104. The turning groove 104 has a small opening, which can only accommodate a small amount of paper. Since each bill carries the same charge, the upper bills are not transported to the turning groove 104 along with the bills. When the bills pass through the turning groove 104 and are transported to the lower conveyor plate 103, they are printed on both sides by two printing rollers 9, covering the text, numbers, patterns, tables, or stamps on the bills. The upper conveying rollers 8 on the lower conveyor plate 103 then transport the printed bills to the front and back of the lower conveyor plate 103. At the reciprocating sliding longitudinal cutting block 12, the bill is longitudinally cut by the longitudinal blade 121 as it passes through the longitudinal cutting block 12. During the longitudinal cutting process, the longitudinal cutting block 12 will continue to slide back and forth, so the cut on the bill will also be irregularly curved. The bill is longitudinally cut into multiple curved strips by the longitudinal blade 121. The bill strips are still conveyed by the conveying roller 8 to the transverse blade 17 and transverse cutting groove 105. At this time, the telescopic motor 16 and the transverse blade 17 rotate and slide with the two reciprocating sliding sliders 14. The telescopic motor 16 extends and retracts every preset cycle. When the telescopic motor 16 extends, the transverse blade 17 transversely cuts the bill strip below, cutting the bill strip into fragments. The edges of each fragment are not parallel to each other. The fragments are conveyed to the fragment drawer 6 by the conveying roller 8.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any equivalent substitutions or modifications made by those skilled in the art without departing from the scope of the present invention's technical solution and inventive concept should be covered within the protection scope of the present invention.

Claims

1. A secure destruction device for business invoices, characterized in that, Includes a housing (1), on which a slot (101) is provided, and a top cover (2) is rotatably mounted on the slot (101). A plasma generator (4) and an air pump (5) are fixedly mounted on the rear end of the housing (1), and the input end of the plasma generator (4) is connected to the output end of the air pump (5). An upper conveyor plate (102) and a lower conveyor plate (103) are fixedly installed inside the housing (1). A turning groove (104) matching the position of the upper conveyor plate (102) and the lower conveyor plate (103) is provided inside the housing (1). A printing roller (9) is rotatably installed on the side end of the upper conveyor plate (102) and the lower conveyor plate (103). Multiple conveying rollers (8) are evenly rotatably installed on the upper conveyor plate (102) and the lower conveyor plate (103). Two fixed air boxes (11) are fixedly installed inside the housing (1). An air bag (111) is fixedly installed inside the fixed air box (11). A push-pull block (114) is slidably installed on the fixed air box (11). The air bag (111) is fixedly connected to the push-pull block (114). A longitudinal cutting block (12) is fixedly installed between the two push-pull blocks (114). A plurality of longitudinal blades (121) are fixedly installed on the longitudinal cutting block (12). The longitudinal cutting block (12) is slidably connected to the upper conveyor plate (102) and the lower conveyor plate (103). The airbag (111) has an input end fixedly installed and connected to an air inlet pipe (112), the air inlet pipe (112) is fixedly connected and connected to the output end of the plasma generator (4), the output end of the airbag (111) is fixedly installed and connected to an air outlet pipe (113), and both air inlets (112) are equipped with solenoid valves. A fixed column (10) is fixedly installed inside the housing (1). The fixed column (10) is connected to the air outlet pipe (113). A rotating air pipe (7) is rotatably installed and connected to the fixed column (10). Multiple arc-shaped paddles (701) are fixedly installed on the rotating air pipe (7). Multiple arc-shaped paddles (701) are provided on the rotating air pipe (7).

2. The secure destruction device for business invoices according to claim 1, characterized in that, A debris drawer (6) that matches the position of the lower conveyor plate (103) is slidably installed inside the housing (1).

3. The secure destruction device for business invoices according to claim 1, characterized in that, The top and bottom surfaces of the longitudinal block (12) are fixedly installed with limit sliders (122), and the upper conveying plate (102) and the lower conveying plate (103) are provided with limit grooves that match the shape of the limit sliders (122).

4. The secure destruction device for business invoices according to claim 2, characterized in that, An arc-shaped sliding column (131) is slidably installed on the fixed column (10). A reciprocating slider (14) is fixedly installed on the arc-shaped sliding column (131). A telescopic column (15) is rotatably installed on the reciprocating slider (14). A telescopic motor (16) is fixedly installed at the bottom end of the telescopic column (15). A transverse blade (17) is fixedly installed at the output end of the telescopic motor (16). A transverse groove (105) matching the size of the transverse blade (17) is provided on the lower conveyor plate (103).

5. A secure destruction device for business invoices according to claim 4, characterized in that, The output end of the telescopic motor (16) is fixedly installed with an upper pressure plate (161), and a pressure spring (162) is fixedly installed on the bottom surface of the upper pressure plate (161). The bottom end of the pressure spring (162) is fixedly installed with a lower pressure plate (163).

