CA2607942A1 - Method for performing a quality control on the processing of products and device applied thereby - Google Patents
Method for performing a quality control on the processing of products and device applied thereby Download PDFInfo
- Publication number
- CA2607942A1 CA2607942A1 CA002607942A CA2607942A CA2607942A1 CA 2607942 A1 CA2607942 A1 CA 2607942A1 CA 002607942 A CA002607942 A CA 002607942A CA 2607942 A CA2607942 A CA 2607942A CA 2607942 A1 CA2607942 A1 CA 2607942A1
- Authority
- CA
- Canada
- Prior art keywords
- images
- product
- memory
- recorded
- processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
- G06T7/001—Industrial image inspection using an image reference approach
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30136—Metal
Abstract
Method for performing a quality control of a processed product, characterised in that it mainly consists in first storing images of a product (3) in a memory (11) during and/or after its desired and correct processing; in recording images of a product (3) to be checked during and/or after its processing; in comparing the recorded images to the images in the memory (11) ; and in taking action if the recorded images differ from the images in the memory, either to reject the product (3) or to reposition or adjust the product (3) .
Description
Method for performing a quality control on the processing of products and device applied thereby.
The present invention concerns a method for performing a quality control on the processing of products, in particular the folding of steel plates or the like.
It is known to implement several checkpoints in a production process to check the quality of the processed products.
The present invention concerns a method for checking the quality, whereby every product to be processed can be checked right before, during and immediately after a performed working step.
To this end, a method according to the invention mainly consists in first storing images of a product in a memory during and/or after its correct processing; in recording images of a product to be checked during and/or after its processing; in comparing the recorded images to the images in the memory; and in taking action if the recorded images differ from the images in the memory, either to reject the product or to reposition or adjust the product.
An advantage of the present invention is that the quality of the product can be checked during or immediately after its processing, such that in case of a possible production failure, not the entire batch will have to be checked for CONFIRMATION COPY
The present invention concerns a method for performing a quality control on the processing of products, in particular the folding of steel plates or the like.
It is known to implement several checkpoints in a production process to check the quality of the processed products.
The present invention concerns a method for checking the quality, whereby every product to be processed can be checked right before, during and immediately after a performed working step.
To this end, a method according to the invention mainly consists in first storing images of a product in a memory during and/or after its correct processing; in recording images of a product to be checked during and/or after its processing; in comparing the recorded images to the images in the memory; and in taking action if the recorded images differ from the images in the memory, either to reject the product or to reposition or adjust the product.
An advantage of the present invention is that the quality of the product can be checked during or immediately after its processing, such that in case of a possible production failure, not the entire batch will have to be checked for CONFIRMATION COPY
any possible defects, as the defect will be restricted to a single product.
Another advantage of the present invention is that any possible faults occurring during the production can be set right immediately, such that the processed product can still meet all possible quality requirements. Thus, when detecting a fault, for example a steel plate being insufficiently bent, the processing step concerned, i.e.
the folding, can be repeated so as to adjust the formed fold.
The present invention also concerns a device which can be applied with a method according to the invention, which device consists of at least one or several image sensors;
one or several image processors comprising a memory and a processor; and a control unit.
In order to better explain the characteristics of the present invention, the following preferred embodiment of a method according to the invention is given as an example only without being limitative in any way, as well as some preferred devices used thereby, with reference to the accompanying drawings, in which:
figure 1 represents a device which is equipped with means to apply a method according to the invention;
figure 2 represents a view according to arrow F2 in figure 1;
Another advantage of the present invention is that any possible faults occurring during the production can be set right immediately, such that the processed product can still meet all possible quality requirements. Thus, when detecting a fault, for example a steel plate being insufficiently bent, the processing step concerned, i.e.
the folding, can be repeated so as to adjust the formed fold.
The present invention also concerns a device which can be applied with a method according to the invention, which device consists of at least one or several image sensors;
one or several image processors comprising a memory and a processor; and a control unit.
In order to better explain the characteristics of the present invention, the following preferred embodiment of a method according to the invention is given as an example only without being limitative in any way, as well as some preferred devices used thereby, with reference to the accompanying drawings, in which:
figure 1 represents a device which is equipped with means to apply a method according to the invention;
figure 2 represents a view according to arrow F2 in figure 1;
figure 3 represents the same view as in figure 2, but for another point in time during the processing of a product;
figures 4 and 5 schematically represent a method according to the invention.
