Unmanned automatic batch demagnetization device and method

Abstract

The unmanned automatic batch degaussing device comprises a degaussing mechanism, a crushing mechanism, a collecting mechanism, an information processing mechanism and a framework, the degaussing mechanism comprises a transmission mechanism, an identification mechanism and a degausser, the transmission mechanism transmits a plurality of hard disks into the degausser for degaussing, and the crushing mechanism is used for crushing the hard disks; the recognition mechanism located above the transmission mechanism can photograph the hard disk entering the magnetic eraser and transmit the photograph to the information processing mechanism to facilitate analysis and recording of the information processing mechanism; the crushing mechanism is positioned below the tail part of the transmission mechanism and can crush the demagnetized hard disk; the collecting mechanism is located below the smashing mechanism and used for collecting the smashed hard disks. According to the invention, the SN number of the hard disk can be identified, analyzed and recorded, so that the planning and statistics of the subsequent input hard disk can be facilitated, and the integrated functions of demagnetizing, crushing and collecting the hard disk can be realized, so that the hard disk can be properly handled after a fault occurs, and important data in the fields of finance, medical treatment and military institutions can be prevented from being leaked.

Description

Technical Field

[0001] This invention belongs to the field of information security technology, and in particular to an unmanned automated batch demagnetization device and method. Background Technology

[0002] Financial, medical, and military institutions involve a large number of electronic devices, which contain numerous hard drives. These hard drives need to be properly handled after failure to prevent the leakage of important data in these institutions. However, ordinary "formatting" and "emptying the recycle bin" only modify the file index; the data still exists on the hard drive and can be read using recovery software or forensic equipment.

[0003] Based on this, it is necessary to design an unmanned automated batch demagnetization device and method that can achieve batch demagnetization and shredding of hard drives, and completely and irreversibly destroy the data on the hard drives. Summary of the Invention

[0004] The present invention aims to overcome the defects in the prior art and provide an unmanned automated batch demagnetization device and method.

[0005] To achieve the above objectives, the technical solution adopted by this invention is: an unmanned automated batch demagnetization device, comprising a demagnetization mechanism, a crushing mechanism, a collecting mechanism, an information processing mechanism, and a frame for fixing the demagnetization mechanism, the crushing mechanism, the collecting mechanism, and the information processing mechanism. The demagnetization mechanism includes a transmission mechanism, an identification mechanism, and a demagnetizer. The transmission mechanism sequentially transmits several hard drives from the outside to the inside of the demagnetizer for demagnetization. The identification mechanism, located above the transmission mechanism, can photograph each hard drive entering the demagnetizer and transmit the image to the information processing mechanism for analysis and recording. The crushing mechanism is located below the tail of the transmission mechanism and can crush the demagnetized hard drives. The collecting mechanism, located below the crushing mechanism, is used to collect the crushed hard drives.

[0006] As a preferred embodiment of the present invention, the transmission mechanism includes a roller, a conveyor belt, and a tensioning support mechanism. The roller is sleeved on the front and rear sides of the conveyor belt, and a tensioning support mechanism is installed on each of the left and right sides of the roller. The tensioning support mechanism includes a mounting base and a bearing seat that can move back and forth along the length direction of the mounting base when the bolt rotates in the forward or reverse direction. The mounting base is fixed on the frame.

[0007] As a preferred embodiment of the present invention, one side of the roller is connected to the roller drive motor via a coupling, and the conveyor belt has a plurality of limiting plates that are fixed thereon by hot melting.

[0008] As a preferred embodiment of the present invention, the demagnetizer includes a demagnetizing bracket and a demagnetizer body, the demagnetizer body is placed inside the demagnetizing bracket, the bottom of the demagnetizing bracket is fixed to the frame, and the conveyor belt passes through the inside of the demagnetizer body.

[0009] As a preferred embodiment of the present invention, the identification mechanism includes a camera, which is fixed on the frame and faces the conveyor belt. The camera will capture the serial number (SN) of each hard drive and transmit it to the information processing mechanism.

[0010] As a preferred embodiment of the present invention, the crushing mechanism includes a set of crushing blades arranged in a cross and opposite manner and a drive mechanism for driving the crushing blades. The drive mechanism includes a drive motor, a reducer, a first cutter shaft, a drive gear, a driven gear, and a second cutter shaft. The drive motor drives the first cutter shaft to rotate through the reducer. The tail of the first cutter shaft is provided with a drive gear, and the tail of the second cutter shaft is provided with a driven gear that meshes with the drive gear. Both the first cutter shaft and the second cutter shaft are provided with a set of crushing blades.

