Practical training examination system and practical training examination method for rolling equipment safety maintenance listing

Abstract

The invention discloses a rolling equipment safety maintenance listing practical training assessment system and a practical training assessment method. The problem that rolling equipment safety maintenance listing operation practical training and assessment are lack of an integrated'three-party confirmation 'process intelligent practical training system is effectively solved. The rolling equipment safety maintenance listing practical training assessment system is formed by arranging the associated operation table, the power distribution cabinet, the rolling equipment and the like, the corresponding practical training assessment method is matched, a three-in-one mode of entity operation, virtual feedback and intelligent management and control is adopted, the forced operation sequence is achieved, the standard process of manual omission is reduced, and the practical training assessment efficiency is improved. The system achieves the dynamic simulation of accident consequences, improves the risk perception enhancement of safety awareness, achieves the automatic scoring and step judgment of a control system, saves the examination time, and improves the training efficiency.

Description

Technical Field

[0001] The present application belongs to the field of industrial equipment safety maintenance training and assessment, and specifically relates to a training and assessment system and training and assessment method for roller pressing equipment safety maintenance. Background Art

[0002] Currently, there is a general lack of intelligent training systems that integrate the "three-party confirmation" process for practical training and assessment of safety inspection and maintenance personnel (production, inspection, and maintenance) for domestic industrial equipment (such as roller presses). Enterprises often rely on theoretical training, which makes it difficult to replicate real-world operational procedures, interlocking controls, and operational action signal confirmation. For example, failure to follow the "tag-out" and "tag-out" procedures can lead to the accidental start-up of roller press equipment, resulting in mechanical injuries or electric shock accidents. Alternatively, subjective factors such as a sense of luck and carelessness among the three parties can exacerbate risks, and violations may trigger safety accidents. Therefore, it is necessary to design a practical training and assessment system and training and assessment method for safety inspection and maintenance of roller presses. This system can replicate the actual scenarios of the operating console, power distribution cabinet, and roller press equipment, and enable practical training and assessment of the three parties involved in the operation of shutdown, power off, tag-out and tag-out, power supply, and resumption of production. Summary of the Invention

[0003] The present application provides a training and assessment system and method for roller pressing equipment safety inspection and hanging sign operation training, which effectively solves the problem that the roller pressing equipment safety inspection and hanging sign operation training and assessment lacks an intelligent training system with an integrated "three-party confirmation" process.

[0004] The present application provides a system for practical training and assessment of safety inspection and maintenance of rolling equipment, including a power distribution cabinet, an operating table and rolling equipment.

[0005] The power distribution cabinet includes a PLC and the upper roller main power switch, upper roller operating power switch, lower roller main power switch, lower roller operating power switch, adjustment roller main power switch, adjustment roller operating power switch, upper roller power sign position sensor, lower roller power sign position sensor, adjustment roller power sign position sensor and emergency stop control relay which are electrically connected to the PLC respectively.

[0006] The operating console includes a training console operation permission indicator light electrically connected to the emergency stop control relay, and an upper roller main power indicator light, an upper roller control power indicator light, a lower roller main power indicator light, a lower roller control power indicator light, an adjustment roller main power indicator light, an adjustment roller control power indicator light, a test light button, an operation error sound and light indicator, an emergency stop button, an upper roller safety switch indicator light, a lower roller safety switch indicator light, an adjustment roller safety switch indicator light, an upper roller safety latch indicator light, a lower roller safety latch indicator light, an upper roller running indicator light, a lower roller running indicator light, an adjustment roller running indicator light, an upper roller run / stop switch, a lower roller run / stop switch, an adjustment roller run / stop switch, a training operation / assessment switch, an operating console nameplate position sensor and a touch screen; the training operation / assessment switch is a three-position rotary switch, including a stop position, a training start position and an assessment start position; the upper roller run / stop switch, the lower roller run / stop switch and the adjustment roller run / stop switch are all two-position rotary switches, including a stop position and a start position.

[0007] The rolling equipment includes an upper roller provided with an upper roller safety pin hole, a lower roller provided with a lower roller safety pin hole and an adjustment roller; the upper roller end is connected to the upper roller motor through a reducer, and the upper roller safety pin hole, the upper roller motor and the reducer connected to the upper roller motor are respectively provided with an upper roller safety pin position sensor electrically connected to the PLC, an upper roller simulation indicating device, an upper roller hanging position sensor and an upper roller safety switch; the lower roller end is connected to the lower roller motor through a reducer, and the lower roller safety pin hole, the lower roller motor and the reducer connected to the lower roller motor are respectively provided with a lower roller safety pin position sensor electrically connected to the PLC, a lower roller simulation indicating device, a lower roller hanging position sensor and a lower roller safety switch; the adjustment roller end is connected to the adjustment roller motor through a reducer, and the adjustment roller motor and the reducer connected to the adjustment roller motor are respectively provided with an adjustment roller simulation indicating device, an adjustment roller hanging position sensor and an adjustment roller safety switch electrically connected to the PLC.

[0008] Furthermore, the touch screen is connected to the PLC via a communication cable; the power distribution cabinet and the operating table are respectively provided with a plurality of wiring terminals, and the rolling equipment is provided with a machine-side junction box with a plurality of wiring terminals.

[0009] The upper roller main power switch, upper roller operating power switch, lower roller main power switch, lower roller operating power switch, adjustment roller main power switch, adjustment roller operating power switch, upper roller power sign position sensor, lower roller power sign position sensor and adjustment roller power sign position sensor in the power distribution cabinet are respectively connected to the corresponding input ports of the PLC through control cables and corresponding wiring terminals.

[0010] The test light button, emergency stop button, upper roller run / stop switch, lower roller run / stop switch, adjustment roller run / stop switch, training operation / assessment switch and operating table sign position sensor on the operating console are connected to the corresponding input ports of the PLC through control cables and corresponding wiring terminals.

[0011] The upper roller main power indicator light, upper roller control power indicator light, lower roller main power indicator light, lower roller control power indicator light, adjustment roller main power indicator light, adjustment roller control power indicator light, operation error sound and light indicator, upper roller safety switch indicator light, lower roller safety switch indicator light, adjustment roller safety switch indicator light, upper roller safety latch indicator light, lower roller safety latch indicator light, upper roller operation indicator light, lower roller operation indicator light and adjustment roller operation indicator light on the operating table are respectively connected to the corresponding output ports of the PLC through control cables and corresponding wiring terminals.

[0012] The upper roller safety pin position sensor, upper roller tag position sensor, upper roller safety switch, lower roller safety pin position sensor, lower roller tag position sensor, lower roller safety switch, adjustment roller tag position sensor and adjustment roller safety switch of the rolling equipment are respectively connected to the corresponding input ports of the PLC through control cables and corresponding wiring terminals.

[0013] The upper roller simulation indicating device, the lower roller simulation indicating device and the adjustment roller simulation indicating device of the rolling equipment are respectively connected to the corresponding output ports of the PLC through control cables and corresponding wiring terminals;

[0014] The coil of the emergency stop control relay is connected to the corresponding output port of the PLC through the control cable and the corresponding terminal block, and the normally open contact of the emergency stop control relay is connected in series with the operation permission indicator light of the training platform.

[0015] Furthermore, it also includes an AC power supply, which includes an AC220V AC power supply and an isolation transformer connected to the AC220V AC power supply through an automatic switch. The isolation transformer is connected to a driving power supply, which is respectively connected to the PLC, the touch screen and the components connected to the output ports of the PLC and provides power.

[0016] Furthermore, the PLC uses Mitsubishi FX2N-128MR-001. Upper roller main power switch auxiliary normally open point output side, lower roller main power switch auxiliary normally open point output side, adjustment roller main power switch auxiliary normally open point output side, upper roller operation power switch auxiliary normally open point output side, lower roller operation power switch auxiliary normally open point output side, adjustment roller operation power switch auxiliary normally open point output side, upper roller run / stop switch normally open point output side, lower roller run / stop switch normally open point output side, adjustment roller run / stop switch normally open point output side, test light button normally open point output side, emergency stop button normally closed point output side, upper roller safety switch normally open point output side, lower roller safety switch normally open point output side, adjustment roller safety switch normally open point output side, upper roller safety latch position sensor normally open point output side, lower roller safety latch position sensor normally open point output side, upper roller power tag position sensor normally open point output side, lower roller power tag position sensor normally open point output side , the normally open output side of the adjustment roller power supply hanging position sensor, the normally open output side of the upper roller hanging position sensor, the normally open output side of the lower roller hanging position sensor, the normally open output side of the adjustment roller hanging position sensor and the normally open output side of the operating table hanging position sensor are respectively connected to the PLC input ports X3, X4, X5, X11, X12, X13, X17, X20, X21, X22, X23, X33, X34, X35, X36, X37, X40, X41, X42, X43, X44, X45 and X46; the normally open output side of the training operation / assessment switch is respectively connected to the PLC input ports X50 and X51; the normally open input side or normally closed input side of the above components are connected in parallel and connected to the PLC input port COM point;

[0017] The driving power supply is a DC24V power supply, and its 24+ terminal is connected to the COM point of the PLC output port; the PLC output ports Y3, Y4, Y5, Y11, Y12, Y13, Y16, Y43, Y44 and Y22 are respectively connected to the upper roller main power indicator input terminal, the lower roller main power indicator input terminal, the adjustment roller main power indicator input terminal, the upper roller control power indicator input terminal, the lower roller control power indicator input terminal, the adjustment roller control power indicator input terminal, the operation error sound and light indicator input terminal, the upper roller safety latch indicator input terminal, the lower roller safety latch indicator input terminal and the emergency stop control relay coil input terminal; the PLC output port Y24 is respectively connected to the upper roller operation indicator and the upper roller simulation indicator device input terminal; the PLC output port Point Y25 is connected to the lower roller operation indicator light and the input end of the lower roller simulation indication device respectively; point Y26 of the PLC output port is connected to the adjustment roller operation indicator light and the input end of the adjustment roller simulation indication device respectively; point Y40 of the PLC output port is connected to the upper roller safety switch indicator light and the input end of the upper roller simulation indication device respectively; point Y41 of the PLC output port is connected to the lower roller safety switch indicator light and the input end of the lower roller simulation indication device respectively; point Y42 of the PLC output port is connected to the adjustment roller safety switch indicator light and the input end of the adjustment roller simulation indication device respectively; the 24- end of the drive power supply is connected in parallel with the output ends of the above-mentioned indicator lights, indicators, indicating devices and coils; the 24+ end of the drive power supply, the normally open contact of the emergency stop control relay, the operation permission indicator light and the 24- end of the drive power supply are connected in sequence.

[0018] The present application provides a training and assessment method for a roller-pressing equipment safety maintenance and tag-out training and assessment system. The training and assessment method includes a training mode and an assessment mode. Both modes include simulations by the inspection party, the maintenance party and the production party to complete the tag-out operations and the tag-out operations during the roller-pressing equipment safety maintenance in sequence.

[0019] Before operation, the actual operating status of the rolling equipment is simulated through the rolling equipment safety inspection and listing training system, namely: the PLC in the power distribution cabinet is in operation; the upper roller main power switch, upper roller operation power switch, lower roller main power switch, lower roller operation power switch, adjustment roller main power switch and adjustment roller operation power switch are all in closed state; the emergency stop control relay is in working state; the upper roller main power indicator light, upper roller control power indicator light, lower roller main power indicator light, lower roller control power indicator light, adjustment roller main power indicator light and adjustment roller control power indicator light on the operating table are in the light state; the operation error sound and light indicator is in the sound and light alarm non-action state; the upper roller safety switch indicator light, lower roller safety switch indicator light, adjustment roller safety switch The indicator light, upper roller safety latch indicator light and lower roller safety latch indicator light are off; the upper roller operation indicator light, lower roller operation indicator light and adjustment roller operation indicator light are on; the upper roller operation / stop switch, lower roller operation / stop switch and adjustment roller operation / stop switch are all in the start position; the training operation / assessment switch is in the stop position; the touch screen displays the operating status of the entire system in real time; the operation permission indicator light is off; the emergency stop button is closed; the upper roller simulation indicator device, lower roller simulation indicator device and adjustment roller simulation indicator device on the rolling equipment are in the red light and buzzer sounding state, simulating the operating status of the upper roller, lower roller and adjustment roller; the upper roller safety switch, lower roller safety switch and adjustment roller safety switch are in the disconnected state;

[0020] When the training mode is selected, operate the training operation / assessment switch to the training start position, and the operation indicator light is lit through the PLC control; when the assessment mode is selected, operate the training operation / assessment switch to the assessment start position, and the operation indicator light is lit through the PLC control.

