CN104483316A - On-line density measuring instrument for three-dimensional braided fabrics - Google Patents
On-line density measuring instrument for three-dimensional braided fabrics Download PDFInfo
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- CN104483316A CN104483316A CN201410838803.4A CN201410838803A CN104483316A CN 104483316 A CN104483316 A CN 104483316A CN 201410838803 A CN201410838803 A CN 201410838803A CN 104483316 A CN104483316 A CN 104483316A
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Abstract
The invention discloses an on-line density measuring instrument for three-dimensional braided fabrics. The on-line density measuring instrument comprises a base, wherein four self-locking universal wheels are arranged at the lower part of the base; an upright post and a guide rod which are mounted abreast are arranged on the base; the upright post is connected with the upper end of the guide rod by virtue of an upper cross beam and connected with the lower end of the guide rod by virtue of a lower cross beam; a driven belt pulley is arranged on the upper cross beam; a driving belt pulley is arranged on the lower cross beam; the driven belt pulley is in transmission connection with the driving belt pulley by virtue of a synchronous toothed belt; a motor is mounted on the base; a motor shaft of the motor is connected with the driving belt pulley by virtue of a shaft coupler; a camera platform is mounted on the guide rod; a camera is mounted on the camera platform; the camera platform is fixed with the synchronous toothed belt by virtue of a cover plate and a fastening screw; the motor is connected with a singlechip; the singlechip and the camera are connected with the camera by virtue of a data line. The on-line density measuring instrument has the advantages that an image processing technology is adopted, and braided fabrics are not needed to directly contact through on-line measurement, so that the measurement faults can be reduced, and the measurement accuracy and speed are increased.
Description
Technical field
The present invention relates to a kind of on-line measurement instrument, particularly a kind of density on-line measurement instrument for three-dimensional knit fabric.
Background technology
D braided composites has the good characteristics such as quality is light, specific strength is large, fatigue performance is good, mechanical property can design, high temperature resistant, frictional behaviour is good because of it, obtains extensive utilization in each technical fields such as Aero-Space, automobile, boats and ships, building, bioengineering.The structure of three-dimensional braid and the performance of density on D braided composites have direct impact.Therefore, in the manufacturing process of braid, monitoring braid density has significant engineering significance in real time.Traditional measuring method measures the weft yarn height with fabric axis being parallel with steel ruler, then calculate Density by means of the conversion relation that various fabric specific bus flower joint and axis save.When the method is measured on the one hand, steel ruler directly need contact braid, inevitably produces with fabric and rub and collision, causes fabric face fluffing or local tissue structures to change, thus affects the performances such as corrosion-resistant, the endurance of compound substance; On the other hand, when composite element size is comparatively large, three-dimensional braid needs suspension higher in braiding process, utilize steel ruler to measure obvious inconvenience in real time, and measuring accuracy is limited.Document is also had to propose to utilize the digital display height gauge with laser measuring head to replace steel ruler to carry out non-contact measurement, avoid fibre damage, but, in measuring process, need range estimation adjustment laser light belt angle consistent with the angle of weft yarn in fabric forming process, now the collimation error certainly exists, and measures precise degrees inevitable limited.
Summary of the invention
The object of the invention is to overcome above deficiency, providing a kind of and adopting image processing techniques, reducing measuring error, improving the three-dimensional knit fabric density on-line measurement instrument of measuring accuracy and speed.
Object of the present invention is achieved through the following technical solutions: a kind of three-dimensional knit fabric density on-line measurement instrument, comprise base, base bottom is equipped with four can the universal wheel of self-locking, base is provided with the column and guide rod installed side by side, connected by entablature between column and the upper end of guide rod, connected by sill between column and the lower end of guide rod, entablature is provided with driven pulley, sill is provided with driving pulley, connected by Synchronous Belt Drives between driven pulley and driving pulley, base is provided with motor, the motor shaft of motor is connected with driving pulley by shaft coupling, guide rod is provided with Camera Platform, Camera Platform is provided with video camera, Camera Platform is fixed by cover plate and trip bolt and synchronous cog belt, motor is connected with single-chip microcomputer, single-chip microcomputer is all connected with computing machine by data line with video camera.
