CN103616286A - Device and method for measuring compression performance of material with bending curvature - Google Patents
Device and method for measuring compression performance of material with bending curvature Download PDFInfo
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Abstract
The invention provides a device and a method for measuring compression performance of a material with a bending curvature. The device comprises an upper beam and is characterized in that a displacement driving mechanism is fixed on the upper beam and is connected with a force measuring mechanism, and a support pin is arranged below the force measuring mechanism. The method provided by the invention is the first one for measuring the compression performance of a fabric or a yarn with a bending curvature form, and especially, the compression performance of a fabric or yarn sample with a variable bending curvature form can be measured. The device is simple in structure and high in measurement precision and can be used for measuring the compression performance rapidly.
Description
Technical field
The invention belongs to weaving precision measuring instrument technical field, relate to column (yarn and rope class) and tablet (fabric, film and compound substance thereof) at the measurement mechanism with the compression performance under bending curvature form, applicable to the research of the yarn thickness under different curvature form, the fluffy performance of yarn and fabric feeling etc.
Background technology
In the process of yarn and fabric, often produce mechanics reciprocation with mechanical fitting, as the cylindrical roller in spinning process and yarn alternately, the winding of woven middle yarn and cylindrical warp let-off axle and fabric etc.In this type of textile process process, because one of yarn and the suffered external force of fabric are compression performance, this performance is determining structure and the performance of finished product, as the yarn that forms fabric changes because of the section morphology that deforms, both affect tightness and the configuration of surface of fabric, determined again spreadability, gas penetration potential, drapability, gloss and the fluffy degree thereof of fabric and the main performance of the plentiful base style feel such as all.Therefore, in order to meet the comfortableness demand of textile, must quantification characterize the compression performance between yarn and fabric and cylindrical textile machinery accessories, carry out the final textile of production and processing.
And existing yarn thickness surveying instrument employing is microscopic examination method, by the contrast of pickup image and scaling ruler, obtain the diameter of yarn, report is measured in the specialization that has no yarn radial compressive property, what have is only to measure by the compressometer of fabric, but the fabric that the measuring method that existing fabric and yarn compressometer are implemented is all planes places and the compression performance of yarn are measured, non-have the yarn of bending curvature or the compression performance of fabric is measured.Therefore, compression performance under fabric and yarn plane placement condition is measured with compression performance measurements having under bending curvature form condition and be there are differences, fail Efficient Characterization with instruct design of Structural Parameters and the process parameter optimizing to the textile machinery accessories of fabric and yarn effect in actual woven process.Patent of invention (the Yu Weidong Du Zhao Qun Yang Ping Wang Jin one-tenth that has mandate, the combination metering device of a kind of fabric and yarn mechanics index and purposes, ZL200410053597.2) yarn under the certain bending curvature form of trial analysis and the compression performance of fabric, its compression measuring mechanism as shown in Figure 3, employing twin-stage contact block support 33 and slidably spring block 34 form, the surface of contact of twin-stage contact block support 33 both sides fixed blocks and spring block 34 bottom surface normalities are in same level, by the stepper motor 21 being packed on upper beam 1, by worm screw 22 and worm gear 23 rotation rotating screw bolts 24, drive holding plates 25 to drive twin-stage contact block supports 32 and spring block 33 to move down, when spring block touches sample, produce pressure-acting in holder pin 4, and retraction, twin-stage contact block support 33 continues to move down, when both sides fixed block touches holder pin 4, there is again an acting force, provide thus the thickness of fabric or the diameter of yarn, the method only provides the thickness of fabric, and fail to obtain Real Time Compression curve, what its principle was tested is the thickness measure under fabric or yarn stretching condition, or be placed in parallel in thickness measure on holder pin, different from the thickness measure under flecition, and fail to realize real-time compression force-displacement curve and measure, cause the compression Analysis on Mechanism of fabric and sample of yarn and distinct it is difficult with the relation of structure.And the present invention formally makes up this deficiency, by adopting high-precision force sensor 31 direct induced compression power, show in real time compression measuring process and corresponding compression performance characteristic curve, and measuring accuracy is high, the compressive features parameter obtaining is many, can characterize more comprehensively the compression performance of yarn and fabric.
