CN216659634U

CN216659634U - Automatic alarm device for charging completion of AGV trolley

Info

Publication number: CN216659634U
Application number: CN202220093938.2U
Authority: CN
Inventors: 易进参; 蔡培良; 潘昱亭; 解道彪; 陈龙军; 李鑫; 杨彩虹
Original assignee: Hongyun Honghe Tobacco Group Co Ltd
Current assignee: Hongyun Honghe Tobacco Group Co Ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-06-03
Anticipated expiration: 2032-01-13

Abstract

The utility model provides an automatic alarm device for charging completion of an AGV (automatic guided vehicle), which comprises: PLC controller, fill electric pile main contactor, normally closed relay, auxiliary relay and alarm device. The input end of the PLC is connected with the output end of the normally closed relay, and the output end of the PLC is connected with the control end of the intermediate relay. The input end of the normally closed relay is electrically connected with a DC24V power supply, and the control end of the normally closed relay is connected with an auxiliary contact of the charging pile main contactor. The input end of the intermediate relay is electrically connected with a DC24V power supply, and the output end of the intermediate relay is connected with an alarm device. After the AGV dolly charges and accomplishes, fill electric pile main contactor disconnection, make auxiliary contact lose the electricity, and then the PLC controller controls auxiliary relay closure when the normally closed relay closure, makes alarm device carry out continuous warning according to the settlement time. The method and the system can improve the intelligence and convenience of monitoring the AGV trolley and improve the safety of a workshop.

Description

Automatic alarm device for charging completion of AGV trolley

Technical Field

The utility model relates to the technical field of AGV trolley monitoring, in particular to an automatic alarm device for charging completion of an AGV trolley.

Background

The AGV material conveying trolley is mainstream material conveying equipment in the tobacco industry at present, and is used for conveying raw and auxiliary materials required by cigarette manufacturing in a cigarette packaging workshop. The AGV trolley is an automatic driving transport vehicle in a production workshop, the position of the AGV trolley and peripheral obstacles are determined mainly according to a positioning radar, an obstacle detection sensor and the like, and raw and auxiliary materials are transported by setting a fixed line. When detecting the electric quantity low, the AGV dolly can go to filling electric pile automatically and charge. After charging, the trolley can automatically back up, quits from the charging pile, runs to a specified parking point, and waits for issuing of a next material transporting instruction.

After the charging of the trolley is completed, the trolley can automatically exit from the charging pile and cannot give an alarm. Nor the associated prompt information. The AGV dolly fill electric pile and install in the workshop and lean on the wall position, and the next door is the public commodity circulation transportation main entrance of people's car, for the convenient and fast who guarantees material transport, the passageway does not have relevant guardrail with filling between the electric pile. The material conveying trolley which is started to reverse is very easy to collide with pedestrians in a workshop, and safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides an automatic alarm device for charging of an AGV (automatic guided vehicle), which solves the problem that safety accidents are easily caused because an alarm is lacked in the process of automatically withdrawing from a charging pile after the charging of the AGV is finished, and can improve the intelligence and convenience of monitoring of the AGV and the safety of a workshop.

In order to achieve the above purpose, the utility model provides the following technical scheme:

an automatic alarm device for charging completion of an AGV trolley comprises: the charging pile control system comprises a PLC, a charging pile main contactor, a normally closed relay, an intermediate relay and an alarm device;

the input end of the PLC is connected with the output end of the normally closed relay, and the output end of the PLC is connected with the control end of the intermediate relay;

the input end of the normally closed relay is electrically connected with a DC24V power supply, and the control end of the normally closed relay is connected with an auxiliary contact of the charging pile main contactor;

the input end of the intermediate relay is electrically connected with a DC24V power supply, and the output end of the intermediate relay is connected with the alarm device;

after the AGV dolly charges and accomplishes, fill electric pile main contactor disconnection, make auxiliary contact loses the electricity, and then the PLC controller is in control when the normally closed relay is closed auxiliary relay is closed, makes alarm device carries out continuous warning according to the settlement time.

Preferably, the method further comprises the following steps: a display;

the display is in signal connection with the PLC and used for displaying alarm information, the running route of the AGV and countdown of the set time in real time.

Preferably, the intermediate relay is a normally open relay.

Preferably, the alarm device includes at least any one of the following: pilot lamp, buzzer and audible-visual annunciator.

Preferably, alarm device fills electric pile one-to-one with the AGV dolly, and makes every alarm device sets up the route limit of backing a car at corresponding AGV dolly.

Preferably, the method further comprises the following steps: touching a mould screen;

the touch screen is respectively connected with the AGV charging pile and the PLC through signals, and is used for identifying the charging state of each AGV charging pile in real time and providing a human-computer interaction interface.

Preferably, the method further comprises the following steps: a control cabinet;

the PLC controller, the normally closed relay, the intermediate relay and the touch screen are arranged in the control cabinet.

