Full-automatic paper shredder

Abstract

The full-automatic paper shredder comprises a machine box, the machine box comprises an upper box body and a lower box body, a paper supply device is arranged in the upper box body, a paper shredding device and a shredded paper storage device are arranged in the lower box body, and the paper supply device comprises a paper storage box, a translation mechanism, a pushing and lifting mechanism and a paper rubbing mechanism; according to the full-automatic paper shredder, a user neatly stacks a certain amount of paper in the paper storage box, then the translation mechanism operates to transfer the paper storage box to the position over the pushing and lifting mechanism, and the pushing and lifting mechanism is immediately started to push the paper upwards until the paper is in close contact with the paper rubbing mechanism; the paper rubbing mechanism sequentially conveys the paper to the paper shredding device one by one, the efficient operation mode that the paper can be automatically separated and shredded after one-time paper adding is achieved, in this way, the paper clamping problem possibly caused by manual paper separation is avoided, the paper shredding efficiency is greatly improved, and smoother and more convenient use experience is brought to a user.

Description

Technical Field

[0001] The invention relates to the technical field of paper shredding, and in particular to a fully automatic paper shredder. Background Art

[0002] As an important office equipment, paper shredders play a key role in processing documents with confidentiality requirements. In the actual use of paper shredders, existing paper shredders have many shortcomings. On the one hand, most paper shredders require manual division of the paper to be shredded into one or more sheets that do not exceed the load of the shredder. This process requires the user to be on duty throughout the process, which not only consumes time and energy, but also seriously affects work efficiency. On the other hand, in order to save time, users often put paper that exceeds the load of the shredder into the shredder. When the shredder encounters an overload, it often needs to be reversed to process the paper, and the reversal can easily cause paper jams, which in turn cause failures. This not only increases the user's time cost, but may also damage the shredder equipment and affect its normal use.

[0003] In summary, existing paper shredders have problems such as cumbersome operation, low efficiency and easy failure during use, and cannot meet people's needs for efficient and safe paper shredding. Summary of the invention

[0004] In view of this, the present invention proposes a paper shredder, aiming to overcome the problems of manual paper separation and overload reversal jamming existing in the existing paper shredders during use.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A fully automatic paper shredder comprises a chassis, wherein the chassis comprises an upper box body and a lower box body fixedly connected to the lower end of the upper box body, wherein a paper shredding device and a paper shredding storage device are arranged in the lower box body, wherein a paper shredding output end of the paper shredding device is communicated with a paper shredding input end of the paper shredding storage device, and further comprises a paper feeding device arranged in the upper box body, wherein a second paper feed port is arranged on the bottom surface of the upper box body, wherein the paper feeding device feeds paper into the paper shredding device through the second paper feed port in a sheet-by-sheet manner, and wherein the paper feeding device comprises a paper storage box, a translation mechanism, a lifting mechanism and a paper rubbing mechanism;

[0007] The translation mechanism is arranged at the bottom of the upper box body, the paper storage box is fixedly arranged on the moving module of the translation mechanism, and a side wall of the upper box body is provided with a paper box inlet and outlet horizontally facing the paper storage box, and the paper storage box moves with the moving module of the translation mechanism and enters and exits the upper box body through the paper box inlet and outlet;

[0008] The paper storage box comprises a paper box side plate and a paper box bottom plate, at least two bottom sides of the paper box side plate are provided with a supporting plate bent inwardly horizontally, and the paper box bottom plate is placed on the supporting plate;

[0009] The fixed component of the push-up mechanism is fixed on the fixed component of the translation mechanism, and the push-up part of the push-up mechanism is arranged directly below the bottom plate of the paper box when the paper storage box is parked at a preset position in the upper box body, and the push-up part of the push-up mechanism can push the bottom plate of the paper box to rise and fall along the height direction of the paper storage box;

[0010] The paper picking mechanism is arranged above the bottom plate of the paper box when the paper storage box is parked at a preset position in the upper box body. When the paper stacked on the bottom plate of the paper box is pushed up by the pushing mechanism to abut against the paper picking roller of the paper picking mechanism, the paper picking roller can push the paper in contact with it into the paper feeding end of the paper shredding device.

[0011] In order to better implement the above technical solution, optionally, the side panels of the paper box include a left panel, a right panel, a front panel and a rear panel, the rear end of the right panel, the rear end of the left panel and the two ends of the rear panel are fixedly connected to form a U-shaped structure, the front end of the left panel and the front end of the right panel are embedded with elastic telescopic rods, the front ends of the two elastic telescopic rods are connected to the rear side of the front panel, so that the side panels of the paper box have a rectangular frame structure, and the supporting plates are two pieces, which are respectively arranged on the opposite sides of the left panel and the right panel.

