CN101782458B - Motion test device of motion law of shedding mechanism - Google Patents
Motion test device of motion law of shedding mechanism Download PDFInfo
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- CN101782458B CN101782458B CN2009102632556A CN200910263255A CN101782458B CN 101782458 B CN101782458 B CN 101782458B CN 2009102632556 A CN2009102632556 A CN 2009102632556A CN 200910263255 A CN200910263255 A CN 200910263255A CN 101782458 B CN101782458 B CN 101782458B
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- 238000001514 detection method Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
The invention discloses a motion test device of a motion law of a shedding mechanism, which comprises a heald frame driving device, a heald frame vibration detecting device and a shedding motion law generator, wherein the heald frame vibration detecting device is installed on the heald frame driving device; and the shedding motion law generator is respectively connected with the heald frame driving device and the heald frame vibration detecting device. The heald frame vibration detecting device detects the vibration signal (the motion law of the shedding mechanism) of the heald frame driving device, and then transmits the detected signal to the shedding motion law generator; and the shedding motion law generator feeds back the acquired information to the heald frame driving device, so that the shedding motion law is adapted to the speed of 900-1000 r/min of a loom.
Description
Technical field
The present invention relates to a kind of shedding mechanism of air-jet loom, be specifically related to a kind of exercise test device of the air-jet loom shedding mechanism characteristics of motion.
Background technology
Shedding mechanism is one of air-jet loom five great institutions, is to form the necessary important mechanism of fabric.Its task is the requirement according to fabric tissue, will penetrate successively warp thread on each page heald frame be divided into two-layer up and down to form shed open, treat weft yarn introduce after with shed closed, make through, weft yarn and form the shape that interweaves.The shedding mechanism of air-jet loom has: crank connecting link opening, cam shedding, dobby shedding and jacquard weave opening.
The travelling speed of loom is in the 10-16HZ scope, and the natural frequency of heald frame is in the 4-7HZ scope, and heald frame operates in the scope of its former rank natural frequency, so the vibration of heald frame is very big.Shedding mechanism has become to increase the major obstacle of air-jet loom rotating speed, and shake by force and the height of shedding mechanism carry the operating speed that has limited negative shedding mechanism.
At the shedding mechanism of air-jet loom, also do not measure the saying and the article of heald frame vibration under the running status at present.
Summary of the invention
In order to overcome deficiency of the prior art, the invention provides a kind of exercise test device of the shedding mechanism characteristics of motion, it can utilize the minimum vibration of heald frame as objective function, is used for exploring the 900-1000 rev/min speed of rule to adapt to loom of harness motion.
For solving the problems of the technologies described above, the exercise test device of a kind of shedding mechanism characteristics of motion of the present invention comprises harness frame drive device, heald frame vibration detection device and harness motion rule maker, wherein, described heald frame vibration detection device is installed on the described harness frame drive device, and described harness motion rule maker is connected on described harness frame drive device and the heald frame vibration detection device.Described heald frame vibration detection device detects the vibration signal (characteristics of motion of shedding mechanism) of described harness frame drive device, then measured signal is transferred to described harness motion rule maker, described opening rule maker feedback gained information is given described harness frame drive device, so that the rule of harness motion adapts to 900-1000 rev/min of speed of loom.
Described harness frame drive device, comprise an analog line driver, described analog line driver connects a servomotor, described servomotor is connected to an electronic gear, described electronic gear connects a gear pair, described gear pair is connected to a connecting rod endplay device, and described connection endplay device connects a connecting rod swing-bar mechanism, and described connecting rod swing-bar mechanism connects heald frame.
Preferably, the heald frame vibration detection device comprises that one is installed in the accelerometer A on the side shelves on described heald frame right side, accelerometer B on the side of the described heald frame of one installation, described accelerometer A, B are connected to a load amplifier respectively, described load amplifier is connected to an analog to digital converter, and described analog to digital converter is connected to a computing machine.Further, described accelerometer A, B directly are fixed on the described heald frame by bolt.
