CN113322653A - Automatic positioning textile defect detection system - Google Patents
Automatic positioning textile defect detection system Download PDFInfo
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- CN113322653A CN113322653A CN202110608814.3A CN202110608814A CN113322653A CN 113322653 A CN113322653 A CN 113322653A CN 202110608814 A CN202110608814 A CN 202110608814A CN 113322653 A CN113322653 A CN 113322653A
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- control system
- textile machine
- vision
- defect detection
- guide rail
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H3/00—Inspecting textile materials
- D06H3/08—Inspecting textile materials by photo-electric or television means
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- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Textile Engineering (AREA)
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Abstract
The invention discloses an automatic positioning textile defect detection system, which comprises a guide rail, a vision system and a control system, wherein the vision system and the control system are arranged on the guide rail; the guide rail is provided with a sensor connected with the control system, the control system calculates the position of the visual system according to the moment when the visual system passes through the sensor and the preset moving speed of the visual system, and controls the visual system to shoot according to the position of the visual system. The automatic positioning textile defect detection system provided by the invention can automatically execute defect detection on a plurality of textile machines and can distinguish among the textile machines.
Description
Technical Field
The invention relates to the technical field of textile production detection, in particular to a defect detection system and a textile machine detection system.
Background
In the textile industry, automatic textile machines are widely used, in order to control the cooling of the product, and in addition, to obtain textile on-line defect detection devices, which generally have a set/piece of visual hardware, such as a camera or a video camera, for obtaining the images or images of the defects. In the defect detection process, the camera or video camera continuously takes pictures or photographs of the cloth. The detection of the condition of the textile machine, the fabric and the raw material becomes a necessary loop for the automatic weaving. However, optical equipment for detecting textiles is often very expensive, and in the prior art, a plurality of cameras are required to be arranged for detection, so that the cost is high; moreover, in the case of simultaneous operation of a plurality of textile machines, it is not possible to achieve fully automated identification and detection.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an automatic positioning textile defect detection system which can realize automatic detection of a plurality of textile machines under the condition of lower cost, and the technical scheme is as follows:
the invention provides an automatic positioning textile defect detection system, which comprises a guide rail, a vision system and a control system, wherein the vision system and the control system are arranged on the guide rail; the guide rail is provided with a sensor connected with the control system, the control system calculates the position of the visual system according to the moment when the visual system passes through the sensor and the preset moving speed of the visual system, and controls the visual system to shoot according to the position of the visual system.
Furthermore, the control system is prestored with the position of the textile machine, and judges whether the vision system is positioned above the textile machine according to the calculated position of the vision system, and if so, the control system controls the vision system to shoot a detection area on the textile machine.
Further, the control system is pre-stored with a textile machine number, the textile machine number is set according to a preset number rule, the textile machine number is in one-to-one correspondence with the position of the textile machine, when the visual system shoots the textile machine under the control of the control system, the control system marks the shot image, and the marked content comprises the corresponding textile machine number.
Furthermore, the control system obtains the number of images to be shot according to the number of the textile machine and controls the vision system to shoot the textile machine, and the shooting frequency is equal to the number of the images to be shot.
Further, the control system controls the vision system to sequentially perform a plurality of times of photographing in one-way movement if the number of images to be photographed is plural, and in the plurality of times of photographing, the image photographed at the first time and the image photographed at the last time include two opposite edges of the detection area, respectively.
Further, the control system comprises an image processing module, the image processing module detects defects of the shot image according to a preset algorithm, and if the defects of the shot image are detected, the defect information and the mark corresponding to the shot image are uploaded.
Furthermore, the guide rail is an annular guide rail, the number of the vision systems arranged on the annular guide rail is two, and the two vision systems are arranged in central symmetry.
Further, the guide rails are linear guide rails, the number of the guide rails is two, the two guide rails are arranged in parallel and oppositely, and the two guide rails are respectively provided with one vision system.
Further, the control system further comprises a front-end system and/or a storage module, and the image processing module uploads the defect information and the mark to the front-end system and/or the storage module.
