CN1272618C - Pressure testing method and device in circumstances of single sided low tension compression of fabric - Google Patents

Pressure testing method and device in circumstances of single sided low tension compression of fabric Download PDF

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Publication number
CN1272618C
CN1272618C CN 200410015966 CN200410015966A CN1272618C CN 1272618 C CN1272618 C CN 1272618C CN 200410015966 CN200410015966 CN 200410015966 CN 200410015966 A CN200410015966 A CN 200410015966A CN 1272618 C CN1272618 C CN 1272618C
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China
Prior art keywords
fabric
electronic type
test
tension
measuring head
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Expired - Fee Related
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CN 200410015966
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Chinese (zh)
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CN1558202A (en
Inventor
敖利民
郁崇文
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Donghua University
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Donghua University
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Publication of CN1272618C publication Critical patent/CN1272618C/en
Expired - Fee Related legal-status Critical Current
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Abstract

The present invention provides a pressure testing device under the condition of low tension force compression of a single surface of fabric. The pressure testing device comprises an electronic force gage, an electronic testing table, a testing head, a fixing frame of the fabric, a rotary cam, a first clamp holder, a second clamp holder and tension heavy hammers, wherein the fixing frame of the fabric is used for supporting the fabric which needs to be tested; the fixing frame of the fabric comprises a bottom seat and two slide rods which are fixed on the bottom seat and arranged at intervals, wherein the fabric which needs to be tested is placed on the two slide rods and can slide or can be fixed on the slide rods; the fabric which needs to be tested moves horizontally under the transmission of the rotary cam; the first clamp holder is arranged on the bottom seat of the fixing frame of the fabric; the second clamp holder clamps the other end of the fabric; the tension heavy hammers are fixed at both ends of the clamp holders. The present invention can be used for testing the condition of pressure change when the hair feather part of the cloth surface of the fabric is compressed so as to simulate the mutual action of the fabric and skin. Simultaneously, the device can have multiple testing functions just needing to prepare a corresponding simple accessory, and the device is a testing instrument having the advantages of low cost, high precision and multiple functions.

