CN109655000B - Cotton fiber length measurement system and method - Google Patents
Cotton fiber length measurement system and method Download PDFInfo
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- CN109655000B CN109655000B CN201910069984.1A CN201910069984A CN109655000B CN 109655000 B CN109655000 B CN 109655000B CN 201910069984 A CN201910069984 A CN 201910069984A CN 109655000 B CN109655000 B CN 109655000B
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 130
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005259 measurement Methods 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 52
- 238000012360 testing method Methods 0.000 claims description 43
- 238000005070 sampling Methods 0.000 claims description 42
- 230000007246 mechanism Effects 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 29
- 238000009960 carding Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 9
- 238000012790 confirmation Methods 0.000 claims description 6
- 238000007639 printing Methods 0.000 claims description 4
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- 238000004891 communication Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
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- 238000003825 pressing Methods 0.000 description 5
- 244000144992 flock Species 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
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- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a cotton fiber length measuring system and a method, wherein the cotton fiber length measuring system comprises the following components: a sampler, a host and an analyzer, the method comprising the steps of: 1) Acquiring cotton fibers by using a sampler; 2) Placing cotton fibers in a host machine, and measuring data of fiber positions and light intensity transmitted through the fibers; 3) The host computer transmits the data of the fiber position and the light intensity transmitted through the fiber to the analyzer, and the analyzer generates a correlation curve; the invention provides a cotton fiber length measuring system and method with high automation degree, high efficiency and accurate measurement.
Description
Technical Field
The invention relates to the field of cotton processing, in particular to a cotton fiber length measuring system and method.
Background
The length of a cotton fiber refers to the distance between the two ends of a piece of cotton fiber when it straightens. The length of cotton fiber is closely related to the quality of cotton yarn. Under other conditions, the yarn spun by the longer cotton fiber has higher strength, the spinnable yarn is thinner and the evenness is more uniform, so the length of the cotton fiber is one of important indexes for expressing the quality of raw cotton. In the process of stretching the yarn to break, the cohesion force between fibers in the yarn is improved along with the increase of the length of the fibers, the slip rate between the fibers is relatively reduced, the strength of the finished yarn is increased, and the breakage rate is correspondingly reduced during spinning. The flock rate of raw cotton is an important factor influencing the yarn evenness and the yield, and the evenness of spun yarn of raw cotton with high flock rate is also poor. The length of cotton fiber is also one of the bases for adjusting or designing spinning process parameters.
Cotton fiber length testing is commonly performed on commercial receipts and payouts using the manual pull-down method. Due to the demands of spinning technology, various fiber length inspection methods and instruments, such as a patterning method, a comb sheet type, a thickness measuring method, an optoelectronic type, an air flow type, a capacitive type, etc., are gradually developed. The length indicators measured by the various methods and instruments are not exactly the same. With the development of science, semi-automatic and full-automatic fiber length meters are developed towards the testing of correct, rapid and multi-index devices. However, the prior art method has various drawbacks. For example, the manual ruler measuring method is slow, and the length error of the manual ruler is large due to different manual methods of operators. The 90 th generation introduced the length index of the length photographic instrument test as the span length (SPAN LENGTH), however, by the 21 st century, the length index of cotton was changed into the Upper half average length (Upper HALF MEAN LENGTH) and the uniformity index (Regularity Index) both internationally and domestically, and the original span length was eliminated.
In summary, the prior art also lacks a cotton fiber length measurement system and method with high automation degree, high efficiency and accurate measurement.
Disclosure of Invention
In order to solve the technical problems, the invention provides a cotton fiber length measuring system and method with high automation degree, high efficiency and accurate measurement.
