CN117169238B - Protective film defect detection equipment and method thereof - Google Patents
Protective film defect detection equipment and method thereof Download PDFInfo
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- CN117169238B CN117169238B CN202311457522.XA CN202311457522A CN117169238B CN 117169238 B CN117169238 B CN 117169238B CN 202311457522 A CN202311457522 A CN 202311457522A CN 117169238 B CN117169238 B CN 117169238B
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- 238000001514 detection method Methods 0.000 title claims abstract description 123
- 230000001681 protective effect Effects 0.000 title claims abstract description 109
- 230000007547 defect Effects 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000007921 spray Substances 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims description 3
- 238000013500 data storage Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 description 7
- 238000011056 performance test Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The invention relates to a protective film defect detection device and a method thereof in the technical field of protective film detection, wherein the device comprises a front detection end, a rear clamping end and a pair of winders, linear guide rails are arranged on the front detection end, the rear clamping end and the winders, the front detection end comprises a first lower supporting table and a first upper supporting table with a first air cylinder, and a laser scanning device and a laser receiver are respectively arranged on the first lower supporting table and the first upper supporting table; the back clamping end is including the second of having the second cylinder down saddle and the second on the saddle, installs the mark shower nozzle in the second on the saddle, is equipped with pressurizing mechanism between preceding detection end and the back clamping end, conveniently carries out pressure and pulling force detection to the protection film, and can carry out defect test to the protection film is whole fast after every detection, conveniently marks the defect position after the defect test, but every section protection film detects after finishing fast switch over to next protection film, the continuous detection of convenient protection film.
Description
Technical Field
The invention relates to a protective film defect detection device and a method thereof, in particular to a protective film defect detection device and a method thereof, which are applied to the technical field of protective film detection.
Background
In the subsequent processing and transportation processes of the metal and the coated metal plate, a layer of protective film is adhered on the surface in order to prevent surface scratch and pollution, and the protective film has strict performance requirements in order to ensure full protection of the metal, so that the protective film needs to be detected during production of the protective film.
In order to solve the problem of detection of the protective film, a certain detection device in the market adopts the design of a visual identification technology, and has a certain market occupation ratio.
The invention discloses a PVA film stretching performance detection device and a detection method, and provides a PVA film stretching performance detection device which can realize soaking treatment and stretching treatment of a PVA film in different solutions and ensure accurate evaluation of the performance of the PVA film, aiming at the problem that the performance detection result is inaccurate due to the fact that the PVA film is taken out for stretching performance detection after soaking.
The existing protection film defect detection is inconvenient to continuously detect, the protection film is inconvenient to quickly carry out recheck after being subjected to performance tests such as stretching and compression, the existing protection film is moved to a detection device for detection after being subjected to the performance tests, the detection result is easily affected by interference of other factors in the moving process, the detection result after the performance tests is easy to be inaccurate, and the detection efficiency is low.
Content of the application
Aiming at the prior art, the invention aims to solve the technical problems that the detection result is easily affected by the interference of other factors when the existing protective film is detected after performance test, the detection result after the performance test is easily inaccurate, and the detection efficiency is lower.
In order to solve the problems, the invention provides protective film defect detection equipment, which comprises a front detection end, a rear clamping end and a pair of winders, wherein linear guide rails are arranged on the front detection end, the rear clamping end and the winders, the front detection end comprises a first lower supporting table and a first upper supporting table with first air cylinders, and a laser scanning device and a laser receiver are respectively arranged on the first lower supporting table and the first upper supporting table;
the rear clamping end comprises a second lower supporting table and a second upper supporting table, wherein the second lower supporting table and the second upper supporting table are provided with second air cylinders, a marking spray head is arranged in the second upper supporting table and comprises an electric guide rail, and a spray head main body is fixedly connected to the movable end of the electric guide rail;
the pressurizing mechanism is arranged between the front detection end and the rear clamping end and comprises a pair of movable frames with air cylinders, the movable ends of the pair of movable frames are fixedly connected with mounting shafts, the mounting shafts are provided with pressure blocks, and the pressure blocks are internally provided with image acquisition devices.
In the protective film defect detection equipment, the pressure and the tension of the protective film are conveniently detected, the defect test can be rapidly carried out on the whole protective film after each detection, and the defect position of the mark nozzle is conveniently marked after the defect test.
