PLC control practical training device
By designing a PLC control training device, the problem of insufficient hands-on operation ability in PLC teaching was solved. Through physical demonstrations and wiring processes, the learning effect and hands-on ability of students were improved.
Patent Information
- Application Number
- CN202423268683.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Current PLC teaching lacks the cultivation of hands-on skills. Students cannot intuitively see the actual operation process of writing programs, nor can they learn the wiring process of actual equipment.
Design a PLC control training device, including a support frame, wiring module, power supply module, control module, human-machine interaction module, and training module. Through physical demonstration of the PLC program control process, students can wire and operate actual equipment.
Through physical demonstrations and hands-on operations, students' learning outcomes are improved, their practical skills are cultivated, and their understanding and memorization of PLC programs are enhanced.
Smart Images
Figure CN223897955U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to teaching device technical field, especially, relate to a PLC control practical training device. BACKGROUND
[0002] Programmable logic controller (PLC) is the industrial control device of the synthesis computer technique, automatic control technique and communication technique. Along with the development of intelligent manufacturing industry, PLC has been widely used in the automatic control of various production machinery and production process, is called the most important, the most popular, the most applied industrial control device, is considered as one of the three big pillars of modern industrial automation. PLC is a kind of device that requires high practicality, requires that the user has strong programming development ability and hands-on operation ability, however, due to the higher cost of PLC equipment on the industrial production line, at present, most students can only learn through some simulation software, cannot directly see the actual running process of the program written by oneself, leading to poor learning effect. In addition, the wiring process of actual devices such as sensor 613 cannot be learned on the simulation software, lacking the cultivation of students' hands-on operation ability. UTILITY MODEL CONTENTS
[0003] Based on this, the utility model aims at providing a PLC control practical training device.
[0004] A PLC control practical training device, comprising: a support, including a mesh plate with a plate surface extending in a vertical direction; a wiring module, installed on the back plate surface of the mesh plate, including a first wiring terminal row, a second wiring terminal row and a third wiring terminal row from top to bottom; a power supply module, installed on the front plate surface of the mesh plate, connected with the first wiring terminal row; a control module, connected with the first wiring terminal row, including a PLC host, the PLC host is installed on the front plate surface of the mesh plate, located above the power supply module, and the PLC host is connected to the second wiring terminal row; a human-computer interaction module, connected with the first wiring terminal row, including a touch screen, the touch screen is installed on the front plate surface of the mesh plate, located below the power supply module, and the touch screen is connected through the second wiring terminal row and the PLC host; a practical training module, installed on the front plate surface of the mesh plate, located below the touch screen, and connected with the first wiring terminal row; the practical training module includes a secondary control module and a work execution module, the secondary control module is connected with the second wiring terminal row and the third wiring terminal row respectively, and the work execution module is connected to the third wiring terminal row.
[0005] The PLC control practical training device can demonstrate the actual working process of PLC program control on specific equipment through the practical training module, thereby deepening learning and memory, and cultivating the operation ability of students through the wiring module to learn the wiring of actual equipment during practical training.
[0006] Further, the support further comprises a base and a support plate; the plate surface of the base is parallel to the horizontal plane, and the mesh plate is fixedly installed on the top surface of the base, and the plate surface thereof is perpendicular to the plate surface of the base; one end of the support plate abuts against the top surface of the base, and the other end abuts against the rear plate surface of the mesh plate, forming a support structure.
[0007] Through the above technical features, the support plate supports the mesh plate, avoiding the mesh plate from toppling over due to excessive weight of the mounted equipment.
[0008] Further, the support further comprises four universal wheels, which are arranged at the four corners of the bottom surface of the base.
[0009] Through the above technical solution, the PLC control practical training device is convenient to move.
[0010] Further, the power supply module comprises a power socket and a plurality of air switches; the incoming line end of the power socket is connected with an external power supply, the incoming line end of the air switch is connected with the outgoing line end of the power socket, and the outgoing line end of the air switch is connected with the control module, the human-computer interaction module and the practical training module via the first wiring terminal block respectively.
