CN109738447B - Automatic deviation rectifying method and device for battery pole piece protective adhesive - Google Patents
Automatic deviation rectifying method and device for battery pole piece protective adhesive Download PDFInfo
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- CN109738447B CN109738447B CN201811533582.4A CN201811533582A CN109738447B CN 109738447 B CN109738447 B CN 109738447B CN 201811533582 A CN201811533582 A CN 201811533582A CN 109738447 B CN109738447 B CN 109738447B
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Abstract
The invention belongs to the technical field of battery production, and particularly relates to an automatic deviation rectifying method for a battery pole piece protective adhesive, which comprises the following steps: step one, setting acquisition items and corresponding standard parameters according to battery process requirements; secondly, before the pole piece is wound, image acquisition is carried out on the pole piece to be detected; and step three, acquiring position parameters of the protective adhesive according to the image of the pole piece to be detected, analyzing the position parameters, judging whether the protective adhesive deviates according to an analysis result, and adjusting the protective adhesive of other pole pieces to be attached if the protective adhesive deviates. The invention can quickly judge whether the protective adhesive on the pole piece is deviated or not, is beneficial to improving the working efficiency, quickly adjusts the pole piece which is not pasted with the adhesive, is beneficial to optimizing the production process, improves the yield of the battery and further reduces the production cost. In addition, the invention also discloses an automatic deviation rectifying device for the battery pole piece protective adhesive.
Description
Technical Field
The invention belongs to the technical field of battery production, and particularly relates to an automatic deviation rectifying method and device for a battery pole piece protective adhesive.
Background
Nowadays, as a novel secondary battery, the lithium ion battery has the advantages of high energy density and power density, high working voltage, light weight, small volume, long cycle life, good safety, environmental protection and the like, and has wide application prospects in the aspects of portable electric appliances, electric tools, large-scale energy storage, electric traffic power supplies and the like. Before the battery pole piece is wound, the adhesive paper needs to be pasted and the pole lugs need to be welded, and the quality of a battery product can be directly influenced if the arrangement positions of the adhesive paper and the pole lugs are correct. Therefore, it is necessary to detect the positions of the tab and the tab on the battery tab. Today, a CCD detection system is an important device for detecting whether a battery pole piece passes or not. The CCD detector collects image information of the battery pole piece and feeds the information back to the processor, and whether the battery pole piece passes or not is automatically identified.
Among them, chinese patent document discloses a detection device for testing whether a battery protection tape has a tape (publication number: CN 104407303 a), comprising: base plate, support, setscrew, roller support, mercury slider and stainless steel running roller, there are 4 supports on the base plate, the roller support passes through setscrew to be fixed in corresponding support one side, the stainless steel running roller passes through the roller to be fixed in the roller support that corresponds, and 2 supports have stainless steel running roller one side to have stainless steel running roller one side and 2 supports in addition to have stainless steel running roller one side opposite direction in 4 supports, 4 crisscross settings of support, the inslot of roller support top has mercury slider, there is the wire roller support upper end. The scheme can detect the battery pole piece rapidly to a certain extent, but the scheme has at least the following defects: firstly, the integral bonding condition of the protective adhesive cannot be accurately judged, and visual inspection is still required, so that the working efficiency is low, and the cost is high; secondly, the rubberizing effect can not be standardized, and the process of rubberizing can not be monitored in real time.
Disclosure of Invention
One of the objects of the present invention is: aiming at the defects of the prior art, the automatic deviation rectifying method for the battery pole piece protective adhesive is provided, whether the protective adhesive on the pole piece deviates or not can be judged quickly, the work efficiency is improved, the pole piece which is not pasted with the adhesive is adjusted quickly, the production process is optimized, the yield of the battery is improved, and the production cost is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic deviation rectifying method for battery pole piece protective glue comprises the following steps:
the method comprises the following steps: setting acquisition items and corresponding standard parameters according to the battery process requirements;
step two: before the pole piece is wound, image acquisition is carried out on the pole piece to be detected;
step three: according to the image of the pole piece to be detected, collecting position parameters of protective glue and analyzing the position parameters, then judging whether the protective glue deviates according to an analysis result, and if the protective glue deviates, adjusting the protective glue of other pole pieces to be pasted.
