Blue film attachment and positioning detection system suitable for processing thermal insulation sheet of power battery

Abstract

The present invention relates to the technical field of positioning and attachment detection. Disclosed is a blue film attachment and positioning detection system suitable for processing a thermal insulation sheet of a power battery, which system solves the technical problems in the prior art of it being impossible to perform positioning detection in a blue film feeding process and a thermal insulation sheet conveying process and it also being impossible to perform standard-meeting detection on a conveying operation before positioning detection. Specifically, after a detection platform has received a low-risk attachment signal, a film-feeding positioning detection unit performs risk early warning on a blue film in a blue film feeding process, performs blue film feeding when a low risk has been detected, and performs real-time positioning detection during film feeding; a material-feeding positioning detection unit performs positioning detection in a thermal insulation sheet conveying process, performs real-time positioning detection on a thermal insulation sheet after it is determined that positioning meets standards during the conveying of the thermal insulation sheet entering an attachment processing region; and after blue film positioning detection and thermal insulation sheet positioning detection have been completed, an attachment and positioning detection unit performs attachment detection on the blue film and the thermal insulation sheet.

Description

Blue film lamination positioning detection system suitable for power battery insulation sheet processing Technical Field

[0001] The present invention relates to the field of positioning and laminating detection technology, and in particular to a blue film laminating and positioning detection system suitable for processing power battery thermal insulation sheets. Background Art

[0002] A power battery is a power source that provides power for tools, mostly referring to batteries that power electric vehicles, electric trains, electric bicycles, and golf carts. It is mainly different from the starting battery used to start a car engine. Ceramic wool, also known as aluminum silicate wool, is a type of aluminum silicate wool and is widely used in ships, factories, building materials, petroleum, chemicals, etc. Ceramic wool, as a type of thermal insulation sheet, is bonded with a blue film during the actual processing process.

[0003] However, in the existing technology, when the blue film and the thermal insulation sheet are bonded together, firstly, the bonding environment analysis cannot be performed before bonding, resulting in low bonding accuracy. Secondly, the blue film feeding process and the thermal insulation sheet feeding process cannot be positioned and detected. At the same time, the conveying operation qualification test cannot be performed before the positioning test, resulting in reduced work efficiency of the bonding process. In addition, after ensuring that the film feeding and material feeding are qualified, the final bonding cannot be positioned and tested.

[0004] In view of the above technical defects, a solution is now proposed. Technical issues

[0005] The purpose of the present invention is to solve the above-mentioned problems and to propose a blue film lamination positioning detection system suitable for the processing of power battery insulation sheets. Technical Solutions

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The blue film lamination positioning detection system suitable for power battery thermal insulation sheet processing includes a detection platform, and the detection platform communication connections are:

[0008] The bonding environment detection unit detects the bonding processing environment of the blue film and the thermal insulation sheet, obtains the bonding environment detection coefficient of the bonding processing area during the bonding process, generates a high-risk bonding signal or a low-risk bonding signal based on the bonding environment detection coefficient comparison, and sends it to the detection platform; after the detection platform receives the low-risk bonding signal, the film feeding positioning detection unit issues a risk warning during the blue film feeding process, feeds the blue film when low risk is detected, and performs real-time positioning detection during film feeding; the feeding positioning detection unit performs positioning detection on the thermal insulation sheet during transportation, and performs real-time positioning detection on the thermal insulation sheet after determining that the positioning of the thermal insulation sheet entering the bonding processing area is qualified during transportation. After completing the blue film positioning detection and the thermal insulation sheet positioning detection, the bonding positioning detection unit performs bonding detection on the blue film and the thermal insulation sheet.

[0009] As a preferred embodiment of the present invention, the operation process of the bonding environment detection unit is as follows:

[0010] Obtain the difference in static electricity values ​​before and after anti-static control in the laminating processing area during the laminating period; obtain the amount of dust accumulated on the board surface when the blue film blown film board repeatedly absorbs the blue film in the laminating processing area during the laminating period, and the numerical influence of the horizontality of the surface of the thermal insulation sheet during the baffle limiting process when the thermal insulation sheet is conveyed in the laminating processing area; obtain the laminating environment detection coefficient of the laminating processing area during the laminating process through analysis;

[0011] The bonding environment detection coefficient of the bonding processing area during the bonding process is compared with the bonding environment detection coefficient threshold: if the bonding environment detection coefficient of the bonding processing area during the bonding process exceeds the bonding environment detection coefficient threshold, it is determined that there is a risk in the bonding environment detection during the bonding process, and a high-risk bonding signal is generated and sent to the detection platform; if the bonding environment detection coefficient of the bonding processing area during the bonding process does not exceed the bonding environment detection coefficient threshold, it is determined that there is no risk in the bonding environment detection during the bonding process, and a low-risk bonding signal is generated and sent to the detection platform.

[0012] As a preferred embodiment of the present invention, the operation process of the film feeding positioning detection unit is as follows:

[0013] Obtain the ratio of the area of ​​the air region on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film when the film blowing plate completes adsorption of the blue film during the film feeding process, as well as the increase in the area of ​​the corresponding region where the air region exists during the movement of the film blowing plate adsorbing the blue film. Furthermore, compare the ratio of the area of ​​the air region on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film when the film blowing plate completes adsorption of the blue film during the film feeding process, as well as the increase in the area of ​​the corresponding region where the air region exists during the movement of the film blowing plate adsorbing the blue film, with the area ratio threshold and the area increase threshold, respectively:

[0014] If the ratio of the area of ​​the air region on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film exceeds the area ratio threshold when the film blowing plate completes the adsorption of the blue film during the film feeding process, or the increase in the area of ​​the corresponding area of ​​the air region during the movement of the film blowing plate adsorbing the blue film exceeds the area increase threshold, then the current blue film blowing is judged to be abnormal, a re-blowing signal is generated and the re-blowing signal is sent to the detection platform.