[0012] Optionally, the top surface of the rear plate is lower than the top surfaces of the left and right plates by a thickness of a sheet of paper.

[0013] Optionally, the left and right plates are provided with a plurality of vertically extending guide grooves at intervals on opposite side walls, and guide rods corresponding to the guide grooves are provided on both sides of the bottom plate of the paper box, and the guide rods are slidably matched with the guide grooves.

[0014] Optionally, it also includes a controller, an optical signal transmitter and an optical signal receiver, wherein the optical signal transmitter is installed in the middle of the pushing part of the pushing mechanism, and the optical signal receiver is installed in the center of the bottom surface of the bottom plate of the paper box, and the controller is electrically connected to the optical signal transmitter, the optical signal receiver, the pushing mechanism, the translation mechanism and the paper rubbing mechanism respectively.

[0015] Optionally, the pushing portion of the lifting mechanism is embedded with a plurality of first magnets around the optical signal transmitter, and the bottom plate of the paper box is provided with a plurality of second magnets around the optical signal receiver, and the first magnets and the second magnets are magnetically matched with each other up and down.

[0016] Optionally, it also includes an electromagnetic lock and a paper release control switch, wherein the lock body of the electromagnetic lock is arranged on the front inner wall of the upper box body, the lock slot of the electromagnetic lock is arranged on the front plate, the paper release control switch is arranged on the front outer wall of the upper box body and is electrically connected to the controller, and a paper detector for detecting the remaining amount of paper in the paper storage box is also arranged on the top of the upper box body, and the paper detector is electrically connected to the controller. When the paper detector detects that the remaining amount of paper in the paper storage box is zero, the paper release control switch is activated, and the paper storage box can be pushed out of the upper box body by the translation mechanism.

[0017] Optionally, it also includes a paper guide cover, which is in an arc structure, and the paper feed end of the paper guide cover is tightly attached to the paper outlet end when the paper storage box is parked at a preset position in the upper box body, and the paper outlet end of the paper guide cover is connected to the second paper feed port.

[0018] The axle up and down groove at two ends embeds respectively in two guide rails of different the intersection of front and rear wheels, and the guide rails of different the intersection of front and rear wheels are meshed with each other.

[0019] Beneficial effects of the present invention:

[0020] The fully automatic paper shredder of the present invention is equipped with a paper storage box, a translation mechanism, a pushing mechanism and a paper picking mechanism. The user places an appropriate amount of paper neatly in the paper storage box, and then the translation mechanism operates to transfer the paper storage box to just above the pushing mechanism. The pushing mechanism then starts to push the paper upward until it contacts the paper picking roller of the paper picking mechanism. The paper picking roller transports the paper to the shredding device in an orderly manner one by one, realizing an efficient operation mode in which the paper can be automatically separated and shredded after adding paper once. This not only avoids the paper jam problem that may be caused by manual separation, but also greatly improves the paper shredding efficiency, brings a smoother and more convenient use experience to users, and effectively promotes the automation process of paper shredding operations.

[0021] The fully automatic paper shredder of the present invention, with the help of electromagnetic locks, paper feeding control switches, paper detectors and controls, during the paper shredding process, only when the paper detector determines that the remaining paper in the paper storage box is zero, the paper feeding control switch opens the paper adding permission. This control mechanism effectively eliminates the risk of adding paper in the middle of the paper shredding process, prevents various security risks that may be caused by information leakage from the source, and provides reliable protection for the user's sensitive information, allowing the user to perform paper shredding operations with peace of mind.

[0022] The fully automatic paper shredder of the present invention fully considers the needs of users to handle small amounts of paper, and is provided with a guide plate and a first paper feed port to form a dedicated channel together with a paper guide cover 50. When faced with the need to shred a small amount of paper, the user puts the paper in through the first paper feed port, and the paper smoothly enters the shredding process under the guidance of the guide plate, which greatly enhances the convenience of shredding a small amount of paper, provides users with flexible and efficient options for dealing with different amounts of paper, and expands the practicality and diversity of the shredder's functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional schematic diagram of a fully automatic paper shredder according to an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 A three-dimensional schematic diagram of a paper feeding device;

[0025] Figure 3 yes Figure 2 Side view of adding paper to the middle paper feeding device (the paper storage box is located outside the upper box);

[0026] Figure 4 yes Figure 2 Side view of the paper supply device in the middle (the paper storage box is located in the upper box);

[0027] Figure 5 yes Figure 2 A three-dimensional schematic diagram of a paper storage box;