[0011] As a preferred embodiment of the present invention, the crushing tool group includes spaced-apart tools and a mounting plate located between the spaced-apart tools. The tools in the crushing tool group are arranged opposite to each other with spaced overlap, and there is a certain distance between the tools and the mounting plate of the crushing tool group arranged opposite to each other.

[0012] As a preferred embodiment of the present invention, the cutting tool includes a cutting tool body, a cutting edge portion arranged circumferentially around the cutting tool body, and a concave-convex portion located between adjacent cutting edge portions. The cutting edge portion protrudes from the cutting tool body and the concave-convex portion and is inclined inward. The concave-convex portion includes convex portions and concave portions arranged at intervals.

[0013] As a preferred embodiment of the present invention, the crushing mechanism further includes a positioning bracket, which is fixed on the frame and has bearings for supporting the first cutter shaft and the second cutter shaft installed on it.

[0014] A method for unmanned automated batch demagnetization includes the following steps: Step 1: Place the hard drive between the limiting plates, start the conveyor belt and carry the hard drive into the frame. When the hard drive passes under the camera, the camera takes a picture of the hard drive and transmits it to the information processing mechanism for analysis, acquisition and recording of the hard drive's serial number. Step 2: If the SN number of the hard drive does not match the SN number to be destroyed, the information processing unit will directly control the conveyor belt to stop and manually remove the incorrectly placed hard drive. Then, a new hard drive will be placed and the steps will be repeated. Step 3: If the SN number of the hard drive matches the SN number to be destroyed, it will continue to be transported by conveyor belt to the demagnetizer for demagnetization. At the same time, the information processing unit will combine the information after the hard drive is photographed and identified with the demagnetization information and record and count it. Step 4: After demagnetization, the hard drive continues to be conveyed to the shredding mechanism via the conveyor belt. The drive mechanism drives the shredding blades to shred the hard drive. The shredded hard drive falls into the collection mechanism below, thus completing the entire process of information collection, demagnetization, and shredding of the hard drive.

[0015] The beneficial effects of this invention are: 1. The combination of the demagnetizing mechanism, crushing mechanism, collecting mechanism, information processing mechanism and frame of this invention can not only identify, analyze and record the serial number of the hard drive, which is beneficial for subsequent planning and statistics of the hard drive, but also realize the integrated function of demagnetizing, crushing and collecting the hard drive, so that the hard drive can be properly handled after failure, so as to prevent important data in the fields of finance, medical and military industries from being leaked.

[0016] 2. The transmission mechanism and identification mechanism of the present invention, in conjunction with the demagnetizer, enable the demagnetizer to demagnetize a specified hard drive and record the demagnetized hard drive, thereby achieving rapid batch demagnetization of hard drives.

[0017] 3. The limiting plate on the conveyor belt of this invention can limit the hard drives and prevent them from leaving the conveyor belt. Secondly, it can control the distance between the hard drives so that the serial number of each hard drive can be photographed, which is convenient for data statistics. It also allows the designated hard drives to be demagnetized and crushed, thus improving the efficiency of hard drive processing. Furthermore, the tensioning support mechanism can adjust and control the tension of the conveyor belt, ensuring that each hard drive is stably transported to the demagnetizer for demagnetization, greatly improving the efficiency of demagnetization.

[0018] 4. The combination of the cross-arranged and opposite crushing blade group and the driving crushing blade group of the present invention can realize the crushing of hard disks. In this invention, the blade edge of the blade cooperates with the mounting plate to quickly input the hard disk to be crushed into the gap between the blade and the mounting plate, thereby improving the crushing efficiency of hard disks.

