Adhesive tape machine protection device based on network and distributed PLC control

Abstract

The utility model belongs to the technical field of adhesive tape conveying systems, and particularly relates to an adhesive tape machine protection device based on network and distributed PLC control, which comprises a PLC master station, the input end of the PLC master station is electrically connected with the output end of a network switch, the input end of the network switch is electrically connected with the output end of a PLC substation, and the output end of the PLC substation is electrically connected with the output end of the PLC substation. The input end of the PLC substation is electrically connected with the output end of a relay, the input end of the relay is electrically connected with the output end of a protection switch, the output end of the PLC master station is electrically connected with a field upper computer, and the other output end of the PLC master station is electrically connected with an adhesive tape machine PLC; the device monitors the state of the field protection switch in real time, manages the state of the field protection switch, counts and records the state in the comprehensive protection device system, and can check and export the equipment state information at any time.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyor systems, and particularly refers to a belt conveyor protection device based on network and distributed PLC control. Background Technique

[0002] As a widely used material transmission device in industrial production, the operation stability and safety of a belt conveyor are crucial for production efficiency. The comprehensive protection device of a belt conveyor refers to a system integrating multiple protection functions, aiming to monitor the operation status of the belt conveyor in real time, including abnormal conditions such as belt deviation, blockage, tearing, and stall, and effectively prevent equipment damage and safety accidents through an automatic alarm and shutdown mechanism.

[0003] However, traditional comprehensive protection devices for belt conveyors mostly adopt mechanical limit hard contact protection switches. Such devices pose significant challenges in long-distance signal acquisition and transmission. Since hard contact signals are easily affected by on-site electromagnetic interference and have limited transmission distances, signal attenuation and distortion problems frequently occur in large-scale and long-distance belt conveyor application scenarios, increasing the difficulty and cost of fault troubleshooting. In addition, the mechanical limit structure itself also has the risk of wear and failure, further restricting the application scope and reliability of traditional protection devices. Content of the Utility Model

[0004] In order to solve the above problems, the utility model proposes a belt conveyor protection device based on network and distributed PLC control.

[0005] The technical solution adopted by the utility model is as follows: The utility model provides a belt conveyor protection device based on network and distributed PLC control, including a PLC master station. The input end of the PLC master station is electrically connected to the output end of a network switch. The input end of the network switch is electrically connected to the output end of a PLC slave station. The input end of the PLC slave station is electrically connected to the output end of a relay. The input end of the relay is electrically connected to the output end of a protection switch. The output end of the PLC master station is electrically connected to an on-site upper computer, and another output end of the PLC master station is electrically connected to a belt conveyor PLC.

[0006] Furthermore, a power supply module is provided inside the PLC slave station. The PLC slave station is composed of an I / O input module, and the power supply module is arranged on one side of the I / O input module.

[0007] Further, a pull cord switch is provided inside the protection switch, a deviation switch is provided inside the protection switch, the deviation switch is arranged on one side of the pull cord switch, a blockage switch is provided inside the protection switch, the blockage switch is arranged on one side of the deviation switch, a tear switch is provided inside the protection switch, the tear switch is arranged on one side of the blockage switch, a stall switch is provided inside the protection switch, and the stall switch is arranged on one side of the tear switch.

[0008] Further, the protection switch is an integrated protection device.

[0009] The beneficial effects achieved by the present utility model with the above structure are as follows:

[0010] (1) The status of the on-site protection switch is monitored in real time, and at the same time, the status management of the on-site protection switch is carried out, and the status in the integrated protection device system is statistically recorded, and the device status information can be viewed and exported at any time.

[0011] (2) A relay is used to electrically isolate the signals of the protection switch, reducing the direct impact of the on-site complex electrical environment on the I / O input module composition, reducing the equipment failure rate caused by electrical interference, and extending the service life of the PLC substation and the I / O input module composition.

[0012] (3) The signal is converted into an optical signal through a network switch for long-distance transmission, which not only improves the anti-interference ability of the signal, but also expands the signal transmission distance, enabling the device to be flexibly deployed within a larger range, facilitating system expansion and maintenance.

[0013] (4) The PLC master station makes logical judgments on the collected signals and sends the processing results to the belt conveyor PLC and the on-site upper computer respectively, realizing the real-time monitoring and intelligent management of the operation status of the belt conveyor. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic structural diagram of a belt conveyor protection device based on network and distributed PLC control of the present utility model.

