CN103063679A - On-line detection principle and method for defect of photic type holes of electronic aluminum foil - Google Patents
On-line detection principle and method for defect of photic type holes of electronic aluminum foil Download PDFInfo
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- CN103063679A CN103063679A CN2012105702730A CN201210570273A CN103063679A CN 103063679 A CN103063679 A CN 103063679A CN 2012105702730 A CN2012105702730 A CN 2012105702730A CN 201210570273 A CN201210570273 A CN 201210570273A CN 103063679 A CN103063679 A CN 103063679A
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Abstract
The invention discloses an on-line detection principle and method for a defect of photic type holes of electronic aluminum foil based on video picture processing techniques. A detection system constructed according to the on-line detection principle and method for the defect of the photic type holes of the electronic aluminum foil is composed of an upper computer, a lower computer and an image collector. The upper computer is a master controller of the detection system, the lower computer is used for receiving operational orders, detecting the length of running electronic aluminium foil, and communicating with the upper computer, and the image collector is composed of a plate light source, a camera obscura, a sealing light mechanism and a video camera. The image collector is arranged between a foil collector and an electronic aluminium foil manufacturing device. When a foil slice with the defect of photic type holes is through the image collector, light of the plate light source irradiates to the video camera in the camera obscura through defective holes, after a facula image is shot by the video camera, the upper computer used for processing real-time images is triggered to response, when a defective image is displayed and stored, length information between the defect and the head of a volume is recorded, and a sound-light alarm is sent to a device operator.
Description
Technical field
The present invention relates to electric aluminum foil production equipment field, relate in particular to electric aluminum foil manufactured goods light-transmission type hole defect detection system.
Background technology
Described electric aluminum foil production equipment refers in particular to electrode foil for aluminum electrolytic capacitors (being called for short electric aluminum foil or paillon foil) production equipment special.Dissimilar according to the paillon foil manufactured goods, the electric aluminum foil production equipment is divided into etched foil production equipment (abbreviation etching apparatus) and Waste Acid From Hua Cheng Foil production equipment (abbreviation formation device).Etched foil production is the preceding working procedure that Waste Acid From Hua Cheng Foil is produced.The used starting material of etching apparatus are the former paper tinsels of electric aluminum foil, and etched foil is the manufactured goods of etching apparatus.Formation device is take etched foil as starting material, and the manufactured goods of formation device are Waste Acid From Hua Cheng Foils.Etched foil and Waste Acid From Hua Cheng Foil are referred to as electrode foil for aluminum electrolytic capacitors.
In the electric aluminum foil production run, because starting material itself or production equipment, production technology, can be at some light-transmission type hole defect of manufactured goods formation.This light-transmission type hole defect is serious to the harm of the quality of electric aluminum foil manufactured goods, require in time to find and record paillon foil manufactured goods in the particular location that occurs of existing whole defectives and defective.This patent is not discussed the formation mechanism of this type of defective, does not study and how to eliminate this defective, only relates to the know-why and the method that how to detect and record these defectives.
In electric aluminum foil production run before this, not yet there are any device or technology that the light-transmission type hole defect of paillon foil manufactured goods is detected and record.Principle of the present invention and method are in the proposition that still belongs to the first time of electric aluminum foil production field.
Summary of the invention
The object of the invention is to propose a kind of the realization electric aluminum foil light-transmission type hole defect is carried out principle and the method that real-time online detects, and a kind of embodiment of that set up according to this principle and method, the network edition detection system that can be simultaneously 5 etched foil production equipments be detected is provided.This electric aluminum foil light-transmission type hole defect real-time online detection system based on video image processing technology, although for the development of etched foil production equipment, conversion just can be used for Waste Acid From Hua Cheng Foil production equipment or paillon foil rewinding equipment a little.Both can be used for corroding and changing into manufacturing and designing of new equipment, also can be used for the technological transformation of existing equipment.