[0019] 5. Compared with Embodiment 1, Embodiments 2 and 3 of the present invention have simpler functions, but they are faster and more efficient in processing the hard disk. Attached Figure Description

[0020] 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 schematic diagram of the demagnetizing mechanism of the present invention; Figure 4This is a schematic diagram of the crushing mechanism of the present invention; Figure 5 This is a schematic diagram of the structure of the crushing tool assembly of the present invention; Figure 6 This is a schematic diagram of the structure of the cutting tool of the present invention; Figure 7 This is a schematic diagram of the structure of the first cutter shaft of the present invention; Figure 8 This is a schematic diagram of the structure of the second cutter shaft of the present invention; Figure 9 This is a schematic diagram of the structure at point AA of the present invention; Figure reference numerals: 1. Demagnetizing mechanism; 2. Crushing mechanism; 3. Collecting mechanism; 4. Information processing mechanism; 5. Frame; 11. Transmission mechanism; 12. Identification mechanism; 13. Demagnetizer; 21. Crushing blade assembly; 22. Drive mechanism; 23. Positioning bracket; 111. Roller; 112. Conveyor belt; 113. Tensioning support mechanism; 114. Roller drive motor; 121. Camera; 131. Demagnetizing bracket; 132. Demagnetizer body; 211. Blade; 212. Mounting plate; 22. 1. Drive motor; 222. Reducer; 223. First cutter shaft; 224. Drive gear; 225. Driven gear; 226. Second cutter shaft; 231. Bearing; 232. First positioning block; 233. Second positioning block; 1121. Limiting plate; 1131. Mounting base; 1132. Bearing housing; 1133. Bolt; 2111. Tool body; 2112. Cutting edge; 2113. Concave and convex parts; 2231. First stepped part; 2232. Second stepped part; 2233. Thread. Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Example 1:

[0022] like Figures 1-9 As shown, an unmanned automated batch demagnetizing device includes a demagnetizing mechanism 1, a crushing mechanism 2, a collecting mechanism 3, an information processing mechanism 4, and a frame 5 that fixes the demagnetizing mechanism 1, the crushing mechanism 2, the collecting mechanism 3, and the information processing mechanism 4. The demagnetizing mechanism 1 includes a transmission mechanism 11, an identification mechanism 12, and a demagnetizer 13. The transmission mechanism 11 sequentially transmits several hard drives from the outside to the inside of the demagnetizer 13 for demagnetization. The identification mechanism 12, located above the transmission mechanism 11, can take pictures of each hard drive entering the demagnetizer 13 and transmit them to the information processing mechanism 4 for analysis and recording. The crushing mechanism 2 is located below the tail of the transmission mechanism 11 and can crush the demagnetized hard drives. The collecting mechanism 3, located below the crushing mechanism 2, is used to collect the crushed hard drives.

[0023] Hard drives have a serial number (SN), which is a unique identifier assigned to each hard drive by the manufacturer for product tracking, warranty verification, and anti-counterfeiting. It is typically a white or silver label on the hard drive's casing.

[0024] Specifically, in order to achieve the integrated functions of demagnetizing, shredding and collecting the hard drive, the demagnetizing mechanism 1, the shredding mechanism 2, the collecting mechanism 3 and the information processing mechanism 4 are arranged on the frame 5 at different heights. First, the identification mechanism 12 of the demagnetization mechanism 1 can monitor and photograph the transmission mechanism 11 in real time. If a hard drive enters the transmission mechanism 11, the hard drive is photographed, and the information processing mechanism 4 analyzes, obtains and records the SN number of the hard drive. Furthermore, the hard drive enters the demagnetizer 13, and the information processing mechanism 4 controls the transmission mechanism 11 to pause and sends charging and discharging commands to the demagnetizer 13, so that the hard drive completes the demagnetization operation inside the demagnetizer 13. After being demagnetized, the hard drive leaves the demagnetizer 13 under the action of the transmission mechanism 11 and falls into the crushing mechanism 2. The crushing mechanism 2 further crushes the demagnetized hard drive, and the crushed hard drive falls into the collection mechanism 3. The collection mechanism 3 can be taken out by opening the cabinet door of the frame 5, which facilitates the subsequent processing of waste.

[0025] It should be noted that if the information processing unit 4 analyzes that the hard drive that has been entered is a hard drive that does not need to be destroyed, the information processing unit 4 will directly control the transmission mechanism 11 to pause, and then the hard drive that was mistakenly inserted will be manually removed.

[0026] The information processing unit 4 is electrically connected to the demagnetizing unit 1 and the shredding unit 2. The information processing unit 4 can control the start, stop and pause of the demagnetizing unit 1 and the shredding unit 2. The information processing unit 4 includes the OpenCV software library and the Tesseract orc recognition engine. OpenCV can preprocess the captured image data and input the processed data into Tesseract orc to obtain the image text content. After comparing it with the sample in the database in the information processing unit 4, the hard disk SN number can be determined.