[0011] Through the above technical solution, the air switch performs leakage protection to protect users and devices.
[0012] Further, the control module further comprises a control button, which is connected to the PLC host via the second wiring terminal block.
[0013] Through the above technical solution, the user can start, emergency stop and perform other basic control on the devices in the practical training module through the control button.
[0014] Further, the human-computer interaction module further comprises a voice recognizer and a face recognizer, which are installed on the front plate surface of the mesh plate and located beside the touch screen; the voice recognizer and the face recognizer are connected to the PLC host via the second wiring terminal block respectively.
[0015] Through the above technical solution, the voice recognizer and the face recognizer identify the identity of the user, detect the use authority of the user, and can be used for student attendance.
[0016] Further, the material conveying module comprises a conveying mechanism, a direct current speed regulator and a sensor; the conveying mechanism, as the work execution module, is installed on the front plate surface of the mesh plate and is located below the touch screen and comprises a conveying belt and a rotating motor; the conveying belt is provided with a conveying surface conveying in the horizontal direction; the rotating motor drives the conveying belt to move;
[0017] The direct current speed regulator, as the secondary control module, is installed on the front plate surface of the mesh plate and is located below the touch screen and the conveying mechanism.
[0018] The sensor is installed on the front plate surface of the mesh plate and is located above the touch screen and the conveying mechanism and faces the conveying surface of the conveying belt; the sensor is connected to the second terminal block.
[0019] Through the above technical solution, the material conveying module is used for material conveying and the sensor is used for material detection in the teaching demonstration.
[0020] Further, the material conveying module further comprises an encoder; the encoder is installed on the transmission shaft of one of the transmission rollers of the conveying mechanism and is connected to the second terminal block.
[0021] Through the above technical solution, the encoder measures the angular displacement of one of the transmission rollers of the conveying mechanism and compares it with the linear displacement of the material to verify whether the control program is accurate.
[0022] Further, the planar motion module comprises a planar motion mechanism, a servo driver and a stepping driver; the two-dimensional motion mechanism, as the work execution module, is installed in front of the mesh plate and is located below the direct current speed regulator and comprises a work platform, a drawing board, a first track, a first driving linear motor, a first sliding block, a second track, a second driving linear motor, a second sliding block and a writing pen; the plate surface of the work platform is perpendicular to the plate surface of the mesh plate; the drawing board is placed on the work platform and its plate surface is parallel to the plate surface of the work platform; the first track is placed on the work platform and its extension direction is parallel to the plate surface of the mesh plate; the first sliding block is slidably arranged on the first track; the output shaft of the first driving linear motor is connected to the first sliding block; the second track is installed on the first sliding block and its extension direction is perpendicular to the plate surface of the mesh plate; the second sliding block is slidably arranged on the second track; the output shaft of the second driving linear motor is connected to the second sliding block; the writing pen is installed on the second sliding block and faces the drawing board.
[0023] The servo driver and the stepping driver, as the secondary control module, are installed on the front plate surface of the mesh plate and are located beside the direct current speed regulator.
[0024] Through the above technical scheme, the trajectory of the demonstration writing pen moving under the drawing board is demonstrated in the planar motion module, and compared with the preset trajectory to verify whether the control program is accurate.
[0025] Further, the three-phase motor module includes a three-phase asynchronous motor and a frequency converter; the three-phase asynchronous motor serves as the work execution module and is placed on the top surface of the base, and the frequency converter serves as the secondary control module and is installed on the front plate surface of the mesh plate and located beside the stepping driver.