Therefore, in practicality and theoretical research, be all necessary to research and develop the measurement mechanism that can analyze the compression performance between yarn and fabric and cylindrical textile machinery accessories, can accurately obtain the compression performance characteristic curve of yarn and fabric and analyze objectively yarn and fabric ground compression performance, the weavability energy of evaluation yarn, fabric compression performance prediction and evaluation Fabric Style thereof are had to extremely profound significance.
Summary of the invention
The object of this invention is to provide a kind of coated or be wound in fabric on right cylinder or compression performance measurement mechanism and the method for yarn, it is applicable to measure the right cylinder of different radii or variable curvature and the compression performance of yarn and fabric, can measure column (yarn and rope class) and tablet (fabric, film and compound substance thereof) compression performance.
In order to achieve the above object, the invention provides a kind of compression performance measurement mechanism with the material of bending curvature, comprise upper beam, it is characterized in that, on described upper beam, be fixed with displacement drive mechanism, displacement drive mechanism connects power measuring mechanism, and power measuring mechanism below is provided with holder pin.
Preferably, described displacement drive mechanism comprises stepper motor, worm screw, worm gear, rotating screw bolt and holding plate, stepper motor and rotating screw bolt are installed on upper beam, stepper motor connecting worm, turbine coupling is fixed on worm screw, turbine connection of rotating screw rod, holding plate is socketed on rotating screw bolt, described power measuring mechanism comprises high-precision force sensor and contact, the affixed holding plate in upper end of high-precision force sensor, the affixed contact in lower end of high-precision force sensor, stepper motor can be by worm screw and turbine drive rotating screw bolt, and then drive holding plate and high-precision force sensor and contact synchronous vertical to move.
More preferably, described high-precision force sensor connection data capture card, data collecting card connects computing machine via A/D interface, described stepper motor connects Drive and Control Circuit, Drive and Control Circuit connects voltage/frequency frequency converter, and voltage/frequency frequency converter connects computing machine via D/A interface.
More preferably, described contact is the wide contact of measuring for the compression performance of fabric or the narrow contact of measuring for yarn compression performance, and wide contact and narrow contact all adopt rectangular structure, and wide lengths of contacts scope is 1mm-100mm; Described narrow lengths of contacts scope is 1mm-10mm, and the length of narrow contact is greater than the horizontal maximal projection length of yarn.
Preferably, described holder pin is cylinder, and its range of curvature radius is 1mm-100mm.
Preferably, described holder pin is fixed on upper beam.
Preferably, the width of described wide contact or the width of narrow contact are holder pin diameter.
Preferably, the force measurement scope 0～200g of described high-precision force sensor, precision is 0.01%.
Preferably, the displacement range of described power measuring mechanism is 0～80mm, and velocity range is that 1～10mm/min is adjustable.
Preferably, described material is yarn, fabric, film and compound substance thereof.
The present invention also provides the compression performance measuring method of the above-mentioned material with bending curvature, it is characterized in that, adopt the compression performance measurement mechanism of the above-mentioned material with bending curvature, concrete steps comprise:
The first step: fabric or sample of yarn are put on the holder pin with setting radius-of-curvature along its length symmetrically; The initial position of contact is set, by stepper motor, drives contact to initial position, and obtain contact bottom surface apart from the vertical range of holder pin peak, i.e. initial distance;
Second step: stepper motor drives contact vertically to move down compression sample, the force of compression of high-precision force sensor Real-time Obtaining sample, by initial distance and the speed that contact moves down and the thickness that moves down Time Calculation acquisition sample of contact and holder pin, thereby obtain force of compression-thickness characteristics curve, high-precision force sensor sensing is stressed to setting after power value, stop compression, and drive contact to be back to initial position.
Preferably, described second step also comprises, stepper motor drives contact to continue sample to carry out the circulation compression of certain number of times, obtains force of compression-thickness characteristics curve of sample.
Preferably, in the described first step, after fabric or sample of yarn are put in along its length symmetrically have on the holder pin of setting radius-of-curvature, at sample two ends clamping pre-tension folder.
Compression performance measurement of the present invention refers to by the mode compression sample of setting to a certain specific load, obtain load-displacement characteristic curve and load-thickness curve, and extract work done during compression, compression reaction merit, the work done during compression response rate of sample, the linearity of compression curve.
