A heavy air management cabinet based on programmable logic controller

Abstract

The present application relates to the technical field of management cabinet, specifically, it relates to a heavy empty management cabinet based on programmable logic controller. In view of the problems of traditional heavy empty management, such as relying on manual operation, low efficiency, easy to make mistakes and poor safety, the device comprises a shell, a cover plate arranged at the opening of the side surface of the shell, a partition plate in the shell, a sealing plate fixed by a stop bolt, symmetrical lifting assemblies, and independently arranged pressing components, inspection components and storage components. The storage component is used for storing blank cards and blank files, the inspection component reads and writes the information of the magnetic stripe of the voucher through the magnetic module, and the pressing component drives the pressing wheel to improve the stability of the voucher through the lifting assembly. The device is integrated and controlled by the programmable logic controller, realizes the automatic discharge, inspection and traceability of the voucher, solves the pain points of low efficiency and insufficient safety of manual management, and has the beneficial effects of high automation, strong anti-fake performance and wide adaptability.

Description

Technical Field

[0001] This invention relates to the field of management cabinet technology, and more specifically, to a heavy-duty management cabinet based on a programmable logic controller. Background Technology

[0002] Traditional management of important blank vouchers relies on manual registration and paper ledgers, which is inefficient, prone to errors, and difficult to prevent internal risks; existing equipment lacks automated inspection and traceability mechanisms, and the reading and writing of voucher information is inaccurate.

[0003] This invention addresses these pain points by using PLC integrated control, magnetic reading and writing, and a modular structure to achieve fully automated management and intelligent traceability of vouchers, thus solving the problems of low efficiency and insufficient security in traditional methods. Summary of the Invention

[0004] The purpose of this invention is to provide a heavy air management cabinet based on a programmable logic controller to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides a heavy and empty management cabinet based on a programmable logic controller, comprising a housing, a cover plate disposed at an opening on the side of the housing, a control panel fixed to the outer surface of the cover plate, a document outlet and a card outlet penetrating the cover plate, a partition plate disposed at the center of the housing interior, a sealing plate fixedly installed on the partition plate away from the housing end by locking bolts, lifting components symmetrically disposed on both sides of the partition plate, and a pressing component, an inspection component, and a storage component independently fixed inside the housing; wherein, the storage component is used to store blank cards and blank documents, the inspection component is used to read magnetic stripe information on blank cards and blank documents, and the pressing component is used to improve the stability of vertical stacking of blank cards and blank documents.

[0006] As a further improvement to this technical solution, the pressing component includes a connecting beam fixedly connected to the lifting assembly, a docking plate vertically installed to the connecting beam via docking bolts, a vertical beam fixed to the bottom of the docking plate, and a pressing wheel set at the bottom of the vertical beam via a rotating bracket; the rolling direction of the pressing wheel is toward the through groove of the sealing plate, which is used to apply pressure to the top of the blank card and blank document and reduce the friction of the material discharge.

[0007] As a further improvement to this technical solution, the connecting beam and the docking plate are detachably connected by locking bolts, so that the height of the pressing component is adjustable; the pressing wheel is made of low-friction material to ensure that blank cards and blank documents are pressed smoothly under the drive of the lifting component.

[0008] As a further improvement to this technical solution, the inspection component includes a rotating bracket fixedly installed on the side of the through slot opening of the sealing plate, two symmetrical guide rollers rotatably installed on the side of the rotating bracket, a fixed bracket fixed to the top of the inner wall of the sealing plate, a magnetic module installed on the top of the fixed bracket, and a magnetic brush fixed to the bottom of the fixed bracket and in contact with the outer arc surface of the guide roller; the surface of the guide roller is provided with a carbonized coating for conductive connection with the magnetic stripe of blank cards and blank documents.

[0009] As a further improvement to this technical solution, the magnetic module establishes a magnetic connection with the carbonized coating of the guide roller through a magnetic brush, which is used to read the residual magnetic information on the magnetic stripe or write specific magnetic information when a blank card or blank document passes through the slot; the magnetic module operates at a frequency of .MHz and supports batch recognition and real-time data upload.