[0026] Through the above technical scheme, the three-phase asynchronous motor is controlled to move by the control program, and the working states of the three-phase asynchronous motor in forward rotation, reverse rotation and point motion are demonstrated. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 A perspective structural schematic view of the PLC control practical training device is provided in the utility model;
[0028] Figure 2 A partial front view of the PLC control practical training device projected along a direction perpendicular to the mesh plate is provided in the utility model;
[0029] Figure 3 A partial front view of the PLC control practical training device projected along a direction perpendicular to the mesh plate is provided in the utility model;
[0030] Figure 4 A partial rear view of the PLC control practical training device projected along a direction perpendicular to the mesh plate is provided in the utility model;
[0031] Figure 5 A perspective structural schematic view of the conveying mechanism is provided in the utility model;
[0032] Figure 6 A perspective structural schematic view of the planar motion mechanism is provided in the utility model. DETAILED DESCRIPTION
[0033] The inventor provides a PLC control practical training device in view of the defects of lacking in training of students' hands-on operation ability in the existing PLC teaching mode, which is equipped with a PLC host, a wiring module, a man-machine interaction module, a practical training module and other specific devices, can demonstrate the control content of the PLC control program through the physical demonstration, and students can learn the wiring mode of the specific devices and train the hands-on operation ability. The following is a specific embodiment of the PLC control practical training device of the utility model:
[0034] Please refer to Figures 1 to 6 , Figure 1 A perspective structural schematic view of the PLC control practical training device is provided in the utility model; Figure 2A partial front view of the PLC control training device provided by this utility model, projected along the direction perpendicular to the perforated plate. Figure 3 A partial front view of the PLC control training device provided by this utility model, projected along the direction perpendicular to the perforated plate. Figure 4 A partial rear view of the PLC control training device provided by this utility model, projected along the direction perpendicular to the perforated plate. Figure 5 A three-dimensional structural diagram of the conveying mechanism provided by this utility model; Figure 6 A three-dimensional structural diagram of the planar motion mechanism provided by this utility model.
[0035] This utility model provides a PLC control training device, including a bracket 1, a wiring module 2, a power supply module 3, a control module 4, a human-machine interaction module 5, and a training module 6.
[0036] Please refer to Figure 1 The bracket 1 includes a base 11, a perforated plate 12, a support plate 13, and casters 14. The base 11 is horizontally oriented with its surface parallel to the horizontal plane. The perforated plate 12 is fixedly mounted on the top surface of the base 11, with its surface perpendicular to the base 11. The perforated plate 12 has several grids on its surface. The wiring module 2, power supply module 3, control module 4, human-machine interface module 5, and training module 6 are mechanically fixed to the perforated plate 12 using bolts or other methods. One end of the support plate 13 abuts against the top surface of the base 11, and the other end abuts against the rear surface of the perforated plate 12, forming a triangular support structure to prevent the perforated plate 12 from tipping over when carrying excessive equipment. Four casters 14 are located at the four corners of the bottom surface of the base 11 for easy movement of the PLC-controlled training device.
[0037] Please refer to Figure 4 The wiring module 2 is installed on the rear panel of the perforated plate to utilize the space on the rear panel for complex wiring, saving installation space. The wiring module 2, from top to bottom, includes a first terminal block 21, a second terminal block 22, and a third terminal block 23. Each of the first, second, and third terminal blocks 23 has several horizontally arranged wiring ports. Specifically, the first terminal block 21 is used to connect the power supply module 3 to the control module 4, the human-machine interface module 5, and the training module 6; the second terminal block 22 is used to connect the control module 4 to the human-machine interface module 5 and the training module 6; and the third terminal block 23 is used to connect the communication lines of the various training devices in the training module 6. Connecting cables with different functions to different terminal blocks facilitates cable management and makes troubleshooting easier.
[0038] Please refer to Figure 1 and Figure 2 The power supply module 3 includes a power socket 31, several air switches 32, and a switching power supply 33. The power socket 31 and the air switches 32 are mounted on the front panel of the mesh plate 12 and are close to each other. The switching power supply 33 is mounted on the rear panel of the mesh plate 12 and is located above the first terminal block 21. The power socket 31 is connected to an external power source via a wire to supply power to the PLC control training device provided by this utility model. The incoming terminal of the air switch 32 is connected to the power socket 31 via a wire, and its outgoing terminal is connected to each training device in the training module 5 at the first terminal block 21 via a wire. The air switch 32 is a leakage current protector, which provides leakage protection and can also be manually switched on and off, turning on when using the corresponding training device and turning off when not in use. The switching power supply 33 can convert 220V AC power to 24V DC power. Its incoming terminal is connected to the power socket 31 via a wire, and its outgoing terminals are respectively connected to each device in the control module 3 and the human-machine interaction module 4 at the first terminal block 21 via wires.