[0021] When listing, the steps are as follows:

[0022] S1. The maintenance party simulates accepting the maintenance task of the roller pressing equipment from the inspection party;

[0023] S2. The inspection party, maintenance party and production party simulate on-site safety briefing to confirm the maintenance items;

[0024] S3. The manufacturer operates the switches on the operating table and stops the machine in sequence, as follows:

[0025] S3.1. The manufacturer operates the adjustment roller run / stop switch to the stop position, controls the adjustment roller run indicator light to turn off through the PLC, and simultaneously controls the adjustment roller simulation indicator device to turn off the red light and stop the buzzer, stops the simulated adjustment roller motor, and controls the touch screen to display the above status simultaneously;

[0026] S3.2. The manufacturer operates the lower roller run / stop switch to the stop position, controls the lower roller run indicator light to turn off through the PLC, and simultaneously controls the lower roller simulation indicator device to turn off the red light and stop the buzzer, simulates the lower roller motor to stop running, and controls the touch screen to display the above status simultaneously;

[0027] S3.3. The manufacturer operates the upper roller run / stop switch to the stop position, controls the upper roller run indicator light to turn off through the PLC, and simultaneously controls the upper roller simulation indicator device to turn off the red light and stop the buzzer, stops the simulated upper roller motor from running, and controls the touch screen to display the above status simultaneously;

[0028] S4. The manufacturer hangs a "Stop Sign" at the position corresponding to the sign position sensor on the operation table, triggering the sign position sensor to receive a signal and transmit the signal to the PLC, which controls the touch screen to synchronously display the above status;

[0029] S5. The production party points and sings: "The operation table has been shut down and the sign is on", informing the inspection party and the maintenance party;

[0030] S6. The inspection party confirms the tag content and completes the power outage and tag operation in sequence in the power distribution cabinet. The specific steps are as follows:

[0031] S6.1. The inspector turns off the upper roller operating power switch, controls the upper roller control power indicator light to go out through the PLC, and synchronously controls the touch screen to display the above status;

[0032] S6.2. The inspection party turns off the main power switch of the upper roller, controls the upper roller main power indicator light to turn off through the PLC, and synchronously controls the touch screen to display the above status;

[0033] S6.3. The inspector shall hang a "power outage sign" at the position corresponding to the upper roller power sign position sensor on the power distribution cabinet. After the sign is hung correctly, the upper roller power sign position sensor is triggered to receive a signal and transmit the signal to the PLC, which controls the touch screen to display the above status;

[0034] S6.4. The inspector turns off the lower roller operating power switch, controls the lower roller control power indicator light to go out through the PLC, and synchronously controls the touch screen to display the above status;

[0035] S6.5. The inspection party turns off the main power switch of the lower roller, controls the PLC to turn off the main power indicator of the lower roller, and synchronously controls the touch screen to display the above status;

[0036] S6.6. The inspector shall hang a "power outage sign" at the position corresponding to the lower roller power sign position sensor on the power distribution cabinet. Once the sign is correctly hung, the lower roller power sign position sensor is triggered to receive a signal and transmit the signal to the PLC, which controls the touch screen to display the above status.

[0037] S6.7. The inspector turns off the power switch of the adjustment roller, controls the power indicator of the adjustment roller through the PLC to turn off, and simultaneously controls the touch screen to display the above status;

[0038] S6.8. The inspector turns off the main power switch of the adjustment roller, controls the main power indicator of the adjustment roller through the PLC to turn off, and synchronously controls the touch screen to display the above status;

[0039] S6.9. The inspector shall hang a "power outage sign" at the position corresponding to the power sign position sensor of the adjusting roller on the power distribution cabinet. Once the sign is correctly hung, the power sign position sensor of the adjusting roller is triggered to receive a signal and transmit the signal to the PLC, which controls the touch screen to display the above status.

[0040] S7. The inspection party shall indicate: "The power distribution cabinet has been shut down and the sign has been posted," and inform the production party and the maintenance party;

[0041] S8. The maintenance party confirms the contents of the tag and completes the safety interlock operation and tags in sequence beside the roller press. The specific steps are as follows:

[0042] S8.1. The maintenance party closes the safety switch of the adjusting roller, controls the PLC to light up the green light of the adjusting roller analog indicator device, simultaneously controls the indicator light of the adjusting roller safety switch, and controls the touch screen to display the above status simultaneously;

[0043] S8.2. The maintenance party hangs a "power outage sign" at the position corresponding to the sign position sensor of the adjustment roller. After the sign is correctly hung, the sign position sensor of the adjustment roller is triggered to receive a signal and transmit the signal to the PLC, which controls the touch screen to display the above status;

[0044] S8.3, the maintenance party closes the upper and lower roller safety switches, controls the lower roller simulation indicator device to light up green through the PLC, controls the lower roller safety switch indicator light to light up synchronously, and controls the touch screen to display the above status synchronously;

[0045] S8.4. The maintenance party hangs a "power outage sign" at the position corresponding to the lower roller sign position sensor. After the sign is correctly hung, the lower roller sign position sensor is triggered to receive a signal and transmit the signal to the PLC, which controls the touch screen to display the above status;

[0046] S8.5. The maintenance party closes the upper roller safety switch, controls the upper roller simulation indicator device to light up green through the PLC, controls the upper roller safety switch indicator light to light up simultaneously, and controls the touch screen to display the above status simultaneously;

[0047] S8.6. The maintenance party hangs a "power outage sign" at the position corresponding to the upper roller hanging position sensor. After the sign is hung correctly, the upper roller hanging position sensor is triggered to receive the signal and transmit the signal to the PLC, which controls the touch screen to display the above status;

[0048] S8.7. Insert a safety pin into the safety pin hole of the upper roller in the inspection direction. Once correctly inserted, the upper roller safety pin position sensor is triggered to receive a signal and transmit the signal to the PLC. The upper roller safety pin indicator light is turned on through the PLC. Insert a safety pin into the safety pin hole of the lower roller in the inspection direction. Once correctly inserted, the lower roller safety pin position sensor is triggered to receive a signal and transmit the signal to the PLC. The lower roller safety pin indicator light is turned on through the PLC.

[0049] S8.8, PLC controls the touch screen to display the above status based on the superposition of signals received by the upper roller safety pin position sensor and the lower roller safety pin position sensor;

[0050] S9, the maintenance party completes the finger singing action: "The roller pressing equipment has been repaired and listed", and informs the inspection party and the production party that the three-party listing operation is completed;

[0051] S10: The maintenance party starts simulating maintenance operations.

[0052] The steps for delisting are as follows:

[0053] S1. The maintenance party simulates the completion of the maintenance work and accepts the inspection and confirmation of the maintenance tasks of the roller pressing equipment by the inspection party and the production party;

[0054] S2. Before resuming safe production on the simulated site, the inspection party, maintenance party, and production party shall confirm that the maintenance project has been completed;

[0055] S3. The maintenance party completes the delisting operations of the roller pressing equipment in order and turns off all safety switches, as follows:

[0056] S3.1. The maintenance party pulls out the safety pin from the safety pin hole of the lower roller, triggering the loss of signal from the safety pin position sensor of the lower roller, and controls the PLC to turn off the safety pin indicator of the lower roller. The maintenance party pulls out the safety pin from the safety pin hole of the upper roller, triggering the loss of signal from the safety pin position sensor of the upper roller, and controls the PLC to turn off the safety pin indicator of the upper roller.

[0057] S3.2, PLC controls the touch screen to display the above status based on the superposition of the loss signals of the upper roller safety pin position sensor and the lower roller safety pin position sensor;

[0058] S3.3. The maintenance party removes the "power outage sign" at the position corresponding to the upper roller hanging position sensor. After the sign is removed correctly, the upper roller hanging position sensor is triggered to lose the signal, and the PLC controls the touch screen to display the above status;

[0059] S3.4. The maintenance party turns off the upper roller safety switch, controls the upper roller analog indicator device to turn off the green light through the PLC, controls the upper roller safety switch indicator light to turn off simultaneously, and controls the touch screen to display the above status simultaneously;

[0060] S3.5. The maintenance party removes the "power outage sign" at the position corresponding to the lower roller hanging position sensor. After the sign is removed correctly, the lower roller hanging position sensor is triggered to lose the signal, and the PLC controls the touch screen to display the above status;

[0061] S3.6. The maintenance party turns off the lower roller safety switch, controls the PLC to turn off the green light of the lower roller analog indicator, simultaneously controls the lower roller safety switch indicator to turn off, and controls the touch screen to display the above status simultaneously;

[0062] S3.7. The maintenance party removes the "power outage sign" at the position corresponding to the sign position sensor of the adjustment roller. After the sign is removed correctly, the adjustment roller sign position sensor loses its signal, and the PLC controls the touch screen to display the above status.

[0063] S3.8. The maintenance party turns off the safety switch of the adjustment roller, controls the green light of the adjustment roller analog indicator device through the PLC to turn off, simultaneously controls the indicator light of the adjustment roller safety switch to turn off, and controls the touch screen to display the above status simultaneously;

[0064] S4. The maintenance party completes the operation by saying: "The sign next to the roller press equipment has been removed" and informs the inspection party and the production party;

[0065] S5. The inspection party confirms the removal content and completes the removal and power supply operations in the power distribution cabinet in sequence. The specific steps are as follows:

[0066] S5.1. The inspector removes the "power outage sign" at the position corresponding to the power sign position sensor of the adjustment roller. After the sign is correctly removed, the power sign position sensor of the adjustment roller is triggered to lose the signal, and the PLC controls the touch screen to display the above status;

[0067] S5.2. The inspector turns on the main power switch of the adjustment roller, and the main power indicator light of the adjustment roller is turned on by the PLC, and the touch screen is synchronously controlled to display the above status;

[0068] S5.3. The inspector turns on the power switch of the adjustment roller, and the power indicator light of the adjustment roller is turned on by the PLC, and the touch screen is synchronously controlled to display the above status;

[0069] S5.4. The inspector removes the "power outage sign" at the position corresponding to the lower roller power sign position sensor. After the sign is removed correctly, the lower roller power sign position sensor loses its signal, and the PLC controls the touch screen to display the above status.

[0070] S5.5. The inspection party turns on the main power switches of the upper and lower rollers, and the main power indicator light of the lower roller is turned on through the PLC control, and the touch screen is synchronously controlled to display the above status;

[0071] S5.6. The inspection party turns on the upper and lower roller operating power switches, and the lower roller control power indicator light is lit through the PLC control, and the touch screen is synchronously controlled to display the above status;

[0072] S5.7. The inspection party removes the "power outage sign" at the position corresponding to the upper roller power sign position sensor. After the sign is correctly removed, the upper roller power sign position sensor loses its signal, and the PLC controls the touch screen to display the above status.

[0073] S5.8. The inspector turns on the main power switch of the upper roller, and the PLC controls the main power indicator of the upper roller to light up, and synchronously controls the touch screen to display the above status;

[0074] S5.9. The inspector turns on the upper roller operating power switch, and the upper roller control power indicator light is turned on through the PLC, and the touch screen is synchronously controlled to display the above status;

[0075] S6. The inspection party completes the finger-singing action: "The power distribution cabinet has been de-energized" and informs the production party and the maintenance party;

[0076] S7. The production party confirms the delisting details and completes the delisting and equipment resumption operations in sequence at the operation table;

[0077] S7.1. The manufacturer removes the "stop sign" at the position corresponding to the sign position sensor on the operation console. After the sign is correctly removed, the sign position sensor on the operation console loses its signal, and the PLC controls the touch screen to synchronously display the above status.

[0078] S7.2. The manufacturer operates the upper roller run / stop switch to the start position, controls the upper roller run indicator light via the PLC, and simultaneously controls the upper roller simulation indicator device to light up red and sound a buzzer, simulates the upper roller motor to start running, and controls the touch screen to display the above status simultaneously;

[0079] S7.3. The manufacturer operates the lower roll run / stop switch to the start position, controls the lower roll run indicator light via the PLC, and simultaneously controls the lower roll simulation indicator device to light up red and sound a buzzer, simulating the lower roll motor to start running, and controls the touch screen to display the above status simultaneously;

[0080] S7.4. The manufacturer operates the adjustment roller run / stop switch to the start position, controls the adjustment roller run indicator light via the PLC, and simultaneously controls the adjustment roller simulation indicator device to light up red and sound a buzzer, causing the simulated adjustment roller motor to start running, and controls the touch screen to display the above status simultaneously;

[0081] S8. The production party completes the gesture of pointing and singing: "The operation table has been delisted and resumed operation", informing the inspection party and the maintenance party, and the three-party delisting operation process is completed.

[0082] When the listing operation and the delisting operation are not carried out correctly according to the steps of the two operations, the PLC controls the operation error sound and light indicator to give an alarm. After the step is corrected, the PLC controls the operation error sound and light indicator to stop giving an alarm.

