CN115993104B - Method for positioning thickness measuring defect code spraying of new energy battery pole piece production line - Google Patents
Method for positioning thickness measuring defect code spraying of new energy battery pole piece production line Download PDFInfo
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- CN115993104B CN115993104B CN202310289634.2A CN202310289634A CN115993104B CN 115993104 B CN115993104 B CN 115993104B CN 202310289634 A CN202310289634 A CN 202310289634A CN 115993104 B CN115993104 B CN 115993104B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides a new energy battery pole piece production line thickness measurement defect code spraying positioning method, which is provided with a label device, wherein the label device is arranged at the downstream of a thickness meter and driven by a servo motor; the marking device and the thickness gauge are connected with the same longitudinal encoder and share a longitudinal encoding signal; and after the thickness gauge finishes each round of scanning, if the thickness exceeding defect is found, the thickness gauge sends marking information to the marking equipment once, the marking equipment moves to the transverse position of the thickness exceeding data in advance after receiving the marking information sent by the marking equipment, and maintains data communication with the longitudinal encoder, and marks when the thickness exceeding defect is counted. The invention can complete the positioning of the code spraying points of the thickness detection abnormal positions on the battery pole piece by scanning the thickness gauge, so that the code spraying positions are more accurate, the number of code spraying machines on a production line is reduced, the waste of the battery pole piece materials is reduced, the equipment cost is reduced, and the mark leakage rate of the thickness defect marks of the battery pole piece is reduced.
Description
Technical Field
The invention relates to a new energy battery pole piece production line thickness measurement defect code spraying positioning method.
Background
In two links of coating production and rolling production of the lithium battery pole pieces, a thickness meter is required to detect the thickness or the weight of the lithium battery pole pieces in real time (the required equipment is an existing surface density detector and a laser thickness meter, which are collectively called thickness meter), and the thickness meter detects that the thickness of the battery pole pieces exceeds the allowable range of the process in the continuous scanning operation detection process of the battery pole pieces, marks are required to be made at positions of the battery pole pieces, which are detected to exceed the limit, through an associated code spraying machine or a labeling machine, so that the battery pole pieces at the positions of the marks are removed in the subsequent working procedures of the battery pole pieces of the batch.
The thickness gauge is characterized in that a thickness gauge sensor scans on a battery pole piece in a reciprocating cycle scanning mode, a thickness gauge computer only gives thickness data of a scanning position after the scanning of a single scanning stroke of a probe is finished, alarm monitoring logic in a thickness gauge program judges whether overrun data exist in banner data or not, then a code spraying signal instruction is given, because of the installation design reason of field equipment, the installation position of the general thickness gauge is far away from the installation position of an ink jet printer or a labeling machine, the distance is usually 10 meters to 80 meters, even the production line distance is longer, the thickness gauge judges that the battery pole piece data is abnormal, and when the code spraying instruction is given, the battery pole piece already runs for a quite long section, so that the position of the thickness gauge marked by the ink jet printer is far away from the position of the battery pole piece actually detecting the thickness abnormality, the maximum marking deviation is about 15 meters according to the line speed of 120 meters/min and the scanning speed statistics of the meter, and the waste of raw materials is quite large. In addition, the current configuration of the code spraying machines on nearly all production lines is that a plurality of code spraying machines are arranged in parallel at a certain transverse position at the rear end of the thickness gauge so as to finish the code spraying marks at different transverse positions on the battery pole piece.
Disclosure of Invention
The invention aims to provide a mark positioning method for a code spraying or marking machine, which can finish the positioning of code spraying points of a thickness detection abnormal position on a battery pole piece scanned by a thickness meter, so that the code spraying position is more accurate, the number of the code spraying machines on a production line is reduced, the waste of battery pole piece materials is reduced, the equipment cost is reduced, and meanwhile, the mark leakage rate of the thickness defect mark of the battery pole piece is reduced. For this purpose, the invention adopts the following technical scheme:
a new energy battery pole piece production line thickness measurement defect code spraying positioning method is characterized in that a label device is configured, the label device is a code spraying machine or a labeling machine, the conveying direction of a battery pole piece is taken as a reference direction, the label device is arranged at the downstream of a thickness gauge and driven by a servo motor, and the label device can move along a direction parallel to the moving direction of the thickness gauge;
the marking device and the thickness gauge are connected with the same longitudinal encoder and share a longitudinal encoding signal;
after each round of scanning is finished, if the thickness gauge finds out the defect of exceeding the standard, the thickness gauge sends marking information to the marking equipment once, wherein the marking information comprises a transverse position X1 of thickness exceeding data, a transverse interval width l of the thickness exceeding data, the running direction of the marking equipment or the thickness gauge and a code spraying waiting delay N, and the delay is counted according to the longitudinal encoder;
the marking device runs to the transverse position X1 of the thickness overrun data in advance after receiving marking information sent by the marking device, and is in data communication with the longitudinal encoder, and marking is performed when the thickness overrun defect is counted.