It should also be noted that: in the deviation rectifying method, in the first step, because the types of batteries are more, and different types of batteries adopt different ways of sticking protective glue, the acquisition items and corresponding standard parameters are changed accordingly, and a user needs to set the acquisition items and the corresponding standard parameters according to the actual size of the battery, the circuit design and the area of a pole piece coating area; in the second step, before the battery pole piece is wound, protective glue needs to be pasted and a pole lug needs to be welded, whether the positions of the protective glue and the pole lug are correct or not can directly influence the quality of a battery product, in the traditional method, visual inspection needs to be adopted, so that the working efficiency is low, the cost is high, and because the precision of human eyes is far smaller than that of a picture, the positions of the protective glue and the pole lug are recorded in a photographing mode, so that the precision of detecting the positions of the protective glue and the pole lug is improved, and a user can conveniently monitor or recheck the battery pole piece in real time; in the third step, because the protection glue is pasted in many places on the pole piece, and position parameter probably has the error, so measure many times through the different positions to battery pole piece image, can obtain multiunit position parameter, can carry out the analysis to multiunit position parameter this moment, whether the automatic identification protection glue of being convenient for takes place the skew, if the protection glue takes place the skew, can adjust fast to improve other yields of treating the pole piece.
As an improvement of the automatic deviation rectifying method for the battery pole piece protective adhesive, in the third step, the method for analyzing the position parameters comprises the following steps:
s1, respectively calculating the average value, the standard value, the maximum value and the minimum value of the position parameters;
and S2, summarizing the position parameters and drawing an SPC control chart.
In the analysis method, in step S1, the average value is calculated to determine the overall position of the protective adhesive, calculate the maximum value and the minimum value, and quickly identify whether the protective adhesive is within the range of the standard parameters, and meanwhile, the standard value is increased, so that a user can conveniently reach the trend of the protective adhesive in time; in step S2, the SPC control chart is a scientifically designed chart for measuring and recording the process quality to perform control management, which is advantageous for controlling the quality of the battery, and includes three lines: when the position parameter exceeds the upper control limit or the lower control limit, a user can directly know the situation of the protective adhesive offset from the SPC control chart, and the SPC control chart can be effectively monitored through an operating system.
As an improvement of the automatic deviation rectifying method for the battery pole piece protective adhesive, in the third step, the method for judging the deviation of the protective adhesive comprises the following steps:
if the maximum value or the minimum value exceeds the standard parameter, the protective glue shifts;
and if the average value exceeds the standard parameter, the protective adhesive deviates.
As an improvement of the automatic deviation rectifying method for the battery pole piece protective adhesive, in step three, the method for adjusting the protective adhesive comprises the following steps:
if the deviation of the protective adhesive is detected, discharging the pole piece to be detected, readjusting the position of the protective adhesive of the pole piece to be attached to enable the position parameter to approach the standard parameter, and readjusting the position of the protective adhesive of the pole piece to be attached according to the SPC control chart;
and if the protective glue of the continuous multiple pole pieces to be detected deviates, stopping laminating the protective glue, and resetting relevant parameters of the pelleter or the rubberizing sucker.
In the adjusting method, when the pole piece to be detected detects the deviation of the protective adhesive, the unqualified pole piece is separated from the winding process, so that the resource waste caused by the continuous winding of the unqualified pole piece is prevented; in order to prevent the same offset of the subsequent pole pieces to be pasted, the average value of the position parameters can be enabled to tend to the standard parameters through fine adjustment, and meanwhile, an alarm mechanism of an SPC control chart can be adopted, namely, alarm is carried out when the average value exceeds the upper control limit or the lower control limit of the SPC control chart, so that the real-time monitoring of the correction path of the protective adhesive is facilitated, and the adjustment speed is improved; in order to prevent the deviation of the battery from being still unable to be corrected by multiple times of automatic adjustment, a gluing protection glue stopping mechanism is arranged, and at the moment, a user can reset relevant parameters of a pelleter or a gluing sucker, so that faults are eliminated, and the phenomenon that the yield of the battery is reduced due to large-scale protection glue deviation is prevented, and the production cost is increased.
The second purpose of the present invention is to provide a device for implementing the automatic deviation rectifying method for the battery pole piece protective glue, which comprises:
the image sensor is used for photographing the pole piece to be detected and acquiring the position parameters of the protective adhesive;
and the micro control module is used for receiving the position parameters, analyzing the position parameters, judging whether the protective glue deviates or not, and adjusting the position of the protective glue of the pole piece to be pasted.
As an improvement of the automatic deviation rectifying device for the battery pole piece protective adhesive, the image sensor is arranged above the sheet making machine.
As an improvement of the automatic deviation rectifying device for the battery pole piece protective adhesive, the image sensor is in communication connection with the micro control module.