Measuring principle of the present invention is by power measuring mechanism, to construct yarn or the fabric sample of differently curved curvature, by the driving force measuring mechanism compression of displacement drive mechanism, set fabric or the sample of yarn of bending curvature, measure fabric or the compression performance of sample of yarn under flecition.The invention reside in the compressed configuration that solves fabric or the yarn with bending curvature, mechanics reciprocation behavior in distinct and actual woven process between fabric or yarn and cylindrical textile machinery accessories, the apparatus and method that provide the compression performance of the yarn that is applicable to buckle under curvature condition and fabric to measure, and the features simple structure of contrive equipment, measuring accuracy is high and rapid.
Compared with prior art, beneficial effect of the present invention is as follows:
A. first the present invention has proposed to have the compression performance measuring method of fabric or the yarn of bending curvature form, has especially realized the measurement of the fabric of variable bending curvature form or the compression performance of sample of yarn.
B. the present invention realizes real-time induced compression power by high-precision force sensor, realizes the sign of the compression performance under sample dynamic compression condition.
C. simple, the delicate structure, easy and simple to handle of whole Automatic survey, real time implementation and high precision ，Qie instrument mechanism.
D. can be widely used in the compression performance analysis of column (yarn and rope class) and tablet (fabric, film and compound substance thereof).
Accompanying drawing explanation
Fig. 1 has the yarn of bending curvature and the compression performance of fabric is measured contact mechanism front view;
Fig. 2 has the yarn of bending curvature and the compression performance of fabric is measured contact mechanism side view;
Fig. 3 double-clicks contact block compression measurement mechanism schematic diagram;
Fig. 4 has data acquisition and the digital control system process flow diagram of the yarn of bending curvature and the compression performance of fabric measurement contact mechanism;
Fig. 5 has the force of compression-thickness curve of the yarn of bending curvature and the compression performance of fabric measurement contact mechanism.
In figure: 1-upper beam; 2-displacement mechanism assembly, 21-stepper motor, 22-worm screw, 23-worm gear, 24-rotating screw bolt, 25-holding plate, 26-screw; 3-power sensor mechanism, 31-high-precision force sensor, 32-contact, 33-twin-stage contact block support, 34-spring block; 4-holds in the palm pin.
Embodiment
For the present invention is become apparent, hereby with preferred embodiment, be described in detail below.
Embodiment 1
As shown in Figure 1, for thering is the compression performance measurement mechanism front view of the material of bending curvature, the compression performance measurement mechanism of the described material with bending curvature comprises upper beam 1, on described upper beam 1, be fixed with displacement drive mechanism 2, displacement drive mechanism 2 connects power measuring mechanism 3, and power measuring mechanism 3 belows are provided with holder pin 4.
As shown in Figure 2, described displacement drive mechanism comprises stepper motor 21, worm screw 22, worm gear 23, rotating screw bolt 24, holding plate 25 and screw 26, stepper motor 21 and rotating screw bolt 24 are installed on upper beam 1, stepper motor 21 connecting worms 22, turbine 23 couplings are fixed on worm screw 22, turbine 23 connection of rotating screw rods 24, holding plate 25 is socketed on rotating screw bolt 24, described power measuring mechanism 3 comprises high-precision force sensor 31 and contact 32, the upper end of high-precision force sensor 31 is by the affixed holding plate 25 of screw 26, the affixed contact 32 in lower end of high-precision force sensor 31, stepper motor 21 can drive rotating screw bolt 24 by worm screw 23 and turbine 22, and then drive holding plate 25 and high-precision force sensor 31 and contact 32 synchronous verticals to move.Holder pin 4 is cylinder.
As shown in Figure 4, described high-precision force sensor 31 connection data capture cards, data collecting card connects computing machine via A/D interface, described stepper motor 21 connects Drive and Control Circuit, Drive and Control Circuit connects voltage/frequency frequency converter, and voltage/frequency frequency converter connects computing machine via D/A interface.Described holder pin 4 is fixed on upper beam 1.The control of stepper motor consists of computer program; Displacement drive mechanism driving force measuring mechanism has moved to be measured sample compression performance, power value signal is transferred to the collection that data collecting card completes power, data collecting card is used for amplification, the filtering of force sensor signals, and is connected with computing machine, the pre-service of complete paired data and input computing machine.Computing machine carries out signals collecting, pre-service and curve and shows in real time and store accordingly, print.
