CN103306023B - Sectional warp tension and elongation relationship measuring method and device - Google Patents
Sectional warp tension and elongation relationship measuring method and device Download PDFInfo
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- CN103306023B CN103306023B CN201310285735.9A CN201310285735A CN103306023B CN 103306023 B CN103306023 B CN 103306023B CN 201310285735 A CN201310285735 A CN 201310285735A CN 103306023 B CN103306023 B CN 103306023B
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Abstract
The invention discloses a sectional warp tension and elongation relationship measuring method and device. The method includes the following steps: 1) a warp route is divided into five measuring sections; 2) a tension sensor is arranged on the five measuring sections respectively; 3) the warp tension at each measuring section is measured by the corresponding tension sensor, and tension signals are transmitted to a tension signal processing arithmetic unit; 4) the tension signal processing arithmetic unit enables data to be input in a computer after tension operation; 5) three marks are marked on surface-layer warp still winding on a weaving beam; 6) when the marks enter the five measuring sections, and length between the marks are measured respectively; 7) warp elongation is calculated. By means of the sectional warp tension and elongation relationship measuring method and device, two important parameters including the warp tension and the warp elongation can be measured accurately in the warp movement process, an instantaneous state and acting force on yarn are caught accurately, and warp tension states can be regulated under the condition that a weaving machine is at high speed and high efficiency.
Description
Technical field
The invention belongs to loom field, be specifically related to measuring method and the device thereof of a kind of segmentation warp tension and the relation of elongation.
Background technology
Warp thread is unwinding from beam of a loom, by way of a series of guide axle and the another part of guide, enters fell.Warp thread, in motion process, has two important parameters: warp tension and warp thread extend.Loom, the in the situation that of high speed, high efficiency, is adjusted warp tension state and is more seemed important.In order accurately to capture instantaneous state and the active force on yarn, test macro must meet certain frequency requirement, catches warp tension in the peak region of ad-hoc location, as upper strata Warp opening beats up, lower layer warp yarns opening beats up.Tension data is change curve in screen display, and the performance data of warp tension is rendered as peak value, mean value etc.
In loom warp tension measuring system, movable back beam is bearing all total tension force of warp thread, all warp thread are all walked around from back rest surface, existing control technology, the most critical pieces of the back rest as tension signal feedback that adopt, be S type bending-type power sensor as the power sensor that gathers warp tension signal, range is 500Kg, and the masterpiece that the collection back rest bears is warp dynamic tension.The diameter of warp thread is very thin, and quality is again little, and improper with the back rest reflection warp tension of tens kilograms, what the back rest embodied is dynamic tension on warp, the mean value of all warp tensions in designated period.Warp thread is divided into top line and lower layer warp yarns, the state of top line tension force and lower layer warp yarns tension force is very different, back rest reflection warp thread Dynamic Signal is insensitive, the back rest can not reflect the different characteristics that is in top shed or lower shed warp tension, the back rest does not reflect the tension state of every page of heald frame, only shows the mean value of all several thousand warp thread.
On loom, movement of the warp is divided into three types, simple the most a kind of is that warp thread is walked around from fixing guide axle, a kind of is that warp thread is walked around from movable guide axle, the most complicated one is as significantly upper and lower with warp thread in heald, now warp thread not only moves up and down, and before and after in harness eye, heavy curtain is moving.Heald frame on loom carries warp thread through heald and forms shed open, and heald frame is not that single page uses, the minimum 4-6 page of a loom heald frame, and this movement of the warp changes free warp thread generation geometry, affects warp tension.Measurement must present this tension variation.
Warp thread moves along guide axle, menopause tablet eye, heddle eyelet, and warp tension is increasing progressively, and warp length is being extended, and enter guide axle and changing through yarn count during from the unwinding of guide axle, the state variable of research warp thread, the elongation of measuring warp thread is the simplest.The variation of warp thread due to the viscosity property of yarn itself, is the real reaction of the quick dynamic change of warp tension on the one hand on the one hand, and therefore, the relation of measuring warp tension and elongation is particularly important.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides measuring method and the device thereof of a kind of segmentation warp tension and the relation of elongation, accurately capture instantaneous state and active force on yarn, make loom in the situation that of high speed, high efficiency, can adjust warp tension state.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A measuring method for segmentation warp tension and the relation of elongation, comprises the following steps:
Step 1), in warp thread course, is divided into five sections of measuring sections by warp thread warp thread course, is respectively:
At beam of a loom unwinding point and fix first measuring section of the back rest between batching a little; The second measuring section between fixing back rest unwinding point and movable back beam batch a little; The 3rd measuring section between movable back beam unwinding point and menopause tablet; The 4th measuring section between described menopause tablet and the heald of last page heald frame; The 5th measuring section between heald and the fell of prevpage heald frame;
Step 2) on five above-mentioned measuring sections, a tension pick-up is set respectively;
Described in step 3), tension pick-up is measured respectively the tension force of above-mentioned each measuring section warp thread, and tension signal is delivered to tension signal processing arithmetic unit;
Described in step 4), tension signal processing arithmetic unit enters data in computer after tension force computing;
Step 5) does not still have at described beam of a loom to identify three marks on the top layer warp thread of unwinding, described mark 20 millimeters, interval between two;
Step 6), in the time that described mark enters five described measuring sections, is measured the length between mark with ruler respectively;
Step 7) is calculated the percentage elongation of warp thread, percentage elongation=measurement length/20 millimeter.
