CN111913428B - Safety control system and method for eliminating rollover of traversing trolley - Google Patents
Safety control system and method for eliminating rollover of traversing trolley Download PDFInfo
- Publication number
- CN111913428B CN111913428B CN202010561232.XA CN202010561232A CN111913428B CN 111913428 B CN111913428 B CN 111913428B CN 202010561232 A CN202010561232 A CN 202010561232A CN 111913428 B CN111913428 B CN 111913428B
- Authority
- CN
- China
- Prior art keywords
- controller
- steel coil
- trolley
- level signal
- detection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1176—I-O signal processing, adaption, conditioning, conversion of signal levels
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention relates to a safety control system and a method for eliminating coil overturning of a traverse trolley, wherein the system comprises a controller and a steel coil detection device for detecting a steel coil occupancy signal of the traverse trolley, the steel coil detection device is electrically connected with a first input end of the controller, the steel coil detection device is used for monitoring the steel coil occupancy condition on the traverse trolley in real time and outputting a level signal to the controller, when the first input end of the controller receives a high level signal, the traverse trolley is considered to have no steel coil, when the first input end of the controller receives a low level signal, the traverse trolley is considered to have the steel coil, and the controller controls the working states of the traverse trolley and a walking beam according to the received level signal output by the steel coil detection device. The invention ensures that the procedure can default the steel coil on the saddle even if the external fault causes the procedure distortion, and can effectively prevent dangerous actions such as coil turning, collision of the walking beam and the steel coil trolley and the like.
Description
Technical Field
The invention belongs to the technical field of automatic control of a traversing carriage, and particularly relates to a safety control system and a safety control method for eliminating rollover of the traversing carriage.
Background
At present, on a production line of which the finished product is a steel coil, the steel coil is transported by transversely moving a trolley to realize the movement of the steel coil. The steel coil on the walking beam is transported to the position of an uncoiler by a traversing trolley, and the working principle diagram of the trolley coiling is shown in figure 1. The applicant designs a control system for controlling the operation of a walking beam, a transverse moving trolley and the like, whether a steel coil is arranged on the transverse moving trolley or not is detected through an inductive limit switch, normally open signals are selected at the limit during initial design, namely, when the steel coil is arranged on the transverse moving trolley, high-level 1 signals are sent to a controller, and safety risks exist in the design. When the transverse trolley actually has a steel coil, but the input signal is distorted due to faults such as limit damage or cable damage, and the like, the controller actually receives a low-level signal, so that the controller program can consider that no steel coil exists on the saddle and mistakenly acts to control the stepping beam to step, the transverse trolley is enabled to have a coil overturning accident, and equipment safety accidents are caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a safety control system and a safety control method for eliminating the scrolling of a traversing trolley, so that even if program distortion is caused by system faults, a steel coil is arranged on a default saddle of a program, and dangerous actions such as scrolling, collision of a walking beam and the steel coil trolley and the like can be effectively prevented.
The invention is realized by the following steps: the invention provides a safety control system for eliminating transverse trolley coil overturning, which comprises a controller and a steel coil detection device for detecting transverse trolley steel coil occupation signals, wherein the steel coil detection device is electrically connected with a first input end of the controller, the steel coil detection device is used for monitoring the steel coil occupation condition on a transverse trolley in real time and outputting level signals to the controller, when the first input end of the controller receives high level signals, the transverse trolley is considered to have no steel coil, when the first input end of the controller receives low level signals, the transverse trolley is considered to have the steel coil, and the controller controls the working states of the transverse trolley and a walking beam according to the received level signals output by the steel coil detection device.
Further, the steel coil detection device adopts a limit switch.
Further, the controller adopts a PLC controller.
Further, when the first input end of the controller receives a low level signal, the duration time of the low level signal is judged, and if the duration time of the low level signal exceeds the set time, a system fault is considered to occur.
The system further comprises an alarm device, the alarm device is connected with the output end of the controller, and the controller sends an alarm signal to the alarm device to give an alarm prompt after judging the system fault.