As still further improvement of this application, the rolling ware includes the rolling wheel, and the winding is connected with the fixed band on the rolling wheel, has seted up a plurality of evenly distributed's mark mounting line on the fixed band.
As a still further improvement of the present application, the opposite ends of the first lower pallet and the first upper pallet and the second lower pallet and the second upper pallet are paved with damping strips.
As yet another refinement of the present application, the pressure blocks include a cone press block, a cylinder press block, and a cube press block, and the image pickup device is disposed at opposite ends of the pair of pressure blocks.
A protective film defect detection device and a method thereof, the specific method comprises:
s1, connecting two ends of a protective film to be detected with two winders respectively, and penetrating the protective film through a front detection end and a rear clamping end;
s2, driving a pair of winders to synchronously move before detection, enabling the whole protective film to pass through a front detection end, enabling a laser scanning device to detect defects of the protective film, enabling the pair of winders to synchronously work when defect points are detected, enabling the protective film to be horizontally conveyed for a fixed distance to enable the defect points to be matched with the positions of marking spray heads, enabling the marking spray heads to spray marks on the defect points, enabling the winders to drive and reset the protective film, continuing to detect the defects, and continuing to detect the next step when the number of the defect points is smaller than a set value, otherwise, winding the protective film, and carrying out next-stage protective film detection;
s3, after defect detection, controlling the front detection end and the rear clamping end to clamp the protective film, and stretching the protective film after clamping to detect the tensile property of the protective film, wherein at the moment, a pair of winders are fixed, and a pair of image acquisition devices on the mounting shafts acquire images; after the detection is finished, resetting the device, and driving the protective film to a front detection end for rechecking;
s4, controlling the pressurizing mechanism to work, enabling one pressure block to pressurize the protective film, and enabling an image acquisition device on the other pressure block to acquire images of the protective film, and monitoring the pressurized process of the protective film; after the detection is finished, resetting the device, and driving the protective film to a front detection end for rechecking;
s5, after the detection of the protective film is finished, resetting the device, winding the detected protective film by the winding device, and unwinding the protective film to be detected at the next section between the front detection end and the rear clamping end.
As a supplement to the further improvement of the present application, the rechecking step of the protective film in S3 and S4 includes: after the front detection end, the rear clamping end and the pressurizing mechanism are reset, the pair of winders are driven by the linear guide rail at constant speed at a fixed interval, and at the moment, the protective film between the pair of winders passes through the front detection end at constant speed, so that the laser scanning device rechecks the protective film.
As still another improvement of this application, still include detection control system, detection control system is with preceding detection end, back clamping end, linear guide, pressurizing mechanism and the controller of rolling ware connection, be connected with data processing module, data storage module and data analysis module on the controller.
To sum up, this scheme is convenient to carry out pressure and pulling force to the protection film and detects the back at every turn and can carry out the defect test to the protection film is whole fast, conveniently marks the defect position after the defect test, but every section protection film detects and can switch to next protection film fast after ending, the continuous detection of convenient protection film.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present application;
FIG. 2 is a cross-sectional view of a first embodiment of the present application;
fig. 3 is a front view of the first embodiment of the present application when the protective film is sandwiched;
fig. 4 is a front view of the stretch protective film of the first embodiment of the present application;
fig. 5 is a front view of the protective film of the first embodiment of the present application when pressurized;
FIG. 6 is a top view of a first embodiment of the present application;
FIG. 7 is a flowchart of a detection method according to a second embodiment of the present application;
fig. 8 is a logic flow diagram of a defect detection operation according to a second embodiment of the present application.
The reference numerals in the figures illustrate:
1 front detection end, 2 back clamping end, 3 mark shower nozzle, 4 pressurizing mechanism, 5 winders.
Detailed Description
Two embodiments of the present application are described in detail below with reference to the accompanying drawings.