[0028] Figure 6 yes Figure 5 A cross-sectional view of the paper storage box in the middle (front view);

[0029] Figure 7 yes Figure 5 A vertical section of the middle paper storage box (side view);

[0030] Figure 8 yes Figure 2 Side view of the middle paper pickup mechanism;

[0031] Reference numerals:

[0032] Upper box 10, first paper inlet 101, second paper inlet 102, paper box inlet and outlet 103, lower box 11, paper feeding device 2, paper storage box 21, left side plate 211, right side plate 212, front plate 213, rear plate 214, supporting plate 215, paper box bottom plate 216, guide groove 217, guide rod 218, bottom plate 220, vertical plate 221, slide hole 2211, power motor 222, screw 223, first shaft seat 224, slide seat 225, base plate 226, connecting rod 227, guide rail 228 , a pushing plate body 230, a linear motor 231, a telescopic guide rod 232, a pushing plate 233, an optical signal transmitter 234, a first magnet 235, a paper picking mechanism 24, a paper picking power motor 241, a driving gear 2421, a driven gear 2422, a gear shaft 243, a paper pressing board 244, a paper picking roller 245, a second shaft seat 246, a shredded paper storage device 3, a shredded paper storage box 30, a lock body 401, a lock slot 402, a paper release control switch 403, a paper guide cover 50, a support plate 51, and a guide plate 52. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments, wherein the same components are represented by the same reference numerals.

[0034] See also Figures 1 to 8 The embodiment of the present invention discloses a fully automatic paper shredder, including a chassis, a paper supply device 2, a paper shredding device and a shredded paper storage device 3.

[0035] The chassis includes an upper box body 10 and a lower box body 11 fixedly connected to the lower end of the upper box body 10. The shredding device and the shredded paper storage device 3 are sequentially assembled in the lower box body 11 from top to bottom. The paper supply device 2 is assembled in the upper box body 10. A second paper inlet 102 is provided on the bottom surface of the upper box body 10. The paper supply device 2 feeds paper into the shredding device through the second paper inlet 102 one by one. The shredded paper output end of the shredding device is connected to the shredded paper input end of the shredded paper storage device 3. The shredding device is used to shred the input paper, and the shredded paper storage device 3 is used to temporarily store the shredded paper generated by the shredding device.

[0036] In the embodiment of the present invention, the structure of the paper shredder is a prior art known technology, and the present invention does not make any improvements thereto, and the specific structure will not be described in detail.

[0037] like Figure 1 As shown, the shredded paper storage device 3 includes two drawer-type shredded paper storage boxes 30. The two shredded paper storage boxes 30 discard shredded paper at different positions, making the shredded paper more difficult to recover, thereby effectively reducing the risk of information leakage.

[0038] like Figure 2-Figure 7As shown, the paper feeding device 2 includes a paper storage box 21, a translation mechanism, a lifting mechanism and a paper picking mechanism 24; wherein, the translation mechanism is arranged at the bottom of the upper box body 10, the paper storage box 21 is fixedly arranged on the moving module of the translation mechanism, and the front side wall of the upper box body 10 is provided with a paper box inlet and outlet 103 which is horizontally opposite to the paper storage box 21. The paper storage box 21 enters and exits the upper box body 10 through the paper box inlet and outlet 103 with the help of the moving module of the translation mechanism. Specifically, the upper end of the paper storage box 21 is an open end. When the paper storage box 21 extends out of the upper box body 10 from the paper box inlet and outlet 103, the user can neatly stack the paper to be shredded in the paper storage box 21.

[0039] like Figure 5-Figure 7 As shown, the paper storage box 21 includes a paper box side panel and a paper box bottom panel 216. At least two bottom sides of the paper box side panel are provided with a supporting plate 215 that is horizontally bent inward. The paper box bottom panel 216 is placed on the supporting plate 215. The paper box side panel, the paper box bottom panel 216 and the supporting plate 215 together constitute a movable paper storage structure, which helps to ensure the neatness and stability of the paper during storage and transportation, and provides a reliable basic condition for subsequent paper rubbing and shredding operations.

[0040] like Figure 2-Figure 5 As shown, the fixed component of the pushing mechanism is fixed on the fixed component of the translation mechanism, and the pushing part of the pushing mechanism is arranged directly below the bottom plate 216 of the paper box when the paper storage box 21 is parked at a preset position in the upper box body 10. The pushing part of the pushing mechanism can push the bottom plate 216 of the paper box to rise and fall along the height direction of the paper storage box 21; specifically, when the paper storage box 21 is parked at a preset position in the upper box body 10 under the drive of the translation mechanism, the pushing part of the pushing mechanism is precisely aligned with the bottom plate 216 of the paper box. At this time, the pushing part operates to push the bottom plate 216 of the paper box to rise and fall along the height direction of the paper storage box 21, thereby realizing precise control of the height of the paper, and then providing a stable and precise paper supply for the subsequent paper grabbing operation of the paper rubbing mechanism, thereby ensuring the efficiency and accuracy of the overall operation of the shredder.