[0039] The PLC control module 4 includes a PLC host 41 and control buttons 42. The PLC host 41 and control buttons 42 are mounted on the front panel of the perforated plate 12, with the PLC host 41 located above the power socket 31 and the control buttons 42 located to the right of the power socket 31. The PLC host 41 is connected to the second terminal block 22. Each device in the human-machine interface module 5 and the training module 6 is connected to the second terminal block 22 via wires, allowing the PLC host 41 to control the devices in both modules. The control buttons 42 are connected to the PLC host 41 via wires at the second terminal block 22, enabling basic functions such as start, stop, emergency stop, and mode switching for each device in the training module 5.
[0040] The human-computer interaction module 5 includes a touchscreen 51 and an identity recognition device. The touchscreen 51 and the identity recognition device are mounted on the front panel of the perforated plate 12, below the power socket 31. The touchscreen 51 is connected to the terminal block 22 via wires. Users input information on the touchscreen 51, which is then used by the PLC host 41 to control relevant training equipment, and / or the PLC host 41 displays information to provide feedback to the user via the touchscreen 51. The identity recognition device is connected to the second terminal block 22 via wires and is used to obtain the user's identity, determine whether the user has the authority to issue relevant commands, and can also be used for student attendance tracking. In this embodiment, the identity recognition device includes a voice recognition device 52 and a face recognition device 53, which identify the user based on voice and / or face.
[0041] Please refer to Figure 1 , Figure 3 , Figure 5 and Figure 6 The training module 6 demonstrates the actual working process to students using specific equipment. It includes a secondary control module and a work execution module. The input terminal of the secondary control module is connected to the second terminal block 22 to connect to the PLC host 41, and the output terminal of the secondary control module is connected to the third terminal block 23. The input terminal of the work execution module is also connected to the third terminal block 23. Thus, the secondary control module controls the work execution module according to the program of the PLC host 41. In this embodiment, the training module 6 includes a material conveying module 61, a planar motion module 62, and a three-phase motor module 63.
[0042] The material conveying module 61 is mounted on the front panel of the perforated plate 12, located below the touch screen 51, and includes a conveying mechanism 611, a DC speed controller 612, a sensor 613, and an encoder 614. The DC speed controller 612 serves as the secondary control module, and the conveying mechanism 611 serves as the work execution module. The DC speed controller 612 controls the conveying mechanism 611 to perform conveying operations according to the program of the PLC host 41. The sensor 613 and the encoder 614 monitor the operation of the conveying mechanism 611 and feed the results back to the PLC host 41. The conveying mechanism 611 includes a first drive roller 6111, a second drive roller 6112, a third drive roller 6113, a conveyor belt 6114, a belt 6115, and a rotating motor 6116. The axes of the first drive roller 6111, the second drive roller 6112, and the third drive roller 6113 are perpendicular to the front panel of the perforated plate 12. The first drive roller 6111 and the second drive roller 6112 are connected by the conveyor belt 6114, and the second drive roller 6112 and the third drive roller 6113 are connected by the belt 6115. The output shaft of the rotary motor 6116 is connected to the third drive roller 6113 to drive the conveying mechanism 611. The axes of the first drive roller 6111 and the second drive roller 6112 are on the same horizontal plane, so that the conveyor belt 6114 forms a horizontal conveying surface. The material is placed on the conveyor belt 6114 and conveyed horizontally.
[0043] The DC speed controller 612 is installed below the transmission mechanism 611. Its input end is connected to the second terminal block 22 via a wire to connect to the PLC host 41. Its output end is connected to the third terminal block 23 via a wire. The rotating motor 6116 is connected to the third terminal block 23 via a wire to control the rotating motor 6116.
