CN220537281U - Electromagnetic chuck magnetic force decline detects early warning system - Google Patents
Electromagnetic chuck magnetic force decline detects early warning system Download PDFInfo
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- CN220537281U CN220537281U CN202321643776.6U CN202321643776U CN220537281U CN 220537281 U CN220537281 U CN 220537281U CN 202321643776 U CN202321643776 U CN 202321643776U CN 220537281 U CN220537281 U CN 220537281U
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- 230000007423 decrease Effects 0.000 title claims description 10
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000033764 rhythmic process Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of electromagnetic chucks, in particular to an electromagnetic chuck magnetic force descent detection early warning system which comprises a chuck, a PLC (programmable logic controller), a temperature sensor, a digital display thermometer and a plurality of fans, wherein the temperature sensor is electrically connected with the PLC, the fans are electrically connected with the PLC, the temperature sensor is used for detecting the temperature of the chuck, the digital display thermometer is used for displaying the temperature of the chuck, the digital display thermometer sends temperature data to the PLC, and the PLC starts and stops the fans to work according to the detected temperature of the chuck to realize the cooling of the chuck. According to the utility model, the temperature of the sucker is detected in real time through the temperature sensor, and when the temperature of the sucker reaches the alarm value, the fan is started to cool the sucker, so that the service life of the sucker is prolonged, and the influence on the production rhythm caused by replacement of the sucker is avoided.
Description
Technical Field
The utility model relates to the technical field of electromagnetic chucks, in particular to a magnetic force descent detection and early warning system of an electromagnetic chuck.
Background
In the process of lifting wires by using the finished sucker in a steel mill, the sucker can generate heat due to long-time operation, and the magnetic force can be obviously reduced when the temperature reaches more than 60 ℃. In the travelling crane lifting process, the wire bags can fall from the travelling crane electromagnetic chuck to crush the transport vehicle, and meanwhile, the quality of finished product bags is also affected. The electromagnetic chuck needs to be replaced when the temperature of the electromagnetic chuck is high; in addition, the driving sucker cable is directly connected into the sucker junction box, and in the sucker replacement process, the disassembly and assembly are required to consume 30 minutes, so that the production rhythm is influenced.
Disclosure of Invention
Aiming at the defects of the existing system, the temperature sensor detects the temperature of the sucker in real time, and when the temperature of the sucker reaches the upper limit, the fan is started to cool the sucker, so that the service life of the sucker is prolonged, and the influence on the production rhythm caused by replacement of the sucker is avoided.
The technical scheme adopted by the utility model is as follows: an electromagnetic chuck magnetic force decline detects early warning system, includes: the temperature sensor is installed at the top of the sucker, the temperature sensor is sequentially connected with the digital display thermometer and the PLC, the fan is installed at the top of the sucker and is electrically connected with the PLC, the temperature sensor is used for detecting the temperature of the sucker, the digital display thermometer is used for displaying the temperature of the sucker, the digital display thermometer sends temperature data of the sucker to the PLC, and the PLC starts and stops working according to the detected temperature of the sucker and cools the sucker through the fan.
Further, the method further comprises the following steps: the current transformer is arranged on a cable of the sucker, is connected with the digital display ammeter and the PLC respectively, and is used for detecting the current value of the sucker, and the digital display ammeter is used for displaying the current value of the sucker and giving an alarm through the warning lamp when the current value is abnormal.
Further, the cable of sucking disc is changed for the quick connect plug, reduces sucking disc change time, improves driving operation rate.
Further, the number of fans is 3, and three cooling fans are arranged to enable the sucker to be cooled rapidly.
Further, the model of the digital display thermometer is KD-110.
Further, the model of the PLC controller is CPU1214C.
Further, the model of the digital display ammeter is A31.
The utility model has the beneficial effects that:
1. the electromagnetic chuck is physically cooled by the fan, so that frequent replacement of the chuck is avoided, and the production efficiency is improved;
2. monitoring the running state of the travelling crane electromagnetic chuck, and reminding maintenance personnel to check the problem in time when the current abnormal state of the electromagnetic chuck occurs, so that the magnetic force of the electromagnetic chuck is prevented from being reduced to influence the safety of equipment and the quality of finished products;
3. the cable of the driving sucker is changed into a quick plug, so that the replacement time of the sucker is greatly reduced, and the operation rate of driving is improved.
Drawings
FIG. 1 is a flow chart of an electromagnetic chuck magnetic force descent detection and early warning system.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and examples, which are simplified schematic illustrations showing only the basic structure of the utility model and thus showing only those constructions that are relevant to the utility model.
As shown in fig. 1, an electromagnetic chuck magnetic force descent detection and early warning system includes:
the temperature sensor is arranged on the upper side of the sucker, the temperature sensor is connected with the S1 pin and the S2 pin of the digital display thermometer, the No pin of the digital display thermometer is connected with the I0.1 pin of the PLC, the temperature of the digital display thermometer is calibrated after the digital display thermometer is electrified and started, the upper limit and the lower limit of the temperature are set, and the upper limit and the lower limit can be set to 60 degrees and 50 degrees in a self-defined mode.