[0027] The frame 5 can be an aluminum alloy frame or a steel frame. The internal aluminum alloy or steel pipes can be adjusted according to the structure and position of the demagnetizing mechanism 1, the crushing mechanism 2, the collecting mechanism 3 and the information processing mechanism 4.

[0028] The combination of the demagnetizing mechanism 1, the crushing mechanism 2, the collecting mechanism 3, the information processing mechanism 4, and the frame 5 in this invention can not only identify, analyze, and record the serial number of the hard drive, which is beneficial for subsequent planning and statistics of the hard drive, but also realize the integrated function of demagnetizing, crushing, and collecting the hard drive, so that the hard drive can be properly handled after failure, so as to prevent important data in the fields of finance, medical care, and military industry from being leaked.

[0029] The transmission mechanism 11 includes a roller 111, a conveyor belt 112, and a tensioning support mechanism 113. The roller 111 is sleeved on the front and rear sides of the conveyor belt 112. A tensioning support mechanism 113 is installed on each of the left and right sides of the roller 111. The tensioning support mechanism 113 includes a mounting base 1131 and a bearing seat 1132 that can move back and forth along the length direction of the mounting base 1131 when the bolt 1133 rotates forward or backward. The mounting base 1131 is fixed on the frame 5.

[0030] One of the rollers 111 is connected to the roller drive motor 114 via a coupling, and the conveyor belt 112 has several limiting plates 1121 that are fixed thereon by heat fusion.

[0031] Specifically, the tensioning support mechanism 113 is located on the front and rear sides of the transmission mechanism 11, with two on the front side and two on the rear side of the transmission mechanism 11. Each tensioning support mechanism 113 is fixed on the frame 5, thereby fixing the transmission mechanism 11 on the frame 5. Furthermore, the tensioning support mechanism 113 includes a mounting base 1131 and a bearing seat 1132. The mounting base 1131 fixes the tensioning support mechanism 113 on the frame 5. The bolts 1133 pass through the threaded holes on the mounting base 1131 and the threaded holes on the bearing seat 1132 and are locked by nuts to fix the rollers 111 located on the bearing seats 1132 at both ends, thereby achieving the tensioning of the conveyor belt 112 located on the rollers 111. Under the action of the roller drive motor 114, the transmission mechanism 11 transmits stably. The limiting plate 1121 on the conveyor belt 112 restricts the distance between each hard drive, allowing the identification mechanism 12 sufficient time to identify the serial number of each hard drive one by one, thus facilitating the orderly conduct of the hard drive demagnetization, shredding, and collection processes.

[0032] The demagnetizer 13 includes a demagnetizing bracket 131 and a demagnetizer body 132. The demagnetizer body 132 is placed inside the demagnetizing bracket 131. The bottom of the demagnetizing bracket 131 is fixed to the frame 5. The conveyor belt 112 passes through the interior of the demagnetizer body 132. The demagnetizing bracket 131 serves to support the demagnetizer body 132. The conveyor belt 112 passes through the interior of the demagnetizer body 132 so that each hard drive on the conveyor belt 112 can be transported to the interior of the demagnetizer body 132 for demagnetization.

[0033] The identification mechanism 12 includes a camera 121, which is fixed on the frame 5 and faces the conveyor belt 112. The camera 121 will capture the serial number of each hard drive and transmit it to the information processing mechanism 4, which will then determine the next step.

[0034] The transmission mechanism 11 and the identification mechanism 12 of the present invention work together with the demagnetizer 13 to enable the demagnetizer 13 to demagnetize a specified hard drive and record the demagnetized hard drive, thereby enabling rapid batch demagnetization of hard drives. Furthermore, the limit plate 1121 set on the conveyor belt 112 can limit each hard drive to prevent the hard drive from leaving the conveyor belt 112. Secondly, it can control the distance between each hard drive so that the serial number of each hard drive can be photographed, which is convenient for statistical data. It also allows the designated hard drive to be demagnetized and crushed, thus improving the efficiency of hard drive processing. Furthermore, the tensioning support mechanism 113 can adjust and control the tension of the conveyor belt 112, so that each hard drive can be stably transmitted to the demagnetizer 13 for demagnetization, which greatly improves the demagnetization efficiency.

