CN104483468A - Drying rate tester - Google Patents
Drying rate tester Download PDFInfo
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- CN104483468A CN104483468A CN201410745510.1A CN201410745510A CN104483468A CN 104483468 A CN104483468 A CN 104483468A CN 201410745510 A CN201410745510 A CN 201410745510A CN 104483468 A CN104483468 A CN 104483468A
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Abstract
The invention belongs to the field of a tester, and particularly relates to a tester for testing drying speed of a textile. The drying rate tester is characterized in that a test table is installed on a base, and the test table is used for arranging a tested textile; the test table is provided with a test point, and a weep pipe group and a test sensor group are installed near the test point; the weep pipe group is installed above the test point; the test sensor group comprises a temperature sensor and an air speed sensor, the temperature sensor is used for detecting the temperature on the surface of the textile on the test point, and the air speed sensor is used for testing the air flow speed on the surface of the textile; a water sensor group is installed below the test point, and the water sensor group is used for detecting that whether water penetrates through the textile to drop off or not. According to the drying rate tester, the test data is automatically monitored by a single chip microprocessor, the experiment process can be automatically controlled through the test data, and the automatic control can be completely realized through the single chip microprocessor, so that the drying rate tester has advantages of high efficiency and small error.
Description
Technical field
The invention belongs to test machine field, particularly a kind of test machine for testing drying textile speed.
Background technology
Air-flow method is a kind of method of testing for test fabric rate of drying corresponding in maximum water absorbing capacity situation.The testing standard of reference in industry is U.S. AATCC 200-2013 (Drying Rate of Fabrics at their Absorbent Capacity:Air Flow Method).The method specifies, fabric is fixed on the outlet of the bellows of a specified size, these bellows are produced the air-flow of 2.5 meter per seconds at the opening part of clamping sample by fan, and gas velocity is by a hot-wire array Sensor monitoring.Meanwhile, the change of temperature in tested sample test process is monitored with a non-contact infrared temperature sensor.Before carrying out rate of drying test, by attempting the different amounts of dripping, the water absorbing capacity Vm that this fabric is maximum must be found.
Existing method of testing is by fabric while start, and under covering rapidly after hot plate central authorities drip, fabric also starts timing.Record temperature data is planted each second with a thermometrograph.Test duration measures with stopwatch.Process of dripping then performs with hand-held dropper.There is error in existing manual testing's method, simultaneously testing efficiency is lower, and in carrying out in one group of test, staff needs frequent operation, and efficiency is lower.
Summary of the invention
For solving in the test of above-mentioned rate of drying, staff needs frequent operation, work efficiency is told somebody what one's real intentions are, there is the defect of error in operation simultaneously, the invention provides a kind of automatic measurement textile temperature, automatically control the drying textile rate test machine that drips, this test machine can control test and logging test results automatically, has efficiency high, the advantage that error is little.
For achieving the above object, the invention provides a kind of rate of drying tester, it comprises base, test board, weep pipe group, testing sensor group and water sensor group;
Described base is provided with test board, and described test board is for placing tested yarn fabric;
Described test board is provided with test point, and described weep pipe group and testing sensor group are arranged near described test point;
Described weep pipe group is arranged on above test point, for dripping to test point;
Described testing sensor group comprises temperature sensor and air velocity transducer, the temperature of described temperature sensor textile surfaces on detection test points position, and described air velocity transducer is for testing the speed air flow of textile surface;
Described water sensor group is arranged on below described test point, and whether water sensor group has penetration by water yarn fabric for detecting and drip.
The corresponding test point position of described test board is provided with groove or through hole, and described water sensor group is arranged in described groove or through hole.
Described rate of drying tester also comprises air inlet system, and the air outlet of described air inlet system is relative with test point, and air inlet system is used for the wind providing fixing flow rate to test point.
Described weep pipe group is provided with ram pump and moisturizing solenoid valve, a moisturizing solenoid valve is respectively installed in ram pump water inlet end and water side, the moisturizing solenoid valve of ram pump water inlet end is for controlling flow to ram pump moisturizing and opportunity, and the moisturizing solenoid valve of ram pump water side is for controlling the surface water droplet in ram pump being added to fabric.
Described rate of drying tester also comprises moving system, described moving system comprises power wheel, main wheel, trailing wheel, curved bar, stock and slide rail, described power wheel connects the output terminal of a stepper motor, described power wheel and main tooth mesh, described main wheel both sides connect trailing wheel respectively, described trailing wheel and main tooth mesh, described trailing wheel is fixedly connected with curved bar, described stock one end connects curved bar one end, and the slide block on stock other end connecting sliding rail, power wheel can drive slide block to slide on described slide rail.