Description

Single-sided fabric low-tension compression situation downforce method of testing and device
Technical field
The present invention relates to single-sided fabric low-tension compression situation downforce method of testing and device used in a kind of field of textiles, it directly applies to test fabric, and (the fabrics cloth cover filoplume partly compresses under single face low-tension compression situation, and fabric body is not by compression under the situation) situation of change of pressure, the situation of the prodding and itching feeling that may have when being used to estimate fabric and wearing next to the skin.
Background technology
The prodding and itching feeling that wears next to the skin fabric is the character that attracts people's attention most in the comfort of fabric, and at present, the research to fabric prodding and itching feeling objective examination instrument both at home and abroad is in the starting stage, does not also have reasonable and unified testing standard.There is not the instrument that be used for fabric prodding and itching feeling objective examination close with the present invention, approaching analogous instrument is as the fabric compressometer of one of KES-FB Fabric Style instrument complete sets of instrument on the structure, but this instrument is mainly used in the compression performance of test fabric, fabric adopts two-sided compression, and be used as the instrument of test cloth cover filoplume compression performance, precision does not reach requirement, and the method for the two-sided compression of fabric is from being can not reflect when contacting with skin the two interactional in essence.As shown in Figure 1: this fabric compressometer mainly is made up of three parts: test board, measuring head (going up attached sensor) and computing machine, and measuring head is fixed on the column of test board, can move up and down with certain speed by the small machine transmission, and the measuring head area is 2cm 2, the fabric sample that is opposite on the test board with test board in the process that descends is compressed, and the variation of pressure is transformed to electric signal by sensor, handles through outputing to computing machine after the digital-to-analog conversion again.
The weak point that this instrument exists when being used for fabric face filoplume part compression verification comprises:
(1) this instrument is the instrumentation of test fabric compression performance (two-sided pressurized), can not carry out the single face compression to fabric;
(2) this instrument is the instrument of test fabric compression performance, and the pressure that the range of instrument and precision are not suitable for test fabric filoplume compression stage changes;
(3) since fabric when contact with skin the interaction between the two except extruding, also have relative sliding friction, this instrument can not the simulation test fabric and the pressure variation of skin when contact pressure necessarily (contact apart from).
Summary of the invention
Technical matters to be solved by this invention provides a kind of single-sided fabric low-tension compression situation method for testing pressure and device, it can be used for analogue measurement fabric and the skin pressure when necessarily contact relative motion under the distance and changes the prodding and itching feeling situation that may have when wearing next to the skin with the evaluation fabric.
In order to solve the problems of the technologies described above, the invention provides a kind of single-sided fabric low-tension compression situation downforce proving installation, comprise: electronic type dynamometer, electronic type test board, measuring head, and also comprise: a fabric fixed mount, it is positioned between described Electronic Testing platform test surfaces and the electronic type dynamometer measuring head, and it is used to support the fabric that needs test; Wherein, described fabric fixed mount comprises base, and: two are fixed on the base and the slide bar of alternate certain intervals, and test fabric places on this two slide bar and can slide on slide bar or fix; One rotating cam, described test fabric is move left and right under the transmission of cam; First clamper, it is fixed on the fabric fixed mount base; Second clamper, it is clamped in the other end of fabric; Tension weight, it is fixed in the two ends of clamper.
The present invention also provides a kind of said apparatus that adopts to carry out method for testing pressure under the single-sided fabric low-tension compression situation, and it comprises the steps:
1), fabric is applied certain pre-tension, there is not supporting surface below the fabric;
2), the electronic type dynamometer moves downward with certain speed, when contacting with fabric, the electronic type dynamometer begins to store or changes to the force value that computing machine is exported different time immediately, is stored in data in the electronic type dynamometer and also can outputs in the computing machine after end of test (EOT) more together or in the special-purpose data storage device;
3), computing machine is handled data;
4), successively different samples is tested.
Pressure changing when the present invention can be used for test fabric cloth cover filoplume and partly compresses, the interaction between method of testing simulate fabric and the skin is the most reasonable, advanced on the principle in objective examination's instrument of research fabric prodding and itching feeling both at home and abroad at present.If also can be used to test the fabric compression performance of general meaning by the design of test board and measuring head, and the tensile property of the axial compression performance of bundle fiber and fiber, yarn.If only need to prepare corresponding simple annex, just can make instrument have multiple test function, be a kind of low cost, high precision, multi-functional testing tool.
Description of drawings
Fig. 1 is the structural representation of existing fabric compressometer.
Fig. 2 is the structural representation of single-sided fabric low-tension compression situation downforce proving installation of the present invention.
Fig. 3 is the structural representation of measuring head shown in Figure 2.
Fig. 4 is the structural representation of fabric fixed mount shown in Figure 2.
Embodiment
As shown in Figure 2: single-sided fabric low-tension compression situation downforce proving installation of the present invention comprises:
One electronic type dynamometer 1, because the acting force that single fiber triggering skin algesiroreceptor makes it to react is 100mN, so will being less than, the measuring accuracy of electronic type dynamometer equals 100mN, promptly about 0.1gf, in order in test process, to be operated in the reliable and stable range ability, the range of electronic type dynamometer is not excessive, is controlled at 200~250gf.The present invention adopts finished product IMADA high-precision digital pull and push dynamometer on the market, and this pressure is counted industrial, and field of textiles is not used.