Further improvement of the present invention is: be threaded connection fixing between described base and column, guide rod, the length of column and guide rod can be determined according to the height of braid in use procedure, so that measuring instrument has rational range ability, in braiding process, instruction is sent by computing machine, rotated by Single-chip Controlling motor, drive video camera to rise, drop to desired height by synchronous cog belt.
The present invention compared with prior art has the following advantages: adopt image processing techniques, realize the on line non contact measurement of three-dimensional knit fabric density, avoid error that manual operation brings and the damage to fabric face, improve measuring accuracy and speed, improve the real-time monitoring level in three-dimensional knit fabric braiding process.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 be in Fig. 1 A to structural representation;
Number in the figure: 1-base, 2-column, 3-guide rod, 4-entablature, 5-sill, 6-driven pulley, 7-driving pulley, 8-synchronous gear belt wheel, 9-motor, 10-Camera Platform, 11-video camera, 12-cover plate, 13-trip bolt, 14-single-chip microcomputer, 15-computing machine, 16-universal wheel.
embodiment:
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
Invention shows a kind of embodiment of three-dimensional knit fabric density on-line measurement instrument, comprise the base 1 on a square floor, being equipped with four below base 1 can the universal wheel 2 of self-locking, can move at any time or fix, be threaded connection above base and be fixed with circular abutment 2 and chamfered edge cylinder guide 3, column 2 is for supporting, guide rod 3 not only has supporting role, also has guide effect, entablature 4 and sill 5 is separately installed with at column 2 and guide rod 3 top and bottom, on, sill installs a belt wheel respectively, transmission is realized by synchronous cog belt 8 between belt wheel, base 1 is provided with motor 9, motor output shaft is connected with sill motor by shaft coupling, realize driving, lower end belt wheel is just driving wheel, upper end belt wheel is then engaged wheel.Guide rod 3 is provided with Camera Platform 10, platform is used for installing video camera 11 specially, and Camera Platform is fixed with synchronous cog belt 8 by cover plate 12 and trip bolt 13.When motor forward and backward driving pulley operates, Camera Platform 10 just rises with synchronous cog belt 8, declines.Computing machine 15 is connected with video camera 11, single-chip microcomputer 14 respectively by data line, and single-chip microcomputer 14 is connected with motor 9 simultaneously.User can determine the length of column and guide rod according to the height of braid, so that measuring instrument has rational range ability.
On-line measurement instrument of the present invention by establishment relative program, realizes the on line non contact measurement of three-dimensional knit fabric density in use.In use, first traverse measurement instrument, makes the camera lens of video camera 11 parallel with textile surface, then locks universal wheel 16, fixation measuring instrument.In braiding process, send instruction by computing machine 15, control motor 9 by single-chip microcomputer 14 and rotate, drive video camera 11 to rise, drop to desired height by synchronous cog belt 8; And then send order tape video camera 11 by computing machine 15, video camera 11 obtains braid picture, then is transferred to computing machine 15 through image procossing, can obtain three-dimensional knit fabric surface weave angle, program, in conjunction with specific braiding structure and yarn diameter, can convert and obtain braid density.This procedure avoids the error that manual operation brings, improve measuring accuracy and speed, improve the real-time monitoring level in three-dimensional knit fabric braiding process.