[0083] Furthermore, the touch screen screen includes: a power distribution cabinet model display block, an operating console model display block, a rolling equipment model display block, an upper roller main power synchronous action display block, an upper roller control power synchronous action display block, a lower roller main power indicator light display block, a lower roller control power indicator light display block, an adjustment roller main power indicator light display block and an adjustment roller control power indicator light display block; the power distribution cabinet model display block is provided with an upper roller power sign position sensor display block, a lower roller power sign position sensor display block and an adjustment roller power sign position sensor display block; the rolling equipment model display block is provided with an upper roller sign position sensor display block, a lower roller sign position sensor display block, an adjustment roller sign position sensor display block, an upper roller simulation indicator device display block, a lower roller simulation indicator device display block and an adjustment roller simulation indicator device display block; the operating console model display block is provided with an operating console sign position sensor display block.

[0084] When the upper roller main power switch, upper roller operation power switch, lower roller main power switch, lower roller operation power switch, adjustment roller main power switch and adjustment roller operation power switch are respectively in the closed or open state, the upper roller main power synchronous action display block, the upper roller control power synchronous action display block, the lower roller main power indicator light display block, the lower roller control power indicator light display block, the adjustment roller main power indicator light display block and the adjustment roller control power indicator light display block are displayed in red or green respectively.

[0085] When the upper roller power sign-hanging position sensor, the lower roller power sign-hanging position sensor, the adjustment roller power sign-hanging position sensor, the upper roller sign-hanging position sensor, the lower roller sign-hanging position sensor, the adjustment roller sign-hanging position sensor and the operating table sign-hanging position sensor are respectively in the triggered or untriggered state, the upper roller power sign-hanging position sensor display block, the lower roller power sign-hanging position sensor display block, the adjustment roller power sign-hanging position sensor display block, the upper roller sign-hanging position sensor display block, the lower roller sign-hanging position sensor display block, the adjustment roller sign-hanging position sensor display block and the operating table sign-hanging position sensor display block are respectively displayed in red or green;

[0086] When the upper roller run / stop switch, the lower roller run / stop switch and the adjustment roller run / stop switch are in the start position, the upper roller simulation indicator device display block, the lower roller simulation indicator device display block and the adjustment roller simulation indicator device display block are displayed in red; when the upper roller safety switch, the lower roller safety switch and the adjustment roller safety switch are in the closed state, the upper roller simulation indicator device display block, the lower roller simulation indicator device display block and the adjustment roller simulation indicator device display block are displayed in green.

[0087] Furthermore, the touch screen screen also includes 8 order indication blocks for hanging operations arranged in the same direction and corresponding to hanging operations and 8 order indication blocks for removing operations arranged in the same direction and corresponding to removing operations, and arrows in the same direction are set between adjacent order indication blocks for hanging operations and adjacent order indication blocks for removing operations; before the hanging operation, the 8 order indication blocks for hanging operations are all displayed in red, and before the removing operation, the 8 order indication blocks for removing operations are respectively displayed in green; the 8 order indication blocks for removing operations correspond to the order in the hanging operation, respectively. Steps S4, S6.3, S6.6, S6.9, S8.2, S8.4, S8.6 and S8.8, when the above steps are completed respectively, the corresponding listing operation sequence indicator blocks turn from red to green; the 8 delisting operation sequence indicator blocks correspond to steps S3.2, S3.3, S3.5, S3.7, S5.1, S5.4, S5.7 and S7.1 in the delisting operation respectively. When the above steps are completed respectively, the corresponding delisting operation sequence indicator blocks turn from green to red.

[0088] Furthermore, the touch screen screen also includes an operation error sound and light indicator display block, a timing and scoring display block, an error number display block and an error message prompt box. The default state of the operation error sound and light indicator display block is green; when the listing operation and the delisting operation are not performed correctly according to the steps of the two operations, the PLC controls the operation error sound and light indicator to warn, and at the same time, the operation error sound and light indicator display block is controlled to change from green to red flashing, and at the same time, the error number display block records the number of times, and the error message prompt box displays the error message. After the step is corrected, the PLC controls the operation error sound and light indicator to stop warning, and at the same time, the operation error sound and light indicator display block is controlled to change from red flashing to green.

[0089] When in training mode, the operation time is recorded by PLC, and the hanging and removing operations are scored according to the pre-set scoring rules and displayed through the timing and scoring display block;

[0090] When in assessment mode, the operation time is recorded by PLC, and the listing operation and delisting operation are scored according to the pre-set scoring rules and displayed through the timing and scoring display block. When the preset assessment time is reached, the timing and scoring are stopped and displayed through the timing and scoring display block.

[0091] Compared with the existing technology, this application constitutes a roller-pressing equipment safety inspection and maintenance training and assessment system by setting up related operating tables, power distribution cabinets and roller-pressing equipment, and is equipped with corresponding training and assessment methods. It adopts the "physical operation + virtual feedback + intelligent management and control" three-in-one mode to achieve mandatory operation sequence, reduce standardized processes due to human omissions, realize dynamic simulation of accident consequences, enhance risk perception of safety awareness, and realize automatic scoring and step judgment of the control system, saving assessment time and improving training efficiency.

[0092] The technical effects of this application can cover the four major dimensions of security, efficiency, economy and compliance. Through the deep integration of software and hardware, it can provide standardized and replicable security training solutions for high-risk industries, while meeting the dual needs of efficient operation and maintenance and regulatory compliance of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0093] Figure 1 This is a schematic diagram of the roller press equipment safety maintenance and training assessment system used in this application;

[0094] Figure 2 This is a schematic diagram of the power distribution cabinet in this application;

[0095] Figure 3 Schematic diagram of the roller pressing equipment in this application;

[0096] Figure 4 This is a schematic diagram of the operating table in this application;

[0097] Figure 5 This is the electrical control schematic diagram for this application;

[0098] Figure 6 This is a schematic diagram of the connection between the external input unit and the PLC in this application;

[0099] Figure 7 This is a schematic diagram of the connection between the output unit and the PLC in this application;

[0100] Figure 8 This is the emergency stop control schematic diagram in this application;

[0101] Figure 9 This is a schematic diagram of the touch screen display in this application;

[0102] In the figure: 1. Power distribution cabinet; 2. Front cabinet operation area; 3. Rear cabinet control area; 4. Automatic switch group; 5. Hanging position; 6. Cable duct; 7. Control cable; 8. Machine side junction box; 9. Wiring terminal; 10. Operation table; 11. Indication operation area; 12. Touch screen; 13. Rolling equipment; 14. Upper roller; 15. Reducer; 16. Upper roller motor; 17. Lower roller; 18. Lower roller motor; 19. Adjusting roller; 20. Adjusting roller motor; 21. Indication area; 22. Upper roller main power switch; 23. Upper roller operating power switch; 24. Lower roller main power switch; 25. Lower roller operating power switch; 26. Adjusting roller main power switch; 27. Adjusting roller operating power switch; 28. Upper roller power hanging position Sensor; 29, lower roller power tag position sensor; 30, adjustment roller power tag position sensor; 31, upper roller tag position sensor; 32, lower roller tag position sensor; 33, adjustment roller tag position sensor; 34, upper roller safety pin position sensor; 35, upper roller safety pin hole; 36, lower roller safety pin position sensor; 37, lower roller safety pin hole; 38, upper roller simulation indicator device; 39, lower roller simulation indicator device; 40, adjustment roller simulation indicator device; 41, upper roller safety switch; 42, lower roller safety switch; 43, adjustment roller safety switch; 44, communication cable; 45, upper roller main power indicator light; 46, upper roller control power indicator light; 47, lower roller main power indicator light; 48, lower roller control power indicator light; 4 9. Adjustment roller main power indicator; 50. Adjustment roller control power indicator; 51. Test light button; 52. Operation error sound and light indicator; 53. Training platform operation permission indicator; 54. Emergency stop button; 55. Upper roller safety switch indicator; 56. Lower roller safety switch indicator; 57. Adjustment roller safety switch indicator; 58. Upper roller safety latch indicator; 59. Lower roller safety latch indicator; 60. Upper roller operation indicator; 61. Lower roller operation indicator; 62. Adjustment roller operation indicator; 63. Upper roller run / stop switch; 64. Lower roller run / stop switch; 65. Adjustment roller run / stop switch; 66. Training operation / assessment switch; 67. Operation platform nameplate position sensor; 68. Nameplate operation sequence indicator block; 69. Detaching operation sequence indicator block; 70. Timing and scoring display block; 71. Error count display block; 72. Error message prompt box; 73. Emergency stop control relay; 74. AC220V AC power supply; 75. AC power supply; 76. Isolation transformer; 77. Drive power supply; 78. PLC; 79. External input unit; 80. Output unit; 81. Automatic switch; 1', Power distribution cabinet model display block; 10', Operation console model display block; 28', Upper roller power supply and tag position sensor display block; 29', Lower roller power supply and tag position sensor display block; 30', Adjustment roller power supply and tag position sensor display block; 31', Upper roller tag position sensor display block; 32', Lower roller tag position sensor display block;33', adjustment roller tag position sensor display block; 38', upper roller simulation indicator display block; 39', lower roller simulation indicator display block; 40', adjustment roller simulation indicator display block; 45', upper roller main power synchronization action display block; 46', upper roller control power synchronization action display block; 47', lower roller main power indicator display block; 48', lower roller control power indicator display block; 49', adjustment roller main power indicator display block; 50', adjustment roller control power indicator display block; 52', operation error sound and light indicator display block; 67', operation console tag position sensor display block. DETAILED DESCRIPTION

[0103] The technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings of the specification of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The words "connect" or "connected" and similar words used in the specification and claims of this open patent application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0104] Example 1:

[0105] As shown in the accompanying drawings, the present application provides a system for training and assessing safety inspection and maintenance of rolling equipment, which includes a power distribution cabinet 1, an operating table 10 and a rolling equipment 13 connected by cables.

[0106] The power distribution cabinet 1 adopts a split-panel design, including a front-panel operation area 2 and a rear-panel control area 3, achieving physical isolation between human-machine interaction and control logic. Specifically, the rear-panel control area 3 is equipped with a PLC 78 and an emergency stop control relay 73 electrically connected to the PLC 78. The front-panel operation area 2 is provided with an automatic switch group 4 and a sign area 5 above and below. The automatic switch group 4 includes an upper roller main power switch 22, an upper roller operating power switch 23, a lower roller main power switch 24, a lower roller operating power switch 25, an adjustment roller main power switch 26, and an adjustment roller operating power switch 27, each electrically connected to the PLC 78. The sign area 5 below the automatic switch group 4 is used to correspondingly set an upper roller power sign position sensor 28, a lower roller power sign position sensor 29, and an adjustment roller power sign position sensor 30, each electrically connected to the PLC 78.

[0107] The operating console 10 is used to simulate the production operation of the rolling equipment, monitor various signal feedbacks of the rolling equipment operation, etc., and includes an indication operation area 11 set on the control panel and a touch screen 12 electrically connected to the PLC 78. The indication operation area 11 is provided with a training platform operation permission indicator light 53 electrically connected to the emergency stop control relay 73, and an upper roller main power indicator light 45, an upper roller control power indicator light 46, a lower roller main power indicator light 47, a lower roller control power indicator light 48, an adjustment roller main power indicator light 49, an adjustment roller control power indicator light 50, an operation error sound and light indicator 52, an emergency stop button 54, an upper roller safety switch indicator light 55, a lower roller safety switch indicator light 56, an adjustment roller safety switch indicator light 57, an upper roller safety latch indicator light 58, and a lower roller safety latch indicator light 55 electrically connected to the PLC 78. 9. Upper roller operation indicator light 60, lower roller operation indicator light 61, adjustment roller operation indicator light 62, upper roller operation / stop switch 63, lower roller operation / stop switch 64, adjustment roller operation / stop switch 65, training operation / assessment switch 66 and operating table hanging position sensor 67; the training operation / assessment switch 66 adopts a three-position rotary switch, including a stop position, a training start position and an assessment start position, which is used for training mode and examination mode operations; the upper roller operation / stop switch 63, the lower roller operation / stop switch 64 and the adjustment roller operation / stop switch 65 are all two-position rotary switches, including a stop position and a start position.