The invention provides a safety control method for eliminating rollover of a traversing trolley, which comprises the following steps:
1) the steel coil detection device monitors the steel coil occupation condition on the transverse moving trolley in real time and outputs a level signal to the controller;
2) when the steel coil detection device does not detect that a steel coil is arranged on the transverse moving trolley, the steel coil detection device outputs a high-level signal to the controller, and when the steel coil detection device detects that the steel coil is arranged on the transverse moving trolley, the steel coil detection device outputs a low-level signal to the controller;
3) the first input end of the controller monitors level signals sent by the steel coil detection device in real time, and when the first input end of the controller receives high level signals, the controller considers that no steel coil exists on the transverse moving trolley, corresponding subsequent operation is executed, and the walking beam is controlled to transfer the steel coil on the walking beam to the transverse moving trolley; when the first input end of the controller receives the low level signal, the controller considers that the steel coil is arranged on the traverse trolley, corresponding subsequent operation is executed, and the traverse trolley is controlled to be uncoiled to the uncoiler position.
Further, when the steel coil detection device detects that a steel coil is arranged on the transverse moving trolley or a system fails, the first input end of the controller receives a low-level signal.
Further, when the first input end of the controller receives a low level signal, whether the low level signal disappears within the set time is judged, if the low level signal does not disappear within the set time, the system fault is considered to occur, and an alarm prompt is given.
Further, after the traversing carriage is in place and is in butt joint with the walking beam, when the controller considers that a steel coil is arranged on the traversing carriage, the walking beam is controlled to be fixed, and the traversing carriage is controlled to move.
Further, after the traversing trolley is in place and is in butt joint with the walking beam, if the controller considers that no steel coil exists on the traversing trolley, the controller controls the walking beam to step, and the steel coil on the walking beam is transferred to the traversing trolley.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the limit with the normally closed signal is selected, the induction limit detection mode is changed from an electric opening point to an electric closing point, the steel coil detection device monitors the steel coil occupation condition on the transverse moving trolley in real time, and a level signal is output to the controller; when the steel coil detection device does not detect that a steel coil is arranged on the transverse moving trolley, the steel coil detection device outputs a high-level signal to the controller, and when the steel coil detection device detects that the steel coil is arranged on the transverse moving trolley, the steel coil detection device outputs a low-level signal to the controller; the first input end of the controller monitors level signals sent by the steel coil detection device in real time, and when the first input end of the controller receives high level signals, the controller considers that no steel coil exists on the transverse moving trolley, corresponding subsequent operation is executed, and the steel coil on the walking beam is transferred to the transverse moving trolley; when the first input end of the controller receives the low level signal, the controller considers that the steel coil is arranged on the transverse moving trolley, corresponding follow-up operation is executed, and the steel coil on the transverse moving trolley is transferred to the steel coil trolley. According to the invention, through optimizing a control program, a high-level '1' signal is sent out to the limit when no steel coil exists on the transverse trolley, and the limit is a low-level '0' signal when the steel coil exists on the transverse trolley or the system is abnormal. Therefore, even if external faults occur to cause program distortion, the program can also default that steel coils are arranged on the saddle of the traversing trolley, and dangerous actions such as coil turning, collision of the walking beam and the steel coil trolley and the like can be effectively prevented.
Drawings
FIG. 1 is a schematic diagram of the working principle of the trolley winding up.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the invention provides a safety control system for eliminating transverse trolley coil overturning, which comprises a controller and a steel coil detection device for detecting transverse trolley steel coil occupation signals, wherein the steel coil detection device is electrically connected with a first input end of the controller, the steel coil detection device is used for monitoring the steel coil occupation situation on the transverse trolley in real time and outputting level signals to the controller, when the first input end of the controller receives high level signals, no steel coil is considered to be on the transverse trolley, when the first input end of the controller receives low level signals, a steel coil is considered to be on the transverse trolley, and the controller controls the working states of the transverse trolley and a walking beam according to the received level signals output by the steel coil detection device.
Further, the steel coil detection device adopts a limit switch.