Preferably, described harness motion rule maker comprises described computing machine, and described computing machine connects a motion controller, and described motion controller connects the analog line driver of described harness frame drive device.
Utilize the opening rule maker institute feedack of this device to make among the present invention, the rule of effectively having finished harness motion adapts to 900-1000 rev/min of speed of loom, can't detect thereby solved the harness motion rule, and then can't effectively control the shortcoming of harness motion.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and embodiments.
Fig. 1 is the system chart of the exercise test device of the shedding mechanism characteristics of motion of the present invention.
Fig. 2 shakes for the structured flowchart of the exercise test device of the shedding mechanism characteristics of motion of the present invention.
Fig. 3 is the detailed diagram of harness frame drive device of the present invention.
Number in the figure explanation: 1. harness frame drive device, 2. heald frame vibration detection device, 3. harness motion rule maker, 4. accelerometer A, 5. accelerometer B, 6. load amplifier, 7. analog-to-digital conversion device, 8. computing machine, 9. motion control dress device, 10. bolt, 101. analog line drivers, 102. servomotors, 103. electronic gear, 104. gear pairs, 105. connecting rod endplay devices, 106. the connecting rod swing-bar mechanism, 107. heald frames.
Embodiment
Referring to Fig. 1, of the present invention one concrete implementation column: a kind of exercise test device of the shedding mechanism characteristics of motion comprises harness frame drive device 1, heald frame vibration detection device 2 and harness motion rule maker 3, wherein, heald frame vibration detection device 2 is installed on the harness frame drive device 1, and harness motion rule maker 3 is connected on harness frame drive device 1 and the heald frame vibration detection device 2.
Above-mentioned harness frame drive device 1 (see figure 3) comprises an analog line driver 101, analog line driver 101 connects a servomotor 102, servomotor 102 is connected to an electronic gear 103, electronic gear 103 connects a gear pair 104, gear pair 104 is connected to a connecting rod endplay device 105, connect endplay device 105 and connect a connecting rod swing-bar mechanism 106, the connecting rod swing-bar mechanism connects heald frame 107.
Preferably, heald frame vibration detection device 2 (see figure 2)s comprise that one is installed in the accelerometer A4 on the side shelves on heald frame 107 right sides, accelerometer B5 on the side of one installation heald frame, accelerometer A4, B5 are connected to load amplifier 6 respectively, load amplifier 6 is connected to an analog to digital converter 7, and analog to digital converter 7 is connected to a computing machine 8.Further, accelerometer A4, B5 directly are fixed on the heald frame 107 by bolt 10.
Preferably, described harness motion rule maker 3 (see figure 2)s comprise computing machine 8, and computing machine 8 connects a motion controller 9, and motion controller 9 connects the analog line driver 101 of harness frame drive device 1.
Utilize the exercise test device of the shedding mechanism characteristics of motion of the present invention, the course of work of 900-1000 rev/min of speed that the rule of finishing harness motion adapts to loom is as follows: accelerometer A4 measures the acceleration on the direction of motion, the acceleration of accelerometer B5 measuring vertical on direction of motion, be in the computing machine 8 of heald frame vibration detection device structure status analysis software is housed, with FFT (fast algorithm of discrete Fourier transform (DFT)) means, analyze the quantity and the spectrum of output vibration, at each motion stage, with the root-mean-square value of vibration signal and spectral density output quantity, show on the screen of computing machine 8 for observing as vibrating detector.Then, being in the computing machine 8 of harness motion rule maker 3 structure status can be to the pause angle and the isoparametric setting of the curve movement in lifting stage of the peak acceleration of the two limit positions that comprises heald frame 107, two limit positions, minimum and extreme higher position.Thereby get a desired effect.