[0041] like Figure 2-Figure 4 as well as Figure 8 As shown, the paper picking mechanism 24 is arranged above the paper box bottom plate 216 when the paper storage box 21 is parked at a preset position in the upper box body 10. When the paper stacked on the paper box bottom plate 216 is pushed up by the pushing mechanism to abut against the paper picking roller 245 of the paper picking mechanism 24, the paper picking roller 245 can push the paper in contact with it into the paper feed end of the paper shredding device. Specifically, when the paper stacked on the paper box bottom plate 216 is pushed up by the pushing mechanism until it abuts tightly against the paper picking roller 245, the paper picking mechanism 24 starts the paper pushing mechanism to push the paper in contact with the paper picking roller 245 into the paper feed end of the paper shredding device, thereby ensuring that the paper can smoothly enter the paper shredding process.

[0042] The shredding principle of a fully automatic shredder in the embodiment of the present invention is as follows:

[0043] In the initial stage, the moving module of the translation mechanism starts to operate, driving the paper storage box 21 to extend outward from the paper box inlet and outlet 103 until the entire opening or most of the opening of the paper storage box 21 is completely exposed to the outside of the upper box body 10. At this time, the user places a certain number of papers neatly in the paper storage box 21.

[0044] Subsequently, the moving module of the translation mechanism performs reverse movement, driving the paper storage box 21 to re-enter the interior of the upper box body 10 from the paper box inlet and outlet 103, and stay at a preset standard position.

[0045] Then, the pushing part of the lifting mechanism starts to move upward, and after initially contacting the paper box bottom plate 216, it continues to apply an upward thrust, causing the paper box bottom plate 216 to continue to rise, thereby making the paper at the top in the paper storage box 21 fit tightly with the paper pickup roller 245 of the paper pickup mechanism 24, reaching a ready state for paper transmission.

[0046] Finally, the paper pickup roller 245 of the paper pickup mechanism 24 starts to rotate, and by virtue of the friction and driving force generated by its rotation, pushes the topmost paper in contact with it backward, so that the paper smoothly enters the paper shredding device, thereby starting the paper shredding process. The shredded paper is transported to the shredded paper storage device 3 for temporary storage until the storage volume reaches a certain level, and then further processing operations are performed on the shredded paper according to actual conditions, such as cleaning or transfer.

[0047] It should be noted that during the entire paper shredding process, every time the paper pickup roller 245 of the paper pickup mechanism 24 brings out a piece of paper, the pushing part of the lifting mechanism will respond quickly, pushing the remaining paper in the paper storage box 21 to the height of a piece of paper, ensuring that the paper pickup roller 245 can be in close contact with the paper again, so as to continue to push the next piece of paper into the paper shredding device, ensuring the continuity and efficiency of the paper shredding process, so that the paper shredder can stably and efficiently complete the shredding process of a large amount of paper, meeting the user's actual needs for safe destruction of documents.

[0048] like Figures 5 to 7As shown, the side panels of the paper box include a left side panel 211, a right side panel 212, a front panel 213 and a rear panel 214. The rear end of the right side panel 212, the rear end of the left side panel 211 and the two ends of the rear panel 214 are fixedly connected to form a U-shaped structure. The front end of the left side panel 211 and the front end of the right side panel 212 are both embedded with elastic telescopic rods 219. The front end of each elastic telescopic rod 219 is connected to the rear side of the front panel 213, so that the side panels of the paper box have a rectangular frame structure. The supporting plates 215 are divided into two pieces, which are respectively arranged on the opposite sides of the left side panel 211 and the right side panel 212. The left side panel 211 and the right side panel 212 are an integral structure with the corresponding supporting plates 215.

[0049] Specifically, the left side plate 211 and the right side plate 212 are both formed by left and right plate bodies being spliced ​​together. The front sides of the left side plate 211 and the right side plate 212 are both provided with mounting holes with semicircular cross-sections. The rear sides of the elastic telescopic rods 219 are placed in the mounting holes. The front ends of the elastic telescopic rods 219 are fixed on the front plate 213, so that the front plate 213 can be flexibly moved in the front and rear directions relative to the left side plate 211 and the right side plate 212. In the process of placing paper into the paper storage box 21, the operator can use the movable characteristic of the front plate 213 to conveniently adjust the neatness of paper placement by pulling the front plate 213 outward, which greatly reduces the problems of paper jams and unsmooth paper separation caused by uneven paper placement, thereby effectively ensuring the smoothness and stability of the overall operation of the shredder and improving the efficiency and quality of the shredding work.