As an improvement of the automatic deviation rectifying device for the battery pole piece protective adhesive, the image sensor is a CCD digital photoelectric sensor and a CMOS digital photoelectric sensor.
As an improvement of the automatic deviation rectifying device for the battery pole piece protective adhesive, the micro-control module is one of an AVR single chip microcomputer, a 51 single chip microcomputer and a PIC single chip microcomputer.
The beneficial effect of the invention is that the invention comprises the following steps: step one, setting acquisition items and corresponding standard parameters according to battery process requirements; secondly, before the pole piece is wound, image acquisition is carried out on the pole piece to be detected; and step three, acquiring position parameters of the protective adhesive according to the image of the pole piece to be detected, analyzing the position parameters, judging whether the protective adhesive deviates according to an analysis result, and adjusting the protective adhesive of other pole pieces to be attached if the protective adhesive deviates. In the deviation rectifying method, in the first step, because the types of batteries are more, and different types of batteries adopt different ways of sticking protective glue, the acquisition items and corresponding standard parameters are changed accordingly, and a user needs to set the acquisition items and the corresponding standard parameters according to the actual size of the battery, the circuit design and the area of a pole piece coating area; in the second step, before the battery pole piece is wound, protective glue needs to be pasted and a pole lug needs to be welded, whether the positions of the protective glue and the pole lug are correct or not can directly influence the quality of a battery product, in the traditional method, visual inspection needs to be adopted, so that the working efficiency is low, the cost is high, and because the precision of human eyes is far smaller than that of a picture, the positions of the protective glue and the pole lug are recorded in a photographing mode, so that the precision of detecting the positions of the protective glue and the pole lug is improved, and a user can conveniently monitor or recheck the battery pole piece in real time; in the third step, because the protection glue is pasted in many places on the pole piece, and position parameter probably has the error, so measure many times through the different positions to battery pole piece image, can obtain multiunit position parameter, can carry out the analysis to multiunit position parameter this moment, whether the automatic identification protection glue of being convenient for takes place the skew, if the protection glue takes place the skew, can adjust fast to improve other yields of treating the pole piece. The invention can quickly judge whether the protective adhesive on the pole piece is deviated or not, is beneficial to improving the working efficiency, quickly adjusts the pole piece which is not pasted with the adhesive, is beneficial to optimizing the production process, improves the yield of the battery and further reduces the production cost.
Drawings
FIG. 1 is a flow chart of an automatic deviation rectifying method for a battery pole piece protective adhesive of the present invention.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal ", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention will be described in further detail below with reference to the accompanying drawings, but the present invention is not limited thereto.
Example 1
As shown in fig. 1, an automatic deviation rectifying method for battery pole piece protective glue comprises the following steps:
the method comprises the following steps: setting acquisition items and corresponding standard parameters according to the battery process requirements;
step two: before the pole piece is wound, image acquisition is carried out on the pole piece to be detected;
step three: according to the image of the pole piece to be detected, collecting position parameters of the protective adhesive and analyzing the position parameters, then judging whether the protective adhesive deviates according to an analysis result, and if the protective adhesive deviates, adjusting the protective adhesive of other pole pieces to be pasted.
It should also be noted that: in the deviation rectifying method, in the first step, because the types of batteries are more, and different types of batteries adopt different ways of sticking protective glue, the acquisition items and corresponding standard parameters are changed accordingly, and a user needs to set the acquisition items and the corresponding standard parameters according to the actual size of the battery, the circuit design and the area of a pole piece coating area; in the second step, before the battery pole piece is wound, protective glue needs to be pasted and a pole lug needs to be welded, whether the positions of the protective glue and the pole lug are correct or not can directly influence the quality of a battery product, in the traditional method, visual inspection needs to be adopted, so that the working efficiency is low, the cost is high, and because the precision of human eyes is far smaller than that of a picture, the positions of the protective glue and the pole lug are recorded in a photographing mode, so that the precision of detecting the positions of the protective glue and the pole lug is improved, and a user can conveniently monitor or recheck the battery pole piece in real time; in the third step, because the protection glue is pasted in many places on the pole piece, and position parameter probably has the error, so measure many times through the different positions to battery pole piece image, can obtain multiunit position parameter, can carry out the analysis to multiunit position parameter this moment, whether the automatic identification protection glue of being convenient for takes place the skew, if the protection glue takes place the skew, can adjust fast to improve other yields of treating the pole piece.
Preferably, in step three, the method for analyzing the position parameters includes the following steps:
s1, respectively calculating the average value, the standard value, the maximum value and the minimum value of the position parameters;
and S2, summarizing the position parameters and drawing an SPC control chart.