[0010] As a further improvement to this technical solution, the storage component includes a support plate fixedly connected to the bottom of the inner wall of the housing, a U-shaped limiting member detachably fixed to the top of the support plate by bolts, and an electric push rod disposed on the side of the limiting member away from the opening; the inner side wall of the limiting member contacts the side of the blank card or blank document for vertically stacking vouchers; the telescopic end of the electric push rod penetrates the side of the limiting member for pushing the voucher to slide into the through groove of the sealing plate.

[0011] As a further improvement to this technical solution, the U-shaped opening of the limiting component faces the through groove of the sealing plate, and its size can be changed according to the shape of the blank card or blank document; the height of the support plate is the same as the minimum height of the through groove to ensure smooth document dispensing.

[0012] As a further improvement to this technical solution, the management cabinet also includes a programmable logic controller (PLC). The PLC integrates a central processing unit, a digital input / output module, an analog input module, and a communication module. The communication module supports industrial Ethernet or fieldbus protocols and is used to communicate with the bank's core system or back-end management system in real time to realize automatic archiving and audit traceability of voucher retrieval records.

[0013] As a further improvement to this technical solution, it also includes a temperature and humidity sensor, a smoke alarm, and an anti-tampering detection device installed inside the housing; the environmental monitoring system is linked with the programmable logic controller, and when abnormal environmental parameters or illegal tampering are detected, it automatically triggers an audible and visual alarm and notifies the management personnel.

[0014] As a further improvement to this technical solution, the working method of the heavy-duty management cabinet includes the following steps: the user authenticates their identity through the control panel and selects the type and quantity of vouchers; the programmable logic controller controls the lifting component to drive the pressing component to organize the voucher stack, and starts the electric push rod of the storage component to push the vouchers out; when the vouchers pass through the inspection component, the magnetic module automatically reads and writes magnetic information; the vouchers are finally sent out from the document outlet or card outlet, and the operation record is uploaded to the background system at the same time.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this heavy-duty management cabinet based on a programmable logic controller, the automated magnetic information reading and writing function of the inspection components replaces the traditional manual recording and counting methods, realizing real-time digital registration of voucher entry and exit, greatly reducing the difficulty of statistics and error rate, and solving the problem of "discrepancy between accounts and actual inventory".

[0016] 2. In this heavy-duty air management cabinet based on a programmable logic controller, the entire operation is automatically completed by the PLC program within the sealed housing. Combined with the unique magnetic identification of the voucher and the traceability of operation records, it effectively prevents the risk of misappropriation or replacement by human, forming an unalterable audit trail.

[0017] 3. In this programmable logic controller-based heavy-duty management cabinet, the limiting components of the storage components are removable and replaceable, the pressing components ensure the stability of the evidence stack, and the modular design allows the equipment to flexibly adapt to different sized documents, maximizing space utilization. Attached Figure Description Figure 1 This is a schematic diagram of the overall structure assembly of the present invention; Figure 2 This is a schematic diagram of the structure of the locking bolt in this invention; Figure 3 This is a schematic diagram of the partition plate in this invention; Figure 4 This is a schematic diagram of the sealing plate in this invention; Figure 5 This is a schematic diagram of the shell structure in this invention; Figure 6 for Figure 3 Enlarged view of the structure at point A in the middle; Figure 7 for Figure 3 Enlarged view of the structure at point B in the middle; Figure 8 for Figure 4 Enlarged view of the structure at point C; Figure 9 for Figure 5 Enlarged view of the structure at point D.

[0018] The labels in the diagram represent the following: 1. Shell; 2. Cover plate; 3. Control panel; 4. Document outlet; 5. Card outlet; 6. Sealing plate; 7. Locking bolt; 8. Divider plate; 9. Lifting assembly; 10. Pressing component; 1001. Connecting beam; 1002. Butt plate; 1003. Butt bolt; 1004. Vertical beam; 1005. Rotating bracket; 1006. Pressing roller; 11. Inspection component; 1101. Rotating bracket; 1102. Guide roller; 1103. Fixed bracket; 1104. Magnetic module; 1105. Magnetic brush; 12. Storage component; 1201. Limiting component; 1202. Electric push rod; 1203. Support plate; 13. Blank card; 14. Blank document. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 Please see Figures 1-9 As shown, this embodiment provides a heavy air management cabinet based on a programmable logic controller, including a housing 1 and a cover plate 2 rotatably disposed at the side opening of the housing 1, and a control panel 3 is fixedly disposed on the outer surface of the cover plate 2; In the banking or financial industry, a large number of non-replicable documents need to be signed or unique cards need to be issued. In this process, it is usually necessary to save a large number of blank cards or blank documents in advance, and to take them out and fill in the corresponding customer information or signatures when needed. In this process, blank documents or blank cards without information need to be accurately and securely stored, because the accidental leakage of blank documents or blank cards can lead to counterfeit documents or counterfeit cards entering the market, which can cause serious incidents. Therefore, it is necessary to accurately store blank documents or blank cards.

