CN115647113A - Device and method for detecting steel coil core-pulling of coiling machine - Google Patents
Device and method for detecting steel coil core-pulling of coiling machine Download PDFInfo
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- CN115647113A CN115647113A CN202211226953.0A CN202211226953A CN115647113A CN 115647113 A CN115647113 A CN 115647113A CN 202211226953 A CN202211226953 A CN 202211226953A CN 115647113 A CN115647113 A CN 115647113A
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- photoelectric sensor
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- steel coil
- coiling
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Abstract
The invention provides a device and a method for detecting a steel coil core-pulling of a coiler, wherein the device comprises two photoelectric sensors and two optical signal reflecting plates, the two photoelectric sensors and the two optical signal reflecting plates are respectively installed through two adjusting brackets, the two photoelectric sensors are arranged on the outlet side of the coiler, the two optical signal reflecting plates are arranged on the inlet side of the coiler, and the two photoelectric sensors correspond to the two optical signal reflecting plates one to one.
Description
Technical Field
The invention belongs to the technical field of cold-rolled strip steel acid rolling continuous machine outlet coiling and coil stripping control, and particularly relates to a device and a method for detecting a steel coil core pulling of a coiling machine.
Background
And (3) according to the rolling process requirements, the strip steel is rolled to a target thickness by the cold-rolling acid rolling unit and then is sent to a coiling machine through an outlet of the rolling machine to be coiled. The mandrel of the coiler is a cylinder formed by three segments, and a hydraulic mechanism is arranged in the mandrel, so that the three segments can expand and contract for coiling and uncoiling. When the coil weight or the length of the strip steel reaches a specified value, the flying shears at the outlet of the rolling mill cut and split the coil. The outlet of the rolling mill set is provided with a coil unloading trolley, and the coil after coil splitting is unloaded by the coil unloading trolley and is sent to the outlet walking beam. The coil stripping trolley moves between a coil stripping position of the coiling machine and a pipe connecting position of the outlet walking beam. As shown in the figure, the coil stripping trolley is arranged below the steel coil, the hydraulic cylinder is lifted to support the steel coil, and after the mandrel of the coiling machine is contracted, the steel coil is unloaded by the coil stripping trolley and is conveyed to the position of the outlet walking beam. The coil of strip is in the coil of strip in-process of unloading, and the inlayer plate head of coil of strip just in time is in the segment gap, causes the plate head card to hinder, and the operative employee can't observe, leads to "loosing core" phenomenon, if the dolly that unloads coils continues the sideslip coil of strip this moment, can cause the coil of strip core tape head constantly to drop to dolly track below, handles to resume production very difficultly, more seriously can cause the coil of strip to overturn from the dolly that unloads, and the coil of strip is scrapped, smashes bad the dolly that unloads coils, batches regional equipment, takes place the safety in production accident.
Disclosure of Invention
The invention aims to solve the technical problems and provides a device and a method for detecting the core-pulling of the steel coil of the coiling machine, which can effectively avoid the back-rolling accident caused by the core-pulling of the steel coil during coiling without more investment and complex program calculation.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a detect coiling machine coil of strip device of loosing core which characterized in that, includes two photoelectric sensor and two optical signal reflecting plate, two photoelectric sensor and two optical signal reflecting plate are respectively through two regulation support installations, and two photoelectric sensor are installed in the outlet side of coiling machine, and two optical signal reflecting plate are installed in the inlet side of coiling machine, and two photoelectric sensor and two optical signal reflecting plate one-to-one.
According to the scheme, the upper edge of the adjusting bracket is provided with a guide groove, the photoelectric sensor and the optical signal reflecting plate are fixed on the guide groove through the adjusting bolt, and the position is adjusted by moving along the guide groove.
