CN109946312A - A kind of carpet surface Defect Detection device and flaw detection method - Google Patents
A kind of carpet surface Defect Detection device and flaw detection method Download PDFInfo
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- CN109946312A CN109946312A CN201910228423.1A CN201910228423A CN109946312A CN 109946312 A CN109946312 A CN 109946312A CN 201910228423 A CN201910228423 A CN 201910228423A CN 109946312 A CN109946312 A CN 109946312A
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- line scan
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- 238000001514 detection method Methods 0.000 title claims abstract description 102
- 230000007547 defect Effects 0.000 title claims abstract description 21
- 230000007704 transition Effects 0.000 claims abstract description 12
- 230000000630 rising effect Effects 0.000 claims abstract description 10
- 238000013459 approach Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 22
- 230000008439 repair process Effects 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 7
- 239000006247 magnetic powder Substances 0.000 claims description 6
- 238000003384 imaging method Methods 0.000 claims description 4
- 238000010408 sweeping Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 238000006467 substitution reaction Methods 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The invention discloses a kind of carpet surface Defect Detection devices, including rack, the unwinding device for unreeling carpet is provided in the rack, several transition deflector rolls and a detection support roller are provided in rack, the carpet that unwinding device unreels is wound on transition deflector roll and support measuring roll and is drawn off, carpet is detection faces in the outside cambered surface of support measuring roll, light source and line scan camera are provided in rack, the line scan camera and light source face, the shooting direction line of line scan camera is in the outside of detection faces, the distance between the shooting direction line and the closest approach of detection faces are less than the rising height of setting flaw point, the detection of carpet flaw may be implemented in the detection device, substitution manually saves manpower, improve detection efficiency.
Description
Technical field
The present invention relates to a kind of Defect Detection devices, while being detected using the Defect Detection device to carpet surface
Flaw detection method.
Background technique
In the production process of carpet, in fact it could happen that the defect of the surface blemishes such as yarn is thrown, and for the Surface testing mesh of carpet
Preceding there is no good detection devices and detection method, general since the detection of carpet and other fabrics still has some differences
Logical fabric is taken pictures since fabric texture is finer and smoother by surface of the industrial camera to fabric, then by the image of shooting with
Standard picture is compared, the difference both obtained, finally identifies whether that web surface has a flaw, however the decorative pattern of carpet and figure
Case is various, and the line of carpet woven is thicker, and three-dimensional sense is presented in the decorative pattern of carpet, and the flaw on carpet is usually to throw yarn
Flaw, and it is not stringent to the requirement of other color difference, it therefore, is taken pictures on blanket surface, is shone over the ground using common vision line scan camera
The texture of piece is not careful, compares and identify that difficulty is very big in this way, some flaws may be hidden as thrown yarn, Defect Detection knot
Fruit is also inaccurate.Therefore carpet does not carry out full inspection at present, and makes by the way of manually inspecting by random samples, and detection efficiency is extremely low, people
Work is at high cost.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of carpet surface Defect Detection device, which can
To realize the detection of carpet flaw, substitution manually saves manpower, improves detection efficiency.
Another technical problem to be solved by this invention is: providing a kind of carpet surface flaw detection method, the flaw
Detection method can go out the flaw of carpet surface with accurate detection, improve the accuracy of testing result.
In order to solve the first technical problem mentioned above, the technical scheme is that a kind of carpet surface Defect Detection device,
Including rack, it is provided with the unwinding device for unreeling carpet in the rack, several transition are provided in the rack and are led
Roller and a detection support roller, the carpet that the unwinding device unreels is wound on transition deflector roll and support measuring roll and is drawn off,
The carpet is detection faces in the outside cambered surface of support measuring roll, is provided with light source and line scan camera in the rack, the line
Scanning camera and light source face, the shooting direction line of the line scan camera are in the outside of detection faces, the shooting direction line with
The distance between closest approach of detection faces is less than the rising height of setting flaw point.
As a preferred solution, the support measuring roll is installed on micromatic setting, which adjusts support
Measuring roll sliding, the glide direction of the support measuring roll are vertical with shooting direction line.
As a preferred solution, the micromatic setting is two sets and is respectively arranged at the both ends of support measuring roll, institute
Stating micromatic setting includes the fixing seat being fixed in rack, is slidably fitted with adjustment seat in the fixing seat, the adjustment seat and fixation
It is provided with leadscrew-nut mechanism between seat, adjusting handle is provided on the leadscrew-nut mechanism or is connected with power device, institute
The both ends for stating support measuring roll are rotatablely installed in roller seat, which is fixed in adjustment seat.