Embodiment 2 woolen force of compression-thickness characteristics curve and characteristic parameter
Adopt the compression performance measurement mechanism of the material with bending curvature in embodiment 1, contact is wherein the wide contact of measuring for the compression performance of fabric, and wide contact adopts rectangular structure, and length L is 20mm, and the width H of wide contact is the diameter of holder pin.
According to measuring requirement, wool fabric is cut into the sample of the length * wide 15 * 5cm of being, select the holder pin 4 that radius-of-curvature is 10mm, the sample cutting is put on holder pin 4 along its length symmetrically; Selection range is the high-precision force sensor 31 that 200g, precision are 0.01%; The compression termination pressure value of initial position and the contact 32 of contact 32 is set by program software, and the displacement of setting power measuring mechanism 3 is 2mm, precision is 0.01%, and the actuating speed of setting displacement drive mechanism 2 is 2mm/min; Treat parameter after setting completed, drive contact 32 to contact under initial position default conditions to be positioned at initial position and to obtain contact 32 bottom surfaces apart from the distance of holder pin 4 vertical direction peaks, i.e. initial distance; Stepper motor 21 rotates rotating screw bolt 24 by worm screw 22 and worm gear 23, drives holding plate 25 and the high-precision force sensor 31 being connected with holding plate 25 thereof and contact 32 synchronous verticals to move down compression sample; Contact 32 compression samples, 31 inductions of high-precision force sensor are stressed, and by data collecting card and A/D interface input computing machine, the force of compression of Real-time Obtaining sample; By initial distance and the speed that contact moves down and the thickness that moves down Time Calculation acquisition sample of contact 32 and holder pin 4, thereby obtain force of compression-thickness characteristics curve; Characteristic curve based on obtained extracts the characteristic parameters such as the linearity of corresponding compression performance characteristic parameter work done during compression, compression reaction merit, work done during compression response rate, compression curve; 31 inductions of high-precision force sensor are stressed to software set power value, stop compression, and drive contact 32 to be back to initial position.
By measuring a woolen sample, it is long * wide is 15 * 5cm.Typical force of compression-thickness characteristics curve of gained is shown in shown in accompanying drawing 5, and corresponding compression performance characteristic parameter the results are shown in following table 1.
Table 1 fabric compression performance characteristic parameter measurements
Embodiment 3 bafta force of compression-thickness characteristics curves and characteristic parameter obtain.
Adopt the compression performance measurement mechanism of the material with bending curvature in embodiment 1, contact is wherein the wide contact of measuring for the compression performance of fabric, and wide contact adopts rectangular structure, and length L is 10mm, and the width H of wide contact is the diameter of holder pin.
According to measuring requirement, bafta is cut into the sample of the length * wide 15 * 2cm of being, select the holder pin 4 that radius-of-curvature is 50mm, the sample cutting is put on holder pin 4 along its length symmetrically; Selection range is the high-precision force sensor 31 that 100g, precision are 0.01%; The compression termination pressure value of initial position and the contact 32 of contact 32 is set by program software, and the displacement of setting power measuring mechanism 3 is 2mm, precision is 0.01%, and the actuating speed of setting displacement drive mechanism 2 is 6mm/min; Treat parameter after setting completed, drive contact 32 to contact under initial position default conditions to be positioned at initial position and to obtain contact 32 bottom surfaces apart from the distance of holder pin 4 vertical direction peaks, i.e. initial distance; Stepper motor 21 rotates rotating screw bolt 24 by worm screw 22 and worm gear 23, drives holding plate 25 and the high-precision force sensor 31 being connected with holding plate 25 thereof and contact 32 synchronous verticals to move down compression sample; Contact 32 compression samples, 31 inductions of high-precision force sensor are stressed, and by data collecting card and A/D interface input computing machine, the force of compression of Real-time Obtaining sample; By initial distance and the speed that contact moves down and the thickness that moves down Time Calculation acquisition sample of contact 32 and holder pin 4, thereby obtain force of compression-thickness characteristics curve; Characteristic curve based on obtained extracts the characteristic parameters such as the linearity of corresponding compression performance characteristic parameter work done during compression, compression reaction merit, work done during compression response rate, compression curve; 31 inductions of high-precision force sensor are stressed to software set power value, stop compression, and drive contact 32 to be back to initial position.Corresponding compression performance characteristic parameter the results are shown in Table 1.