[0044] Several sensors 613 are disposed above and facing the conveyor belt 6114. The sensors 613 are connected to the second terminal block 22 via wires to connect to the PLC host 41. The sensors 613 may be one or more of the existing technology, such as position detectors, color detectors, material detectors, and vision detectors, to detect the material and / or color of the material, and the detection results are fed back to the user on the touch screen 51 via the PLC host 41.
[0045] The encoder 614 is connected to the first drive roller 6111 and / or the second drive roller 6112, and is connected to the second terminal block 22 via a wire to connect to the PLC host 41. The encoder 614 measures the angular displacement of the first drive roller 6111 and / or the second drive roller 6112, and compares and verifies it with the linear displacement of the material.
[0046] The planar motion module 62 is installed in front of the front panel of the perforated plate 12, below the conveying mechanism 611, and includes a planar motion mechanism 621, a servo driver 622, and a stepper driver 623. The servo driver 622 and the stepper driver 623 serve as secondary control modules, while the planar motion mechanism 621 serves as the execution module. The servo driver 622 and the stepper driver 623 control the movement of the planar motion mechanism 621 according to the program of the PLC host 41. The planar motion mechanism 621 includes a work platform 6211, a drawing board 6212, a first track 6213, a first drive linear motor 6214, a first slider 6215, a second track 6216, a second drive linear motor 6217, a second slider 6218, and a writing pen 6219. The work platform 6211 is mounted on the base 11 via a support rod (not shown in the figure), and its surface is perpendicular to the surface of the perforated plate 12. The drawing board 6212 is placed on the working platform 6211, with its surface parallel to the surface of the working platform 6211. The first track 6213 is placed on the working platform 6211, and its extension direction is parallel to the plane of the perforated plate 12. The first slider 6215 is slidably disposed on the first track 6213. The output shaft of the first driving linear motor 6214 is connected to the first slider 6215, driving the first slider 6215 to move within the first track 6213. The second track 6216 is mounted on the first slider 6215, and the extension direction of the second track 6216 is perpendicular to the plane of the perforated plate 12. The second slider 6218 is slidably disposed on the second track 6216. The output shaft of the second driving linear motor 6217 is connected to the second slider 6218, driving the second slider 6218 to move within the second track 6216. The writing pen 6219 is mounted on the second slider 6218 and faces the drawing board 6212. Under the action of the first driving linear motor 6214 and the second driving linear motor 6217, the writing pen 6219 can draw corresponding trajectories on the drawing board 6212.
[0047] The input terminals of the servo driver 622 and the stepper driver 623 are respectively connected to the second terminal block 22 via wires to connect to the PLC host 41. The output terminals of the servo driver 622 and the stepper driver 623 are respectively connected to the third terminal block 23 via wires. The first drive linear motor 6214 and the second drive linear motor 6217 are connected to the third terminal block 23 via wires and are respectively connected to the servo driver 622 and the stepper driver 623. The PLC host 41 controls the position of the output shafts of the first drive linear motor 6214 and the second drive linear motor 6217 through the servo driver 622 and the stepper driver 623, so that the writing pen 6219 draws a set trajectory on the drawing board 6212.
[0048] The three-phase motor module 63 includes a three-phase asynchronous motor 631 and a frequency converter 632. The frequency converter 632 serves as a secondary control module, and the three-phase asynchronous motor 631 serves as a work execution module. The frequency converter 632 controls the movement of the three-phase asynchronous motor 631 according to the program of the PLC host 41. The three-phase asynchronous motor 631 is placed on the top surface of the base 11, and the frequency converter 632 is mounted on the front panel of the perforated plate 12, located to the right of the servo driver 622. The input terminal of the frequency converter 632 is connected to the second terminal block 22 via a wire to connect with the PLC host 41, and its output terminal is connected to the third terminal block 23 via a wire. The three-phase asynchronous motor 631 is connected to the third terminal block 23 via a wire and is connected to the frequency converter 632. The PLC host controls the three-phase asynchronous motor 631 to rotate forward, reverse, or jog via the frequency converter 632.