According to the scheme, the vertical distance H between the two photoelectric sensors is the radius +100mm of the winding drum, one photoelectric sensor positioned above is arranged corresponding to the shaft core of the winding core shaft of the winding machine, the distance L from the end surface of the winding core shaft is 100mm, and one photoelectric sensor positioned below corresponds to the steel coil.
A detection method for core pulling of a steel coil of a coiling machine is characterized by comprising the following steps: in the normal production and normal coil stripping processes, the states of the two photoelectric sensors are both high level '1' or low level '0'; when core pulling occurs during coiling, the photoelectric sensor corresponding to the coiling mandrel is in a high level state of '1', and the photoelectric sensor corresponding to the steel coil is in a low level state of '0'; the states of the two photoelectric sensors are logically judged through PLC programming: when the two photoelectric sensors are in a high level 1 state or a low level 0 state, the coil unloading is judged to be normal, when one of the two photoelectric sensors is in the high level 1 state and the other one is in the low level 0 state, the steel coil core pulling is judged, at the moment, the production and coil unloading operation actions are interrupted, and an alarm is sent to remind an operator of manually intervening coil unloading.
The invention has the beneficial effects that: the steel coil core-pulling device and the method for detecting the coiler steel coil core-pulling device have the advantages that under the condition that more equipment such as a code disc encoder or a laser ranging device does not need to be added and investment is not increased, complex program calculation is not needed to be carried out on the position of a trolley and the width information data of the steel coil, the steel coil core-pulling phenomenon can be effectively detected and controlled, the steel coil falling accident caused by core pulling is effectively avoided, the workload of accident processing is reduced, the occurrence of abnormal equipment damage and personal injury accidents is eliminated, the smooth production is guaranteed, the simplicity and the practicability are realized, and the stable reliability is high.
Drawings
FIG. 1 is a schematic diagram of two photosensors in accordance with one embodiment of the present invention.
Fig. 2 is a schematic diagram of two optical signal reflection plates according to an embodiment of the present invention.
FIG. 3 is a front view of the inspection device relative to the coiler according to one embodiment of the present invention.
FIG. 4 is a schematic illustration of the coil stripping process of one embodiment of the present invention.
FIG. 5 is a schematic diagram of abnormal core pulling during coil stripping according to an embodiment of the present invention.
Detailed Description
For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and examples.
As shown in fig. 1-3, a core pulling device for detecting a steel coil of a coiling machine comprises two photoelectric sensors 1 and two optical signal reflecting plates 2, wherein the two photoelectric sensors and the two optical signal reflecting plates are respectively installed through two adjusting brackets 3, the two photoelectric sensors are installed on the outlet side of the coiling machine, the two optical signal reflecting plates are installed on the inlet side of the coiling machine, and the two photoelectric sensors are in one-to-one correspondence with the two optical signal reflecting plates.
The upper edge of the adjusting bracket is provided with a guide groove 4, the photoelectric sensor and the optical signal reflecting plate are fixed on the guide groove through an adjusting bolt 5, and the adjusting position is moved along the guide groove.
The vertical distance H of the two photoelectric sensors is +100mm of the radius of the winding drum, the photoelectric sensor positioned above is arranged corresponding to the shaft core of the winding mandrel 6 of the winding machine, the distance L from the end face of the winding shaft core is 100mm, and the photoelectric sensor positioned below corresponds to the steel coil.
The laser of the photoelectric sensor respectively penetrates through an area 100mm away from the coiling mandrel and an area H = the radius of the winding drum +100mm away from the center lower part of the mandrel, and the optical signal reflection plate device is arranged on the inlet side of the coiling machine and is on the same axis with the photoelectric sensor, and correspondingly reflects the laser signal to the photoelectric sensor; when the laser is shielded, namely an object is detected to pass through, the sensor device transmits a high level signal '1' to the PLC, and when the laser is not shielded, namely no object is detected to pass through, the photoelectric sensor device transmits a low level signal '0' to the PLC.
