CN102319654B - Dynamic picture monitoring control system of coating machine - Google Patents

Abstract

The invention discloses a dynamic picture monitoring control system of a coating machine, which comprises a coating machine unreeling mechanism, a coating machine oven, a coating machine traction mechanism, a coating machine reeling mechanism, a coating machine control mechanism, an online length measuring laser sensor, an online thickness measuring beta-ray sensor, a coating machine running state dynamic display industrial personal computer, a coating thickness dynamic display industrial personal computer and a coating length dynamic display industrial personal computer which are sequentially arranged in a coating process, wherein the online length measuring laser sensor and the online thickness measuring beta-ray sensor are respectively and electrically connected with the coating machine control mechanism, and the coating machine control mechanism is respectively and electrically connected with the coating machine running state dynamic display industrial personal computer, the coating thickness dynamic display industrial personal computer and the coating length dynamic display industrial personal computer. The invention monitors the coating process in real time through various sensors, and forms dynamic timely pictures by using the industrial personal computer, and operators can predict possible faults of the equipment after observing the dynamic timely pictures.

Description

Coating machine dynamic picture monitoring and control system

technical field

The invention relates to the field of manufacturing equipment, in particular to a coating machine monitoring and control system.

Background technique

Coating is an indispensable process in the production process of lithium-ion batteries, and it is also a key process that directly affects various performances such as battery safety, capacity, and consistency. Coating is to apply the prepared paste-like viscous slurry evenly, continuously or intermittently on the substrate (aluminum foil or copper foil) to ensure the thickness consistency of each coating position and control the coating thickness at Within the tolerance range required by the process.

The coating technology at home and abroad is becoming more and more mature, and the coating precision is getting higher and higher. However, with the development of coating technology, there is still a blank in terms of online monitoring, feedback, and closed-loop control of coating product quality and coating machine operating status. At present, the monitoring of coating product quality relies on manual observation and measurement, and then adjusts the equipment accordingly according to the results; in terms of equipment operation status monitoring, although there are certain detection methods inside the PLC, it is impossible to form a dynamic and timely screen. As a result, the operator cannot predict the possible failure of the equipment by observing the dynamic and timely screen, and can only make up for it after the failure occurs. Such a method not only causes a waste of manpower, but also causes a large amount of waste of materials due to the lag of manual inspection and equipment failure, and also affects the production efficiency and product accuracy of the equipment.

The Chinese invention patent application number is: "200780020475.5", and the patent application document named: "Control of Coating Process" discloses a device, system and method for controlling the coating of samples. An exemplary system may have a manufacturing device for providing a sample having one or more sample characteristics associated with one or more coating characteristics. The exemplary system can have a sample sensor for determining the one or more sample characteristics, and have a manufacturing controller for controlling the manufacturing device and One or more characteristics of the sample provided by the manufacturing device are controlled. The exemplary system may also have a coating device for providing coating to said sample having said one or more coating characteristics; a coating sensor for determining said one or more coating characteristics; A coating controller for controlling the coating device and controlling the one or more characteristics of the coating provided by the coating device based on the determined one or more coating characteristics. The coating controller in this patent is only a simple monitoring of the coating characteristics, and cannot form a monitoring control system, and cannot form a dynamic and timely picture, so that the operator cannot predict the possible failure of the equipment by observing the dynamic and timely picture. It can only It is to make up for it after the failure occurs.

Contents of the invention

The technical problem mainly solved by the present invention is to provide a coating machine dynamic picture monitoring and control system, which can form a dynamic and timely picture, and the operator can predict the possible failure of the equipment after observing the dynamic and timely picture.

In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is to provide a coating machine dynamic picture monitoring control system, including a coating machine unwinding mechanism, a coating mechanism, and a coating machine oven arranged in sequence during the coating process 1. Coating machine traction mechanism and coating machine winding mechanism, characterized in that: it also includes a coating machine control mechanism for monitoring and controlling the running state of the coating machine, the coating machine control mechanism and the unwinding mechanism, coating machine Cloth mechanism, coating machine oven, coating machine traction mechanism and coating machine winding mechanism are electrically connected; the system further includes an online length measuring laser sensor, an online thickness measuring β-ray sensor, and an industrial computer for dynamic display of coating machine operating status 1. An industrial computer for dynamic display of coating thickness and an industrial computer for dynamic display of coating length, the online length measurement laser sensor and the online thickness measurement β-ray sensor are respectively electrically connected to the coating machine control mechanism, and the coating machine control mechanism is respectively connected to the Coating machine running state dynamic display industrial computer, coating thickness dynamic display industrial computer and coating length dynamic display industrial computer electromechanical connection.

