CN114798223B - But early warning is adjusted in order to prevent panel beating sprays panel beating spraying system that line stopped line - Google Patents
But early warning is adjusted in order to prevent panel beating sprays panel beating spraying system that line stopped line Download PDFInfo
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- CN114798223B CN114798223B CN202210439072.0A CN202210439072A CN114798223B CN 114798223 B CN114798223 B CN 114798223B CN 202210439072 A CN202210439072 A CN 202210439072A CN 114798223 B CN114798223 B CN 114798223B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/004—Arrangements for controlling delivery; Arrangements for controlling the spray area comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/081—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to the weight of a reservoir or container for liquid or other fluent material; responsive to level or volume of liquid or other fluent material in a reservoir or container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a sheet metal spraying system capable of early warning and adjusting to prevent a sheet metal spraying line from stopping, which relates to the technical field of sheet metal spraying lines and comprises an MES server, a main control system, more than one medicine water tank, a baking oven and more than one spraying line, wherein the spraying line is provided with a transmission chain, more than one workpiece is mounted on the transmission chain, and the medicine water tank at least comprises one of a weak base oil removal tank, a phosphating tank and a water washing tank; the liquid medicine tank is connected with a medicine adding machine or a water purifying machine; in the process of spraying the workpiece by the metal plate spraying system, the main control system acquires the field technological parameters in real time through the detection sensor, and when the field technological parameters reach the early warning condition, the field technological parameters are regulated so as to prevent the metal plate spraying line from stopping, and the problem of high cost caused by frequent line stopping adjustment due to abnormal field technological parameters of the spraying line of manufacturers is solved.
Description
Technical Field
The invention relates to the technical field of metal plate spraying lines, in particular to a metal plate spraying system capable of early warning and adjusting to prevent the metal plate spraying line from stopping.
Background
In the sheet metal industry, sheet metal spraying is an essential and particularly important process link in the processing process, and the spraying effect can directly influence the performance and quality of a later-stage sheet metal product.
The current spraying operation mode is as follows: setting on-site process parameters of a plurality of medicine pools, the temperature of a baking furnace and the running speed of a spraying line according to the material types and the line following personnel; a plurality of pools with different pH values are arranged on the spray shop floor, the liquid medicine in the pools is pumped up to be sprayed on the metal plate through a spray head, and finally the liquid medicine is dried through the baking furnace; the line following personnel periodically check the on-site process parameters of the spray line medicine water tanks and the baking furnace temperature, manually add medicine water according to the detection result, and adjust the furnace temperature; when the on-site process parameter of a certain medicine water tank exceeds the range or the furnace temperature of a certain baking furnace exceeds the range, the operation of the spray line needs to be stopped manually; adding liquid medicine to the corresponding pool by a line following person, adjusting the temperature of the baking furnace to be within the range, and starting the spraying line to operate.
In the current operation mode, the following problems cannot be solved:
1) The material type, the on-site technological parameters of the medicine water tank, the furnace temperature of the baking furnace and the running speed of the spraying line are all judged and set by a line following personnel. The operation does not have fool-proofing, and once the sprayed metal plate is in error, the metal plate can be scrapped.
2) The automation degree is low, and on-site process parameters, baking furnace temperature and spray line running speed of a plurality of spray line medicine water pools are required to be checked regularly by line following personnel. If the inspection of the line following personnel is not in time, the speed of adding liquid medicine and adjusting the temperature of the furnace is slow, the on-site process parameters of some liquid medicine pools or the temperature of the baking furnace are not up to the standard, and if the spraying line continues to run, the performance and quality of the produced sheet metal product cannot meet the requirements, and the quality cannot be ensured.
3) The adjustment time of the processor is not intelligent for various parameter indexes. Too short adjustment time can lead to the need of greatly improving rated power and capacity of a chemical adding machine, a water purifying machine and a combustion machine and increasing unnecessary cost. The adjustment time is too long, and the time for the intervention adjustment of the line following personnel is too short under the condition that the automatic adjustment of the processor fails, so that the line following personnel can stop the spraying line without the adjustment.
4) And the line is frequently stopped, line following personnel are required to detect and adjust liquid medicine to a plurality of liquid medicine pools during line stopping, the temperature of a baking furnace is adjusted, all workers can only wait at the moment, and all workers can work after the line is recovered to run after spraying, so that the labor cost is high, the production efficiency is reduced, and the cost is increased intangibly.
5) And each spraying line needs to be independently controlled, so that unified control cannot be realized.
Disclosure of Invention
The invention aims to avoid the defects of the prior art and provides a sheet metal spraying system capable of early warning and adjusting to prevent a sheet metal spraying line from stopping.
The above object of the present invention is achieved by the following technical means:
a sheet metal spraying system capable of being adjusted in an early warning mode to prevent a sheet metal spraying line from stopping comprises an MES server, a main control system, more than one medicine water tank, a baking furnace and more than one spraying line, wherein the spraying line is provided with a transmission chain, and more than one workpiece is mounted on the transmission chain; the liquid medicine tank at least comprises one of a weak base oil removal tank, a phosphating tank and a water washing tank; the liquid medicine tank is connected with a medicine adding machine or a water purifier, and the baking furnace provides heat for the liquid medicine tank by the burner;
the main control system comprises an acquisition subsystem, a control subsystem, a display subsystem and an alarm subsystem which are interacted with the main control system data;
the acquisition subsystem is connected with the MES server through an MES network interface, and is also connected with a code reader, a workpiece counter and a detection sensor, wherein the detection sensor is used for acquiring field process parameters in real time;
the display subsystem is connected with a display and/or a sound box;
The alarm subsystem is provided with an audible and visual alarm device which is connected with the display subsystem and presents alarm information from a display and/or sound;
the control subsystem is connected with a PLC stop line control module, and the PLC stop line control module drives the transmission chain to run; the control subsystem controls the medicine adding or water adding of the medicine water tank, controls the temperature of the baking furnace, and controls the medicine water or water in the medicine water tank to spray on a workpiece through a spray head; the control subsystem is also connected with a power supply module and a clock module;
in the process of spraying the workpiece by the metal plate spraying system, the main control system acquires the on-site process parameters in real time through the detection sensor, and when the on-site process parameters reach the early warning condition, the on-site process parameters are regulated so as to prevent the metal plate spraying line from stopping; the on-site process parameters at least comprise one of the parameters of a free alkalinity of the weak base oil removal tank, a water washing PH value of the water washing tank, a phosphating PH value of the phosphating tank, conductivity of the water washing tank, phosphating acidity of the phosphating tank and a temperature parameter of the baking furnace.