In a first aspect of the invention, there is provided a cotton fiber length measurement system comprising: the device comprises a sampler, a host and an analyzer;
The sampler comprises: the cotton storage cylinder, the porous plate, the rotating mechanism, the bracket and the sampling comb; the cotton storing device comprises a cotton storing barrel, a porous plate, a rotating mechanism, a sampling comb and a cotton fiber collecting device, wherein a part of the barrel wall of the cotton storing barrel is hollowed out, the porous plate is arranged on the barrel wall of the hollowed-out part of the cotton storing barrel, the cotton storing barrel is arranged on a support, the rotating mechanism is connected with the support and can rotate around the outer wall of the cotton storing barrel, a comb needle is arranged on one side of the sampling comb, a slot for the sampling comb to be inserted is formed in the rotating mechanism, the rotating mechanism can drive the sampling comb to rotate around the cotton storing barrel, and cotton fibers in the cotton storing barrel are obtained at the porous plate;
The host computer includes: the device comprises a shell, a comb frame, a sampling comb, a cotton carding table, a light source receiving and transmitting device, comb frame driving equipment and a controller; one surface of the shell is an opening surface, the controller is connected with the shell and covers the lower part of the opening surface, the comb frame is connected with the cotton carding table and is arranged on the controller, the sampling comb is arranged on the comb frame, the comb frame driving equipment is arranged in the shell and is connected with the comb frame and drives the comb frame to move, one end of the light source transceiver is rotatably connected between the shell and the controller, and the light source transceiver can cover the upper part of the opening surface when being closed and is arranged on the upper part of the sampling comb;
The analyzer comprises a display and a data processor, wherein the data processor is electrically connected with the display, the data processor receives data of the measured fiber position and the light intensity transmitted through the fiber, which are acquired by the light source transceiver, and draws a correlation curve of the two data, and the correlation curve is displayed on the display.
Preferably, the controller comprises a microcomputer, a display screen and a control panel; the microcomputer is connected with the comb frame driving device and the light source receiving and transmitting device through electric signals, the display screen can display the running states of the comb frame driving device and the light source receiving and transmitting device, and the control panel can be used for an operator to control the comb frame driving device and the light source receiving and transmitting device.
Preferably, the comb frame driving device comprises a power supply, a stepping motor, a coupler and a screw rod; the stepping motor is connected with the screw rod through the coupler, the screw rod is connected with the comb frame, the power supply is connected with the stepping motor through a wire and supplies power for the stepping motor, and the stepping motor is connected with the controller through an electric signal.
Preferably, the cotton fiber length measurement system further comprises a limiting device, wherein the limiting device comprises a front limiting part, a rear limiting part and a limiting strip; the front limit and the rear limit are respectively arranged at the front part and the rear part of the inner wall of the shell, the screw rod is connected with the limit bar, and the front limit and the rear limit are respectively provided with a clamping groove for blocking the vertical movement of the limit bar.
Preferably, the analyzer comprises a computer embedded with software for rendering two data-dependent images.
Preferably, the analyzer further comprises a printing device for printing the correlation curve.
Preferably, the cotton fiber length measuring system further comprises a card clothing, and the card clothing is arranged on the outer wall of the cotton storage cylinder.
In a second aspect of the invention, there is provided a method of a cotton fiber length measurement system comprising the steps of:
1) Acquiring cotton fibers by adopting the sampler;
2) Placing cotton fibers in the host machine, and measuring data of fiber positions and light intensity transmitted through the fibers;
3) The host computer communicates data of fiber position and intensity of light transmitted through the fiber to the analyzer, which generates the correlation curve.
Preferably, step 1) is to insert an empty sampling comb into the slot of the rotating mechanism, put the test sample into the cotton storage cylinder of the sampler with the comb needle up, and press the test sample onto the porous plate, and the rotating mechanism rotates a whole rotation in a counterclockwise direction to drive the sampling comb to randomly grab fibers when passing through the porous plate.
Preferably, step 2) is that the comb frame driving device drives the sampling comb on the comb frame to move, and the light source transceiver measures data of fiber position and light intensity transmitted through the fiber.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that: the invention provides a cotton fiber length measuring system and method with high automation degree, high efficiency and accurate measurement.