Figure 1 in this case represents a device 1 for performing a quality control, set up to check the operation of, for example, a machine 2 for folding steel plates 3 or the like and/or to check the quality of the processed products, in particular the angle a at which the steel plate 3 concerned is folded and the position of the fold in relation to this steel plate 3.
The device 1 comprises an image sensor 4, for example in the form of a camera; an image processor 5; and a control unit 6.
The image sensor 4, which is in this case fixed to a stand 1, is directed towards a zone 8 of the above-mentioned machine 2 in which a steel plate 3 concerned is folded.
This image sensor 4, depending on the product to be checked, is preferably sensitive to all light frequencies between ultraviolet and infrared light, and to coherent as well as non-coherent light.
The image processor 5, which is connected to the above-mentioned image sensor 4 and the above-mentioned control unit 6 respectively by means of two cables 9-10, comprises a memory 11 and one or several processor units 12.
figures 4 and 5 schematically represent a method according to the invention.
Figure 1 in this case represents a device 1 for performing a quality control, set up to check the operation of, for example, a machine 2 for folding steel plates 3 or the like and/or to check the quality of the processed products, in particular the angle a at which the steel plate 3 concerned is folded and the position of the fold in relation to this steel plate 3.
The device 1 comprises an image sensor 4, for example in the form of a camera; an image processor 5; and a control unit 6.
The image sensor 4, which is in this case fixed to a stand 1, is directed towards a zone 8 of the above-mentioned machine 2 in which a steel plate 3 concerned is folded.
This image sensor 4, depending on the product to be checked, is preferably sensitive to all light frequencies between ultraviolet and infrared light, and to coherent as well as non-coherent light.
The image processor 5, which is connected to the above-mentioned image sensor 4 and the above-mentioned control unit 6 respectively by means of two cables 9-10, comprises a memory 11 and one or several processor units 12.
Finally, the control unit 6 is coupled to the machine 2 by means of a cable 13.
It is clear that the different parts of the device 1 must not necessarily be coupled by means of cables 9,10,13, but that also other means can be applied to transmit data between said parts, such as for example infrared radiation or other wireless connections.
The above-mentioned device 1 makes it possible to check the operation of a machine 2 in a very simple and efficient manner, as well as the quality of the obtained products, in this case steel plates 3.
Before the device is applied to check the operation of a machine 2 and/or to check the quality of the products 3 obtained, images of the above-mentioned zone 8 are recorded for all possible situations, for example those as represented in figures 2 and 3.
These recorded images are transmitted to the above-mentioned image processor 5, where they are processed by the processor 12 and are stored in the memory 11, after which these images are used, while the device 1 is in use, as a reference to check the operation of the machine 2 or while a quality control of the processed steel plates 3 is being performed.
It is clear that the reference images can also be obtained in other ways, for example by storing the figures and/or photos in the memory 11.
It is clear that the different parts of the device 1 must not necessarily be coupled by means of cables 9,10,13, but that also other means can be applied to transmit data between said parts, such as for example infrared radiation or other wireless connections.
The above-mentioned device 1 makes it possible to check the operation of a machine 2 in a very simple and efficient manner, as well as the quality of the obtained products, in this case steel plates 3.
Before the device is applied to check the operation of a machine 2 and/or to check the quality of the products 3 obtained, images of the above-mentioned zone 8 are recorded for all possible situations, for example those as represented in figures 2 and 3.
These recorded images are transmitted to the above-mentioned image processor 5, where they are processed by the processor 12 and are stored in the memory 11, after which these images are used, while the device 1 is in use, as a reference to check the operation of the machine 2 or while a quality control of the processed steel plates 3 is being performed.
It is clear that the reference images can also be obtained in other ways, for example by storing the figures and/or photos in the memory 11.
5 In order to perform a check on the machine 2 or on the obtained steel plates 3, the images which are recorded by the image sensor 4 are directly transmitted to the image processor 5, where they are compared to the reference images in the processor 12 which are stored in the memory 11.
In case the recorded images differ from the reference images, the processor 12, as is schematically represented in figures 4 and 5, will generate an error message which is transmitted to the control unit 6, which can then take a pre-programmed action.
Thus, when the steel plate 3 is for example badly placed in the machine 2, the position will be adjusted until the recorded images of the position of said steel plate 3 correspond to the pre-recorded reference images of the initial position for folding the plates 3 represented in figure 3, after which the folding of the steel plate 3 may start.
In another example, the action taken consists in shutting down the machine 2 and activating an alarm system so as to warn a qualified person that his/her intervention is required to correctly start up the machine 2 again.
