CN206627456U - A kind of web surface defects detection unit - Google Patents

Abstract

The utility model discloses a kind of web surface defects detection unit, the unit includes frame, blowing roller group, foreign body eliminating apparatus, flattening device, deviation correcting device, active traction roller group, wrinkle-removing apparatus, industrial camera, marking machine, winder, the detection unit is based on machine vision image detecting technique, before being detected, first pass through foreign matter removing, flattening, correction, smoothing wrinkle, so as to being the smooth and stable entrance detection zone of fabric, the detection unit can carry out on-line checking to web surface, not only increase the efficiency of web surface detection, and improve the accuracy of fabric testing result.

Description

A kind of web surface defects detection unit

Technical field

It the utility model is related to a kind of web surface defects detection unit.

Background technology

Quick with industrial 4.0 epoch pushes ahead, and manufacturing industry can march toward a brand-new epoch, many traditional industries How all suffer to the problem of the intelligent direction transformation with automated production manufacture, enterprise needs to carry out technological innovation, with up to To the long-range sustainable development of itself.The problem of textile fabric industry faces are same, especially in fabric quality context of detection, Past, enterprise went to see the defects of fabric using the mode of desk checking by the eyes of worker.The mode disadvantage of desk checking End is a lot, and subjectivity is big, and fatiguability, efficiency is low, and speed is slow (being less than 10 ms/min).Other domestic labour's relative deficiency, people Work cost continues the presentation of the problems such as surging, senior skilled worker's famine, and the recruitment that enterprise will be faced from now on is difficult and artificial The problem of cost is high also can increasingly protrude.

Machine vision technique introduces China in the beginning of this century, and early stage only such as prints paper money in high-end manufacturing field, partly led The sector applications such as body, with the continuous development of technology and the price reduction of equipment, this technology has been applied to all trades and professions, pole The earth promote it is traditional taking human as main manufacturing industry towards automation and intelligentized direction develop.Machine vision image detection Technology is used for the quality inspection of product, has following advantage：100% full inspection, never tired, examination criteria is strictly unified, different Product can realize that differentiation detects, high-speed and high-efficiency, while can establish digitized quality standard system etc..And desk checking The inferior position compared is that technical maturity is low with respect to desk checking, is a new technology after all, it is necessary to according to institute's application industry Technological requirement carry out perfect, final realize seamlessly is embedded into existing production technology.

And using machine vision image detecting technique detection apply fabric detection on difficult point be：1. fabric is in production During may surface adhesion have some foreign matters, such as the debris such as the end of a thread, this can be reported by mistake in machine vision image detection, it is believed that It is defect at this.2. buckling phenomena occurs in the possible out-of-flatness of the fabric of operation, wrong report so occurs；3. fabric is passing through Need to align during machine vision image detection, it is impossible to there is larger position deviation, otherwise can also influence final Detection results, And fabric is likely to occur skew in the process of running, so as to influence the accuracy of testing result.

Utility model content

Technical problem to be solved in the utility model is：A kind of web surface defects detection unit, the detection machine are provided Group can carry out on-line checking to web surface, not only increase the efficiency of web surface detection, and improve fabric detection As a result accuracy.

In order to solve the above technical problems, the technical solution of the utility model is：A kind of web surface defects detection unit,

Including frame；

For drawing the blowing roller group of fabric blowing, the blowing roller group is installed in the frame；

Foreign body eliminating apparatus, the foreign body eliminating apparatus are arranged in frame and are used to remove positioned at the downstream of blowing roller group Web surface foreign matter；

For the flattening device for making fabric be flattened on width, the flattening device be arranged in frame and positioned at foreign matter it is clear Except the downstream of device；

For carrying out the deviation correcting device of positioning and rectifying to fabric edge, the deviation correcting device is arranged in frame and positioned at flattening The downstream of device；

For drawing the active traction roller group of fabric operation, the active traction roller group is installed in the frame and is located at The downstream of deviation correcting device；

For to web surface heat the wrinkle-removing apparatus of smoothing wrinkle, the wrinkle-removing apparatus is installed in the frame and position In the downstream of active traction roller group；

For the industrial camera detected to web surface, the industrial camera is installed in frame and positioned at detection work , it is located in the frame at detection station and two spaced detection conveying rollers is set, between this two detection conveying roller Region constitute detection zone, web surface of the industrial camera alignment Jing Guo detection zone, be located in the frame Light compensating apparatus is provided with detection zone；The coding of triggering industrial camera shooting is provided with the frame at detection zone Device；

For the marking machine that there are the adjacent margins of defect to label to fabric, the marking machine is installed under detection station Trip；

For the winder wound to fabric, the winder is arranged at the downstream of marking machine.