Drawings
FIG. 1 is a schematic diagram of a cotton fiber length measuring system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a sampler of a cotton fiber length measuring system according to an embodiment of the present invention;
FIG. 3 is a schematic view of a sampling comb of a cotton fiber length measuring system according to an embodiment of the present invention;
FIG. 4 is a plan view of a cotton fiber length measuring system host according to an embodiment of the present invention;
FIG. 5 is a perspective view of a cotton fiber length measuring system host in an embodiment of the present invention;
FIG. 6 is a circuit diagram of a cotton fiber length measurement system according to an embodiment of the present invention;
FIG. 7 is a method diagram of a cotton fiber length measurement system according to an embodiment of the present invention;
FIG. 8 is a graph showing the results of measuring cotton fibers by the cotton fiber length measuring system according to an embodiment of the present invention;
In the accompanying drawings: 1. 1.1, 1.2, 1.3, 1.4, 1.6, 1.7, 1.6.1, 1.3, 1.2, 1.3, 1.4, 1.3, 1.2, 2.2, 1.1, 1.6, 1.2, 2.2, 2.3, 2.5, 2.6, 2.7, 2.8, 2.9, 2.10, 2.11, 2.12, 2.14, 2.13, 2.14, middle slide block.
Detailed Description
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
Referring to fig. 1, there is shown a block diagram of a cotton fiber length measurement system, which includes a sampler 1, a host 2, and an analyzer 3; the sampler 1 acquires the fiber for detection, the host 2 detects the fiber, and the analyzer 3 analyzes and displays the detection result.
In this embodiment, the analyzer 3 is a computer.
Referring to fig. 2 and 3, there are shown structural diagrams of a sampler including a cotton storage cylinder 1.1, a porous plate 1.2, a card clothing 1.3, a rotating mechanism 1.4, a bracket 1.5, a sampling comb 1.6, cotton fibers 1.7, a sampling comb body 1.6.1, and a sampling needle 1.6.2. The cotton storage cylinder 1.1 is a cylinder with a hollow inside, the opening end of the cotton storage cylinder 1.1 faces outwards, the closing end of the cotton storage cylinder is fixed on the support 1.5, the right side wall of the cotton storage cylinder 1.1 is provided with an opening, a groove-shaped wall beside the opening is provided with a groove, the card clothing 1.3 is fixed on the left side of the groove-shaped wall of the cotton storage cylinder 1.1, the porous plate 1.2 is fixed on the right side of the groove-shaped wall of the cotton storage cylinder 1.1, and the opening arranged on the right side wall of the cotton storage cylinder 1.1 is covered. The rotating mechanism 1.4 is movably connected to the joint of the cotton storage cylinder 1.1 and the bracket 1.5, the concrete connection mode is that two ends of a connecting rod are fixed on the cotton storage cylinder 1.1 and the bracket 1.5, the rotating mechanism 1.4 is sleeved on the connecting rod between the cotton storage cylinder 1.1 and the bracket 1.5, the rotating mechanism 1.4 can rotate around the connecting rod, the rotating mechanism 1.4 is outside the outer wall of the cotton storage cylinder 1.1, and the rotating mechanism 1.4 also rotates around the outer wall of the cotton storage cylinder 1.1 when rotating. The sampling comb 1.6 is fixed to the rotary mechanism 1.4.
In this embodiment, the rotation mechanism 1.4 includes a first arm, a second arm, and a handle; the first arm is parallel to the outer wall of the cotton storage cylinder 1.1, the sampling comb 1.6 is arranged in a slot of the first arm, the second arm is vertically connected to the tail end of the first arm, and the handle is arranged at the tail end of the second arm.
In this embodiment, the support 1.5 includes a support and a base, the support is fixed on the base, the cotton storage cylinder 1.1 and the rotation mechanism 1.4 are arranged on the support, and the universal wheel is arranged on the base.