Wherein, the system also includes an unwinding monitoring CCD and an industrial computer for dynamic display of the unwinding state, the unwinding monitoring CCD is used for real-time monitoring of the unwinding mechanism of the coating machine, and the monitoring results are sent to the dynamic display of the unwinding state The processing conversion is completed in the industrial computer, and the dynamic image screen is displayed intuitively, and the real-time detection value is compared with the preset standard value. If the preset standard value is exceeded, an alarm signal output is generated.

Wherein, the system also includes a coating head monitoring CCD and a dynamic display industrial computer of the coating head running state, and the coating head monitoring CCD is used for real-time monitoring of the running state of the coating head, and the monitoring results are sent to the coating head. The running state of the cloth head is dynamically displayed. The processing conversion is completed in the industrial computer, which is displayed intuitively with a dynamic image screen, and the real-time detection value is compared with the preset standard value. If the preset standard value is exceeded, an alarm signal output is generated.

Wherein, the system also includes a coating product appearance monitoring CCD and a product appearance dynamic display industrial computer, and the coating product appearance monitoring CCD is used to monitor the coating product appearance in real time, and send the monitoring results to the product appearance dynamic display The processing conversion is completed in the industrial computer, and the dynamic image screen is displayed intuitively, and the real-time detection value is compared with the preset standard value. If the preset standard value is exceeded, an alarm signal output is generated.

Wherein, the system also includes a product drying effect monitoring CCD and a product drying effect dynamic display industrial computer, and the product drying effect monitoring CCD is used for real-time monitoring of the drying effect of the coated product, and the detection result is sent to The drying effect of the imported product is dynamically displayed in the industrial computer to complete the processing conversion, and the dynamic image screen is displayed intuitively, and the real-time detection value is compared with the preset standard value. If the preset standard value is exceeded, an alarm signal output is generated.

Wherein, the system also includes a traction roller exit monitoring CCD and a traction exit product dynamic display industrial computer, the traction roller exit monitoring CCD is used for real-time monitoring of the traction roller exit, and the detection results are sent to the traction exit product dynamic display industrial control The processing conversion is completed in the machine, and the dynamic image screen is displayed intuitively, and the real-time detection value is compared with the preset standard value. If the preset standard value is exceeded, an alarm signal output is generated.

Wherein, the system also includes a winding monitoring CCD and a dynamic display industrial computer for the winding state, and the winding monitoring CCD is used for real-time monitoring of the winding mechanism of the coating machine, and the monitoring results are sent to the dynamic display of the winding state The processing conversion is completed in the industrial computer, and the dynamic image screen is displayed intuitively, and the real-time detection value is compared with the preset standard value. If the preset standard value is exceeded, an alarm signal output is generated.

The beneficial effects of the present invention are: the coating controller which is different from the prior art only simply monitors the coating characteristics, cannot form a monitoring control system, and cannot form a dynamic and timely picture, resulting in the operator being unable to predict by observing the dynamic and timely picture. The possible failure of the equipment can only be made up for after the failure occurs. The present invention monitors the coating process in real time through a variety of sensors, and uses an industrial computer to form a dynamic and timely picture. After the operator observes the dynamic and timely picture, , which can predict the possible failure of the equipment.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of a coating machine dynamic picture monitoring and control system of the present invention.

In the figure, 01: coating machine unwinding mechanism; 02: unwinding monitoring CCD; 03: coating head monitoring CCD; 04: coating product appearance monitoring CCD; 05: online length measuring laser sensor; 06: coating mechanism; 07: coating machine oven; 08: coating machine control mechanism; 09: online thickness measurement β-ray sensor; 10: product drying effect monitoring CCD; 11: coating machine traction mechanism; 12: traction roller outlet monitoring CCD; 13 : Coating machine rewinding mechanism; 14: Industrial computer for dynamic display of winding status; 15: Industrial computer for dynamic display of traction export products; 16: Industrial computer for dynamic display of product drying effect; 17: Industrial computer for dynamic display of coating machine running status ;18: industrial computer for dynamic display of coating thickness; 19: industrial computer for dynamic display of coating length; 20: industrial computer for dynamic display of product appearance; 21: industrial computer for dynamic display of coating head running status; 22: industrial computer for dynamic display of unwinding status Machine; 23: Winding monitoring CCD.