Embodiment 4 silk fabrics force of compression-thickness characteristics curve and characteristic parameters
Adopt the compression performance measurement mechanism of the material with bending curvature in embodiment 1, contact is wherein the wide contact of measuring for the compression performance of fabric, and wide contact adopts rectangular structure, and length L is 20mm, and the width H of wide contact is the diameter of holder pin.
According to measuring requirement, silk fabrics is cut into the sample of the length * wide 20 * 5cm of being, select the holder pin 4 that radius-of-curvature is 8mm, the sample cutting is put on holder pin 4 along its length symmetrically; Selection range is the high-precision force sensor 31 that 100g, precision are 0.01%; By program software, the initial position of contact 32 is set and is touched 32 compression termination pressure values, and the displacement of setting power measuring mechanism 3 is 1.5mm, precision is 0.01%, and the actuating speed of setting displacement drive mechanism 2 is 6mm/min; Treat parameter after setting completed, drive contact 32 to contact under initial position default conditions to be positioned at initial position and to obtain contact 32 bottom surfaces apart from the distance of holder pin 4 vertical direction peaks, i.e. initial distance; Stepper motor 21 rotates rotating screw bolt 24 by worm screw 22 and worm gear 23, drives holding plate 25 and the high-precision force sensor 31 being connected with holding plate 25 thereof and contact 32 synchronous verticals to move down compression sample; Contact 32 compression samples, 31 inductions of high-precision force sensor are stressed, and by data collecting card and A/D interface input computing machine, the force of compression of Real-time Obtaining sample; By initial distance and the speed that contact moves down and the thickness that moves down Time Calculation acquisition sample of contact 32 and holder pin 4, thereby obtain force of compression-thickness characteristics curve; Characteristic curve based on obtained extracts the characteristic parameters such as the linearity of corresponding compression performance characteristic parameter work done during compression, compression reaction merit, work done during compression response rate, compression curve; 31 inductions of high-precision force sensor are stressed to software set power value, stop compression, and drive contact 32 to be back to initial position, and corresponding compression performance characteristic parameter the results are shown in Table 1.
Embodiment 5 terylene chemical & blended fabric force of compression-thickness characteristics curve and characteristic parameters.
Adopt the compression performance measurement mechanism of the material with bending curvature in embodiment 1, contact is wherein the wide contact of measuring for the compression performance of fabric, and wide contact adopts rectangular structure, and length L is 40mm, and the width H of wide contact is the diameter of holder pin.
According to measuring requirement, terylene chemical & blended fabric is cut into the sample of the length * wide 15 * 5cm of being, select the holder pin 4 that radius-of-curvature is 50mm, the sample cutting is put on holder pin 4 along its length symmetrically; Selection range is the high-precision force sensor 31 that 200g, precision are 0.01%; By program software, the initial position of contact 32 and contact 32 compression termination pressure values are set, and the displacement of setting power measuring mechanism 3 is 5mm, precision is 0.01%, and the actuating speed of setting displacement drive mechanism 2 is 10mm/min; Treat parameter after setting completed, drive contact 32 to contact under initial position default conditions to be positioned at initial position and to obtain contact 32 bottom surfaces apart from the distance of holder pin 4 vertical direction peaks, i.e. initial distance; Stepper motor 21 rotates rotating screw bolt 24 by worm screw 22 and worm gear 23, drives holding plate 25 and the high-precision force sensor 31 being connected with holding plate 25 thereof and contact 32 synchronous verticals to move down compression sample; Contact 32 compression samples, 31 inductions of high-precision force sensor are stressed, and by data collecting card and A/D interface input computing machine, the force of compression of Real-time Obtaining sample; By initial distance and the speed that contact moves down and the thickness that moves down Time Calculation acquisition sample of contact 32 and holder pin 4, thereby obtain force of compression-thickness characteristics curve; Characteristic curve based on obtained extracts the characteristic parameters such as the linearity of corresponding compression performance characteristic parameter work done during compression, compression reaction merit, work done during compression response rate, compression curve; 31 inductions of high-precision force sensor are stressed to software set power value, stop compression, and drive contact 32 to be back to initial position.