Further, the control subsystem consists of a CPU operation control unit, a data storage unit, a data acquisition sensor data unit, a spraying line information display interface, a PLC interface for controlling the running speed and stopping of the spraying line, an MES network interface, a code reader, a workpiece counter, a chemical feeder control module, a water purifier control module and a combustion engine control module.
Further, the code reader is an infrared code scanning device; and an acquisition subsystem: the infrared code scanning device is connected with RS232, and the workpiece counter and the detection sensor are connected with RS 485; and a control subsystem: and the RS485 is connected with a PLC stop line control module, a chemical feeder control module, a water purifier control module and a combustor control module.
Preferably, the main control system at least adopts one of the following detection sensors to collect the on-site process parameters in real time: a free alkalinity detection sensor, a water washing PH value detection sensor, a phosphorization total acidity detection sensor, a conductivity detection sensor and a temperature detection sensor;
free alkalinity detection sensor: the system is used for detecting the free alkalinity of the weak base oil removal tank and uploading detection data to a main control system;
washing PH value detection sensor: the PH value detection device is used for detecting the PH value of the water washing tank and uploading detection data to the main control system;
a phosphorization PH value detection sensor: the PH value detection device is used for detecting the PH value of the phosphating pool and uploading detection data to the main control system;
total acidity detection sensor of phosphorization: the device is used for detecting the total acidity of the phosphating pool and uploading detection data to a main control system;
conductivity detection sensor: the system is used for detecting the conductivity of the water washing tank and uploading detection data to the main control system;
Temperature detection sensor: for detecting the temperature of the oven and uploading the detected data to the host system.
Preferably, the main control system displays abnormal information to remind the following personnel to intervene in abnormal treatment by adopting at least one of the following detection instruments:
the flow detector of the dosing machine is arranged on an output pipeline of the dosing machine and is used for detecting the flow of the dosing machine per minute and uploading detection data to the main control system;
the water purifier flow detector is arranged on an output pipeline of the water purifier and is used for detecting the flow of the water purifier per minute and uploading detection data to the main control system;
the raw liquid concentration detection sensor of the dosing machine is arranged in the raw liquid container of the dosing machine and is used for detecting the raw liquid concentration of the dosing machine and uploading detection data to the main control system;
the water purifier stock solution concentration detection sensor is arranged in the water purifier stock solution container and is used for detecting the water purifier stock solution concentration and uploading detection data to the main control system.
Preferably, the display subsystem is further used for displaying production information of each spraying line, and the production information at least comprises one of the number of the spraying line, the number of the produced work order, the work order information, the material type, the total number of the workpieces, the running speed of the spraying line, the spraying starting time, the number of the mounted workpieces, the line stopping state and the spraying state, and corresponding work order production statistical information;
The display subsystem is also used for displaying at least one of the following information of the spray line: the position number of each medicine water tank, the corresponding process name, the corresponding parameters of each medicine water, the conductivity parameters, the working state of each medicine adding machine, the temperature of each baking oven and the working state of each burner.
Further, in the process of spraying the workpiece by the metal plate spraying system, the on-site technological parameters are adjusted by adopting the following steps:
s1, a code reader scans or a line-following person inputs a work order bar code, and the work order bar code is uploaded to an MES server through a main control system and an MES network interface to match work order information of the corresponding work order bar code, and the work order information is fed back to the main control system;
the work order information at least comprises one of spray line numbers, material types, total number of workpieces and running speed of a chain;
s2, automatically adding the work order information to work order production statistical information, wherein the work order production statistical information at least comprises one of spray line numbers, work order numbers, material types, total number of workpieces, running speed of a chain, start spray time, number of workpieces hung, stop line state and spray state;
s3, the master control system invokes an MES server through an MES network interface according to the material type corresponding to the work order number to obtain early warning and alarm range information, and feeds the early warning and alarm range information back to the master control system and updates the early warning and alarm range information; the early warning and alarming range information at least comprises one early warning value and an alarming value of free alkalinity, PH value, total acidity, conductivity and temperature corresponding to the free alkalinity corresponding to each position number and process name;
Meanwhile, the MES server obtains adjustment target range information according to the material types of the early warning and alarm range information, wherein the adjustment target range information comprises the following components:
each position number, each process name, the corresponding free alkalinity of each chemical adding machine, the PH value of phosphating and one of the target range values of total acidity of phosphating,
each position number, each process name, the corresponding water washing PH value of each water purifier and one target range value of water washing conductivity,
each position number, each process name, and a temperature target range value corresponding to each burner;
s4, according to the information of the early warning and alarming range, the position number and the process name of the information of the adjusting target range, combining the capacity of a liquid medicine tank, the flow rate of each minute of a chemical adding machine and a water purifier, the concentration values of raw liquid of the chemical adding machine and the water purifier and the power of a combustion machine,
obtaining automatic adjustment time T1, exception handling time T2 and space capacity time T3;
forming automatic adjustment parameter information by the position number, the process name, the liquid medicine tank capacity, the flow of the chemical adding machine and the water purifier per minute, the raw liquid concentration values of the chemical adding machine and the water purifier, the power of the combustion machine, the automatic adjustment time T1, the abnormal processing time T2 and the space capacity time T3, and feeding back the automatic adjustment parameter information to a main control system;
S5, the main control system collects field process parameters in real time through the detection sensor;
s6, when the on-site process parameters reach the lower limit of the early warning value of the early warning and warning range information, the on-site process parameters are adjusted according to the automatic adjustment parameter information;
judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the automatic adjustment time T1, if so, ending the adjustment of the on-site process parameters in advance; if the number of the times of the operation is not the same,
the main control system displays abnormal information to remind a line following person of intervention abnormal treatment; the abnormal information at least comprises one of abnormal flow rate of the chemical adding machine per minute, abnormal flow rate of the water purifier per minute, abnormal concentration of stock solution of the chemical adding machine, abnormal concentration of stock solution of the water purifier and abnormal power of the combustion machine;
judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the exception processing time T2, if so, stopping adjusting the on-site process parameters; if the number of the times of the operation is not the same,
the line following personnel continue to perform exception processing within the space capacity time T3, if the process parameters reach the target range value of the adjustment target range information within the space capacity time T3, the on-site process parameter adjustment is finished, and otherwise, the line stopping alarm processing is performed.