[0108] The rolling equipment 13 is used to simulate the rolling equipment used in actual production. It includes an upper roller 14 with an upper roller safety pin hole 35, a lower roller 17 with a lower roller safety pin hole 37, and an adjustment roller 19. The end of the upper roller 14 is connected to the upper roller motor 16 through a reducer 15. The upper roller safety pin hole 35, the upper roller motor 16, and the reducer 15 connected to the upper roller motor 16 are respectively provided with an upper roller safety pin position sensor 34 electrically connected to the PLC 78, an upper roller simulation indicator device 38, an upper roller hanging position sensor 31, and an upper roller safety switch 41; the end of the lower roller 17 is connected to the lower roller motor 18 through the reducer 15. The lower roller safety pin hole 37, the lower roller motor 18, and the reducer 15 connected to the lower roller motor 18 are respectively provided with an upper roller safety pin position sensor 34 electrically connected to the PLC 78, an upper roller simulation indicator device 38, an upper roller hanging position sensor 31, and an upper roller safety switch 41. The connected reducer 15 is respectively provided with a lower roller safety pin position sensor 36 electrically connected to PLC78, a lower roller simulation indicating device 39, a lower roller hanging position sensor 32 and a lower roller safety switch 42; the end of the adjustment roller 19 is connected to the adjustment roller motor 20 through the reducer 15, and the adjustment roller motor 20 and the reducer 15 connected to the adjustment roller motor 20 are respectively provided with an adjustment roller simulation indicating device 40 electrically connected to PLC78, an adjustment roller hanging position sensor 33 and an adjustment roller safety switch 43.

[0109] In this embodiment, the location areas of all the sign-hanging sensors involved are all sign-hanging locations 5 .

[0110] In order to facilitate the inspection party, the maintenance party and the production party to perform finger-singing operations when using the training and assessment system, the system can also include a finger-singing area 21.

[0111] In order to facilitate the touch screen 12 to display the status of the training and assessment system during operation, the touch screen 12 is connected to the PLC78 through a communication cable 44 to realize the communication function.

[0112] In order to facilitate the cable wiring and connection of the power distribution cabinet 1, the operating table 10 and the rolling equipment 13, as a preferred embodiment, the power distribution cabinet 1 and the operating table 10 are respectively provided with a number of wiring terminals 9, and the rolling equipment 13 is provided with a machine-side junction box 8, and the machine-side junction box 8 is provided with a number of wiring terminals 9.

[0113] The upper roller main power switch 22, upper roller operating power switch 23, lower roller main power switch 24, lower roller operating power switch 25, adjustment roller main power switch 26, adjustment roller operating power switch 27, upper roller power sign position sensor 28, lower roller power sign position sensor 29 and adjustment roller power sign position sensor 30 in the power distribution cabinet 1 are respectively connected to the corresponding input ports of PLC78 through the control cable 7 and the corresponding terminal 9.

[0114] The emergency stop button 54, upper roller run / stop switch 63, lower roller run / stop switch 64, adjustment roller run / stop switch 65, practical training operation / assessment switch 66 and operating table sign position sensor 67 on the operating console 10 are respectively connected to the corresponding input ports of PLC78 through the control cable 7 and the corresponding terminal 9.

[0115] The upper roller main power indicator light 45, upper roller control power indicator light 46, lower roller main power indicator light 47, lower roller control power indicator light 48, adjustment roller main power indicator light 49, adjustment roller control power indicator light 50, operation error sound and light indicator 52, upper roller safety switch indicator light 55, lower roller safety switch indicator light 56, adjustment roller safety switch indicator light 57, upper roller safety latch indicator light 58, lower roller safety latch indicator light 59, upper roller operation indicator light 60, lower roller operation indicator light 61 and adjustment roller operation indicator light 62 on the operating table 10 are respectively connected to the corresponding output ports of PLC78 through the control cable 7 and the corresponding terminal 9.

[0116] The upper roller safety pin position sensor 34, upper roller hanging position sensor 31, upper roller safety switch 41, lower roller safety pin position sensor 36, lower roller hanging position sensor 32, lower roller safety switch 42, adjustment roller hanging position sensor 33 and adjustment roller safety switch 43 of the rolling equipment 13 are respectively connected to the corresponding input ports of PLC78 through the control cable 7 and the corresponding terminal 9.

[0117] The upper roller simulation indicator device 38, the lower roller simulation indicator device 39 and the adjustment roller simulation indicator device 40 of the rolling equipment 13 can all display a red light or a green light. When the red light is on, there is a buzzer sound. The red light, buzzer and green light of the simulation indicator devices of the three rollers are respectively connected to the corresponding output ports of PLC78 through the control cable 7 and the corresponding terminal 9 to realize the corresponding functions.

[0118] The coil of the emergency stop control relay 73 is connected to the corresponding output port of the PLC 78 through the control cable 7 and the corresponding terminal 9, and the normally open contact of the emergency stop control relay 73 is connected in series with the operation permission indicator light 53 of the training platform.

[0119] The components connected to the input ports of the PLC 78 constitute an external input unit 79 for inputting various signals to the PLC 78. The components connected to the output ports of the PLC 78 constitute an output unit 80 for outputting corresponding signals according to the various input signals.

[0120] The control cables 7 and the communication cables 44 are routed using cable ducts 6 to maintain the simplicity and aesthetics of the entire system.

[0121] In order to provide power to each component in the practical training and assessment system, the practical training and assessment system also includes an AC power supply 75, which includes an AC220V AC power supply 74 and an isolation transformer 76 connected to the AC220V AC power supply 74 through an automatic switch 81. The isolation transformer 76 is connected to a driving power supply 77, which is respectively connected to the PLC78, the touch screen 12 and the components connected to the output ports of the PLC78 (i.e., the output unit 80) and provides power.

[0122] Take PLC78 with Mitsubishi FX2N-128MR-001 as an example: upper roller main power switch 22 auxiliary normally open point output side, lower roller main power switch 24 auxiliary normally open point output side, adjustment roller main power switch 26 auxiliary normally open point output side, upper roller operation power switch 23 auxiliary normally open point output side, lower roller operation power switch 25 auxiliary normally open point output side, adjustment roller operation power switch 27 auxiliary normally open point output side, upper roller run / stop switch 63 normally open point output side, lower roller Run / stop switch 64 normally open output side, adjustment roller run / stop switch 65 normally open output side, emergency stop button 54 normally closed output side, upper roller safety switch 41 normally open output side, lower roller safety switch 42 normally open output side, adjustment roller safety switch 43 normally open output side, upper roller safety latch position sensor 34 normally open output side, lower roller safety latch position sensor 36 normally open output side, upper roller power tag position sensor 28 normally open output side, lower roller power tag position sensor Sensor 29 normally open output side, adjustment roller power supply hanging position sensor 30 normally open output side, upper roller hanging position sensor 31 normally open output side, lower roller hanging position sensor 32 normally open output side, adjustment roller hanging position sensor 33 normally open output side and operation table hanging position sensor 67 normally open output side are connected to PLC78 input port X3, X4, X5, X11, X12, X13, X17, X20, X21, X2 Points X3, X33, X34, X35, X36, X37, X40, X41, X42, X43, X44, X45, and X46 are connected. The normally open output side of the training operation / assessment switch 66 is connected to points X50 and X51 of the PLC78 input ports, corresponding to the training start position and the assessment start position, respectively. The normally open input side or normally closed input side of the above components are connected in parallel and connected to the COM point of the PLC78 input port;

[0123] The driving power supply 77 is a DC24V power supply, and its 24+ terminal is connected to the COM point of the PLC78 output port; the PLC78 output port Y3, Y4, Y5, Y11, Y12, Y13, Y16, Y43, Y44 and Y22 points are respectively connected to the upper roller main power indicator light 45 input terminal, the lower roller main power indicator light 47 input terminal, the adjustment roller main power indicator light 49 input terminal, the upper roller control power indicator light 46 input terminal, the lower roller control power indicator light 48 input terminal, the adjustment roller control power indicator light 50 input terminal, the operation error sound and light indicator 52 input terminal, the upper roller safety latch indicator light 58 input terminal, the lower roller safety latch indicator light 59 input terminal and the emergency stop control terminal. Relay 73 coil input end; PLC78 output port Y24 is connected to the upper roller operation indicator light 60 input end, and is also connected to the red light of the upper roller simulation indicator device 38 and the buzzer input end. When working, the red light of the upper roller simulation indicator device 38 is on and the buzzer sounds; PLC78 output port Y25 is connected to the lower roller operation indicator light 61 input end, and is also connected to the red light of the lower roller simulation indicator device 39 and the buzzer input end. When working, the red light of the lower roller simulation indicator device 39 is on and the buzzer sounds; PLC78 output port Y26 is connected to the adjustment roller operation indicator light 62 input end, and is also connected to the red light of the adjustment roller simulation indicator device 40 and the buzzer input end. When the adjustment roller is in operation, the red light of the simulation indicator device 40 is on and a buzzer sounds; the output port Y40 of PLC78 is connected to the input end of the upper roller safety switch indicator light 55, and is also connected to the green light input end of the upper roller simulation indicator device 38. When the adjustment roller is in operation, the green light of the upper roller simulation indicator device 38 is on; the output port Y41 of PLC78 is connected to the input end of the lower roller safety switch indicator light 56, and is also connected to the green light input end of the lower roller simulation indicator device 39. When the adjustment roller is in operation, the green light of the lower roller simulation indicator device 39 is on; the output port Y42 of PLC78 is connected to the input end of the safety switch indicator light 57 of the adjustment roller, and is also connected to the green light input end of the simulation indicator device 40. When the adjustment roller is in operation, the green light of the lower roller simulation indicator device 39 is on. The green light of the indicator device 40 is on; the 24- terminal of the driving power supply 77 is connected in parallel with the output terminals of the above-mentioned indicator lights, indicators, indicating devices and coils; the 24+ terminal of the driving power supply 77, the normally open contact of the emergency stop control relay 73, the operation permission indicator light 53 and the 24- terminal of the driving power supply 77 are connected in sequence. When the PLC78 is working normally, its output port Y22 triggers the emergency stop control relay 73 coil to be energized, the normally open contact of the emergency stop control relay 73 is attracted, and the operation permission indicator light 53 is on. When the emergency stop button 54 is pressed, the emergency stop control relay 73 coil is de-energized through its output port Y22, the normally open contact of the emergency stop control relay 73 is disconnected, and the operation permission indicator light 53 is off.

[0124] As a preferred embodiment, a test light button 51 electrically connected to PLC78 can also be provided on the operating console 10. The test light button 51 is connected to the input port X22 corresponding to PLC78 through the control cable 7 and the corresponding terminal 9. When the test light button 51 is pressed, the PLC78 controls various prompt lights, indicating devices, and indicators to light up in response, etc., to ensure that there are no faulty components.

[0125] Example 2:

[0126] Based on the training and assessment method for the roller equipment safety maintenance and labeling training and assessment system in Example 1, the training and assessment method includes a training mode and an assessment mode. Both modes include the inspection party, the maintenance party and the production party simulating the labeling and delisting operations during the roller equipment safety maintenance.

[0127] Before operating the training mode and the assessment mode, the actual operating state of the rolling equipment is simulated by the training system for the safety inspection and listing of the rolling equipment, namely: the PLC78 in the power distribution cabinet 1 is in the operating state; the upper roller main power switch 22, the upper roller operation power switch 23, the lower roller main power switch 24, the lower roller operation power switch 25, the adjustment roller main power switch 26 and the adjustment roller operation power switch 27 are all in the closed state; the emergency stop control relay 73 is in the working state, that is, the closed or disconnected state of the normally open contact of the emergency stop control relay 73 is determined according to whether the Y22 port of the PLC78 triggers the emergency stop control relay 73 coil to be energized or de-energized; the upper roller main power indicator light 45, the upper roller control power indicator light 46, the lower roller main power indicator light 47, the lower roller control power indicator light 48, the adjustment roller main power indicator light 49 and the adjustment roller control power indicator light 50 on the operating console 10 are in the light state; the operation error sound and light indicator 52 is in the sound and light alarm inactive state; the upper roller safety switch indicates Light 55, lower roller safety switch indicator light 56, adjustment roller safety switch indicator light 57, upper roller safety latch indicator light 58 and lower roller safety latch indicator light 59 are in the off state; the upper roller operation indicator light 60, lower roller operation indicator light 61 and adjustment roller operation indicator light 62 are in the on state; the upper roller run / stop switch 63, lower roller run / stop switch 64 and adjustment roller run / stop switch 65 are all in the start position; the training operation / assessment switch 66 is in the stop position; the touch screen 12 displays the operating status of the entire system in real time; the operation permission indicator light 53 is in the off state; the test light button 51 is in the off state; the emergency stop button 54 is in the closed state; the upper roller simulation indicator device 38, lower roller simulation indicator device 39 and adjustment roller simulation indicator device 40 on the rolling equipment 13 are in the red light and buzzer sounding state, simulating the operating status of the upper roller 14, lower roller 17 and adjustment roller 19; the upper roller safety switch 41, lower roller safety switch 42 and adjustment roller safety switch 43 are in the off state.

[0128] When the training mode is selected, operate the training operation / assessment switch 66 to the training start position, the Y22 point of PLC78 triggers the emergency stop control relay 73 coil to be energized, the normally open contact of the emergency stop control relay 73 is energized, the control permission operation indicator light 53 lights up, and the training mode is entered.