In case the recorded images differ from the reference images, the processor 12, as is schematically represented in figures 4 and 5, will generate an error message which is transmitted to the control unit 6, which can then take a pre-programmed action.
Thus, when the steel plate 3 is for example badly placed in the machine 2, the position will be adjusted until the recorded images of the position of said steel plate 3 correspond to the pre-recorded reference images of the initial position for folding the plates 3 represented in figure 3, after which the folding of the steel plate 3 may start.
In another example, the action taken consists in shutting down the machine 2 and activating an alarm system so as to warn a qualified person that his/her intervention is required to correctly start up the machine 2 again.
It is also possible, of course, if the recorded images differ from the reference images, for example if the angle a at which a steel plate 3 is folded is too acute, that the product 3 will be simply rejected and will be separated from the correctly processed products 3.
If the zone 8 which is recorded by the image sensor 4 also comprises a part of the machine, the device 1 can be applied to check whether essential parts of the machine 2, in this case a stamp 14 and a mould 15 for folding steel plates 3, are not damaged; whether the stamp 14 is not blunt; whether there are no undesired objects in the mould 15. Thus, it becomes possible, should the stamp 14 and/or the mould 15 be damaged, to shut down the machine 2 in order to prevent a faulty production.
Naturally, the device 1 can also be used to check whether the stamp 14 and/or mould 15 provided in the machine 2 correspond to the desired processing that is to be carried out by the machine 2 whereby, when a faulty stamp 14 or mould 15 is detected, the production can be stopped prematurely and whereby an error signal can be generated.
It is clear that the above-described device according to the invention can be provided with one or several light sources which can be aimed either or not directly at the zone 8 which is recorded by the image sensor 4.
It is also clear that, depending on the zone 8 which is to be recorded to perform a desired quality control, several image sensors 4 can be applied, which image sensors 4 can be coupled to separate image processors 5 in this case, which are in turn connected to the above-mentioned control unit 6.
It should be noted that said one or several image sensors 4 must not necessarily be provided on a stand 7 or the like, but that they can also be hung up directly on either or not moving parts of the machine 2.
The present invention is by no means limited to the above-described embodiments represented in the accompanying drawings; on the contrary, such a method according to the invention and a device applied thereby for performing a quality control of a processed product can be realised according to many different variants while still remaining within the scope of the invention.
If the zone 8 which is recorded by the image sensor 4 also comprises a part of the machine, the device 1 can be applied to check whether essential parts of the machine 2, in this case a stamp 14 and a mould 15 for folding steel plates 3, are not damaged; whether the stamp 14 is not blunt; whether there are no undesired objects in the mould 15. Thus, it becomes possible, should the stamp 14 and/or the mould 15 be damaged, to shut down the machine 2 in order to prevent a faulty production.
Naturally, the device 1 can also be used to check whether the stamp 14 and/or mould 15 provided in the machine 2 correspond to the desired processing that is to be carried out by the machine 2 whereby, when a faulty stamp 14 or mould 15 is detected, the production can be stopped prematurely and whereby an error signal can be generated.
It is clear that the above-described device according to the invention can be provided with one or several light sources which can be aimed either or not directly at the zone 8 which is recorded by the image sensor 4.
It is also clear that, depending on the zone 8 which is to be recorded to perform a desired quality control, several image sensors 4 can be applied, which image sensors 4 can be coupled to separate image processors 5 in this case, which are in turn connected to the above-mentioned control unit 6.
It should be noted that said one or several image sensors 4 must not necessarily be provided on a stand 7 or the like, but that they can also be hung up directly on either or not moving parts of the machine 2.
The present invention is by no means limited to the above-described embodiments represented in the accompanying drawings; on the contrary, such a method according to the invention and a device applied thereby for performing a quality control of a processed product can be realised according to many different variants while still remaining within the scope of the invention.
Claims (14)
1.- Method for performing a quality control of a processed product, characterised in that it mainly consists in first storing images of a product (3) in a memory (11) during and/or after its desired and correct processing; in recording images of a product (3) to be checked during and/or after its processing; in comparing the recorded images to the images in the memory (11); and in taking action if the recorded images differ from the images in the memory, either to reject the product (3) or to reposition or adjust the product (3).
2.- Method according to claim 1, characterised in that at least one image sensor (4) is used to record images.
3.- Method according to any one of claims 1 or 2, characterised in that the action taken consists in activating an alarm system.
4.- Method according to any one of the preceding claims, characterised in that the images are recorded while the product (3) to be processed or the processed product (3) is provided in a machine (2) for processing it.