Further, the controller adopts a PLC controller. Of course, the PLC controller may be replaced by another controller, such as a single chip microcomputer.
Further, when the first input end of the controller receives a low level signal, the duration time of the low level signal is judged, and if the duration time of the low level signal exceeds the set time, a system fault is considered to occur.
The system further comprises an alarm device, the alarm device is connected with the output end of the controller, and the controller sends an alarm signal to the alarm device to give an alarm prompt after judging the system fault.
Example two
The embodiment provides a safety control method for eliminating rollover of a traverse trolley, which comprises the following steps:
1) the steel coil detection device monitors the steel coil occupation condition on the transverse moving trolley in real time and outputs a level signal to the controller;
2) when the steel coil detection device does not detect that a steel coil is arranged on the transverse moving trolley, the steel coil detection device outputs a high-level signal to the controller, and when the steel coil detection device detects that the steel coil is arranged on the transverse moving trolley, the steel coil detection device outputs a low-level signal to the controller;
3) the first input end of the controller monitors level signals sent by the steel coil detection device in real time, when the first input end of the controller receives high level signals, the controller considers that no steel coil exists on the traverse trolley, the walking beam is controlled to transfer the steel coil on the walking beam to the traverse trolley, and corresponding subsequent operation is executed; when the first input end of the controller receives the low level signal, the controller considers that the steel coil is arranged on the traverse trolley, controls the traverse trolley to be uncoiled to the uncoiler position, and executes corresponding subsequent operation.
Further, when the steel coil detection device detects that a steel coil is arranged on the transverse moving trolley or a system fails, the first input end of the controller receives a low-level signal.
Further, when the first input end of the controller receives a low level signal, whether the low level signal disappears within the set time is judged, if the low level signal does not disappear within the set time, the system fault is considered to occur, and an alarm prompt is given.
Further, after the traversing trolley is in place and is in butt joint with the walking beam, when the controller considers that a steel coil is arranged on the traversing trolley, the walking beam is controlled to be fixed, and the traversing trolley is controlled to be uncoiled to the uncoiler.
Further, after the traversing trolley is in place and is in butt joint with the walking beam, if the controller considers that no steel coil exists on the traversing trolley, the controller controls the walking beam to step, and the steel coil on the walking beam is transferred to the traversing trolley.
Furthermore, the safety control system for eliminating the rollover of the traversing trolley further comprises an alarm device, wherein the alarm device is connected with the output end of the controller, and the controller is used for detecting external faults and sending an alarm signal to the alarm device for alarm prompt.
According to the invention, through optimizing a control program, when no steel coil exists on the traverse trolley, the limit switches send high-level '1' signals, and when the steel coil exists on the traverse trolley or the system is abnormal (such as communication interruption, power supply interruption and limit switch damage), the limit switches send low-level '0' signals. Therefore, even if external faults occur to cause program distortion, the program can also default to the steel coil on the saddle, and dangerous actions such as coil turning, collision of the walking beam and the steel coil trolley and the like can be effectively prevented.
The invention changes the induction limit detection mode from the electric open point to the electric close point by selecting the limit with the normally closed signal, and can consider that the steel coil is detected after the limit fault, thereby avoiding the false action.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A safety control system for eliminating rollover of a trolley is characterized in that: including the controller with be used for detecting the coil of strip detection device that sideslip dolly coil of strip possessed the signal, coil of strip detection device is connected with the first input electricity of controller, coil of strip detection device is used for the coil of strip on the real-time supervision sideslip dolly to account for the condition, and output level signal gives the controller, coil of strip detection device adopts limit switch, and when not having the coil of strip on the sideslip dolly, limit switch sends high level signal, when having coil of strip or the abnormal condition of system appearance on the sideslip dolly, limit switch all sends low level signal, when high level signal was received to the first input of controller, then think that there is the coil of strip on the sideslip dolly, the controller is according to the coil of strip detection device output's level signal control sideslip dolly, the coil of strip detection device output, In the working state of the walking beam, the controller considers that no steel coil exists on the traverse trolley, corresponding subsequent operation is executed, and the walking beam is controlled to transfer the steel coil on the walking beam to the traverse trolley; when the first input end of the controller receives a low level signal, the controller considers that a steel coil is arranged on the traversing trolley, controls the traversing trolley to be uncoiled to the uncoiler position, and executes corresponding subsequent operation; when the first input end of the controller receives a low level signal, the duration time of the low level signal is judged, and if the duration time of the low level signal exceeds the set time, the system fault is considered to occur.