[0021] Traditional management methods rely heavily on personnel. The effectiveness of managing important blank vouchers is closely related to the sense of responsibility, professional competence, and integrity of the specific personnel handling the tasks and managers. If employee behavior management is inadequate, such as perfunctory investigations into abnormal employee behavior or failure to monitor employee behavior both during and outside of working hours, it will be difficult to effectively prevent risks. Furthermore, traditional management methods have shortcomings in technology application, affecting efficiency and security. The management of important blank vouchers relies heavily on manual recording, paper ledgers, and manual counting and verification. This method is not only inefficient and consumes a lot of time and manpower, but it is also prone to discrepancies between the ledger and the actual voucher due to clerical errors, omissions, or unclear records, resulting in a huge workload for verification. To solve the problems existing in the traditional important blank voucher preservation process, the cover plate 2 is provided with a document outlet 4 and a card outlet 5. A partition plate 8 is fixedly installed in the center of the housing 1. A sealing plate 6 is fixedly installed at the end of the partition plate 8 away from the housing 1 by a locking bolt 7. The sealing plate 6 is provided with a through groove corresponding to the document outlet 4 and the card outlet 5. Inside the housing 1, lifting components 9 are symmetrically arranged on both sides of the partition plate 8. Inside the housing 1, pressing components 10, inspection components 11, and storage components 12 are independently fixed on both sides. The storage component 12 is used to store blank cards 13 and blank documents 14. The pressing component 10 is used to press the blank cards 13 and blank documents 14 downwards to keep them in a neatly stored state. The inspection component 11 is used to inspect and record the blank cards 13 and blank documents 14 when they are discharged.

[0022] This device achieves automatic registration of blank cards 13 and blank documents 14 by reading and recording their magnetic information during the process of passing them in and out. This reduces the difficulty of statistics and effectively improves the accuracy of information preservation.

[0023] To ensure that the above structure can achieve the effect of reading and registering unique information on blank cards 13 and blank documents 14, the principle of reading and registering magnetic unique information needs to be disclosed: The registration of information, often referred to as the "magnetic writing" process, essentially involves converting the information to be recorded (such as numbers or characters) into a specific magnetization state on a magnetic medium. This process first converts the information into binary code using an encoder, which then generates a series of changing electrical signal pulses. Reading information, or "magnetic reading," is the reverse process of writing. When the magnetic medium that has already recorded information passes through the read head at a constant speed, the weak remanent magnetic field generated by the various magnetized regions on the medium cuts the iron core of the read head. Due to the electromagnetic induction effect, this causes a change in the magnetic flux inside the read head coil, thereby generating a weak induced current (or voltage) in the coil.

[0024] The changing pattern of this induced electrical signal corresponds perfectly to the magnetization state of the medium. Subsequently, this weak electrical signal is amplified by an amplifier and then decoded by a specialized decoder, ultimately allowing the original recorded binary information to be recovered and the information to be read.

[0025] Based on the actual structure of the blank card 13 and the blank document 14, and the above-mentioned principle of reading and writing magnetic unique information, the blank card 13 and the blank document 14 are provided with magnetic stripes. The inspection component 11 reads and writes the words set on the surface of the blank card 13 and the blank document 14 to achieve unique marking of each blank card 13 and blank document 14, and archives and records the unique marking information.

[0026] In order to achieve the effect of writing and reading magnetic stripe information on blank cards 13 and blank documents 14, the specific structure of the inspection component 11 also needs to be disclosed: Among them, the inspection component 11 includes a rotating bracket 1101 fixedly installed on the side of the opening of the through groove of the sealing plate 6, and two guide rollers 1102 symmetrically installed on both sides of the through groove are rotatably installed on the side of the rotating bracket 1101. Specifically, the guide roller 1102 has a carbonized coating on its surface, which is conductive; the carbonized coating structure enables the magnetic stripe information on the surface of the blank card 13 and blank document 14 to be read during the process of the blank card 13 and blank document 14 being discharged from the inside of the channel. Furthermore, the inspection component 11 also includes a fixed bracket 1103 that is fixedly connected to the inner sidewall of the sealing plate 6 at the top directly above the through groove. A magnetic module 1104 is fixedly installed on the top of the fixed bracket 1103, and a magnetic brush 1105 is fixedly installed on the bottom of the fixed bracket 1103. An arc-shaped groove is provided at the bottom of the magnetic brush 1105, and the bottom of the magnetic brush 1105 contacts the outer arc surface of the guide roller 1102. The magnetic brush 1105 ensures that the carbonized coating on the surface of the magnetic module 1104 and the guide roller 1103 are electrically connected. When the carbonized coating comes into contact with the surface of the magnetic strip, the magnetic module 1104 and the magnetic strip are connected by the carbonized coating and the magnetic brush 1105, thereby realizing the effect of reading information between the module 1104 and the magnetic strip. At the same time, when it is necessary to write magnetic information, this stage can also generate a directional magnetic field through the module 1104 to write specific information into the magnetic strip.

[0027] To ensure that the blank card 13 and blank document 14 are stably stored inside the housing 1, the specific structure of the pressing component 10 and the storage component 12 also needs to be disclosed: The pressing component 10 includes a connecting beam 1001 fixedly connected to the lifting assembly 9. A connecting plate 1002 is fixedly installed at the end of the connecting beam 1001 away from the lifting assembly 9 by a locking bolt 1003. The connecting plate 1002 is installed perpendicularly to the connecting beam 1001. A vertical beam 1004 is fixedly provided at the bottom of the connecting plate 1002. The combination of connecting beam 1001 and vertical beam 1004 enables the lifting component 9 to drive the connecting beam 1001 and the blowing mass 1004 to move up and down and slide. A rotating bracket 1005 is fixedly installed at the bottom of the vertical beam 1004. A pressing wheel 1006 is rotatably installed at the bottom of the rotating bracket 1005. The rolling direction of the pressing wheel 1006 is towards the through groove of the sealing plate 6. The tops of the blank cards 13 and blank documents 14 are pressed by the pressing roller 1006, thereby fixing the tops of the vertically stacked blank cards 13 and blank documents 14 and preventing them from tipping over. At the same time, during the discharge of the blank cards 13 and blank documents 14, the structure of the pressing roller 1006 can reduce the friction between the blank cards 13 and blank documents 14 and the pressing roller 1006, thereby ensuring a stable and accurate discharge process.

[0028] Storage component 12 includes a support plate 1203 fixedly connected to the bottom of the inner wall of housing 1. The top of the support plate 1203 is detachably fixedly connected to a limiting member 1201 by bolts. The limiting member 1201 is U-shaped. Specifically, the opening of the limiting member 1201 faces the through groove of the sealing plate 6, the height of the support plate 1203 is the same as the lowest height of the through groove, and the blank cards 13 and blank documents 14 are vertically stacked inside the limiting member 1201, with the inner sidewall of the limiting member 1201 in contact with the sides of the blank cards 13 and blank documents 14; the blank cards 13 and blank documents 14 can be disassembled and replaced at the top of the support plate 1203 according to their specific shapes, thereby achieving the effect of targeted adjustment for different materials.

[0029] Storage component 12 includes an electric push rod 1202 fixedly disposed on the side of the limiting member 1201 away from the opening. The telescopic end of the electric push rod 1202 passes through the side of the limiting member 1201 and contacts the side of the blank card 13 and the blank document 14. The electric push rod 1202 can push the blank card 13 and blank document 14 to discharge, thereby achieving the effect of automated discharge and making the blank card 13 and blank document 14 contact the inspection component 11.