The technical scheme of principle of the present invention and method and realization is as follows:
Increase a new station at original electric aluminum foil production equipment, the purpose of newly-increased station is the electric aluminum foil of making to be carried out real-time online detect, in order to find and record and examined whole light-transmission type hole defects that may exist in the paillon foil.This new station is called as detection system.It mainly is made of host computer, slave computer, image acquisition device three parts.
Described host computer can be the universal type industrial controller, can be common desktop PC also, is placed in the workshop pulpit.Host computer is the master controller of detection system, all operations of being responsible for detection system and display interface, with the communicating by letter and the processing of coordination, paillon foil defect image and storage etc. of slave computer.Except underlying hardware the device and operating system of necessity, this computing machine also is equipped with image pick-up card and driver, data base administrator and electric aluminum foil light-transmission type hole defect detection system application program.
Described slave computer is made of universal computer on-slice.The operational order, the reception that are used for accepting from the electric aluminum foil manufacturing equipment communicate from the meter long pulse of foil closing machine and with host computer.Slave computer is installed in the foil closing machine operation dish.
Described image acquisition device is made of flat-plate light source, camera bellows, envelope optical mechanism and video frequency pick-up head, is placed between electric aluminum foil production equipment and the foil closing machine.Flat-plate light source is combined by many white fluorescent tubes usually, also can adopt commercially available White LED flat-plate light source manufactured goods.Camera bellows is the rectangular parallelepiped cavity of an opened upper end, at the unlimited position of cavity device envelope optical mechanism.Camera bellows is pasted black flocking class soft material with sheet metal or plastic plate manufacturing, cabinet wall.The video camera head unit is in the camera bellows bottom, and cam lens is upwards aimed at the formed rectangle perforate of envelope optical mechanism, is examined paillon foil and passes through from described rectangle perforate top, and the paillon foil top covers flat-plate light source.
When the electric aluminum foil process image acquisition device of light-transmission type hole defect was arranged, the light of flat-plate light source will see through the hole of being examined on the paillon foil and impinge upon on the camera.The defective light spot image that camera photographs is sent to host computer immediately.After the printing opacity hole image that host computer is taken the photograph camera is analyzed and stored, in time send warning to device operator.Host computer is also recorded defective is rolled initial point apart from paper tinsel length information in the storage defect image.After this roll-leaf sheet was made, host computer generated the management information such as production wire size, date of manufacture and time, paillon foil reel number automatically, was archived in together in the database for future reference with the whole defect information that record.
The detection station that increases newly and former foil closing system have realized slitless connection.Detection system need not to increase new switch or button at foil closing machine operation panel, and the method for operating of foil closing machine and operation requirements are just like the past.All testing process is finished automatically, does not therefore need the employee is carried out complicated training.Unique different be to have increased a printing opacity defects detection alarm buzzer newly.After detection system detected the printing opacity defective, the newly-increased alarm buzzer of foil closing machine can continue to ring, until till the operator carries out human intervention to it.
For the etching apparatus of rolling speed very fast (2.5m/min-3.0m/min), mechanical precision higher (paillon foil is no more than 2mm in the random amplitude of oscillation of foil closing machine front left and right), image acquisition device can directly be placed on the ground.Formation device for rolling speed slow (1.5m/min-2.5m/min), mechanical precision lower (the random amplitude of oscillation of paillon foil surpasses 5mm), image acquisition device need to be installed on the foil closing machine correction dolly, guarantees that by the original deviation-rectifying system of foil closing machine paillon foil is in the center all the time in camera bellows.
Detection system has standalone version and two kinds of forms of the network edition.The corresponding slave computer of host computer and an image acquisition device be the standalone version detection system, be generally used for paillon foil rewinding equipment.A host computer is connected with N image acquisition device with N platform (N 〉=2) slave computer with vision cable by the RS485 bus, employing follow procuratorial organ's formula to N platform production equipment when the foliation sheet detects, then consist of network edition detection system, be generally used for extensive paillon foil production scene.