[0015] As a preferred embodiment of the present invention, if the ratio of the area of ​​the air region on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film when the film blowing plate completes the adsorption of the blue film during the film feeding process does not exceed the area ratio threshold, and the increase in the area of ​​the corresponding area of ​​the air region during the movement of the film blowing plate adsorbing the blue film does not exceed the area increase threshold, then it is determined that the current blue film blowing is normal, and the current blue film is marked as a film to be pasted. The movement trajectory of the film blowing plate is obtained by using a camera in the pasting processing area, and the blue film feeding is divided into three stages: blue film adsorption, blue film transportation and blue film blowing according to the operation trajectory image of the film blowing plate. The trajectory images of the three stages are obtained according to the operation trajectory image, and are marked as adsorption image, transportation image and blowing image respectively.

[0016] As a preferred embodiment of the present invention, the film blowing plate without blue film and the starting position of the blue film are collected based on the adsorption image, and are set as the starting point and end point of the movement respectively. A preset motion trajectory is constructed based on the actual positions of the moving starting point and the moving end point, and the actual adsorption motion trajectory is obtained based on the image of the film blowing plate being adsorbed in the adsorption image, and the actual adsorption motion trajectory is compared with the preset motion trajectory;

[0017] If the position deviation of the moving trajectory of each sub-frame picture in the image does not exceed the set threshold, the adsorption action is determined to be qualified. At the same time, when the area covered by the blue film does not exceed the area of ​​the blown film plate, the position of the blue film in the current blown film plate is set as the transportation starting position. According to the transportation starting position, the sub-frame picture of the starting transportation in the transportation image is obtained, and the sub-frame picture and the adjacent sub-frame pictures are uniformly marked as transportation sub-pictures. The area of ​​the transportation sub-picture where the real-time transportation starting position of the blue film in the transportation image is located is obtained, and compared with the area where the transportation starting position in the transportation sub-picture is located;

[0018] If there is a position deviation in the area where the transport starting position in the transport sub-image is located, the blue film transportation is judged to be abnormal, and a blue film transportation adjustment signal is generated and sent to the detection platform. Conversely, if there is no position deviation in the area where the transport starting position in the transport sub-image is located, the blue film transportation is judged to be normal; after the adsorption image and the transport image are qualified in the film positioning detection, the blowing image is sent to the fitting positioning detection unit.

[0019] As a preferred embodiment of the present invention, the operation process of the feeding positioning detection unit is as follows:

[0020] Obtain the maximum instantaneous increase in the vibration amplitude of the conveying equipment during the conveying phase of the conveying process of the thermal insulation sheet entering the bonding processing area, as well as the length of the gap between the inner wall of the thermal insulation sheet baffle and the cotton edge of the thermal insulation sheet during the conveying phase of the conveying equipment, and compare them with the floating maximum instantaneous increase threshold and the gap length threshold respectively:

[0021] If the maximum instantaneous increase in the vibration amplitude of the equipment body during the conveying stage of the conveying equipment when the thermal insulation sheet enters the bonding processing area exceeds the floating maximum instantaneous increase threshold, or the length of the gap between the inner wall of the thermal insulation sheet baffle and the cotton edge of the thermal insulation sheet during the conveying stage of the conveying equipment exceeds the gap length threshold, it is determined that there is a risk in the transportation of the thermal insulation sheet, and an insulation sheet operation adjustment signal is generated and sent to the detection platform;

[0022] If the maximum instantaneous increase in the vibration amplitude of the equipment body during the conveying stage of the conveying equipment when the insulation sheet enters the bonding processing area does not exceed the maximum instantaneous increase threshold of floating, and the corresponding gap length between the inner wall of the insulation sheet baffle and the cotton edge of the insulation sheet during the conveying stage of the conveying equipment does not exceed the gap length threshold, then it is determined that there is no risk in the transportation of the insulation sheet, and the feeding positioning test of the insulation sheet is performed.

[0023] As a preferred embodiment of the present invention, a conveying trajectory of the thermal insulation sheet conveying device is obtained, and images of the thermal insulation sheets in the conveying device are captured using a camera. Specifically, conveying images are captured vertically above and horizontally to the thermal insulation sheet conveying position, and are marked as upper images and side images, respectively.