As a preferred solution, the adjusting handle is handwheel with a scale.
As a preferred solution, the line scan camera is installed in the rack by angle adjusting mechanism, institute
It states angle adjusting mechanism adjustment line scan camera and is swung around detection support roller axis direction is parallel to.
As a preferred solution, the angle adjusting mechanism includes beat crossbeam, the both ends setting of the beat crossbeam
There is fixed plate, two be symmetrically arranged in the fixed plate arc-shaped hole, the fixed plate is by being constrained in consolidating in arc-shaped hole
Determine screw to be fixed on the rack.
As a preferred solution, the detection device further includes manual repair platform, which is set to ground
On the running route of blanket.
As a preferred solution, the unwinding device includes swinging two rotating arms being installed in rack, this two
Be provided with lifting cylinder between a rotating arm and rack, between two rotating arms on be provided with gas expansion shaft, the both ends of the gas expansion shaft
It is installed on rotating arm by safety chuck, connects magnetic powder cluth on one of safety chuck.
After above-mentioned technical proposal, effect of the invention is: due to being provided in the rack for unreeling carpet
Unwinding device, be provided with several transition deflector rolls and a detection support roller in the rack, what the unwinding device unreeled
Carpet is wound on transition deflector roll and support measuring roll and is drawn off, and the carpet is detection in the outside cambered surface of support measuring roll
Face is provided with light source and line scan camera in the rack, the line scan camera and light source face, the bat of the line scan camera
The outside that direction line is in detection faces is taken the photograph, the distance between closest approach of the shooting direction line and detection faces is less than setting flaw point
Rising height, therefore, coiled carpet is drawn after unwinding device unreels, fabric wound on support measuring roll on formed
The detection faces of arc-shaped, line scan camera throws yarn flaw when shooting, if having on carpet, then when the flaw position enters
Light source will be blocked when detection faces, the image that line scan camera original in this way scans is the high light image of white, and has flaw
When, then occur the shade of black or spot in the image of white bloom, can thus detect the flaw position.
Again since the support measuring roll is installed on micromatic setting, which adjusts support measuring roll sliding, should
It supports the glide direction of measuring roll vertical with shooting direction line, utilizes the adjustable support measuring roll of the micromatic setting and shooting side
To the distance between line, thus the adjustable detection device can detect the rising height of flaw point, be suitble to different detections
It is required that.
It is installed in the rack due to the line scan camera by angle adjusting mechanism again, the angle adjusting mechanism
Adjustment line scan camera is swung around the axis direction for being parallel to detection support roller, the shooting of such and adjustable line scan camera
Direction line further adjusts detection angles, is suitble to different testing requirements.
Again since the unwinding device includes swinging two rotating arms being installed in rack, two rotating arms and rack
Between be provided with lifting cylinder, between two rotating arms on be provided with gas expansion shaft, the both ends of the gas expansion shaft pass through safety chuck and pacify
Loaded on rotating arm, magnetic powder cluth is connected on one of safety chuck, since the diameter of coiled carpet is bigger,
When feeding, by rotating arm to lower swing, then gas expansion shaft is removed and is inserted into the hollow paper tube of floor covering, then directly on ground
Upper rolling floor covering is mounted directly to gas expansion shaft on safety chuck, no longer needs to lift floor covering, safety chuck is risen with gas
The matched conventional structure of axis, after gas expansion shaft is mounted on safety chuck, then rotating arm is lifted, so that it may which realization unreels, and sharp
It can control unwinding tension with magnetic powder cluth.
Again since the detection device further includes manual repair platform, which is set to the running route of carpet
On, in this way, using manual repair platform manual amendment can be carried out to flaw position.
To solve above-mentioned second technical problem, the technical scheme is that a kind of carpet surface flaw detection method,
The detection method has used above-mentioned detection device, floor covering is unreeled by unwinding device and by running under power, carpet process
Defect Detection is carried out at detection support roller after detecting support roller；Using line scan camera and the light source being oppositely arranged to operation
Web surface carries out line surface sweeping imaging, and the shooting direction line of line scan camera be in the outside of detection faces, the shooting direction line and
The distance between closest approach of detection faces is less than the rising height of setting flaw point, when carpet surface does not have flaw, line scanning
Camera is imaged as white image, and when carpet surface has flaw point, which can block the light of light source, and line scans phase
There is black splotch in white image captured by machine.
Preferably, the detection support roller can on perpendicular to shooting direction line trim locations, line scan camera angle can
Shooting direction line is adjusted to swing.