Claims (2)
1. a three-dimensional knit fabric density on-line measurement instrument, comprise base (1), described base (1) bottom is equipped with four can the universal wheel (16) of self-locking, it is characterized in that: described base (1) is provided with the column (2) and guide rod (3) installed side by side, connected by entablature (4) between the upper end of described column (2) and described guide rod (3), connected by sill (5) between the lower end of described column (2) and described guide rod (3), described entablature (4) is provided with driven pulley (6), described sill (5) is provided with driving pulley (7), be in transmission connection by synchronous cog belt (8) between described driven pulley (6) and described driving pulley (7), described base (1) is provided with motor (9), the motor shaft of described motor (9) is connected with described driving pulley (7) by shaft coupling, described guide rod (3) is provided with Camera Platform (10), described Camera Platform (10) is provided with video camera (11), described Camera Platform (10) is fixed with described synchronous cog belt (8) by cover plate (12) and trip bolt (13), described motor (9) is connected with single-chip microcomputer (14), described single-chip microcomputer (14) is all connected with computing machine (15) by data line with described video camera (11).
2. three-dimensional knit fabric density on-line measurement instrument according to claim 1, is characterized in that: be threaded connection fixing between described base (1) and described column (2), guide rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838803.4A CN104483316B (en) | 2014-12-30 | 2014-12-30 | On-line density measuring instrument for three-dimensional braided fabrics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838803.4A CN104483316B (en) | 2014-12-30 | 2014-12-30 | On-line density measuring instrument for three-dimensional braided fabrics |
Publications (2)
| Publication Number | Publication Date |
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| CN104483316A true CN104483316A (en) | 2015-04-01 |
| CN104483316B CN104483316B (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410838803.4A Active CN104483316B (en) | 2014-12-30 | 2014-12-30 | On-line density measuring instrument for three-dimensional braided fabrics |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104850098A (en) * | 2015-04-29 | 2015-08-19 | 福建省晋江市华宇织造有限公司 | Production online automatic monitoring numerical control system based on warp knitting machine |
| CN106651891A (en) * | 2016-10-13 | 2017-05-10 | 天津工业大学 | Three-dimensional braided fabric composite material perform surface parameter measurement method |
Citations (2)
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| CN201004053Y (en) * | 2007-02-06 | 2008-01-09 | 中材科技股份有限公司 | Online density measurement instrument for solid basketwork |
| CN101832804A (en) * | 2010-04-22 | 2010-09-15 | 常州市易用科技有限公司 | Oil-water metering instrument |
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2014
- 2014-12-30 CN CN201410838803.4A patent/CN104483316B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004053Y (en) * | 2007-02-06 | 2008-01-09 | 中材科技股份有限公司 | Online density measurement instrument for solid basketwork |
| CN101832804A (en) * | 2010-04-22 | 2010-09-15 | 常州市易用科技有限公司 | Oil-water metering instrument |
Non-Patent Citations (3)
| Title |
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| 刘剑云: "利用图像识别技术测量织物密度的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 潘志娟 主编: "《纤维材料近代测试技术》", 30 September 2005 * |
| 谢莉青: "基于图像处理分析的机织物构成要素的综合识别方法与装置", 《中国博士学位论文全文数据库 信息科技辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104850098A (en) * | 2015-04-29 | 2015-08-19 | 福建省晋江市华宇织造有限公司 | Production online automatic monitoring numerical control system based on warp knitting machine |
| CN106651891A (en) * | 2016-10-13 | 2017-05-10 | 天津工业大学 | Three-dimensional braided fabric composite material perform surface parameter measurement method |
| CN106651891B (en) * | 2016-10-13 | 2023-05-09 | 天津工业大学 | Surface parameter measurement method for three-dimensional braided fabric composite material prefabricated member |
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| CN104483316B (en) | 2017-04-26 |
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Effective date of registration: 20221214 Address after: No.388, North Changjiang Road, Gangzha District, Nantong City, Jiangsu Province, 226000 Patentee after: JIANGSU GOLDEN AUTUMN ELASTIC FABRICS Co.,Ltd. Address before: 226000 No. 9 Siyuan Road, Chongchuan District, Nantong City, Jiangsu Province Patentee before: NANTONG University |
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