On the basis of adopting the technical scheme, the invention can also adopt the following further technical schemes or use the further technical schemes in combination:
when a plurality of thickness overrun defects are found in the scanning of one wheel, the marking equipment moves to the transverse position corresponding to the first thickness overrun defect found by the wheel, and after the first thickness overrun defect arrives and is marked, the marking equipment moves according to the movement direction and the movement speed of the thickness gauge of the wheel, so that the rest thickness overrun defects are marked in sequence.
After the marking of the thickness overrun defect found in one round of scanning is completed, the marking equipment stops at the current position to wait for marking information sent next time by the thickness gauge, and moves according to the position information contained in the marking information.
The longitudinal encoder is a longitudinal encoder configured by the thickness gauge.
And the alignment zero position of the thickness gauge is the same as the alignment zero position of the code spraying machine or the labeling machine on a transverse coordinate.
In the forward scanning detection of the thickness gauge sensor, the waiting delay N of the marking equipment is as follows:
wherein X is 1 For the transverse position of the thickness overrun defect, T is the longitudinal distance between the thickness gauge and the marking equipment, V 1 For the running speed of the battery pole piece of the production line, V 2 For the running speed of the thickness gauge sensor, p is the resolution of the longitudinal encoder, and L is the whole stroke of each round of scanning of the thickness gauge sensor;
after the marking equipment receives the marking instruction, the marking equipment controller immediately starts counting the first longitudinal encoder according to the alarm serial number, and simultaneously the servo motor operates the marking equipment to the transverse position X 1 When the count of the longitudinal encoder reaches N, marking equipment immediately starts marking, the servo motor finishes marking after running along the forward direction width l, and meanwhile, the servo motor stops running and waits for the next code spraying instruction of the alarm serial number;
in the reverse scanning detection of the thickness gauge sensor, the waiting delay N of the marking equipment is as follows:
compared with the forward scanning detection method, the reverse scanning detection servo motor finishes code spraying after running along the reverse running width l, and the rest steps are consistent with the forward scanning detection method.
The method comprises servo alignment debugging, and comprises the following steps:
(1) Running a thickness gauge sensor to a certain position on a pole piece of a production line, and recording the current transverse position A of the thickness gauge sensor;
(2) A marking tool is used for tightly attaching the sensor shell at the center position of the side surface of the running direction of the sensor of the thickness gauge, and a striking mark is made on the pole piece of the production line;
(3) The production line pole piece is operated, the count of the longitudinal encoder is recorded and cleared, and then the longitudinal encoder is pulled to the mounting position of the rear end marking equipment, namely the mark is positioned at the same position with the marking equipment in the operation direction of the production line battery pole piece;
(4) A servo driving motor of the inching marking equipment is used for running a marking working head of the marking equipment to a marking position of the pole piece, enabling the marking working head to be aligned with the marking position, and recording the coding statistical data of the longitudinal coder again, namely, longitudinal coding data corresponding to the longitudinal distance T between the thickness gauge and the marking equipment;
(5) Recording the position B of the servo driving motor of the marking equipment and the transverse position A of the mark of the thickness gauge, subtracting the current transverse position A of the sensor of the thickness gauge from the position B of the servo driving motor of the marking equipment, and recording the obtained deviation as C;
(6) Correcting the zero position of the servo driving motor of the marking device according to the value C, so that after correction, the marking device runs to the marking device transverse position D at the marking position and is equal to A;
(7) And inputting longitudinal coded data corresponding to the longitudinal distance T between the thickness gauge and the marking equipment into a thickness gauge controller.