In the analysis method, in step S1, the average value is calculated to determine the overall position of the protective adhesive, calculate the maximum value and the minimum value, and quickly identify whether the protective adhesive is within the range of the standard parameters, and meanwhile, the standard value is increased, so that a user can conveniently reach the trend of the protective adhesive in time; in step S2, the SPC control chart is a scientifically designed chart for measuring and recording the process quality to perform control management, which is advantageous for controlling the quality of the battery, and includes three lines: when the position parameter exceeds the upper control limit or the lower control limit, a user can directly know the situation of the protective adhesive offset from the SPC control chart, and the SPC control chart can be effectively monitored through an operating system.
Preferably, in the third step, the method for judging the deviation of the protective adhesive includes:
if the maximum value or the minimum value exceeds the standard parameter, the protective adhesive deviates;
if the average value exceeds the standard parameter, the protective adhesive is deviated.
Preferably, in step three, the method for adjusting the protective adhesive comprises:
if the deviation of the protective adhesive is detected, discharging the pole piece to be detected, readjusting the protective adhesive position of the pole piece to be adhered to enable the position parameter to be close to the standard parameter, and readjusting the protective adhesive position of the pole piece to be adhered according to an SPC control chart;
if the protective glue of the continuous multiple pole pieces to be detected deviates, the gluing of the protective glue is stopped, and the relevant parameters of the pelleter or the gluing sucker are reset.
In the adjusting method, when the pole piece to be detected detects the deviation of the protective adhesive, the unqualified pole piece is separated from the winding process, so that the resource waste caused by the continuous winding of the unqualified pole piece is prevented; in order to prevent the same offset of the subsequent pole pieces to be pasted, the average value of the position parameters can be enabled to tend to the standard parameters through fine adjustment, and meanwhile, an alarm mechanism of an SPC control chart can be adopted, namely, alarm is carried out when the average value exceeds the upper control limit or the lower control limit of the SPC control chart, so that the real-time monitoring of the correction path of the protective adhesive is facilitated, and the adjustment speed is improved; in order to prevent the deviation of the battery from being still unable to be corrected by multiple times of automatic adjustment, a gluing protection glue stopping mechanism is arranged, and at the moment, a user can reset relevant parameters of a pelleter or a gluing sucker, so that faults are eliminated, and the phenomenon that the yield of the battery is reduced due to large-scale protection glue deviation is prevented, and the production cost is increased.
Example 2
As shown in fig. 1, a device for implementing the automatic deviation rectifying method for the battery pole piece protective adhesive includes:
the image sensor is used for acquiring images of the pole piece to be detected and acquiring position parameters of the protective adhesive;
and the micro control module is used for receiving the position parameters, analyzing the position parameters, judging whether the protective adhesive deviates or not and adjusting the position of the protective adhesive of the pole piece to be attached.
Preferably, the image sensor is disposed above the film maker. The battery pole piece collecting device is arranged above the sheet making machine, so that images can be conveniently collected on the battery pole piece in the transmission direction, meanwhile, the battery pole piece collecting device is fixed at the same position, errors of the collected images can be reduced, and the collection accuracy is improved.
Preferably, the image sensor is in communication connection with the micro control module.
Preferably, the image sensor is a CCD digital photosensor or a CMOS digital photosensor. CCD and CMOS sensors are two types of image sensors currently in common use, both of which convert images into digital data by photoelectric conversion using photodiodes, and the main difference is the manner of transferring digital data. The charge data of each pixel in each row in the CCD sensor is sequentially transmitted to the next pixel, is output from the bottommost part and is amplified and output by an amplifier at the edge of the sensor; in the CMOS sensor, each pixel is adjacent to an amplifier and an A/D conversion circuit, data are output in a memory circuit mode, and both the data and the data meet the requirement of information acquisition of a pole piece to be detected; wherein, the camera model of the CCD digital photoelectric sensor is Basler acA2440-20 gc.
Preferably, the micro control module is one of an AVR singlechip, a 51 singlechip and a PIC singlechip. Among AVR, 51 and PIC singlechips, the 51 singlechips are the most basic and easy to handle; the PIC singlechip is strong in industrial anti-interference performance and high in compatibility of various models; the AVR has high running speed; the AVR singlechip, the 51 singlechip and the PIC singlechip can meet the processing requirements.