Further, described tension pick-up is measured the tension force with 1-2 root warp thread on one page heald frame.
A measurement mechanism for segmentation warp tension and the relation of elongation, comprises that the control panel and of described tension pick-up, described tension signal processing arithmetic unit, described computer, an initialize data is arranged on the encoder on loom main shaft; Described tension signal is processed arithmetic unit and is connected with described tension pick-up, described computer and described control panel respectively, and described control panel is connected with described encoder.
Further, described tension signal is processed in arithmetic unit and is comprised a bridge power supply and transmitter, and described transmitter connects a signal recognition module and tension force computing module successively;
Described bridge power supply is described tension pick-up power supply, and described transmitter connects the signal output part of described tension pick-up, and described signal recognition module connects described control panel, and described transmitter is all connected with described computer with described tension force computing module.
Further, described tension pick-up comprises tension pick-up with three steamboats and the tension pick-up with three bearing pins, the described tension pick-up with three steamboats is arranged on the second measuring section and the 5th measuring section, and the described tension pick-up with three bearing pins is arranged on the first measuring section, the 3rd measuring section and the 4th measuring section.
Further, the described tension pick-up with three steamboats comprises a first sensor body, in described first sensor body case, be fixed with respectively first, second, set square, between described the first gusset and described set square, be also provided with a plate, in described first sensor body, be provided with the first foil gauge group, described the first foil gauge group is provided with the lead-out wire of processing arithmetic unit for connecting described tension signal, described first, second, set square top is fixed with respectively first, second, the 3rd steamboat, described first, second, between set square and described first sensor body, be equipped with dottle pin.
Further, the described tension pick-up with three bearing pins comprises one second sensor body, described the second sensor body inside is provided with the second foil gauge group, described the second foil gauge group is provided with the lead-out wire of processing arithmetic unit for connecting described tension signal, and described sensor body front end is provided with first, second, third bearing pin.
Compared with prior art, the present invention has following beneficial effect:
The route that the present invention is unwound to fell by warp thread from beam of a loom is divided into five sections, measures respectively every section of warp tension and percentage elongation, measuring point difference, the tension pick-up of employing different structure.Measure respectively top line and warp tension and the percentage elongation of two time periods of lower layer warp yarns between first page heald frame heald and fell and between last page heald frame heald and menopause tablet.
The present invention can accurately measure warp thread these two important parameters in motion process: warp tension and warp thread extend, and accurately capture instantaneous state and active force on yarn, make loom in the situation that of high speed, high efficiency, can adjust warp tension state.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of description, below with preferred embodiment of the present invention and coordinate accompanying drawing describe in detail.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is warp on loom course segmentation schematic diagram;
Fig. 2 is the structured flowchart of segmentation warp tension measurement mechanism of the present invention;
Fig. 3 is the front view of the tension pick-up of three steamboats of band of the present invention;
Fig. 4 is the top view of the tension pick-up of three steamboats of band of the present invention;
Fig. 5 is the top view of the tension pick-up of three bearing pins of band of the present invention;
Fig. 6 is the front view of the tension pick-up of three bearing pins of band of the present invention.
The specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
A measuring method for segmentation warp tension and the relation of elongation, comprises the following steps:
Step 1), in warp thread course, is divided into five sections of measuring sections by warp thread warp thread course, is respectively:
At beam of a loom unwinding point and fix the first measuring section AB of the back rest between batching a little; The second measuring section BC between fixing back rest unwinding point and movable back beam batch a little; The 3rd measuring section CD between movable back beam unwinding point and menopause tablet; The 4th measuring section DE between described menopause tablet and the heald of last page heald frame; The 5th measuring section FG between heald and the fell of prevpage heald frame;
Step 2) on described the second measuring section BC and described the 5th measuring section FG, the tension pick-up 101 with three steamboats is set; On described the first measuring section AB, described the 3rd measuring section CD and described the 4th measuring section DE, the tension pick-up 102 with three bearing pins is set.