[0035] The crushing mechanism 2 includes a set of crushing blades 21 arranged in a cross and opposite manner and a drive mechanism 22 for driving the crushing blades 21. The drive mechanism 22 includes a drive motor 221, a reducer 222, a first cutter shaft 223, a drive gear 224, a driven gear 225, and a second cutter shaft 226. The drive motor 221 is connected to the first cutter shaft 223 through the reducer 222. The tail of the first cutter shaft 223 is provided with a drive gear 224, and the tail of the second cutter shaft 226 is provided with a driven gear 225 that meshes with the drive gear 224. The crushing blades 21 are provided on both the first cutter shaft 223 and the second cutter shaft 226.

[0036] The crushing tool assembly 21 includes spaced-apart blades 211 and mounting plates 212 located between the spaced-apart blades 211. The blades 211 in the crushing tool assembly 21 are arranged in an overlapping manner with a certain distance between them.

[0037] Specifically, in this embodiment, there are two sets of crushing blade groups 21 arranged opposite to each other. An mounting plate 212 is provided between adjacent blades 211 in the same set of crushing blade groups 21. The blades 211 in the oppositely arranged crushing blade groups 21 are arranged with overlapping intervals. The drive motor 221 drives the first blade shaft 223 to rotate through the reducer 222. The first blade shaft 223 drives the drive gear 224, which is located away from the reducer 222 and fixed thereon, to rotate. The drive gear 224 drives the driven gear 225 located at the tail of the second blade shaft 226 to rotate. At the same time, the crushing blade groups 21 located on the first blade shaft 223 and the second blade shaft 226 start to rotate. After being demagnetized, the hard drive enters between the opposing shredding blade groups 21. During the relative rotation of the shredding blade groups 21, the demagnetized hard drive enters the gap between the blades 211 and the mounting plate 212 of the opposing shredding blade groups 21. With the cooperation of multiple sets of blades 211 and mounting plate 212, the demagnetized hard drive is shredded.

[0038] The cutting tool 211 includes a cutting tool body 2111, a cutting edge portion 2112 arranged circumferentially around the cutting tool body 2111, and a concave-convex portion 2113 located between adjacent cutting edge portions 2112. The cutting edge portion 2112 protrudes from the cutting tool body 2111 and the concave-convex portion 2113 and is inclined inward. The concave-convex portion 2113 includes convex portions and concave portions arranged at intervals.

[0039] Specifically, the head of the blade 2112 is sharp. When it cooperates with the opposite mounting plate 212, the blade 2112 can hold the hard drive to be crushed with a fulcrum. This allows the hard drive to be crushed to quickly enter the narrow gap between the blade 211 and the mounting plate 212 as the mounting plate 212 and the blade 2112 rotate. The concave and convex parts 2113 of the blade 211 increase the friction between the blade 211 and the hard drive to be crushed, thereby improving the efficiency and speed of hard drive crushing.

[0040] The crushing mechanism 2 also includes a positioning bracket 23, which is fixed on the frame 5. The positioning bracket 23 is equipped with a bearing 231 that carries the first cutter shaft 223 and the second cutter shaft 226.

[0041] In this embodiment, the first cutter shaft 223 and the second cutter shaft 226 are as follows: Figures 7-8As shown, all are stepped shafts, but the first cutter shaft 223 and the second cutter shaft 226 that can actually realize the rotation of the crushing tool assembly 21 are both included in the protection scope of this invention. The first cutter shaft 223 includes a first stepped portion 2231 that abuts against one end bearing 231, a second stepped portion 2232 that abuts against the other end bearing 231, and a thread 2233 for fixing a nut and then for positioning the internal crushing tool assembly 21. The positioning bracket 23 is also provided with a first positioning block 232 and a second positioning block 233 located outside the bearing 231. The first positioning block 232 and the second positioning block 233 realize the fixing of the first cutter shaft 223. Correspondingly, the second cutter shaft 226 is fixed in the same way as the first cutter shaft 223.

[0042] The present invention enables the crushing of hard disks by the cooperation of the cross-arranged and opposite crushing blade group 21 and the driving crushing blade group 21. The blade part 2112 of the blade 211 cooperates with the mounting plate 212 to quickly input the hard disk to be crushed into the gap between the blade 211 and the mounting plate 212, thereby improving the efficiency of hard disk crushing.