[0129] When the assessment mode is selected, operate the training operation / assessment switch 66 to the assessment start position, the Y22 point of PLC78 triggers the emergency stop control relay 73 coil to be energized, the normally open contact of the emergency stop control relay 73 is energized, the control permission operation indicator light 53 lights up, and enters the assessment mode.

[0130] When the training operation / assessment switch 66 is in the stop position and switches from the training start position or the assessment start position to the stop position, the Y22 point of PLC78 does not output, the emergency stop control relay 73 coil loses power, the normally open contact of the emergency stop control relay 73 is energized, and the control permission operation indicator light 53 goes out.

[0131] The specific steps for listing are as follows:

[0132] S1, the maintenance party simulates accepting the maintenance task of the rolling equipment 13 from the inspection party;

[0133] S2. The inspection party, maintenance party and production party shall simulate on-site safety briefing in the designated area 21, confirm the maintenance items and sign;

[0134] S3. Operate the switches on the control panel of the production station 10 to shut down the machine in sequence, as follows:

[0135] S3.1. The manufacturer operates the adjustment roller run / stop switch 65 to the stop position, controls the adjustment roller run indicator 62 to turn off via the PLC 78, and simultaneously controls the adjustment roller simulation indicator 40 to turn off the red light and stop the buzzer, stops the simulated adjustment roller motor 20, and controls the touch screen 12 to display the above status.

[0136] S3.2. The manufacturer operates the lower roller run / stop switch 64 to the stop position, controls the lower roller run indicator light 61 to turn off via the PLC 78, and simultaneously controls the lower roller simulation indicator device 39 to turn off its red light and stop the buzzer, simulates the lower roller motor 18 to stop running, and controls the touch screen 12 to display the above status;

[0137] S3.3. The manufacturer operates the upper roller run / stop switch 63 to the stop position, controls the upper roller run indicator light 60 to turn off via the PLC 78, and simultaneously controls the upper roller simulation indicator device 38 to turn off the red light and stop the buzzer, stops the simulated upper roller motor 16, and controls the touch screen 12 to display the above status simultaneously;

[0138] S4. The manufacturer hangs a "Stop Sign" on the console 10 corresponding to the sign position 5 on the console, triggering the console sign position sensor 67 to receive a signal and transmit the signal to the PLC 78, which controls the touch screen 12 to synchronously display the above status;

[0139] S5. The production party performs a gesture in the pointing area 21: "The operation table has been shut down and the sign is on", informing the inspection party and the maintenance party;

[0140] S6. The inspection party confirms the tag content and completes the power outage and tag operation in the power distribution cabinet 1 in sequence. The specific steps are as follows:

[0141] S6.1. The inspector turns off the upper roller operation power switch 23, controls the upper roller control power indicator 46 via the PLC 78 to turn off, and synchronously controls the touch screen 12 to display the above status;

[0142] S6.2. The inspector turns off the upper roller main power switch 22, controls the upper roller main power indicator light 45 to go out via the PLC 78, and simultaneously controls the touch screen 12 to display the above status;

[0143] S6.3. The inspector places a "power outage sign" at sign position 5 corresponding to upper roller power sign position sensor 28 on power distribution cabinet 1. Once the sign is correctly placed, upper roller power sign position sensor 28 is triggered to receive a signal and transmit the signal to PLC 78, which controls touch screen 12 to display the above status.

[0144] S6.4. The inspector turns off the lower roller operating power switch 25, controls the lower roller control power indicator light 48 via the PLC 78 to turn off, and simultaneously controls the touch screen 12 to display the above status;

[0145] S6.5. The inspection party turns off the lower roller main power switch 24, controls the lower roller main power indicator light 47 via the PLC 78 to turn off, and simultaneously controls the touch screen 12 to display the above status;

[0146] S6.6. The inspector places a "power outage sign" at the corresponding sign position 5 on the lower roller power supply sign position sensor 29 on the power distribution cabinet 1. Once the sign is correctly placed, the lower roller power supply sign position sensor 29 is triggered to receive a signal and transmit the signal to the PLC 78, which controls the touch screen 12 to display the above status.

[0147] S6.7. The inspector turns off the adjustment roller operating power switch 27, controls the adjustment roller control power indicator 50 via the PLC 78, and simultaneously controls the touch screen 12 to display the above status;

[0148] S6.8. The inspector turns off the main power switch 26 of the adjustment roller, controls the main power indicator 49 of the adjustment roller via the PLC 78 to turn off, and simultaneously controls the touch screen 12 to display the above status;

[0149] S6.9. The inspector hangs a "power outage sign" at the position corresponding to the adjustment roller power sign position sensor 30 on the power distribution cabinet 1. Once the sign is correctly hung, the adjustment roller power sign position sensor 30 is triggered to receive a signal and transmit the signal to the PLC 78, which controls the touch screen 12 to display the above status.

[0150] S7. The inspection party performs a pointing action in the pointing area 21: "The power distribution cabinet has been shut down and the sign is on", informing the production party and the maintenance party;

[0151] S8. The maintenance party confirms the contents of the sign and completes the safety interlock operation and signs in sequence beside the roller press equipment 13. The specific steps are as follows:

[0152] S8.1. The maintenance party closes the adjusting roller safety switch 43, controls the adjusting roller analog indicator device 40 to light green via the PLC 78, simultaneously controls the adjusting roller safety switch indicator light 57 to light, and controls the touch screen 12 to display the above status;

[0153] S8.2. The maintenance party hangs a "power outage sign" at the position corresponding to the adjustment roller sign position sensor 33. After the sign is correctly hung, the adjustment roller sign position sensor 33 is triggered to receive a signal and transmit the signal to the PLC 78, which controls the touch screen 12 to display the above status.

[0154] S8.3, the maintenance side closes the upper and lower roller safety switches 42, controls the lower roller analog indicator device 39 to light green through the PLC 78, simultaneously controls the lower roller safety switch indicator light 56 ​​to light, and controls the touch screen 12 to display the above status;

[0155] S8.4. The maintenance party hangs a "power outage sign" at the sign position 5 corresponding to the lower roller sign position sensor 32. After the sign is correctly hung, the lower roller sign position sensor 32 is triggered to receive a signal and transmit the signal to the PLC 78, which controls the touch screen 12 to display the above status.

[0156] S8.5. The maintenance party closes the upper roller safety switch 41, controls the upper roller analog indicator device 38 to light green via the PLC 78, simultaneously controls the upper roller safety switch indicator light 55 to light, and controls the touch screen 12 to display the above status simultaneously;

[0157] S8.6. The maintenance party hangs a "power outage sign" at the sign position 5 corresponding to the upper roller sign position sensor 31. After the sign is correctly hung, the upper roller sign position sensor 31 is triggered to receive a signal and transmit the signal to the PLC 78, which controls the touch screen 12 to display the above status;

[0158] S8.7. Insert a safety pin into the safety pin hole 35 of the inspection direction roller. If it is correctly inserted, the upper roller safety pin position sensor 34 is triggered to receive a signal and transmit the signal to PLC 78, which controls the upper roller safety pin indicator 58 to light up. Insert a safety pin into the safety pin hole 37 of the inspection direction lower roller. If it is correctly inserted, the lower roller safety pin position sensor 36 is triggered to receive a signal and transmit the signal to PLC 78, which controls the lower roller safety pin indicator 59 to light up.

[0159] S8.8, PLC78 controls the touch screen 12 to display the above status based on the superposition of the signals received by the upper roller safety pin position sensor 34 and the lower roller safety pin position sensor 36;

[0160] S9, the maintenance party completes the finger-singing action in the finger-singing area 21: "The roller pressing equipment has been repaired and posted", notifying the inspection party and the production party, and the three-party posting operation is completed;

[0161] S10: The maintenance party starts simulating maintenance operations.

[0162] After the listing operation is completed, the specific steps for delisting are as follows:

[0163] S1. The maintenance party simulates the completion of the maintenance work, and the inspection party and the production party check and confirm the maintenance task of the rolling equipment 13;

[0164] S2. Before the simulated on-site safe resumption of production, the inspection party, maintenance party, and production party confirm that the maintenance project has been completed in the singing area 21;

[0165] S3. The maintenance party completes the delisting operation of the roller pressing equipment 13 in order and turns off each safety switch, as follows:

[0166] S3.1. The maintenance party pulls out the safety pin from the lower roller safety pin hole 37, triggering the lower roller safety pin position sensor 36 to lose the signal, and controls the lower roller safety pin indicator 59 to go out via PLC 78. The maintenance party pulls out the safety pin from the upper roller safety pin hole 35, triggering the upper roller safety pin position sensor 34 to lose the signal, and controls the upper roller safety pin indicator 58 to go out via PLC 78.

[0167] S3.2, PLC78 controls the touch screen 12 to display the above status based on the superposition of the lost signals of the upper roller safety pin position sensor 34 and the lower roller safety pin position sensor 36;

[0168] S3.3. The maintenance party removes the "power outage sign" at the position corresponding to the upper roller sign position sensor 31. After the sign is correctly removed, the upper roller sign position sensor 31 loses its signal, and the PLC 78 controls the touch screen 12 to display the above status.

[0169] S3.4. The maintenance party turns off the upper roller safety switch 41, controls the upper roller analog indicator device 38 to turn off the green light through the PLC 78, simultaneously controls the upper roller safety switch indicator light 55 to turn off, and controls the touch screen 12 to display the above status simultaneously;

[0170] S3.5. The maintenance party removes the "power outage sign" at the position corresponding to the lower roller sign position sensor 32. After the sign is correctly removed, the lower roller sign position sensor 32 is triggered to lose the signal, and the touch screen 12 is controlled by the PLC 78 to display the above status;

[0171] S3.6. The maintenance party turns off the lower roller safety switch 42, controls the PLC 78 to turn off the green light of the lower roller analog indicator 39, simultaneously turns off the lower roller safety switch indicator 56, and controls the touch screen 12 to display the above status;

[0172] S3.7. The maintenance party adjusts the roller sign position sensor 33 to the position corresponding to the power outage sign. After the sign is correctly removed, the adjustment roller sign position sensor 33 is triggered to lose the signal, and the PLC 78 controls the touch screen 12 to display the above status.

[0173] S3.8. The maintenance party turns off the adjustment roller safety switch 43, controls the adjustment roller analog indicator 40 to turn off its green light via PLC 78, simultaneously controls the adjustment roller safety switch indicator 57 to turn off, and controls the touch screen 12 to display the above status.

[0174] S4, the maintenance party completes the finger singing action in the finger singing area 21: "The sign next to the roller pressing equipment has been removed", and informs the inspection party and the production party;

[0175] S5. The inspection party confirms the removal content and completes the removal and power supply operations in the power distribution cabinet 1 in sequence. The specific steps are as follows:

[0176] S5.1. The inspector removes the "power outage sign" at sign position 5 corresponding to the sign position sensor 30 of the adjustment roller power supply. After the sign is correctly removed, the adjustment roller power supply sign position sensor 30 loses its signal, and the PLC 78 controls the touch screen 12 to display the above status.

[0177] S5.2. The inspector turns on the main power switch 26 of the adjustment roller, controls the main power indicator 49 of the adjustment roller to light up through the PLC 78, and simultaneously controls the touch screen 12 to display the above status;

[0178] S5.3. The inspector closes the adjustment roller operating power switch 27, controls the adjustment roller control power indicator 50 to light up via the PLC 78, and simultaneously controls the touch screen 12 to display the above status;

[0179] S5.4. The inspector removes the "power outage sign" at the sign position 5 corresponding to the lower roller power sign position sensor 29. After the sign is correctly removed, the lower roller power sign position sensor 29 loses its signal, and the PLC 78 controls the touch screen 12 to display the above status.

[0180] S5.5. The inspection party turns on the upper and lower roller main power switches 24, controls the lower roller main power indicator 47 to light up via the PLC 78, and synchronously controls the touch screen 12 to display the above status;

[0181] S5.6. The inspection party turns on the upper and lower roller operating power switches 25, controls the lower roller control power indicator 48 to light up through the PLC 78, and synchronously controls the touch screen 12 to display the above status;

[0182] S5.7. The inspector removes the "power outage sign" at the position corresponding to the upper roller power sign position sensor 28. After the sign is correctly removed, the upper roller power sign position sensor 28 is triggered to lose the signal, and the PLC 78 controls the touch screen 12 to display the above status;

[0183] S5.8. The inspector turns on the upper roller main power switch 22, controls the upper roller main power indicator 45 to light up via the PLC 78, and simultaneously controls the touch screen 12 to display the above status;

[0184] S5.9. The inspector closes the upper roller operation power switch 23, controls the upper roller control power indicator 46 via the PLC 78 to illuminate, and simultaneously controls the touch screen 12 to display the above status;

[0185] S6. The inspection party completes the pointing action in the pointing area 21: "The power distribution cabinet has been de-tagged and powered on", and informs the production party and the maintenance party;

[0186] S7. The production party confirms the delisting details and completes the delisting and equipment resumption operations in order at the operation console 10;

[0187] S7.1. The manufacturer removes the "Stop Sign" at the position corresponding to the sign position sensor 67 on the console. After the sign is correctly removed, the sign position sensor 67 on the console loses its signal, and the PLC 78 controls the touch screen 12 to synchronously display the above status.