5.- Method according to claim 4, characterised in that it additionally consists in first storing images in the memory (11) of at least a part of the machine (2) which is used to effectively process the product (3) during and/or following a desired and correct action; in recording images of the above-mentioned part during and/or after the processing of the product (3); in comparing the recorded images to the images in the memory (11); and in taking action when the recorded images differ from the images in the memory (11), so as to stop any further operation of the machine (2).
6.- Method according to any one of the preceding claims, characterised in that the processing of the product consists in folding a steel plate (3) or the like.
7.- Device for performing a quality control according to a method according to any one of the preceding claims, characterised in that it consists of at least one or several image sensors (4) ; one or several image processors (5) comprising a memory (11) and a processor (12) ; and a control unit (6).
8.- Device according to claim 7, characterised in that at least one of the image sensors (4) is a camera.
9.- Device according to any one of claims 7 or 8, characterised in that it comprises at least one light source.
10.- Device according to any one of claims 7 to 9, characterised in that the light source is aimed directly at a zone (8) which is recorded by one or several image sensors (4).
11.- Device according to any one of claims 7 to 9, characterised in that the light source is aimed indirectly at a zone (8) which is recorded by one or several image sensors (4).
12.- Device according to any one of claims 7 to 11, characterised in that one or several image sensors (4) is/are sensitive to all light frequencies going from infrared to ultraviolet.
13.- Device according to any one of claims 7 to 12, characterised in that at least one of the image sensors (4) is sensitive to coherent light beams.
14.- Device according to any one of claims 7 to 12, characterised in that at least one of the image sensors (4) is sensitive to non-coherent light beams.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE2005/0248 | 2005-05-19 | ||
| BE2005/0248A BE1016591A3 (en) | 2005-05-19 | 2005-05-19 | METHOD OF PERFORMING A QUALITY CONTROL ON THE PROCESSING OF PRODUCTS AND APPARATUS APPLIED THEREOF |
| PCT/BE2006/000053 WO2006122378A1 (en) | 2005-05-19 | 2006-05-18 | Method for performing a quality control on the processing of products and device applied thereby. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2607942A1 true CA2607942A1 (en) | 2006-11-23 |
Family
ID=35134302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002607942A Abandoned CA2607942A1 (en) | 2005-05-19 | 2006-05-18 | Method for performing a quality control on the processing of products and device applied thereby |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20090169091A1 (en) |
| EP (1) | EP1899916A1 (en) |
| AU (1) | AU2006246999A1 (en) |
| BE (1) | BE1016591A3 (en) |
| CA (1) | CA2607942A1 (en) |
| WO (1) | WO2006122378A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7909244B2 (en) * | 2007-12-20 | 2011-03-22 | Ncr Corporation | Methods of operating an image-based self-service check depositing terminal to provide enhanced check images and an apparatus therefor |
| US10520931B2 (en) * | 2012-01-17 | 2019-12-31 | DISH Technologies L.L.C. | Systems and methods for enabling and disabling operation of manufacturing machines |
| CN113112470B (en) * | 2021-04-08 | 2023-12-15 | 揭阳市柏亿不锈钢有限公司 | Cold rolling process steel bending detection analysis method based on artificial intelligence |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4649621A (en) * | 1986-02-21 | 1987-03-17 | Artos Engineering Company | Wire processing apparatus having control means |
| US5613013A (en) * | 1994-05-13 | 1997-03-18 | Reticula Corporation | Glass patterns in image alignment and analysis |
| US5549002A (en) * | 1994-07-01 | 1996-08-27 | General Electric Company | Method for detecting and characterizing flaws in engineering materials |
| US5721587A (en) * | 1995-07-07 | 1998-02-24 | Amada Mfg America Inc. | Method and apparatus for inspecting product processed by turret punch press machine |
| US6573887B1 (en) * | 1996-04-22 | 2003-06-03 | O'donnell, Jr. Francis E. | Combined writing instrument and digital documentor |
| US6438272B1 (en) * | 1997-12-31 | 2002-08-20 | The Research Foundation Of State University Of Ny | Method and apparatus for three dimensional surface contouring using a digital video projection system |
| US6788411B1 (en) * | 1999-07-08 | 2004-09-07 | Ppt Vision, Inc. | Method and apparatus for adjusting illumination angle |