Preferably, the method further comprises the following steps: an electric cabinet box;

the electric cabinet box is provided with a DC24V power supply and the charging pile main contactor.

The utility model provides an automatic alarm device for charging completion of an AGV (automatic guided vehicle). A PLC (programmable logic controller) is adopted to output a high level when the charging of the AGV is completed, so that an intermediate relay is closed to control the alarm device to give an alarm. The problem of current AGV dolly charge automatic process of withdrawing from after accomplishing and fill electric pile lack the warning, easily cause the incident is solved, can improve the intelligence and the convenience of AGV dolly control, improve the security in workshop.

Drawings

In order to more clearly describe the specific embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below.

FIG. 1 is a schematic diagram of an AGV charging completion automatic alarm device provided by the present invention.

Fig. 2 is a schematic diagram of an automatic alarm system based on PLC control according to an embodiment of the present invention.

Detailed Description

In order to make the technical field of the utility model better understand the scheme of the embodiment of the utility model, the embodiment of the utility model is further described in detail with reference to the drawings and the implementation mode.

Lack the warning after the completion to current AGV dolly charges, easily take place the incident when backing a car. The utility model provides an automatic alarm device for charging of an AGV (automatic guided vehicle), which solves the problem that safety accidents are easily caused because an alarm is lacked in the process of automatically withdrawing from a charging pile after the charging of the AGV is finished, and can improve the intelligence and convenience of monitoring of the AGV and the safety of a workshop.

As shown in fig. 1, an automatic alarm device for AGV cart charging completion includes: PLC controller, fill electric pile main contactor, normally closed relay, auxiliary relay and alarm device. The input end of the PLC is connected with the output end of the normally closed relay, and the output end of the PLC is connected with the control end of the intermediate relay. The input end of the normally closed relay is electrically connected with a DC24V power supply, and the control end of the normally closed relay is connected with the auxiliary contact of the charging pile main contactor. The input end of the intermediate relay is electrically connected with a DC24V power supply, and the output end of the intermediate relay is connected with the alarm device. After the AGV dolly charges and accomplishes, fill electric pile main contactor disconnection, make auxiliary contact loses the electricity, and then the PLC controller is in control when the normally closed relay is closed auxiliary relay is closed, makes alarm device carries out continuous warning according to the settlement time.

In practical application, as shown in fig. 2, the PLC controller may adopt a siemens S7-200 model, the input end of the PLC controller is connected with the normally closed contact of the input normally closed relay, when the first AGV cart is charged, the charging pile main contactor is disconnected, the corresponding auxiliary contact is disconnected and loses power, the auxiliary contact is connected with the control end of the input normally closed relay KI1, the normally closed relay loses power to close the normally closed contact, the input end of the PLC controller detects a high level, at this time, the PLC controller outputs the high level, the coil end (control end) of the intermediate relay is powered on, so that the intermediate relay KQ1 is closed, and the alarm lamp E1 lights up for alarm. At the same time, the internal timer T of the PLC controller starts timing 30S. When the time is up to 30S, the output end of the PLC is controlled by the program to output low level, so that the coil of the intermediate relay KQ1 is powered off, the normally open contact is disconnected, the alarm lamp is powered off, the alarm is stopped, and the time timer T is reset, thereby completing one-time alarm. If the charging of the trolley of the No. 2 charging pile corresponding to the other alarm lamp is completed within 30S of alarming, the internal program controls and outputs 24V to the pin of the output end corresponding to the PLC controller, so that the output end of the PLC controller controls and outputs the coil of the intermediate relay KQ2 to be connected. The normally open contact of the output intermediate relay is closed, the No. 2 alarm lamp E2 is electrified, the alarm is stopped after the alarm is continuously delayed for 30S, and the time timer is reset. One alarm lamp can also correspond to a plurality of charging piles, for example, the charging pile number 1 and the charging pile number 2 correspond to the charging pile number 1 alarm lamp E1; no. 3 fills electric pile and No. 4 fills electric pile and corresponds No. 2 alarm lamp E2. The No. 5 charging pile and the No. 6 charging pile correspond to the No. 3 alarm lamp E3; no. 7 fills electric pile and No. 8 fills electric pile and corresponds No. 4 alarm lamps E4. The corresponding normally closed relays are KI1, KI2, KI3, KI4, KI5, KI6, KI7 and KI8, and the normally open relays are KQ1, KQ2, KQ3 and KQ4, so that the alarm lamps and the relays can be expanded to be multiple as required. This device adopts PLC controller to export high level when AGV dolly charges to accomplish, makes the auxiliary relay closure report to the police with control alarm device. The problem of current AGV dolly charge automatic process of withdrawing from after accomplishing and fill electric pile lack the warning, easily cause the incident is solved, can improve the intelligence and the convenience of AGV dolly control, improve the security in workshop.