After above-mentioned technical proposal, effect of the invention is: above-mentioned detection device is utilized in the detection method, should
Detection method has abandoned the detection method of current conventional fabric directly taken pictures by camera towards web surface, the detection method
Line surface sweeping imaging, the shooting of line scan camera are carried out to the web surface of operation using line scan camera and the light source being oppositely arranged
Direction line is in the outside of detection faces, and the distance between closest approach of the shooting direction line and detection faces is less than setting flaw point
Rising height, when carpet surface does not have flaw, line scan camera is imaged as white image, and when carpet surface has flaw point
When, which can block the light of light source, black splotch occur in white image captured by line scan camera, simple in this way
Change image comparison calculating, and testing result is very accurate, to refer to artificial detection, reduces cost of labor.
In addition detection support roller trim locations, line scan camera angle can swing tune on perpendicular to shooting direction line
Whole shooting direction line detects support roller by fine tuning, so that it may fine tuning detection support the distance between roller group and shooting direction line,
The flaw point of appropriate projections height can be detected by adjusting suitable distance in this way, and some too small acceptable flaw points are then
It is filtered without being detected, testing result is more reasonable.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the main view of the embodiment of the present invention；
Fig. 3 is the top view of the embodiment of the present invention；
In attached drawing: 1. racks；2. unwinding device；21. rotating arm；22. being lifted cylinder；23. gas expansion shaft；24. safety chuck；
25. magnetic powder cluth；3. transition deflector roll；4. supporting measuring roll；5. light source；6. line scan camera；7. micromatic setting；71. fixed
Seat；72. adjustment seat；73. adjusting handle；74. roller seat；8. angle adjusting mechanism；81. beat crossbeam；82. fixed plate；9. artificial
Repair platform.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail.
As shown in Figure 1-3, a kind of carpet surface Defect Detection device, including rack 1, it is provided in rack 1 for unreeling
The unwinding device 2 of carpet is provided with several transition deflector rolls 3 and a detection support roller in rack 1, what unwinding device 2 unreeled
Carpet is wound on transition deflector roll 3 and support measuring roll 4 and is drawn off, and carpet is detection faces in the outside cambered surface of support measuring roll 4,
Light source 5 and line scan camera 6 are provided in rack 1,5 face of the line scan camera 6 and light source, the shooting side of line scan camera 6
The outside of detection faces is in line, the distance between closest approach of the shooting direction line and detection faces is less than the prominent of setting flaw point
Play height.
In the present embodiment, unwinding device 2 includes swinging two rotating arms 21 being installed in rack 1, two rotating arms
Lifting cylinder 22 is provided between 21 and rack 1, between two rotating arms 21 on be provided with gas expansion shaft 23, the two of the gas expansion shaft 23
End is installed on rotating arm 21 by safety chuck 24, and magnetic powder cluth 25, support inspection are connected on one of safety chuck 24
It surveys roller 4 to be installed on micromatic setting 7, which adjusts support measuring roll 4 and slide, the glide direction of the support measuring roll 4
Vertical with shooting direction line, detection device further includes manual repair platform 9, which is set to the running route of carpet
On, as shown in figure 1, two manual repair platforms 9 are provided with, the flaw part detected can be repaired in time, after avoiding
Phase unreels again to repair, and improve production efficiency.
In the present embodiment, micromatic setting 7 is two sets and is respectively arranged at the both ends of support measuring roll 4, and micromatic setting 7 includes
The fixing seat 71 being fixed in rack 1 is slidably fitted with adjustment seat 72 in the fixing seat 71, the adjustment seat 72 and fixing seat 71 it
Between be provided with leadscrew-nut mechanism, adjusting handle 73 is provided on the leadscrew-nut mechanism or is connected with power device, support
The both ends of measuring roll 4 are rotatablely installed in roller seat 74, which is fixed in adjustment seat 72, in Fig. 1, sets on leadscrew-nut mechanism
The adjusting handle 73 set, it is of course also possible to which other power devices are arranged.
In the present embodiment, adjusting handle 73 is handwheel with a scale, can accomplish accurately to adjust, line scan camera 6 passes through
Angle adjusting mechanism 8 is installed in rack 1, and angle adjusting mechanism 8 adjusts line scan camera 6 and supports roll axis around detection is parallel to
Direction is swung, and angle adjusting mechanism 8 includes beat crossbeam 81, and the both ends of the beat crossbeam 81 are provided with fixed plate 82, this is fixed
Two arc-shaped holes being symmetrically arranged on plate 82, the fixed plate 82 are fixed on by the fixing screws being constrained in arc-shaped hole
In rack 1.