First embodiment:
1-6 show a protective film defect detection device, which comprises a front detection end 1, a rear clamping end 2 and a pair of winders 5, wherein linear guide rails are arranged on the front detection end 1, the rear clamping end 2 and the winders 5, each winder 5 comprises a winding wheel, a fixing belt is wound on each winding wheel, a plurality of uniformly distributed mark mounting lines are arranged on each fixing belt, each fixing belt is a breakable paper bag, and when the protective film is pressed or stretched, the fixing belt bearing the protective film can be rapidly broken;
the front detection end 1 comprises a first lower supporting table and a first upper supporting table with first air cylinders, wherein a laser scanning device and a laser receiver are respectively arranged on the first lower supporting table and the first upper supporting table, the laser receiver is used for detecting the light transmittance of the protective film, and the laser scanning device is used for scanning the image of the protective film and positioning defect points; damping strips are paved at opposite ends of the first lower saddle, the first upper saddle, the second lower saddle and the second upper saddle.
The rear clamping end 2 comprises a second lower supporting table and a second upper supporting table, wherein the second lower supporting table and the second upper supporting table are provided with second air cylinders, a marking spray head 3 is arranged in the second upper supporting table, the marking spray head 3 comprises an electric guide rail, and a spray head main body is fixedly connected to the movable end of the electric guide rail; the ink box is arranged on the marking spray head 3, and a detachable clamping cover is arranged on the top of the second upper supporting table, so that the ink box can be replaced conveniently.
The pressure mechanism 4 is arranged between the front detection end 1 and the rear clamping end 2, the pressure mechanism 4 comprises a pair of movable frames with air cylinders, fixed ends of the air cylinders are connected with an external installation frame, a vertical guide rail is installed on the external installation frame, movable ends of the vertical guide rail are connected with fixed ends of the air cylinders, an installation shaft is fixedly connected with the movable ends of the movable frames, a pressure block is installed on the installation shaft, an image acquisition device is installed in the pressure block, the pressure block comprises a cone pressing block, a cylinder pressing block and a cube pressing block, the image acquisition device is arranged at opposite ends of the pressure block, an installation groove matched with the image acquisition device is formed in the pressure block, the image acquisition device is connected with an external power supply through the installation shaft and the movable frames, and a transparent protection sheet matched with the pressure block is arranged at an opening of the installation groove.
The protection film defect detection equipment of this embodiment conveniently carries out pressure and pulling force detection to the protection film, and can carry out the defect test to the protection film is whole fast after detecting at every turn, conveniently marks through mark shower nozzle defect position after the defect test.
In a second embodiment of the present invention,
fig. 3-8 show a method for detecting defects of a protective film, which specifically includes:
s1, connecting two ends of a protective film to be detected with two winders 5 respectively, penetrating the protective film through a front detection end 1 and a rear clamping end 2, and sampling the protective film to be detected in a production line;
s2, before detection, a pair of winders 5 can be driven to synchronously move, so that the whole protective film passes through a front detection end 1, a laser scanning device detects defects of the protective film, when defect points are detected, the winders 5 synchronously work, the protective film is horizontally conveyed for a fixed distance, the fixed distance is the shortest distance between the laser scanning device and the axis of a marking spray head 3, the positions of the defect points are matched with the positions of the marking spray head 3, at the moment, the marking spray head 3 sprays marks on the defect points, then the winders 5 drive the protective film to reset, the defect detection is continued, when the number of the defect points is smaller than a set value, the next detection is continued, otherwise, the protective film is wound, and the next section of protective film detection is carried out;
s3, after defect detection, the front detection end 1 and the rear clamping end 2 are controlled to clamp the protective film, the protective film is stretched after clamping to detect the tensile property of the protective film, at the moment, the pair of winders 5 are fixed, and the image acquisition devices on the pair of pressure blocks acquire images; after the detection is finished, resetting the device, and driving the protective film to the front detection end 1 for rechecking;
s4, controlling the pressurizing mechanism 4 to work, enabling one pressure block to pressurize the protective film, and enabling an image acquisition device on the other pressure block to acquire images of the protective film, and monitoring the pressurized process of the protective film; after the detection is finished, resetting the device, and driving the protective film to the front detection end 1 for rechecking;
s5, after the detection of the protective film, the device is reset, the winder 5 winds the detected protective film, and the protective film to be detected at the next section is unwound between the front detection end 1 and the rear clamping end 2.