According to the method, the same longitudinal coding signal is associated with the thickness gauge and the code spraying machine, and according to the code spraying instruction and the code spraying delay calculation mode provided by the method, the dislocation deviation between the code spraying position and the actual thickness defect position can be reduced to the millimeter level, so that the accuracy of the code spraying position is greatly improved, the conditions of missing marks and wrong marks are avoided, and the effect of reducing the scrapping of the raw materials of the battery pole pieces of users is achieved. In addition, the method is different from the existing fixed configuration form of a plurality of code spraying machines, only one code spraying machine is needed by adopting the method, the effect of greatly reducing the equipment cost is achieved, the code spraying machine and the thickness gauge sensor can run in the same direction on the whole production line banner through the servo motor, the actual code spraying can completely cover the whole battery pole piece banner, the safety rate of a final battery finished product of a user is improved, and the control is simple.
Drawings
FIG. 1 is a schematic diagram of a system for carrying out the method of the present invention.
Fig. 2 is a workflow diagram of a method embodying the present invention.
FIG. 3 is a schematic diagram of the scan trajectory of the line thickness gauge and the configuration of the inkjet printer of the present invention. Wherein, A1, battery pole piece; b1, a code spraying machine; and C1, a guide rail for the transverse movement of the code spraying machine.
FIG. 4 is a schematic diagram of a positioning method according to the present invention. Wherein, D1, the running track of the thickness gauge sensor relative to the battery pole piece of the production line; e1, the running direction of the battery pole piece of the production line is V 1 The method comprises the steps of carrying out a first treatment on the surface of the F1, transverse position X of ink jet printer 2 The method comprises the steps of carrying out a first treatment on the surface of the G1, the speed of the running path of the thickness gauge sensor is V 2 The method comprises the steps of carrying out a first treatment on the surface of the H1, aligning 0 point of the thickness gauge and the code spraying machine driving module.
FIG. 5 is a schematic diagram showing the positioning of the defect code spraying in the forward line section of the scanner according to the positioning method of the present invention. I1, detecting the position of the thickness overrun on the pole piece when the thickness gauge sensor runs forward; j1, the first detected thickness overrun defect of the wheel is from being detected to the longitudinal distance that the wheel continues to run when the forward scanning of the thickness gauge is finished; k1, a running track of the thickness gauge, K2 is a scanning line and a scanning direction of the thickness gauge on a battery pole piece, wherein a solid line is a scanned scanning line, and a dotted line is a scanning line to be scanned; and L1, longitudinal distance between the ink jet printer and the thickness gauge.
FIG. 6 is a schematic diagram of the positioning method of the present invention for positioning the defect code spraying in the reverse line section of the scanner. Wherein, M1, when the thickness gauge sensor runs reversely, the position of the thickness overrun on the pole piece is detected first; p1, the first detected thickness overrun defect of the wheel is detected and the longitudinal distance of the wheel continues to run from the detection to the end of the reverse scanning of the wheel of the thickness gauge; q1, a running track of the thickness gauge, Q2 is a scanning line and a scanning direction of the thickness gauge on a battery pole piece, wherein a solid line is a scanned scanning line, and a dotted line is a scanning line to be scanned; r1, the longitudinal distance between the code spraying machine and the thickness gauge.
Detailed Description
As shown in fig. 1 and 3, the system for implementing the method of the present invention includes two devices, namely a thickness gauge device and a marking device (in this embodiment, a code spraying device), wherein the thickness gauge device includes a thickness gauge sensor and a thickness gauge controller; the ink jet printer device comprises an ink jet printer and an ink jet printer controller and is provided with a servo motor. The code spraying and positioning method for the thickness measurement defect of the battery pole piece production line is characterized in that a code spraying machine or a labeling machine which is driven by a servo motor to move back and forth on a transverse linear guide rail (perpendicular to the running direction of the battery pole piece) is arranged behind a station of a thickness meter of the production line (downstream in the running direction of the battery pole piece), the code spraying machine can move on the transverse guide rail under the driving of the servo motor, and the moving range covers the width of the whole battery pole piece. A longitudinal encoder is arranged in the direction of the product line, and is used for converting the distance of the product line into code counts (the code counts are in pulse units), signals are synchronously transmitted to a thickness gauge and a motor control system of the code spraying machine, the motor can be regarded as a part of the code spraying machine, and the control system is regarded as a part of the control system of the code spraying machine. The code spraying machine and the thickness gauge are connected with the same longitudinal encoder and share a longitudinal encoding signal; further, in the case of upgrading the production line, the longitudinal encoder may be a longitudinal encoder configured by the thickness gauge itself, and then is in communication connection with the motor control system of the code spraying machine.