As shown in fig. 4 to 5, the method for detecting the core pulling of the steel coil of the coiling machine by using the device comprises the following steps: in the normal production and normal coil stripping processes, the states of the two photoelectric sensors are both high level '1' or low level '0'; when core pulling occurs during coiling, the photoelectric sensor corresponding to the coiling mandrel is in a high level state of '1', and the photoelectric sensor corresponding to the steel coil is in a low level state of '0'; the states of the two photoelectric sensors are logically judged through PLC programming: when the two photoelectric sensors are in a high level 1 state or a low level 0 state, the coil unloading is judged to be normal, when one of the two photoelectric sensors is in the high level 1 state and the other one is in the low level 0 state, the steel coil core pulling is judged, at the moment, the production and coil unloading operation actions are interrupted, and an alarm is sent to remind an operator of manually intervening coil unloading.
The present invention is illustrated by the above examples, and is not limited to the embodiments of the present invention, and the structure, the position arrangement and the connection of the components may be changed. On the basis of the present invention, any changes or equivalent changes of the individual components according to the principle of the present invention should not be excluded from the scope of the present invention.
Claims (5)
1. The utility model provides a detect coiler coil of strip device of loosing core which characterized in that, includes two photoelectric sensor and two light signal reflecting plate, two photoelectric sensor and two light signal reflecting plate are respectively through two regulation support mountings, and two photoelectric sensor install in the outlet side of coiler, and two light signal reflecting plate install in the inlet side of coiler, two photoelectric sensor and two light signal reflecting plate one-to-ones.
2. The device for detecting the steel coil core pulling of the coiling machine according to claim 1, wherein a guide groove is formed in the upper edge of the adjusting bracket along a central line, the photoelectric sensor and the optical signal reflecting plate are fixed on the guide groove through an adjusting bolt, and the adjusting position is moved along the guide groove.
3. The device for detecting the core pulling device of the steel coil of the coiling machine according to claim 2, wherein the vertical distance H between the two photoelectric sensors is +100mm of the radius of the coiling drum, the upper photoelectric sensor is arranged corresponding to the shaft core of the coiling mandrel of the coiling machine, the distance L from the end surface of the coiling shaft core is 100mm, and the lower photoelectric sensor corresponds to the steel coil.
4. The device for detecting the steel coil core-pulling of the coiling machine according to claim 3, characterized by further comprising a PLC (programmable logic controller) and an alarm, wherein the input end of the PLC is electrically connected with the two photoelectric sensors, and the output end of the PLC is electrically connected with the alarm.
5. The method for detecting the steel coil core pulling of the steel coil core pulling device of the coiling machine is characterized by comprising the following steps of: in the normal production and normal coil stripping processes, the states of the two photoelectric sensors are both high level '1' or low level '0'; when core pulling occurs during coiling, the photoelectric sensor corresponding to the coiling mandrel is in a high level state of '1', and the photoelectric sensor corresponding to the steel coil is in a low level state of '0'; the states of the two photoelectric sensors are logically judged through PLC programming: when the two photoelectric sensors are in a high level 1 state or a low level 0 state, the coil stripping is judged to be normal, when one of the two photoelectric sensors is in a high level 1 state and the other one is in a low level 0 state, the steel coil core pulling is judged, at the moment, the production and coil stripping operation actions are interrupted, and an alarm is sent out to remind an operator of manually intervening coil stripping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211226953.0A CN115647113A (en) | 2022-10-09 | 2022-10-09 | Device and method for detecting steel coil core-pulling of coiling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211226953.0A CN115647113A (en) | 2022-10-09 | 2022-10-09 | Device and method for detecting steel coil core-pulling of coiling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115647113A true CN115647113A (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211226953.0A Pending CN115647113A (en) | 2022-10-09 | 2022-10-09 | Device and method for detecting steel coil core-pulling of coiling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115647113A (en) |
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2022
- 2022-10-09 CN CN202211226953.0A patent/CN115647113A/en active Pending
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