Referring to fig. 4 and 5, there are shown the structure diagrams of the host machine, which includes a housing 2.1, a power supply 2.2, a stepping motor 2.3, a coupling 2.4, a screw rod 2.5, a front limit 2.6, a rear limit 2.7, a limit bar 2.8, a comb frame 2.9, a sampling comb 2.10, a light source transceiver 2.11, a cotton carding table 2.12, a controller 2.13, and a middle slider 2.14; the casing 2.1 is tetragonal, 1 face opening in 6 faces of the tetragonal casing 2.1, and the power supply 2.2, the stepping motor 2.3, the coupling 2.4 and the screw rod 2.5 are arranged in the casing 2.1 and are connected in sequence. The front limit 2.6 and the rear limit 2.7 are arranged on the right side wall of the shell 2.1, the middle slide block 2.14 is arranged at the tail end of the screw rod 2.5, the limit bar 2.8 is connected with the middle slide block 2.14, and the movement of the screw rod 2.5 in the vertical direction can be limited through the limit bar 2.8, the front limit 2.6 and the rear limit 2.7; the controller 2.13 is fixed on the air interface surface of the shell 2.1, the comb frame 2.9 and the cotton carding table 2.12 are connected in sequence and are arranged above the controller 2.13, and the comb frame 2.9 is connected with the screw rod 2.5. One end of the light source transceiver 2.11 is rotatably connected between the housing 2.1 and the controller 2.13, and the upper part of the opening surface of the housing 2.1 can be covered when the light source transceiver 2.11 is closed.
In this embodiment, the controller 2.13 includes a microcomputer, a display screen, and a control panel; the microcomputer is connected with the stepping motor 2.3 and the light source transceiver 2.11 through electric signals, the display screen can display the running states of the stepping motor 2.3 and the light source transceiver 2.11, and the control panel can be used for an operator to control the stepping motor 2.3 and the light source transceiver 2.11.
In the embodiment, the control panel comprises a number key, which is 10 bits from 0 to 9, and can be used for setting the number when hardware calibration is performed; and the function key consists of nine keys such as reset key, self-checking key, hardware calibration key, test key, confirm key, length key, A0 key and motor key. The functions are as follows: 1) Reset key: when the driving platform is not stopped at the designated position for a certain reason, a reset key can be pressed to restore the driving platform to the initial position; 2) Self-checking key: checking whether the instrument is set correctly or not by using a standard optical measuring plate and a standard length scale; 3) Hardware calibration key: calibrating the instrument with a standard optical measuring plate and a standard length scale; 4) Test key: the conventional test needs to press the key, so that besides the test key on the control panel, a test button is also arranged on the chassis panel, and the functions of the test button are the same, so that any test key can be pressed during the test; 5) Confirmation key: when the display screen prompts that the confirmation key is needed to be pressed, the display screen is used; 6) Amount bond: use in self-checking and hardware calibration of the value of amounts; 7) Length key: used in self-checking and hardware calibration of length values; 8) A0: when nothing is in the light source receiving emitter, an amountzero value can be checked; 9) Motor key: it is checked whether the motor is operating normally.
Referring to fig. 6 and 7, which are circuit and method diagrams of a cotton fiber length measuring system, the method of using the cotton fiber length measuring system of the present invention comprises the steps of:
1) Acquiring cotton fibers by adopting the sampler;
2) Placing cotton fibers in the host machine, and measuring data of fiber positions and light intensity transmitted through the fibers;
3) The host computer communicates data of fiber position and intensity of light transmitted through the fiber to the analyzer, which generates the correlation curve.
The using method of the sampler specifically comprises the following steps:
1) Inserting an empty sampling comb 6 into the rotating mechanism 4, arranging the comb needle 6.2 upwards, putting the cotton fibers 7 into the cotton storage cylinder 1, pressing the cotton fibers on the porous plate 2, keeping uniform pressure on the surface of a sample, rotating the rotating mechanism 4 in a counterclockwise direction for a whole rotation to drive the sampling comb 6 to randomly grab the fibers when passing through the porous plate 2, carding through the card clothing 3, and taking out the sampling comb 6 when the sampling comb 6 has formed fiber test tufts;
2) In the case of re-sampling, the sample is turned over to present a new surface on the porous plate 2, and then the above-mentioned operation is repeated.
3) The waste cotton on the card clothing 3 is cleaned with a cleaning brush at regular intervals to maintain an effective carding action. When changing a new sample, the waste cotton on the card clothing 3 must be completely brushed clean.