And after each round of scanning is finished, if the thickness gauge finds out the defect that the thickness exceeds the standard, the thickness gauge sends marking information to the marking equipment once. In practice, it may only be when a thickness out-of-standard defect is found. And after the round of scanning is finished, marking information is sent, and a marking instruction can be sent to the standard equipment once no matter whether the thickness exceeding defect is found or not after each round of scanning is finished. The wheel refers to a one-way scan from the start to the end across the width of the battery pole piece. In the transmitted labeling instruction, only one position needs to be labeled according to the detected result, or a plurality of positions need to be labeled, and if a plurality of positions need to be labeled, the labeling instruction comprises transverse position data X1 of each thickness overrun defect and transverse interval width l of each thickness overrun defect.
After receiving a marking instruction sent by the marking equipment, the marking equipment runs to the transverse position X1 of the thickness overrun defect in advance and is in data communication with the longitudinal encoder, when the control system of the marking equipment reaches the thickness overrun defect, marking is carried out, and the accuracy level marking of the longitudinal encoder can be realized by only one marking equipment.
When one thickness overrun defect is found in one round of scanning, the marking equipment moves to a transverse position corresponding to the thickness overrun defect (corresponding to a first position) found by the round, after the first position thickness overrun defect arrives and marking is carried out, the marking equipment stops at the current position to wait for marking information sent by the thickness gauge next time, and presses down position information contained in the marking information to move.
When a plurality of thickness overrun defects are found in the scanning of one wheel, the marking equipment moves to the transverse position corresponding to the first thickness overrun defect found by the wheel, after the first thickness overrun defect arrives and marking is carried out, the marking equipment moves according to the movement direction and the movement speed of the thickness gauge of the wheel, and marks the rest thickness overrun defects in sequence, so that accurate marking can be obtained only by keeping the current speed without other control, and the whole scheme is more reliable.
As shown in fig. 2, in the running process of the thickness gauge, the sensor continuously scans, the upper computer of the thickness gauge judges the position of the thickness defect according to the thickness overrun alarm logic, the controller of the thickness gauge immediately sends a code spraying instruction signal to the controller of the code spraying machine, the code spraying instruction comprises all thickness defect information of the thickness gauge in a complete round of scanning travel (namely, one round of scanning from one side to the other side as shown by the arrow of the scanning line in fig. 3, the subsequent round is in the opposite direction, namely, one round of scanning from right to left), the thickness defect information comprises the instruction sequence number of the code spraying wheel, the position of the defect in the scanning travel of the code spraying wheel, the transverse width of each defect position and the code spraying delay time of the first thickness defect of the code spraying wheel are judged according to the thickness overrun alarm logic, the code spraying machine controller respectively counts the longitudinal encoders according to the sequence numbers of the received instructions, and after the code spraying delay time reaches, the servo motor of the code spraying machine starts to the initial thickness defect in the corresponding instruction sequence number, the servo motor of the code spraying machine starts to the corresponding to the running direction of the sensor of the thickness gauge, if the thickness of the thickness defect is stopped, the servo motor of the code spraying machine is stopped after the thickness of the thickness defect is stopped, and the servo motor is stopped, if the thickness of the thickness defect is stopped, and the thickness defect is completely stopped, and the thickness of the defect is detected.