Described two slide rails arrange the plane orthogonal at place and described test board, and the intersection point of described two slide rail extended lines gives the top of described test point mutually.
Described two slide rails are 8mm ~ 12mm near the distance of test point end and test point.
Beneficial effect of the present invention:
1. a dry rate test instrument is by the temperature of temperature sensor textile surfaces on detection test points position, and air velocity transducer is for testing the speed air flow of textile surface; Water sensor group is arranged on below described test point, the water cut of water sensor group textile surfaces on detection test points position, this dry rate test instrument is by single-chip microcomputer automatic monitoring test data, simultaneously by the process of test data Experiments of Automatic Control, can completely by Automatic control of single chip microcomputer, there is efficiency high, the advantage that error is little.This tester reduces working strength, dripping of error may be brought by manual operation by using Single-chip Controlling, judge whether to leak, judge whether dry run, improve the degree of accuracy of every data in test process, avoid the error that manual operation may cause, ensure different time, different location accomplishes there is very high repeatability, comparability between test.
2. the corresponding test point position of test board is provided with groove or through hole, and described water sensor group is arranged in described groove or through hole, yarn fabric can on test board complete drawout, test data is more accurate.
3. rate of drying tester also comprises air inlet system, the air outlet of described air inlet system is relative with test point, air inlet system is used for the wind providing fixing flow rate to test point, state when normally being worn by air inlet system simulation, meets standard testing regulation simultaneously.
4. power wheel connects the output terminal of a stepper motor, power wheel and main tooth mesh, main wheel both sides connect trailing wheel respectively, trailing wheel and main tooth mesh, trailing wheel is fixedly connected with curved bar, stock one end connects curved bar one end, slide block on stock other end connecting sliding rail, power wheel can drive slide block to slide on described slide rail, mechanism drives weep pipe group and testing sensor group to slide alternately to test point by power wheel, complete the work of dripping and detecting alternately, realize dripping and detecting by simple structure, simultaneously avoid operationally the coexisting temperature sensor of fabric sample overcentre and the tube head that drips bumps against when mobile.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of rate of drying tester of the present invention;
Fig. 2 is rate of drying tester side-looking structural representation of the present invention;
Fig. 3 is that rate of drying tester of the present invention controls schematic diagram.
1-base in figure, 2-test board, 3-power wheel, 4-main wheel, 5-trailing wheel, 6-curved bar, 7-stock, 81-weep pipe group, 82-testing sensor group, 9-slide rail, 10-water sensor group.
Embodiment
A kind of rate of drying tester as shown in Figure 1 and Figure 2, it comprises base 1, test board 2, weep pipe group 81, testing sensor group 82 and water sensor group 10; Base 1 is provided with test board 2, test board 2 is for placing tested yarn fabric; Test board 2 is provided with test point, and weep pipe group 81 and testing sensor group 82 are arranged near test point; Weep pipe group 81 is arranged on above test point, for dripping to test point; Testing sensor group 82 comprises temperature sensor and air velocity transducer, the temperature of temperature sensor textile surfaces on detection test points position, and air velocity transducer is for testing the speed air flow of textile surface; Water sensor group 10 is arranged on below test point, and whether water sensor group 10 is for having penetration by water yarn fabric for detecting and drip.
This dry rate test instrument, by single-chip microcomputer automatic monitoring test data, simultaneously by the process of test data Experiments of Automatic Control, can select, completely by Automatic control of single chip microcomputer, to have efficiency high, the advantage that error is little.This tester reduces working strength, dripping of error may be brought by manual operation by using Single-chip Controlling, judge whether to leak, judge whether dry run, improve the degree of accuracy of every data in test process, avoid the error that manual operation may cause, ensure different time, different location accomplishes there is very high repeatability, comparability between test.
The corresponding test point position of test board 2 is provided with groove or through hole, and water sensor group 10 is arranged in groove or through hole.Yarn fabric can on test board 2 complete drawout, test data is more accurate.
Rate of drying tester also comprises air inlet system, and the air outlet of air inlet system is relative with test point, and air inlet system is used for the air-flow providing fixing flow rate to test point.State when normally being worn by air inlet system simulation, meets standard testing regulation simultaneously.
Air-flow is formed by the blower fan be fixed on rear side of bellows, and gas velocity is recorded by the hot wire anemometer be placed in above bellows round exit.Wind gage is connected with single-chip microcomputer, and by the rotating speed of Single-chip Controlling blower fan, to meet in n.s. situation, the requirement of round exit 2.5 meter per second wind speed.After placing sample, wind gage is for monitoring the gas velocity through sample surfaces.