The use method of the host specifically comprises the following steps:
1) The stepping motor drives the screw rod to drive the sampling comb on the comb frame to move in the vertical direction;
2) The light source transceiver above the sampling comb acquires the position of the cotton fiber and the data of the light intensity of the transmitted fiber in real time in the moving process of the sampling comb.
Example 2
Short and long cotton samples were tested using the system of example 1 of the present invention, the method consisting essentially of:
1. Preparation of the samples
The sampling comb is inserted into the slot of the rotating mechanism, the comb needle is arranged on the upper part, a test sample is placed into the cotton storage cylinder of the sampler and is pressed on the porous plate, and the rotating mechanism rotates in a whole rotation in the anticlockwise direction to drive the sampling comb to randomly grab fibers when passing through the porous plate.
2. Preparation of an environment
1. The humidity adjusting and testing atmosphere accords with the GB 6529D regulation, the temperature is (20+/-2) DEG C, and the relative humidity is (65+/-3).
2. The test samples were conditioned to the standard atmospheric balance for testing.
3. The conditioning starts from a drier state. Conditioning typically requires exposure to flowing air for at least 2 hours.
3. Host hardware calibration and self-test
1. Hardware calibration
After the power of the instrument is turned on, the instrument automatically performs initialization setting,
1) Amountzero calibration: nothing is put on the driving platform, the hardware calibration key is pressed, and the A 0 key is pressed to directly perform the Amount zero calibration. (if hardware correction is needed, the Amount zero position must be corrected first)
2) Amount calibration: the light source emission cover is turned over, the standard optical measuring plate is inserted into the hook of the driving table, the emission cover is closed, the calibration key is pressed, the Amount key is pressed again, the standard value of the standard optical measuring plate is input, and if the displayed Amount value is consistent with the value to be input, the confirmation key is directly pressed to calibrate the Amount.
3. Standard length calibration:
the light source emission cover is turned over, the standard length ruler is inserted into the hook of the driving platform, the emission cover is closed, the 'calibration' key is pressed, the 'length' key is pressed again, the standard length value is input, and if the displayed length value is consistent with the value to be input, the 'confirmation' key is directly pressed for length calibration.
2. Self-checking:
1) Opening the light source emission cover, inserting the standard optical measuring plate into the hook of the driving table, closing the emission cover, pressing a self-checking key, pressing an Amount key, and checking whether the Amount value is correct;
2) The light source emission cover is turned over, the standard length ruler is inserted into the hook of the driving table, the emission cover is closed, the self-checking key is pressed, the Amount key is pressed, and whether the length is correct is checked.
After that, only the value of the Amount of the standard optical measuring plate and the value of the standard length ruler are required to be self-checked to be within the standard range, and if the value is within the standard range, hardware calibration is not required to be performed again. If the range is out, performing hardware calibration.
4. Establishing communication between computer and host
1. The communication cable of the host computer and the computer is connected well. Then, the computer power supply and the host power supply are turned on (note that the cover of the host must be boxed when the host power supply is turned on).
2. Establishing communication
1) Clicking a menu on a computer desktop to enter a login interface;
2) Inputting an account number and a password, and entering a welcome interface according to login;
3) Click calibration;
4) Modification of cotton sample parameters
When the standard sample is not consistent with the computer displayed value, the value needs to be modified. Clicking the lower left "parameter" of the calibration window, and filling the standard sample value into the window. Short fibers are filled on the left side, and long fibers are filled on the right side. The completion of filling is returned to the calibration window. If the obtained standard cotton sample is consistent with the numerical value displayed on the computer, the step is not needed and the next step is directly carried out. If the obtained standard cotton sample is consistent with the numerical value displayed on the computer, the step is not needed and the next step is directly carried out.
5) Clicking on "start" and then clicking on "confirm" in the calibration window;
6) The serial port is selected, the receiving is clicked, the communication connection between the computer and the host is normal, and the calibration can be started.
5. Calibration of
The communication window can be moved to other positions in the calibration window without blocking the test result.