As a kind of preferable scheme, the foreign body eliminating apparatus includes two hairbrush being arranged in frame, two hairs Brush is contacted with the positive and negative surface of fabric, and sucktion fan is provided with the frame, and the pump orifice of the induced-draught fan is two and difference Correspond the contact position of two hairbrush and fabric.

As a kind of preferable scheme, the flattening device includes the pedestal being fixed in frame, is rotated on the pedestal Nip rolls is installed, two sections of oppositely oriented and thread segments are provided with the nip rolls.

As a kind of preferable scheme, deviation correcting device includes the deviation-rectifying bracket that is fixed in frame, on the deviation-rectifying bracket It is fixed with left support abutment and right support abutment, level is slidably fitted with left slide and right slide, institute respectively on the left support abutment and right support abutment It is symmetrical to state glide direction and the glide direction of right slide of left slide, the glide direction of left slide and the conveying direction of fabric Between intersect it is at an acute angle, the left rotary shaft being vertically arranged and right spindle, the left side are rotatablely equipped with left slide and right slide respectively Correction roller seat is fixed with rotating shaft and right spindle, at least two deviation rectification rollers, the left branch are rotatablely equipped with the correction roller seat Correction drive device with left slide or the drive connection of right slide, the left side on the deviation-rectifying bracket are installed on seat or right support abutment Right both sides are separately provided for detecting the deflection correction sensor of fabric edge.

As a kind of preferable scheme, the deflection correction sensor is ultrasonic sensor, infrared ray sensor, photoelectric sensing One kind in device.

As a kind of preferable scheme, the wrinkle-removing apparatus includes being rotatablely installed in the heating roller in frame and rubber pressure Roller, the heating roller and rubber roller cooperate, and fabric passes through between heating roller and rubber roller, set in the frame There is the humidifier tube at cooperation between alignment heating roller and rubber roller.

As a kind of preferable scheme, the upstream of the blowing roller group is additionally provided with flare-out provision, the flare-out provision bag Include identical structure and roller group is evened up on symmetrical Zola's plain-barreled roll group and the right side, roller group difference position is evened up on Zola's plain-barreled roll group and the right side In the left and right sides of the fabric of operation, Zola's plain-barreled roll group includes about two stacked and parallel Zola's plain-barreled rolls, the Zola Rollers turn is installed on the left roller seat in frame, and the upper end of Zola's plain-barreled roll is to bottom right deflection.

After employing above-mentioned technical proposal, effect of the present utility model is：The detection unit is in the running of fabric First pass through foreign body eliminating apparatus to remove the foreign matter on the positive and negative surface of fabric, so can be reduced foreign matter and industrial camera is examined The influence of the result of survey, then fabric is flattened using flattening device, it is ensured that fabric expansion conveying, avoid occurring in course of conveying Fold is imagined, is also convenient for industrial camera and is detected；Then the edge of fabric is rectified a deviation using deviation correcting device, convenient industry The photo shot during camera calibration makes the contrasting detection of industrial camera quicker, using wrinkle-removing apparatus to web surface it Heating, removes existing fold, so makes the testing result of industrial camera more accurate.And the detection of industrial camera is to pass through volume Code device triggering, encoder press fabric and moved with it, and produce the impulse waveform in cycle, this is exactly trigger signal, by encoder Follow fabric move caused by trigger signal be directly connected to control industrial camera to be synchronously exposed and take pictures in industrial camera, and compile The fabric position for each photo that code device can also be shot to industrial camera in itself encodes, the photo pair for shooting industrial camera The unique positions of fabric are answered, so facilitate follow-up marking machine automatic labeling, and marking machine is currently used labeling device, it is tied Structure is clear, and so, the detection unit detects more efficient, and on-line checking can be achieved and label, and the knot detected Fruit is more accurate, and rate of false alarm is low.

Again because the foreign body eliminating apparatus includes being arranged at two hairbrush in frame, two hairbrush and fabric it is positive and negative Surface is contacted, and sucktion fan is provided with the frame, and the pump orifice of the induced-draught fan is two and corresponds two hairs respectively Brush and the contact position of fabric, the foreign body eliminating apparatus structure is more reasonable, and fabric is in lasting running under power, and hairbrush and fabric Contact can understand the foreign matter on surface, while be aspirated using sucktion fan, be pumped the foreign matter on hairbrush, different so as to improve The effect that thing is removed.