[0188] S7.2. The manufacturer operates the upper roller run / stop switch 63 to the start position, controls the upper roller run indicator light 60 to light up via the PLC 78, and simultaneously controls the upper roller simulation indicator device 38 to light up red and sound a buzzer, simulates the upper roller motor 16 to start running, and controls the touch screen 12 to display the above status simultaneously;

[0189] S7.3. The manufacturer operates the lower roll run / stop switch 64 to the start position, controls the lower roll run indicator light 61 via the PLC 78, and simultaneously controls the lower roll simulation indicator device 39 to light up red and sound a buzzer, simulating the lower roll motor 18 to start running, and controls the touch screen 12 to display the above status simultaneously;

[0190] S7.4. The manufacturer operates the adjustment roller run / stop switch 65 to the start position, controls the adjustment roller run indicator 62 to light up via the PLC 78, and simultaneously controls the adjustment roller simulation indicator device 40 to light up red and sound a buzzer, causing the simulated adjustment roller motor 20 to start running, and controls the touch screen 12 to display the above status simultaneously;

[0191] S8. The production party completes the gesture of pointing and singing: "The operation table has been delisted and resumed operation", informing the inspection party and the maintenance party, and the three-party delisting operation process is completed.

[0192] If the steps of the listing and delisting operations are not performed correctly, the PLC 78 controls the operation error sound and light indicator 52 to sound an alarm. After the step is corrected, the PLC 78 controls the operation error sound and light indicator 52 to stop sounding. If the incorrect step is not corrected, subsequent operations will be invalid, ensuring that all operations are strictly executed in the set order.

[0193] In order to display the operation process more intuitively from the touch screen 12, as a preferred embodiment, the touch screen 12 screen includes: a power distribution cabinet model display block 1', an operating table model display block 10', a rolling equipment model display block 13', an upper roller main power synchronous action display block 45', an upper roller control power synchronous action display block 46', a lower roller main power indicator light display block 47', a lower roller control power indicator light display block 48', an adjustment roller main power indicator light display block 49' and an adjustment roller control power indicator light display block 50'. The power distribution cabinet model display block 1' is provided with an upper roller power indicator light. The source hanging position sensor display block 28', the lower roller power hanging position sensor display block 29' and the adjustment roller power hanging position sensor display block 30', the rolling equipment model display block 13' is provided with the upper roller hanging position sensor display block 31', the lower roller hanging position sensor display block 32', the adjustment roller hanging position sensor display block 33', the upper roller simulation indicator device display block 38', the lower roller simulation indicator device display block 39' and the adjustment roller simulation indicator device display block 40', and the operating console model display block 10' is provided with the operating console hanging position sensor display block 67'.

[0194] When the upper roller main power switch 22, the upper roller operation power switch 23, the lower roller main power switch 24, the lower roller operation power switch 25, the adjustment roller main power switch 26 and the adjustment roller operation power switch 27 are respectively in the closed or open state, the upper roller main power synchronous action display block 45', the upper roller control power synchronous action display block 46', the lower roller main power indicator light display block 47', the lower roller control power indicator light display block 48', the adjustment roller main power indicator light display block 49' and the adjustment roller control power indicator light display block 50' are displayed in red or green respectively.

[0195] When the upper roller power supply hanging position sensor 28, the lower roller power supply hanging position sensor 29, the adjustment roller power supply hanging position sensor 30, the upper roller hanging position sensor 31, the lower roller hanging position sensor 32, the adjustment roller hanging position sensor 33 and the operating platform hanging position sensor 67 are respectively in the triggered or untriggered state, the upper roller power supply hanging position sensor display block 28', the lower roller power supply hanging position sensor display block 29', the adjustment roller power supply hanging position sensor display block 30', the upper roller hanging position sensor display block 31', the lower roller hanging position sensor display block 32', the adjustment roller hanging position sensor display block 33' and the operating platform hanging position sensor display block 67' are respectively displayed in red or green.

[0196] When the upper roller run / stop switch 63, the lower roller run / stop switch 64 and the adjustment roller run / stop switch 65 are in the start position, the upper roller simulation indicator device display block 38', the lower roller simulation indicator device display block 39' and the adjustment roller simulation indicator device display block 40' are displayed in red; when the upper roller safety switch 41, the lower roller safety switch 42 and the adjustment roller safety switch 43 are in the closed state, the upper roller simulation indicator device display block 38', the lower roller simulation indicator device display block 39' and the adjustment roller simulation indicator device display block 40' are displayed in green.

[0197] As a preferred embodiment, the touch screen 12 also includes 8 listing operation sequence indicator blocks 68 arranged in the same direction and corresponding to the listing operation and 8 delisting operation sequence indicator blocks 69 arranged in the same direction and corresponding to the delisting operation, and arrows in the same direction are set between adjacent listing operation sequence indicator blocks 68 and adjacent delisting operation sequence indicator blocks 69; before the listing operation, the 8 listing operation sequence indicator blocks 68 are all displayed in red, and before the delisting operation, the 8 delisting operation sequence indicator blocks 69 are respectively displayed in green; the 8 delisting operation sequence indicator blocks 69 are respectively displayed in green. Corresponding to steps S4, S6.3, S6.6, S6.9, S8.2, S8.4, S8.6 and S8.8 in the listing operation, when the above steps are completed respectively, the corresponding listing operation sequence indicator block 68 turns from red to green; the 8 delisting operation sequence indicator blocks 69 correspond to steps S3.2, S3.3, S3.5, S3.7, S5.1, S5.4, S5.7 and S7.1 in the delisting operation respectively. When the above steps are completed respectively, the corresponding delisting operation sequence indicator block 69 turns from green to red.

[0198] As a preferred embodiment, the touch screen 12 further includes an operation error sound and light indicator display block 52 ′, a timing and scoring display block 70 , an error count display block 71 and an error message prompt box 72 . The operation error sound and light indicator display block 52 ′ is green by default.

[0199] When the listing operation and the delisting operation are not performed correctly according to the steps of the two operations, the PLC78 controls the operation error sound and light indicator 52 to warn, and controls the operation error sound and light indicator display block 52' to change from green to red flashing, and the error number display block 71 records the number of times, and the error message prompt box 72 displays the error message. After the step is corrected, the PLC78 controls the operation error sound and light indicator 52 to stop warning, and controls the operation error sound and light indicator display block 52' to change from red flashing to green.

[0200] When in the training mode, the operation duration is recorded by PLC78, and the listing operation and the delisting operation are scored according to the pre-set scoring rules and displayed through the timing and scoring display block 70.

[0201] When in the assessment mode, the operation time is recorded by PLC78, and the listing operation and the delisting operation are scored according to the pre-set scoring rules and displayed through the timing and scoring display block 70. When the preset assessment time is reached, the timing and scoring are stopped and displayed through the timing and scoring display block 70.

Claims

1. A system for training and assessing safety inspection and maintenance of rolling equipment, characterized in that: include: A power distribution cabinet (1), comprising a PLC (78) and an upper roller main power switch (22), an upper roller operating power switch (23), a lower roller main power switch (24), a lower roller operating power switch (25), an adjustment roller main power switch (26), an adjustment roller operating power switch (27), an upper roller power sign position sensor (28), a lower roller power sign position sensor (29), an adjustment roller power sign position sensor (30), and an emergency stop control relay (73) electrically connected to the PLC (78); An operating table (10) includes a training table operation permission indicator light (53) electrically connected to the emergency stop control relay (73) and an upper roller main power indicator light (45), an upper roller control power indicator light (46), a lower roller main power indicator light (47), a lower roller control power indicator light (48), an adjustment roller main power indicator light (49), an adjustment roller control power indicator light (50), a test light button (51), an operation error sound and light indicator (52), an emergency stop button (54), an upper roller safety switch indicator light (55), a lower roller safety switch indicator light (56), an adjustment roller safety switch indicator light (57), an upper roller safety latch indicator light (58), a lower roller safety latch indicator light (59), an upper roller operation indicator light (60), a lower roller operation indicator light (61), an adjustment roller operation indicator light (62), an upper roller operation / stop switch (63), a lower roller operation / stop switch (64), an adjustment roller operation / stop switch (65), a training operation / assessment switch (66), an operating table hanging position sensor (67) and a touch screen (12); the training operation / assessment switch (66) is a three-position rotary switch including a stop position, a training start position and an assessment start position; the upper roller operation / stop switch (63), the lower roller operation / stop switch (64) and the adjustment roller operation / stop switch (65) are all two-position rotary switches including a stop position and a start position; A rolling device (13) comprises an upper roller (14) provided with an upper roller safety pin hole (35), a lower roller (17) provided with a lower roller safety pin hole (37), and an adjustment roller (19); the end of the upper roller (14) is connected to an upper roller motor (16) via a reducer (15); an upper roller safety pin position sensor (34) electrically connected to the PLC (78), an upper roller simulation indicating device (38), an upper roller hanging position sensor (31), and an upper roller safety switch (41) are respectively provided at the upper roller safety pin hole (35), the upper roller motor (16), and the reducer (15) connected to the upper roller motor (16); the end of the lower roller (17) is connected to the lower roller motor (18) via a reducer (15), and the lower roller A lower roller safety pin position sensor (36) electrically connected to the PLC (78), a lower roller simulation indicating device (39), a lower roller hanging position sensor (32) and a lower roller safety switch (42) are respectively provided at the safety pin hole (37), the lower roller motor (18) and the reducer (15) connected to the lower roller motor (18); the end of the adjustment roller (19) is connected to the adjustment roller motor (20) through the reducer (15), and an adjustment roller simulation indicating device (40), an adjustment roller hanging position sensor (33) and an adjustment roller safety switch (43) electrically connected to the PLC (78) are respectively provided at the adjustment roller motor (20) and the reducer (15) connected to the adjustment roller motor (20).

2. A system for training and assessing safety inspection and maintenance of rolling equipment according to claim 1, characterized in that: The touch screen (12) is connected to the PLC (78) via a communication cable (44); The power distribution cabinet (1) and the operating table (10) are respectively provided with a plurality of connection terminals (9); the rolling equipment (13) is provided with a machine-side junction box (8), and the machine-side junction box (8) is provided with a plurality of connection terminals (9); The upper roller main power switch (22), the upper roller operating power switch (23), the lower roller main power switch (24), the lower roller operating power switch (25), the adjustment roller main power switch (26), the adjustment roller operating power switch (27), the upper roller power sign position sensor (28), the lower roller power sign position sensor (29) and the adjustment roller power sign position sensor (30) in the power distribution cabinet (1) are connected to the corresponding input ports of the PLC (78) through the control cables (7) and the corresponding wiring terminals (9); The test light button (51), the emergency stop button (54), the upper roller run / stop switch (63), the lower roller run / stop switch (64), the adjustment roller run / stop switch (65), the training operation / assessment switch (66) and the operating table hanging position sensor (67) on the operating table (10) are respectively connected to the corresponding input port of the PLC (78) through the control cable (7) and the corresponding terminal block (9); The upper roller main power indicator light (45), the upper roller control power indicator light (46), the lower roller main power indicator light (47), the lower roller control power indicator light (48), the adjustment roller main power indicator light (49), the adjustment roller control power indicator light (50), the operation error sound and light indicator (52), the upper roller safety switch indicator light (55), the lower roller safety switch indicator light (56), the adjustment roller safety switch indicator light (57), the upper roller safety latch indicator light (58), the lower roller safety latch indicator light (59), the upper roller operation indicator light (60), the lower roller operation indicator light (61) and the adjustment roller operation indicator light (62) on the operating table (10) are respectively connected to the corresponding output ports of the PLC (78) through the control cable (7) and the corresponding wiring terminals (9); The upper roller safety pin position sensor (34), the upper roller hanging position sensor (31), the upper roller safety switch (41), the lower roller safety pin position sensor (36), the lower roller hanging position sensor (32), the lower roller safety switch (42), the adjustment roller hanging position sensor (33) and the adjustment roller safety switch (43) of the rolling device (13) are respectively connected to the corresponding input port of the PLC (78) through the control cable (7) and the corresponding terminal (9); The upper roller simulation indicating device (38), the lower roller simulation indicating device (39) and the adjustment roller simulation indicating device (40) of the rolling device (13) are respectively connected to the corresponding output ports of the PLC (78) through the control cables (7) and the corresponding connection terminals (9); The coil of the emergency stop control relay (73) is connected to the corresponding output port of the PLC (78) through the control cable (7) and the corresponding terminal (9), and the normally open contact of the emergency stop control relay (73) is connected in series with the operation permission indicator light (53) of the training platform.