One electronic type test board 2, the present invention adopts and the supporting electronic type test board of above-mentioned electronic type dynamometer, and the clamper clamping on tested column of electronic type dynamometer can certain speed move up and down.
One measuring head 3, the multiple measuring head that has of electronic type dynamometer can be selected to use, and the design adopts original supporting pressure test head to improve design (measuring head with electronic type pressure meter center-pole for being threaded).Although the precision of the test of electronic type dynamometer has reached 0.1gf, but the range of its finished product minimum is 250gf, for making the reliable and stable stage of test job at range, the present invention increases the test area of measuring head, can select 10cm for use according to different fabric puncture grades 2, 20cm 2Two kinds, simultaneously, this measuring head also can possess different shapes, as circular, square etc.In conjunction with shown in Figure 3: this measuring head 3 also comprises: an organic glass thin slice 31 is used to increase the contact area of former measuring head and tested fabric, to reduce the accuracy requirement to instrument.It is attached on the measuring head, and thickness is 1.0mm; One film 32, it is one deck polytetrafluoroethylene film, be attached to that the organic glass thin slice is outer, on the compression surface of contact of measuring head, to prevent the relative slippage (, being to have relative slippage hardly between fibre end and the skin) between fibre end and measuring head in view of the degree of roughness of relative fiber skin.
One fabric fixed mount 4, it is positioned between described Electronic Testing platform test surfaces and the electronic type dynamometer measuring head, can fix the fabric that needs test on it, so that fabric is carried out the low-tension compression verification.
In conjunction with shown in Figure 4: this fabric fixed mount 4 comprises:
Two slide bars 41, the alternate certain spacing of this two slide bar is used to support test fabric, fabric also can slide on slide bar simultaneously, with test fabric single face low-tension dynamic compression character, described fabric can be supported on this two slide bar, and slide bar is fixed on the base of fabric fixed mount.
One cam 42 is fixed on the axle of variable-ratio small machine, when motor rotates with certain speed, makes fabric produce side-to-side movement by cam rotation, changes with the dynamic pressure under test fabric and the certain contact pressure of measuring head.
Two clampers, first clamper 43 (left side clamper among the figure) is used for an end of set fabric, and it is fixed on the fabric fixed mount base; Second clamper 44 (right side clamper among the figure) is used for weight distribution with tension weight to whole fabric sample width, and it is clamped in the other end of fabric sample.
One tension weight 45 is used for fabric sample is applied certain pre-tension.It relies on two thin cord to be suspended on the two ends of clamper.
When electronic type pressure meter moved downward with certain speed, measuring head compressed fabric on it, owing to do not have supporting surface below the fabric sample, fabric is the single face compression.
The present invention also provides and adopts above-mentioned proving installation to come the method for testing of test fabric single face low-tension compression situation downforce, the actual conditions when it can be used for simulate fabric cloth cover filoplume and contacts with skin.It comprises following method of testing:
1, the pressure test under the single-sided fabric low-tension compression situation:
The situation of change (employing various sample) of (change pressure meter movement velocity) contact pressure under the different contact velocities of i test fabric with measuring head, with the fabric possibility prodding and itching feeling of investigation human body under the different motion state, and the shock response character of instrument.In this test process, the electronic type dynamometer that is clamped on the electronic type test board column clamper moves downward with certain speed (this speed can be set by the keyboard on the test board), when contacting with fabric, the electronic type dynamometer begins to store or changes to the force value that computing machine is exported different time immediately, and the descending extreme lower position of electronic type dynamometer can be by the setting control to test board.Being stored in data in the electronic type dynamometer also can output in the computing machine after end of test (EOT) or in the special-purpose data storage device, the work of treatment of data can realize by the organized data handling procedure more together.Can test different samples successively.
The situation of change of contact pressure (adopting same sample) when the ii test fabric repeatedly contacts repeatedly with measuring head, investigate repeatedly effect back cloth cover filoplume to the effect of skin normal pressure, and reject not the fibre end that can form enough stimulations to skin influence that the first time, test result may cause.Test process is the same, just finish test process after, electronic dynamometer is risen, do not change sample, proceed for the second time, for the third time ... compression verification.
The situation of change of above-mentioned test result when iii measures different fabric tension situation.Method of testing is the same, and the tension weight of Different Weight is changed in just each test.
2, measuring head keeps under different contact pressures (contact distance) situation with fabric, when different fine motion speed relatively and direction, the test of the fluctuation situation of contact pressure, with investigation favour cloth cover under the malleation situation not the filoplume of Diazolidinyl Urea to the influence of prodding and itching feeling.
Method of testing: the electronic type dynamometer is descending, go downwards to fabric and contact (spacing of contact can be carried out different choice) time and stop, at this moment start the small machine (speed of small machine can be set) on the fabric fixed mount, make the part of detecting fabric produce left and right sides to-and-fro movement by cam drive, at this moment fabric will change to the pressure of measuring head, and change value of pressure is recorded and can exports immediately.
3, adopt the bundle fiber stationary installation, can carry out the bundle fiber compression test, inquire into the compression and the crooked character of fiber.Fibrous bundle is fixed on the clamper, carries out compression experiment, and method is with describing in the method for testing 1.
Compression verification when 4, fabric contacts with the test board supporting surface can be inquired into the fabric compression performance of general meaning.Remove the fabric fixed mount, fabric sample places on the test board, carries out above-mentioned compression experiment.