Again because the upstream of the blowing roller group is additionally provided with flare-out provision, it is identical and left that the flare-out provision includes structure Roller group is evened up on the symmetrical Zola's plain-barreled roll group in the right side and the right side, and roller group is evened up respectively positioned at the fabric run in Zola's plain-barreled roll group and the right side The left and right sides, Zola's plain-barreled roll group is stacked including about two and parallel Zola's plain-barreled roll, Zola's rollers turn are installed on On left roller seat in frame, the upper end of Zola's plain-barreled roll is to bottom right deflection, because this is provided with the flare-out provision, the left side of the fabric Edge is passed through between two stacked up and down Zola's plain-barreled rolls, and the right hand edge of fabric is worn between evening up roller from two stacked up and down right sides Cross, so, the pulling force that fabric can be by Zola's plain-barreled roll to the left, also the pulling force of roller to the right can be evened up by the right side, so that fabric is drawn Flat, the flare-out provision is rational in infrastructure, and cost is low, evens up effect, and fabric is after the flare-out provision is evened up in advance Just enter in blowing roller group, fabric can be avoided to occur fold because being squeezed surface irregularity before blowing roller group and show As.

Again because deviation correcting device includes the deviation-rectifying bracket that is fixed in frame, be fixed with the deviation-rectifying bracket left support abutment and Right support abutment, level is slidably fitted with left slide and right slide, the slip of the left slide respectively on the left support abutment and right support abutment Direction and the glide direction of right slide are symmetrical, are intersected between the glide direction of left slide and the conveying direction of fabric sharp The left rotary shaft being vertically arranged and right spindle, the left rotary shaft and right spindle are rotatablely equipped with angle, left slide and right slide respectively On be fixed with correction roller seat, be rotatablely equipped with least two deviation rectification rollers, the left support abutment or right support abutment on the correction roller seat On correction drive device with left slide or the drive connection of right slide is installed, the left and right sides on the deviation-rectifying bracket is set respectively The deflection correction sensor for detecting fabric edge is equipped with, the deviation correcting device makes left slide and right cunning using driver driving of rectifying a deviation Seat slides, and so as to drive correction seat beat in the horizontal plane by left rotary shaft and right spindle, correction is fast and accurately.

In addition the invention also discloses a kind of web surface defects detection technique, the characterization processes are to running under power Fabric carries out on-line checking, and it comprises the following steps：

A, blowing roller group pulling face material and blowing are utilized；

B, dust suction is carried out to the tow sides of fabric and removes the foreign matter of web surface；

C, horizontal flattening is carried out to fabric；

D, the edge of fabric is positioned and rectified a deviation, the edge for constraining fabric is in same position all the time；

F, heating pressing is carried out to fabric；

G, web surface is continued to shoot using industrial camera, and light filling is carried out to the positive and negative surface of fabric；Using being pressed in The shooting of industrial camera, while the face captured by encoder record industrial camera are controlled on fabric with the encoder of fabric motion Discharge position；Prestored the standard fabric image of the fabric in industrial camera, the image to be analyzed and index plane of industrial camera shooting Material image is compared and does difference, when the difference of image to be analyzed and standard fabric image is more than given threshold, judges that this is treated Surface defect be present in analysis image；

H, using automatic marking machine to being determined as that the fabric edges of regions of defect labels；

I, fabric is wound using winder.

Further, between the angle between the shooting direction of the industrial camera and web surface is 45 ° -75 °.

Further preferably, in the step A in the characterization processes, blowing roller group first passes through before fabric is drawn and evens up place Reason；Heating pressing mode in step F is：Coordinate heating fabric using Electromechanic heating roller and rubber roller, and utilize humidifier tube Fabric is humidified.

After employing above-mentioned technical proposal, effect of the present utility model is：The characterization processes utilize industrial camera detection faces Material, and the foreign matter of web surface is first taken out before detecting, and to web surface flattening, correction and smoothing wrinkle, so that fabric Make surfacing and the cleaning of fabric by the shooting area of industrial camera, the edge of fabric determines all the time, so convenient industry Camera analysis contrast, improve the accuracy of the testing result of industrial camera.

And, so, should between being 45 ° -75 ° due to the angle between the shooting direction and web surface of the industrial camera Shooting angle can make the texture of web surface clearer, and defect is also easier to show, and the accuracy of detection is higher.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is the overall structure diagram of the utility model embodiment；