[0030] The programmable logic controller (PLC) directs the coordinated operation of various mechanical components to achieve intelligent storage, accurate retrieval, and identity information registration of blank cards 13 and blank documents 14. The entire process begins with secure storage and organization. Blank vouchers are vertically stacked within the limiting member 1201 of the storage component 12, and the U-shaped structure of the limiting member 1201 provides stable lateral support. To ensure that the stacked vouchers are neat and orderly and to prevent tilting during storage and retrieval, the pressing component 10, driven by the lifting assembly 9, plays a crucial role. The connecting beam 1001 and the vertical beam 1004, driven by the lifting assembly 9, continuously apply appropriate pressure to the top of the voucher stack using the pressing rollers 1006 at the bottom. When a user issues a retrieval command via the control panel 3 fixed to the cover plate 2, the workflow enters the automated unloading and inspection stage. Upon receiving the command, the PLC first activates the electric push rod 1202 corresponding to the target storage unit. Its telescopic end pushes the outermost document in the stack, allowing it to slide smoothly into the corresponding slot on the sealing plate 6. During the movement of the document, the pre-set magnetic strip on its surface passes through the inspection component 11. This component is crucial for achieving document uniqueness management. The document first passes through a pair of symmetrically arranged guide rollers 1102, whose carbonized coating is conductive. The magnetic module 1104, located directly above the through slot, establishes a magnetic connection with the guide roller 1102 via the magnetic brush 1105, thus forming a complete magnetic circuit the instant the magnetic strip of the voucher passes through. At this time, the magnetic module 1104 performs two operations: first, reading, by detecting changes in the residual magnetic field on the magnetic strip, converting it into an electrical signal through the principle of electromagnetic induction, and then decoding it to obtain the unique identification information of the voucher for use in warehouse registration and verification; second, writing, as needed, the PLC controls the magnetic module 1104 to generate a specific directional magnetic field to write information onto the magnetic strip, such as updating the voucher status or writing a timestamp. After inspection, the voucher continues to move along the channel and is eventually sent out from document outlet 4 or card outlet 5. At the same time, the PLC has uploaded the key information of this operation (such as the unique voucher code, outbound time, operator information, etc.) to the background management system through the communication module to complete the digital archiving.

[0031] This device represents a revolutionary improvement in management efficiency and accuracy. The traditional method of relying on manual counting and paper-based registration is not only inefficient but also prone to discrepancies between records and actual inventory due to clerical errors or omissions. This device fundamentally solves this problem through the automated information reading and writing function of the inspection component 11. When blank cards 13 or blank documents 14 are issued, their magnetic stripe information is automatically read and registered by the magnetic module 1104. This process is accurate and fast, requiring no manual intervention, greatly reducing statistical difficulty and error rates, and enabling real-time digital tracking of voucher circulation. Secondly, the management cabinet incorporates multiple safeguards for security and controllability. Firstly, storage and retrieval operations are entirely automated and controlled by a PLC program within the sealed housing 1, with authorization granted via the control panel 3, effectively preventing the risk of misappropriation or replacement that could result from human intervention. Secondly, each voucher is assigned a unique magnetic identification via verification component 11, and all inbound and outbound operations are recorded by the system, creating an unalterable audit trail that greatly enhances security, anti-counterfeiting capabilities, and post-event traceability. Finally, the device demonstrates a high degree of optimization and flexibility in terms of space utilization and adaptability. The design of the storage component 12 is key; the limiting member 1201 on the support plate 1203 can be disassembled and replaced according to different sizes of vouchers. This modular design allows a single unit to flexibly adapt to various business needs. Simultaneously, the pressing rollers 1006 of the pressing component 10 ensure the stability of the evidence stack, avoiding jams or space waste caused by uneven stacking, thereby maximizing storage capacity and management efficiency within a limited space.