Further, control system passes through the actuating system drive the vision system follows the guide rail motion, the actuating system is including setting up gear, chain and the driving motor on the guide rail, the gear with driving motor is connected, just the gear can with the vision system cooperation, the chain with the gear engagement.
The technical scheme provided by the invention has the following beneficial effects:
a. automatically performing defect detection on a plurality of textile machines, and distinguishing among the plurality of textile machines;
b. the device structure is succinct, easily operation, and the portable setting of vision system makes can detect many weaving machines under the condition of not increasing the camera, and the cost is lower.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a textile machine detection system of an air jet textile machine provided by an embodiment of the present invention;
FIG. 2 is a schematic view of a textile machine detection system of a water jet textile machine provided by an embodiment of the present invention;
FIG. 3 is a schematic view of a linear guide rail of a defect detection system provided by an embodiment of the present invention;
fig. 4 is a schematic view of a circular guide rail of a defect detection system provided by an embodiment of the invention.
Wherein the reference numerals are respectively: 10-vision system, 11-slide block, 20-guide rail, 30-support, 31-upright post, 32-cross beam, 33-reinforcing bar, 41-air jet loom, 421-cloth cover detection area, 422-warp yarn detection area, 43-warp yarn, 44-harness, 45-water jet loom, 46-cover plate, and 5-vision system installation range.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.
Referring to fig. 1 to 4, an embodiment of the present invention provides an automatic positioning textile defect detecting system, which includes a guide rail 20, a vision system 10 disposed on the guide rail 20, and a control system, wherein the vision system 10 moves along the guide rail 20 under the control of the control system; a sensor connected with the control system is arranged on the guide rail 20, the control system calculates the position of the vision system 10 according to the time when the vision system 10 passes through the sensor and the preset moving speed of the vision system 10, and controls the vision system 10 to shoot according to the position of the vision system 10.
In one embodiment of the invention, the control system has a pre-stored position of the textile machine, and the control system determines whether the vision system 10 is located above the textile machine based on the calculated position of the vision system 10, and if so, controls the vision system to photograph a detection area on the textile machine.
In one embodiment of the invention, the control system is pre-stored with a textile machine number, which is set according to a preset numbering rule and corresponds to the position of the textile machine one by one, when the vision system 10 photographs the textile machine under the control of the control system, the control system marks the photographed image, and the marked content includes the corresponding textile machine number.
For example, if there are 4 linear tracks in the plant, and 2 looms are located below each linear track, the loom numbers should indicate which row (below which track) the loom is located, and the number of looms in that row.
In one embodiment of the present invention, the control system controls the vision system to sequentially perform a plurality of times of photographing in one-way movement if the number of images to be photographed is plural, and in the plurality of times of photographing, the image photographed first and the image photographed last include two opposite edges of the detection area, respectively.
Specifically, a location on the rail 20 is set in the control system at the time of shooting, which is associated with the position of the textile machine, and when it is judged that the vision system 10 has just reached this location, the vision system 10 starts shooting, takes a first picture at this location, and takes pictures successively during the continued movement along the rail 20. And the control system obtains the number of images to be shot according to the serial number of the textile machine and controls the vision system to shoot the textile machine, wherein the shooting frequency is equal to the number of the images to be shot. For example, if the width of the cloth detection area 421 of the second textile machine in the first row is 2 meters and the width of the visual field of the vision system 10 is 50cm, the vision system takes pictures in sequence 4 times to completely cover the cloth detection area 421.
In an embodiment of the present invention, the control system includes an image processing module, and the image processing module performs defect detection on the captured image according to a preset algorithm, and uploads defect information and a mark corresponding to the image if a defect is detected in the image.