Fig. 2 is the structural representation of flare-out provision；

Fig. 3 is the operation principle schematic diagram of industrial camera；

Fig. 4 is the structural representation of nip rolls；

Fig. 5 is the side schematic view of deviation correcting device；

Fig. 6 is Fig. 5 top view；

Fig. 7 is the structural representation of wrinkle-removing apparatus；

In accompanying drawing：1st, plaiting heap；2nd, flare-out provision；2-1, Zola's plain-barreled roll (on)；2-2, Zola's plain-barreled roll (under)；2-3, left roller Seat；2-4, the right side even up roller (on)；2-5, the right side even up roller (under)；2-6, right roller seat；3rd, blowing roller group；4th, blowing variable-frequency motor；5、 Tension sensor；6th, foreign body eliminating apparatus；7th, nip rolls；7-1, left-hand thread section；7-2, right-hand thread section；8th, deviation correcting device；8-1、 Deviation-rectifying bracket；8-2, right support abutment；8-3, right slide；8-4, right spindle；8-5, deviation rectification roller；8-6, left support abutment；8-7, left slide, 8- 8th, left rotary shaft；8-9, correction drive device；8-10, correction roller seat；9th, main transmission variable-frequency motor；10th, active traction roller group；11、 Electromechanic heating roller；12nd, humidifier tube；13rd, rubber roller；14th, upper illuminator case；15th, back-illuminated lamp box；16th, artificial table for viewing sample；17th, paste Mark machine；18th, rolling baffle plate；19th, roller is wound；20th, rewinding variable-frequency motor；21st, misplace rewinding linear slider；22nd, misplace rewinding Pusher；23rd, frame；24th, detection zone；25th, rewinding core；26th, industrial camera；26-1, line scan camera；26-2, optics Camera lens；26-3, camera outer cover；27th, fabric；28th, encoder；29th, front light source；30th, back side light source；31st, conveying roller is detected； 32nd, conveying roller is detected.

Embodiment

The utility model is described in further detail below by specific embodiment.

As shown in Figures 1 to 7, a kind of web surface defects detection unit, the web surface defects detection unit can be used for The online defects detection of fabric 27, it is generally used in the technological process of production of spinning class fabric 27, yarn is weaved cotton cloth change by loom Into fabric, after being examined by fabric to wherein the defects of repaired namely mending, fabric 27 or semi-finished product at this moment, Again by a series of finishing process (including singe, cropping, braying, crabbing, drying, setting, pressing etc.) after processing i.e. For finished product, shipment can be packed after finally carrying out product inspection.The web surface defects detection unit can be used for the inspection of semi-finished product Survey, can be used for finished product fabric 27 and detect.

The detection unit includes frame 23；The installation that the frame 23 is used for whole unit parts supports, certainly, for list Only equipment, itself also there are single frame, such as the winder of subsequent descriptions.

For drawing the blowing roller group 3 of the blowing of fabric 27, the blowing roller group 3 is installed in the frame 23；The blowing Roller group 3 is driven by blowing variable-frequency motor 4, and blowing roller group 3 is the mature equipment in the production technology of fabric 27 conventional at present, is utilized Upper and lower two pressure rollers realize the pinch of fabric 27；And what blowing roller group 3 was drawn is fabric 27 in plaiting heap 1, fabric 27 is laminated In plaiting heap 1, and in order to avoid blowing roller group 3 occurs secondary impression (fold) when drawing fabric 27, make fabric as far as possible 27 expansion and smooth entrance blowing roller group 3, are provided with flare-out provision 2, as shown in Fig. 2 showing in figure in the upstream of blowing roller group 3 Anticipate the structure and principle of flare-out provision 2, the flare-out provision 2 includes identical structure and symmetrical Zola's plain-barreled roll group and the right side Roller group, Zola's plain-barreled roll group and the right left and right sides evened up roller group and be located at the fabric 27 of operation respectively are evened up, wherein, the left side Even up roller group include about two be stacked and parallel Zola's plain-barreled roll, Zola's rollers turn be installed on the left roller seat in frame 23 On 2-3, the upper end of Zola's plain-barreled roll describes to bottom right deflection for convenience, two Zola's plain-barreled rolls be respectively Zola's plain-barreled roll (on) 2-1 With Zola's plain-barreled roll (under) 2-2, the left side of fabric 27 from bottom to top by Zola's plain-barreled roll (under) 2-2 and Zola's plain-barreled roll (on) 2-1 it Between, such Zola's plain-barreled roll (under) 2-2 and Zola's plain-barreled roll (on) 2-1 generates a pulling force pulled to the left to fabric 27, together Reason, the right side even up roller group include about two be stacked and the parallel right side even up roller, the right side is evened up roller and is rotatablely installed in frame 23 On right roller seat 2-6 on, the upper end of roller deflection to left down is evened up on the right side, is described for convenience, it is respectively right drawing that roller is evened up on two right sides Plain-barreled roll (on) 2-4 and the right side even up roller (under) 2-5, the right side of fabric 27 from bottom to top by the right side even up roller (under) 2-5 and the right side even up Roller (on) between 2-4, such right side even up roller (under) 2-5 and the right side even up roller (on) 2-4 generates one to fabric 27 and leads to the right The pulling force of drawing, left and right are evened up roller and coordinated so that fabric 27 is evened up.