As shown in fig. 3 and fig. 4, the zero position H1 of the thickness gauge and the inkjet printer in the transverse direction is coincident, which can greatly reduce the calculation amount of the displacement distance, and when the detection structure of one wheel has multiple overrun defects to be marked, the transverse running direction of the inkjet printer B1 after marking the first defect is the same as the scanning running direction of the sensor of the thickness gauge in the wheel, and the running direction of the sensor from the zero position to the end position is the forward direction (from left to right in fig. 5), otherwise, the running direction is the reverse direction. After each round of detection scanning of the thickness gauge is completed, the transverse detection data are refreshed at the same time when the running direction is switched, the whole scanning stroke of each round of scanning of a sensor of the thickness gauge is L, the transverse position data of the thickness overrun defect are X1, the longitudinal distance T between the thickness gauge and a code spraying machine is obtained through scanning of the thickness gauge, when the thickness overrun of a product is detected in the forward scanning process of the sensor of the thickness gauge, a code spraying instruction is given by a controller of the thickness gauge, the code spraying instruction comprises the transverse position data X1 of the thickness overrun defect, the transverse interval width L of the thickness overrun defect, the running direction of the code spraying machine and the code spraying waiting delay N (the delay counting mode is counted according to the longitudinal encoder, if the delay is 5000 pulses, the longitudinal encoder is required to be waited for running to 5000 pulses), and the alarm serial number k. According to the analysis of the actual situation, the code spraying positioning mode of the thickness measuring defect comprises two parts of contents.
One of which is shown in fig. 5: the transverse position of the thickness overrun defect in the forward scanning detection of the thickness gauge sensor is X 1 The waiting time delay of code spraying is N,
wherein X is 1 For the transverse position of the thickness overrun defect, T is the longitudinal distance between the thickness gauge and the marking equipment, V 1 For the running speed of the battery pole piece of the production line, V 2 For the running speed of the thickness gauge sensor, p is the resolution of the longitudinal encoder, and L is the whole stroke of each round of scanning of the thickness gauge sensor.
After the code spraying machine receives the code spraying instruction, the code spraying machine controller immediately starts counting the first longitudinal encoder according to the alarm serial number, and simultaneously the code spraying machine servo motor operates the code spraying machine to the transverse position X 1 When the count of the longitudinal encoder reaches N, the code spraying machine immediately starts to spray codes, the servo motor of the code spraying machine finishes spraying codes after running in the forward direction by the width l, and meanwhile, the servo motor of the code spraying machine stops running and waits for the code spraying instruction of the next alarm sequence number.
And two are shown in fig. 6: the thickness defect position in the reverse scanning detection of the thickness gauge sensor is X 1 The waiting time delay of code spraying is N,
after the code spraying machine receives the code spraying instruction, the code spraying machine controller immediately starts to start counting of the longitudinal encoder according to the alarm serial number, and simultaneously the servo motor of the code spraying machine operates the code spraying machine to the position X 1 When the count of the longitudinal encoder reaches N, the code spraying machine immediately starts to spray codes, the servo motor of the code spraying machine finishes spraying codes after the servo motor of the code spraying machine runs along the reverse running width l, and meanwhile, the servo motor of the code spraying machine stops running and waits for the code spraying instruction of the next alarm sequence number.
When the method is implemented, the installation of the thickness gauge and the code spraying machine system is finished on site, the installation directions of the code spraying machine and the thickness gauge are required to be kept consistent, namely, the forward running directions of the two are the same, the signals of the longitudinal tape running encoder are connected into the thickness gauge and the code spraying machine control system, and the installation work is finished. A servo alignment debugging step:
(1) And running the thickness gauge sensor to a certain position on the pole piece of the production line, and recording the current transverse position A of the thickness gauge sensor.
(2) And (3) using a Mark pen or other marking tools to cling to the sensor shell at the center of the side surface of the running direction of the thickness gauge sensor, and making striking marks on the production line pole pieces.
(3) And (3) operating the production line pole piece A1, simultaneously recording the zero clearing of the count of the longitudinal encoder, and then dragging to the installation position of the rear-end code spraying machine, namely, the mark is positioned at the same position with the code spraying machine in the operation direction (longitudinal direction) of the production line battery pole piece.
(4) And (3) operating the servo driving motor of the inching code spraying machine to the marking position of the pole piece by the code spraying head of the code spraying machine, enabling the code spraying head to be aligned with the marking position, and recording the coding statistical data of the longitudinal encoder again, namely, longitudinal coding data corresponding to the longitudinal distance T between the thickness gauge and marking equipment.
(5) And recording the position B of the servo motor of the code spraying machine, and making ase:Sub>A difference (B-A) with the transverse position A of the mark of the thickness gauge, wherein the obtained deviation is marked as C.
(6) And correcting the 0 bit of the servo motor of the ink-jet printer according to the C value, so that the ink-jet printer is operated to the transverse position D of the ink-jet printer at the marked position above the corrected position and is equal to A.