Description of drawings
Fig. 1 is according to the constructed detection system structural representation that is used for etching apparatus of the present invention
Fig. 2 is image acquisition device camera bellows master, bow, left three-view diagram
Wherein, 1-etching apparatus, 2-seal envelope light groove, 10-video frequency pick-up head, 11-foot bolt about smooth roll, 9-before and after being examined paillon foil, 3-foil closing machine, 4-foil closing machine operation dish, 5-flat-plate light source, 6-camera bellows, 7-host computer, 8-
Embodiment
More explicit for the technical scheme that makes principle of the present invention and method and realization, lift an example that is used for the etched foil production equipment below with reference to accompanying drawing the present invention is described in further detail.Should be appreciated that implementation case described herein only is used for explaining principle of the present invention and method, the claim that is not intended to limit the present invention.
Fig. 1 is according to the constructed detection system structural representation that is used for etching apparatus of the present invention.Because the etching apparatus mechanical precision is higher, the random amplitude of oscillation in the left and right sides is less than 2mm in process of production for paillon foil, and this moment, the image acquisition device of detection system can be settled on the ground simply.Fig. 2 be a kind of through verification experimental verification image acquisition device camera bellows master, bow, left three-view diagram.
As shown in Figure 1 and Figure 2, examined paillon foil 2 from what etching apparatus 1 got off, be introduced into image acquisition device and enter again foil closing machine 3.Image acquisition device by flat-plate light source 5, camera bellows 6, envelope optical mechanism 8,9 and the video frequency pick-up head 10 of device in camera bellows consist of.In present case, flat-plate light source 5 is commercially available White LED flat-plate light source manufactured goods.Camera bellows 6 is the rectangular parallelepiped cavity of an opened upper end, at the unlimited position of cavity device envelope optical mechanism 8,9.The camera bellows casing is welded with plastic plate, and cabinet wall is pasted black flocking class soft material.Video frequency pick-up head 10 is installed in the camera bellows bottom, and cam lens is upwards aimed at envelope optical mechanism 8,9 formed rectangle perforates, is examined paillon foil 2 and passes through from described rectangle perforate top, and the paillon foil top covers flat-plate light source 5.
Remove the flat-plate light source 5 of image acquisition device camera bellows top, be placed on about camera bellows top two and seal in the light groove 9 examining paillon foil 2.Under normal circumstances, paillon foil should be deep into 8-10mm in the groove, and paillon foil will about the passing through of Parallel Symmetric in two envelope light grooves.The effect of envelope light groove 9 is to prevent that the light of flat-plate light source from walking around foil edge and entering camera bellows.
Paillon foil is during into and out of camera bellows, and two envelope smooth rolls 8 that are arranged on camera bellows 6 front and back upwards hold up paillon foil gently, and paillon foil forms about 20 ° cornerite at the envelope smooth roll.Paillon foil formed tension force in traveling process make paillon foil about remain tensioned state in the envelope light groove 9.8 front and back of envelope smooth roll envelope light action.If the picking-up insufficient height of envelope smooth roll 8 then may cause the not enough and then initiation printing opacity of paillon foil tensioning degree in camera bellows.Can regulate the height of the foot bolt 11 of camera bellows 6 bottoms this moment, and camera bellows 6 whole upwards jack-up are got final product.
Do not have the light-transmission type hole defect normally examined paillon foil 2 through image acquisition device the time, the camera photo-sensitive cell is in the camera bellows 6 formed sealing details in a play not acted out on stage, but told through dialogues, and video frequency pick-up head 10 is sent in the vision signal of host computer 7 image pick-up cards only has the extremely low photo-sensitive cell background noise of amplitude.Corresponding therewith, what the light-transmission type hole defect arranged is improper when being examined paillon foil 2 through image acquisition device, and the light of flat-plate light source 5 will see through the hole of being examined on the paillon foil 2 and impinge upon on the video frequency pick-up head 10.The printing opacity hole forms the higher hot spot video signal of brightness at the camera photo-sensitive cell.
In the electric aluminum foil light-transmission type hole defect detection system application program of detection system host computer 7 interior installations, be provided with a video signal threshold value.The video signal that is lower than this threshold value is regarded as camera photo-sensitive cell background noise.The corresponding paillon foil 2 of being examined of video signal of background noise is only arranged, and detection system is judged to be normal zero defect paillon foil with it.The light spot image that defective paillon foil forms, the amplitude of its video signal is higher than the threshold value of setting.Be higher than the corresponding paillon foil 2 of being examined of video signal of threshold value, detection system is judged to be the defectiveness paillon foil with it.
When the defective light spot image that video frequency pick-up head 10 photographs sends host computer 7 to, owing to containing the higher luminance signal of level magnitude in the video signal that hot spot is arranged, the high brightness hot spot picture signal that surpasses setting threshold triggers 7 pairs of these printing opacity hole images of host computer and analyzes and store, and in time sends warning to device operator.Host computer 7 is also recorded slave computer (being installed in the foil closing machine operation dish 4) this defective that sends and is rolled the length information of initial point apart from paper tinsel in the storage defect image.
In process of production, detection system continues to shoot with video-corder down and examined the whole defect information that exist on the paillon foil 2 without omitting every one-inch paillon foil of ground Real-Time Monitoring through image acquisition device.After every roll-leaf sheet was made, host computer 7 generated production wire size, date of manufacture and the management information such as time, paillon foil reel number automatically, is archived in together in the database for future reference with the whole defect information that record.
A complete sense cycle approximately only needs about 0.5 second time to finish.For the etching apparatus of foil closing locomotive speed≤3.0m/min, in the complete sense cycle, examined the paillon foil 0.025m that in camera bellows, only advanced.Usually camera bellows is of a size of about 0.3m in the paillon foil working direction, therefore, any one specified point on being examined paillon foil 2, its in camera bellows, continue to advance during this period of time in, detection system can be carried out 12 times to it and be detected.
If distribute to 12 production equipments these 12 testing processes are regular, just can build the network edition detection system that 12 slave computers of 1 PC control are finished 12 production equipments are detected simultaneously.To avoid undetected situation in order to allow some leeway in detection time, in present case, 1 host computer is only controlled 5 slave computers, in the mode of patrolling and examining 5 corrosion production equipments is detected.
The detection system of the network edition, the hardware device utilization factor is high, and cost is low, is applicable to the more scale electric aluminum foil manufacturing enterprise of production line.
Should be understood that, to those skilled in the art, thereby should be easy to according to the above description that change or conversion consist of close or similar detection system to above-mentioned case study on implementation in addition.And all these changes and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. one kind based on online principle and the method that detects of the electric aluminum foil light-transmission type hole defect of video image processing technology, it is characterized in that setting up a computer intelligence detection system, described intelligent checking system is made of three parts such as host computer, slave computer and image acquisition devices.
2. the host computer of detection system claimed in claim 1, it is the master controller of detection system, it is characterized in that, described host computer is industrial control computer or personal computer normally, except underlying hardware the device and operating system of necessity, this computing machine also is equipped with video capture card and driver, data base administrator and electric aluminum foil light-transmission type hole defect detection system application program.
3. the slave computer of detection system claimed in claim 1, it is characterized in that, described slave computer is made of universal computer on-slice, and the operational order, the reception that are used for accepting from the electric aluminum foil manufacturing equipment communicate from the meter long pulse of foil closing machine and with host computer claimed in claim 2.
4. the image acquisition device of detection system claimed in claim 1, consisted of by flat-plate light source, camera bellows, envelope optical mechanism and video frequency pick-up head, it is characterized in that described flat-plate light source can be combined by many white fluorescent tubes, also can adopt commercially available White LED flat-plate light source manufactured goods; Described camera bellows is the rectangular parallelepiped cavity of an opened upper end, and at the unlimited position of cavity device envelope optical mechanism, camera bellows is pasted black flocking class soft material with sheet metal or plastic plate manufacturing, cabinet wall; Described video frequency pick-up head is installed in the camera bellows bottom, and cam lens is upwards aimed at the formed rectangle perforate of envelope optical mechanism, and tested paillon foil passes through from described rectangle perforate top, and the paillon foil top covers flat-plate light source.
5. the envelope optical mechanism of image acquisition device claimed in claim 4, it is characterized in that, left and right directions (for referencial use take the paillon foil direct of travel) is groove structure, and the bonding black flocking of groove inwall class soft material is examined foil edge and is deep in the groove parallel with paillon foil and in groove and at the uniform velocity passes through; In the front and back of paillon foil direct of travel side an envelope smooth roll is set respectively, is examined paillon foil and hold and mistake at the envelope smooth roll, the envelope smooth roll is made with stainless steel material or stupalith.
6. the image acquisition device of detection system claimed in claim 4, be further characterized in that, described image acquisition device is placed between foil closing machine and the electric aluminum foil production equipment, and image acquisition device can directly land placement, also can be installed on the foil closing machine by certain mechanism.
7. detection principle claimed in claim 1 and method, it is characterized in that, examined paillon foil when the image acquisition device claimed in claim 4 when what the light-transmission type hole defect arranged, the light-transmission type hole that the light of flat-plate light source sees through on the paillon foil shines on the video frequency pick-up head that is installed in the camera bellows, and printing opacity hole hot spot forms the higher hot spot video signal of brightness at the camera photo-sensitive cell.
8. detection principle claimed in claim 1 and method, it is characterized in that, be provided with a video signal threshold value in the electric aluminum foil light-transmission type hole defect detection system application program of in the host computer of detection system claimed in claim 2, installing, the video signal that is lower than this threshold value is regarded as camera photo-sensitive cell background noise, the corresponding paillon foil of being examined of video signal of background noise is only arranged, and detection system is judged to be normal zero defect paillon foil with it; The amplitude of the hot spot video signal that defective paillon foil forms is higher than the threshold value of setting, is higher than the corresponding paillon foil of being examined of hot spot video signal of threshold value, and detection system is judged to be the defectiveness paillon foil with it.
9. detection principle claimed in claim 1 and method, it is characterized in that, after described detection system detects high amplitude light spot image, be responsible for the host computer of real-time video image processing and make immediately response, defect image is processed, showing, in the time of the storage defect image, record defective and send sound and light alarm apart from the length information of volume head and to device operator, after every roll-leaf sheet is made, host computer generates the production wire size automatically, date of manufacture and time, the management information such as paillon foil reel number are archived in the database for future reference with whole defect information of recording together.
10. detection system claimed in claim 1 is further characterized in that, two kinds of forms of standalone version and the network edition can be arranged, the corresponding slave computer of host computer and an image acquisition device be the standalone version detection system, be generally used for paillon foil rewinding equipment; A host computer is connected with N image acquisition device with N platform (N 〉=2) slave computer with vision cable by the RS485 bus, adopt recycle design to N platform production equipment when the foliation sheet detects, then consist of network edition detection system, be generally used for extensive paillon foil production scene.
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| CN2012105702730A CN103063679A (en) | 2012-12-25 | 2012-12-25 | On-line detection principle and method for defect of photic type holes of electronic aluminum foil |
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| CN2012105702730A CN103063679A (en) | 2012-12-25 | 2012-12-25 | On-line detection principle and method for defect of photic type holes of electronic aluminum foil |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108772424A (en) * | 2018-07-17 | 2018-11-09 | 桂林电子科技大学 | The offline dynamic detection automatic control system of finished product aluminium foil plate shape and its application method |
| CN108982517A (en) * | 2018-07-25 | 2018-12-11 | 天津中车风电叶片工程有限公司 | A kind of Barcelona wood detection device |
| CN109879089A (en) * | 2019-03-18 | 2019-06-14 | 乳源东阳光机械有限公司 | A kind of system and method for etched foil surface real time monitoring early warning and dedusting |
| CN112278775A (en) * | 2020-09-15 | 2021-01-29 | 广东英斯派克视觉科技有限公司 | Food and medicine aluminium foil surface flaw detection device |
| CN116730056A (en) * | 2023-08-15 | 2023-09-12 | 江苏铭丰电子材料科技有限公司 | Copper foil coiling mechanism of measurable defect |
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Application publication date: 20130424 |