[0050] like Figure 5 As shown, the top surface of the rear plate 214 is lower than the top surfaces of the left plate 211 and the right plate 212 by the thickness of a sheet of paper. At the same time, the top surfaces of the left plate 211 and the right plate 212 are maintained in a completely flush state. When the pickup roller 245 starts to operate, due to the relatively low height difference of the top surface of the rear plate 214, the front edge of the paper will naturally tilt up slightly, so that the pickup roller 245 can contact and grab the top sheet of paper more accurately and easily, effectively improving the accuracy and smoothness of the paper separation process, and reducing the jamming or misgrasping that may occur during paper separation.

[0051] like Figures 5 to 7The left side plate 211 and the right side plate 212 are provided with a plurality of vertically extending guide grooves 217 on the side walls opposite to each other. At the same time, guide rods 218 corresponding to the guide grooves 217 are provided on both sides of the paper box bottom plate 216. The guide rods 218 slide in cooperation with the guide grooves 217. Specifically, the number of guide grooves 217 of each of the left side plate 211 and the right side plate 212 is four. Accordingly, the total number of guide rods 218 is eight. The provision of the guide rods 218 and the guide grooves 217 can effectively guide and restrain the lifting and lowering movement of the paper box bottom plate 216 accurately, ensuring that the paper box bottom plate 216 always moves along a predetermined straight line trajectory during the lifting process, thereby greatly improving the lifting and lowering accuracy and stability of the paper box bottom plate 216.

[0052] like Figure 3 and Figure 4 As shown, it also includes a paper guide cover 50. The paper guide cover 50 adopts an arc structure. Its paper feed end is closely connected with the rear end of the paper storage box 21 when it is parked in the upper box body 10. The paper outlet end of the paper guide cover 50 is located above the paper shredding device. Specifically, the lower end of the paper guide cover 50 is arranged in the upper box body 10 through a support plate 51. The width of the open end of the paper guide cover 50 is greater than the width of the paper. The height of the open end of the paper guide cover 50 is 2 cm, so that the paper can smoothly enter the paper shredding device directly from the paper storage box 21 through the paper guide cover 50, which greatly optimizes the paper transmission path and improves the overall efficiency of the paper shredding process.

[0053] like Figures 2 to 4As shown, the translation mechanism includes a base, a driving module, a guiding module, a sliding module and a connecting assembly. The base is flat-bottomed U-shaped and is composed of a bottom plate 220 and two side vertical plates 221. The driving module and the guiding module are arranged on the bottom plate 220. The driving module includes a power motor 222, a screw 223 and a first shaft seat 224. One end of the screw 223 is coaxially connected to the power shaft of the power motor 222, and the other end of the screw 223 is rotatably arranged in the first shaft seat 224. , so that the power motor 222 drives the screw 223 to rotate, the guide module includes two guide rails 228 arranged on both sides of the screw 223 and parallel to the screw 223, the two guide rails 228 are fixed on the bottom plate 220, and the sliding module includes a slide seat 225 and a seat plate 226, the slide seat 225 has a threaded hole that matches the screw 223 thread and a guide hole that matches the two guide rails 228, and the slide seat 225 is threadedly matched with the screw 223 and slidably matched with the guide rails 228, so that The power motor 222 drives the slide 225 to move along the length direction of the guide rail 228, the seat plate 226 is installed on the top surface of the slide 225, and the two sides of the vertical plate 221 are provided with sliding holes 2211 along the length direction of the screw rod 223. The two sides of the seat plate 226 extend from the two sliding holes 2211 and slide with the sliding holes 2211 along the length direction of the sliding holes 2211. The connecting component includes two connecting rods 227, and the lower ends of the two connecting rods 227 are respectively connected to the two side ends of the seat plate 226. The upper end of the connecting rod 227 is located above the vertical plate 221 and is connected to the rear bottom ends of the left plate 211 and the right plate 212. During the movement, the slide 225 drives the paper storage box 21 to move along the length direction of the guide rail 228 through the seat plate 226 and the connecting rod 227, thereby enabling the paper storage box 21 to enter and exit the upper box body 10. At the same time, by setting the base, the seat plate 226 and the connecting assembly, a larger installation space can be provided above the screw 223, which is convenient for installing the lifting mechanism.