Tension pick-up 101 with three steamboats described in step 3) and described tension pick-up 102 with three bearing pins are measured respectively the tension force of above-mentioned each corresponding measuring section 1-2 root warp thread, and tension signal is delivered to tension signal processes arithmetic unit 2;
Sampling for the warp tension of the 5th measuring section FG is divided into two time periods, and top line and lower layer warp yarns, carry out respectively data sampling;
Described in step 4), tension signal processing arithmetic unit 2 enters data in computer 3 after tension force computing;
Step 5) does not still have at described beam of a loom to identify three marks on the top layer warp thread of unwinding, described mark 20 millimeters, interval between two;
Step 6), in the time that described mark enters five described measuring sections, is measured the length between mark with ruler respectively;
For the measurement of the percentage elongation of the 5th measuring section FG, be divided into equally two time periods, top line and lower layer warp yarns, calculate respectively percentage elongation;
Step 7) is calculated the percentage elongation of warp thread, percentage elongation=measurement length/20 millimeter.
Warp thread course is divided into five sections, and every section of warp thread is surveyed respectively warp tension.Minimum on warp tension numerical value after beam of a loom unwinding, along with advancing of warp thread, warp thread is through guide axle or guide fulcrum, and warp tension just increases, and warp tension numerically increases progressively piecemeal, warp tension maximum before fell.
Warp tension is measured the warp tension of pressing on single thread or 2 yarns, and tension pick-up is measured the tension force with 1-2 root warp thread on one page heald frame.Single thread reaction is more responsive, measures that curve is sensitive reflects the impact of the various motions of loom on warp tension, and the warp tension reaction of contiguous heald frame section is the most responsive, and before the back rest, warp tension changes and has been passivated.Due to the friction between deflection and warp thread and the cord roller of warp thread, be all different at the warp tension numerical value through each position of the position line and situation of change, have very large difference at three curves that obtain between beam of a loom and the back rest, between the back rest and menopause tablet, at three measuring points of fell.
A measurement mechanism for segmentation warp tension and the relation of elongation, comprises that the control panel 4 and of described tension pick-up 1, described tension signal processing arithmetic unit 2, described computer 3, an initialize data is arranged on the encoder 5 on loom main shaft 6; Described tension signal is processed arithmetic unit 2 and is connected with described tension pick-up 1, described computer 3 and described control panel 4 respectively, and described control panel 4 is connected with described encoder 5.
Further, described tension signal is processed in arithmetic unit 2 and is comprised a bridge power supply 201 and transmitter 202, and described transmitter 202 connects a signal recognition module 203 and tension force computing module 204 successively; Described bridge power supply 201 is powered for described tension pick-up 1, described transmitter 202 connects the signal output part of described tension pick-up 1, described signal recognition module 203 connects described control panel 4, and described transmitter 202 is all connected with described computer 3 with described tension force computing module 204.
The time of described segmentation warp tension measurement mechanism produces sequential by described encoder 5, loom main shaft revolution, drive described encoder 5 to turn round by gear pair, angle of revolution converts angle to through described encoder 5, coding angle enters described control panel 4 and converts data signal to, and described control panel 4 sends instruction by angle, the record of instruction control tension signal, coding angle signal enters described tension signal and processes arithmetic unit 2, and measurement sequential is provided.
What described encoder 5 adopted is the encoder of resolution ratio 1o, according to fabric tissue, and as plain cloth, must 720 data of record.For data, must identify, remove the too large data of BIAS, then calculate corresponding data by insertion, substitute the data of removing, finally by 720 data, calculate mean tension.
Sampling for the warp tension of the 5th measuring section FG is divided into two time periods, and top line and lower layer warp yarns, carry out respectively data sampling.
Still there is no to identify three marks on the top layer warp thread of unwinding 20 millimeters, two mark intervals at beam of a loom.Sign is to identify on yarn with coloured pencil.In the time that mark enters five sections, measure the length between mark with ruler, measure length/20 millimeter=percentage elongation.
For the percentage elongation of the 5th measuring section FG, be divided into equally two time periods, top line and lower layer warp yarns, calculate respectively percentage elongation.
The mean tension of every section of warp thread is corresponding with the percentage elongation of every section, obtains warp tension and percentage elongation relation.When warp thread kind difference, through yarn count difference, measurement can record different warp tensions and percentage elongation relation.