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1, the coating machine dynamic picture monitoring control system of the embodiment of the present invention, comprises coating machine unwinding mechanism 01, coating mechanism 06, coating machine oven 07, coating machine traction arranged in sequence in coating process Mechanism 11 and coating machine rewinding mechanism 13 also include the coating machine control mechanism 08 for monitoring and controlling the coating machine operating state, and the coating machine control mechanism 08 is connected with unwinding mechanism, coating mechanism 06, coating machine The cloth machine oven 07, the coating machine traction mechanism 11 and the coating machine winding mechanism 13 are electrically connected; the system further includes an online length measuring laser sensor 05, an online thickness measuring β-ray sensor 09, and an industrial control system for dynamic display of the coating machine's operating status. Machine 17, coating thickness dynamic display industrial computer 18 and coating length dynamic display industrial computer 19, the online length measurement laser sensor 05 and the online thickness measurement β-ray sensor 09 are electrically connected to the coating machine control mechanism 08 respectively, and the The coating machine control mechanism 08 is electrically connected with the industrial computer 17 for dynamically displaying the running state of the coating machine, the industrial computer 18 for dynamically displaying the coating thickness and the industrial computer 19 for dynamically displaying the coating length.

Continuing to refer to Fig. 1, in one embodiment, the system also includes an unwinding monitoring CCD02 and an unwinding state dynamic display industrial computer 22, and the unwinding monitoring CCD02 is used for real-time monitoring of the coating machine unwinding mechanism 01, And the monitoring result is sent to the unwinding state dynamic display industrial computer 22 to complete the processing conversion, visually displayed with the dynamic image screen, and the real-time detection value is compared with the preset standard value, if it exceeds the preset standard value, an alarm signal output is generated .

Continue to refer to Fig. 1, in one embodiment, described system also comprises coating head monitoring CCD03 and coating head running state dynamic display industrial computer 21, and described coating head monitoring CCD03 is used for the running state of coating head Real-time monitoring, and the monitoring results are sent to the dynamic display of the coating head running state to complete the processing conversion in the industrial computer 21, which is visually displayed on the dynamic image screen, and the real-time detection value is compared with the preset standard value, if it exceeds the preset standard value An alarm signal output is generated.

Continue to refer to Fig. 1, in one embodiment, described system also comprises coating product appearance monitoring CCD04 and product appearance dynamic display industrial computer 20, described coating product appearance monitoring CCD04 is used for real-time monitoring to coating product appearance, And the monitoring results are sent to the product appearance dynamic display industrial computer 20 to complete the processing and conversion, and the dynamic image screen is visually displayed, and the real-time detection value is compared with the preset standard value. If the preset standard value is exceeded, an alarm signal is output.

Continue to refer to Fig. 1, in one embodiment, described system also comprises product drying effect monitoring CCD10 and product drying effect dynamic display industrial computer 16, described product drying effect monitoring CCD10 is used for the drying of coated product The effect is monitored in real time, and the detection result is sent to the industrial computer 16 for dynamic display of the drying effect of the product to complete the processing conversion, and the dynamic image screen is visually displayed, and the real-time detection value is compared with the preset standard value. If it exceeds the preset standard value will generate an alarm signal output.

Continue to refer to Fig. 1, in one embodiment, described system also comprises traction roll exit monitoring CCD12 and traction exit product dynamic display industrial computer 15, described traction roll exit monitoring CCD12 is used for carrying out real-time monitoring to traction roll exit, and will The detection results are sent to the traction export product dynamic display industrial computer 15 to complete the processing and conversion, and the dynamic image screen is visually displayed, and the real-time detection value is compared with the preset standard value. If the preset standard value is exceeded, an alarm signal is output.

Continue to refer to Fig. 1, in one embodiment, above-mentioned system also comprises rewinding monitoring CCD23 and rewinding state dynamic display industrial computer 14, and described rewinding monitoring CCD23 is used for real-time monitoring to coating machine rewinding mechanism 13, and The monitoring results are sent to the winding state dynamic display industrial computer 14 to complete the processing conversion, and the dynamic image screen is visually displayed, and the real-time detection value is compared with the preset standard value. If the preset standard value is exceeded, an alarm signal is output.

In the present invention, a reflective laser sensor is installed between the two passing rollers at the exit of the coating head, and when the laser sensor senses light changes, the precision encoder installed on the traction roller starts counting. Each sensing cycle of the laser sensor, the code generates a length count, that is, the actual measured length of the coating film length and interval. The PLC sends the measurement length signal to the host of the industrial computer, and the industrial computer converts it into a dynamic line graph and presents it on the display screen through microcomputer processing; at the same time, the industrial computer compares the measured data with the set coating film length and intermittent value, and according to The difference is sent to the PLC control system as a corresponding compensation signal, and the PLC will adjust the trigger frequency of the intermittent and coating film in a small amount by changing the intermittent control valve's intermittent and coating action time frequency, or changing the pulse number of the back roller moving motor, so that the coating The length dimension can realize closed-loop adjustment.