2. The safety control system for eliminating rollover of a traverse trolley as recited in claim 1, wherein the controller is a PLC controller.
3. The safety control system for eliminating rollover of a traverse trolley as recited in claim 1, further comprising an alarm device, wherein the alarm device is connected with an output end of the controller, and the controller sends an alarm signal to the alarm device to give an alarm prompt after judging a system fault.
4. A safety control method for eliminating a rollover of a traverse, using the safety control system for eliminating a rollover of a traverse as recited in any one of claims 1 to 3, comprising the steps of:
1) the steel coil detection device monitors the steel coil occupation condition on the transverse moving trolley in real time and outputs a level signal to the controller;
2) when the steel coil detection device does not detect that a steel coil is arranged on the transverse moving trolley, the steel coil detection device outputs a high-level signal to the controller, and when the steel coil detection device detects that the steel coil is arranged on the transverse moving trolley, the steel coil detection device outputs a low-level signal to the controller;
3) the first input end of the controller monitors level signals sent by the steel coil detection device in real time, and when the first input end of the controller receives high level signals, the controller considers that no steel coil exists on the transverse moving trolley, corresponding subsequent operation is executed, and the walking beam is controlled to transfer the steel coil on the walking beam to the transverse moving trolley; when the first input end of the controller receives a low level signal, the controller considers that a steel coil is arranged on the traversing trolley, controls the traversing trolley to be uncoiled to the uncoiler position, and executes corresponding subsequent operation;
when the steel coil detection device detects that a steel coil is arranged on the transverse moving trolley or a system fails, a first input end of the controller receives a low-level signal;
when the first input end of the controller receives a low level signal, whether the low level signal disappears within the set time is judged, if the low level signal does not disappear within the set time, the system is considered to be in fault, and alarm prompt is carried out.
5. The safety control method for eliminating rollover of a traverse trolley as claimed in claim 4, wherein after the traverse trolley is in place and butted with the walking beam, the walking beam is controlled to be stationary and the traverse trolley is controlled to move when the controller determines that a steel coil is on the traverse trolley.
6. The safety control method for eliminating the rollover of the traverse trolley as recited in claim 4, wherein the controller controls the walking beam to step when the controller determines that no steel coil is on the traverse trolley after the traverse trolley is in place and the walking beam is in butt joint, and transfers the steel coil on the walking beam to the traverse trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561232.XA CN111913428B (en) | 2020-06-18 | 2020-06-18 | Safety control system and method for eliminating rollover of traversing trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561232.XA CN111913428B (en) | 2020-06-18 | 2020-06-18 | Safety control system and method for eliminating rollover of traversing trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111913428A CN111913428A (en) | 2020-11-10 |
| CN111913428B true CN111913428B (en) | 2021-09-10 |
Family
ID=73237924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010561232.XA Active CN111913428B (en) | 2020-06-18 | 2020-06-18 | Safety control system and method for eliminating rollover of traversing trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111913428B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811052B (en) * | 2020-12-29 | 2022-11-29 | 山东钢铁集团日照有限公司 | Full-automatic two-span double-step beam winding method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4017001A (en) * | 1975-01-10 | 1977-04-12 | Maurice Barthalon | Electromagnetic system for propulsion and programmed positioning |
| CN102129220A (en) * | 2010-01-14 | 2011-07-20 | 宝山钢铁股份有限公司 | Control device and method for preventing steel coils from rollover in transportation |
| CN104834262A (en) * | 2014-12-31 | 2015-08-12 | 浙江吉利汽车有限公司 | Automobile stamping production line and scrap line interconnected control protection device and method |
| CN109500136A (en) * | 2018-11-20 | 2019-03-22 | 攀钢集团攀枝花钢钒有限公司 | The control system and method for upper volume trolley coil of strip automatic centering in height |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09156734A (en) * | 1995-12-06 | 1997-06-17 | Kawasaki Steel Corp | Tapered pipe longitudinal transfer device |
| CN103217091B (en) * | 2013-03-25 | 2015-11-11 | 莱芜钢铁集团有限公司 | A kind of device and method detecting position of steel coil |
| CN108144986B (en) * | 2016-12-06 | 2019-07-19 | 上海梅山钢铁股份有限公司 | Prevent coiling machine from unloading the method for controlling security of volume turnup |
| CN207232666U (en) * | 2017-09-28 | 2018-04-13 | 芜湖东旭光电装备技术有限公司 | Control device for glass-cutting |
| CN110586688B (en) * | 2019-09-09 | 2024-04-12 | 中冶南方工程技术有限公司 | Steel coil car and coil touch detection method thereof |
-
2020
- 2020-06-18 CN CN202010561232.XA patent/CN111913428B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4017001A (en) * | 1975-01-10 | 1977-04-12 | Maurice Barthalon | Electromagnetic system for propulsion and programmed positioning |
| CN102129220A (en) * | 2010-01-14 | 2011-07-20 | 宝山钢铁股份有限公司 | Control device and method for preventing steel coils from rollover in transportation |
| CN104834262A (en) * | 2014-12-31 | 2015-08-12 | 浙江吉利汽车有限公司 | Automobile stamping production line and scrap line interconnected control protection device and method |
| CN109500136A (en) * | 2018-11-20 | 2019-03-22 | 攀钢集团攀枝花钢钒有限公司 | The control system and method for upper volume trolley coil of strip automatic centering in height |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111913428A (en) | 2020-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2657740C (en) | System for monitoring a plurality of sensors | |
| CN111913428B (en) | Safety control system and method for eliminating rollover of traversing trolley | |
| JP5901371B2 (en) | Communication device for movable platform fence | |
| CN105068509B (en) | A kind of Digit Control Machine Tool overtravel protection and deactivation system | |
| CN108879607B (en) | Anti-adhesion control device and control method for contactor | |
| CN201753236U (en) | Intelligent limiting audible and visual alarm controller of crane | |
| CN202400743U (en) | Slip-preventing device for crane | |
| CN104670026B (en) | A kind of rail vehicles and its fall bow circuit and fall bow control method | |
| CN108319321A (en) | Breaker start pulse signal output control method, device and circuit breaker system | |
| CN103243668A (en) | Automatic railing machine with intelligent light perception car smashing prevention redundancy system and control method thereof | |
| CN110376944B (en) | Sequence control abnormal interrupt processing method | |
| CN211319359U (en) | Device for controlling turning transport vehicle | |
| CN109516388B (en) | Automatic recognition system for multiplying power of crane | |
| CN112319300A (en) | Intelligent charger and intelligent charging management method thereof | |
| CN103509933B (en) | Method for treating trolley type spherulitic graphite cast pipe annealing furnace of fault treatment system | |
| CN201458573U (en) | Bypass control circuit on crane | |
| CN101650559B (en) | System and method for automatically closing oxygen lance during network interruption of converter control system | |
| JP4662757B2 (en) | Train detection adapter for closed-circuit type railroad crossing controller | |
| CN104175884A (en) | Network control method for BLB (Bus Line Contactor) | |
| KR101623759B1 (en) | Circuit breaker control system and method for distributing board | |
| CN110148921A (en) | A kind of relay protection and control method, system and M take N tripgear | |
| CN215924243U (en) | State monitoring system of material feeding and lifting control system of blast furnace | |
| CN218866919U (en) | Control system and equipment | |
| CN112636310A (en) | Drilling motor direct current contactor breaking protection system and method based on current detection | |
| CN213163564U (en) | Automatic welding system for flow guide plate of heat meter and water meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |