CN113624096B - Short cotton fiber length measuring instrument - Google Patents
Short cotton fiber length measuring instrument Download PDFInfo
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- CN113624096B CN113624096B CN202110879941.7A CN202110879941A CN113624096B CN 113624096 B CN113624096 B CN 113624096B CN 202110879941 A CN202110879941 A CN 202110879941A CN 113624096 B CN113624096 B CN 113624096B
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- measuring column
- treatment cylinder
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- measuring
- cotton
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention relates to the technical field of cotton fiber treatment, and discloses a cotton short fiber length measuring instrument which comprises a treatment cylinder and a fan arranged on one side of the treatment cylinder, wherein a treatment cavity is arranged in the treatment cylinder, an air outlet hole is further formed in a shell of the treatment cylinder, a cylindrical measuring column is rotatably arranged in the treatment cavity, a clamping mechanism is arranged on the measuring column to clamp cotton fiber bundles, a rolling roller parallel to the measuring column is arranged on one side of the measuring column, a driving mechanism is further arranged on the treatment cylinder to drive the rolling roller to do circular motion around the measuring column, the rolling roller is attached to the outer surface of the measuring column, a plurality of marking lines extending along the axial direction of the outer surface of the measuring column are formed in the outer surface of the measuring column, and length scale marks are further arranged on the end face of the measuring column to correspondingly measure lengths of different marking lines. The method is simple to operate, can rapidly measure the length of the cotton staple fibers, and has relatively accurate measurement results and relatively accurate measurement results.
Description
Technical Field
The invention relates to the technical field of cotton fiber processing, in particular to a cotton short fiber length measuring instrument.
Background
The fiber length is an important technological index in textile production, and has close relation with the selection of textile technology. The main methods for measuring the length of cotton fibers at home are a manual ruler measuring method and a high-capacity fiber tester measuring method. The manual ruler measuring method is widely applied in industry, has high requirements on personnel and methods, has low detection speed and has low efficiency when detecting a large amount of samples. Limited by physiological factors such as detection time, physical strength, energy and the like, the cotton inspector can manually detect about 60 samples each day. In actual detection work, in order to ensure the working efficiency, an inspector often only performs manual detection on a representative sample, which can reduce the detection rate of unqualified samples and bring about a great working quality risk.
Disclosure of Invention
The invention aims to provide a cotton short fiber length measuring instrument which is used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the cotton short fiber length measuring instrument comprises a processing cylinder and a fan arranged at one side of the processing cylinder, wherein a processing cavity is arranged in the processing cylinder, and an air outlet hole is further formed in a shell of the processing cylinder.
The processing chamber rotation is installed cylindric measuring column, is equipped with fixture on the measuring column, in order to centre gripping cotton fiber bundle, measuring column one side be equipped with rather than parallel roll, and still install actuating mechanism on the processing section of thick bamboo, in order to order about measuring the column and do circular motion, and roll and measuring column and surface laminating.
The outer surface of the measuring column is provided with a plurality of marking lines extending along the axial direction of the measuring column, and the end face of the measuring column is also provided with length scale lines for correspondingly measuring the lengths of different marking lines.
As a further improvement of the scheme, the clamping mechanism comprises a groove formed in the surface of the measuring column and a plug plate slidably connected in the groove, wherein the groove is formed in the axial direction of the measuring column, a spring fixed with the plug plate is further arranged in the groove, one side, away from the spring, of the plug plate is fixedly provided with a plurality of connecting rods, the tail ends of the connecting rods extend out of the groove and are fixed on a pressing plate, and a clamping gap for clamping cotton fiber bundles is formed between the pressing plate and the outer wall of the measuring column.
As a further improvement of the scheme, a central rotating shaft is coaxially fixed at the center of the measuring column, the central rotating shaft is rotationally connected with the treatment cylinder, and a motor II for driving the central rotating shaft to rotate is arranged on the outer side of the treatment cylinder.
As a further improvement of the scheme, a connecting plate is sleeved on the outer side of the central rotating shaft, and one end of the connecting plate, which is far away from the central rotating shaft, is connected with one end of the grinding roller.
As a further improvement of the scheme, the connecting plate comprises a first plate and a second plate, wherein one side of the first plate is rotatably sleeved on the central rotating shaft through a bearing, a slot is formed in the other side of the first plate, a inserted bar connected with the slot is fixed on one side of the second plate, the inserted bar is directly connected with the inner wall of the slot through a return spring, and the other side of the second plate is connected with the rolling roller.
As a further improvement of the scheme, the driving mechanism comprises a first motor fixed on the outer wall of the treatment cylinder, and a first gear movably sleeved on the outer side of the central rotating shaft, wherein the first gear is fixed on the outer surface of the connecting plate, and the output end of the first motor extends into the treatment cylinder and is fixed with a second gear which is meshed with the first gear for transmission.
As a further improvement of the scheme, a notch is formed in one side of the shell of the treatment cylinder, a turnover cover is hinged to the notch through a hinge, and the movable end of the turnover cover is connected with the main body of the treatment cylinder through a lock catch.
As a further improvement of the scheme, two opposite inner walls of the treatment cylinder are symmetrically provided with rotary columns, one end of each rotary column is rotationally connected with the inner wall of the treatment cylinder, the other end of each rotary column is provided with a clamping groove, clamping columns which are connected with the rotary columns in a sliding mode are connected in the clamping grooves through elastic telescopic mechanisms, key grooves which are matched with the clamping columns in a clamping mode are correspondingly formed in two end faces of the central rotating shaft, and the key grooves are matched with the clamping columns to transmit torque, and one rotary column is connected with an output shaft of the motor II.
As a further improvement of the scheme, the treatment cylinder is made of transparent plastic, one side of the treatment cylinder far away from the fan is open, the shell at the open position is detachably provided with an end cover, and a plurality of air outlet holes are distributed in the end cover.
As a further improvement of the scheme, the elastic telescopic mechanism comprises a telescopic rod and a columnar spring sleeved on the outer side of the telescopic rod.
The beneficial effects of the invention are as follows:
according to the invention, the fan works to blow air into the treatment cylinder, and after one end of the cotton fiber bundle is fixed by the measuring column, the air flow blows the cotton fiber bundle, so that the cotton fibers can be unfolded, the function of carding the cotton fibers is achieved, and the length of the cotton fibers can be conveniently measured by the measuring column;
when measuring cotton fiber length, drive the roller that rolls round measuring column by actuating mechanism to can make cotton fiber expand the cladding and measure the surface of post, then observe the length scale value that the mark line of cotton fiber end department corresponds, record numerical value, be cotton fiber length promptly, can record the length that different cotton fibers correspond in the cotton fiber bundle, then take the average can regard as the fiber length value of this cotton fiber bundle, wherein the zero scale mark of measuring column is clamping mechanism's clamping point corresponding position.
In summary, the method is simple to operate, can rapidly measure the length of the cotton staple fibers, and has relatively accurate measurement results and relatively accurate measurement results.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A in accordance with the present invention;
FIG. 3 is a schematic view showing the internal structure of a treating cylinder in embodiment 1 of the present invention;
FIG. 4 is a schematic view showing the internal structure of a treating cylinder in embodiment 2 of the present invention;
FIG. 5 is an enlarged view of FIG. 4B in accordance with the present invention;
FIG. 6 is a schematic side view of a measuring column according to the present invention;
fig. 7 is a schematic diagram of an end face structure of a measuring column according to the present invention.
In the figure: fan 1, processing section of thick bamboo 2, processing chamber 3, roll roller 4, measuring column 5, flip-flop lid 6, cotton fiber bundle 7, end cover 8, clamp plate 9, connecting rod 10, motor one 11, cock plate 12, recess 13, spring 14, central pivot 15, gear one 16, connecting plate 17, gear two 18, hinge 19, elastic telescoping mechanism 20, draw-in groove 21, gyration post 22, joint post 23, stir board 24, 25, mark line 26, length scale mark 27, motor two 28, hasp 29.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
referring to fig. 1-3, fig. 6 and fig. 7, a cotton short fiber length measuring instrument comprises a processing cylinder 2 and a fan 1 arranged on one side of the processing cylinder 2, wherein a processing cavity 3 is arranged in the processing cylinder 2, and an air outlet is formed in a shell of the processing cylinder 2.