A bracket is welded on a hook rack at the upper end of the sucker, and three fans are installed for cooling the sucker; in practical application, different numbers of cooling fans can be arranged according to the size of the sucker; the first fan to the third fan are respectively connected with thermal relay coils FR1-FR3, FR1-FR3 are respectively connected with contactor coils KM1, KM2 and KM3, one end of each of the KM1-KM3 is respectively connected with an air switch QS1-QS3 and then is connected with 380V alternating current, the other end of each of the KM1-KM3 is respectively connected with relay coils KA1-KA3 and thermal relay switches FR1-FR3, and FR1-FR3 are respectively connected with QS4-QS 6; the control pins of KA1-KA3 are respectively connected with the Q0.1-Q0.3 pins of the PLC controller, and the control pins of FR1-FR3 are respectively connected with the I0.2-I0.4 pins of the PLC controller.
When the temperature of the sucker is higher than 60 ℃, the digital display thermometer sends a signal to an I0.1 pin of the PLC through a No pin of the digital display thermometer, so that coils of FR1-FR3 are powered on, coils of KA1-KA3 are powered on, and therefore a first fan to a third fan on the sucker are started, and when the temperature of the sucker is lower than 50 ℃, three fans stop working; three cooling fan operation signals are displayed on a touch screen of the digital display thermometer, green lights are displayed when the fans are operated, red lights are displayed when the fans are stopped, and yellow lights are displayed when the fans are failed; when the fan fails, the touch screen displays a corresponding fan failure indication to remind maintenance personnel of replacement.
The digital display ammeter is characterized in that a current transformer is arranged on a cable of the sucker, the current transformer is connected with the digital display ammeter and can set the upper limit of the current to be 100A, the current transformer is connected with S1 and S2 pins of the digital display ammeter, a No pin of the digital display ammeter is connected with an I0.0 pin of the PLC, when the current of the sucker is greater than 100A, a touch screen of the digital display ammeter displays a sucker current high early warning, a rotary warning lamp sends out an audible and visual warning to remind operators of sucker faults, and the rotary warning lamp is connected with a Q0.0 pin of the PLC.
The model of the digital display thermometer is KD-110; the model of the digital display ammeter is A31; the model of the PLC controller is CPU1214C.
The cable of the driving sucker is directly connected to the sucker junction box, so that the disassembling and assembling of the sucker cable is time-consuming in the sucker replacement process, the quick plug is used, the sucker replacement time is shortened, and the driving operation rate is improved.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (7)
1. An electromagnetic chuck magnetic force decline detects early warning system, characterized by comprising: the temperature sensor is sequentially connected with the digital display thermometer and the PLC, the fan is electrically connected with the PLC, the temperature sensor is used for detecting the temperature of the sucker, the digital display thermometer is used for displaying the temperature of the sucker, the digital display thermometer sends the temperature data of the sucker to the PLC, and the PLC starts and stops the fan to work according to the detected temperature of the sucker so as to realize cooling of the sucker.
2. The electromagnetic chuck magnetic force decline detection and early warning system according to claim 1, further comprising a current transformer and a digital display ammeter, wherein the current transformer is respectively connected with the digital display ammeter and a PLC (programmable logic controller), the current transformer is used for detecting the current value of the chuck, the digital display ammeter is used for displaying the current value of the chuck, and the PLC is used for controlling the warning lamp to give an alarm.
3. The electromagnetic chuck magnetic decline detection and early warning system according to claim 1, wherein the cable of the chuck is replaced with a quick connect plug.
4. The electromagnetic chuck magnetic decline detection and early warning system according to claim 1, wherein the number of fans is 3.
5. The electromagnetic chuck magnetic force decline detection and early warning system according to claim 1, wherein the model of the digital display thermometer is KD-110.
6. The electromagnetic chuck magnetic force decline detection and early warning system according to claim 1, wherein the PLC controller is of the type CPU1214C.
7. The electromagnetic chuck magnetic force decline detection and early warning system according to claim 2, wherein the model of the digital display ammeter is A31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321643776.6U CN220537281U (en) | 2023-06-27 | 2023-06-27 | Electromagnetic chuck magnetic force decline detects early warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321643776.6U CN220537281U (en) | 2023-06-27 | 2023-06-27 | Electromagnetic chuck magnetic force decline detects early warning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220537281U true CN220537281U (en) | 2024-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321643776.6U Active CN220537281U (en) | 2023-06-27 | 2023-06-27 | Electromagnetic chuck magnetic force decline detects early warning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220537281U (en) |
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2023
- 2023-06-27 CN CN202321643776.6U patent/CN220537281U/en active Active
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