CN203705319U - Textile and decorative fabric crease-resistant performance tester - Google Patents
Textile and decorative fabric crease-resistant performance tester Download PDFInfo
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- CN203705319U CN203705319U CN201320858855.9U CN201320858855U CN203705319U CN 203705319 U CN203705319 U CN 203705319U CN 201320858855 U CN201320858855 U CN 201320858855U CN 203705319 U CN203705319 U CN 203705319U
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Abstract
The utility model relates to a textile and decorative fabric crease-resistant performance tester which comprises a body, wherein the body comprises a charge coupled device (CCD) camera which corresponds to an overturning plate assembly; the upper part of the overturning plate assembly is connected with an active unit assembly. The textile and decorative fabric crease-resistant performance tester is good in product accuracy and is not interfered by the external force; according to the tester, after the image of the bended and recovered textile and decorative fabric sample is shot by the camera, the image is acquired by a microcomputer, and the crease recover angle of the sample is automatically calculated by technologies such as image enhancement, image binaryzation, image separating and refining and the like, so that the accuracy of measurement can be guaranteed; after the technology is adopted, artificial operation error can be avoided, and the consistency of experimental result data of all laboratories can be guaranteed.
Description
Technical field
The utility model relates to fabric crease elasticity test instrument technical field.
Background technology
Along with the raising of expanding economy, material and cultural life and the change of philosophy of life, people are more and more higher to the requirement of textile fabrics, not only require it to there is the prevailing style and pattern, also require it to there is good wearability and some special function.China is textile and clothing big producing country, wants to produce the new product with high added value, just must make the aspect such as style and wearability of clothes be better than common product.Therefore the wearability of research garment material seems extremely important.And fabric and decorative fabric anti-crease property can be one of of paramount importance indexs in wearability.
Fabric and decorative fabric anti-crease property can claim again fabric pincher elasticity, depend primarily on the elastic recovery rate, yarn twist, fabric structure, mass area ratio, fabric of fiber of composition fabric through weft count and the processing and sorting to fabric.
At present, fabric and decorative fabric anti-crease property energy testing tool that fabric and clothes manufacturer and detection unit adopt have shortcomings, as angle-measuring equipment normally adopts optoelectronic angle measuring head, need personnel's calibration reference point, tester's labor workload is very large, occurs unavoidably error, once and there is error in calibration reference, the wrinkle recovery angle that measurement result draws will increase deviation, measures accuracy rate not high.Adopted at present the crease recovery angle of normal beam technique fabric by most practitioner, owing to being subject to the restriction of angle-measuring equipment, have following problem: crease recovery angle deviation is large, measurement accuracy rate is low, labor workload is large.The research of this project will solve above-mentioned these problems, develop the tester of a kind of advanced practicality, efficiently and accurately to meet the demand in market, promote the technical merit of conventional industries, thereby improve the product competitiveness in the market of China's weaving and apparel industry and decorative fabric.
Project is is mainly researched and developed content: make sample by testing standard, on 10 stations of fabric pincher elasticity tester, with the fixing sample both wings of sample holder.Sample holder closes, sample holder lower magnet automatic absorbing, sample holder is the level of state, roll sample well, topped upper transparent pressing plate, microcomputer control single chip computer starts successively each station jacking system of tester weight weights is accurately pressed on the transparent pressing plate of topped sample reposefully, each station pressurizes after 5min successively, weight weights rises, sample holder lower magnet discharges, sample holder flicks slowly, sampling, to fabric sample knuckle on each station, is taken in CCD (charge-coupled image sensor) mobile camera moving position; Carry out image acquisition, process and calculate through microcomputer, and show each station fabric sample crease recovery angle degree test result.
Performance assessment criteria:
1. sample bears pressure load: 10N ± 0.05N
2. sample bears pressure load time: 5min ± 2s
3. angle measurement accuracy: 3 °～175 ° ± 0.5 °
4. anxious crease recovery angle minute: release heavy rear 15s ± 1s
5. slow crease recovery angle minute: release heavy rear 5min ± 2s
6. pneumatic means air pressure: 0.4Mpa～0.5Mpa
7. pneumatic means stroke: 150mmm
8. can join printing interface
9.GPIB is connected with computer, by computer save data, display graphics
10. normalization function
Main results
1, the error of the measuring accuracy of crease recovery angle is in ± 0.5 °; The departure of pressure load is in ± 0.05N; Guarantee measuring accuracy.
2, weights weight is descending, adopts the Pneumatic elevation mode of orthoscopic, and the air inlet of tester pneumatic means arranges throttling valve, and with the exhaust of speed governing exhaust box, weights weight is descending steadily.After weights weight is exerted pressure on sample, throw off with elevating lever, be not subject to External force interference.
3, after this tester utilizes camera that the image after fabric and decorative fabric sample bending reply is taken, gather image by microcomputer, the technology such as figure image intensifying, image binaryzation, image separation and refinement calculate the crease recovery angle of sample automatically, guarantee the accuracy of measuring, this technology can be avoided artificial operate miss, also can guarantee the consistance of each laboratory experiment result data.
Current, the method for measuring fabric and decorative fabric pincher elasticity performance is a lot, but modal method is still measured fabric folded sample crease recovery angle, and advantage is to be easy to standardization and standardization, and measurement result has comparability.Fabric pincher elasticity performance measurement method is horizontal level according to measuring sample crease line when recovery angle, is still upright position, is divided into Using Horizontal Bridgman Method and normal beam technique.
Using Horizontal Bridgman Method: when sample folding line is replied, crease line is parallel with surface level, measures the method for replying angle;
Normal beam technique: when sample folding line is replied, crease line is vertical with surface level, measures the method for replying angle.The steps include: compression load 10N on folding sample, be 5min pressing time, records the anxious crease recovery angle of sample after removal compression load 15s, records the slow crease recovery angle of sample after 5min.
It is exactly to revise according to the testing tool of China and technical conditions that folding line in China standard GB/T/T3819-1999 " the mensuration recovery angle of textile fabric folding line recovery " is vertically replied method (normal beam technique), and measurement result has comparability.At present, the corresponding testing tool of domestic development has ten stations and ten corresponding weights conventionally, adopt the portable angle-measuring equipment that shares, vertical ballast after sample is folding, after removal load, sample erects with clamper, sample crease line is got upright position, then utilizes angle-measuring equipment manually to measure the crease recovery angle of fabric.In its testing tool, angle-measuring equipment is normally used optoelectronic angle measuring head, need personnel's calibration reference point, tester's labor workload is very large, there is unavoidably error, once and there is error in calibration reference, the wrinkle recovery angle that measurement result draws will increase deviation, measures accuracy rate not high., owing to being subject to the restriction of angle-measuring equipment, there is following problem in the current crease recovery angle of being adopted normal beam technique fabric by most practitioner: crease recovery angle deviation is large, measurement accuracy rate is low, labor workload is large.Therefore, the tester of domestic production is at present difficult to meet the demand in market.
Current, about the testing tool of anti-pincher elasticity material all depends on import substantially, only have in the world Xi Lai-Asia-Pacific Lars company limited of the U.S. to produce crease recovery performance tester, but there is some problem in this product: 1, to adopt Purely mechanical.2, complicated operation, can not meet user trial requirement.
Price is high, after sale service is slow, maintenance cost is high.
Utility model content
The purpose of this utility model is, textile and decorative fabric anti-crease property energy tester are provided, and by gathering image by microcomputer, guaranteed the accuracy of measuring.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is:
Textile and decorative fabric anti-crease property energy tester, comprise body, and body comprises CCD camera, and described CCD camera is corresponding with turnover panel assembly, and the top of described turnover panel assembly is connected with active unit assembly.
Below described CCD camera, be provided with light source, be provided with driving section before light source, driving section is electrically connected with key panel.
Described key panel is located on framework.
Described body entirety is cuboid, is provided with top board above, and active unit assembly is connected with top board by drag chain, and bottom is provided with base plate, and dual-side is side seal board, before be provided with overhead door, on overhead door, be framework, after have a back door connection, bottom is also provided with footing.
Compared with prior art, the beneficial effects of the utility model are: the error of the measuring accuracy of the utility model product crease recovery angle is in ± 0.5 °; The departure of pressure load is in ± 0.05N; Guarantee measuring accuracy; Weights weight is descending, adopts the Pneumatic elevation mode of orthoscopic, and the air inlet of tester pneumatic means arranges throttling valve, and with the exhaust of speed governing exhaust box, weights weight is descending steadily.After weights weight is exerted pressure on sample, throw off with elevating lever, be not subject to External force interference; After this tester utilizes camera that the image after fabric and decorative fabric sample bending reply is taken, gather image by microcomputer, the technology such as figure image intensifying, image binaryzation, image separation and refinement calculate the crease recovery angle of sample automatically, guarantee the accuracy of measuring, this technology can be avoided artificial operate miss, also can guarantee the consistance of each laboratory experiment result data.
Accompanying drawing explanation
Fig. 1 is the positive partial perspective structural representation of the utility model product embodiments;
Fig. 2 is the side perspective structural representation of the utility model product embodiments;
In the drawings,
1. footing 2. overhead door 3. framework 4. key panel 5. driving section 6. light source 7.CCD camera 8. drag chain 9. top board 10. back door 11. side seal board 12. active unit assembly 13. turnover panel assembly 14 base plates.
Embodiment
In conjunction with Fig. 1, for the utility model textile and decorative fabric anti-crease property energy tester example structure schematic diagram, comprise CCD camera 7, described CCD camera 7 is corresponding with turnover panel assembly 13, and the top of described turnover panel assembly 13 is connected with active unit assembly 12; Below described CCD camera 7, be provided with light source 6, be provided with driving section 5 before light source, driving section is electrically connected with key panel 4; Described key panel 4 is provided with on framework 3; Described textile and decorative fabric anti-crease property energy tester are cuboid, be provided with top board 9 above, active unit assembly 12 is connected with top board 9 by drag chain 8, bottom is provided with base plate 14, dual-side is side seal board 11, before be provided with overhead door 2, on overhead door 2, be framework 3, have a back door connection 10 below, bottom is also provided with footing 1.
Structural design main points:
1, pneumatic means straight line presses down mode, can guarantee that weights presses down in process, the transparent pressing plate center of sample holder, the center superposition of the center of gravity of weights weight and sample effective pressure area;
2, adopt high-quality damper that each station sample holder is at the uniform velocity opened, avoid sample holder to accelerate to open recovery angle is affected.Recovery angle measured value is more accurate;
3, different sample shape, angle evaluation are processed.
The key technical indexes:
1. sample bears pressure load: 10N ± 0.05N
2. sample bears pressure load time: 5min ± 2s
3. angle measurement accuracy: 3 °～175 ° ± 0.5 °
4. anxious crease recovery angle minute: release heavy rear 15s ± 1s
5. slow crease recovery angle minute: release heavy rear 5min ± 2s
6. pneumatic means air pressure: 0.4Mpa～0.5Mpa
7. pneumatic means stroke: 150mmm
8. can join printing interface
9.GPIB is connected with computer, by computer save data, display graphics
10. normalization function
The solution of key problem in technology problem
1, pneumatic means straight line presses down mode, can guarantee that weights presses down in process, the transparent pressing plate center of sample holder, the center superposition of the center of gravity of weights weight and sample effective pressure area;
2, adopt high-quality damper that each station sample holder is at the uniform velocity opened, avoid sample holder to accelerate to open recovery angle is affected.Recovery angle measured value is more accurate;
3, different sample shape, angle evaluation are processed.
Gather some technical essentials of image processing:
1, figure image intensifying
Original image is carried out to the medium filtering take 3*3 as template, and removal of images noise, increases picture contrast, makes fabric more outstanding, is beneficial to later image and cuts apart.
2, image is cut apart and refinement
Owing to adopting special illumination method, target in the image that makes to collect (fabric) and background difference are clearly.Therefore adopt adaptive iteration partitioning algorithm automatically to determine binary-state threshold.