[0043] An unmanned, automated batch demagnetization method includes the following steps: Step 1: Place the hard drive between the limiting plates 1121. The conveyor belt 112 starts and carries the hard drive into the frame 5. When the hard drive passes under the camera 121, the camera 121 takes a picture of the hard drive and transmits it to the information processing mechanism 4 for analysis, acquisition and recording of the hard drive's SN number. Step 2: If the SN number of the hard drive does not match the SN number to be destroyed, the information processing unit 4 will directly control the conveyor belt 112 to stop and manually remove the incorrectly placed hard drive. Then, a new hard drive will be placed and Step 1 will be repeated. Step 3: If the SN number of the hard drive matches the SN number to be destroyed, it will continue to be transported by the conveyor belt 112 to the demagnetizer 13 for demagnetization. At the same time, the information processing unit 4 will combine the information after the hard drive is photographed and identified with the demagnetization information and record and count it. Step 4: After demagnetization, the hard drive continues to be conveyed to the shredding mechanism 2 via the conveyor belt 112. The drive mechanism 22 drives the shredding blade assembly 21 to shred the hard drive. The shredded hard drive falls into the collection mechanism 3 below, thus completing the entire process of information collection, demagnetization, and shredding of the hard drive. Example 2:

[0044] The difference between Embodiment 2 and Embodiment 1 is that Embodiment 2 does not have a crushing mechanism 2, and the lower end of the conveyor belt 112 of the demagnetizing mechanism 1 is provided with a collection mechanism 3, which only collects and demagnetizes information from the hard drive. Example 3:

[0045] The difference between Example 3 and Example 1 is that Example 2 does not have a demagnetizing mechanism 1, and the lower end of the crushing mechanism 2 is provided with a collecting mechanism 3, which only crushes the hard drive.

[0046] Compared to Embodiment 1, Embodiments 2 and 3 of the present invention have simpler functions, but they process the hard disk more quickly and efficiently.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention; therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0048] Although this paper makes extensive use of the figure references: 1. Demagnetizing mechanism, 2. Crushing mechanism, 3. Collecting mechanism, 4. Information processing mechanism, 5. Frame, 11. Transmission mechanism, 12. Identification mechanism, 13. Demagnetizer, 21. Crushing blade assembly, 22. Drive mechanism, 23. Positioning bracket, 111. Roller, 112. Conveyor belt, 113. Tensioning support mechanism, 114. Roller drive motor, 121. Camera, 131. Demagnetizing bracket, 132. Demagnetizer body, 211. Blade, 212. Mounting plate, 221. Drive motor, 222. Reducer, 223. First cutter shaft, 224. Drive gear The terms used include: 225, driven gear; 226, second cutter shaft; 231, bearing; 232, first positioning block; 233, second positioning block; 1121, limiting plate; 1131, mounting base; 1132, bearing housing; 1133, bolt; 2111, cutter body; 2112, cutting edge; 2113, concave and convex portion; 2231, first stepped portion; 2232, second stepped portion; 2233, thread, etc., but the possibility of using other terms is not excluded; these terms are used only for the convenience of describing and explaining the essence of the invention; interpreting them as any kind of additional limitation is contrary to the spirit of the invention.

Claims

1. An unmanned, automated batch demagnetization device, characterized in that: The device includes a demagnetizing mechanism (1), a crushing mechanism (2), a collecting mechanism (3), an information processing mechanism (4), and a frame (5) that fixes the demagnetizing mechanism (1), the crushing mechanism (2), the collecting mechanism (3), and the information processing mechanism (4). The demagnetizing mechanism (1) includes a transmission mechanism (11), an identification mechanism (12), and a demagnetizer (13). The transmission mechanism (11) sequentially transmits several hard drives from the outside to the inside of the demagnetizer (13) for demagnetization. The identification mechanism (12), located above the transmission mechanism (11), can take pictures of each hard drive entering the demagnetizer (13) and transmit them to the information processing mechanism (4) for analysis and recording. The crushing mechanism (2) is located below the tail of the transmission mechanism (11) and can crush the demagnetized hard drives. The collecting mechanism (3) is located below the crushing mechanism (2) and is used to collect the crushed hard drives.

2. The unmanned automated batch demagnetization device according to claim 1, characterized in that: The transmission mechanism (11) includes a roller (111), a conveyor belt (112), and a tensioning support mechanism (113). The roller (111) is sleeved on the front and rear sides of the conveyor belt (112). A tensioning support mechanism (113) is installed on each of the left and right sides of the roller (111). The tensioning support mechanism (113) includes a mounting base (1131) and a bearing seat (1132) that can move back and forth along the length direction of the mounting base (1131) when the bolt (1133) rotates forward or backward. The mounting base (1131) is fixed on the frame (5).