[0016] Among them, 1. Protection switch, 2. PLC substation, 3. Network switch, 4. PLC master station, 5. On-site host computer, 6. Belt conveyor PLC, 7. Relay, 8. Pull cord switch, 9. Deviation switch, 10. Blockage switch, 11. Tear switch, 12. Stall switch, 13. Power supply module, 14. I / O input module assembly. Detailed implementation manner

[0017] In order to make the objectives, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the drawings in the specific embodiments of the present utility model. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0018] As Figure 1 shown, the present utility model provides a belt conveyor protection device based on network and distributed PLC control, including a PLC master station 4. The input end of the PLC master station 4 is electrically connected to the output end of the network switch 3. The input end of the network switch 3 is electrically connected to the output end of the PLC substation 2. A power supply module 13 is provided in the PLC substation 2. An I / O input module assembly 14 is provided in the PLC substation 2. The power supply module 13 is disposed on one side of the I / O input module assembly 14. The input end of the PLC substation 2 is electrically connected to the output end of the relay 7. The input end of the relay 7 is electrically connected to the output end of the protection switch 1. A pull cord switch 8 is provided in the protection switch 1. A deviation switch 9 is provided in the protection switch 1. The deviation switch 9 is disposed on one side of the pull cord switch 8. A blockage switch 10 is provided in the protection switch 1. The blockage switch 10 is disposed on one side of the deviation switch 9. A tear switch 11 is provided in the protection switch 1. The tear switch 11 is disposed on one side of the blockage switch 10. A stall switch 12 is provided in the protection switch 1. The stall switch 12 is disposed on one side of the tear switch 11. The output end of the PLC master station 4 is electrically connected to the on-site host computer 5. Another output end of the PLC master station 4 is electrically connected to the belt conveyor PLC 6. The protection switch 1 is a comprehensive protection device.

[0019] During specific use, protection switches 1 are installed along the belt conveyor, including pull cord switches 8, deviation switches 9, blockage switches 10, tear switches 11, and stall switches 12. The PLC substation 2 collects the contact states of the protection switches 1. To protect the PLC substation 2 and extend the service life of the I / O input module assembly 14, the signal collection needs to be electrically isolated through a relay 7. After the signal is collected, it is converted into an optical signal by a network switch 3 for long-distance transmission. Before entering the PLC master station 4, the signal is converted by the network switch 3. The converted signal enters the CPU unit of the PLC master station 4 for logical judgment. The signal processed by the PLC master station 4 is sent to the belt conveyor PLC 6 on the one hand, and the belt conveyor CPU performs status analysis and logical judgment. On the other hand, it enters the on-site upper computer 5 to monitor the status of the on-site protection switches in real time, manage the status of the on-site protection switches, and statistically record the status within the comprehensive protection device system. The device status information can be viewed and exported at any time. The above is the overall working process of the present utility model. Just repeat this step the next time it is used.

[0020] As can be seen from the above embodiments, the beneficial effects of the present utility model are as follows:

[0021] The status of the on-site protection switches is monitored in real time. At the same time, the status of the on-site protection switches is managed, and the status within the comprehensive protection device system is statistically recorded. The device status information can be viewed and exported at any time. A relay is used to electrically isolate the signals of the protection switches, reducing the direct impact of the complex on-site electrical environment on the I / O input module assembly, reducing the equipment failure rate caused by electrical interference, and extending the service life of the PLC substation and the I / O input module assembly. The signal is converted into an optical signal by a network switch for long-distance transmission, which not only improves the anti-interference ability of the signal but also expands the signal transmission distance, enabling the device to be flexibly deployed within a larger range, facilitating system expansion and maintenance. The PLC master station performs logical judgment on the collected signals and sends the processing results to the belt conveyor PLC and the on-site upper computer respectively, realizing real-time monitoring and intelligent management of the operating status of the belt conveyor.

[0022] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A belt conveyor protection device based on network and distributed PLC control, characterized in that: The invention comprises a PLC master station (4), wherein the input end of the PLC master station (4) is electrically connected to the output end of a network switch (3), the input end of the network switch (3) is electrically connected to the output end of a PLC substation (2), the input end of the PLC substation (2) is electrically connected to the output end of a relay (7), the input end of the relay (7) is electrically connected to the output end of a protection switch (1), the output end of the PLC master station (4) is electrically connected to an on-site host computer (5), and the other output end of the PLC master station (4) is electrically connected to a tape machine PLC (6).

2. According to claim 1, a belt conveyor protection device based on network and distributed PLC control is characterized in that: The PLC substation (2) is provided with a power module (13), the PLC substation (2) is provided with an I / O input module component (14), and the power module (13) is arranged on one side of the I / O input module component (14).

3. According to claim 2, a belt conveyor protection device based on network and distributed PLC control is characterized in that: The protection switch (1) is provided with a pull-rope switch (8), and a deviation switch (9) is provided in the protection switch (1), and the deviation switch (9) is arranged on one side of the pull-rope switch (8). The protection switch (1) is provided with a blocking switch (10), and the blocking switch (10) is arranged on one side of the deviation switch (9). The protection switch (1) is provided with a tearing switch (11), and the tearing switch (11) is arranged on one side of the blocking switch (10). The protection switch (1) is provided with a stall switch (12), and the stall switch (12) is arranged on one side of the tearing switch (11).

4. According to claim 3, a belt conveyor protection device based on network and distributed PLC control is characterized in that: The protection switch (1) is a comprehensive protection device.

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