(7) And inputting longitudinal coded data corresponding to the longitudinal distance T between the thickness gauge and the marking equipment into a thickness gauge controller.
Thus, the servo alignment debugging of the thickness gauge on the production line and the code spraying machine is completed.
After installation and debugging are completed, relevant actual work can be carried out, and the following is exemplified by the most complex field situation:
when the production line is started and the production line is started, the thickness gauge (sensor) continuously and circularly operates, at any time, the thickness gauge detects that three areas in the transverse thickness data of a round of forward travel (scanning from left to right is shown in fig. 5), the thickness data of the transverse thickness data of the round of forward travel is out of limit, the positions of the out-of-limit areas are respectively 40mm-180mm,340mm-560mm,600mm-820mm, the thickness gauge controller immediately sends a code spraying instruction to the code spraying machine controller after calculating the transverse thickness data, the code spraying instruction content is decoded and is ' alarm number 1, code spraying forward travel, first code spraying delay N1, the total comprises 3 areas out-of-limit, the width of the 1 st area is out of limit of 140mm, the width of the 2 nd area is out of limit of 340mm, the width of the 3 rd area is out of limit of 600mm, the longitudinal coding count is started immediately after the code spraying machine controller receives the code spraying instruction sent by the thickness gauge controller, meanwhile, the servo motor of the code spraying machine operates the code spraying machine to a position of 40mm for standing and waiting, and immediately after the sensor of the thickness gauge reversely operates (scanning from right to left is shown in fig. 6), the obtained banner data also has an area thickness overrun, the overrun area position is 700mm-900mm area, the thickness gauge controller immediately sends out code spraying instructions again, the instruction content is read and then is ' alarm number 2, code spraying reversely moves, the first section code spraying delay N2 totally comprises 1 area overrun, the 900mm width of the 1 st area starting point position is 200mm ', the longitudinal code counting of the alarm number 2 is immediately and synchronously started after the code spraying controller receives the code spraying instructions, when the code of the alarm number 1 counted by the code spraying controller reaches N1, the servo motor of the code spraying machine immediately starts to continuously operate, and meanwhile, the nozzle of the code spraying machine starts to spray code marks on the production line pole piece, the servo motor of the code spraying machine continuously runs to the position of 820mm all the time, the code spraying head of the code spraying machine stops spraying codes at the position of 180mm, the code spraying machine starts to spray codes again at the position of 340mm, the code spraying machine stops spraying codes at the position of 560mm, the code spraying machine starts to spray codes again at the position of 600mm, the code spraying command of the alarm command 1 is finished, the servo motor of the code spraying machine runs to the position of 900mm until the code of the alarm sequence number 2 counted by the code spraying controller reaches N2, the servo motor of the code spraying machine starts to reversely run, the code spraying machine nozzle starts to spray codes for the production line pole piece at the same time, the servo motor of the code spraying machine continuously runs to the position of 700mm all the time, the code spraying machine nozzle stops spraying codes, the servo motor of the code spraying machine stops waiting, and the next code spraying command is waited.
The method is the most complex code spraying condition on site, and the rolled battery pole piece can be cut off in a specific code spraying accuracy verification mode, the battery pole piece at the code spraying position is manually cut down, and weighing verification is performed by manual proofing.
The above embodiment is only one preferred technical solution of the present invention, and it should be understood by those skilled in the art that modifications and substitutions can be made to the technical solution or parameters in the embodiment without departing from the principle and essence of the present invention, and all the modifications and substitutions are covered in the protection scope of the present invention.