Described weep pipe group 81 is provided with ram pump and moisturizing solenoid valve, a moisturizing solenoid valve is respectively installed in ram pump water inlet end and water side, the moisturizing solenoid valve of ram pump water inlet end is for controlling flow to ram pump moisturizing and opportunity, and the moisturizing solenoid valve of ram pump water side is for controlling the surface water droplet in ram pump being added to fabric.Moisturizing solenoid valve for control to pump moisturizing flow and opportunity textile surface process of dripping come by ram pump.Respectively there is a unidirectional moisturizing solenoid valve at ram pump two ends, one for fabric water filling, one for ram pump moisturizing.The moisture of 0.5 milliliter can drip on fabric for 2000 times by this precision plunger pump.The control of ram pump has been come by single-chip microcomputer.
Rate of drying tester also comprises moving system, moving system comprises power wheel 3, main wheel 4, trailing wheel 5, curved bar 6, stock 7 and slide rail 9, power wheel 3 connects the output terminal of a stepper motor, power wheel 3 engages with main wheel 4 tooth, and main wheel 4 both sides connect trailing wheel 5 respectively, and trailing wheel 5 engages with main wheel 4 tooth, trailing wheel 5 is fixedly connected with curved bar 6, stock 7 one end connects curved bar 6 one end, and the slide block on stock 7 other end connecting sliding rail 9, power wheel 3 can drive slide block to slide on slide rail 9.Mechanism drives weep pipe group 81 and testing sensor group 82 to slide alternately to test point by power wheel 3, complete the work of dripping and detecting alternately, realize dripping and detecting by simple structure, the temperature sensor of fabric sample overcentre of simultaneously avoiding operationally coexisting and tube head collision when mobile of dripping.
The intersection point of plane orthogonal and test board 2, two slide rail 9 extended lines that two slide rails 9 arrange place gives the top of test point mutually.Two slide rails 9 are 8mm ~ 12mm near the distance of test point end and test point.
Testing sensor group 82 comprises infrared temperature sensor and air velocity transducer, together with being installed to by infrared temperature sensor, and makes infrared temperature sensor operationally be positioned at above sample 1 centimeters just to sample center with air velocity transducer horizontal Tile.When dripping tube head operationally tube head contacts to guarantee water filling with fabric face, moisture transmission is complete, gets rid of error tube head hanging the globule and cause.
Meanwhile, moving system meets repeatedly dripping in test process, and whether test aqueous water leaks through sample, air-dry sample step.Physical construction central authorities are by the hollow sensor axle of motor by gear drive.One section of axle is equipped with moisture transducer prejudicially with a disk, makes sensor operationally close to fabric lower surface, can leave textile when not working.The sensor segments of stock 7 has breach can by pickup wire income wherein.The shaft holder at stock 7 opposite side place is equipped with collector ring and can ensures that, in sensor axis rotary course, pickup wire can not be intertwined.Sensor axis and the rotating shaft of two curved bars 6 link together respectively by the gear of ratio of gear 1:2.The every half-twist of sensor axis, the rotating shaft of two curved bars 6 rotates 180 ° respectively.Three axles are all fixed on two pieces of shaft holders.Curved bar 6 rotating shaft is equipped with a bigger main wheel 4 respectively away from one end of water sensor group 10.Trailing wheel 5 fixes a curved bar 6 with two screws.Curved bar 6 one end is connected with stock 7 again, and stock 7 other end is connected with slide block.Slide block leaves threaded hole and can load stock 7, stock 7 leading portion is equipped with temperature sensor, air velocity transducer respectively, and another stock 7 leading portion is equipped with weep pipe group 81.Slide block can slide respectively on two slide rails 9.Article two, slide rail 9 becomes certain low-angle respectively at vertical direction, bumps against when mobile with the temperature sensor of fabric sample overcentre of avoiding operationally coexisting and the tube head that drips.
In addition, this device is also provided with the position transducer for detecting weep pipe group 81 and testing sensor group 82 position, position transducer is divided into three, upper, middle and lower, and weep pipe group 81 and testing sensor group 82, when slide rail 9 centre position, are applicable to load textile to be tested; Weep pipe group 81 under, testing sensor group 82 is when upper, and weep pipe group 81 is dripped to textile to be tested; If weep pipe group 81 is upper, testing sensor group 82 under time, testing sensor group 82 is when upper, and testing sensor group 82 tests the experimental data of textile to be tested.