The device also includes: a display; the display is in signal connection with the PLC and used for displaying alarm information, the running route of the AGV and countdown of the set time in real time.

Further, the intermediate relay is a normally open relay.

Further, the alarm device at least comprises any one of the following components: pilot lamp, buzzer and audible-visual annunciator.

Furthermore, alarm device fills electric pile one-to-one with the AGV dolly, and makes every alarm device sets up the route limit of backing a car at corresponding AGV dolly.

The device also includes: touching a mould screen; the touch screen is respectively connected with the AGV charging pile and the PLC through signals, and is used for identifying the charging state of each AGV charging pile in real time and providing a human-computer interaction interface.

The device also includes: a control cabinet; the PLC controller, the normally closed relay, the intermediate relay and the touch screen are arranged in the control cabinet.

The device also includes: an electric cabinet box; the electric cabinet box is provided with a DC24V power supply and the charging pile main contactor.

In practical application, as shown in fig. 2, an automatic alarm device for charging completion of an AGV material transporting trolley mainly includes: no. 1 alarm lamp E1, No. 2 alarm lamp E2, No. 3 alarm lamp E3, No. 4 alarm lamp E4, No. 1 fill electric pile relay, No. 2 fill electric pile relay, No. 3 fill electric pile relay, No. 4 fill electric pile relay, No. 5 fill electric pile relay, No. 6 fill electric pile relay, No. 7 fill electric pile relay and No. 8 fill electric pile relay, alarm lamp and relay can be a plurality ofly according to the actual conditions extension.

The electric cabinet box and the control cabinet can be located on the wall behind the charging pile, a circuit breaker, a PLC (programmable logic controller), a 24V direct-current power supply, a wiring terminal, a normally closed relay and an intermediate relay are loaded inside the electric cabinet box and are provided with corresponding connecting wires and wire grooves, and a touch screen is arranged on the door of the electric cabinet box. The PLC is installed in the control cabinet and is programmed to control the sound and light alarm control of the AGV when charging is completed. The circuit breaker is positioned in the electric cabinet box and used for controlling the on-off of the direct current 220V power supply and the direct current 24V power supply. The 24V direct current power supply is positioned in the electric cabinet box and used for converting AC220V into DC24V and supplying power needed by a PLC, an alarm lamp, an intermediate relay and an I/O input point. The terminals are used to provide a signal and expansion interface for DC 24V. The output intermediate relay is positioned in the control cabinet and used for isolating the PLC and outputting the alarm lamp, and the overload of the output end of the PLC is avoided. The normally closed relay is positioned in the control cabinet, and a feedback signal for completing the disconnection of the main contactor after the charging of the trolley controls a coil of the normally closed relay. And a normally closed contact of the normally closed relay is connected to the input end of the PLC. When the PLC outputs 24V, the alarm lamp is turned on and sounds an alarm along with the buzzer.

Therefore, the utility model provides an automatic alarm device for charging completion of an AGV (automatic guided vehicle). A PLC (programmable logic controller) is adopted to output a high level when the charging of the AGV is completed, so that an intermediate relay is closed to control the alarm device to give an alarm. The problem of current AGV dolly charge automatic process of withdrawing from after accomplishing and fill electric pile lack the warning, easily cause the incident is solved, can improve the intelligence and the convenience of AGV dolly control, improve the security in workshop.

The construction, features and functions of the present invention have been described in detail with reference to the embodiments shown in the drawings, but the present invention is not limited to the embodiments shown in the drawings, and all equivalent embodiments modified or modified by the spirit and scope of the present invention should be protected without departing from the spirit of the present invention.

Claims

1. The utility model provides an AGV dolly automatic alarm device that finishes that charges which characterized in that includes: the charging pile control system comprises a PLC, a charging pile main contactor, a normally closed relay, an intermediate relay and an alarm device;

after the AGV dolly is charged and is accomplished, fill the disconnection of electric pile main contactor, make auxiliary contact loses the electricity, and then the PLC controller is in control when normally closed relay is closed intermediate relay is closed, makes alarm device carries out continuous warning according to the settlement time.

2. The AGV cart charge completion autoalarm of claim 1, further comprising: a display;

3. The AGV car charge completion autoalarm of claim 2, wherein said intermediate relay is a normally open relay.

4. The AGV car charge completion automatic alarm of claim 3, wherein said alarm means includes at least one of the following: pilot lamp, buzzer and audible-visual annunciator.

5. The AGV car charging completion automatic alarm device of claim 4, wherein the alarm devices are in one-to-one correspondence with the AGV car charging piles, and each of the alarm devices is disposed at a side of a reversing path of the corresponding AGV car.

6. The AGV cart charge completion automatic alarm of claim 5, further comprising: touching a mould screen;

7. The AGV car charge completion autoalarm of claim 6, further comprising: a control cabinet;

8. The AGV cart charge completion autoalarm of claim 7, further comprising: an electric cabinet box;