Claims (4)
1. A new energy battery pole piece production line thickness measurement defect code spraying positioning method is characterized in that a label injection device is configured in the method, the label injection device is a code spraying machine or a label sticking machine, the conveying direction of a battery pole piece is taken as a reference direction, the label injection device is arranged at the downstream of a thickness meter and driven by a servo motor to move along a direction parallel to the moving direction of the thickness meter;
the marking device and the thickness gauge are connected with the same longitudinal encoder and share a longitudinal encoding signal; the longitudinal encoder is a longitudinal encoder configured by the thickness gauge;
after each round of scanning is finished, if the thickness exceeding defect is found, the thickness gauge sends a marking instruction to the marking equipment once, wherein the marking instruction comprises a transverse position X1 of the thickness exceeding defect, a transverse interval width l of the thickness exceeding defect, a running direction of the marking equipment and a marking waiting delay N, and the delay is counted according to the longitudinal encoder;
the marking equipment moves to the transverse position X1 of the thickness overrun defect in advance after receiving a marking instruction sent by the thickness gauge, and is in data communication with the longitudinal encoder, and marking is carried out when the thickness overrun defect is counted;
when a plurality of thickness overrun defects are found in the scanning of one wheel, the marking equipment moves to the transverse position corresponding to the first thickness overrun defect found by the wheel, and after the first thickness overrun defect arrives and is marked, the marking equipment moves according to the movement direction and the movement speed of the thickness gauge of the wheel so as to mark the rest thickness overrun defects in sequence;
in the forward scanning detection of the thickness gauge sensor, the waiting delay N of the marking equipment is as follows:
wherein X is 1 Is of super thicknessThe transverse position of the defect is limited, T is the longitudinal distance between the thickness gauge and marking equipment, and V 1 For the running speed of the battery pole piece of the production line, V 2 For the running speed of the thickness gauge sensor, p is the resolution of the longitudinal encoder, and L is the whole stroke of each round of scanning of the thickness gauge sensor;
after the marking equipment receives the marking instruction, the marking equipment controller immediately starts counting the first longitudinal encoder according to the alarm serial number, and simultaneously the servo motor operates the marking equipment to the transverse position X 1 When the count of the longitudinal encoder reaches N, marking equipment immediately starts marking, the servo motor finishes marking after running the transverse interval width l in the forward direction, and meanwhile, the servo motor stops running and waits for the next code spraying instruction of the alarm sequence number;
in the reverse scanning detection of the thickness gauge sensor, the waiting delay N of the marking equipment is as follows:
after the marking equipment receives the marking instruction, the marking equipment controller immediately starts to start counting of the first longitudinal encoder according to the alarm serial number, and simultaneously the servo motor operates the marking equipment to the position X 1 When the count of the longitudinal encoder reaches N, marking equipment immediately starts marking, the servo motor finishes code spraying after running the transverse interval width l in the reverse direction, and meanwhile, the servo motor stops running and waits for the code spraying instruction of the next alarm sequence number.
2. The method for positioning the thickness measuring defect code spraying of the new energy battery pole piece production line according to claim 1, wherein after the thickness overrun defect found in one round of scanning is marked, the marking device stops at the current position to wait for marking information sent next time by the thickness measuring instrument, and presses the position information contained in the marking information to move.
3. The method for positioning the thickness measuring defect of the new energy battery pole piece production line by code spraying according to claim 1, wherein the alignment zero position of the thickness measuring instrument is the same as the alignment zero position of the code spraying machine or the labeling machine on a transverse coordinate.
4. The method for positioning the thickness measuring defect code spraying of the new energy battery pole piece production line according to claim 1, which is characterized by comprising the following steps:
(1) Running a thickness gauge sensor to a certain position on a pole piece of a production line, and recording the current transverse position A of the thickness gauge sensor;
(2) Using a marking tool to make a striking mark on the side center position of the pole piece of the production line in the running direction of the sensor of the thickness gauge and clinging to the sensor shell;
(3) The production line pole piece is operated, the count of the longitudinal encoder is recorded and cleared, and then the longitudinal encoder is pulled to the mounting position of the rear end marking equipment, namely the mark is positioned at the same position with the marking equipment in the operation direction of the production line battery pole piece;
(4) A servo driving motor of the inching marking equipment is used for running a marking working head of the marking equipment to a marking position of the pole piece, enabling the marking working head to be aligned with the marking position, and recording coding statistical data T of the longitudinal encoder again, namely, coding numbers corresponding to the longitudinal distance between the marking working head and a sensor of the thickness gauge;
(5) Recording the position B of ase:Sub>A servo driving motor of marking equipment, and making ase:Sub>A difference (B-A) with the transverse position A of the mark of the thickness gauge, wherein the obtained deviation is marked as C;
(6) Correcting the zero position of the servo driving motor of the marking device according to the value C, so that after correction, the marking device runs to the marking device transverse position D at the marking position and is equal to A;
(7) And inputting longitudinal coded data corresponding to the longitudinal distance T between the thickness gauge and the marking equipment into a thickness gauge controller.
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