The rechecking step of the protective film in S3 and S4 comprises the following steps: after the front detection end 1, the rear clamping end 2 and the pressurizing mechanism 4 are reset, the pair of winders 5 are driven by the linear guide rail at constant speed, at the moment, the protective film between the pair of winders 5 passes through the front detection end 1 at constant speed, so that the laser scanning device rechecks the protective film, and whether the protective film is additionally provided with a defect point after being stretched or pressed is detected through rechecking.
The device further comprises a detection control system, wherein the detection control system is connected with a front detection end 1, a rear clamping end 2, a linear guide rail, a pressurizing mechanism 4 and a winder 5, and a data processing module, a data storage module and a data analysis module are connected to the controller.
When the scheme is used for continuously detecting the protective film, the protective film to be detected is fixed on a winding belt between a pair of winders 5, and when the protective film is fixed, the protective film is distributed on the winding belt at equal intervals, and then the protective film is wound into the winders 5 close to the front detection end 1;
during detection, a section of protection film is placed between the front detection end 1 and the rear clamping end 2 by unreeling through the reeling device 5, and then the protection film is detected by the detection method of the first embodiment;
after the detection of the protective film is finished, the section of protective film is wound into the other winding device 5, and at the moment, the other section of protective film is released between the front detection end 1 and the rear clamping end 2, so that the continuous detection of a plurality of protective films is facilitated.
In general, this scheme is convenient to carry out pressure and pulling force to the protection film and detects the back at every turn and can carry out the defect test to the protection film is whole fast, conveniently marks the defect position after the defect test, and the protection film can preset on the winding wheel, but every section protection film detects and can switch to next protection film fast after ending, makes things convenient for the continuous detection of protection film.
The scope of protection of the above-described embodiments employed in the present application is not limited to the above-described embodiments, and various changes made by those skilled in the art without departing from the spirit of the present application are still within the scope of protection of the present invention.
Claims (5)
1. A protection film defect detection method is characterized in that: the device comprises protective film defect detection equipment, wherein the protective film defect detection equipment comprises a front detection end (1), a rear clamping end (2) and a pair of winders (5), linear guide rails are arranged on the front detection end (1), the rear clamping end (2) and the winders (5), the front detection end (1) comprises a first lower supporting table and a first upper supporting table which are provided with first air cylinders, and a laser scanning device and a laser receiver are respectively arranged on the first lower supporting table and the first upper supporting table;
the rear clamping end (2) comprises a second lower supporting table and a second upper supporting table, wherein the second lower supporting table and the second upper supporting table are provided with second air cylinders, a marking spray head (3) is arranged in the second upper supporting table, the marking spray head (3) comprises an electric guide rail, and a spray head main body is fixedly connected to the movable end of the electric guide rail;
a pressurizing mechanism (4) is arranged between the front detection end (1) and the rear clamping end (2), the pressurizing mechanism (4) comprises a pair of movable frames with air cylinders, the movable ends of the pair of movable frames are fixedly connected with mounting shafts, and pressure blocks are mounted on the mounting shafts; an image acquisition device is arranged in the pressure block;
the specific method comprises the following steps:
s1, connecting two ends of a protective film to be detected with two winders (5) respectively, and penetrating the protective film through a front detection end (1) and a rear clamping end (2);
s2, before detection, a pair of winders (5) can be driven to synchronously move, so that the whole protective film passes through a front detection end (1), a laser scanning device detects defects of the protective film, when a defect point is detected, the pair of winders (5) synchronously work, the protective film is horizontally conveyed for a fixed distance, the defect point is matched with a marking spray head (3), at the moment, the marking spray head (3) sprays marks on the defect point, then the winders (5) drive the protective film to reset, the defect detection is continuously carried out, when the number of the defect points is smaller than a set value, the next detection is continuously carried out, otherwise, the protective film is wound, and the next section of protective film detection is carried out;
s3, after defect detection, controlling the front detection end (1) and the rear clamping end (2) to clamp the protective film, and stretching the protective film after clamping to detect the tensile property of the protective film, wherein at the moment, a pair of winders (5) are fixed, and a pair of image acquisition devices on the mounting shafts acquire images; after the detection is finished, resetting the device, and driving the protective film to a front detection end (1) for rechecking;
s4, controlling the pressurizing mechanism (4) to work, so that one pressure block pressurizes the protective film, and an image acquisition device on the other pressure block acquires an image of the protective film to monitor the compression process of the protective film; after the detection is finished, resetting the device, and driving the protective film to a front detection end (1) for rechecking;
the rechecking step comprises the following steps: after the front detection end (1), the rear clamping end (2) and the pressurizing mechanism (4) are reset, a pair of winders (5) are driven by the linear guide rail at constant speed at a fixed interval, and at the moment, a protective film between the pair of winders (5) passes through the front detection end (1) at constant speed, so that the laser scanning device rechecks the protective film;
s5, after the detection of the protective film, the device is reset, the winder (5) winds the detected protective film, and the protective film to be detected at the next section is unwound between the front detection end (1) and the rear clamping end (2).