Claims (9)

1, a kind of single-sided fabric low-tension compression situation downforce proving installation comprises: electronic type dynamometer (1), electronic type test board (2), measuring head (3), it is characterized in that, and also comprise:
One fabric fixed mount (4), it is positioned between described Electronic Testing platform (2) test surfaces and the electronic type dynamometer measuring head, and it is used to support the fabric that needs test;
Wherein, described fabric fixed mount (4) comprises base, and:
Two are fixed on the base and the slide bar (41) of alternate certain intervals, and test fabric places on this two slide bar and can slide on slide bar or fix;
One rotating cam (42), described test fabric is move left and right under the transmission of cam;
First clamper (43), it is fixed on the fabric fixed mount base;
Second clamper (44), it is clamped in the other end of fabric;
Tension weight (45), it is fixed in the two ends of clamper.
2, single-sided fabric low-tension compression situation downforce proving installation according to claim 1 is characterized in that described measuring head (3) is connected with screw thread with the electronic dynamometer center-pole.
3, single-sided fabric low-tension compression situation downforce proving installation according to claim 1 is characterized in that described measuring head is circular or square.
4, single-sided fabric low-tension compression situation downforce proving installation according to claim 1 is characterized in that described measuring head also comprises: an organic glass thin slice (31), and it is attached on the measuring head;
One film (32), it is attached to, and the organic glass thin slice is outer, on the compression surface of contact of measuring head.
5, single-sided fabric low-tension compression situation downforce proving installation according to claim 1 is characterized in that also comprise a motor, described cam is fixed on the axle of this motor.
6, a kind of described device of claim 1 that adopts carries out method for testing pressure under the single-sided fabric low-tension compression situation, it is characterized in that, comprises the steps:
1), fabric is applied certain pre-tension, there is not supporting surface below the fabric;
2), the electronic type dynamometer moves downward with certain speed, when contacting with fabric, the electronic type dynamometer begins to store or changes to the force value that computing machine is exported different time immediately, is stored in data in the electronic type dynamometer and also can outputs in the computing machine after end of test (EOT) more together or in the special-purpose data storage device;
3), computing machine is handled data;
4), successively different samples is tested.
7, a kind of described device of claim 1 that adopts carries out method for testing pressure under the single-sided fabric low-tension compression situation, it is characterized in that, comprises the steps:
1), fabric is applied certain pre-tension, there is not supporting surface below the fabric;
2), the electronic type dynamometer moves downward with certain speed, when contacting with fabric, the electronic type dynamometer begins to store or changes to the force value that computing machine is exported different time immediately, is stored in data in the electronic type dynamometer and also can outputs in the computing machine after end of test (EOT) more together or in the special-purpose data storage device;
3), computing machine is handled data;
4), the electronic type dynamometer is risen, do not change sample, proceed repeatedly compression verification.
8, a kind of described device of claim 1 that adopts carries out method for testing pressure under the single-sided fabric low-tension compression situation, it is characterized in that, comprises the steps:
1), fabric is applied certain pre-tension, there is not supporting surface below the fabric;
2), the electronic type dynamometer moves downward with certain speed, when contacting with fabric, the electronic type dynamometer begins to store or changes to the force value that computing machine is exported different time immediately, is stored in data in the electronic type dynamometer and also can outputs in the computing machine after end of test (EOT) more together or in the special-purpose data storage device;
3), computing machine is handled data;
4), fabric is applied different pre-tensions, promptly change the tension weight of Different Weight, proceed repeatedly to test.
9, a kind of described device of claim 1 that adopts carries out method for testing pressure under the single-sided fabric low-tension compression situation, it is characterized in that, comprises the steps:
1), the electronic type dynamometer is descending, goes downwards to when contacting with fabric to stop, the spacing of described contact can be carried out different choice;
2) make the part of detecting fabric produce left and right sides to-and-fro movement by cam drive, at this moment fabric will change to the pressure of measuring head, and change value of pressure is recorded and can exports immediately.
CN 200410015966 2004-01-18 2004-01-18 Pressure testing method and device in circumstances of single sided low tension compression of fabric Expired - Fee Related CN1272618C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200410015966 CN1272618C (en) 2004-01-18 2004-01-18 Pressure testing method and device in circumstances of single sided low tension compression of fabric

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Application Number Priority Date Filing Date Title
CN 200410015966 CN1272618C (en) 2004-01-18 2004-01-18 Pressure testing method and device in circumstances of single sided low tension compression of fabric

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CN1272618C true CN1272618C (en) 2006-08-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110618075A (en) * 2019-09-19 2019-12-27 东华大学 Contact angle measuring device with controllable test temperature and sample tension, method and application

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101788426A (en) * 2010-03-04 2010-07-28 河北科技大学 Device for testing axial compressibility of fiber material
CN103616286A (en) * 2013-12-03 2014-03-05 东华大学 Device and method for measuring compression performance of material with bending curvature
CN105157900B (en) * 2015-08-31 2017-11-14 北京交通大学 The prestressed measurement apparatus of membrane material
CN110618079A (en) * 2019-09-19 2019-12-27 东华大学 In-situ testing device and method for static and dynamic wettability and corrosion of fabric and application
CN110618073A (en) * 2019-09-19 2019-12-27 东华大学 Device and method for measuring fabric corrosion property suitable for long-term infiltration by heating and pressurizing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110618075A (en) * 2019-09-19 2019-12-27 东华大学 Contact angle measuring device with controllable test temperature and sample tension, method and application

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