[0024] Obtain the position of the insulation sheet cotton edge in the first sub-frame image in the upper image, and compare the position of the insulation sheet cotton edge in the image with the remaining sub-frame images in the upper image according to the image sequence. If there is no deviation in the position of the insulation sheet cotton edge in the image, adjust the horizontal position of the insulation sheet;

[0025] If there is no deviation in the position of the cotton edge of the thermal insulation sheet in the image, the side image is analyzed to obtain the first sub-frame image in the side image, and a detection point is arbitrarily set in the corresponding sub-frame image and the position area of ​​the current sub-frame image where the detection point is located is obtained. The horizontality floating amount corresponding to a non-unique number of detection points in adjacent sub-frame images in the side image and the horizontality floating amount corresponding to the same detection point in non-adjacent sub-frame images are obtained;

[0026] If any of the horizontal floating amounts corresponding to the non-unique detection points in adjacent sub-frame images in the side image and the horizontal floating amounts corresponding to the same detection point in non-adjacent sub-frame images exceed the set threshold value for the horizontality, a feeding positioning deviation signal is generated and the feeding positioning deviation signal is sent to the detection platform, and the detection platform performs a body damage detection on the thermal insulation sheet or cleans up debris in the conveying device; if any of the horizontal floating amounts corresponding to the non-unique detection points in adjacent sub-frame images in the side image and the horizontal floating amounts corresponding to the same detection point in non-adjacent sub-frame images do not exceed the set threshold value for the horizontality, it is determined that the thermal insulation sheet is conveyed qualified, and an image is taken after the thermal insulation sheet is conveyed to the arrival position, and the captured image is marked as the image to be bonded, and the image to be bonded is sent to the bonding positioning detection unit.

[0027] As a preferred embodiment of the present invention, the operation process of the fitting positioning detection unit is as follows:

[0028] Perform sub-frame image analysis on the image to be bonded and the blowing image. If the blue film and the thermal insulation sheet are in the same sub-frame image, mark the corresponding sub-frame image as the final bonding starting point, and obtain the final bonding image based on the final bonding starting point. Obtain the area ratio of the blue film currently taken in the film-taking area reserved by the suction cup in the final bonding image and the time-consuming deviation of the horizontal bonding between the blue film and the cotton surface of the thermal insulation sheet when the suction cup of the adjacent bonding operation in the final bonding image presses the blue film. Compare the area ratio of the blue film currently taken in the film-taking area reserved by the suction cup in the final bonding image and the time-consuming deviation of the horizontal bonding between the blue film and the cotton surface of the thermal insulation sheet when the suction cup of the adjacent bonding operation in the final bonding image presses the blue film with the area ratio threshold and the time-consuming deviation threshold, respectively.

[0029] As a preferred embodiment of the present invention, if the area ratio of the blue film currently taken in the film-taking area reserved by the suction cup in the final bonding image exceeds the area ratio threshold, or the time deviation of the horizontal bonding of the blue film and the cotton surface of the thermal insulation sheet when the suction cups of adjacent bonding operations in the final bonding image press the blue film exceeds the time deviation threshold, it is determined that there is a bonding positioning deviation in the repetitive bonding operations during the bonding process, and a bonding positioning abnormality signal is generated and sent to the detection platform. After receiving the signal, the detection platform performs real-time bonding control on the time period of the final bonding image;

[0030] If the area ratio of the blue film currently taken in the film-taking area reserved by the suction cup in the final bonding image does not exceed the area ratio threshold, and the time deviation of the horizontal bonding of the blue film and the cotton surface of the thermal insulation sheet when the suction cups of adjacent bonding operations in the final bonding image press the blue film does not exceed the time deviation threshold, it is determined that there is no bonding positioning deviation in the repetitive bonding operations during the bonding process, and a normal bonding positioning signal is generated and sent to the detection platform. Beneficial effects

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. In the present invention, the bonding processing environment of the blue film and the thermal insulation sheet is detected to determine whether the current bonding processing environment affects the bonding positioning accuracy, thereby ensuring that the bonding processing process meets the bonding environment requirements and avoiding the processing equipment from being unable to accurately clamp the material, resulting in reduced bonding accuracy, and easily causing the bonding processing to be inefficient and unable to operate normally.

[0033] 2. In the present invention, positioning detection is performed on the film delivery process of the blue film, and a risk warning is issued during the blue film delivery process. The blue film is delivered when low risk is detected, and real-time positioning detection is performed during film delivery. Positioning detection is performed on the film delivery link to improve the accuracy of the bonding processing; positioning detection is performed on the transportation process of the thermal insulation sheet, and after judging that the positioning of the thermal insulation sheet during the transportation process entering the bonding processing area is qualified, real-time positioning detection is performed on the thermal insulation sheet to judge whether there is a deviation in the real-time positioning of the thermal insulation sheet during transportation, and the real-time position of the thermal insulation sheet is accurately detected, thereby improving the accuracy of the blue film bonding and enhancing the accuracy of the bonding between the thermal insulation sheet and the blue film; at the same time, according to the positioning analysis of the thermal insulation sheet, when the positioning is abnormal, the direction of the thermal insulation sheet can be accurately adjusted to increase the adjustment efficiency of the thermal insulation sheet.

[0034] 3. In the present invention, the blue film and the thermal insulation sheet are tested for fitting, which ensures that the final step of the fitting process can be efficiently executed, thereby improving the working efficiency of the fitting process and avoiding deviations in the final fitting of the fitting process, which would result in wasted costs for fitting transportation and fitting positioning testing, and reduce the feasibility of the fitting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0036] FIG1 is a block diagram showing the principle of the present invention. Best Mode for Carrying Out the Invention

[0037] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0039] Please refer to Figure 1, which shows a blue film lamination and positioning detection system suitable for power battery insulation sheet processing. The system includes a detection platform, wherein the detection platform is communicatively connected to a lamination environment detection unit, a film feeding positioning detection unit, a material feeding positioning detection unit, and a lamination positioning detection unit. This system uses camera image acquisition technology to perform lamination and positioning detection during the lamination process of the blue film and the insulation sheet, thereby improving the lamination accuracy of the blue film and the insulation sheet. The insulation sheet is represented by ceramic wool in this application.