1. Test standard 1 (short cotton sample)
1) The light source receiving and transmitting device is turned on, the sampling comb of the short cotton sample is inserted into the slot of the rotating device, the brush brushes the fiber for a plurality of times in a stable action, so that the free fiber is removed, other fibers are straightened and are not combined, and the light source receiving and transmitting device is turned off after preparation.
2) The test is performed by pressing the test key or the test switch on the panel of the host (since the test key is pressed a lot of times, a test switch is additionally installed on the panel of the instrument, and the function is the same as the test key). If the computer needs to display the photographic curve, the computer hooks in the white frame of which the curve is displayed after each measurement, and if the computer does not need to display the curve, the computer does not hook.
3) The test data rolls in the communication information column, the step number and the numerical value are displayed until the data transmission is finished, and the test result of the short fiber is displayed. The method comprises the steps of taking the same standard cotton sample at least 10 times, repeatedly testing, deleting the shortest value of the average length of the upper half part, deleting the longest value of the average length of the upper half part, taking the average value, wherein the error of the average length of the upper half part is smaller than 0.5mm, deleting the lowest value of the uniformity index, deleting the highest value of the uniformity index, taking the average value, and taking the average value, wherein the error of the uniformity index is smaller than 2%, if a small amount of the average value exceeds that of the average value, repeatedly taking a plurality of standard samples for testing, and taking the average value, so that the error caused by various factors can be reduced. The test end clicks the "done" key.
2. Test standard 2 (Long cotton sample)
The testing method is consistent with the step of testing the short fibers.
3. When the test of the short and long standard samples is finished, the calibration can be realized only by clicking a calibration key in the middle of the lower left of the window. The computer calculates the data such as the slope, the offset and the like after the calibration. Click "hold" after calibration is completed. Clicking back again returns to the welcome window. If the calibration result is not wanted to be reserved, the user can directly click back without clicking hold.
6. Measurement of
In the welcome window, click on the second item "detect", display the following screen.
1. Modifying standard length value of short velvet and establishing communication between host and computer
1) The length value of the upper right part of the "change short velvet" at the lower left part of the click window changes to blue, and at this time, the standard value of the short velvet length can be modified. If no modification is needed, no click on "change flock" is needed. The length value of the flock must be consistent with the standard sample held by you;
2) If the photographic curve needs to be checked every time, hooking is performed in the box for checking the photographic curve every time at the upper right, and if not, unhooking is performed.
3) Clicking on "start" because communication has been established just as calibrated, the following window is displayed by clicking on "start".
2. The transmitting cover is opened, the sampling comb for taking cotton samples is inserted into the hook clamp of the driving table, the brush brushes fibers for a plurality of times in the direction away from the conveying clamp in a stable action, so that free fibers are removed, other fibers are straightened and are not combined, and the transmitting cover is closed after preparation.
3. Pressing the test key on the panel of the host computer, rolling the test data in the communication information column, indicating the steps and the numerical values until the data transmission is finished, and displaying the average length, the uniformity index and the short fiber content value of the upper half part of the cotton fiber. The number of measurements per sample can be determined at the discretion of the user. Preferably more than 8 times, and then averaged.
4. And after the test is finished, clicking a return key of the communication information window, and closing the communication window. If the data is to be saved and clicked, if the clickable cancel is not needed to be saved, the data can be directly returned to the welcome window, and the clickable return can be clicked to click out of the measurement window on the pop-up widget. Where the results may be printed out or saved.
6. Querying
Clicking the "query" key at the bottom left of this window, the original gray box and word will be highlighted, at which point any way can be selected for querying. Queries may also be clicked.
1. Selecting a detection list number frame, and inquiring according to the detection list number;
2. The sample number selecting frame inquires according to the sample number;
3. the purchase and inspection unit box is inquired according to the inspection unit;
4. The purchasing operator frame is inquired according to operators;
5. the selective purchase remark information frame is inquired according to remark information;
6. purchasing a detection time frame and a time range frame, and inquiring a test result for a period of time;
7. several boxes may also be purchased to make a combined query.