After cutting apart, owing to also there being the targets such as turnover panel in image, but these targets are all in fixed position.Directly region, picture position, turnover panel place is made as to background according to these known conditions.So far, in image, only there is fabric information.
Textile image is carried out to refinement by morphologic method, for follow-up angle calculation provides rectilinear coordinates.
3, angle calculation
Wrinkle recovery angle refers to fabric fixed-wing and replys the angle between the wing.The X-axis of the rectangular coordinate system of whole angle is the Width of image, the short transverse that Y-axis is image.Be fixed on turnover panel because fixed-wing is parallel, and photographic images is using turnover panel as horizontal direction, therefore as long as determine that replying the residing straight line of the wing just can determine angle.The algorithm of determining straight line is as follows:
1. the path starting from the image lower left corner from left to right from top to bottom starts search, in the time running into first stain, records line number i;
2. start to continue from left to right search from top to bottom from line number i-3, in the time again running into stain, record this point coordinate (X1, y1);
3. start down to search for from image the top, in the time running into stain, record line number j;
4. start to continue down search from line number j+3, in the time again searching pixel and be 0, record this point coordinate (X2, y2);
5. compare y1, y2 size, works as y1, when y2 is initial value, does not have straight line, thinks that angle is 0 ° or 180 °;
6. obtain slope k=(y2-y1)/(X2-X1),
Angle is atan (k) * 180/3.1414-180.
Can not strictly line up a horizontal linear due to turnover panel being mechanically installed, and shooting direction also can not just in the horizontal direction, therefore calculating, above-mentioned each station upper angle have a fixing deviation.Therefore carry out image processing by several known Special corner metrics as fabric, just have the angular deviation value that can obtain on each station.
So far, on each station, can obtain crease recovery angle accurately.
Claims (4)
1. textile and decorative fabric anti-crease property energy tester, comprise body, body comprises CCD camera (7), it is characterized in that: described CCD camera (7) is corresponding with turnover panel assembly (13), the top of described turnover panel assembly (13) is connected with active unit assembly (12).
2. textile as claimed in claim 1 and decorative fabric anti-crease property energy tester, it is characterized in that: below described CCD camera (7), be provided with light source (6), before light source, be provided with driving section (5), driving section is electrically connected with key panel (4).
3. textile as claimed in claim 2 and decorative fabric anti-crease property energy tester, is characterized in that: described key panel (4) is located on framework (3).
4. textile as claimed in claim 1 and decorative fabric anti-crease property energy tester, it is characterized in that: described body entirety is cuboid, be provided with top board (9) above, active unit assembly (12) is connected with top board (9) by drag chain (8), bottom is provided with base plate (14), dual-side is side seal board (11), be provided with overhead door (2) above, on overhead door (2), be framework (3), have a back door connection below (10), bottom is also provided with footing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858855.9U CN203705319U (en) | 2013-12-23 | 2013-12-23 | Textile and decorative fabric crease-resistant performance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858855.9U CN203705319U (en) | 2013-12-23 | 2013-12-23 | Textile and decorative fabric crease-resistant performance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705319U true CN203705319U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320858855.9U Expired - Fee Related CN203705319U (en) | 2013-12-23 | 2013-12-23 | Textile and decorative fabric crease-resistant performance tester |
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| Country | Link |
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| CN (1) | CN203705319U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894833A (en) * | 2015-06-24 | 2015-09-09 | 绍兴文理学院 | Testing method for memorizing function of PTT fabric |
| CN106896055A (en) * | 2017-04-17 | 2017-06-27 | 江南大学 | A kind of pressure method of wrinkle recovery angle of woven fabrics using viscoelasticity theory measurement |
-
2013
- 2013-12-23 CN CN201320858855.9U patent/CN203705319U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894833A (en) * | 2015-06-24 | 2015-09-09 | 绍兴文理学院 | Testing method for memorizing function of PTT fabric |
| CN106896055A (en) * | 2017-04-17 | 2017-06-27 | 江南大学 | A kind of pressure method of wrinkle recovery angle of woven fabrics using viscoelasticity theory measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20161223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |