CN206740668U - A kind of film defects online detection instrument - Google Patents
A kind of film defects online detection instrument Download PDFInfo
- Publication number
- CN206740668U CN206740668U CN201720629056.2U CN201720629056U CN206740668U CN 206740668 U CN206740668 U CN 206740668U CN 201720629056 U CN201720629056 U CN 201720629056U CN 206740668 U CN206740668 U CN 206740668U
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- film
- light source
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- image acquisition
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- 230000007547 defect Effects 0.000 title claims abstract description 64
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 239000010408 film Substances 0.000 claims description 84
- 239000010409 thin film Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The utility model proposes a kind of film defects online detection instrument, for after film (100) stretched roller (200), into before traction wind-up roll (300), defect on-line checking is carried out to the film (100), wherein, the film defects online detection instrument includes being arranged on the light source assembly (1) below the film (100), the back-end server (3) of the image collection assembly (2) of light source assembly (1) and connection described image acquisition component (2) described in face is arranged on above the film (100).The film defects online detection instrument of the application can be transferred to back-end server by image collection assembly shooting photo and be identified, can be with effective detection film defects, so as to effectively control the mass defect problems such as the flake of film surface and string.
Description
Technical Field
The utility model relates to a film production technical field especially relates to a film defect on-line measuring equipment.
Background
Films made of materials such as polyethylene terephthalate (PET) are widely used in the fields of plastic packaging, liquid crystal displays, biomedical applications, and the like. With the expansion of the usage amount of each application field, the quality requirements of users on various film products are higher and higher. For example, in order to improve the surface performance of a PET film and improve the printing adaptability and interlayer bonding force, corona treatment is generally adopted to improve the surface tension of the film, and fish eyes and crystal points of the film affect the appearance of a printed product after film coating, particularly a high-grade or spot-color printed product, which causes poor appearance, so that manufacturers are forced to solve the problems frequently occurring in the production process at any time, such as high light transmission, high surface smoothness, small thickness tolerance, defect number and other parameters, so as to ensure the apparent quality of the film.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a film defect on-line measuring equipment to reduce or avoid the aforementioned problem.
Particularly, the utility model provides a film defect on-line measuring equipment can effectively detect the film defect to quality defect problems such as the fisheye on effective control film surface and cluster point.
For solving the technical problem, the utility model provides a film defect on-line measuring equipment for after the film is through tensile roller, it is right before the wind-up roll is drawn in the entering the film carries out defect on-line measuring, a serial communication port, film defect on-line measuring equipment is including setting up light source subassembly, the setting of film below are in the film top is just right the image acquisition subassembly and the connection of light source subassembly the rear end server of image acquisition subassembly.
Preferably, the image acquisition assembly comprises a plurality of high-speed cameras transversely arranged in a direction perpendicular to the advancing direction of the film, and each high-speed camera is connected with the rear-end server through a circuit.
Preferably, the number of the plurality of high-speed cameras is 11.
The on-line detection device for the defects of the thin film as claimed in claim or the above, wherein the images taken by the plurality of high-speed cameras are spliced to seamlessly cover the transverse width of the thin film.
Preferably, the light source assembly consists of a backlight source with an LED light strip disposed therein.
Preferably, the light source assembly and the image acquisition assembly are supported in parallel below and above the film in a high-altitude manner by support structures arranged on both sides of the film.
Preferably, the light source assembly further comprises a light source assembly outer housing cooperating with the support structure for receiving and supporting the inner structure of the light source assembly.
Preferably, the image capturing assembly further comprises an image capturing assembly outer housing cooperating with the support structure for receiving and supporting the internal structure of the image capturing assembly.
The film defect on-line measuring equipment of this application can shoot the photo through the image acquisition subassembly and transmit for the rear end server and discern, can effectively detect the film defect to quality defect problems such as effectively control film surface's fisheye and cluster point.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
FIG. 1 is a schematic structural diagram of an on-line film defect inspection apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a film defect on-line detection apparatus according to another embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
The utility model provides a film defect on-line measuring equipment is shown in fig. 1, and it shows and is according to the utility model discloses a film defect on-line measuring equipment's of a specific embodiment structural schematic diagram, film defect on-line measuring equipment shown in the figure is used for after film 100 passes through stretching roller 200, before the entering pulls wind-up roll 300, it is right film 100 carries out defect on-line measuring, promptly, as shown in fig. 1, film 100 need be in the state after processing is accomplished, before pulling the rolling packing, with film 100 stretch-draw exhibition flat between two sets of rollers to carry out defect detection through the film defect on-line measuring equipment of this application.
Further, as shown in the figure, the film defect online detection apparatus of the present application includes a light source assembly 1 disposed below the film 100, an image capturing assembly 2 disposed above the film 100 and facing the light source assembly 1, and a back-end server 3 connected to the image capturing assembly 2.
The basic operation principle of the thin film defect on-line detection device of the present application is described in detail below with reference to the accompanying drawings: first, since the film 100 is transparent, the light source assembly 1 is disposed below the film 100, light emitted from the light source assembly 1 is transmitted through the film 100, and then the film 100 is photographed by the image pickup assembly 2 above the film 100. If the film 100 has defective spots, such as so-called fish eyes, string dots, etc., the light below the film 100 will not completely penetrate the film 100 at the positions of the defective spots, so that spots will be formed on the picture taken by the image capturing assembly 2, and the positions without defects have only the color of the light source on the picture, for example, in one embodiment, the light source assembly 1 is composed of a backlight source with an LED light strip inside, which may be a white backlight source commonly used in the field of existing lighting and display devices, and is preferably a white surface light source (or other color light sources may be used as the case may be) larger than the minimum size of the picture according to the size of the picture, so as to form a pure white picture background on the film 100 at the positions without defects. Of course, in order to minimize the influence of the light source on the image, it is preferable that the image capturing assembly 2 is disposed above the film 100 and opposite to the light source assembly 1, so as to avoid the occurrence of shadow on the photo due to the angle difference of the light and thus the interference with the identification of the subsequent defect.
In one embodiment, as shown, the image capturing assembly 2 comprises a plurality of high-speed cameras 21 arranged transversely to the advancing direction of the film 100, and each high-speed camera 21 is connected to the back-end server 3 through a circuit, which is indicated by the arrow in the figure as the advancing direction of the film 100. In another embodiment, the number of the plurality of high speed cameras 21 is 11, as shown. Preferably, the images captured by the plurality of high-speed cameras 21 are spliced to seamlessly cover the transverse width of the film 100. That is, as shown in the figure, since the transverse dimension of the film 100 is large, it is difficult for a single high-speed camera 21 to clearly cover the transverse width of the entire film 100, so that a plurality of high-speed cameras 21 are arranged in the transverse direction, and the images taken by each high-speed camera 21 are spliced to form a large picture which completely and seamlessly covers the transverse width of the film 100, so that any defect point which may occur is not missed. The dotted line part in fig. 1 schematically shows the rectangular area covered by the high-speed cameras 21 on both sides, and downward shooting of the middle high-speed camera 21 is omitted to avoid too much unclear line.
The pictures obtained by the image acquisition assembly 2 are transmitted to the back-end server 3 on line in real time through a circuit, and of course, the shooting time of each picture is also transmitted to the back-end server 3. In addition, a drawing roll of a general film production apparatus, for example, the drawing wind-up roll 300 is usually provided with a meter counter (not shown) for measuring the length of the film 100, the meter counter and the drawing roll operate synchronously, and the value of the meter counter at the time of taking a picture is also transmitted to the back-end server 3.
After the photo is transmitted to the back-end server 3, the photo is recognized through recognition software running on the back-end server 3, if no defect exists, a pure white image is displayed, if the defect exists, a spot is formed on a white background, the size of the spot is recognized through the recognition software, for example, if the diameter of the spot is larger than a preset numerical value, the defect exists, the photo is automatically marked through the software, the shooting time and the size of the defect are recorded, the vertical and horizontal coordinates of the defect on the film 100 are determined through the shooting time, the corresponding meter counter and the position calculation of the high-speed camera 21, and the defect is located and recorded. The equipment can determine that the defect is accurate to 0.5 square/mm, the minimum accuracy can reach 0.01 square/mm, and finally, a picture is independently generated corresponding to the coordinate position to form a record and store the record in a defect folder of the back-end server 3. The defect pictures in the defect folder are mainly used for checking the severity of the defects so as to avoid software errors. Certainly, if a large or regular defect is encountered, the production process, raw materials, equipment and the like may have faults, the alarm can be set through software, the equipment can be shut down emergently after the defect picture is verified manually, and the continuous loss caused by the generation of large-batch waste products is avoided. The size of the spots on the photo is identified through software, particularly, the identification of a plurality of spots on a pure white background image is still easy to achieve, and the spot size identification method can be matched with commercially available commercial software for processing, and the software is not in the protection scope of the application and is not repeated.
Finally, after the number of defects of each batch and each roll of film products is verified, the film products can be graded and classified according to market consumption conditions, the film products with different grades have different prices, and the film products with more defects can only be treated as waste products.
Fig. 2 shows a schematic structural diagram of an on-line detection apparatus for film defects according to another embodiment of the present invention, as shown in the figure, the light source assembly 1 and the image capturing assembly 2 are supported below and above the film 100 in a manner of being in a high-altitude parallel with the supporting structure 4 disposed on both sides of the film 100, and for clearly displaying in fig. 2, the thickness of the film 100 is enlarged, and in practice, the thickness thereof is too small to display a line, which is not easy to clearly see. That is, with respect to fig. 1, the embodiment shown in fig. 2 shows a specific support structure 4, i.e. the light source assembly 1 and the image acquisition assembly 2 are respectively integrated into a layered structure supported on the support structure 4. In a specific embodiment, the light source module 1 further includes a light source module outer casing, which is used for accommodating and supporting the inner structure of the light source module 1 and is matched with the supporting structure 4, for example, the light source module outer casing may be made of light-permeable polyester plastic, and a scattering structure is arranged right opposite to one side of the film 100, so as to scatter the punctiform LED light bands as much as possible to form a surface light source, so as to avoid forming spots on the image and affecting subsequent identification. Similarly, in another embodiment, the image capturing assembly 2 further comprises an image capturing assembly outer casing cooperating with the supporting structure 4 for accommodating and supporting the internal structure of the image capturing assembly 2, for example, the image capturing assembly outer casing may be a metal frame structure, and a corresponding shooting hole (not shown) is provided on the metal frame structure corresponding to the side of each high speed camera 21 facing the film 100.
To sum up, the film defect on-line measuring equipment of this application can shoot the photo through the image acquisition subassembly and transmit for the rear end server and discern, can effectively detect the film defect to quality defect problems such as effectively control film surface's fisheye and cluster point.
It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (8)
1. The utility model provides a film defect on-line measuring equipment for after film (100) process stretching roller (200), before entering traction wind-up roll (300), right film (100) carry out defect on-line measuring, its characterized in that, film defect on-line measuring equipment is including setting up light source subassembly (1), the setting of film (100) below are in film (100) top is just right image acquisition subassembly (2) and the connection of light source subassembly (1) rear end server (3) of image acquisition subassembly (2).
2. The film defect online detection device according to claim 1, wherein the image acquisition assembly (2) comprises a plurality of high-speed cameras (21) arranged transversely to the advancing direction of the film (100), and each high-speed camera (21) is connected with the back-end server (3) through a circuit.
3. The on-line detection apparatus for film defects according to claim 2, wherein the number of the plurality of high-speed cameras (21) is 11.
4. The on-line detection device for the defect of the thin film as claimed in claim 2 or 3, wherein the images taken by the plurality of high-speed cameras (21) are spliced to seamlessly cover the transverse width of the thin film (100).
5. The apparatus for on-line detection of film defects as defined in claim 1, wherein said light source assembly (1) is comprised of a backlight source with LED light strips disposed therein.
6. The apparatus for on-line detection of film defects according to any of claims 1-3, 5, wherein the light source assembly (1) and the image capturing assembly (2) are supported in parallel, in a high-altitude manner, below and above the film (100) by means of support structures (4) disposed on both sides of the film (100).
7. The apparatus for on-line detection of film defects according to claim 6, wherein said light source assembly (1) further comprises a light source assembly outer housing cooperating with said support structure (4) for receiving and supporting the inner structure of said light source assembly (1).
8. The apparatus for on-line detection of film defects according to claim 6, characterized in that said image acquisition assembly (2) further comprises an image acquisition assembly outer casing cooperating with said supporting structure (4) for housing and supporting the internal structure of said image acquisition assembly (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720629056.2U CN206740668U (en) | 2017-06-01 | 2017-06-01 | A kind of film defects online detection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720629056.2U CN206740668U (en) | 2017-06-01 | 2017-06-01 | A kind of film defects online detection instrument |
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| Publication Number | Publication Date |
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| CN206740668U true CN206740668U (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720629056.2U Active CN206740668U (en) | 2017-06-01 | 2017-06-01 | A kind of film defects online detection instrument |
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| CN (1) | CN206740668U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267675A (en) * | 2018-01-31 | 2018-07-10 | 钱立文 | A kind of novel thin film electricity weak point test instrument |
| CN108489989A (en) * | 2018-03-28 | 2018-09-04 | 苏州巨能图像检测技术有限公司 | The two-sided appearance detecting instrument of photovoltaic module based on the detection of polyphaser joining image-forming |
| CN108508022A (en) * | 2018-03-28 | 2018-09-07 | 苏州巨能图像检测技术有限公司 | Polyphaser joining image-forming detection method |
| CN108931533A (en) * | 2018-05-04 | 2018-12-04 | 天津博霆光电技术有限公司 | A kind of the PVC film flake detection device and method of view-based access control model |
| CN109239089A (en) * | 2018-09-29 | 2019-01-18 | 胡杏玉 | A kind of metal plate holes on-line measuring device and its application method |
| CN109799237A (en) * | 2019-01-21 | 2019-05-24 | 深圳市南科燃料电池有限公司 | Defect detection device and detection method |
| CN110687119A (en) * | 2018-07-04 | 2020-01-14 | 东腾投资集团有限公司 | Defect detection method, system and device and computer readable storage medium |
| CN113155851A (en) * | 2021-04-30 | 2021-07-23 | 西安交通大学 | Copper-clad plate surface defect visual online detection method and device based on deep learning |
| CN113777041A (en) * | 2021-09-14 | 2021-12-10 | 宁波勤邦新材料科技有限公司 | Film flaw detection device and detection method |
| CN114113137A (en) * | 2021-11-10 | 2022-03-01 | 佛山科学技术学院 | Defect detection system and method for thin film material |
| CN114199830A (en) * | 2022-02-17 | 2022-03-18 | 深圳市白雪投影显示技术有限公司 | Detection apparatus for long burnt anti light film of optics |
| CN115219512A (en) * | 2022-09-20 | 2022-10-21 | 常州树杰塑业有限公司 | PE film surface crystal point detection equipment |
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2017
- 2017-06-01 CN CN201720629056.2U patent/CN206740668U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267675A (en) * | 2018-01-31 | 2018-07-10 | 钱立文 | A kind of novel thin film electricity weak point test instrument |
| CN108489989A (en) * | 2018-03-28 | 2018-09-04 | 苏州巨能图像检测技术有限公司 | The two-sided appearance detecting instrument of photovoltaic module based on the detection of polyphaser joining image-forming |
| CN108508022A (en) * | 2018-03-28 | 2018-09-07 | 苏州巨能图像检测技术有限公司 | Polyphaser joining image-forming detection method |
| CN108508022B (en) * | 2018-03-28 | 2021-07-13 | 苏州巨能图像检测技术有限公司 | Multi-camera splicing imaging detection method |
| CN108931533A (en) * | 2018-05-04 | 2018-12-04 | 天津博霆光电技术有限公司 | A kind of the PVC film flake detection device and method of view-based access control model |
| CN110687119A (en) * | 2018-07-04 | 2020-01-14 | 东腾投资集团有限公司 | Defect detection method, system and device and computer readable storage medium |
| CN109239089A (en) * | 2018-09-29 | 2019-01-18 | 胡杏玉 | A kind of metal plate holes on-line measuring device and its application method |
| CN109799237A (en) * | 2019-01-21 | 2019-05-24 | 深圳市南科燃料电池有限公司 | Defect detection device and detection method |
| CN113155851A (en) * | 2021-04-30 | 2021-07-23 | 西安交通大学 | Copper-clad plate surface defect visual online detection method and device based on deep learning |
| CN113777041A (en) * | 2021-09-14 | 2021-12-10 | 宁波勤邦新材料科技有限公司 | Film flaw detection device and detection method |
| CN114113137A (en) * | 2021-11-10 | 2022-03-01 | 佛山科学技术学院 | Defect detection system and method for thin film material |
| CN114113137B (en) * | 2021-11-10 | 2024-06-25 | 佛山科学技术学院 | Defect detection system and method for film material |
| CN114199830A (en) * | 2022-02-17 | 2022-03-18 | 深圳市白雪投影显示技术有限公司 | Detection apparatus for long burnt anti light film of optics |
| CN115219512A (en) * | 2022-09-20 | 2022-10-21 | 常州树杰塑业有限公司 | PE film surface crystal point detection equipment |
| CN115219512B (en) * | 2022-09-20 | 2023-02-28 | 常州树杰塑业有限公司 | PE film surface crystal point detection equipment |
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