This physical construction can realize temperature sensor, the staggered operation of air velocity transducer and the tube head that drips.Simultaneously the eccentric rotary of moisture transducer can be placed horizontally at when dripping to detect below sample whether have water to pass sample drop under and hold up when testing and depart from sample center and avoid upsetting air-flow.
During test, according to above-mentioned standard, first test man presses " Load Sample " (load sample) button on instrument, and Single-chip Controlling motor drives above-mentioned physical construction that testing sensor group 82 side and weep pipe group 81 side slide are all mediated.After installing sample, the hand-held surface plate of test man or double dish or other containers are placed in below the tube head that drips, and press " Purge " (exhaust) button, accurate peristaltic pump work from instrument inner water-tank continuous pumpage to the tube head that drips to discharge water inner air tube.Then, test man presses " Load Sample " button again.Single-chip Controlling motor drive machinery device makes to drip tube head decline moisture transducer rotation simultaneously to sample central authorities.Then, the tube head that drips drips 0.100 ± 0.003mL water to sample surfaces, under whether water sensor group 10 groups monitoring has water to pass sample drop.Then, under the driving of mechanical hook-up, water sensor group 10 turns on, and weep pipe group 81 rises, and testing sensor group 82 declines.Whether air-dry by using testing sensor group 82 to monitor fabric.After textile is air-dry, mechanical hook-up drives water sensor group 10 to go back to, and weep pipe group 81 declines, and testing sensor group 82 rises.
As shown in Figure 3, the data that air velocity transducer, temperature sensor, water sensor group 10 are tested pass to single-chip microcomputer, single-chip microcomputer is by the Data Control stepper motor that receives, fan, ram pump, moisturizing solenoid valve and water injecting electromagnetic valve work, tester also can control the course of work of the machine according to power switch, also can control the work of this tester according to controller simultaneously, single-chip microcomputer receive data also can synchronous recording in controller, check dependence test record to facilitate staff.
Air-flow method rate of drying tester is positioned over above the round exit that diameter is the bellows of 130mm for test fabric, and have the effect of fixing air-flow bottom fabric under, a kind of method of testing of rate of drying when adding a certain amount of (such as 0.1ml) water above fabric.
Air-flow is formed by the blower fan be fixed on rear side of bellows, and gas velocity is recorded by the hot wire anemometer be placed in above bellows round exit.Wind gage is connected with single-chip microcomputer, and by the rotating speed of Single-chip Controlling blower fan, to meet in n.s. situation, the requirement of round exit 2.5 meter per second wind speed.After placing sample, wind gage is for monitoring the gas velocity through sample surfaces.
Fabric face process of dripping has been come by ram pump.Respectively there is a Unidirectional solenoid valve at ram pump two ends, one for fabric water filling, one for ram pump moisturizing.The moisture of 0.5 milliliter can drip on fabric 2000 times by this precision plunger pump, and precision is considerably beyond the requirement (standard-required adds 0.100 ± 0.003mL water to fabric face) of AATCC200 standard.The control of ram pump has been come by single-chip microcomputer.
The change of fabric surface temperature then has an infrared temperature sensor to measure, and is non-contact measurement mode.The drip change of front and back temperature of fabric has this temperature sensor to monitor, and this series of data is uploaded to upper computer software, judges by upper computer software the state whether fabric reaches dry.
The computing machine used when infrared temperature sensor data are transferred to test collected by single-chip microcomputer.After recording temperature, get 7 points at the most steep part of temperature-time curve, get back to the flat part after near equilibrium temperature in temperature and get 25 points, then by using equation of linear regression to find two straight lines.Article two, need to use the test end time when horizontal ordinate of straight-line intersection is final calculating.Then rate of drying R is obtained with the amount of dripping V divided by the test duration.
The automatic turning mechanism of the machine, coordinate single-chip microcomputer, upper computer software, what make the maximum water absorbing capacity of sample tests full-automation.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; technical scheme of the present invention is modified or equivalent replacement, all belong to protection scope of the present invention.
Claims (7)
1. a rate of drying tester, is characterized in that: it comprises base, test board, weep pipe group, testing sensor group and water sensor group;
Described base is provided with test board, and described test board is for placing tested yarn fabric;
Described test board is provided with test point, and described weep pipe group and testing sensor group are arranged near described test point;
Described weep pipe group is arranged on above test point, for dripping to test point;
Described testing sensor group comprises temperature sensor and air velocity transducer, the temperature of described temperature sensor textile surfaces on detection test points position, and described air velocity transducer is for testing the speed air flow of textile surface;
Described water sensor group is arranged on below described test point, and whether water sensor group has penetration by water yarn fabric for detecting and drip.