[0040] During the laminating process of the blue film and the thermal insulation sheet, the detection platform generates a laminating environment detection signal and sends the laminating environment detection signal to the laminating environment detection unit. After receiving the laminating environment detection signal, the laminating environment detection unit detects the laminating process environment of the blue film and the thermal insulation sheet to determine whether the current laminating process environment affects the laminating positioning accuracy, thereby ensuring that the laminating process meets the laminating environment requirements and avoiding the processing equipment from being unable to accurately clamp the material, resulting in reduced laminating accuracy, and easily causing the laminating process to be inefficient and unable to operate normally;

[0041] Obtain the difference in static electricity values ​​before and after anti-static control in the laminating processing area during the laminating period, and mark the difference in static electricity values ​​before and after anti-static control in the laminating processing area during the laminating period as JDC; obtain the amount of dust accumulated on the board surface when the blue film blown film plate repeatedly absorbs the blue film in the laminating processing area during the laminating period, and the numerical influence of the horizontality of the surface of the thermal insulation sheet during the baffle limiting process when the thermal insulation sheet is conveyed in the laminating processing area, and mark the amount of dust accumulated on the board surface when the blue film blown film plate repeatedly absorbs the blue film in the laminating processing area during the laminating period, and the numerical influence of the horizontality of the surface of the thermal insulation sheet during the baffle limiting process when the thermal insulation sheet is conveyed in the laminating processing area as HDJ and SPY respectively;

[0042] By formula Obtain the bonding environment detection coefficient G of the bonding processing area during the bonding process, where cv1 is the preset proportional coefficient of the static value difference, cv2 is the preset proportional coefficient of the dust accumulation amount, and cv3 is the preset proportional coefficient of the numerical influence of the surface levelness. The purpose is to de-dimensionalize the data of different units when performing formula analysis; β is the error correction coefficient, which is set to 1.5;

[0043] Compare the bonding environment detection coefficient G of the bonding processing area during the bonding process with the bonding environment detection coefficient threshold:

[0044] If the bonding environment detection coefficient G of the bonding processing area during the bonding process exceeds the bonding environment detection coefficient threshold, it is determined that there is a risk in the bonding environment detection during the bonding process, and a high-risk bonding signal is generated and sent to the detection platform. After receiving the high-risk bonding signal, the detection platform controls the source of static electricity generation in the bonding processing area and adjusts the equipment operation cleaning cycle.

[0045] If the bonding environment detection coefficient G of the bonding process area during the bonding process does not exceed the bonding environment detection coefficient threshold, it is determined that there is no risk in the bonding environment detection during the bonding process, and a low-risk bonding signal is generated and sent to the detection platform;

[0046] After receiving the low-risk bonding signal, the detection platform generates a film feeding positioning detection signal and a material feeding positioning detection signal, and sends the film feeding positioning detection signal and the material feeding positioning detection signal to the film feeding positioning detection unit and the material feeding positioning detection unit respectively;

[0047] After receiving the film feeding positioning detection signal, the film feeding positioning detection unit performs positioning detection on the blue film feeding process, issues a risk warning during the blue film feeding process, feeds the blue film when the risk is low, and performs real-time positioning detection during film feeding. Positioning detection of the film feeding process improves the accuracy of the lamination process.

[0048] Obtain the ratio of the area of ​​the air region on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film when the film blowing plate completes adsorption of the blue film during the film feeding process, as well as the increase in the area of ​​the corresponding region where the air region exists during the movement of the film blowing plate adsorbing the blue film. Furthermore, compare the ratio of the area of ​​the air region on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film when the film blowing plate completes adsorption of the blue film during the film feeding process, as well as the increase in the area of ​​the corresponding region where the air region exists during the movement of the film blowing plate adsorbing the blue film, with the area ratio threshold and the area increase threshold, respectively:

[0049] If the ratio of the area of ​​the air region on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film exceeds the area ratio threshold when the film blowing plate completes the adsorption of the blue film during the film feeding process, or the increase in the area of ​​the corresponding area of ​​the air region during the movement of the film blowing plate adsorbing the blue film exceeds the area increase threshold, then the current blue film blowing is judged to be abnormal, a re-blowing signal is generated and sent to the detection platform. After receiving the re-blowing signal, the detection platform places the blue film currently adsorbed by the film blowing plate at a distance and performs surface cleaning.

[0050] If the ratio of the area of ​​the air region on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film when the film blowing plate completes the adsorption of the blue film during the film feeding process does not exceed the area ratio threshold, and the increase in the area of ​​the corresponding area of ​​the air region during the movement of the film blowing plate adsorbing the blue film does not exceed the area increase threshold, then it is determined that the current blue film blowing is normal, and the current blue film is marked as a film to be pasted. The movement trajectory of the film blowing plate is acquired through the camera in the laminating processing area, and the blue film feeding is divided into three stages: blue film adsorption, blue film transportation and blue film blowing according to the film blowing plate operation trajectory image. The trajectory images of the three stages are acquired according to the operation trajectory image, and are marked as adsorption image, transportation image and blowing image respectively.