Example 3
The difference from example 1 is: the battery of this embodiment is a 396074 battery, according to the battery technology requirement, such as: setting the acquisition items as the exposed size of the protective adhesive in the width direction of the pole piece and the distance from the protective adhesive to the edge of the coating area of the pole piece, wherein the corresponding standard parameters are 0.8mm and 24 mm;
it is found that the protective adhesive is exposed by 1.0mm at the left end of the pole piece, and the protective adhesive is exposed by 0.6mm at the right end of the pole piece. Because the standard parameter is 0.8mm, the requirement can be met only by moving the protective adhesive to the right end by 0.2 mm;
the distance from a set of protective glues to the edge of the coated area of the pole piece is collected for analysis, e.g.
24.14 24.13 24.13 24.07 24.12
24.19 24.13 24.16 24.20 24.14
The average value calculated is 24.14, the standard parameter is 24mm, and the camera scale factor is set to be 0.5. According to the adjustment value = (mean value-standard parameter) × proportionality coefficient =0.07mm, namely the protective gummed paper is close to the pole piece coating area by 0.07mm, the requirements can be met.
Variations and modifications to the above-described embodiments may also occur to those skilled in the art, which fall within the scope of the invention as disclosed and taught herein. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious improvement, replacement or modification made by those skilled in the art based on the present invention is within the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (7)
1. An automatic deviation rectifying method for battery pole piece protective glue is characterized by comprising the following steps:
the method comprises the following steps: setting acquisition items and corresponding standard parameters according to the battery process requirements;
step two: before the pole piece is wound, image acquisition is carried out on the pole piece to be detected, and the positions of the protective adhesive and the pole lug are recorded in a photographing mode;
step three: collecting position parameters of protective glue according to the image of the pole piece to be detected, analyzing the position parameters, judging whether the protective glue deviates according to an analysis result, and adjusting the protective glue of other pole pieces to be pasted if the protective glue deviates;
in step three, the method for analyzing the position parameters comprises the following steps:
s1, respectively calculating the average value, the standard value, the maximum value and the minimum value of the position parameters;
s2, summarizing the position parameters and drawing an SPC control chart;
if the deviation of the protective adhesive is detected, discharging the pole piece to be detected, readjusting the position of the protective adhesive of the pole piece to be attached to enable the position parameter to approach the standard parameter, and readjusting the position of the protective adhesive of the pole piece to be attached according to the SPC control chart; and if the protective glue of the continuous multiple pole pieces to be detected deviates, stopping laminating the protective glue, and resetting relevant parameters of the pelleter or the rubberizing sucker.
2. The automatic deviation rectifying method of the battery pole piece protective adhesive according to claim 1, characterized in that: in the third step, the method for judging the deviation of the protective adhesive comprises the following steps:
if the maximum value or the minimum value exceeds the standard parameter, the protective glue shifts;
and if the average value exceeds the standard parameter, the protective adhesive deviates.
3. The device for realizing the automatic deviation rectifying method of the battery pole piece protective adhesive according to any one of claims 1-2 is characterized by comprising the following steps:
the image sensor is used for photographing the pole piece to be detected and acquiring the position parameters of the protective adhesive;
and the micro control module is used for receiving the position parameters, analyzing the position parameters, judging whether the protective glue deviates or not, and adjusting the position of the protective glue of the pole piece to be pasted.
4. The apparatus of claim 3, wherein: the image sensor is arranged above the film making machine.
5. The apparatus of claim 3, wherein: the image sensor is in communication connection with the micro control module.
6. The apparatus of claim 3, wherein: the image sensor is a CCD digital photoelectric sensor and a CMOS digital photoelectric sensor.
7. The apparatus of claim 3, wherein: the micro-control module is one of an AVR singlechip, a 51 singlechip and a PIC singlechip.
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| CN112117431B (en) * | 2019-06-21 | 2021-12-03 | 无锡先导智能装备股份有限公司 | Deviation rectifying method and deviation rectifying system |
| CN111403679B (en) * | 2020-02-21 | 2022-01-18 | 广州超音速自动化科技股份有限公司 | Rubberizing intervention method and rubberizing mechanism with rubberizing intervention function |
| CN112249795B (en) * | 2020-10-19 | 2021-10-29 | 广东利元亨智能装备股份有限公司 | Real-time correction method and device for rubberizing process, electronic equipment and readable storage medium |
| CN217086648U (en) * | 2022-05-07 | 2022-07-29 | 宁德时代新能源科技股份有限公司 | Deviation correcting device and winding machine |
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| CN108847475A (en) * | 2018-09-04 | 2018-11-20 | 东莞兰宇智能装备有限公司 | A kind of lithium-ion battery pelleter that can detect label automatically |
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