2. The protective film defect detection method according to claim 1, wherein: the winding device (5) comprises a winding wheel, a fixing belt is wound on the winding wheel, and a plurality of uniformly distributed mark mounting lines are arranged on the fixing belt.
3. The protective film defect detection method according to claim 1, wherein: damping strips are paved at opposite ends of the first lower supporting table, the first upper supporting table, the second lower supporting table and the second upper supporting table.
4. The protective film defect detection method according to claim 1, wherein: the pressure blocks comprise cone pressing blocks, cylinder pressing blocks and cube pressing blocks, and the image acquisition device is arranged at the opposite ends of the pair of pressure blocks.
5. The protective film defect detection method according to claim 1, wherein: the device further comprises a detection control system, wherein the detection control system is connected with a front detection end (1), a rear clamping end (2), a linear guide rail, a pressurizing mechanism (4) and a winder (5), and a data processing module, a data storage module and a data analysis module are connected to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311457522.XA CN117169238B (en) | 2023-11-03 | 2023-11-03 | Protective film defect detection equipment and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311457522.XA CN117169238B (en) | 2023-11-03 | 2023-11-03 | Protective film defect detection equipment and method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN117169238A CN117169238A (en) | 2023-12-05 |
| CN117169238B true CN117169238B (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311457522.XA Active CN117169238B (en) | 2023-11-03 | 2023-11-03 | Protective film defect detection equipment and method thereof |
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| CN (1) | CN117169238B (en) |
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| CN204789359U (en) * | 2015-05-27 | 2015-11-18 | 中科瑞阳膜技术（北京）有限公司 | Diaphragm defect detecting ware |
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| CN108489880A (en) * | 2018-02-08 | 2018-09-04 | 深圳市博盛新材料有限公司 | A kind of detection device and detection method for diaphragm |
| CN211553788U (en) * | 2019-12-30 | 2020-09-22 | 泛泰大西(常州)电子科技股份有限公司 | AOI detection system |
| CN212391410U (en) * | 2020-10-15 | 2021-01-22 | 北京碧水源分离膜科技有限公司 | Automatic defect detecting and marking device in hollow fiber membrane yarn production process |
| CN114295627A (en) * | 2021-12-31 | 2022-04-08 | 广东炬森智能装备有限公司 | Full-automatic detection device and detection method for flexible circuit board |
| CN216646262U (en) * | 2021-11-27 | 2022-05-31 | 深圳市泰润电子轻胶制品有限公司 | Automatic PET protection film surface defect detection system |
| CN218223584U (en) * | 2022-08-17 | 2023-01-06 | 浙江东柔新材料有限公司 | Protection film surface defect detection device for OLED |
-
2023
- 2023-11-03 CN CN202311457522.XA patent/CN117169238B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204789359U (en) * | 2015-05-27 | 2015-11-18 | 中科瑞阳膜技术（北京）有限公司 | Diaphragm defect detecting ware |
| CN207114442U (en) * | 2017-09-08 | 2018-03-16 | 深圳力普尔智能科技有限公司 | A kind of diaphragm open defect detection means |
| CN108489880A (en) * | 2018-02-08 | 2018-09-04 | 深圳市博盛新材料有限公司 | A kind of detection device and detection method for diaphragm |
| CN211553788U (en) * | 2019-12-30 | 2020-09-22 | 泛泰大西(常州)电子科技股份有限公司 | AOI detection system |
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| CN117169238A (en) | 2023-12-05 |
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