Further, described tension pick-up 1 comprises tension pick-up with three steamboats 101 and the tension pick-up 102 with three bearing pins, the described tension pick-up 101 with three steamboats is arranged on the second measuring section BC and the 5th measuring section FG is upper, and the described tension pick-up 102 with three bearing pins is arranged on the first measuring section AB, the 3rd measuring section CD and the 4th measuring section DE.
Further, the described tension pick-up 101 with three steamboats comprises a first sensor body 1019, on described first sensor body 1019 shells, be fixed with respectively first, second, set square 1012, 1013, 1014, between described the first gusset 1012 and described set square 1014, be also provided with a plate 1015, in described first sensor body, be provided with the first foil gauge group 1011, described the first foil gauge group 1011 is provided with the lead-out wire of processing arithmetic unit 2 for connecting described tension signal, described first, second, set square 1012, 1013, 1014 tops are fixed with respectively first, second, the 3rd steamboat 1015, 1016, 1017, described first, second, set square 1012, 1013, 1014 and described first sensor body 1019 between be equipped with dottle pin 1018.
Further, the described tension pick-up 102 with three bearing pins comprises one second sensor body 1021, described the second sensor body 1021 inside are provided with the second foil gauge group 1022, described the second foil gauge group 1022 is provided with the lead-out wire of processing arithmetic unit 2 for connecting described tension signal, described sensor body 1021 front ends are provided with first, second, third bearing pin 1023,1024,1025.
The stressed main body of tension pick-up adopts elastomeric material, and the quality of tension pick-up is as much as possible little, aluminium or titanium alloy material for tension pick-up body.Foil gauge group is made up of four foil gauges, strain gauge adhesion is at the thin-walled place of sensor body, and the distortion of sensor body has caused elongating or shortening of foil gauge, and the distance between steamboat or bearing pin and foil gauge group location for paste is longer, under same tension force effect, the strain of sensor body is larger.The intrinsic frequency of tension pick-up should be greater than 300Hz, and the range of tension pick-up is 60-80CN.
On the described tension pick-up 101 with three steamboats, warp thread moves towards perpendicular to warp thread direct of travel, warp thread enters three-wheel measurement zone from end, warp thread passes through from top, the bottom of the second steamboat 1016 and the top of the 3rd steamboat 1017 of the first steamboat 1015, warp tension acts on steamboat, cause steamboat distortion, distortion passes to sensor body through steamboat and connecting plate.
The described tension pick-up 102 with three bearing pins is by the tension pick-up of 3 deflection principle designs, the square that the cross section of the sensor body 1021 of the described tension pick-up 102 with three bearing pins is hollow, and sectional dimension is 8 × 8mm, length is 80 mm.Bearing pin titanium alloy material, pin diameter φ 3mm.
The foregoing is only preferred case study on implementation of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a measuring method for segmentation warp tension and the relation of elongation, is characterized in that, comprises the following steps:
Step 1), in warp thread course, is divided into five sections of measuring sections by warp thread warp thread course, is respectively:
At beam of a loom unwinding point and fix first measuring section (AB) of the back rest between batching a little; The second measuring section (BC) between fixing back rest unwinding point and movable back beam batch a little; The 3rd measuring section (CD) between movable back beam unwinding point and menopause tablet; The 4th measuring section (DE) between described menopause tablet and the heald of last page heald frame; The 5th measuring section (FG) between heald and the fell of prevpage heald frame;
Step 2) on five above-mentioned measuring sections, a tension pick-up (1) is set respectively;
Tension pick-up described in step 3) (1) is measured respectively the tension force of above-mentioned each measuring section warp thread, and tension signal is delivered to tension signal processing arithmetic unit (2);
Described in step 4), tension signal processing arithmetic unit (2) enters data in computer (3) after tension force computing;
Step 5) does not still have at described beam of a loom to identify three marks on the top layer warp thread of unwinding, described mark 20 millimeters, interval between two;
Step 6), in the time that described mark enters five described measuring sections, is measured the length between mark with ruler respectively;
Step 7) is calculated the percentage elongation of warp thread, percentage elongation=measurement length/20 millimeter.
2. the measuring method of segmentation warp tension according to claim 1 and the relation of elongation, is characterized in that: described tension pick-up (1) is measured the tension force with 1-2 root warp thread on one page heald frame.