[0032] Example 2 Please see Figures 1-9 As shown, this embodiment provides a heavy-duty air conditioning management cabinet based on a programmable logic controller, including a method of using the management cabinet, comprising the following steps: The user first approaches the air conditioning management cabinet and faces the control panel 3, which is fixed to the outer surface of the cover plate 2. The control panel 3 serves as the human-machine interface and is typically equipped with a touchscreen or buttons. The user needs to enter their employee ID, password, or undergo biometric identification (such as fingerprint or iris scanning; although the biometric module is not explicitly stated in the manual, this is a reasonable extension based on the integration capabilities of the programmable logic controller) to complete identity verification. After successful verification, the system authorizes the user's access, and the control panel 3 displays the main operation menu. This step ensures that only authorized personnel can operate the equipment, preventing unauthorized access. After logging in, the user selects the type of voucher (blank card 13 or blank document 14) and quantity to be retrieved via the menu on control panel 3. The internal structure of the device uses partition 8 to divide the storage area into two symmetrical parts, storing cards and documents respectively. After the user selects, the programmable logic controller (PLC) will automatically identify the target storage unit. Control panel 3 may provide a preview function, displaying the remaining number or status of vouchers to facilitate user decision-making. After confirming the selection, the user clicks the "Retrieve" command. After the user command is transmitted to the PLC via the control panel 3, the equipment starts the automated process. First, the PLC controls the lifting assembly 9 to drive the pressing roller 1006 of the pressing component 10 to apply pressure to the top of the voucher stack, ensuring that the blank cards 13 or blank documents 14 remain neatly arranged within the limiting member 1201 of the storage component 12, preventing them from tipping over. Subsequently, the electric push rod 1202 actuates, pushing the outermost voucher into the through slot of the sealing plate 6. This process is fully automatic, requiring no user intervention; the user only needs to wait for the materials to be discharged. During the movement of the voucher, its surface magnetic stripe passes through inspection component 11. The carbonized coating of guide roller 1102 contacts the magnetic stripe, and magnetic module 1104 establishes a magnetic circuit through magnetic brush 1105, automatically reading the voucher's unique magnetic information (such as code or status) or writing new information (such as outbound timestamp) as needed. PLC processes this data in real time to ensure accurate registration of voucher identity and uploads it to the backend system. This step is completed in milliseconds, imperceptible to the user, but ensures the traceability of the operation. After passing through the sluice, the voucher is sent out from the document outlet 4 or the card outlet 5. The user retrieves the voucher from the outlet, and the control panel 3 may display a "Successful Operation" message, along with a summary of the operation (such as voucher code and time). After confirming receipt, the user can click "Complete" to exit the system. The equipment automatically resets, and the pressing component 10 and storage component 12 return to standby mode, ready for the next operation. After the operation is completed, the PLC automatically uploads the retrieval record (including user information, voucher details, and timestamp) to the bank's or enterprise's core management system via the communication module, generating a digital audit trail. Users do not need to register manually, reducing paperwork. If any abnormality occurs during the operation (such as voucher delay), the control panel 3 will display an alarm, prompting the user to contact the administrator.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty management cabinet based on a programmable logic controller, comprising a housing (1), a cover plate (2) disposed at an opening on the side of the housing (1), a control panel (3) fixed to the outer surface of the cover plate (2), a document outlet (4) and a card outlet (5) penetrating the cover plate (2), a partition plate (8) disposed at the center inside the housing (1), a sealing plate (6) fixedly installed on the end of the partition plate (8) away from the housing (1) by locking bolts (7), and lifting components (9) symmetrically disposed on both sides of the partition plate (8), characterized in that: The pressing component (10), the inspection component (11), and the storage component (12) are each independently fixed inside the housing (1). The storage component (12) is used to store blank cards (13) and blank documents (14), the inspection component (11) is used to read the magnetic stripe information on the blank cards (13) and blank documents (14), and the pressing component (10) is used to improve the stability of the vertical stacking of blank cards (13) and blank documents (14).

2. The heavy-duty air conditioning management cabinet based on a programmable logic controller according to claim 1, characterized in that: The pressing component (10) includes a connecting beam (1001) fixedly connected to the lifting assembly (9), a docking plate (1002) vertically installed to the connecting beam (1001) by a docking bolt (1003), a vertical beam (1004) fixed to the bottom of the docking plate (1002), and a pressing wheel (1006) set at the bottom of the vertical beam (1004) by a rotating bracket (1005); the rolling direction of the pressing wheel (1006) is toward the through groove of the sealing plate (6), which is used to apply pressure to the top of the blank card (13) and the blank document (14) and reduce the discharge friction.