[0049] The PLC control training device provided by this utility model has the following usage methods:
[0050] Example 1: When the material conveying module 61 is activated, the teacher downloads the prepared PLC program to the PLC host 41 and controls the DC speed controller 612 and sensor 613 through the touch screen 51 to complete the process of conveying materials horizontally along the conveyor belt 6114 and detecting the material's material and / or color characteristics by the sensor 613.
[0051] Example 2: When the material conveying module 61 is activated, the student downloads the PLC program he wrote to control the conveyor belt 6114 to transport materials a specified distance within a specified time to the PLC host 41. The student controls the conveying mechanism 611 to run through the program, and compares the displacement information of the encoder 614 with the position information detected by the position detector to verify whether the PLC control program written by the student is correct.
[0052] Example 3: Activate the planar motion module 62. The student downloads the PLC program, which controls the writing pen 6219 to write a Chinese character and / or letter and / or graphic on the drawing board 6212, to the PLC host 41. The program controls the planar motion mechanism 621 to run. The student compares the motion trajectory of the writing pen 6219 on the drawing board 6212 with the set Chinese character and / or letter and / or graphic to verify whether the PLC control program written by the student is correct.
[0053] Example 4: When the three-phase motor module 63 is activated, the teacher downloads the prepared PLC program to the PLC host 41 and controls the frequency converter 632 through the touch screen 51 to complete the motion control process demonstration of the three-phase asynchronous motor 631, such as forward rotation, reverse rotation, and jogging.
[0054] Compared with existing technologies, the PLC control training device provided by this utility model has the following advantages:
[0055] (1) Equipped with working modules such as material conveying module 61, planar motion module 62, and three-phase motor module 63, it can demonstrate the working process of PLC program control through physical objects, thereby deepening students' learning and memory.
[0056] (2) The first terminal block 21, the second terminal block 22 and the third terminal block 23 are set as wiring points, so that students can learn the wiring process of physical equipment and cultivate hands-on operation ability.
[0057] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.
Claims
1. A PLC control training device, characterized in that, include: The support (1) includes a perforated plate (12) extending vertically along the plate surface; The wiring module (2) is installed on the rear plate of the mesh plate (12) and includes, from top to bottom, a first terminal block (21), a second terminal block (22) and a third terminal block (23). The power supply module (3) is installed on the front panel of the mesh plate (12) and connected to the first terminal block (21); The control module (4) is connected to the first terminal block (21) and includes a PLC host (41). The PLC host (41) is installed on the front panel of the mesh plate (12) and located above the power supply module (3). The PLC host (41) is connected to the second terminal block (22). The human-machine interaction module (5) is connected to the first terminal block (21) and includes a touch screen (51). The touch screen (51) is installed on the front panel of the mesh plate (12) and located below the power supply module (3). The touch screen (51) is connected to the PLC host (41) through the second terminal block (22). The training module (6) is installed on the front panel of the perforated plate (12), located below the touch screen (51), and connected to the first terminal block (21). The training module (6) includes a sub-control module and a work execution module. The sub-control module is connected to the second terminal block (22) and the third terminal block (23) respectively, and the work execution module is connected to the third terminal block (23).
2. The PLC control training device according to claim 1, characterized in that: The bracket (1) also includes a base (11) and a support plate (13); the plate surface of the base (11) is parallel to the horizontal plane, and the perforated plate (12) is fixedly installed on the top surface of the base (11), with its plate surface perpendicular to the plate surface of the base (11); one end of the support plate (13) abuts against the top surface of the base (11), and the other end abuts against the rear plate surface of the perforated plate (12), forming a support structure.
3. The PLC control training device according to claim 2, characterized in that: The bracket (1) also includes four casters (14), which are located at the four corners of the bottom surface of the base (11).