3. The system for training and assessing safety inspection and maintenance of rolling equipment according to claim 2 is characterized in that: The device further includes an AC power supply (75), wherein the AC power supply (75) includes an AC220V alternating current power supply (74) and an isolation transformer (76) connected to the AC220V alternating current power supply (74) via an automatic switch (81), wherein the isolation transformer (76) is connected to a driving power supply (77), and the driving power supply (77) is respectively connected to the PLC (78), the touch screen (12), and various components connected to various output ports of the PLC (78) and provides power.

4. A system for training and assessing safety inspection and maintenance of rolling equipment according to claim 3, characterized in that: The PLC (78) is Mitsubishi FX2N-128MR-001; The auxiliary normally open point output side of the upper roller main power switch (22), the auxiliary normally open point output side of the lower roller main power switch (24), the auxiliary normally open point output side of the adjustment roller main power switch (26), the auxiliary normally open point output side of the upper roller operation power switch (23), the auxiliary normally open point output side of the lower roller operation power switch (25), the auxiliary normally open point output side of the adjustment roller operation power switch (27), the normally open point output side of the upper roller run / stop switch (63), the normally open point output side of the lower roller run / stop switch (64), the adjustment roller Run / Stop switch (65) normally open output side, test light button (51) normally open output side, emergency stop button (54) normally closed output side, upper roller safety switch (41) normally open output side, lower roller safety switch (42) normally open output side, adjustment roller safety switch (43) normally open output side, upper roller safety latch position sensor (34) normally open output side, lower roller safety latch position sensor (36) normally open output side, upper roller power supply latch position sensor (28) normally open output side, lower roller power supply latch position sensor (29) normally open output side, The normally open output side of the card position sensor (29), the normally open output side of the adjustment roller power card position sensor (30), the normally open output side of the upper roller card position sensor (31), the normally open output side of the lower roller card position sensor (32), the normally open output side of the adjustment roller card position sensor (33) and the normally open output side of the operation table card position sensor (67) are respectively connected to the PLC (78) input ports X3, X4, X5, X11, X12, X13, X17, X2 0 point, X21 point, X22 point, X23 point, X33 point, X34 point, X35 point, X36 point, X37 point, X40 point, X41 point, X42 point, X43 point, X44 point, X45 point, and X46 point are connected, the normally open point output side of the training operation / assessment switch (66) is respectively connected to the PLC (78) input port X50 point and X51 point, and the normally open point input side or normally closed point input side of each of the above components is connected in parallel and connected to the PLC (78) input port COM point; The driving power supply (77) is a DC24V power supply, and its 24+ terminal is connected to the COM point of the output port of the PLC (78); the output ports Y3, Y4, Y5, Y11, Y12, Y13, Y16, Y43, Y44 and Y22 of the PLC (78) are respectively connected to the input terminal of the upper roller main power indicator light (45), the input terminal of the lower roller main power indicator light (47), the input terminal of the adjustment roller main power indicator light (49), the input terminal of the upper roller control power indicator light (46), The input terminal of the lower roller control power indicator light (48), the input terminal of the adjustment roller control power indicator light (50), the input terminal of the operation error sound and light indicator (52), the input terminal of the upper roller safety latch indicator light (58), the input terminal of the lower roller safety latch indicator light (59) and the coil input terminal of the emergency stop control relay (73) are connected; the output port Y24 of the PLC (78) is respectively connected to the input terminal of the upper roller operation indicator light (60) and the upper roller simulation indicator device (38); the output port Y25 of the PLC (78) is respectively connected to the input terminal of the upper roller operation indicator light (60) and the upper roller simulation indicator device (38); The output port Y26 of the PLC (78) is respectively connected to the input end of the adjustment roller operation indicator light (62) and the input end of the adjustment roller simulation indicator device (40); the output port Y40 of the PLC (78) is respectively connected to the upper roller safety switch indicator light (55) and the input end of the upper roller simulation indicator device (38); the output port Y41 of the PLC (78) is respectively connected to the lower roller safety switch indicator light (56) and the input end of the lower roller simulation indicator device (38). The input end of the simulated indicating device (39) is connected; the output port Y42 of the PLC (78) is respectively connected to the input end of the adjusting roller safety switch indicator light (57) and the adjusting roller simulated indicating device (40); the 24- end of the driving power supply (77) is connected in parallel with the output ends of the above-mentioned indicator lights, indicators, indicating devices and coils; the 24+ end of the driving power supply (77), the normally open contact of the emergency stop control relay (73), the operation permission indicator light (53) and the 24- end of the driving power supply (77) are connected in sequence.

5. A training and assessment method for a roller press equipment safety inspection and maintenance training and assessment system according to any one of claims 1 to 4, wherein the training and assessment method comprises a training mode and an assessment mode, wherein both modes comprise a simulation of the inspection party, the maintenance party, and the production party jointly completing the inspection and maintenance operations of the roller press equipment in sequence, and wherein: Before operation, the actual operating state of the rolling equipment is simulated by the training system for safety inspection and hanging of the rolling equipment, that is, the PLC (78) in the power distribution cabinet (1) is in the operating state; the upper roller main power switch (22), the upper roller operation power switch (23), the lower roller main power switch (24), the lower roller operation power switch (25), the adjustment roller main power switch (26) and the adjustment roller operation power switch (27) are all in the closed state; the emergency stop control relay (73) is in the working state; the upper roller main power indicator light (45), the upper roller control power indicator light (46), the lower roller main power indicator light (47), the lower roller control power indicator light (48), the adjustment roller main power indicator light (49) and the adjustment roller control power indicator light (50) on the operating table (10) are in the light state; the operation error sound and light indicator (52) is in the sound and light alarm non-action state; the upper roller safety switch indicator light (55), the lower roller safety switch indicator light (56), the adjustment roller safety switch indicator light (57), the upper roller main power indicator light (45), the lower roller control power indicator light (46), the lower roller main power indicator light (47), the lower roller control power indicator light (48), the adjustment roller main power indicator light (49) and the adjustment roller control power indicator light (50) are in the light state The roller safety latch indicator light (58) and the lower roller safety latch indicator light (59) are in an off state; the upper roller operation indicator light (60), the lower roller operation indicator light (61) and the adjustment roller operation indicator light (62) are in an on state; the upper roller operation / stop switch (63), the lower roller operation / stop switch (64) and the adjustment roller operation / stop switch (65) are all in the start position; the training operation / assessment switch (66) is in the stop position; the touch screen (12) displays the operation status of the entire system in real time; The operation permission indicator light (53) is in an off state; the emergency stop button (54) is in a closed state; the upper roller simulation indicator device (38), the lower roller simulation indicator device (39) and the adjustment roller simulation indicator device (40) on the rolling device (13) are in a red light on and a buzzer sounding state, simulating the operation state of the upper roller (14), the lower roller (17) and the adjustment roller (19); the upper roller safety switch (41), the lower roller safety switch (42) and the adjustment roller safety switch (43) are in an off state; When the training mode is selected, the training operation / assessment switch (66) is operated to the training start position, and the operation permission indicator light (53) is lit through the control of the PLC (78); When the assessment mode is selected, the training operation / assessment switch (66) is operated to the assessment start position, and the operation permission indicator light (53) is lit through the control of the PLC (78); During the listing operation, the steps are as follows: S1, the maintenance party simulates accepting the maintenance task of the roller pressing equipment (13) of the inspection party; S2. The inspection party, maintenance party and production party simulate on-site safety briefing to confirm the maintenance items; S3. The manufacturer operates the switches on the operation table (10) and stops the machine in sequence, as follows: S3.

1. The production party operates the adjustment roller operation / stop switch (65) to the stop position, controls the adjustment roller operation indicator light (62) to turn off through the PLC (78), synchronously controls the adjustment roller simulation indicator device (40) to turn off the red light, stop the buzzer, stop the simulation adjustment roller motor (20), and controls the touch screen (12) to display the above status synchronously; S3.2, the production party operates the lower roller operation / stop switch (64) to the stop position, controls the lower roller operation indicator light (61) to turn off through the PLC (78), synchronously controls the lower roller simulation indicator device (39) to turn off the red light, stop the buzzer, simulate the lower roller motor (18) to stop running, and controls the touch screen (12) to display the above status synchronously; S3.3, the production party operates the upper roller operation / stop switch (63) to the stop position, controls the upper roller operation indicator light (60) to turn off through the PLC (78), synchronously controls the upper roller simulation indicator device (38) to turn off the red light, stop the buzzer, stop the simulation upper roller motor (16), and controls the touch screen (12) to display the above status synchronously; S4, the production party hangs a "stop sign" on the operating table (10) at a position corresponding to the operating table hanging position sensor (67), triggering the operating table hanging position sensor (67) to receive a signal and transmit the signal to the PLC (78), and the PLC (78) controls the touch screen (12) to synchronously display the above status; S5. The production party points and sings: "The operation console has been shut down and the sign is on", informing the inspection party and the maintenance party; S6. The inspection party confirms the contents of the tag and completes the power outage and tag operation in the power distribution cabinet (1) in sequence. The specific steps are as follows: S6.

1. The inspection party turns off the upper roller operation power switch (23), controls the upper roller control power indicator light (46) to go out through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S6.2, the inspection party turns off the upper roller main power switch (22), controls the upper roller main power indicator light (45) to go out through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S6.3, the inspection party hangs a "power outage sign" at the position corresponding to the upper roller power sign position sensor (28) on the power distribution cabinet (1). After the sign is hung correctly, the upper roller power sign position sensor (28) is triggered to receive a signal and transmit the signal to the PLC (78), and the PLC (78) controls the touch screen (12) to display the above status; S6.4, the inspection party turns off the lower roller operation power switch (25), controls the lower roller control power indicator light (48) to go out through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S6.5, the inspection party turns off the main power switch (24) of the lower roller, controls the main power indicator light (47) of the lower roller through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S6.6, the inspection party hangs a "power outage sign" at the position corresponding to the lower roller power sign position sensor (29) on the power distribution cabinet (1). After the sign is hung correctly, the lower roller power sign position sensor (29) is triggered to receive a signal and transmit the signal to the PLC (78), and the PLC (78) controls the touch screen (12) to display the above status; S6.7, the inspection party turns off the adjustment roller operation power switch (27), controls the adjustment roller control power indicator (50) to go out through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S6.8, the inspection party turns off the main power switch (26) of the adjustment roller, controls the main power indicator light (49) of the adjustment roller through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S6.9, the inspection party hangs a "power outage sign" at the position corresponding to the adjustment roller power supply hanging position sensor (30) on the power distribution cabinet (1). After the sign is hung correctly, the adjustment roller power supply hanging position sensor (30) is triggered to receive a signal and transmit the signal to the PLC (78), and the PLC (78) controls the touch screen (12) to display the above status; S7. The inspector points and sings: "The power distribution cabinet has been shut down and the sign is on", informing the manufacturer and the inspector; S8. The maintenance party confirms the contents of the sign and completes the safety interlock operation and signs in sequence beside the roller pressing equipment (13). The specific steps are as follows: S8.

1. The maintenance party closes the adjustment roller safety switch (43), controls the adjustment roller analog indicator device (40) to light up green through the PLC (78), controls the adjustment roller safety switch indicator light (57) to light up simultaneously, and controls the touch screen (12) to display the above status simultaneously; S8.2, the maintenance party hangs a "power outage sign" at the position corresponding to the adjustment roller hanging sign position sensor (33). After the sign is hung correctly, the adjustment roller hanging sign position sensor (33) is triggered to receive a signal and transmit the signal to the PLC (78), and the PLC (78) controls the touch screen (12) to display the above status; S8.3, the maintenance party closes the upper and lower roller safety switches (42), controls the lower roller analog indicator device (39) to light up green through the PLC (78), controls the lower roller safety switch indicator light (56) to light up simultaneously, and controls the touch screen (12) to display the above status simultaneously; S8.4, the maintenance party hangs a "power outage sign" at the position corresponding to the lower roller hanging sign position sensor (32). After the sign is hung correctly, the lower roller hanging sign position sensor (32) is triggered to receive a signal and transmit the signal to the PLC (78), and the touch screen (12) is controlled by the PLC (78) to display the above status; S8.5, the maintenance party closes the upper roller safety switch (41), controls the upper roller simulation indicator device (38) to light up green through the PLC (78), simultaneously controls the upper roller safety switch indicator light (55) to light up, and controls the touch screen (12) to display the above status simultaneously; S8.6, the maintenance party hangs a "power outage sign" at the position corresponding to the upper roller hanging sign position sensor (31). After the sign is hung correctly, the upper roller hanging sign position sensor (31) is triggered to receive a signal and transmit the signal to the PLC (78), and the touch screen (12) is controlled by the PLC (78) to display the above status; S8.7, insert the safety pin into the safety pin hole (35) of the upper roller in the inspection direction. After the safety pin is correctly inserted, the upper roller safety pin position sensor (34) is triggered to receive a signal and transmit the signal to the PLC (78). The upper roller safety pin indicator light (58) is controlled to light up by the PLC (78). Insert the safety pin into the safety pin hole (37) of the lower roller in the inspection direction. After the safety pin is correctly inserted, the lower roller safety pin position sensor (36) is triggered to receive a signal and transmit the signal to the PLC (78). The lower roller safety pin indicator light (59) is controlled to light up by the PLC (78). S8.8, PLC (78) controls the touch screen (12) to display the above state based on the superposition of signals received by the upper roller safety pin position sensor (34) and the lower roller safety pin position sensor (36); S9. The maintenance party completes the finger-singing action: "The roller pressing equipment has been repaired and listed", notifying the inspection party and the production party, and the three-party listing operation is completed; S10, the maintenance party starts simulating maintenance operations; During the delisting operation, the steps are as follows: S1. The maintenance party simulates the completion of the maintenance work, and the inspection party and the production party check and confirm the maintenance task of the roller pressing equipment (13); S2. Before resuming safe production on the simulated site, the inspection party, maintenance party, and production party shall confirm that the maintenance project has been completed; S3. The maintenance party completes the delisting operation of the roller pressing equipment (13) in order and turns off each safety switch, as follows: S3.