[0051] According to the adsorption image, the film blowing plate without blue film and the starting position of the blue film are collected, and they are set as the starting point and end point of movement respectively. The preset motion trajectory is constructed according to the actual positions of the starting point and end point of movement, and the actual motion trajectory of adsorption is obtained according to the image of the film blowing plate being adsorbed in the adsorption image. The actual motion trajectory of adsorption is compared with the preset motion trajectory. If the position deviation of the motion trajectory of each subframe image in the image does not exceed the set threshold, the adsorption action is determined to be qualified. At the same time, when the area covered by the blue film does not exceed the area of ​​the film blowing plate, the position of the blue film in the current film blowing plate is set as the starting position of transportation. The starting position of transportation in the transportation image is obtained according to the starting position of transportation. The transport sub-frame picture is obtained, and according to the sub-frame picture and the adjacent sub-frame pictures, it is uniformly marked as a transport sub-picture, and the transport sub-picture area where the real-time transport starting position of the blue film in the transport image is located is obtained, and compared with the area where the transport starting position in the transport sub-picture is located. If there is a position deviation in the area where the transport starting position in the transport sub-picture is located, it is determined that the blue film transport is abnormal, and a blue film transport adjustment signal is generated and sent to the detection platform. On the contrary, if there is no position deviation in the area where the transport starting position in the transport sub-picture is located, it is determined that the blue film transport is normal; after the film positioning detection in the adsorption image and the transport image is qualified, the blowing image is sent to the fitting positioning detection unit;

[0052] After receiving the feeding positioning detection signal, the feeding positioning detection unit performs positioning detection on the heat insulation sheet during transportation. After judging that the heat insulation sheet is qualified in the transportation process of entering the bonding processing area, the heat insulation sheet is subjected to real-time positioning detection to judge whether there is any deviation in the real-time positioning of the heat insulation sheet during transportation, accurately detect the real-time position of the heat insulation sheet, improve the accuracy of the blue film bonding, and enhance the accuracy of the bonding between the heat insulation sheet and the blue film. At the same time, according to the heat insulation sheet positioning analysis, the heat insulation sheet can be accurately adjusted in the event of positioning abnormalities, thereby increasing the adjustment efficiency of the heat insulation sheet.

[0053] Obtain the maximum instantaneous increase in the vibration amplitude of the equipment body during the conveying phase of the conveying equipment when the thermal insulation sheet enters the laminating processing area, as well as the length of the gap between the inner wall of the thermal insulation sheet baffle and the cotton edge of the thermal insulation sheet during the conveying phase of the conveying equipment. Compare these values ​​with the floating maximum instantaneous increase threshold and the gap length threshold, respectively:

[0054] If the maximum instantaneous increase in the vibration amplitude of the equipment body during the conveying stage of the conveying equipment during the conveying process of the thermal insulation sheet entering the bonding processing area exceeds the floating maximum instantaneous increase threshold, or the gap length between the inner wall of the thermal insulation sheet baffle and the cotton edge of the thermal insulation sheet during the conveying stage of the conveying equipment exceeds the gap length threshold, then it is determined that there is a risk in the transportation of the thermal insulation sheet, and an insulation sheet operation adjustment signal is generated and sent to the detection platform. After receiving the signal, the detection platform adjusts the position of the transportation baffle of the thermal insulation sheet and controls the vibration amplitude of the bonding processing equipment. If there is a large amplitude vibration, the thermal insulation sheet is inspected for transportation;

[0055] If the maximum instantaneous increase in the vibration amplitude of the equipment body during the conveying phase of the conveying equipment when the thermal insulation sheet enters the bonding processing area does not exceed the maximum instantaneous increase threshold of floating, and the length of the gap between the inner wall of the thermal insulation sheet baffle and the cotton edge of the thermal insulation sheet during the conveying phase of the conveying equipment does not exceed the gap length threshold, then it is determined that there is no risk in the transportation of the thermal insulation sheet, and the feeding positioning test of the thermal insulation sheet is performed;

[0056] Obtain the conveying trajectory of the thermal insulation sheet conveying equipment, and acquire images of the thermal insulation sheets in the conveying equipment according to the camera, specifically, acquire conveying images vertically above and horizontally to the thermal insulation sheet transport position, and mark them as upper images and side images respectively; obtain the position of the thermal insulation sheet cotton edge in the first sub-frame image in the upper image, and compare the position of the thermal insulation sheet cotton edge in the image according to the order of the images of the remaining sub-frame images in the upper image. If there is no deviation in the position of the thermal insulation sheet cotton edge in the image, adjust the horizontal position of the thermal insulation sheet; if there is no deviation in the position of the thermal insulation sheet cotton edge in the image, perform side image analysis, obtain the first sub-frame image in the side image, and arbitrarily set detection points in the corresponding sub-frame images and obtain the position area of ​​the current sub-frame image where the detection points are located, and obtain that the corresponding number of adjacent sub-frame images in the side image is not unique. The horizontal floating amount corresponding to the detection point and the horizontal floating amount of the non-adjacent sub-frame pictures corresponding to the same detection point, if any value of the horizontal floating amount corresponding to the detection point of the adjacent sub-frame pictures corresponding to a non-unique number and the horizontal floating amount of the non-adjacent sub-frame pictures corresponding to the same detection point in the side image exceeds the horizontal setting threshold, a feeding positioning deviation signal is generated, and the feeding positioning deviation signal is sent to the detection platform, and the detection platform performs a body damage detection on the thermal insulation sheet or cleans up debris in the conveying device; if any value of the horizontal floating amount corresponding to the detection point of the adjacent sub-frame pictures corresponding to a non-unique number and the horizontal floating amount of the non-adjacent sub-frame pictures corresponding to the same detection point does not exceed the horizontal setting threshold, it is determined that the thermal insulation sheet is conveyed qualified, and an image is taken after the thermal insulation sheet is conveyed to the arrival position, and the captured image is marked as the image to be bonded, and the image to be bonded is sent to the bonding positioning detection unit;