A β-ray perspective thickness measurement system is installed between the tail traction mechanism and the winding mechanism of the coating machine. Through the rapid movement of the β-ray sensor head in the lateral direction, the coating thickness is continuously sampled and transmitted to the PLC. Control System. The PLC sends the measured thickness signal to the host of the industrial computer, and the industrial computer converts it into a dynamic line graph and presents it on the display screen through microcomputer processing; at the same time, the industrial computer compares the measured data with the set coating thickness value, and makes corresponding adjustments according to the difference The compensation signal is sent to the PLC, so that the coating thickness can be adjusted in a closed loop.

Install CCD cameras in the parts of the coating equipment that need to be monitored, such as the unwinding part, the exit of the coating head, the exit of the oven, the exit of each traction roller, and the winding shaft. The unwinding part is mainly to monitor the quality of the foil and the effect of deviation correction; the CCD at the outlet of the coating head is used to monitor the appearance of the coating: whether there is exposed foil, pores, scratches, wavy edges, severe tailing, etc.; the CCD at the outlet of the oven is used to monitor The drying quality of the coating film, whether the drying effect is achieved, whether there are defects such as curling and cracking; each traction roller has a pressure roller, so it is necessary to monitor whether the foil is wrinkled; the position of the winding shaft is mainly to monitor the uniformity of the winding, Whether wrinkled, spiral. The CCD camera sends the picture signal captured by the industrial computer to the main computer, and the industrial computer directly presents the picture on the display screen through microcomputer processing; at the same time, the industrial computer compares the measured data with the set parameter value, and makes a corresponding alarm signal according to the difference .

In the present invention, the analog signal of each drive motor, encoder and sensor collected by PLC is input to the host computer of the industrial computer, and the industrial computer directly presents the picture on the display screen through microcomputer processing; at the same time, the industrial computer combines the measured data and the set parameter value Make comparisons and make corresponding alarm signals according to the differences. Such as coating tension, gap between knives, winding diameter, coating length, oven temperature, wind pressure and air volume, dynamic parameters of driving motors in various parts, etc.

The present invention has at least the following technical effects:

1. Use the laser sensor, precision encoder and industrial computer to detect the length and dimension error of the coated product online, display it as a dynamic line graph on the display screen, and feed back the signal to the coating machine control system for timely adjustment. The coating length error can be controlled within ±0.5mm, which is 3 times higher than the current ±1.5mm accuracy.

2. Use β-ray penetration technology and industrial computer to detect the thickness error of the coating product online, display it as a dynamic line graph on the display screen, and feed back the signal to the coating machine control system for timely adjustment. The coating thickness error can be controlled within 1%, which is 2.5 times higher than the current 2.5% accuracy.

3. Using CCD camera imaging technology and industrial computer to cooperate, monitor the appearance quality of coating products online, display dynamic images on the display screen intuitively, and compare and alarm according to preset standards. It can monitor the appearance of the product in a timely manner to detect problems such as exposed foil, wrinkled, uneven winding, and incomplete drying in time to prevent a large number of scrapped products.

4. Input the PLC analog signal to the industrial computer, and dynamically and timely display the change curve of each performance parameter of the coating machine on the display screen, and compare and alarm according to the preset standard. Such as coating tension, gap between knives, winding diameter, coating length, oven temperature, wind pressure and air volume, dynamic parameters of driving motors in various parts, etc. It can monitor the operation status of the equipment in good time, so as to predict the possible failure of the equipment, prevent and maintain it in advance, reduce the downtime of equipment due to failure, and improve the efficiency of equipment use.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.

Claims (7)