Example 3
The primary measurement results of the short fibers in example 2 are shown in fig. 8, in which the average length is shown by the length value shown by the intersection point of the tangent line and the length coordinate axis, which is the tangent line of the photographic curve from the position where the number of fibers is 100% in the photographic graph; the average length of the upper half part is that in the photographic graph, a tangent line of the photographic graph is formed from 50% of the number of fibers, and the length value displayed by the intersection point of the tangent line and the length coordinate axis is displayed; uniformity index, the average length is the percentage of the average length of the upper half when the cotton length is tested.
The 10 results statistics for the long and short fibers in example 2 are as follows:
1. Cotton fiber length range: 18 mm-50 mm;
2. Cotton fiber sample size (amountj): 550-900;
3. the same cotton was repeatedly tested 10 times in succession, and the difference between the maximum value and the minimum value of the average length of the upper half measured was not more than + -0.3 mm, and the difference between the measured values of the length uniformity index was not more than + -1.0%.
It can be seen that the system of the present invention measures cotton fibers with stable and accurate results.
Furthermore, the following experiments were performed on the stability of the system of the present invention: the system is continuously operated for 4 hours and then is detected, and the detection result is as follows:
1. Self-checking with a metal length standard, wherein the difference is not more than 0.25mm;
2. Self-checking with an optical measuring plate, wherein the difference is not more than 10;
3. the difference between the measurements of the average length of the upper half is no greater than + -0.5 mm and the difference between the measurements of the length uniformity index is no greater than + -1.5% as measured with a length calibration cotton sample (HVICC).
The system provided by the invention has higher stability and is suitable for industrial production.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.
Claims (7)
1. A cotton fiber length measurement system, comprising: the device comprises a sampler, a host and an analyzer;
The sampler comprises: the cotton storage cylinder, the porous plate, the rotating mechanism, the bracket and the sampling comb; the cotton storing device comprises a cotton storing barrel, a porous plate, a rotating mechanism, a sampling comb and a cotton fiber collecting device, wherein a part of the barrel wall of the cotton storing barrel is hollowed out, the porous plate is arranged on the barrel wall of the hollowed-out part of the cotton storing barrel, the cotton storing barrel is arranged on a support, the rotating mechanism is connected with the support and can rotate around the outer wall of the cotton storing barrel, a comb needle is arranged on one side of the sampling comb, a slot for the sampling comb to be inserted is formed in the rotating mechanism, the rotating mechanism can drive the sampling comb to rotate around the cotton storing barrel, and cotton fibers in the cotton storing barrel are obtained at the porous plate; the cotton storage cylinder is movably connected with the bracket, two ends of a connecting rod are fixed on the cotton storage cylinder and the bracket, the connecting rod between the cotton storage cylinder and the bracket is sleeved with the rotating mechanism, the rotating mechanism can rotate around the connecting rod, the rotating mechanism is arranged outside the outer wall of the cotton storage cylinder, and the rotating mechanism also rotates around the outer wall of the cotton storage cylinder when rotating; the rotating mechanism comprises a first arm, a second arm and a handle; the first arm is parallel to the outer wall of the cotton storage cylinder, the sampling comb is arranged in a slot of the first arm, the second arm is vertically connected to the tail end of the first arm, and the handle is arranged at the tail end of the second arm; the support comprises a support rod and a base, the support rod is fixed on the base, the cotton storage cylinder and the rotating mechanism are arranged on the support rod, and the universal wheels are arranged on the base;
The host computer includes: the device comprises a shell, a comb frame, a sampling comb, a cotton carding table, a light source receiving and transmitting device, comb frame driving equipment and a controller; one surface of the shell is an opening surface, the controller is connected with the shell and covers the lower part of the opening surface, the comb frame is connected with the cotton carding table and is arranged on the controller, the sampling comb is arranged on the comb frame, the comb frame driving equipment is arranged in the shell and is connected with the comb frame and drives the comb frame to move, one end of the light source transceiver is rotatably connected between the shell and the controller, and the light source transceiver can cover the upper part of the opening surface when being closed and is arranged on the upper part of the sampling comb; the device also comprises a limiting device, wherein the limiting device comprises a front limit, a rear limit and a limiting strip; the comb frame driving