Foreign body eliminating apparatus 6, the foreign body eliminating apparatus 6 are arranged in frame 23 and used positioned at the downstream of blowing roller group 3 In the removing Superficial Foreign Body of fabric 27；In the present embodiment, aspirated using the principle of negative-pressure ward, make the tow sides of fabric 27 Small foreign matter siphons away, and the foreign body eliminating apparatus 6 includes two hairbrush being arranged in frame 23, two hairbrush and fabric 27 The contact of positive and negative surface, fabric 27 during operation some be not easy the foreign matter that suction is walked and just brushed away by hairbrush, the frame 23 On be provided with sucktion fan, the pump orifice of the induced-draught fan is two and corresponds two hairbrush contacts with fabric 27 respectively Place.Although the non-additional diagram of the structure, its structure is due to relatively easy and clear, according in the description of word and Fig. 1 The location of foreign body eliminating apparatus 6, those skilled in the art's can complete the installation of foreign body eliminating apparatus 6, completely can be with Realize the function that the Superficial Foreign Body of fabric 27 is removed.Between foreign body eliminating apparatus 6 and blowing roller group 3, still set in the present embodiment Tension sensor 5 is put, for monitoring the tension force of fabric 27, the tension sensor 5 is current sensors, extensive to use In coiled strip production, such as in the automated production of film, fabric 27, for controlling web tension.

For the flattening device for making fabric 27 be flattened on width, the flattening device is arranged in frame 23 and positioned at different The downstream of thing remove device 6；As shown in figure 4, the flattening device includes the pedestal being fixed in frame 23, turn on the pedestal It is dynamic that nip rolls 7 is installed, two sections of oppositely oriented and thread segments are provided with the nip rolls 7.Thread segment difference in both ends therein For left-hand thread section 7-1 and right-hand thread section 7-2, when fabric 27 runs around nip rolls 7, due to left-hand thread section when nip rolls 7 rotates 7-1 and right-hand thread section 7-2 is respectively acting on fabric 27, and fabric 27 can be made fabric 27 by combing effect power to the left and to the right Flatten again.

For carrying out the deviation correcting device 8 of positioning and rectifying to the edge of fabric 27, the deviation correcting device 8 is arranged in frame 23 and position In the downstream of flattening device；As shown in Figure 5 and Figure 6, deviation correcting device 8 includes the deviation-rectifying bracket 8-1 being fixed in frame 23, described It is fixed with deviation-rectifying bracket 8-1 on left support abutment 8-6 and right support abutment 8-2, the left support abutment 8-6 and right support abutment 8-2 horizontal sliding respectively Dynamic to be provided with left slide 8-7 and right slide 8-3, it is slidably matched is realized using the connected mode of guide rod and sliding sleeve.The left cunning Seat 8-7 glide direction and right slide 8-3 glide direction is symmetrical, and left slide 8-7 glide direction is defeated with fabric 27 Send and intersect between direction at an acute angle, the left rotary shaft 8-8 being vertically arranged is rotatablely equipped with respectively on left slide 8-7 and right slide 8-3 With right spindle 8-4, correction roller seat 8-10, correction roller seat 8-10 are fixed with the left rotary shaft 8-8 and right spindle 8-4 and passes through a left side Rotating shaft 8-8 and right spindle 8-4 is that the deflection on horizontal plane can be achieved, and at least two are rotatablely equipped with the correction roller seat 8-10 It is provided with deviation rectification roller 8-5, the left support abutment 8-6 or right support abutment 8-2 and left slide 8-7 or right slides 8-3 drive connections The left and right sides on correction drive device 8-9, the deviation-rectifying bracket 8-1 is separately provided for detecting the correction at the edge of fabric 27 Sensor.

Wherein, the deflection correction sensor is one kind in ultrasonic sensor, infrared ray sensor, photoelectric sensor.This In embodiment, deflection correction sensor is rectified a deviation from the photoelectric sensor of Dong electricity Yan Industries, Incs production.And entangle Inclined drive device 8-9 is driven using linear electric motors, is cut with scissors between the output shaft of the linear electric motors and left slide 8-7 or right slides 8-3 Connect, so as to realize correction.

The operation principle of this deviation correcting device 8 is：Fabric 27 on deviation rectification roller 8-5 when running, the left and right edges meeting of fabric 27 Detected by deflection correction sensor, when fabric 27 is offset, such as when fabric 27 is offset to the left, the correction of the left and right sides of fabric 27 Corresponding change can occur for the detection signal of sensor, so, by controlling linear electric motors to promote left slide 8-7 and right slide 8-3 is moved, so that correction roller seat 8-10 is according to beat clockwise in Fig. 6, so as to which fabric 27 will gradually rectify a deviation skew of turning right, Eventually through not sideslip in the detection of deflection correction sensor and the running of drive control fabric 27 of linear electric motors.Linear electric motors and Deflection correction sensor is current routine techniques, and the structure and control of motor and deflection correction sensor have bright on mechanical design handbook Really record, be known technology for art technology technical staff, be not described in detail again.

For drawing the active traction roller group 10 of the operation of fabric 27, the active traction roller group 10 is installed on the frame 23 Downstream upper and positioned at deviation correcting device 8；The structure of the active traction roller group 10 and blowing roller group 3 is essentially identical, is all by upper The pressure roller of lower setting pinches fabric 27 and realizes traction, passes through chain between one of active carry-over pinch rolls and main transmission variable-frequency motor 9 Bar drives.

For to the surface of fabric 27 heat the wrinkle-removing apparatus of smoothing wrinkle, the wrinkle-removing apparatus is installed in the frame 23 And positioned at the downstream of active traction roller group 10；As shown in fig. 7, the wrinkle-removing apparatus includes being rotatablely installed in the heating in frame 23 Roller and rubber roller 13, the heating roller and rubber roller 13 cooperate, and fabric 27 is between heating roller and rubber roller 13 By being provided with the humidifier tube 12 at cooperation, the heating roller between alignment heating roller and rubber roller 13 in the frame 23 The present embodiment use for Electromechanic heating roller 11, certainly, do not discharge other heating rollers, such as steam roll etc., the heating Pipe main function is that certain moisture is provided to fabric 27, and the smoothing wrinkle of instant noodle seasoning 27, the principle of the smoothing wrinkle is also similar to that fabric 27 The principle of pressing, when humidifier tube 12 preferably heats using the mode of water atomization, atomising head is provided with humidifier tube 12, is made Humidifying effect is more preferable, and the atomising head is current conventional structure, such as fog-spray nozzle when spraying agriculture agriculturally is usable.

For the industrial camera 26 detected to the surface of fabric 27, the industrial camera 26 is installed in frame 23 and position In detection station, as shown in figure 3, the industrial camera 26 includes line scan camera 26-1, optical lens 26-2 and camera outer cover 26-3, these are all the conventional configurations in current machine image identification field, are set in the frame 23 at detection station Two spaced detection conveying rollers 31,32, this two regions detected between conveying rollers 31,32 constitute detection zone 24, fabric 27 surface of the alignment of industrial camera 26 Jing Guo detection zone 24, wherein, the detection angles of industrial camera 26 are excellent Being located at 45-75 °, in the frame 23 at detection zone 24 for choosing is provided with light compensating apparatus；The front setting of general fabric 27 There is front light source 29, the back side sets back side light source 30, is provided with the industrial phase of triggering in the frame 23 at detection zone 24 The encoder 28 that machine 26 is shot；When fabric 27 is by two detection conveying roller 31,32, be pressed in encoder 28 above fabric 27 with With the motion of fabric 27, the impulse waveform in cycle is produced, this is exactly trigger signal, follows fabric 27 to move production encoder 28 Raw trigger signal is directly connected in line scan camera 26-1, and control camera, which is synchronously exposed, takes pictures, each triggering letter Number a line image is produced, entire image is uploaded to computer (industrial camera by camera after the image of specified line number is got 26, which are equipped with computer, carries out picture processing) handled, so as the high-speed motion of fabric 27 will produce a width paper web The image on 27 surfaces.The purpose of back side light source 30 is so that the defects of some hole classes, contrast was more obvious in the picture, just Area source 29 and line scan camera 26-1 position angle can be such that the surface defect of fabric 27 shows as far as possible, so Whole imaging system can be good at showing the surface defect of fabric 27, the table of a width paper web 27 that industrial camera 26 is shot Face image can is analyzed with the standard picture being pre-stored in the computer of industrial camera 26 and draws surface defect.This Kind analysis contrast can use existing machine vision technique completion at present.Encoder 28 can not only set out camera exposure, and And encoder 28 itself can complete the metering of fabric 27, so as to by the position of fabric 27 and 27 surface image of fabric one a pair Should, so facilitate marking machine to be labelled near defective locations.

For having the marking machine of defective adjacent margins labeling to fabric 27, the marking machine is installed on detection station Downstream；Marking machine conventional at present can be selected in the marking machine, such as the global Automation Co., Ltd's life in Longhai City of Shenzhen can be selected The full automatic planar labelling machine 17 of production is completed, because the length of fabric 27 between labeling position and the encoder 28 of marking machine is one It is fixed, for example, the length of fabric 27 between the two is 1 meter, then when industrial camera 26 detects there is individual defect at 2720 meters of fabric, Now encoder 28 can determine fabric 27 rerun 1 meter when, show that defective locations have been had arrived near marking machine, this Sample, marking machine can be carried out labeling action, the edge of fabric 27 labeling and need not be very accurate, it is only necessary to adapt near this It is defective, because the final fabric 27 also needs to carry out manual repair or cutting.

In the upstream of marking machine, artificial table for viewing sample 16 also can be set, it is convenient manually to see sample, on artificial table for viewing sample 16 just Face is provided with upper illuminator case 14, and the back side is provided with back-illuminated lamp box 15；Enough light sources are provided.

For the winder wound to fabric 27, the winder is arranged at the downstream of marking machine.The winder For the current conventional winding device of fabric 27, as shown in figure 1, the winder includes winding frame, installed in the winding frame by The winding roller 19 that rewinding variable-frequency motor 20 drives, rewinding core 25 are pressed between rewinding roller and another driven roller, Rewinding core 25 is rotated by the frictional force between rewinding roller, and so as to which fabric 27 be rolled, the side of winding frame is provided with Rolling baffle plate 18.The winder can also realize dislocation rewinding simultaneously, and in Fig. 1, whole winding frame can pass through the rewinding straight line that misplaces Sliding block 21 is slidably mounted in frame 23 along the axis direction of rewinding core 25, and realizes whole winder by rewinding pusher The axial movement of frame, rewinding pusher are equally driven using linear electric motors, and winding frame axially reciprocating realizes snakelike rewinding. Certainly, if need not enter line misregistration rewinding, the dislocation rewinding for closing system is set, and dislocation rewinding pusher 22 will can be received entirely Expect that device is placed in the middle, so as to realize neat rewinding.Tension sensor 5 is equally also provided between winder and labelling machine 17, should Tension sensor 5 is used for monitoring the tension force of fabric 27 in the downstream of active traction roller group 10, by two tension sensors 5, coordinates master The speed of dynamic traction roller group 10, blowing roller group 3 and winder, reasonably controls tension force, avoids the transition towing deformation of fabric 27, shadow Ring the result of defect inspection.

In addition, the present embodiment also discloses a kind of surface defects detection technique of fabric 27, the characterization processes are to running under power Fabric 27 carry out on-line checking, it comprises the following steps：

A, fabric 27 and blowing are drawn using blowing roller group 3；

B, dust suction is carried out to the tow sides of fabric 27 and removes the foreign matter on the surface of fabric 27；

C, horizontal flattening is carried out to fabric 27；

D, the edge of fabric 27 is positioned and rectified a deviation, the edge of constraint fabric 27 is in same position all the time；

F, heating pressing is carried out to fabric 27；

G, the surface of fabric 27 is continued to shoot using industrial camera 26, and light filling is carried out to the positive and negative surface of fabric 27；Profit The encoder 28 moved with being pressed on fabric 27 with fabric 27 controls the shooting of industrial camera 26, while the encoder 28 record work The position of fabric 27 captured by industry camera 26；Prestored the image of standard fabric 27 of the fabric 27 in industrial camera 26, industrial phase The image to be analyzed that machine 26 is shot compared with the image of standard fabric 27 and does difference, when image to be analyzed and standard fabric 27 The difference of image is more than given threshold, judges surface defect be present in the image to be analyzed；

H, using automatic marking machine to being determined as that the edges of regions of fabric 27 of defect labels；

I, fabric 27 is wound using winder.

Further, between the angle between the shooting direction of the industrial camera 26 and the surface of fabric 27 is 45 ° -75 °.

In step A in the characterization processes, blowing roller group 3 first passes through before fabric 27 is drawn and evens up processing；In step F Heating pressing mode be：Coordinate heating fabric 27 using Electromechanic heating roller 11 and rubber roller 13, and it is right using humidifier tube 12 Fabric 27 humidifies.

The characterization processes can realize the monitoring technique based on above-mentioned detection unit using above-mentioned detection unit, and The technique is set to possess the advantages of same.

The variable-frequency motor mentioned in the present embodiment, linear electric motors, sensor etc. were current routine techniques, in 2008 The 28th printing in the 5th edition, Beijing in April《Mechanical design handbook the 5th edition》In it is detailed disclose cylinder, motor and The concrete structure and principle of other transmission mechanisms and other designs, belong to prior art, its structure was cheer and bright, in 2015 Published by Chemical Industry Press within 01 day 07 month《Motor drives and speed governing》In book the control for describing motor also detailed with And travel switch, therefore, circuit, gas circuit connection are all clear.

Embodiment described above is only the description to preferred embodiment of the present utility model, not as to the utility model The restriction of scope, on the basis of the utility model design spirit is not departed from, what technical solutions of the utility model were made is various Deformation and transformation, it all should fall into the protection domain that claims of the present utility model determine.

Claims (7)

1. A kind of 1. web surface defects detection unit, it is characterised in that：

   Including frame；

   For drawing the blowing roller group of fabric blowing, the blowing roller group is installed in the frame；

   Foreign body eliminating apparatus, the foreign body eliminating apparatus are arranged in frame and are used to remove fabric positioned at the downstream of blowing roller group Superficial Foreign Body；

   For the flattening device for making fabric be flattened on width, the flattening device is arranged in frame and removes dress positioned at foreign matter The downstream put；

   For carrying out the deviation correcting device of positioning and rectifying to fabric edge, the deviation correcting device is arranged in frame and is located at flattening device Downstream；

   For drawing the active traction roller group of fabric operation, the active traction roller group is installed in the frame and positioned at correction The downstream of device；

   For to web surface heat the wrinkle-removing apparatus of smoothing wrinkle, the wrinkle-removing apparatus is installed in the frame and positioned at master The downstream of dynamic traction roller group；

   For the industrial camera detected to web surface, the industrial camera is installed in frame and is located at detection station, Two spaced detection conveying rollers, this two areas detected between conveying rollers are set in the frame at detection station Domain constitutes detection zone, web surface of the industrial camera alignment Jing Guo detection zone, positioned at detection in the frame Light compensating apparatus is provided with region；The encoder of triggering industrial camera shooting is provided with the frame at detection zone；

   For the marking machine that there are the adjacent margins of defect to label to fabric, the marking machine is installed on the downstream of detection station；

   For the winder wound to fabric, the winder is arranged at the downstream of marking machine.
2. A kind of 2. web surface defects detection unit as claimed in claim 1, it is characterised in that：The foreign body eliminating apparatus bag Two hairbrush being arranged in frame are included, two hairbrush are contacted with the positive and negative surface of fabric, and suction air is provided with the frame Machine, the pump orifice of the induced-draught fan are two and correspond the contact position of two hairbrush and fabric respectively.
3. A kind of 3. web surface defects detection unit as claimed in claim 2, it is characterised in that：The flattening device includes solid Due to being rotatablely equipped with nip rolls on the pedestal in frame, the pedestal, be provided with the nip rolls two sections it is oppositely oriented and Thread segment.
4. A kind of 4. web surface defects detection unit as claimed in claim 3, it is characterised in that：Deviation correcting device includes being fixed on Deviation-rectifying bracket in frame, is fixed with left support abutment and right support abutment on the deviation-rectifying bracket, on the left support abutment and right support abutment respectively Level is slidably fitted with left slide and right slide, and the glide direction and the glide direction of right slide of the left slide are symmetrical, Intersect at an acute angle between the glide direction of left slide and the conveying direction of fabric, be rotatablely equipped with respectively on left slide and right slide The left rotary shaft and right spindle being vertically arranged, correction roller seat is fixed with the left rotary shaft and right spindle, is turned on the correction roller seat It is dynamic that at least two deviation rectification rollers are installed, it is provided with what is be connected with left slide or right slide on the left support abutment or right support abutment Correction drive device, the left and right sides on the deviation-rectifying bracket are separately provided for detecting the deflection correction sensor of fabric edge.
5. A kind of 5. web surface defects detection unit as claimed in claim 4, it is characterised in that：The deflection correction sensor is super One kind in sonic sensor, infrared ray sensor, photoelectric sensor.
6. A kind of 6. web surface defects detection unit as claimed in claim 5, it is characterised in that：The wrinkle-removing apparatus includes turning The dynamic heating roller and rubber roller being installed in frame, the heating roller and rubber roller cooperate, fabric from heating roller and Pass through between rubber roller, the humidifier tube at cooperation between alignment heating roller and rubber roller is provided with the frame.
7. A kind of 7. web surface defects detection unit as claimed in claim 6, it is characterised in that：The upstream of the blowing roller group It is additionally provided with flare-out provision, the flare-out provision includes identical structure and roller group is evened up on symmetrical Zola's plain-barreled roll group and the right side, Zola's plain-barreled roll group and right roller group of evening up include two positioned at the left and right sides of the fabric of operation, Zola's plain-barreled roll group respectively Stacked and parallel Zola's plain-barreled roll, Zola's rollers turn are installed on the left roller seat in frame up and down, the upper end of Zola's plain-barreled roll To bottom right deflection.