Further, in the process of spraying the workpiece by the metal plate spraying system, the method further comprises the following steps:
more than one workpiece is mounted on a transmission chain of a spray line, and when the workpiece passes through a workpiece counter, a master control system automatically counts the workpiece and updates work order production statistical information;
according to the work order information, the work piece is sprayed by the spray heads for more than one liquid medicine tanks in sequence, and/or is dried by more than one baking furnaces.
Further, in step S6,
the acquisition subsystem detects the on-site process parameters through the detection sensor, when the on-site process parameters reach the lower limit of the early warning value of the early warning and warning range information, early warning is made on a display and/or a sound of the display subsystem, and the on-site process parameters are adjusted according to the automatic adjustment parameter information;
judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the automatic adjustment time T1, if so, ending the adjustment of the on-site process parameters in advance; if the number of the times of the operation is not the same,
the main control system displays abnormal information on a display and/or sound of the display subsystem to remind a line following person of intervening abnormal treatment; the abnormal information at least comprises one of abnormal flow rate of the chemical adding machine per minute, abnormal flow rate of the water purifier per minute, abnormal concentration of stock solution of the chemical adding machine, abnormal concentration of stock solution of the water purifier and abnormal power of the combustion machine;
Judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the exception processing time T2, if so, stopping adjusting the on-site process parameters; if the number of the times of the operation is not the same,
the line following personnel continue to perform exception handling within the space capacity time T3, if the process parameters reach the target range value of the adjustment target range information within the space capacity time T3, the on-site process parameter adjustment is finished, otherwise, the control subsystem sends a line stopping instruction to the PLC line stopping control module, the transmission chain stops working, and the main control system displays the stop alarm information on a display and/or a sound of the display subsystem.
Further, the space capacity time T3 is the duration from reaching the lower limit of the early warning value of the early warning and alarming range information to the lower limit of the alarming value in the normal operation process of the site, and if the space capacity time T3 is exceeded and the process parameter does not reach the target range value of the adjusting target range information, the machine stops the alarming process; the abnormality processing time T2 is set between the automatic adjustment time T1 and the space capacity time T3.
The beneficial effects produced by adopting the technical scheme are that:
1. in the process of spraying the workpiece by the metal plate spraying system, the acquisition subsystem acquires the field technological parameters in real time through the detection sensor, and when the main control system judges that the field technological parameters reach the early warning condition, the field technological parameters are regulated so as to prevent the metal plate spraying line from stopping, thereby solving the problem of high cost caused by frequent line stopping adjustment required by a manufacturer due to abnormal field technological parameters of the spraying line
2. According to the invention, on-site process parameters such as a plurality of spray line medicine pools, a baking furnace, a water purifier, a medicine adding machine and the like do not need to be checked regularly by a line following person, and the running speed of the spray line is monitored and adjusted in real time through the coordination of a main control system, a control subsystem, a detection sensor, a detection instrument and the like and on-site process equipment, so that the automation degree is high, and the performance and quality of sprayed sheet metal workpiece products are ensured.
3. According to the invention, according to the early warning and alarm range information, the position number and the process name of the target range information, the automatic adjustment time T1 and the space capacity time T3 are obtained by combining the liquid medicine tank capacity, the flow rate of the chemical adding machine and the water purifier per minute, the raw liquid concentration value of the chemical adding machine and the water purifier and the power of the combustion machine, and three time defense lines of the automatic adjustment time T1, the abnormal processing time T2 and the space capacity time T3 are set before the stop line alarm condition is triggered so as to adjust the on-site process parameters to reach the target range value, thereby preventing the metal plate spraying line from stopping, ensuring the production quality and improving the production efficiency.
4. In the invention, in the steps, except for exception handling T2 and space capacity time T3 which need to be accessed by personnel, the on-site process parameters are intelligently adjusted by a machine, so that the automation degree is high.
5. In the invention, T1-T3 is set for the line following personnel to fully solve the problem of the abnormal treatment of the spray line.
Drawings
FIG. 1 is a schematic diagram of a sheet metal spray system capable of early warning adjustment to prevent a stop of a sheet metal spray line according to an embodiment;
FIG. 2 is a schematic diagram of a master control system module according to an embodiment;
FIG. 3 is a logic diagram of a sheet metal spray system that can be pre-alarm adjusted to prevent a stop of a sheet metal spray line according to an embodiment;
fig. 4 is a schematic diagram of steps for adjusting on-site process parameters in the process of spraying a workpiece by the sheet metal spraying system according to the embodiment.
