CN1203221C - Image technology equipment and method of eliminating unevenness of loom path thickness - Google Patents
Image technology equipment and method of eliminating unevenness of loom path thickness Download PDFInfo
- Publication number
- CN1203221C CN1203221C CN 02111795 CN02111795A CN1203221C CN 1203221 C CN1203221 C CN 1203221C CN 02111795 CN02111795 CN 02111795 CN 02111795 A CN02111795 A CN 02111795A CN 1203221 C CN1203221 C CN 1203221C
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- loom
- computer
- picture
- fell
- camera
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Abstract
The present invention relates to a device for eliminating starting marks of looms by image technology and a method thereof. The device is composed of a camera arranged on a loom in view of fabrics near a loom opening, and a computer used for controlling the loom, wherein the camera is provided with an optical microscopic magnifying device. The using method comprises the following steps: when the loom stops, the camera shoots a picture of the fabric, and the picture is sent to the computer which processes the picture into a grey picture T1 which is stored in the computer; before the loom is started, the camera shoots another picture of the fabric, and the picture is sent to the computer which processes the picture into a grey picture T2 which is stored in the computer; according to the principle of image matching, the displacement of the grey picture T2 corresponding to the grey picture T1 is calculated; when no displacement exists between the two pictures, the loom is started by the computer; when displacement exists between the two pictures, the computer controls a warp feeding device to feed warps or a winding device to wind; when the two pictures are superposed, the loom is started. The present invention can effectively eliminate starting marks of looms.
Description
Technical field:
The present invention relates to textile machine, particularly a kind of method of eliminating loom drive path thickness with image technique.
Background technology:
In present existing technology, eliminating the driving weft crackiness has following two class methods: the first rule of thumb estimates the warp let-off before driving with other relevant parameter and batches regulating quantity and compensate, to alleviate the driving weft crackiness.Because the compensation rate of this method estimates, and is inaccurate,, can not thoroughly eliminate the driving weft crackiness so its compensation effect is uncertain.It two is displacements of measuring fell with the measuring method of various contacts, and directly controls the warp let-off and batch according to the result who measures, and fell is adjusted to correct position before driving.The difficult point of this method is also not find a kind of effective contact cloth fell checkout gear, can guarantee to measure accurately and reliably, does not influence the production of weaving cotton cloth normally again.
Summary of the invention:
The technical problem to be solved in the present invention is the difficulty that overcomes above-mentioned prior art, and a kind of method of eliminating loom drive path thickness with image technique is provided.
The design of technical solution of the present invention is: utilize image collecting device and image processing techniques to measure displacement of cloth-fell non-contactly, go to control the warp let-off and batching apparatus in real time with the result who measures, before driving fell is accurately adjusted to correct position.
Specifically, be exactly a kind of method with image technique elimination loom drive path thickness, this method comprises the following steps:
1. on loom, avoid the latitude motion of cramping of fell steel, a camera that has an optical microphotograph amplifying device is installed, be used to take near the fell but do not contain the textile image of fell, the output of this camera links to each other with the computer of a control loom;
When 2. stopping, camera is taken near the width of cloth fell fabric but is not contained the gray-scale map T that the textile image of fell send Computer Processing to become limited classification
1, and preserve;
3. before driving, camera is taken near the width of cloth fell fabric again but the textile image that do not contain fell send computer, and is processed into the gray-scale map T of limited classification
2And keep;
4. in computer with gray-scale map T
2With gray-scale map T
1Be analyzed, calculate gray-scale map T by the principle of images match
2With respect to gray-scale map T
1Displacement;
5. as if two figure non-displacements, then drive by the computer starting loom; If two figure have displacement, then batch by the warp let-off of computer control let-off motion or batching apparatus, when two figure overlap, start loom and drive.
Advantage of the present invention is:
1, directly with the actual fabric of measuring be the displacement of fell, the warp let-off and the batching apparatus of control loom are adjusted the position of fell before driving, eliminate the driving weft crackiness of loom;
2, the fabric displacement measurement method that is adopted is contactless, does not disturb the process of weaving cotton cloth normally;
3,, make the precision of the displacement of cloth-fell of measuring to satisfy the requirement of control system precision owing to adopted the higher optical amplification device of enlargement ratio.