Embodiment 6 cotton yarn force of compression-thickness characteristics curve and characteristic parameters.
Adopt the compression performance measurement mechanism of the material with bending curvature in embodiment 1, contact is wherein the narrow contact of measuring for yarn compression performance, narrow contact adopts rectangular structure, length L is 5mm, the length of narrow contact is greater than the horizontal maximal projection length of yarn, and the width H of narrow contact is the diameter of holder pin.
According to measuring requirement, by cotton yarn intercepting length, be the sample of 15cm, select the holder pin 4 that radius-of-curvature is 14mm, the sample cutting is put on holder pin 4 along its length symmetrically; Selection range is the high-precision force sensor 31 that 50g, precision are 0.01%; By program software, the initial position of contact 32 and contact 32 compression termination pressure values are set, and the displacement of setting power measuring mechanism 3 is 4mm, precision is 0.01%, and the actuating speed of setting displacement drive mechanism 2 is 3mm/min; Treat parameter after setting completed, drive contact 32 to contact under initial position default conditions to be positioned at initial position and to obtain contact 32 bottom surfaces apart from the distance of holder pin 4 vertical direction peaks, i.e. initial distance; Stepper motor 21 rotates rotating screw bolt 24 by worm screw 22 and worm gear 23, drives holding plate 25 and the high-precision force sensor 31 being connected with holding plate 25 thereof and contact 32 synchronous verticals to move down compression sample; Contact 32 compression samples, 31 inductions of high-precision force sensor are stressed, and by data collecting card and A/D interface input computing machine, the force of compression of Real-time Obtaining sample; By initial distance and the speed that contact moves down and the thickness that moves down Time Calculation acquisition sample of contact 32 and holder pin 4, thereby obtain force of compression-thickness characteristics curve; Characteristic curve based on obtained extracts corresponding compression performance characteristic parameter (characteristic parameters such as the linearity of work done during compression, compression reaction merit, work done during compression response rate, compression curve); 31 inductions of high-precision force sensor are stressed to software set power value, stop compression, and drive contact 32 to be back to initial position.
Embodiment 7 wool yarn force of compression-thickness characteristics curves and characteristic parameter obtain.
Adopt the compression performance measurement mechanism of the material with bending curvature in embodiment 1, contact is wherein the narrow contact of measuring for yarn compression performance, narrow contact adopts rectangular structure, length L is 10mm, the length of narrow contact is greater than the horizontal maximal projection length of yarn, and the width H of narrow contact is the diameter of holder pin.
According to measuring requirement, by wool yarn intercepting length, be the sample of 15cm, select the holder pin 4 that radius-of-curvature is 20mm, the sample cutting is put on holder pin 4 along its length symmetrically; Selection range is the high-precision force sensor 31 that 50g, precision are 0.01%; By program software, the initial position of contact 32 and contact 32 compression termination pressure values are set, and the displacement of setting power measuring mechanism 3 is 10mm, precision is 0.01%, and the actuating speed of setting displacement drive mechanism 2 is 6mm/min; Treat parameter after setting completed, drive contact 32 to contact under initial position default conditions to be positioned at initial position and to obtain contact 32 bottom surfaces apart from the distance of holder pin 4 vertical direction peaks, i.e. initial distance; Stepper motor 21 rotates rotating screw bolt 24 by worm screw 22 and worm gear 23, drives holding plate 25 and the high-precision force sensor 31 being connected with holding plate 25 thereof and contact 32 synchronous verticals to move down compression sample; Contact 32 compression samples, 31 inductions of high-precision force sensor are stressed, and by data collecting card and A/D interface input computing machine, the force of compression of Real-time Obtaining sample; By initial distance and the speed that contact moves down and the thickness that moves down Time Calculation acquisition sample of contact 32 and holder pin 4, thereby obtain force of compression-thickness characteristics curve; Characteristic curve based on obtained extracts corresponding compression performance characteristic parameter (characteristic parameters such as the linearity of work done during compression, compression reaction merit, work done during compression response rate, compression curve); 31 inductions of high-precision force sensor are stressed to software set power value, stop compression, and drive contact 32 to be back to initial position.
Claims (10)
1. a compression performance measurement mechanism with the material of bending curvature, comprise upper beam (1), it is characterized in that, on described upper beam (1), be fixed with displacement drive mechanism (2), displacement drive mechanism (2) connects power measuring mechanism (3), and power measuring mechanism (3) below is provided with holder pin (4).
2. the compression performance measurement mechanism with the material of bending curvature as claimed in claim 1, it is characterized in that, described displacement drive mechanism comprises stepper motor (21), worm screw (22), worm gear (23), rotating screw bolt (24) and holding plate (25), stepper motor (21) and rotating screw bolt (24) are installed on upper beam (1), stepper motor (21) connecting worm (22), turbine (23) coupling is fixed on worm screw (22), turbine (23) connection of rotating screw rod (24), holding plate (25) is socketed on rotating screw bolt (24), described power measuring mechanism (3) comprises high-precision force sensor (31) and contact (32), the affixed holding plate in upper end (25) of high-precision force sensor (31), the affixed contact in lower end (32) of high-precision force sensor (31), stepper motor (21) can pass through worm screw (23) and turbine (22) drives rotating screw bolt (24), and then drive holding plate (25) and high-precision force sensor (31) and contact (32) synchronous vertical to move.
3. the compression performance measurement mechanism with the material of bending curvature as claimed in claim 2, it is characterized in that, described high-precision force sensor (31) connection data capture card, data collecting card connects computing machine via A/D interface, described stepper motor (21) connects Drive and Control Circuit, Drive and Control Circuit connects voltage/frequency frequency converter, and voltage/frequency frequency converter connects computing machine via D/A interface.
4. the compression performance measurement mechanism with the material of bending curvature as claimed in claim 2, it is characterized in that, described contact is the wide contact of measuring for the compression performance of fabric or the narrow contact of measuring for yarn compression performance, wide contact and narrow contact all adopt rectangular structure, and wide lengths of contacts scope is 1mm-100mm; Described narrow lengths of contacts scope is 1mm-10mm, and the length of narrow contact is greater than the horizontal maximal projection length of yarn.
5. the compression performance measurement mechanism with the material of bending curvature as claimed in claim 1, is characterized in that, described holder pin (4) is cylinder, and its range of curvature radius is 1mm-100mm.
6. the compression performance measurement mechanism with the material of bending curvature as claimed in claim 1, is characterized in that, described holder pin (4) is fixed on upper beam (1).
7. the compression performance measurement mechanism with the material of bending curvature as claimed in claim 1, is characterized in that, the force measurement scope 0～200g of described high-precision force sensor (31), and precision is 0.01%.
8. the compression performance measurement mechanism with the material of bending curvature as claimed in claim 1, is characterized in that, the displacement range of described power measuring mechanism (3) is 0～80mm, and velocity range is that 1～10mm/min is adjustable.
9. the compression performance measuring method with the material of bending curvature claimed in claim 1, is characterized in that, adopts the compression performance measurement mechanism of the material with bending curvature described in claim 1-8 any one, and concrete steps comprise:
The first step: fabric or sample of yarn are put on the holder pin (4) with setting radius-of-curvature along its length symmetrically; The initial position of contact (32) is set, by stepper motor (21), drives contact (32) to initial position, and obtain contact (32) bottom surface apart from the vertical range of holder pin (4) peak, i.e. initial distance;
Second step: stepper motor (21) drives contact (32) vertically to move down compression sample, the force of compression of high-precision force sensor (31) Real-time Obtaining sample, by initial distance and the speed that contact moves down and the thickness that moves down Time Calculation acquisition sample of contact (32) and holder pin (4), thereby obtain force of compression-thickness characteristics curve, high-precision force sensor (31) is responded to stressed to setting after power value, stop compression, and drive contact (32) to be back to initial position.
10. the compression performance measuring method with the material of bending curvature as claimed in claim 9, it is characterized in that, described second step also comprises, stepper motor (21) drives contact (32) continuation sample to be carried out to the circulation compression of certain number of times, obtains force of compression-thickness characteristics curve of sample.
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| CN104374657A (en) * | 2014-11-18 | 2015-02-25 | 苏州赛腾精密电子有限公司 | Swing bending testing mechanism |
| CN105572327A (en) * | 2016-01-07 | 2016-05-11 | 东华大学 | Textile material hand feeling style measuring apparatus, applications and application method thereof |
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