[0054] like Figures 2 to 4 The pushing mechanism includes a pushing plate body 230, a linear motor 231, a telescopic guide rod 232 and a pushing plate 233. The linear motor 231 is fixed at the center of the top surface of the pushing plate body 230. The telescopic guide rod 232 is evenly arranged around the linear motor 231, and the lower end of the telescopic guide rod 232 is fixed to the top surface of the pushing plate body 230. The upper end of the linear motor 231 and the upper end of the telescopic guide rod 232 are both connected to the bottom surface of the pushing plate 233. Specifically, there are four telescopic guide rods 232, which are arranged around the pushing shaft of the linear motor 231. The maximum stroke of the pushing shaft is consistent with the thickness of the maximum number of papers that can be placed in the paper storage box 21. It ensures that the pushing mechanism can push the topmost paper to a position in close contact with the paper pickup roller 245 according to the actual number of papers in the paper storage box 21, providing an ideal paper starting state for subsequent paper pickup operations, greatly improving the accuracy and reliability of paper transmission.

[0055] In the embodiment of the present invention, a controller, a light signal transmitter 234 and a light signal receiver (not shown in the figure) are also included. The light signal transmitter 234 is installed in the middle of the top surface of the push plate 233, and the light signal receiver is set at the center of the bottom surface of the paper box bottom plate 216. The controller is electrically connected to the light signal transmitter 234, the light signal receiver, the push mechanism, the translation mechanism and the paper picking mechanism 24 respectively. When the light signal transmitter 234 and the light signal receiver are aligned up and down with the operation of the push mechanism, the light signal receiver can quickly capture the light signal and immediately send an accurate signal instruction to the push mechanism. At this time, the linear motor 231 will drive the push plate 233 to rise according to the received signal, and then drive the paper on the paper box bottom plate 216 to rise until it is tightly attached to the paper picking roller (245) of the paper picking mechanism.

[0056] like Figure 2 As shown, the pushing portion of the pushing mechanism is embedded with multiple first magnets 235 around the optical signal transmitter 234. Specifically, there are four first magnets 235, and they are embedded in the corners of the top surface of the pushing plate body 230. Second magnets (not shown in the figure) corresponding to the first magnets 235 are arranged on the paper box bottom plate 216 around the optical signal receiver. The first magnet 235 and the second magnet are magnetically attracted to each other up and down. During the descending process of the pushing plate body 230, due to the magnetic connection between the first magnet 235 and the second magnet, the paper box bottom plate 216 will descend synchronously under the traction of the magnetic force until it falls on the supporting plate 215.

[0057] like Figure 3 and Figure 4 As shown, in an embodiment of the present invention, it also includes an electromagnetic lock and a paper release control switch 403. The lock body 401 of the electromagnetic lock is arranged on the front inner wall of the upper box body 10, and the lock slot 402 of the electromagnetic lock is arranged on the upper end surface of the front plate 213. The paper release control switch 403 is arranged on the outer wall of the upper box body 10 and is electrically connected to the controller. The top of the upper box body 10 is also provided with a paper detector for the remaining amount of paper in the paper storage box 21. The paper detector is electrically connected to the controller. When the paper detector detects that the remaining amount of paper in the paper storage box 21 is zero, when the paper release control switch 403 is started, the paper storage box 21 pushes the translation mechanism out of the upper box body 10. The paper detector is preferably a photosensitive probe. By setting an electromagnetic lock, it is possible to avoid adding paper in the middle of the paper shredding process, thereby causing information leakage.

[0058] In the embodiment of the present invention, a first paper inlet 101 is further provided on the top surface of the upper box body, and a second guide structure 32 is provided in the upper box body 10 . The second guide structure 32 cooperates with the paper guide cover 50 to form a single paper guide channel.

[0059] like Figure 8As shown, the paper pickup mechanism 24 includes a paper pickup motor 241, a gear transmission assembly, a gear shaft 243, a paper pressing board 244, a paper pickup roller 245 and a housing 247. The housing 247 is fixed to the top surface inside the upper box 10, and its lower end is open. A second shaft seat 246 is fixed on the opposite side walls inside the housing 247. The two ends of the gear shaft 243 are respectively connected to the second shaft seat 246 in a rotatable manner. The gear transmission assembly includes a driving gear 2421 fixed on the power shaft of the paper pickup motor 241 and a driven gear 2422 fixed on the gear shaft 243. The driving gear 2421 and the driven gear 2422 are meshed with each other to achieve power transmission. There are two paper pickup rollers 245, both of which are fixed on the gear shaft 243 and can rotate synchronously with the rotation of the gear shaft 243. The paper pressing plate 244 is installed at the lower end of the housing 247, and is provided with a through hole 2441. The outer surface of the paper picking roller 245 can extend from the through hole 2441 when rotating, and contact the topmost paper in the paper storage box 21. Specifically, when the paper picking roller 245 contacts the topmost paper in the paper storage box 21, as the paper picking roller 245 rotates, the friction between the paper picking roller 245 and the paper is used to drive the paper to move toward the paper guide cover 50, thereby realizing the transmission of the paper. The paper pressing plate 244 structure can play a certain role in suppressing the paper during the paper picking process, effectively preventing the paper from floating upward due to factors such as static electricity, thereby affecting the effect and efficiency of the paper picking, and ensuring that the paper can be stably sent to the subsequent paper shredding process according to the predetermined path, so as to maintain the consistency and stability of the entire paper shredding work.