2. a kind of rate of drying tester according to claim 1, is characterized in that: the corresponding test point position of described test board is provided with groove or through hole, and described water sensor group is arranged in described groove or through hole.
3. a kind of rate of drying tester according to claim 1, it is characterized in that: described rate of drying tester also comprises air inlet system, the air outlet of described air inlet system is relative with test point, and air inlet system is used for the wind providing fixing flow rate to test point.
4. a kind of rate of drying tester according to claim 1, it is characterized in that: described weep pipe group is provided with ram pump and moisturizing solenoid valve, a moisturizing solenoid valve is respectively installed in ram pump water inlet end and water side, the moisturizing solenoid valve of ram pump water inlet end is for controlling flow to ram pump moisturizing and opportunity, and the moisturizing solenoid valve of ram pump water side is for controlling the surface water droplet in ram pump being added to fabric.
5. a kind of rate of drying tester according to claim 1, it is characterized in that: described rate of drying tester also comprises moving system, described moving system comprises power wheel, main wheel, trailing wheel, curved bar, stock and slide rail, described power wheel connects the output terminal of a stepper motor, described power wheel and main tooth mesh, described main wheel both sides connect trailing wheel respectively, described trailing wheel and main tooth mesh, described trailing wheel is fixedly connected with curved bar, described stock one end connects curved bar one end, slide block on stock other end connecting sliding rail, power wheel can drive slide block to slide on described slide rail.
6. a kind of rate of drying tester according to claim 5, is characterized in that: described two slide rails arrange the plane orthogonal at place and described test board, and the intersection point of described two slide rail extended lines gives the top of described test point mutually.
7. a kind of rate of drying tester according to claim 6, is characterized in that: described two slide rails are 8mm ~ 12mm near the distance of test point end and test point.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410745510.1A CN104483468B (en) | 2014-12-09 | 2014-12-09 | Drying rate tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410745510.1A CN104483468B (en) | 2014-12-09 | 2014-12-09 | Drying rate tester |
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| CN104483468A true CN104483468A (en) | 2015-04-01 |
| CN104483468B CN104483468B (en) | 2019-12-24 |
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| CN1719228A (en) * | 2004-07-09 | 2006-01-11 | 北京林业大学 | Vacuum overheat steam drying experimental device for wood material and its detecting method |
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| CN202033312U (en) * | 2011-04-17 | 2011-11-09 | 宁波纺织仪器厂 | Textile heat resistance and humidity resistance tester |
| CN102243193A (en) * | 2011-04-17 | 2011-11-16 | 宁波纺织仪器厂 | Fabric heat and humidity resistance tester |
| CN103884972A (en) * | 2014-03-31 | 2014-06-25 | 刘勇 | Method for hydrophobicity detection and aging evaluation of composite insulator |
| CN204302279U (en) * | 2014-12-09 | 2015-04-29 | 深圳市瑞锋仪器有限公司 | A kind of rate of drying tester |
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2014
- 2014-12-09 CN CN201410745510.1A patent/CN104483468B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719228A (en) * | 2004-07-09 | 2006-01-11 | 北京林业大学 | Vacuum overheat steam drying experimental device for wood material and its detecting method |
| CN101273703A (en) * | 2007-03-29 | 2008-10-01 | 张全胜 | Full-automatic energy-saving water-saving infiltrating irrigation device |
| CN201057735Y (en) * | 2007-06-18 | 2008-05-14 | 昆明理工大学 | Automatic dripping irrigation equipment for potted flower |
| US20100326221A1 (en) * | 2007-06-25 | 2010-12-30 | Fiti Testing & Research Institute | Method and apparatus for measuring drying time of quick wet and dried fabrics |
| CN202033312U (en) * | 2011-04-17 | 2011-11-09 | 宁波纺织仪器厂 | Textile heat resistance and humidity resistance tester |
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| CN204302279U (en) * | 2014-12-09 | 2015-04-29 | 深圳市瑞锋仪器有限公司 | A kind of rate of drying tester |
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Address after: 518000 floor 11, R & D building, wandaiheng high tech Industrial Park, No. 171, gongchang Road, Zhenmei community, Xinhu street, Guangming District, Shenzhen, Guangdong Province Patentee after: SHENZHEN REFOND EQUIPMENT CO.,LTD. Address before: 518000 6th floor, building J, Shifeng Science Park, No. 6, Zhongtai Road, Loucun, Gongming street, Guangming New Area, Shenzhen, Guangdong Province Patentee before: SHENZHEN REFOND EQUIPMENT CO.,LTD. |