The method comprises the following steps of 1, a main control system; an MES server; 3. a code reader; 4. a workpiece counter; a PLC stop line control module; 6. a drive chain; 7. a workpiece; 8. a medicine water tank; 9. baking oven; 10. a dosing machine control module; 11. a spray head; 12. a combustor control module; a detection sensor; 14, a temperature detection sensor; 15. a water purifier control module; 16. and (5) line following personnel.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by a person of ordinary skill in the art without inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
1, as shown in fig. 1-3, a sheet metal spraying system capable of early warning and adjusting to prevent a sheet metal spraying line from stopping comprises an MES server, a main control system, more than one medicine water tank, a baking oven and more than one spraying line, wherein the spraying line is provided with a transmission chain, and more than one workpiece is mounted on the transmission chain; the liquid medicine tank at least comprises one of a weak base oil removal tank, a phosphating tank and a water washing tank; the liquid medicine tank is connected with a medicine adding machine or a water purifier, and the baking furnace provides heat for the liquid medicine tank by the burner;
the main control system comprises an acquisition subsystem, a control subsystem, a display subsystem and an alarm subsystem which are interacted with the main control system data;
the acquisition subsystem is connected with the MES server through an MES network interface, and is also connected with a code reader, a workpiece counter and a detection sensor, wherein the detection sensor is used for acquiring field process parameters in real time;
The display subsystem is connected with a display and/or a sound box;
the alarm subsystem is provided with an audible and visual alarm device which is connected with the display subsystem and presents alarm information from a display and/or sound;
the control subsystem is connected with a PLC stop line control module, and the PLC stop line control module drives the transmission chain to run; the control subsystem controls the medicine adding or water adding of the medicine water tank, controls the temperature of the baking furnace, and controls the medicine water or water in the medicine water tank to spray on a workpiece through a spray head; the control subsystem is also connected with a power supply module and a clock module;
in the process of spraying the workpiece by the metal plate spraying system, the main control system acquires the on-site process parameters in real time through the detection sensor, and when the on-site process parameters reach the early warning condition, the on-site process parameters are regulated so as to prevent the metal plate spraying line from stopping; the on-site process parameters at least comprise one of the parameters of a free alkalinity of the weak base oil removal tank, a water washing PH value of the water washing tank, a phosphating PH value of the phosphating tank, conductivity of the water washing tank, phosphating acidity of the phosphating tank and a temperature parameter of the baking furnace.
In the process of spraying the workpiece by the metal plate spraying system, the acquisition subsystem acquires the field technological parameters in real time through the detection sensor, and when the main control system judges that the field technological parameters reach the early warning condition, the field technological parameters are regulated so as to prevent the metal plate spraying line from stopping, thereby solving the problem of high cost caused by frequent line stopping adjustment required by a manufacturer due to abnormal field technological parameters of the spraying line
Embodiment 2, other technical features of the present embodiment are the same as those of embodiment 1, except that the control subsystem is composed of a CPU operation control unit, a data storage unit, an acquisition sensor data unit, a display spray line information interface, a PLC interface for controlling the operation speed and stop of the spray line, an MES network interface, a code reader, a workpiece counter, a chemical feeder control module, a water purifier control module, and a burner control module.
Embodiment 3, other technical features of the present embodiment are the same as those of embodiment 1, except that, as shown in fig. 1-2, the code reader is an infrared code scanning device or other code scanning devices with the same function; and an acquisition subsystem: the infrared code scanning device is connected with RS232, and the workpiece counter and the detection sensor are connected with RS 485; and a control subsystem: and the RS485 is connected with a PLC stop line control module, a chemical feeder control module, a water purifier control module and a combustor control module.
Embodiment 4, other technical features of the present embodiment are the same as those of embodiment 1, and the difference is that the main control system at least adopts one of the following detection sensors to collect the field process parameters in real time: a free alkalinity detection sensor, a water washing PH value detection sensor, a phosphorization total acidity detection sensor, a conductivity detection sensor and a temperature detection sensor;
Free alkalinity detection sensor: the system is used for detecting the free alkalinity of the weak base oil removal tank and uploading detection data to a main control system;
washing PH value detection sensor: the PH value detection device is used for detecting the PH value of the water washing tank and uploading detection data to the main control system;
a phosphorization PH value detection sensor: the PH value detection device is used for detecting the PH value of the phosphating pool and uploading detection data to the main control system;
total acidity detection sensor of phosphorization: the device is used for detecting the total acidity of the phosphating pool and uploading detection data to a main control system;
conductivity detection sensor: the system is used for detecting the conductivity of the water washing tank and uploading detection data to the main control system;
temperature detection sensor: for detecting the temperature of the oven and uploading the detected data to the host system.
Embodiment 5, other technical features of the present embodiment are the same as those of embodiment 1, and the difference is that, as shown in fig. 1-3, the main control system at least adopts one of the following detecting instruments to display abnormal information to remind the following personnel to intervene in the abnormal treatment:
the flow detector of the dosing machine is arranged on an output pipeline of the dosing machine and is used for detecting the flow of the dosing machine per minute and uploading detection data to the main control system;
the water purifier flow detector is arranged on an output pipeline of the water purifier and is used for detecting the flow of the water purifier per minute and uploading detection data to the main control system;
The raw liquid concentration detection sensor of the dosing machine is arranged in the raw liquid container of the dosing machine and is used for detecting the raw liquid concentration of the dosing machine and uploading detection data to the main control system;
the water purifier stock solution concentration detection sensor is arranged in the water purifier stock solution container and is used for detecting the water purifier stock solution concentration and uploading detection data to the main control system.
According to the invention, on-site process parameters such as a plurality of spray line medicine pools, a baking furnace, a water purifier, a medicine adding machine and the like do not need to be checked regularly by a line following person, and the running speed of the spray line is monitored and adjusted in real time through the coordination of a main control system, a control subsystem, a detection sensor, a detection instrument and the like and on-site process equipment, so that the automation degree is high, and the performance and quality of sprayed sheet metal workpiece products are ensured.