3. The heavy-duty air conditioning management cabinet based on a programmable logic controller according to claim 2, characterized in that: The connecting beam (1001) and the docking plate (1002) are detachably connected by locking bolts (1003) to achieve height adjustment of the pressing component (10); the pressing wheel (1006) is made of low friction material to ensure smooth pressing of blank cards (13) and blank documents (14) under the drive of the lifting component (9).

4. The heavy-duty air conditioning management cabinet based on a programmable logic controller according to claim 3, characterized in that: The inspection component (11) includes a rotating bracket (1101) fixedly disposed on the side of the through slot opening of the sealing plate (6), two symmetrical guide rollers (1102) rotatably disposed on the side of the rotating bracket (1101), a fixed bracket (1103) fixedly disposed on the top of the inner wall of the sealing plate (6), a magnetic module (1104) disposed on the top of the fixed bracket (1103), and a magnetic brush (1105) fixedly disposed on the bottom of the fixed bracket (1103) and in contact with the outer arc surface of the guide roller (1102); the surface of the guide roller (1102) is provided with a carbonized coating for conductive connection with the magnetic stripe of the blank card (13) and the blank document (14).

5. The heavy-duty air conditioning management cabinet based on a programmable logic controller according to claim 4, characterized in that: The magnetic module (1104) establishes a magnetic connection with the carbonized coating of the guide roller (1102) through the magnetic brush (1105), and is used to read the residual magnetic information on the magnetic strip of the blank card (13) or blank document (14) when it passes through the slot or to write specific magnetic information. The magnetic module (1104) operates at a frequency of 13.56MHz and supports batch recognition and real-time data upload.

6. The heavy-duty air conditioning management cabinet based on a programmable logic controller according to claim 5, characterized in that: The storage component (12) includes a support plate (1203) fixedly connected to the bottom of the inner wall of the housing (1), a U-shaped limiting member (1201) detachably fixed to the top of the support plate (1203) by bolts, and an electric push rod (1202) disposed on the side of the limiting member (1201) away from the opening; the inner side wall of the limiting member (1201) contacts the side of the blank card (13) or blank document (14) for vertically stacking vouchers; the telescopic end of the electric push rod (1202) penetrates the side of the limiting member (1201) for pushing the voucher to slide into the through groove of the sealing plate (6).

7. The heavy-duty air conditioning management cabinet based on a programmable logic controller according to claim 6, characterized in that: The U-shaped opening of the limiting member (1201) faces the through groove of the sealing plate (6), and its size can be changed according to the shape of the blank card (13) or blank document (14); the height of the support plate (1203) is the same as the minimum height of the through groove to ensure smooth document output.

8. The heavy-duty air conditioning management cabinet based on a programmable logic controller according to claim 7, characterized in that: The management cabinet also includes a programmable logic controller (PLC), which integrates a central processing unit, a digital input / output module, an analog input module, and a communication module. The communication module supports industrial Ethernet or fieldbus protocols and is used to communicate with the bank's core system or back-end management system in real time to achieve automatic archiving and audit traceability of voucher retrieval records.

9. The heavy-duty air conditioning management cabinet based on a programmable logic controller according to claim 8, characterized in that: It also includes a temperature and humidity sensor, a smoke alarm and an anti-tampering detection device installed inside the housing (1); the environmental monitoring system is linked with the programmable logic controller, and when abnormal environmental parameters or illegal tampering are detected, it automatically triggers an audible and visual alarm and notifies the management personnel.

10. The heavy-duty air conditioning management cabinet based on a programmable logic controller according to claim 9, characterized in that: The working method of the heavy-duty management cabinet includes the following steps: the user authenticates and selects the type and quantity of vouchers through the control panel (3); the programmable logic controller controls the lifting component (9) to drive the pressing component (10) to organize the voucher stack, and starts the electric push rod (1202) of the storage component (12) to push the vouchers out; when the vouchers pass through the inspection component (11), the magnetic module (1104) automatically reads and writes the magnetic information; the vouchers are finally sent out from the document outlet (4) or card outlet (5), and the operation record is uploaded to the background system at the same time.

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