| US6788210B1 (en) * | 1999-09-16 | 2004-09-07 | The Research Foundation Of State University Of New York | Method and apparatus for three dimensional surface contouring and ranging using a digital video projection system |
| US6770141B1 (en) * | 1999-09-29 | 2004-08-03 | Smithkline Beecham Corporation | Systems for controlling evaporative drying processes using environmental equivalency |
| US6689319B1 (en) * | 1999-10-29 | 2004-02-10 | Agilent Technologies, Ind. | Apparatus for deposition and inspection of chemical and biological fluids |
| US6337122B1 (en) * | 2000-01-11 | 2002-01-08 | Micron Technology, Inc. | Stereolithographically marked semiconductors devices and methods |
| JP3542946B2 (en) * | 2000-06-29 | 2004-07-14 | 新日本製鐵株式会社 | High strength steel sheet excellent in workability and plating adhesion and method for producing the same |
| US6628829B1 (en) * | 2000-08-08 | 2003-09-30 | Richard Jeffrey Chasen | Method and system for matching a surface color |
| JP2003228658A (en) * | 2002-02-05 | 2003-08-15 | Akira Aoki | Method for selling merchandise via internet |
| US6700668B2 (en) * | 2002-06-25 | 2004-03-02 | General Electric Company | Method of measuring a part with a wide range of surface reflectivities |
| NL1021182C2 (en) * | 2002-07-30 | 2004-02-03 | Xpar Vision B V | Analysis system and method for analyzing and controlling a production process for glass products. |
| DE10319770A1 (en) * | 2003-05-02 | 2004-12-09 | Koenig & Bauer Ag | Method for regulating the color density of a color applied by a printing press to a printing medium and device for regulating various parameters relevant for the printing process of a printing press |
| US7317504B2 (en) * | 2004-04-08 | 2008-01-08 | Asml Netherlands B.V. | Lithographic apparatus and device manufacturing method |
-
2005
- 2005-05-19 BE BE2005/0248A patent/BE1016591A3/en not_active IP Right Cessation
-
2006
- 2006-05-18 AU AU2006246999A patent/AU2006246999A1/en not_active Abandoned
- 2006-05-18 WO PCT/BE2006/000053 patent/WO2006122378A1/en active Application Filing
- 2006-05-18 US US11/920,644 patent/US20090169091A1/en not_active Abandoned
- 2006-05-18 EP EP06741304A patent/EP1899916A1/en not_active Ceased
- 2006-05-18 CA CA002607942A patent/CA2607942A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU2006246999A1 (en) | 2006-11-23 |
| EP1899916A1 (en) | 2008-03-19 |
| WO2006122378A1 (en) | 2006-11-23 |
| BE1016591A3 (en) | 2007-02-06 |
| US20090169091A1 (en) | 2009-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0452769B1 (en) | Monitoring printing and cutting quality in a production plant for making packages | |
| JP6560220B2 (en) | Method and apparatus for inspecting inspection system for detection of surface defects | |
| JP6902051B2 (en) | Machine vision methods and systems | |
| JPH11138654A (en) | Tire shape deciding apparatus and method for selecting tire | |
| WO2018066576A1 (en) | Appearance inspecting method | |
| RU2005122614A (en) | METHOD AND DEVICE FOR CHECKING BANKNOTES | |
| US20200047302A1 (en) | Machine system and control method | |
| JP2020169680A (en) | Device, method and program for detecting bolt fastening condition | |
| CA2607942A1 (en) | Method for performing a quality control on the processing of products and device applied thereby | |
| JP2019184380A (en) | Imaging device and inspection system using imaging device | |
| JP6049177B2 (en) | Sheet inspection equipment | |
| JP2005005619A (en) | Inspection device of film carrier tape for electronic component mounting, and method for confirming pattern failure | |
| JP6413243B2 (en) | Quality control system, quality control method, and program | |
| JP7359607B2 (en) | Vibration test analysis device and vibration test analysis method | |
| TWI592653B (en) | Optical film detection device and opticlal film detection method | |
| KR102015294B1 (en) | Method for inspecting coiling state, apparatus and system for executing the method | |
| KR101777849B1 (en) | Printing device for detecting printing error | |
| KR20140089200A (en) | Method of detecting defect and reflective optical inspection device using the same | |
| WO2015079937A1 (en) | Inspection device for sheet-shaped object | |
| JP4680659B2 (en) | Product tire appearance inspection method and product tire appearance inspection auxiliary device | |
| TW202310553A (en) | Motor controlling system for application in apparatus having roll-to-roll mechanism | |
| JP2011112430A (en) | Method and device for displaying inspection result of printing pattern | |
| KR102563230B1 (en) | AI Vision Fault Detection System | |
| JPS6112341A (en) | Apparatus for inspecting printed matter | |
| JP2680588B2 (en) | Print inspection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |
Effective date: 20130521 |