4. The PLC control training device according to claim 1, characterized in that: The power supply module (3) includes a power socket (31) and several air switches (32). The power socket (31) is connected to an external power source. The air switches (32) are connected to the power socket (31) and the air switches (32) are connected to the power socket (31) via the first terminal block (21). The air switches (32) are connected to the control module (4), the human-machine interaction module (5), and the training module (6) respectively.
5. The PLC control training device according to claim 1, characterized in that: The control module (4) also includes a control button (42), which is connected to the PLC host (41) via the second terminal block (22).
6. The PLC control training device according to claim 1, characterized in that: The human-computer interaction module (5) further includes a voice recognition device (52) and a face recognition device (53). The voice recognition device (52) and the face recognition device (53) are installed on the front panel of the mesh plate (12) and located next to the touch screen (51). The voice recognition device (52) and the face recognition device (53) are respectively connected to the PLC host (41) via the second terminal block (22).
7. The PLC control training device according to claim 1, characterized in that: The training module (6) includes a material conveying module (61), which includes a conveying mechanism (611), a DC speed controller (612), and a sensor (613). The conveying mechanism (611) serves as the work execution module and is installed on the front panel of the perforated plate (12), located below the touch screen (51). It includes a conveyor belt (6114) and a rotating motor (6116). The conveyor belt (6114) has a conveying surface that conveys in a horizontal direction, and the rotating motor (6116) drives the conveyor belt (6114) to move. The DC speed controller (612) serves as the secondary control module and is installed on the front panel of the perforated plate (12), located below the touch screen transmission mechanism (611). The sensor (613) is mounted on the front panel of the perforated plate (12), above the touch screen conveying mechanism (611), facing the conveying surface of the conveyor belt (6114), and the sensor (613) is connected to the second terminal block (22).
8. The PLC control training device according to claim 7, characterized in that: The material conveying module (61) also includes an encoder (614), which is mounted on the drive shaft of one of the drive rollers of the conveying mechanism (611) and connected to the second terminal block (22).
9. The PLC control training device according to claim 7, characterized in that: The training module (6) also includes a planar motion module (62), which includes a planar motion mechanism (621), a servo driver (622), and a stepper driver (623). The planar motion mechanism (621), serving as the work execution module, is installed in front of the perforated plate (12) and below the DC speed controller (612). It includes a work platform (6211), a drawing board (6212), a first track (6213), a first driving linear motor (6214), a first slider (6215), a second track (6216), a second driving linear motor (6217), a second slider (6218), and a writing pen (6219). The surface of the work platform (6211) is perpendicular to the surface of the perforated plate (12). The drawing board (6212) is placed on the work platform (6211), with its surface parallel to the surface of the work platform (6211). The first track (6213) is placed on the work platform (6211). On 211), its extension direction is parallel to the surface of the perforated plate (12), the first slider (6215) is slidably disposed on the first track (6213), the output shaft of the first driving linear motor (6214) is connected to the first slider (6215); the second track (6216) is mounted on the first slider (6215), and the extension direction of the second track (6216) is perpendicular to the surface of the perforated plate (12), the second slider (6218) is slidably disposed on the second track (6216), the output shaft of the second driving linear motor (6217) is connected to the second slider (6218), and the writing pen (6219) is mounted on the second slider (6218) and faces the drawing board (6212). The servo driver (622) and the stepper driver (623) are the secondary control modules, installed on the front panel of the perforated plate (12), next to the DC speed controller (612).
10. The PLC control training device according to claim 2, characterized in that: The training module (6) also includes a three-phase motor module (63), which includes a three-phase asynchronous motor (631) and a frequency converter (632). The three-phase asynchronous motor (631) serves as the work execution module and is placed on the top surface of the base (11). The frequency converter (632) serves as the auxiliary control module and is installed on the front panel of the perforated plate (12). The training module (6) also includes a stepper driver (623), which is installed on the front panel of the perforated plate (12). The frequency converter (632) is located next to the stepper driver (623).