A kind of carpet surface flaw detection method, the detection method have used above-mentioned detection device, floor covering have been passed through
Unwinding device 2 unreels and by running under power, and carpet carries out Defect Detection at detection support roller after support roller after testing, utilizes
Line scan camera 6 and the web surface for 5 pairs of light source operations being oppositely arranged carry out line surface sweeping imaging, the shooting of line scan camera 6
Direction line is in the outside of detection faces, and the distance between closest approach of the shooting direction line and detection faces is less than setting flaw point
Rising height, when carpet surface does not have flaw, line scan camera 6 is imaged as white image, and when carpet surface has flaw
When point, which can block the light of light source 5, black splotch occur in white image captured by line scan camera 6.
In use, rotating arm 21 is raised to suitable height by lifting cylinder 22, coiled carpet is unreeled by let off roll
It is drawn afterwards, by transition deflector roll 3, fabric forms the detection faces of arc-shaped on support measuring roll 4, passes through angle tune
It saves mechanism 8 and adjusts the progress beat of beat crossbeam 81, so as to adjust the shooting angle of line scan camera 6, so that 6 He of line scan camera
5 face of light source, line scan camera 6 are shot, and yarn flaw are thrown if having on carpet, then when the flaw position enters detection faces
When will block light source 5, it is that (carpet is indefectible for the high light image of white that line scan camera 6 original in this way, which scans obtained image,
When), and when having flaw, then occur the shade of black or spot in the image of white bloom, can thus detect the flaw
Position, then carpet is repaired in time at manual repair platform 9.
In addition, the rising height of the detection flaw point detected as needed, adjusts support measuring roll using the micromatic setting 7
The distance between 4 and shooting direction line, to meet different production requirement and client's needs.
Cylinder, the leadscrew-nut mechanism mentioned in the present embodiment are current routine techniques, in April, 2008 Beijing
Five editions the 28th time printing " mechanical design handbooks the 5th edition " in it is detailed disclose cylinder, leadscrew-nut mechanism it is specific
Structure and principle and other designs, belong to the prior art, structure is cheer and bright.
Embodiment described above is only the description to the preferred embodiment of the present invention, not as the limit to the scope of the invention
It is fixed, on the basis of not departing from design spirit of the present invention, to various modifications and transformation that technical solution of the present invention is made, it should all fall
Enter in the protection scope that claims of the present invention determines.
Claims (10)
1. a kind of carpet surface Defect Detection device, it is characterised in that: including rack, be provided in the rack for unreeling ground
The unwinding device of blanket is provided with several transition deflector rolls and a detection support roller in the rack, and the unwinding device unreels
Carpet measuring roll and be drawn off wound on transition deflector roll and support, the carpet is detection in the outside cambered surface of support measuring roll
Face is provided with light source and line scan camera in the rack, the line scan camera and light source face, the bat of the line scan camera
The outside that direction line is in detection faces is taken the photograph, the distance between closest approach of the shooting direction line and detection faces is less than setting flaw point
Rising height.
2. a kind of carpet surface Defect Detection device as described in claim 1, it is characterised in that: the support measuring roll installation
In on micromatic setting, which adjusts support measuring roll sliding, the glide direction and shooting direction line of the support measuring roll
Vertically.
3. a kind of carpet surface Defect Detection device as claimed in claim 2, it is characterised in that: the micromatic setting is two sets
And the both ends of support measuring roll are respectively arranged at, the micromatic setting includes the fixing seat being fixed in rack, in the fixing seat
It is slidably fitted with adjustment seat, is provided with leadscrew-nut mechanism between the adjustment seat and fixing seat, is arranged on the leadscrew-nut mechanism
There is adjusting handle or be connected with power device, the both ends of the support measuring roll are rotatablely installed in roller seat, which is fixed on
In adjustment seat.
4. a kind of carpet surface Defect Detection device as claimed in claim 3, it is characterised in that: the adjusting handle is that band is carved
The handwheel of degree.
5. a kind of carpet surface Defect Detection device as claimed in claim 4, it is characterised in that: the line scan camera passes through
Angle adjusting mechanism is installed in the rack, and angle adjusting mechanism adjustment line scan camera is around being parallel to detection support roller
Axis direction is swung.
6. a kind of carpet surface Defect Detection device as claimed in claim 5, it is characterised in that: the angle adjusting mechanism packet
Beat crossbeam is included, the both ends of the beat crossbeam are provided with fixed plate, two be symmetrically arranged in the fixed plate arc-shaped hole, should
Fixed plate is fixed on the rack by the fixing screws being constrained in arc-shaped hole.