6. A secure destruction device for business invoices according to claim 5, characterized in that, A sliding piston (13) is slidably installed inside the fixed tube column (10). The sliding piston (13) is fixedly connected to the arc-shaped sliding column (131). A fixed ring frame (133) is fixedly installed inside the rotating air tube (7). A return spring (134) is fixedly installed on the fixed ring frame (133). A rotating plate (132) is fixedly installed at the other end of the return spring (134). The rotating plate (132) is rotatably connected to the sliding piston (13).

7. A secure destruction device for business invoices according to claim 6, characterized in that, A first chain (18) is installed in the upper conveyor plate (102), and a second chain (19) is installed in the lower conveyor plate (103). Multiple first gears (20) that match the positions of the conveying roller (8) and the printing roller (9) are rotatably installed in the upper conveyor plate (102) and the lower conveyor plate (103). Each conveying roller (8) and the printing roller (9) is fixedly connected to one of the first gears (20). The first gear (20) in the upper conveyor plate (102) meshes with the first chain (18), and the first gear (20) in the lower conveyor plate (103) meshes with the second chain (19).

8. A secure destruction device for business invoices according to claim 7, characterized in that, A rotating motor (3) is fixedly installed on the side end of the housing (1). A second gear (21) and a third gear (22) are rotatably installed inside the housing (1). The second gear (21) meshes with the third gear (22). The second gear (21) is fixedly connected to the drive end of the rotating motor (3). The second gear (21) is fixedly connected to one of the first gears (20) in the upper conveyor plate (102). The third gear (22) is fixedly connected to one of the first gears (20) in the lower conveyor plate (103).

9. A secure destruction device for business invoices according to claim 1, characterized in that, An upper pressure block (201) is slidably installed on the bottom surface of the top cover (2), and an upper pressure spring (202) is fixedly installed inside the top cover (2). The other end of the upper pressure spring (202) is fixedly connected to the upper pressure block (201).

10. A method for securely destroying business invoices, characterized in that, The secure destruction method is based on the secure destruction device for business invoices as described in claim 8, and the secure destruction method includes: Step 1: Rotate to open the top cover (2), neatly place the bills that need to be safely destroyed into the placement slot (101), place the bills on the upper conveyor plate (102), and close the top cover (2). Step 2: Start the air pump (5) and plasma generator (4). The air pump (5) delivers the dry gas from the outside to the plasma generator (4). The plasma generator (4) generates a negatively charged plasma gas flow based on the dry gas. Step 3: The plasma gas flow is blown into the airbag (111) through the air inlet pipe (112), causing the airbag (111) to expand in the fixed air box (11) and push the longitudinal block (12) to slide. The solenoid valves in the two air inlet pipes (112) open and close at a preset frequency. Step 4: When the plasma gas flow in the airbag (111), the air outlet tube (113), and the fixed column (10) accumulates to a certain amount, the air pressure pushes the sliding piston (13), which delivers the plasma gas flow from the fixed column (10) to the rotating air tube (7). The plasma gas flow is then blown out from the blowing hole (702) to the arc-shaped concave surface of the arc-shaped lever (701), thereby driving the rotating air tube (7) to rotate. Step 5: The rotating air tube (7) and the arc-shaped paddle (701) move the bills on the upper conveyor plate (102) from bottom to top. During the movement, the plasma airflow blows into the gaps of each bill, so that each bill carries the same charge. Step 6: During the sliding process of the sliding piston (13), the arc-shaped sliding column (131) is driven to slide, which in turn drives the reciprocating slider (14) to slide, causing the telescopic column (15) between the two reciprocating sliders (14) to rotate, slide and extend. The telescopic motor (16) and the transverse blade (17) below the telescopic column (15) also rotate and slide. Step 7: Start the rotating motor (3), which drives the first gear (20) to rotate through the second gear (21), the third gear (22), the first chain (18) and the second chain (19). The conveying roller (8) on the upper conveying plate (102) conveys the bottom bill to the turning groove (104). When the bill passes through the turning groove (104) and is conveyed to the lower conveying plate (103), it is printed on both sides by two printing rollers (9) to print and cover the text, numbers, patterns, tables or stamps on the bill. Step 8: The upper conveyor roller (8) of the lower conveyor plate (103) conveys the printed bill to the reciprocating sliding longitudinal cutting block (12). When the bill passes through the longitudinal cutting block (12), it is longitudinally cut by the longitudinal blade (121). The bill is longitudinally cut into multiple curved strips by the longitudinal blade (121). Step 9: The bill strip is conveyed by the conveyor roller (8) to the transverse blade (17) and transverse slit (105). The telescopic motor (16) extends and retracts every preset cycle. When the telescopic motor (16) extends, the transverse blade (17) cuts the bill strip below transversely, cutting the bill strip into fragments. The fragments are conveyed to the fragment drawer (6) by the conveyor roller (8).

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