The defect detection system of the present invention can operate as follows:
s1, in the moving process of a visual system, the visual system is positioned in real time through a motion control system, and the position of the visual system is identified at any time;
s2, before defect detection is carried out on a certain textile machine, defining the number of the textile machine according to a name rule defined in advance, and sequentially defining the number of images to be shot under the number, wherein the method comprises the following steps:
s3, according to the moving direction of the visual system and the visual field range of the visual system, operating and controlling one end of the visual system moving to the visual field range to shoot the starting end of the cloth, automatically displaying the current position of the visual system in motion control software, and determining the position in the software, namely completing the first image to be shot;
s4, analogizing until the number of the images to be shot of the cloth is set according to the width of the cloth and the visual field range of the visual system so as to completely cover the cloth;
and S5, the number of the shot images can be increased or decreased along with the width of the cloth, and the shot images are sequentially transmitted into the image vision processor. The image vision processor considers the images from the textile machine and can identify the serial number of the textile machine and the serial number of the images;
s6, the image vision processor processes the images according to an algorithm, and when a certain image is identified to have a defect, the defect information and the information of the image (from which textile machine and the image) are reported, so that the detection and reporting tasks are completed.
In one embodiment of the invention, the guide rail is an annular guide rail connected end to end, the number of the vision systems arranged on the annular guide rail is two, and the two vision systems are arranged in central symmetry; in particular, with reference to figure 4, on the rail 20 one or more vision systems 10 are provided, said vision systems 10 being able to move unidirectionally along said rail 20, the textile machines being evenly distributed under the rail 20, each vision system 10 being able to pass through all the textile machines in sequence in turn.
In one embodiment of the present invention, the guide rails are linear guide rails, the number of the guide rails is two, the two guide rails are arranged in parallel and oppositely, and the two guide rails are respectively provided with one vision system. I.e. the number of guides 20 is greater than or equal to two, each guide 20 being rectilinear, see fig. 3, and each guide 20 being provided with one or more vision systems 10, said vision systems 10 being able to move reciprocally on said guide 20, and the vision system 10 passing through one or more textile machines under this guide only.
In one embodiment of the present invention, the control system further comprises a front end system and/or a storage module, and the image processing module uploads the defect information and the mark to the front end system and/or the storage module.
In one embodiment of the invention, the control system drives the vision system to move along the guide rail through a driving system, the driving system comprises a gear, a chain and a driving motor, the gear is arranged on the guide rail and is connected with the driving motor, the gear can be matched with the vision system, and the chain is meshed with the gear.
Referring to fig. 3 and 4, in particular, the defect detecting system comprises a guide rail 20, a driving mechanism and a vision system 10 arranged on the guide rail 20, wherein the guide rail 20 is used for being erected above a plurality of textile machines, and the vision system 10 can move along the guide rail 20 under the driving of the driving mechanism so as to sequentially perform identification detection on detection areas on different textile machines. The vision system 10 can be located on the same side of the rail at all times or on different sides of the rail to accommodate the orientation of the underlying textile machine. The vision system 10 includes a camera and a communication device or may also include a controller.
The vision system 10 is removably mountable at the first fixed location, the second fixed location, or an area therebetween; the vision system 10 mounted in said first or second fixed position corresponds respectively to two detection zones on the textile machine, comprising a cloth detection zone 421 and a warp detection zone 422.
The defect detection system provided by the embodiment of the invention can be used for detecting an air jet textile machine and can also be used for detecting a water jet textile machine. To accommodate different needs, the defect detection system of the embodiment of the present invention may further include another driving device to enable the vision system 10 to move in a direction intersecting the guide rail 20.
Referring to fig. 1 and 2, the vision system 10 of the defect detection system can be selectively arranged opposite to a cloth detection area or a warp detection area on the textile machine, and a vision system installation range 5 can be seen. The defect detection system is held above the textile machine by the support of a bracket 30, the bracket 30 comprises a vertical column 31, a cross beam 32 and a reinforcing strip 33 connecting the vertical column 31 and the cross beam 32, and the reinforcing strip 33 makes the bracket 30 more stable.