[0057] After receiving the image to be bonded and the blowing image, the bonding positioning detection unit performs bonding detection on the blue film and the thermal insulation sheet to ensure that the final step of the bonding process can be carried out efficiently, thereby improving the working efficiency of the bonding process and avoiding deviations in the final bonding process, which would result in wasted costs for bonding conveying and bonding positioning detection, and reduce the feasibility of the bonding process.

[0058] Perform sub-frame image analysis on the image to be bonded and the blowing image. If the blue film and the thermal insulation sheet are in the same sub-frame image, mark the corresponding sub-frame image as the final bonding starting point, and obtain the final bonding image based on the final bonding starting point. Obtain the current blue film area ratio in the suction cup reserved film removal area in the final bonding image and the time deviation of the blue film and the thermal insulation sheet cotton surface horizontally bonded when the suction cup of the adjacent bonding operation in the final bonding image presses the blue film. Compare the current blue film area ratio in the suction cup reserved film removal area in the final bonding image and the time deviation of the blue film and the thermal insulation sheet cotton surface horizontally bonded when the suction cup of the adjacent bonding operation in the final bonding image presses the blue film with the area ratio threshold and the time deviation threshold respectively:

[0059] If the area ratio of the blue film currently taken in the film-taking area reserved by the suction cup in the final bonding image exceeds the area ratio threshold, or the time deviation of the horizontal bonding of the blue film and the cotton surface of the thermal insulation sheet when the suction cups of adjacent bonding operations press the blue film in the final bonding image exceeds the time deviation threshold, it is determined that there is a bonding positioning deviation in the repetitive bonding operations during the bonding process, and a bonding positioning abnormality signal is generated and sent to the detection platform. After receiving the signal, the detection platform performs real-time bonding control on the time period of the final bonding image;

[0060] If the area ratio of the blue film currently taken in the film-taking area reserved by the suction cup in the final bonding image does not exceed the area ratio threshold, and the time deviation of the horizontal bonding of the blue film and the cotton surface of the thermal insulation sheet when the suction cups of adjacent bonding operations in the final bonding image press the blue film does not exceed the time deviation threshold, it is determined that there is no bonding positioning deviation in the repetitive bonding operations during the bonding process, and a normal bonding positioning signal is generated and sent to the detection platform.

[0061] The above formulas are obtained by collecting a large amount of data and performing software simulation to select a formula close to the actual value. The coefficients in the formula are set by those skilled in the art according to actual conditions;

[0062] When the present invention is in use, the bonding environment detection unit detects the bonding processing environment of the blue film and the thermal insulation sheet, obtains the bonding environment detection coefficient of the bonding processing area during the bonding process, generates a high-risk bonding signal or a low-risk bonding signal based on the bonding environment detection coefficient comparison, and sends it to the detection platform; after the detection platform receives the low-risk bonding signal, the film feeding positioning detection unit issues a risk warning to it during the blue film feeding process, feeds the blue film when low risk is detected, and performs real-time positioning detection when feeding the film; the feeding positioning detection unit performs positioning detection on the thermal insulation sheet during transportation, and performs real-time positioning detection on the thermal insulation sheet after judging that the positioning of the thermal insulation sheet during the transportation process into the bonding processing area is qualified. After completing the blue film positioning detection and the thermal insulation sheet positioning detection, the bonding positioning detection unit performs bonding detection on the blue film and the thermal insulation sheet. Modes for Carrying Out the Invention

[0063] Type here a paragraph describing embodiments of the invention. Industrial Applicability

[0064] Type your industrial applicability description paragraph here. Sequence Listing Free Content

[0065] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Blue film lamination positioning detection system suitable for power battery thermal insulation sheet processing, It is characterized in that Including the detection platform, the detection platform communication connections are: The bonding environment detection unit detects the bonding processing environment of the blue film and the thermal insulation sheet, obtains the bonding environment detection coefficient of the bonding processing area during the bonding process, generates a high-risk bonding signal or a low-risk bonding signal according to the comparison of the bonding environment detection coefficient, and sends it to the detection platform; after the detection platform receives the low-risk bonding signal, the film feeding positioning detection unit issues a risk warning during the blue film feeding process, feeds the blue film when low risk is detected, and performs real-time positioning detection during film feeding; the feeding positioning detection unit performs positioning detection on the thermal insulation sheet during transportation, and performs real-time positioning detection on the thermal insulation sheet after determining that the positioning of the thermal insulation sheet entering the bonding processing area is qualified during the transportation process, and after completing the blue film positioning detection and the thermal insulation sheet positioning detection, the bonding positioning detection unit performs bonding detection on the blue film and the thermal insulation sheet.

2. According to claim 1, the blue film laminating positioning detection system suitable for power battery thermal insulation sheet processing, It is characterized in that The operation process of the bonding environment detection unit is as follows: Obtain the difference in static electricity values ​​before and after anti-static control in the laminating processing area during the laminating period; obtain the amount of dust accumulation on the board surface when the blue film blown film board in the laminating processing area repeatedly absorbs the blue film during the laminating period, and the numerical influence of the horizontality of the surface of the thermal insulation sheet during the baffle limiting process when the thermal insulation sheet is transported in the laminating processing area; obtain the laminating environment detection coefficient of the laminating processing area during the laminating process through analysis; The fitting environment detection coefficient of the fitting processing area during the fitting process is compared with the fitting environment detection coefficient threshold: if the fitting environment detection coefficient of the fitting processing area during the fitting process exceeds the fitting environment detection coefficient threshold, it is determined that there is a risk in the fitting environment detection during the fitting process, and a high-risk fitting signal is generated and sent to the detection platform; if the fitting environment detection coefficient of the fitting processing area during the fitting process does not exceed the fitting environment detection coefficient threshold, it is determined that there is no risk in the fitting environment detection during the fitting process, and a low-risk fitting signal is generated and sent to the detection platform.

3. According to claim 1, the blue film laminating positioning detection system suitable for power battery thermal insulation sheet processing, It is characterized in that The operation process of the film feeding positioning detection unit is as follows: The ratio of the area of ​​the air region on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film when the film blowing plate completes the adsorption of the blue film during the film feeding process, as well as the increase in the area of ​​the corresponding area where the air region exists during the movement of the film blowing plate adsorbing the blue film, are obtained. The ratio of the area of ​​the air region on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film when the film blowing plate completes the adsorption of the blue film during the film feeding process, as well as the increase in the area of ​​the corresponding area where the air region exists during the movement of the film blowing plate adsorbing the blue film, are compared with the area ratio threshold and the area increase threshold, respectively: If the ratio of the area of ​​the air area on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film exceeds the area ratio threshold when the film blowing plate completes the adsorption of the blue film during the film feeding process, or the increase in the area of ​​the corresponding area of ​​the air area during the movement of the film blowing plate adsorbing the blue film exceeds the area increase threshold, then the current blue film blowing is judged to be abnormal, and a re-blowing signal is generated and sent to the detection platform.

4. According to claim 3, the blue film lamination positioning detection system suitable for power battery thermal insulation sheet processing, It is characterized in that If the ratio of the area of ​​the air region on the contact surface between the film blowing plate and the blue film to the total area of ​​the blue film does not exceed the area ratio threshold when the film blowing plate completes the adsorption of the blue film during the film feeding process, and the increase in the area of ​​the corresponding area of ​​the air region during the movement of the film blowing plate adsorbing the blue film does not exceed the area increase threshold, then it is determined that the current blue film blowing is normal, and the current blue film is marked as a film to be pasted, and the movement trajectory of the film blowing plate is acquired through the camera in the pasting processing area, and the blue film feeding is divided into three stages: blue film adsorption, blue film transportation and blue film blowing according to the running trajectory image of the film blowing plate, and the trajectory images of the three stages are acquired according to the running trajectory image, and are respectively marked as adsorption image, transportation image and blowing image.

5. According to claim 4, the blue film laminating positioning detection system suitable for power battery thermal insulation sheet processing, It is characterized in that The film blowing plate without blue film and the starting placement position of the blue film are collected according to the adsorption image, and they are set as the moving starting point and the moving end point respectively. The preset motion trajectory is constructed according to the actual positions of the moving starting point and the moving end point, and the actual adsorption motion trajectory is obtained according to the image of the film blowing plate being adsorbed in the adsorption image, and the actual adsorption motion trajectory is compared with the preset motion trajectory; If the position deviation of the moving track of each sub-frame picture in the image does not exceed the set threshold, the adsorption action is determined to be qualified. At the same time, when the area covered by the blue film does not exceed the area of ​​the film blowing plate, the position of the blue film in the current film blowing plate is set as the transportation starting position, and the sub-frame picture of the starting transportation in the transportation image is obtained according to the transportation starting position, and the sub-frame picture and the adjacent sub-frame pictures are uniformly marked as transportation sub-pictures, and the transportation sub-picture area where the real-time transportation starting position of the blue film in the transportation image is located is obtained, and compared with the area where the transportation starting position in the transportation sub-picture is located; If there is a position deviation in the area where the transport starting position in the transport sub-image is located, the blue film transportation is judged to be abnormal, and a blue film transportation adjustment signal is generated and sent to the detection platform; conversely, if there is no position deviation in the area where the transport starting position in the transport sub-image is located, the blue film transportation is judged to be normal; after the adsorption image and the film positioning detection in the transport image are qualified, the blowing image is sent to the bonding positioning detection unit.

6. According to claim 1, the blue film laminating positioning detection system suitable for power battery thermal insulation sheet processing, It is characterized in that The operation process of the feeding positioning detection unit is as follows: The maximum instantaneous increase in the vibration amplitude of the equipment body during the conveying stage of the conveying equipment when the thermal insulation sheet enters the bonding processing area and the corresponding gap length between the inner wall of the thermal insulation sheet baffle and the cotton edge of the thermal insulation sheet during the conveying stage of the conveying equipment are obtained, and compared with the floating maximum instantaneous increase threshold and the gap interval length threshold respectively: If the maximum instantaneous increase in the vibration amplitude of the equipment body during the conveying stage of the conveying equipment during the conveying process of the thermal insulation sheet entering the bonding processing area exceeds the maximum instantaneous increase threshold of floating, or the corresponding gap length between the inner wall of the thermal insulation sheet baffle and the cotton edge of the thermal insulation sheet during the conveying stage of the conveying equipment exceeds the gap length threshold, it is determined that there is a risk in the transportation of the thermal insulation sheet, and an insulation sheet operation adjustment signal is generated and sent to the detection platform; If the maximum instantaneous increase in the vibration amplitude of the equipment body during the conveying stage of the conveying equipment when the insulation sheet enters the bonding processing area does not exceed the maximum instantaneous increase threshold of floating, and the corresponding gap length between the inner wall of the insulation sheet baffle and the cotton edge of the insulation sheet during the conveying stage of the conveying equipment does not exceed the gap length threshold, then it is determined that there is no risk in the transportation of the insulation sheet, and the feeding positioning detection of the insulation sheet is performed.

7. The blue film lamination positioning detection system suitable for power battery thermal insulation sheet processing according to claim 6, It is characterized in that Obtain the conveying track of the thermal insulation sheet conveying equipment, and acquire images of the thermal insulation sheets in the conveying equipment using the camera, specifically, acquire conveying images vertically above and horizontally to the thermal insulation sheet conveying position, and mark them as upper images and side images, respectively; The position of the cotton edge of the thermal insulation sheet in the first sub-frame image in the upper image is obtained, and the position of the cotton edge of the thermal insulation sheet in the image is compared with the remaining sub-frame images in the upper image according to the image sequence. If there is no deviation in the position of the cotton edge of the thermal insulation sheet in the image, the horizontal position of the thermal insulation sheet is adjusted; If there is no deviation in the position of the cotton edge of the thermal insulation sheet in the image, perform side image analysis to obtain the first sub-frame image in the side image, and arbitrarily set a detection point in the corresponding sub-frame image and obtain the position area of ​​the current sub-frame image where the detection point is located, obtain the horizontal degree floating amount corresponding to the non-unique number of detection points corresponding to adjacent sub-frame images in the side image and the horizontal degree floating amount corresponding to the same detection point in non-adjacent sub-frame images; If any value of the horizontal floating amount corresponding to the detection points corresponding to the non-unique number of adjacent sub-frame images in the side image and the horizontal floating amount of the same detection point corresponding to the non-adjacent sub-frame images exceeds the set threshold of the horizontality, a feeding positioning deviation signal is generated, and the feeding positioning deviation signal is sent to the detection platform, and the detection platform performs a body damage detection on the thermal insulation sheet or cleans up the debris in the conveying device; if any value of the horizontal floating amount corresponding to the detection points corresponding to the non-unique number of adjacent sub-frame images in the side image and the horizontal floating amount of the same detection point corresponding to the non-adjacent sub-frame images do not exceed the set threshold of the horizontality, it is determined that the thermal insulation sheet is conveyed qualified, and an image is taken after the thermal insulation sheet is conveyed to the arrival position, and the captured image is marked as the image to be bonded, and the image to be bonded is sent to the bonding positioning detection unit.

8. The blue film laminating positioning detection system suitable for power battery thermal insulation sheet processing according to claim 1, It is characterized in that The operation process of the fit positioning detection unit is as follows: Perform sub-frame image analysis on the image to be bonded and the blowing image. If the blue film and the thermal insulation sheet are in the same sub-frame image, mark the corresponding sub-frame image as the final bonding starting point, and obtain the final bonding image based on the final bonding starting point, obtain the current blue film area ratio in the film-taking area reserved by the suction cup in the final bonding image and the time-consuming deviation of the horizontal bonding between the blue film and the cotton surface of the thermal insulation sheet when the suction cup of the adjacent bonding operation in the final bonding image presses the blue film, and compare the current blue film area ratio in the film-taking area reserved by the suction cup in the final bonding image and the time-consuming deviation of the horizontal bonding between the blue film and the cotton surface of the thermal insulation sheet when the suction cup of the adjacent bonding operation in the final bonding image presses the blue film with the area ratio threshold and the time-consuming deviation threshold, respectively.

9. The blue film laminating positioning detection system suitable for power battery thermal insulation sheet processing according to claim 8, It is characterized in that If the area ratio of the blue film currently taken in the film-taking area reserved by the suction cup in the final bonding image exceeds the area ratio threshold, or the time deviation of the horizontal bonding of the blue film and the cotton surface of the thermal insulation sheet when the suction cups of adjacent bonding operations in the final bonding image press the blue film exceeds the time deviation threshold, it is determined that there is a bonding positioning deviation in the repetitive bonding operations during the bonding process, and a bonding positioning abnormality signal is generated and sent to the detection platform. After receiving the signal, the detection platform performs real-time bonding control on the time period of the final bonding image; If the area ratio of the blue film currently taken in the film-taking area reserved by the suction cup in the final bonding image does not exceed the area ratio threshold, and the time deviation of the horizontal bonding between the blue film and the cotton surface of the insulation sheet when the suction cups of adjacent bonding operations in the final bonding image press the blue film does not exceed the time deviation threshold, it is determined that there is no bonding positioning deviation in the repetitive bonding operations during the bonding process, and a normal bonding positioning signal is generated and sent to the detection platform.

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