3. one kind adopts the segmentation warp tension of method described in claim 1 and the measurement mechanism of the relation of elongation, it is characterized in that: comprise that five are arranged on the described tension pick-up (1) on five sections of described measuring sections, described tension signal and process the control panel (4), of arithmetic unit (2), described computer (3), an initialize data and be arranged on encoder (5) on loom main shaft (6), be identified at described beam of a loom and still do not have three marks and on the top layer warp thread of unwinding for measuring the ruler of length between described mark, described mark 20 millimeters, interval between two; Described tension signal is processed arithmetic unit (2) and is connected with described tension pick-up (1), described computer (3) and described control panel (4) respectively, and described control panel (4) is connected with described encoder (5).
4. the measurement mechanism of segmentation warp tension according to claim 3 and the relation of elongation, it is characterized in that: described tension signal is processed in arithmetic unit (2) and comprised a bridge power supply (201) and transmitter (202), and described transmitter (202) connects a signal recognition module (203) and tension force computing module (204) successively;
Described bridge power supply (201) is described tension pick-up (1) power supply, described transmitter (202) connects the signal output part of described tension pick-up (1), described signal recognition module (203) connects described control panel (4), and described transmitter (202) is all connected with described computer (3) with described tension force computing module (204).
5. the measurement mechanism of segmentation warp tension according to claim 3 and the relation of elongation, it is characterized in that: described tension pick-up (1) comprises tension pick-up (101) and the tension pick-up with three bearing pins (102) with three steamboats, the described tension pick-up (101) with three steamboats is arranged on the second measuring section (BC) and the 5th measuring section (FG) is upper, and the described tension pick-up (102) with three bearing pins is arranged on the first measuring section (AB), the 3rd measuring section (CD) and the 4th measuring section (DE).
6. the measurement mechanism of segmentation warp tension according to claim 5 and the relation of elongation, it is characterized in that: the described tension pick-up (101) with three steamboats comprises a first sensor body (1019), on described first sensor body (1019) shell, be fixed with respectively first, second, set square (1012, 1013, 1014), between described the first gusset (1012) and described set square (1014), be also provided with a plate (1015), in described first sensor body, be provided with the first foil gauge group (1011), described the first foil gauge group (1011) is provided with the lead-out wire of processing arithmetic unit (2) for connecting described tension signal, described first, second, set square (1012, 1013, 1014) top is fixed with respectively first, second, the 3rd steamboat (1015, 1016, 1017), described first, second, set square (1012, 1013, 1014) and between described first sensor body (1019), be equipped with dottle pin (1018).
7. the measurement mechanism of segmentation warp tension according to claim 5 and the relation of elongation, it is characterized in that: the described tension pick-up (102) with three bearing pins comprises one second sensor body (1021), described the second sensor body (1021) inside is provided with the second foil gauge group (1022), described the second foil gauge group (1022) is provided with the lead-out wire of processing arithmetic unit (2) for connecting described tension signal, described sensor body (1021) front end is provided with first, second, third bearing pin (1023,1024,1025).
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| CN109764996B (en) * | 2018-12-26 | 2019-12-06 | 江南大学 | Method for detecting sizing enhancement rate and elongation reducing rate |
| CN113155342B (en) * | 2021-04-29 | 2022-07-29 | 中汽研汽车检验中心（天津）有限公司 | Device and method for measuring pulling-out and winding-up forces of webbing of safety belt |
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| JPH06117948A (en) * | 1992-10-02 | 1994-04-28 | Toray Ind Inc | Method and equipment for measuring tension |
| DE59605592D1 (en) * | 1996-02-05 | 2000-08-17 | Sulzer Textil Ag Rueti | Method and device for measuring the tension of the warp in a weaving machine |
| CN101235572A (en) * | 2008-03-04 | 2008-08-06 | 江苏万工科技集团有限公司 | Weft yarn flight stretching force display device |
| CN102146607A (en) * | 2010-11-17 | 2011-08-10 | 江苏万工科技集团有限公司 | Automatic adjusting device and adjusting method for sampling period of warp delivery mechanism of weaving machine |
| CN102080298A (en) * | 2010-11-23 | 2011-06-01 | 东华大学 | Segment-based method for detecting and controlling yarn tension of weaving machine on line |
| CN102359840B (en) * | 2011-06-24 | 2013-02-13 | 浙江理工大学 | Method for measuring weft tension in shed |
| CN102878929A (en) * | 2012-10-11 | 2013-01-16 | 江苏万工科技集团有限公司 | System for measuring starting characteristic of weaving machine |
| CN102914400B (en) * | 2012-10-22 | 2015-02-25 | 江苏万工科技集团有限公司 | Measuring device for fabric tensile force close to cloth fell |
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