1. The maintenance party pulls out the safety pin in the safety pin hole (37) of the lower roller, triggering the lower roller safety pin position sensor (36) to lose the signal, and controls the lower roller safety pin indicator (59) to go out through the PLC (78); The maintenance party pulls out the safety pin in the upper roller safety pin hole (35), triggering the upper roller safety pin position sensor (34) to lose the signal, and controls the upper roller safety pin indicator light (58) to go out through the PLC (78); S3.2, the PLC (78) controls the touch screen (12) to display the above state according to the superposition of the lost signals of the upper roller safety pin position sensor (34) and the lower roller safety pin position sensor (36); S3.3, the maintenance party removes the "power outage sign" at the position corresponding to the upper roller hanging sign position sensor (31). After the sign is correctly removed, the upper roller hanging sign position sensor (31) is triggered to lose the signal, and the touch screen (12) is controlled by the PLC (78) to display the above status; S3.4, the maintenance party turns off the upper roller safety switch (41), controls the upper roller simulation indicator device (38) to turn off the green light through the PLC (78), simultaneously controls the upper roller safety switch indicator light (55) to turn off, and controls the touch screen (12) to display the above status simultaneously; S3.5, the maintenance party removes the "power outage sign" at the position corresponding to the lower roller hanging sign position sensor (32). After the sign is correctly removed, the lower roller hanging sign position sensor (32) is triggered to lose the signal, and the touch screen (12) is controlled by the PLC (78) to display the above status; S3.6, the maintenance party turns off the lower roller safety switch (42), controls the lower roller analog indicator device (39) to turn off the green light through the PLC (78), simultaneously controls the lower roller safety switch indicator light (56) to turn off, and controls the touch screen (12) to display the above status simultaneously; S3.7, the maintenance party adjusts the roller hanging sign position sensor (33) to the corresponding position and removes the "power outage sign". After the sign is removed correctly, the adjustment roller hanging sign position sensor (33) is triggered to lose the signal, and the touch screen (12) is controlled by the PLC (78) to display the above status; S3.8, the maintenance party turns off the adjustment roller safety switch (43), controls the adjustment roller analog indicator device (40) to turn off the green light through the PLC (78), simultaneously controls the adjustment roller safety switch indicator light (57) to turn off, and controls the touch screen (12) to display the above status simultaneously; S4. The maintenance party completes the finger-singing action: "The sign next to the roller press equipment has been removed" and informs the inspection party and the production party; S5. The inspection party confirms the delisting content and completes the delisting and power supply operations in the power distribution cabinet (1) in sequence. The specific steps are as follows: S5.

1. The inspection party removes the "power outage sign" at the position corresponding to the adjustment roller power sign position sensor (30). After the sign is correctly removed, the adjustment roller power sign position sensor (30) is triggered to lose the signal, and the touch screen (12) is controlled by the PLC (78) to display the above status; S5.2, the inspector turns on the main power switch (26) of the adjustment roller, controls the main power indicator light (49) of the adjustment roller through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S5.3, the inspector closes the adjustment roller operation power switch (27), controls the adjustment roller control power indicator (50) to light up through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S5.4, the inspection party removes the "power outage sign" at the position corresponding to the lower roller power sign position sensor (29). After the sign is correctly removed, the lower roller power sign position sensor (29) is triggered to lose the signal, and the touch screen (12) is controlled by the PLC (78) to display the above status; S5.5, the inspection party turns on the upper and lower roller main power switches (24), controls the lower roller main power indicator light (47) to light up through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S5.6, the inspection party turns on the upper and lower roller operating power switches (25), controls the lower roller control power indicator light (48) to light up through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S5.7, the inspection party removes the "power outage sign" at the position corresponding to the upper roller power sign position sensor (28). After the sign is correctly removed, the upper roller power sign position sensor (28) is triggered to lose the signal, and the touch screen (12) is controlled by the PLC (78) to display the above status; S5.8, the inspection party turns on the upper roller main power switch (22), controls the upper roller main power indicator light (45) to light up through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S5.9, the inspector turns on the upper roller operation power switch (23), controls the upper roller control power indicator (46) to light up through the PLC (78), and synchronously controls the touch screen (12) to display the above status; S6. The inspection party completes the pointing action: "The power distribution cabinet has been de-energized" and informs the production party and the maintenance party; S7, the production party confirms the delisting content and completes the delisting and resumption of production equipment operations in order at the operation table (10); S7.

1. The production party removes the "stop sign" at the position corresponding to the sign position sensor (67) on the operation table. After the sign is removed correctly, the sign position sensor (67) on the operation table is triggered to lose the signal, and the touch screen (12) is controlled by the PLC (78) to display the above status synchronously; S7.2, the production party operates the upper roller operation / stop switch (63) to the start position, controls the upper roller operation indicator light (60) to light up through the PLC (78), synchronously controls the upper roller simulation indicator device (38) to light up red, sounds a buzzer, simulates the upper roller motor (16) to start running, and controls the touch screen (12) to display the above status synchronously; S7.3, the production party operates the lower roller operation / stop switch (64) to the start position, controls the lower roller operation indicator light (61) to light up through the PLC (78), synchronously controls the lower roller simulation indicator device (39) to light up red and sound a buzzer, simulates the lower roller motor (18) to start running, and controls the touch screen (12) to display the above status synchronously; S7.4, the production party operates the adjustment roller operation / stop switch (65) to the start position, controls the adjustment roller operation indicator light (62) to light up through the PLC (78), synchronously controls the adjustment roller simulation indicator device (40) to light up red, sounds a buzzer, starts the simulation adjustment roller motor (20), and controls the touch screen (12) to display the above status synchronously; S8. The production party completes the gesture: "The operation console has been delisted and resumed operation," notifying the inspection party and the maintenance party. The delisting operation process for the three parties is complete. When the listing operation and the delisting operation are not performed correctly according to the steps of the two operations, the operation error sound and light indicator (52) is controlled by the PLC (78) to give an alarm. After the step is corrected, the operation error sound and light indicator (52) is controlled by the PLC (78) to stop giving an alarm.

6. The training and assessment method for the rolling equipment safety inspection and maintenance training and assessment system according to claim 5 is characterized by: The touch screen (12) includes: a power distribution cabinet model display block (1'), an operating console model display block (10'), a rolling equipment model display block (13'), an upper roller main power synchronous action display block (45'), an upper roller control power synchronous action display block (46'), a lower roller main power indicator light display block (47'), a lower roller control power indicator light display block (48'), an adjustment roller main power indicator light display block (49') and an adjustment roller control power indicator light display block (50'); an upper roller power sign position sensor display block (28') is provided on the power distribution cabinet model display block (1'). , a lower roller power supply hanging position sensor display block (29') and an adjustment roller power supply hanging position sensor display block (30'); the rolling equipment model display block (13') is provided with an upper roller hanging position sensor display block (31'), a lower roller hanging position sensor display block (32'), an adjustment roller hanging position sensor display block (33'), an upper roller simulation indicator device display block (38'), a lower roller simulation indicator device display block (39') and an adjustment roller simulation indicator device display block (40'); the operating console model display block (10') is provided with an operating console hanging position sensor display block (67'); When the upper roller main power switch (22), the upper roller operating power switch (23), the lower roller main power switch (24), the lower roller operating power switch (25), the adjustment roller main power switch (26), and the adjustment roller operating power switch (27) are respectively in a closed or open state, the upper roller main power synchronous action display block (45'), the upper roller control power synchronous action display block (46'), the lower roller main power indicator light display block (47'), the lower roller control power indicator light display block (48'), the adjustment roller main power indicator light display block (49'), and the adjustment roller control power indicator light display block (50') are respectively displayed in red or green; When the upper roller power supply hanging position sensor (28), the lower roller power supply hanging position sensor (29), the adjustment roller power supply hanging position sensor (30), the upper roller hanging position sensor (31), the lower roller hanging position sensor (32), the adjustment roller hanging position sensor (33), and the operating table hanging position sensor (67) are respectively in a triggered state or an untriggered state, the upper roller power supply hanging position sensor display block (28'), the lower roller power supply hanging position sensor display block (29'), the adjustment roller power supply hanging position sensor display block (30'), the upper roller hanging position sensor display block (31'), the lower roller hanging position sensor display block (32'), the adjustment roller hanging position sensor display block (33'), and the operating table hanging position sensor display block (67') are respectively displayed in red or green; When the upper roller run / stop switch (63), the lower roller run / stop switch (64) and the adjustment roller run / stop switch (65) are in the start position, the upper roller simulation indicator device display block (38'), the lower roller simulation indicator device display block (39') and the adjustment roller simulation indicator device display block (40') are displayed in red; when the upper roller safety switch (41), the lower roller safety switch (42) and the adjustment roller safety switch (43) are in the closed state, the upper roller simulation indicator device display block (38'), the lower roller simulation indicator device display block (39') and the adjustment roller simulation indicator device display block (40') are displayed in green.

7. The training and assessment method for the rolling equipment safety inspection and maintenance training and assessment system according to claim 6 is characterized by: The touch screen (12) further comprises 8 order-of-hanging operation indicator blocks (68) arranged in the same direction and corresponding to the order-of-hanging operation and 8 order-of-removing operation indicator blocks (69) arranged in the same direction and corresponding to the order-of-removing operation, and arrows in the same direction are provided between adjacent order-of-hanging operation indicator blocks (68) and adjacent order-of-removing operation indicator blocks (69); before the order-of-hanging operation, the 8 order-of-hanging operation indicator blocks (68) are all displayed in red, and before the order-of-removing operation, the 8 order-of-removing operation indicator blocks (69) are respectively displayed in green; the 8 order-of-removing operation indicator blocks (69) are respectively displayed in green. 9) respectively correspond to steps S4, S6.3, S6.6, S6.9, S8.2, S8.4, S8.6 and S8.8 in the listing operation. When the above steps are completed, the corresponding listing operation sequence indicator blocks (68) turn from red to green; the 8 delisting operation sequence indicator blocks (69) respectively correspond to steps S3.2, S3.3, S3.5, S3.7, S5.1, S5.4, S5.7 and S7.1 in the delisting operation. When the above steps are completed, the corresponding delisting operation sequence indicator blocks (69) turn from green to red.

8. A training and assessment method for a rolling equipment safety inspection and maintenance training and assessment system according to claim 6 or 7, characterized in that: The touch screen (12) further includes an operation error sound and light indicator display block (52'), a timing and scoring display block (70), an error number display block (71) and an error message prompt box (72), wherein the operation error sound and light indicator display block (52') is green by default; When the listing operation and the delisting operation are not performed correctly according to the steps of the two operations, the PLC (78) controls the operation error sound and light indicator (52) to warn, and controls the operation error sound and light indicator display block (52') to change from green to red flashing, and the error number display block (71) records the number of times, and the error message prompt box (72) displays the error message. After the step is corrected, the PLC (78) controls the operation error sound and light indicator (52) to stop warning, and controls the operation error sound and light indicator display block (52') to change from red flashing to green; When in the training mode, the operation duration is recorded by the PLC (78), and the hanging operation and the removing operation are scored according to a pre-set scoring rule and displayed on the timing and scoring display block (70); When in the assessment mode, the operation duration is recorded by the PLC (78), and the hanging operation and the removing operation are scored according to a preset scoring rule and displayed through the timing and scoring display block (70). When the preset assessment time is reached, the timing and scoring are stopped, and the time and scoring are displayed through the timing and scoring display block (70).

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