3. The unmanned automated batch demagnetization device according to claim 2, characterized in that: The roller (111) on one side is connected to the roller drive motor (114) via a coupling, and the conveyor belt (112) has several limit plates (1121) that are fixed thereon by heat fusion.

4. The unmanned automated batch demagnetization device according to claim 2, characterized in that: The demagnetizer (13) includes a demagnetizing bracket (131) and a demagnetizer body (132). The demagnetizer body (132) is placed inside the demagnetizing bracket (131). The bottom of the demagnetizing bracket (131) is fixed on the frame (5). The conveyor belt (112) passes through the inside of the demagnetizer body (132).

5. The unmanned automated batch demagnetization device according to claim 2, characterized in that: The identification mechanism (12) includes a camera (121) which is fixed on the frame (5) and faces the conveyor belt (112). The camera (121) will capture the SN number of each hard drive and transmit it to the information processing mechanism (4).

6. The unmanned automated batch demagnetization device according to claim 1, characterized in that: The crushing mechanism (2) It includes a set of crushing blades (21) arranged in a cross and opposite manner and a drive mechanism (22) for driving the crushing blades (21) to move. The drive mechanism (22) includes a drive motor (221), a reducer (222), a first cutter shaft (223), a drive gear (224), a driven gear (225), and a second cutter shaft (226). The drive motor (221) drives the first cutter shaft (223) to rotate through the reducer (222). The tail of the first cutter shaft (223) is provided with a drive gear (224), and the tail of the second cutter shaft (226) is provided with a driven gear (225) that meshes with the drive gear (224). Both the first cutter shaft (223) and the second cutter shaft (226) are provided with a set of crushing blades (21).

7. The unmanned automated batch demagnetization device according to claim 6, characterized in that: The crushing tool group (21) includes spaced-apart tools (211) and a mounting plate (212) located between the spaced-apart tools (211). The tools (211) in the crushing tool group (21) are spaced-overlapping, and there is a certain distance between the tools (211) and the mounting plate (212) in the crushing tool group (21).

8. The unmanned automated batch demagnetization device according to claim 7, characterized in that: The cutting tool (211) includes a cutting tool body (2111), a cutting edge (2112) arranged circumferentially around the cutting tool body (2111), and a concave-convex portion (2113) located between adjacent cutting edge portions (2112). The cutting edge portion (2112) protrudes from the cutting tool body (2111) and the concave-convex portion (2113) and is inclined inward. The concave-convex portion (2113) includes convex portions and concave portions arranged at intervals.

9. The unmanned automated batch demagnetization device according to claim 6, characterized in that: The crushing mechanism (2) also includes a positioning bracket (23), which is fixed on the frame (5). The positioning bracket (23) is equipped with a bearing (231) that carries the first cutter shaft (223) and the second cutter shaft (226).

10. A method for unmanned, automated batch demagnetization, characterized in that, The apparatus according to any one of claims 1-9 includes the following steps: Step 1: Place the hard drive between the limiting plates (1121), the conveyor belt (112) starts and carries the hard drive into the frame (5). When the hard drive passes under the camera (121), the camera (121) takes a picture of the hard drive and transmits it to the information processing mechanism (4) for analysis, acquisition and recording of the hard drive's SN number. Step 2: If the SN number of the hard drive does not match the SN number to be destroyed, the information processing unit (4) will directly control the suspension of the conveyor belt (112) and manually remove the wrongly placed hard drive. Then, a new hard drive will be placed and Step 1 will be repeated. Step 3: If the SN number of the hard drive matches the SN number to be destroyed, it will continue to be transported by the conveyor belt (112) to the demagnetizer (13) for demagnetization. At the same time, the information processing unit (4) will combine the information after the hard drive is photographed and identified with the demagnetization information and record and count it. Step 4: After demagnetization, the hard drive continues to be conveyed to the shredding mechanism (2) via the conveyor belt (112). The drive mechanism (22) drives the shredding blade group (21) to shred the hard drive. The shredded hard drive falls into the collection mechanism (3) below, thus completing the information collection, demagnetization and shredding of the entire hard drive.

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