1. A coating machine dynamic picture monitoring control system, comprising a coating machine unwinding mechanism, a coating mechanism, a coating machine oven, a coating machine traction mechanism and a coating machine winding mechanism arranged in sequence in the coating process, It is characterized in that: it also includes a coating machine control mechanism for monitoring and controlling the operation state of the coating machine, the coating machine control mechanism and the unwinding mechanism, coating mechanism, coating machine oven, coating machine traction mechanism and Coating machine winding mechanism electrical connection; The system further includes an online length-measuring laser sensor, an online thickness-measuring β-ray sensor, an industrial computer for dynamic display of coating machine operating status, an industrial computer for dynamic display of coating thickness, and an industrial computer for dynamic display of coating length. The sensor and the on-line thickness measuring β-ray sensor are respectively electrically connected to the control mechanism of the coating machine, and the control mechanism of the coating machine is respectively connected to the industrial computer for dynamic display of the operating state of the coating machine, the industrial computer for dynamic display of coating thickness and the dynamic display of coating length Industrial control electromechanical connection; A reflective laser sensor is installed between the two passing rollers at the exit of the coating head. When the laser sensor senses a change in light, the precision encoder installed on the traction roller starts counting. Every sensing cycle of the laser sensor, the code generates a length Counting, that is, the actual measurement length of the length of the coating film and the interval, the PLC sends the measurement length signal to the host computer of the industrial computer, and the industrial computer converts it into a dynamic line graph and presents it on the display screen through microcomputer processing; at the same time, the industrial computer will follow the measured data Set the length of the coating film and the intermittent value for comparison, and send the corresponding compensation signal to the PLC control system according to the difference. The PLC will change the interval of the intermittent control valve, the time frequency of the coating film action, or change the pulse number of the back roller moving motor To micro-adjust the interval and trigger frequency of the coating film, so that the coating length can be adjusted in a closed loop; A β-ray perspective thickness measurement system is installed between the tail traction mechanism and the winding mechanism of the coating machine. Through the rapid movement of the β-ray sensor head in the lateral direction, the coating thickness is continuously sampled and transmitted to the PLC. Control system, PLC sends the measured thickness signal to the host of the industrial computer, and the industrial computer converts it into a dynamic line graph and presents it on the display screen through microcomputer processing; at the same time, the industrial computer compares the measured data with the set coating thickness value, and according to The difference is sent to the PLC as a corresponding compensation signal, so that the coating thickness can be adjusted in a closed loop. 2. The coating machine dynamic picture monitoring and control system according to claim 1, characterized in that: the system also includes an unwinding monitoring CCD and an unwinding state dynamic display industrial computer, and the unwinding monitoring CCD is used for coating The unwinding mechanism of the cloth machine conducts real-time monitoring, and sends the monitoring results to the unwinding state dynamic display industrial computer to complete the processing conversion, visually displays the dynamic image screen, and compares the real-time detection value with the preset standard value. If the standard value is set, an alarm signal output will be generated. 3. The coating machine dynamic picture monitoring control system according to claim 1, characterized in that: the system also includes a coating head monitoring CCD and a dynamic display industrial computer of the coating head running state, and the coating head monitoring CCD It is used to monitor the running state of the coating head in real time, and send the monitoring results to the industrial computer for dynamic display of the running state of the coating head to complete the processing conversion, visually display the dynamic image screen, and compare the real-time detection value with the preset standard value For comparison, if the preset standard value is exceeded, an alarm signal output will be generated. 4. The coating machine dynamic picture monitoring control system according to claim 1, characterized in that: the system also includes a coating product appearance monitoring CCD and a product appearance dynamic display industrial computer, and the coating product appearance monitoring CCD is used It is used to monitor the appearance of coated products in real time, and send the monitoring results to the industrial computer for dynamic display of product appearance to complete the processing conversion. If the standard value is set, an alarm signal output will be generated. 5. The coating machine dynamic picture monitoring control system according to claim 1, characterized in that: the system also includes a product drying effect monitoring CCD and a product drying effect dynamic display industrial computer, and the product drying effect monitoring CCD is used for real-time monitoring of the drying effect of coated products, and the detection results are sent to the industrial computer for dynamic display of product drying effect to complete the processing conversion, and the dynamic image screen is intuitively displayed, and the real-time detection value is compared with the preset standard Values are compared, and if the preset standard value is exceeded, an alarm signal output will be generated. 6. The coating machine dynamic picture monitoring control system according to claim 1, characterized in that: the system also includes a traction roll exit monitoring CCD and a traction exit product dynamic display industrial computer, and the traction roll exit monitoring CCD is used for Carry out real-time monitoring on the exit of the traction roller, and send the detection results to the dynamic display industrial computer of the traction exit product to complete the processing conversion, visually display the dynamic image screen, and compare the real-time detection value with the preset standard value, if it exceeds the preset The standard value generates an alarm signal output. 7. The coating machine dynamic picture monitoring control system according to claim 1, characterized in that: the system also includes a rewinding monitoring CCD and a rewinding state dynamic display industrial computer, and the rewinding monitoring CCD is used for the coating The winding mechanism of the cloth machine is monitored in real time, and the monitoring results are sent to the industrial computer for dynamic display of the winding state to complete the processing conversion, and the dynamic image screen is displayed intuitively, and the real-time detection value is compared with the preset standard value. If the standard value is set, an alarm signal output will be generated.

Images