device comprises a power supply, a stepping motor, a coupler and a screw rod; the stepping motor is connected with the screw rod through the coupler, the screw rod is connected with the comb frame, the power supply is connected with the stepping motor through a wire and supplies power to the stepping motor, and the stepping motor is connected with the controller through an electric signal; the front limit and the rear limit are respectively arranged at the front part and the rear part of the inner wall of the shell, the screw rod is connected with the limit bar, the front limit and the rear limit are respectively provided with a clamping groove for blocking the vertical movement of the limit bar, the front limit and the rear limit are arranged on the right side wall of the shell, the middle slide block is arranged at the tail end of the screw rod, the limit bar is connected with the middle slide block, and the movement of the screw rod in the vertical direction can be limited through the limit bar, the front limit and the rear limit; the controller is fixed on the hollow surface of the shell, the comb frame and the cotton carding table are connected in sequence and are arranged above the controller, the comb frame is connected with the screw rod, one end of the light source transceiver is rotatably connected between the shell and the controller, and the upper part of the opening surface of the shell can be covered when the light source transceiver is closed; the controller comprises a microcomputer, a display screen and a control panel; the microcomputer is connected with the comb frame driving device and the light source receiving and transmitting device through electric signals, the display screen can display the running states of the comb frame driving device and the light source receiving and transmitting device, and the control panel can be used for an operator to control the comb frame driving device and the light source receiving and transmitting device; the control panel comprises: a reset key for use when the drive table is not at the designated position, and the drive table is restored to the initial position; the self-checking key checks whether the instrument is set correctly or not by using a standard optical measuring plate and a standard length scale; hardware calibration key, calibrating instrument with standard optical measuring plate and standard length scale; a test key for use in conventional testing; the confirmation key is used when the display screen prompts that the confirmation key is needed to be pressed; an Amount key for use in self-checking and hardware calibration of the Amount value; a length key for use in self-checking and hardware calibration of length values; the A0 key is used for emptying the inside of the light source receiving emitter and checking the value of Amount; ma Dajian for checking whether the stepping motor is used when running normally;
The analyzer comprises a display and a data processor, wherein the data processor is electrically connected with the display, the data processor receives data of the measured fiber position and the light intensity transmitted through the fiber, which are acquired by the light source transceiver, and draws a correlation curve of the two data, and the correlation curve is displayed on the display.
2. The cotton fiber length measuring system according to claim 1, wherein the analyzer comprises a computer embedded with software for mapping two data correlation images.
3. The cotton fiber length measurement system of claim 1, wherein the analyzer further comprises a printing device for printing the correlation curve.
4. The cotton fiber length measurement system of claim 1, further comprising a card clothing, the card clothing being disposed on an outer wall of the cotton storage canister.
5. A cotton fiber length measuring method, characterized by being applied to the cotton fiber length measuring system according to any one of claims 1 to 4, comprising the steps of:
1) Acquiring cotton fibers by adopting the sampler;
2) Placing cotton fibers in the host machine, and measuring data of fiber positions and light intensity transmitted through the fibers;
3) The host computer communicates data of fiber position and intensity of light transmitted through the fiber to the analyzer, which generates the correlation curve.
6. The method of claim 5 wherein step 1) is to insert an empty sampling comb into said slot of said rotary mechanism with the comb needle up, place test sample into said hopper of said sampler and against said porous plate, said rotary mechanism rotating one full revolution in a counter-clockwise direction to randomly grasp fibers as the sampling comb passes through the porous plate.
7. The method of claim 6, wherein step 2) is the step of the comb frame driving device driving the sampling comb on the comb frame to move, and the light source transceiver measures data of fiber position and light intensity transmitted through the fiber.
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| CN112268905B (en) * | 2020-10-27 | 2023-05-30 | 泉州师范学院 | Image detection method of short fiber content in textile fibers |
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| US4225244A (en) * | 1977-04-28 | 1980-09-30 | Matix Ag | Device for indicating fibre length distribution of a fibre sample |
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