7. a kind of carpet surface Defect Detection device as claimed in claim 6, it is characterised in that: the detection device further includes
Manual repair platform, the manual repair platform are set on the running route of carpet.
8. a kind of carpet surface Defect Detection device as claimed in claim 7, it is characterised in that: the unwinding device includes pendulum
Dynamic two rotating arms being installed in rack, this two are provided with lifting cylinder between rotating arm and rack, two rotating arms it
Between on be provided with gas expansion shaft, the both ends of the gas expansion shaft are installed on rotating arm by safety chuck, on one of safety chuck
Connect magnetic powder cluth.
9. a kind of carpet surface flaw detection method, it is characterised in that: the detection method has used the detection in claim 1 to fill
Set, floor covering unreeled by unwinding device and by running under power, carpet after testing after support roller at detection support roller into
Row Defect Detection；Line surface sweeping imaging is carried out to the web surface of operation using line scan camera and the light source being oppositely arranged, line is swept
The shooting direction line for retouching camera is in the outside of detection faces, and the distance between the shooting direction line and the closest approach of detection faces are less than
The rising height of flaw point is set, when carpet surface does not have flaw, line scan camera is imaged as white image, and works as carpet
When there is flaw point on surface, which can block the light of light source, occur in white image captured by line scan camera black
Color spot point.
10. a kind of carpet surface flaw detection method as claimed in claim 9, it is characterised in that: the detection support roller can
The trim locations on perpendicular to shooting direction line, line scan camera angle can swing adjustment shooting direction line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910228423.1A CN109946312B (en) | 2019-03-25 | 2019-03-25 | Carpet surface flaw detection device and flaw detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910228423.1A CN109946312B (en) | 2019-03-25 | 2019-03-25 | Carpet surface flaw detection device and flaw detection method |
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| Publication Number | Publication Date |
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| CN109946312A true CN109946312A (en) | 2019-06-28 |
| CN109946312B CN109946312B (en) | 2024-03-29 |
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| CN201910228423.1A Active CN109946312B (en) | 2019-03-25 | 2019-03-25 | Carpet surface flaw detection device and flaw detection method |
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| CN111735819A (en) * | 2020-06-09 | 2020-10-02 | 利辛县柏斯特纺织科技有限公司 | Broken yarn detection system of gauze raw materials |
| CN113183434A (en) * | 2021-04-06 | 2021-07-30 | 哈尔滨哈普电气技术有限责任公司 | Detection system and detection method for protrusions on surface of semi-conductive shielding material belt material of high-voltage cable |
| CN113866177A (en) * | 2021-12-03 | 2021-12-31 | 佛山市坦斯盯科技有限公司 | Flexible circuit board AOI roller type detection equipment |
| CN113899755A (en) * | 2021-11-17 | 2022-01-07 | 武汉华星光电半导体显示技术有限公司 | Screen crease degree detection method and visual detection equipment |
| CN116773539A (en) * | 2023-08-15 | 2023-09-19 | 天津安芝金林地毯有限公司 | Carpet processing-based surface flaw detection equipment and technology |
| CN117191806A (en) * | 2023-09-21 | 2023-12-08 | 科芃智能科技（苏州）有限公司 | Board defect detection device based on visual detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735819A (en) * | 2020-06-09 | 2020-10-02 | 利辛县柏斯特纺织科技有限公司 | Broken yarn detection system of gauze raw materials |
| CN113183434A (en) * | 2021-04-06 | 2021-07-30 | 哈尔滨哈普电气技术有限责任公司 | Detection system and detection method for protrusions on surface of semi-conductive shielding material belt material of high-voltage cable |
| CN113183434B (en) * | 2021-04-06 | 2022-06-07 | 哈尔滨哈普电气技术有限责任公司 | System and method for detecting surface bulge of semi-conductive shielding material strip of cable |
| CN113899755A (en) * | 2021-11-17 | 2022-01-07 | 武汉华星光电半导体显示技术有限公司 | Screen crease degree detection method and visual detection equipment |
| CN113866177A (en) * | 2021-12-03 | 2021-12-31 | 佛山市坦斯盯科技有限公司 | Flexible circuit board AOI roller type detection equipment |
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| CN117191806A (en) * | 2023-09-21 | 2023-12-08 | 科芃智能科技（苏州）有限公司 | Board defect detection device based on visual detection |
| CN117191806B (en) * | 2023-09-21 | 2024-04-05 | 科芃智能科技（苏州）有限公司 | Board defect detection device based on visual detection |
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| CN109946312B (en) | 2024-03-29 |
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