If the textile machine is a water jet textile machine, it should be noted that a cover plate 46 is locally arranged above the cloth outlet side of the water jet textile machine 45, a cloth surface detection area 421 on the cloth outlet side is close to the edge of the cloth outlet side, and the warp yarn detection area 422 is adjacent to the cover plate 46; since the cover plate 46 is provided to make the distance between the cloth detection area 421 and the warp detection area 422 longer, the camera angle of the camera in the vision system 10 is preferably adjustable, so that the imaging area can cover the cloth detection area.
Referring to fig. 1 and 2, the heddle 44 is positioned between the cloth cover detection area 421 and the warp yarn detection area 422, and the warp yarn 43 and the heddle 44 are woven into a cloth by a textile machine. In some cases, the warp yarn detection area is almost horizontal, but the cloth cover detection area 421 is not necessarily horizontal, and is often at an angle with the horizontal direction.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An automatic positioning textile defect detection system is characterized by comprising a guide rail (20), a control system and a vision system (10) arranged on the guide rail, wherein the vision system (10) moves along the guide rail (20) under the control of the control system; the guide rail (20) is provided with a sensor connected with the control system, the control system calculates the position of the visual system (10) according to the time when the visual system (10) passes through the sensor and the preset moving speed of the visual system (10), and controls the visual system (10) to shoot according to the position of the visual system (10).
2. A defect detection system as claimed in claim 1, characterized in that a position of the textile machine is prestored in the control system, the control system determining whether the vision system (10) is located above the textile machine on the basis of the calculated position of the vision system (10), and if so, the control system controlling the vision system (10) to photograph a detection area on the textile machine.
3. A system as claimed in claim 2, characterized in that a textile machine number is prestored in the control system, said textile machine number being set according to a preset numbering rule and corresponding one-to-one to the position of the textile machine, when the visual system (10) photographs the textile machine under the control of the control system, the control system marks the photographed image, the marking including the corresponding textile machine number.
4. A defect detection system according to claim 3, wherein said control system obtains the number of images to be taken on the basis of said textile machine number and controls said vision system (10) to take images of said textile machine a number of times equal to the number of images to be taken.
5. The defect detection system according to claim 4, wherein if the number of images to be captured is plural, the control system controls the vision system (10) to sequentially perform plural times of capturing in one-way movement, and in the plural times of capturing, the image captured first and the image captured last include two opposite edges of the detection area, respectively.
6. The defect detection system of claim 3, wherein the control system comprises an image processing module, the image processing module performs defect detection on the captured image according to a preset algorithm, and if a defect is detected in the image, the defect information and a mark corresponding to the image are uploaded.
7. A defect detection system as claimed in claim 1, characterized in that said guide (20) is an endless guide, said vision systems (10) are arranged in two on said endless guide, and said two vision systems (10) are arranged in central symmetry.
8. A defect detection system as claimed in claim 1, characterized in that said guides (20) are rectilinear guides, in that said guides are two in number, are arranged parallel and opposite and are provided with one of said vision systems (10) each.
9. The defect detection system of claim 6, wherein the control system further comprises a front end system and/or a storage module, the image processing module uploading the defect information and the indicia to the front end system and/or the storage module.
10. The defect detection system of claim 1, wherein the control system drives the vision system (10) along the guide rail (20) by means of a drive system, the drive system comprising a gear, a chain and a drive motor arranged on the guide rail (20), the gear being connected to the drive motor and being capable of cooperating with the vision system (10), the chain being in mesh with the gear.
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Cited By (3)
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| CN114047126A (en) * | 2021-10-31 | 2022-02-15 | 苏州精梭智能技术有限公司 | Annular track assembly, weaving defect inspection equipment with same and weaving system |
| CN114067453A (en) * | 2021-10-31 | 2022-02-18 | 苏州精梭智能技术有限公司 | A kind of fabric defect detection method and defect inspection method |
| CN114067454A (en) * | 2021-10-31 | 2022-02-18 | 苏州精梭智能技术有限公司 | Weaving defect inspection equipment, weaving system and weaving defect inspection method thereof |
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