Claims (2)
1. the exercise test device of a shedding mechanism characteristics of motion, comprise harness frame drive device (1), it has an analog line driver (101), described analog line driver (101) connects a servomotor (102), described servomotor (102) is connected to an electronic gear (103), described electronic gear (103) connects a gear pair (104), described gear pair (104) is connected to a connecting rod endplay device (105), described connecting rod endplay device (105) connects a connecting rod swing-bar mechanism (106), described connecting rod swing-bar mechanism connects heald frame (107), it is characterized in that:
Also comprise a heald frame vibration detection device (2), it has an accelerometer A (4) who is installed on the side shelves on described heald frame (107) right side, accelerometer B (5) on the side of the one described heald frame of installation (107), described accelerometer A (4), B (5) are connected to load amplifier (6) respectively, described load amplifier (6) is connected to an analog to digital converter (7), and described analog to digital converter (7) is connected to a computing machine (8);
One harness motion rule maker (3), it has described computing machine (8), and described computing machine (8) connects a motion controller (9), and described motion controller (9) connects the analog line driver (101) of described harness frame drive device (1).
2. the exercise test device of the shedding mechanism characteristics of motion according to claim 1 is characterized in that: described accelerometer A (4), B (5) directly are fixed on the described heald frame (107) by bolt (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102632556A CN101782458B (en) | 2009-12-17 | 2009-12-17 | Motion test device of motion law of shedding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102632556A CN101782458B (en) | 2009-12-17 | 2009-12-17 | Motion test device of motion law of shedding mechanism |
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| Publication Number | Publication Date |
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| CN101782458A CN101782458A (en) | 2010-07-21 |
| CN101782458B true CN101782458B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102632556A Active CN101782458B (en) | 2009-12-17 | 2009-12-17 | Motion test device of motion law of shedding mechanism |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072786B (en) * | 2010-12-22 | 2012-02-22 | 江苏万工科技集团有限公司 | Device for measuring bending torque of heald frame of loom |
| CN102828317A (en) * | 2012-09-12 | 2012-12-19 | 江苏万工科技集团有限公司 | Closed-loop control system for controlling harness frame vibration |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0761856A3 (en) * | 1995-09-04 | 1998-11-25 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Shedding control method and apparatus for a loom |
| CN1675420A (en) * | 2002-08-26 | 2005-09-28 | 津田驹工业株式会社 | Method of controlling electric opening device |
| CN101105421A (en) * | 2007-04-28 | 2008-01-16 | 江苏万工科技集团有限公司 | Dynamic simulation vibration measuring device of negative cam shedding mechanism |
| CN101387029A (en) * | 2007-09-12 | 2009-03-18 | 津田驹工业株式会社 | Anti-vibration device for loom heald frame |
-
2009
- 2009-12-17 CN CN2009102632556A patent/CN101782458B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0761856A3 (en) * | 1995-09-04 | 1998-11-25 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Shedding control method and apparatus for a loom |
| CN1675420A (en) * | 2002-08-26 | 2005-09-28 | 津田驹工业株式会社 | Method of controlling electric opening device |
| CN101105421A (en) * | 2007-04-28 | 2008-01-16 | 江苏万工科技集团有限公司 | Dynamic simulation vibration measuring device of negative cam shedding mechanism |
| CN101387029A (en) * | 2007-09-12 | 2009-03-18 | 津田驹工业株式会社 | Anti-vibration device for loom heald frame |
Non-Patent Citations (3)
| Title |
|---|
| JP特开平11－50344A 1999.02.23 |
| JP特开平7-189071A 1995.07.25 |
| 祝章琛 等.综框的模态识别.《纺织学报》.1989,第10卷(第9期),420－423. * |
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| CN101782458A (en) | 2010-07-21 |
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Effective date of registration: 20160714 Address after: 215223 Jiangsu Province, Wujiang District of Suzhou City Heng Shan Zhen Wan Ping Road Development Patentee after: Wujiang Wan Gong mechanical & electronic equipment corporation, Ltd Address before: 215223 Wujiang City, Jiangsu province development Wanping Road No. 108 Patentee before: Jiangsu Wangong Science and Technology Group Co., Ltd. |