Embodiment 6, other technical features of the present embodiment are the same as those of embodiment 1, except that, as shown in fig. 1-3, the display subsystem is further configured to display production information of each spray line, where the production information includes at least one of a number of the spray line, a number of a work order to be produced, work order information, a material type, a total number of work pieces, an operation speed of the spray line, a start spray time, a number of mounted work pieces, a stop line state, a spray state, and corresponding work order production statistics information;
The display subsystem is also used for displaying at least one of the following information of the spray line: the position number of each medicine water tank, the corresponding process name, the corresponding parameters of each medicine water, the conductivity parameters, the working state of each medicine adding machine, the temperature of each baking oven and the working state of each burner.
s1, a code reader scans or a line-following person inputs a work order bar code, and the work order bar code is uploaded to an MES server through a main control system and an MES network interface to match work order information of the corresponding work order bar code, and the work order information is fed back to the main control system;
the work order information at least comprises one of spray line numbers, material types, total number of workpieces and running speed of a chain;
s2, automatically adding the work order information to work order production statistical information, wherein the work order production statistical information at least comprises one of spray line numbers, work order numbers, material types, total number of workpieces, running speed of a chain, start spray time, number of workpieces hung, stop line state and spray state;
S3, the master control system invokes an MES server through an MES network interface according to the material type corresponding to the work order number to obtain early warning and alarm range information, and feeds the early warning and alarm range information back to the master control system and updates the early warning and alarm range information; the early warning and alarming range information at least comprises one early warning value and an alarming value of free alkalinity, PH value, total acidity, conductivity and temperature corresponding to the free alkalinity corresponding to each position number and process name;
meanwhile, the MES server obtains adjustment target range information according to the material types of the early warning and alarm range information, wherein the adjustment target range information comprises the following components:
each position number, each process name, the corresponding free alkalinity of each chemical adding machine, the PH value of phosphating and one of the target range values of total acidity of phosphating,
each position number, each process name, the corresponding water washing PH value of each water purifier and one target range value of water washing conductivity,
each position number, each process name, and a temperature target range value corresponding to each burner;
s4, according to the information of the early warning and alarming range, the position number and the process name of the information of the adjusting target range, combining the capacity of a liquid medicine tank, the flow rate of each minute of a chemical adding machine and a water purifier, the concentration values of raw liquid of the chemical adding machine and the water purifier and the power of a combustion machine,
Obtaining automatic adjustment time T1, exception handling time T2 and space capacity time T3;
forming automatic adjustment parameter information by the position number, the process name, the liquid medicine tank capacity, the flow of the chemical adding machine and the water purifier per minute, the raw liquid concentration values of the chemical adding machine and the water purifier, the power of the combustion machine, the automatic adjustment time T1, the abnormal processing time T2 and the space capacity time T3, and feeding back the automatic adjustment parameter information to a main control system;
s5, the main control system collects field process parameters in real time through the detection sensor;
s6, when the on-site process parameters reach the lower limit of the early warning value of the early warning and warning range information, the on-site process parameters are adjusted according to the automatic adjustment parameter information;
judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the automatic adjustment time T1, if so, ending the adjustment of the on-site process parameters in advance; if the number of the times of the operation is not the same,
the main control system displays abnormal information to remind a line following person of intervention abnormal treatment; the abnormal information at least comprises one of abnormal flow rate of the chemical adding machine per minute, abnormal flow rate of the water purifier per minute, abnormal concentration of stock solution of the chemical adding machine, abnormal concentration of stock solution of the water purifier and abnormal power of the combustion machine;
judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the exception processing time T2, if so, stopping adjusting the on-site process parameters; if the number of the times of the operation is not the same,
The line following personnel continue to perform exception processing within the space capacity time T3, if the process parameters reach the target range value of the adjustment target range information within the space capacity time T3, the on-site process parameter adjustment is finished, and otherwise, the line stopping alarm processing is performed.
According to the invention, according to the early warning and alarm range information, the position number and the process name of the target range information, the automatic adjustment time T1 and the space capacity time T3 are obtained by combining the liquid medicine tank capacity, the flow rate of the chemical adding machine and the water purifier per minute, the raw liquid concentration value of the chemical adding machine and the water purifier and the power of the combustion machine, and three time defense lines of the automatic adjustment time T1, the abnormal processing time T2 and the space capacity time T3 are set before the stop line alarm condition is triggered so as to adjust the on-site process parameters to reach the target range value, thereby preventing the metal plate spraying line from stopping, ensuring the production quality and improving the production efficiency.
In the invention, in the steps, except for exception handling T2 and space capacity time T3 which need to be accessed by personnel, the on-site process parameters are intelligently adjusted by a machine, so that the automation degree is high.
Embodiment 8, other technical features of the present embodiment are the same as those of embodiment 7, except that in the process of spraying the workpiece by the sheet metal spraying system, the method further includes the following steps:
More than one workpiece is mounted on a transmission chain of a spray line, and when the workpiece passes through a workpiece counter, a master control system automatically counts the workpiece and updates work order production statistical information;
according to the work order information, the work piece is sprayed by the spray heads for more than one liquid medicine tanks in sequence, and/or is dried by more than one baking furnaces.
In embodiment 9, other technical features are the same as those in embodiment 7, except that in step S6,
the acquisition subsystem detects the on-site process parameters through the detection sensor, when the on-site process parameters reach the lower limit of the early warning value of the early warning and warning range information, early warning is made on a display and/or a sound of the display subsystem, and the on-site process parameters are adjusted according to the automatic adjustment parameter information;
judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the automatic adjustment time T1, if so, ending the adjustment of the on-site process parameters in advance; if the number of the times of the operation is not the same,
the main control system displays abnormal information on a display and/or sound of the display subsystem to remind a line following person of intervening abnormal treatment; the abnormal information at least comprises one of abnormal flow rate of the chemical adding machine per minute, abnormal flow rate of the water purifier per minute, abnormal concentration of stock solution of the chemical adding machine, abnormal concentration of stock solution of the water purifier and abnormal power of the combustion machine;
Judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the exception processing time T2, if so, stopping adjusting the on-site process parameters; if the number of the times of the operation is not the same,
the line following personnel continue to perform exception handling within the space capacity time T3, if the process parameters reach the target range value of the adjustment target range information within the space capacity time T3, the on-site process parameter adjustment is finished, otherwise, the control subsystem sends a line stopping instruction to the PLC line stopping control module, the transmission chain stops working, and the main control system displays the stop alarm information on a display and/or a sound of the display subsystem.
In the invention, T1-T3 is set for the line following personnel to fully solve the problem of the abnormal treatment of the spray line.
embodiment 12, other technical features of which are the same as those of embodiment 7, is different in that the pre-warning and alarm range information further includes,
embodiment 13 has the same technical features as embodiment 7, except that the adjustment target range information further includes,
embodiment 14, other technical features of which are the same as those of embodiment 7, except that the automatic adjustment parameter information further includes,
in example 15, this example is an example of the process of obtaining the auto-adjustment time T1, the abnormality processing time T2, and the space capacity time T3 for the weak base degreasing 1 in the step S4 of example 7 with the position number of 01.
According to the position number 01, the process name is the following data of weak base oil removal 1:
1) Early warning and alarm range information: the free alkalinity early warning range is <9 or >13, and the warning (warning stop) range is <8 or >14;
2) Adjusting target range information: the value of the target range of the free alkalinity of the corresponding liquid medicine pool is 11-12;
3) Automatically adjusting parameter information: the liquid medicine pool capacity is 6m, the flow rate of the chemical adding machine and the water purifier per hour is 6L/hour (the flow rate of the chemical adding machine and the water purifier is 100 ML/min), and the concentration value of the stock solution (weak base oil removal liquid) of the chemical adding machine and the water purifier is 700.
Obtaining that the position number is 01, the process name is weak base degreasing 1, and a stock solution (weak base degreasing liquid) with a concentration value of 700 is required to be automatically added to a corresponding liquid medicine tank for 15 minutes, and the free alkalinity target range value can be 11-12, so that the automatic adjustment time T1 is 15 minutes;
combining work order production statistical information, the spraying line running speed, the number of work pieces processed per minute and the area of the work pieces in the following table, and obtaining the required time from a free alkalinity early warning value 9 to an alarm value 8 to be 60 minutes, thereby obtaining space capacity time T3;
on the basis of the known T1 and T3, since the exception handling time T2 is set between the auto-adjustment time T1 and the space capacity time T3, the exception handling time T2 can be obtained, and T2 generally takes the middle section of T1 to T3 or a time value twice as large as T1.
In embodiment 16, this embodiment is an embodiment of the process of obtaining the process name water washing 1 concerning the automatic adjustment time T1, the abnormality processing time T2, and the space capacity time T3 in step S4 of embodiment 7 with the position number 03.
According to the position number 03, the following data are given under the process name water wash 1:
1) Early warning and alarm range information: the early warning range of PH value is <6.2 or >7.8, and the warning (warning stop) range is <6 or >8;
2) Adjusting target range information: the PH value target range value of the corresponding medicine water tank (pure water tank) is 6.8-7.2;
3) Automatically adjusting parameter information: the liquid medicine pool capacity is 6m, the flow rate of the chemical adding machine and the water purifier is 14L/min, and the pH value of the stock solution (water) of the chemical adding machine and the water purifier is 7.
The position number is 03, the process name is water washing 1, and stock solution (water) with the PH value of 7 is automatically added into a corresponding liquid medicine tank for 7 minutes to reach the PH value of 6.8-7.2, so that the automatic adjusting time T1 is 7 minutes;
combining work order production statistical information, the spraying line running speed of the following table, the number of work pieces processed per minute and the area of the work pieces to obtain the required time from the PH early warning value of water washing to the warning value of 6.2 to 28 minutes, thereby obtaining the space capacity time T3;
on the basis of the known T1 and T3, since the exception handling time T2 is set between the auto-adjustment time T1 and the space capacity time T3, the exception handling time T2 can be obtained, and T2 generally takes the middle section of T1 to T3 or a time value twice as large as T1.
In embodiment 17, this embodiment is an embodiment of the process of obtaining the auto-adjustment time T1, the abnormality processing time T2, and the space capacity time T3 for the process name of bake 1 at the position number 10 in step S4 of embodiment 7.
According to the position number 10, the following data for process name bake 1:
1) Early warning and alarm range information: the early warning range of the temperature of the baking furnace is <125 or >148 ℃, and the warning (line stopping warning) range is <120 or >151 ℃;
2) Adjusting target range information: the temperature target range value of the corresponding baking furnace is 135-140 ℃;
3) Combining the space capacity time T3;
the position number is 10, the process name is baking 1, the burner needs to automatically apply heating to the corresponding baking oven for 5 minutes, so that the temperature of the corresponding baking oven reaches 135-140 ℃, and the automatic adjustment time T1 is 5 minutes;
combining the work order production statistical information, and combining the operating speed of the spraying line, the number of processing work pieces per minute, the area of the work pieces, the power of the burner and the capacity of the baking oven to obtain the time required from the temperature early-warning value of the baking oven to the alarm value of 120 ℃ to be 20 minutes, thereby obtaining the space capacity time T3;
on the basis of the known T1 and T3, since the exception handling time T2 is set between the auto-adjustment time T1 and the space capacity time T3, the exception handling time T2 can be obtained, and T2 generally takes the middle section of T1 to T3 or a time value twice as large as T1.
In the above embodiments 15 to 17, there is a very specific case where the transmission chain is abnormal, such as the work order production statistics, and the stock solution consumption is abnormal, and the capacity time T3 from the baking furnace temperature early warning value of 125 degrees to the alarm value of 120 degrees is possibly smaller than the automatic adjustment time T1, and once this occurs, the stop line alarm processing is performed.
In embodiments 1 to 17 of the present invention, the on-site process parameter is adjusted by reaching the lower limit of the early warning value of the early warning and alarm range information, which is an additive adjustment based on the consumption of raw materials, and in the specific implementation process, the situation that the on-site process parameter reaches the upper limit of the early warning value also occurs, and when the situation occurs, the on-site process parameter can be adjusted by dilution or subtraction according to the technical scheme in the embodiment of the present invention, which is not repeated herein.
Claims (9)
1. The utility model provides a can early warn and adjust in order to prevent panel beating spraying line stop panel beating spraying system, its characterized in that includes MES server, master control system, more than one medicine water pond, bake out furnace and more than one spraying line, spraying line is equipped with the drive chain, and the drive chain is hung and is loaded with more than one work piece; the liquid medicine tank at least comprises one of a weak base oil removal tank, a phosphating tank and a water washing tank; the liquid medicine tank is connected with a medicine adding machine or a water purifier, and the baking furnace provides heat for the liquid medicine tank by the burner;
The main control system comprises an acquisition subsystem, a control subsystem, a display subsystem and an alarm subsystem which are interacted with the main control system data;
the acquisition subsystem is connected with the MES server through an MES network interface, and is also connected with a code reader, a workpiece counter and a detection sensor, wherein the detection sensor is used for acquiring field process parameters in real time;
the display subsystem is connected with a display and/or a sound box;
the alarm subsystem is provided with an audible and visual alarm device which is connected with the display subsystem and presents alarm information from a display and/or sound;
the control subsystem is connected with a PLC stop line control module, and the PLC stop line control module drives the transmission chain to run; the control subsystem controls the medicine adding or water adding of the medicine water tank, controls the temperature of the baking furnace, and controls the medicine water or water in the medicine water tank to spray on a workpiece through a spray head; the control subsystem is also connected with a power supply module and a clock module;
in the process of spraying the workpiece by the metal plate spraying system, the main control system acquires the on-site process parameters in real time through the detection sensor, and when the on-site process parameters reach the early warning condition, the on-site process parameters are regulated so as to prevent the metal plate spraying line from stopping; the on-site process parameters at least comprise one of the parameters of a free alkalinity of the weak base oil removal tank, a water washing PH value of the water washing tank, a phosphating PH value of the phosphating tank, conductivity of the water washing tank, phosphating acidity of the phosphating tank and a temperature parameter of the baking furnace;
In the process of spraying the workpiece by the metal plate spraying system, the on-site technological parameters are adjusted by adopting the following steps:
s1, a code reader scans or a line-following person inputs a work order bar code, and the work order bar code is uploaded to an MES server through a main control system and an MES network interface to match work order information of the corresponding work order bar code, and the work order information is fed back to the main control system;
the work order information at least comprises one of spray line numbers, material types, total number of workpieces and running speed of a chain;
s2, automatically adding the work order information to work order production statistical information, wherein the work order production statistical information at least comprises one of spray line numbers, work order numbers, material types, total number of workpieces, running speed of a chain, start spray time, number of workpieces hung, stop line state and spray state;
s3, the master control system invokes an MES server through an MES network interface according to the material type corresponding to the work order number to obtain early warning and alarm range information, and feeds the early warning and alarm range information back to the master control system and updates the early warning and alarm range information; the early warning and alarming range information at least comprises an early warning value and an alarming value of one of free alkalinity, PH value, total acidity, conductivity and temperature corresponding to each position number and process name;
Meanwhile, the MES server obtains adjustment target range information according to the material types of the early warning and alarm range information, wherein the adjustment target range information comprises the following components:
each position number, each process name, the corresponding free alkalinity of each chemical adding machine, the PH value of phosphating and one of the target range values of total acidity of phosphating,
each position number, each process name, the corresponding water washing PH value of each water purifier and one target range value of water washing conductivity,
each position number, each process name, and a temperature target range value corresponding to each burner;
s4, according to the information of the early warning and alarming range, the position number and the process name of the information of the adjusting target range, combining the capacity of a liquid medicine tank, the flow rate of each minute of the chemical adding machine and the water purifying machine, the concentration values of the stock solutions of the chemical adding machine and the water purifying machine and the power of a burner,
obtaining automatic adjustment time T1, exception handling time T2 and space capacity time T3;
forming automatic adjustment parameter information by the position number, the process name, the liquid medicine tank capacity, the flow of the chemical adding machine and the water purifier per minute, the raw liquid concentration values of the chemical adding machine and the water purifier, the power of the combustion machine, the automatic adjustment time T1, the abnormal processing time T2 and the space capacity time T3, and feeding back the automatic adjustment parameter information to a main control system;
S5, the main control system collects field process parameters in real time through the detection sensor;
s6, when the on-site process parameters reach the lower limit of the early warning value of the early warning and warning range information, the on-site process parameters are adjusted according to the automatic adjustment parameter information;
judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the automatic adjustment time T1, if so, ending the adjustment of the on-site process parameters in advance; if the number of the times of the operation is not the same,
the main control system displays abnormal information to remind a line following person of intervention abnormal treatment; the abnormal information at least comprises one of abnormal flow rate of the chemical adding machine per minute, abnormal flow rate of the water purifier per minute, abnormal concentration of stock solution of the chemical adding machine, abnormal concentration of stock solution of the water purifier and abnormal power of the combustion machine;
judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the exception processing time T2, if so, stopping adjusting the on-site process parameters; if the number of the times of the operation is not the same,
the line following personnel continue to perform exception processing within the space capacity time T3, if the process parameters reach the target range value of the adjustment target range information within the space capacity time T3, the on-site process parameter adjustment is finished, and otherwise, the line stopping alarm processing is performed.
2. The sheet metal spraying system capable of early warning and adjusting to prevent stop of a sheet metal spraying line according to claim 1, wherein the control subsystem comprises a CPU operation control unit, a data storage unit, a collection sensor data unit, a display spraying line information interface, a PLC interface for controlling the running speed and stop of the spraying line, an MES network interface, a code reader, a workpiece counter, a chemical feeder control module, a water purifier control module and a burner control module.
3. The sheet metal spraying system capable of early warning and adjusting to prevent stop of a sheet metal spraying line according to claim 1, wherein the code reader is an infrared code scanning device; and an acquisition subsystem: the infrared code scanning device is connected with RS232, and the workpiece counter and the detection sensor are connected with RS 485; and a control subsystem: and the RS485 is connected with a PLC stop line control module, a chemical feeder control module, a water purifier control module and a combustor control module.
4. The sheet metal spray system capable of early warning and adjusting to prevent stop of a sheet metal spray line according to claim 1, wherein the main control system at least adopts one of the following detection sensors to collect on-site process parameters in real time: a free alkalinity detection sensor, a water washing PH value detection sensor, a phosphorization total acidity detection sensor, a conductivity detection sensor and a temperature detection sensor;
Free alkalinity detection sensor: the system is used for detecting the free alkalinity of the weak base oil removal tank and uploading detection data to a main control system;
washing PH value detection sensor: the PH value detection device is used for detecting the PH value of the water washing tank and uploading detection data to the main control system;
a phosphorization PH value detection sensor: the PH value detection device is used for detecting the PH value of the phosphating pool and uploading detection data to the main control system;
total acidity detection sensor of phosphorization: the device is used for detecting the total acidity of the phosphating pool and uploading detection data to a main control system;
conductivity detection sensor: the system is used for detecting the conductivity of the water washing tank and uploading detection data to the main control system;
temperature detection sensor: for detecting the temperature of the oven and uploading the detected data to the host system.
5. The sheet metal spraying system capable of early warning and adjusting to prevent a sheet metal spraying line from stopping according to claim 1, wherein the main control system displays abnormal information to remind a line following person of intervening abnormal treatment by adopting at least one of the following detection instruments:
the flow detector of the dosing machine is arranged on an output pipeline of the dosing machine and is used for detecting the flow of the dosing machine per minute and uploading detection data to the main control system;
the water purifier flow detector is arranged on an output pipeline of the water purifier and is used for detecting the flow of the water purifier per minute and uploading detection data to the main control system;
The raw liquid concentration detection sensor of the dosing machine is arranged in the raw liquid container of the dosing machine and is used for detecting the raw liquid concentration of the dosing machine and uploading detection data to the main control system;
the water purifier stock solution concentration detection sensor is arranged in the water purifier stock solution container and is used for detecting the water purifier stock solution concentration and uploading detection data to the main control system.
6. The sheet metal spraying system capable of being adjusted in advance to prevent stop of a sheet metal spraying line according to claim 1,
the display subsystem is also used for displaying production information of each spraying line, and the production information at least comprises one of the number of the spraying line, the number of the produced work order, the work order information, the material type, the total number of the work pieces, the running speed of the spraying line, the starting spraying time, the number of the mounted work pieces, the line stopping state and the spraying state, and corresponding work order production statistical information;
the display subsystem is also used for displaying at least one of the following information of the spray line: the position number of each medicine water tank, the corresponding process name, the corresponding parameters of each medicine water, the conductivity parameters, the working state of each medicine adding machine, the temperature of each baking oven and the working state of each burner.
7. The sheet metal spray system capable of early warning and adjusting to prevent stop of a sheet metal spray line according to claim 1, wherein the sheet metal spray system further comprises the following steps in the process of spraying a workpiece:
More than one workpiece is mounted on a transmission chain of a spray line, and when the workpiece passes through a workpiece counter, a master control system automatically counts the workpiece and updates work order production statistical information;
according to the work order information, the work piece is sprayed by the spray heads for more than one liquid medicine tanks in sequence, and/or is dried by more than one baking furnaces.
8. The sheet metal spraying system capable of early warning and adjusting to prevent stop of a sheet metal spraying line according to claim 1, wherein in step S6,
the acquisition subsystem detects the on-site process parameters through the detection sensor, when the on-site process parameters reach the lower limit of the early warning value of the early warning and warning range information, early warning is made on a display and/or a sound of the display subsystem, and the on-site process parameters are adjusted according to the automatic adjustment parameter information;
judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the automatic adjustment time T1, if so, ending the adjustment of the on-site process parameters in advance; if the number of the times of the operation is not the same,
the main control system displays abnormal information on a display and/or sound of the display subsystem to remind a line following person of intervening abnormal treatment; the abnormal information at least comprises one of abnormal flow rate of the chemical adding machine per minute, abnormal flow rate of the water purifier per minute, abnormal concentration of stock solution of the chemical adding machine, abnormal concentration of stock solution of the water purifier and abnormal power of the combustion machine;
Judging whether the on-site process parameters reach the target range value of the adjustment target range information within the range of the exception processing time T2, if so, stopping adjusting the on-site process parameters; if the number of the times of the operation is not the same,
the line following personnel continue to perform exception handling within the space capacity time T3, if the process parameters reach the target range value of the adjustment target range information within the space capacity time T3, the on-site process parameter adjustment is finished, otherwise, the control subsystem sends a line stopping instruction to the PLC line stopping control module, the transmission chain stops working, and the main control system displays the stop alarm information on a display and/or a sound of the display subsystem.
9. The sheet metal spraying system capable of early warning and adjusting to prevent the stop of a sheet metal spraying line according to claim 1, wherein the space capacity time T3 is the duration from reaching the lower limit of an early warning value of early warning and warning range information to the lower limit of a warning value in a field normal operation process, and if the space capacity time T3 is exceeded and the process parameter does not reach the target range value of adjustment target range information, stopping the alarm processing; the abnormality processing time T2 is set between the automatic adjustment time T1 and the space capacity time T3.
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