[0060] like Figure 3 and Figure 4 As shown, in the embodiment of the present invention, it also includes a guide plate 52 fixedly arranged in the upper box body 10, and the guide plate 52 and the paper guide cover 50 together form a paper guide channel. The upper box body 10 is provided with a first paper feed port 101 which is directly opposite to the guide channel and the second paper feed port 102. When facing the actual working condition that a small amount of paper needs to be shredded, the user can easily and gently put a small amount of paper through the first paper feed port 101, and the paper immediately enters the paper guide channel defined by the guide plate 52 and the paper guide cover 50. Under the guidance of the channel, the paper can move down along a predetermined trajectory. Finally, it successfully passes through the second paper inlet 102 and enters the shredding device, thereby starting the shredding process. The setting of the guide plate 52 and the first paper inlet 101 not only fully takes into account the need to shred a small amount of paper that may occur in actual use, and provides it with an exclusive and convenient channel, which greatly improves the flexibility and adaptability of the shredder in processing different amounts of paper, but also further optimizes the paper transmission path, reduces the problems of paper jams and deviations that may occur during the transmission process of the paper, effectively improves the overall working efficiency and reliability of the shredder, and brings users a more convenient and efficient use experience.

[0061] The technical solution of the present invention is described in detail above in conjunction with specific embodiments, and the described specific embodiments are used to help understand the concept of the present invention. Derivations and modifications made by those skilled in the art based on the specific embodiments of the present invention also fall within the protection scope of the present invention.

Claims

1. A fully automatic paper shredder, comprising a chassis, wherein the chassis comprises an upper chassis (10) and a lower chassis (11) fixedly connected to the lower end of the upper chassis (10), wherein a paper shredding device and a paper shredding storage device (3) are arranged in the lower chassis (11), wherein a paper shredding output end of the paper shredding device is connected to a paper shredding input end of the paper shredding storage device (3), and wherein: The machine also comprises a paper supply device (2) arranged in the upper box body (10), wherein the bottom surface of the upper box body (10) is provided with a second paper feed port (102), and the paper supply device (2) feeds paper into the paper shredding device through the second paper feed port (102) one by one, and the paper supply device (2) comprises a paper storage box (21), a translation mechanism, a lifting mechanism and a paper rubbing mechanism (24); The translation mechanism is arranged at the bottom of the upper box body (10); the paper storage box (21) is fixedly arranged on the moving module of the translation mechanism; a side wall of the upper box body (10) is provided with a paper box inlet and outlet (103) horizontally facing the paper storage box (21); the paper storage box (21) moves with the moving module of the translation mechanism and enters and exits the upper box body (10) through the paper box inlet and outlet (103); The paper storage box (21) comprises a paper box side plate and a paper box bottom plate (216), at least two bottom sides of the paper box side plate are provided with a supporting plate (215) bent inwardly horizontally, and the paper box bottom plate (216) is placed on the supporting plate (215); The fixed component of the push-up mechanism is fixed on the fixed component of the translation mechanism, and the push-up portion of the push-up mechanism is arranged directly below the paper box bottom plate (216) when the paper storage box (21) is parked at a preset position in the upper box body (10). The push-up portion of the push-up mechanism can push the paper box bottom plate (216) to rise and fall along the height direction of the paper storage box (21); The paper picking mechanism (24) is arranged above the paper box bottom plate (216) when the paper storage box (21) is parked at a preset position in the upper box body (10); when the paper stacked on the paper box bottom plate (216) is pushed up by the pushing mechanism to abut against the paper picking roller (245) of the paper picking mechanism (24), the paper picking roller (245) can push the paper in contact with it into the paper feeding end of the paper shredding device.

2. A fully automatic paper shredder according to claim 1, characterized in that: The side panels of the paper box include a left side panel (211), a right side panel (212), a front panel (213) and a rear panel (214); the rear end of the right side panel (212), the rear end of the left side panel (211) and the two ends of the rear panel (214) are fixedly connected to form a U-shaped structure; the front end of the left side panel (211) and the front end of the right side panel (212) are both embedded with elastic telescopic rods (219); the front ends of the two elastic telescopic rods (219) are both connected to the rear side of the front panel (213), so that the side panels of the paper box present a rectangular frame structure; the supporting plate (215) consists of two pieces, which are respectively arranged on the opposite sides of the left side panel (211) and the right side panel (212).

3. A fully automatic paper shredder according to claim 2, characterized in that: The top surface of the rear plate (214) is lower than the top surfaces of the left side plate (211) and the right side plate (212) by the thickness of a sheet of paper.

4. A fully automatic paper shredder according to claim 3, characterized in that: The left side plate (211) and the right side plate (212) are provided with a plurality of vertically extending guide grooves (217) at intervals on opposite side walls, and the two sides of the paper box bottom plate (216) are provided with guide rods (218) corresponding to the guide grooves (217) one by one, and the guide rods (218) are slidably matched with the guide grooves (217).

5. The fully automatic paper shredder according to claim 1, characterized in that: It also includes a controller, an optical signal transmitter (234) and an optical signal receiver, wherein the optical signal transmitter (234) is installed in the middle of the push portion of the push mechanism, and the optical signal receiver is installed in the center of the bottom surface of the paper box bottom plate (216), and the controller is electrically connected to the optical signal transmitter (234), the optical signal receiver, the push mechanism, the translation mechanism and the paper rubbing mechanism (24) respectively.

6. A fully automatic paper shredder according to claim 5, characterized in that: The pushing portion of the lifting mechanism is embedded with a plurality of first magnets (235) around the optical signal transmitter (234), and the paper box bottom plate (216) is provided with a plurality of second magnets around the optical signal receiver, and the first magnets (235) and the second magnets are magnetically matched up and down.

7. A fully automatic paper shredder according to claim 6, characterized in that: The invention also comprises an electromagnetic lock and a paper release control switch (403), wherein the lock body (401) of the electromagnetic lock is arranged on the front inner wall of the upper box body (10), the lock slot (402) of the electromagnetic lock is arranged on the front plate (213), the paper release control switch (403) is arranged on the front outer wall of the upper box body (10) and is electrically connected to the controller, and a paper detector for detecting the remaining amount of paper in the paper storage box (21) is also arranged on the top of the upper box body (10), and the paper detector is electrically connected to the controller. When the paper detector detects that the remaining amount of paper in the paper storage box (21) is zero, the paper release control switch (403) is activated, and the paper storage box (21) can be pushed out of the upper box body (10) by the translation mechanism.

8. The fully automatic paper shredder according to claim 7, characterized in that: It also comprises a paper guide cover (50), the paper guide cover (50) is in an arc structure, the paper feed end of the paper guide cover (50) is closely attached to the paper discharge end when the paper storage box (21) is parked at a preset position in the upper box body (10), and the paper discharge end of the paper guide cover (50) is in communication with the second paper feed port (102).

9. The fully automatic paper shredder according to claim 8, characterized in that: The translation mechanism comprises a base, a driving module, a guiding module, a sliding module and a connecting assembly. The base comprises a bottom plate (220) and vertical plates (221) fixedly arranged on both sides of the bottom plate (220). The driving module and the guiding module are arranged on the bottom plate (220). The driving module comprises a power motor (222), a screw rod (223) and a first shaft seat (224). One end of the screw rod (223) is coaxially connected to the power shaft of the power motor (222). The other end of the screw rod (223) is rotatably arranged in the first shaft seat (224). The guiding module comprises two guide rails (228) arranged on both sides of the screw rod (223) and parallel to the screw rod (223). The sliding module comprises a slide seat (225) and a seat plate (226). The slide seat (225) is respectively screw-matched with the screw rod (223) and slidably matched with the two guide rails (228); the seat plate (226) is installed on the top surface of the slide seat (225); sliding holes (2211) are provided on both sides of the vertical plate (221) along the length direction of the screw rod (223); both side ends of the seat plate (226) extend from the two sliding holes (2211) and slidably match with the sliding holes (2211) along the length direction of the sliding holes (2211); the connecting assembly comprises two connecting rods (227); the lower ends of the two connecting rods (227) are respectively connected to the two ends of the seat plate (226) extending out of the sliding holes (2211); the upper ends of the two connecting rods (227) are located above the vertical plate (221) and connected to the rear bottom ends of the left plate (211) and the right plate (212).

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