Description of drawings:
Fig. 1 is the present invention eliminates the camera of loom drive path thickness device with image technique installation site and a control system block diagram.
Fig. 2 is the textile image gray-scale map of camera picked-up.
Among the figure:
1-camera 2-computer 3-warp thread 4-fell 5-fabric
6-brest beams 7-licker-in 8-cloth beam 9-batching apparatus
10-let-off motion 11-is through axle
The specific embodiment:
Fig. 1 is the present invention eliminates the loom drive path thickness device with image technique camera installation site and a control system block diagram, A or A ' that camera 1 is installed near the fell 4 locate, optical microphotograph multiplication factor on the camera is between 20～500, and resulting image should be to be similar to the gray-scale map that can tell single fiber shown in Figure 2.After this figure is imported into the loom control computer, the loom control computer will divide progression according to the gray scale of setting by the complexity of differentiating, and each processes pixel of image be become the gray-scale map of limited classification.Fig. 2 is exactly such textile image gray-scale map.
The using method of apparatus of the present invention comprises the following steps:
1, on loom, camera 1 is installed as shown in Figure 1, the output of this camera 1 links to each other with the computer 2 of a control loom;
2, during caused by loom stop, 1 pair of fabric of camera is taken near the width of cloth fell but is not contained the gray-scale map T that the textile image of fell send computer 2 to be processed into limited classification
1And preserve;
3, drive before, camera 1 is taken near the width of cloth fell fabric again but the textile image that do not contain fell send computer 2 items for disposal to become the gray-scale map T of limited classification
2And keep;
4, in computer 2 with gray-scale map T
2With gray-scale map T
1Be analyzed:
5, work as T
2And T
1During non-displacement, 2 startup looms of computer are driven; If T
2And T
1When having compared displacement, then batched according to displacement control let-off motion 10 warp let-offs or batching apparatus 9 by computer 2, camera 1 absorbs textile image in real time, works as T
2And T
1During coincidence, computer 2 just starts loom automatically and drives.
Because the position of camera 1 is to make a video recording near the fabric the fell, so textile image overlaps, and illustrate that fabric got back to original position, and fell is also just got back to original position certainly, and driving at this moment can not produce the problem of driving weft crackiness in the nature of things.
Claims (1)
1, a kind of method with image technique elimination loom drive path thickness is characterized in that this method comprises the following steps:
1. the beating motion of avoiding loom steel button on loom is installed a camera (1) that has an optical microphotograph amplifying device, is used to take near the fell but does not contain the textile image of fell, and the output of this camera (1) links to each other with the computer (2) of a control loom;
When 2. stopping, camera (1) is taken near the width of cloth fell fabric but the textile image that do not contain fell send computer (2) to be processed into the gray-scale map T of limited classification
1, and preserve;
3. before driving, camera (1) is taken near the width of cloth fell fabric again but the textile image that do not contain fell send computer (2), and is processed into the gray-scale map T of limited classification
2And preserve;
4. in computer with gray-scale map T
1With gray-scale map T
2Be analyzed, calculate gray-scale map T by the principle of images match
2With respect to gray-scale map T
1Displacement;
5. if two figure non-displacements then start loom by computer (2) and drive; If two figure have displacement, then batch by computer (2) the control let-off motion warp let-off or batching apparatus, when two figure overlap, start loom and drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02111795 CN1203221C (en) | 2002-05-23 | 2002-05-23 | Image technology equipment and method of eliminating unevenness of loom path thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02111795 CN1203221C (en) | 2002-05-23 | 2002-05-23 | Image technology equipment and method of eliminating unevenness of loom path thickness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1389609A CN1389609A (en) | 2003-01-08 |
| CN1203221C true CN1203221C (en) | 2005-05-25 |
Family
ID=4741748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02111795 Expired - Fee Related CN1203221C (en) | 2002-05-23 | 2002-05-23 | Image technology equipment and method of eliminating unevenness of loom path thickness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1203221C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704078A (en) * | 2012-07-06 | 2012-10-03 | 常熟市石油固井工具有限公司 | Textile machine with image pick-up function |
| JP6922549B2 (en) * | 2017-08-23 | 2021-08-18 | 株式会社豊田自動織機 | Loom stop adjustment device |
-
2002
- 2002-05-23 CN CN 02111795 patent/CN1203221C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1389609A (en) | 2003-01-08 |
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