The processing chamber 3 is rotationally provided with a cylindrical measuring column 5, a clamping mechanism is arranged on the measuring column 5 to clamp cotton fiber bundles 7, one side of the measuring column 5 is provided with a grinding roller 4 parallel to the measuring column, the processing cylinder 2 is also provided with a driving mechanism to drive the grinding roller 4 to do circular motion around the measuring column 5, and the grinding roller 4 is attached to the outer surface of the measuring column 5.
The outer surface of the measuring column 5 is provided with a plurality of marking lines 26 extending along the axial direction thereof, and the end surface of the measuring column 5 is also provided with length scale lines 27 for correspondingly measuring the lengths of the different marking lines 26.
In operation, the fan 1 works to blow air into the treatment cylinder 2, and after one end of the cotton fiber bundle 7 is fixed by the measuring column 5, the air flow blows the cotton fiber bundle 7, so that cotton fibers can be unfolded, the function of carding the cotton fibers is achieved, and the length of the cotton fibers can be measured by the measuring column 5 conveniently;
when measuring cotton fiber length, there is actuating mechanism to drive the roller 4 to rotate round measuring column 5 to can make cotton fiber expand the cladding at measuring column 5's surface, then observe the length scale value that the mark line of cotton fiber end department corresponds, record numerical value, be cotton fiber length promptly, can record the length that different cotton fibers correspond in the cotton fiber bundle, then take the average can regard as the fiber length value of this cotton fiber bundle, wherein the zero scale mark of measuring column 5 is clamping mechanism's clamping point corresponding position.
Referring to fig. 2, as a further improvement of the above-mentioned scheme, the clamping mechanism includes a groove 13 formed on the surface of the measuring column 5, and a plug plate 12 slidably connected in the groove 13, wherein the groove 13 is formed along the axial direction of the measuring column 5, a spring 14 fixed to the plug plate 12 is further disposed in the groove 13, a plurality of connecting rods 10 are fixed to a side of the plug plate 12 away from the spring 14, the ends of the connecting rods 10 extend out of the groove 13 and are fixed to a pressing plate 9, and a clamping gap for clamping the cotton fiber bundles 7 is formed between the pressing plate 9 and the outer wall of the measuring column 5. One end of the cotton fiber bundle is clamped, so that the cotton fiber bundle can be blown and unfolded by a fan in the later stage, and the cotton fiber bundle is carded.
As a further improvement of the above scheme, a central rotating shaft 15 is coaxially fixed at the center of the measuring column 5, the central rotating shaft 15 is rotatably connected with the processing cylinder 2, and a second motor 28 for driving the central rotating shaft 15 to rotate is arranged at the outer side of the processing cylinder 2. The second motor 28 rotates to drive the cotton fiber bundles to be blown by the air flow at different positions, so that the air flow can comb the cotton fiber bundles more effectively, and the cotton fiber bundles are unfolded, so that measurement is more accurate.
In this scheme, the outside cover of center pivot 15 is equipped with connecting plate 17, and the one end that the connecting plate 17 kept away from center pivot 15 is connected with the one end of roll 4.
As a further improvement of the above solution, the connecting plate 17 includes a first plate and a second plate, where one side of the first plate is rotatably sleeved on the central rotating shaft 15 through a bearing, the other side of the first plate is provided with a slot, one side of the second plate is fixed with a plug rod connected with the slot, the plug rod is directly connected with the inner wall of the slot through a return spring, and the other side of the second plate is connected with the rolling roller 4.
Through the structure, the roller 4 can be made to be tightly attached to the measuring column when rotating, so that cotton fiber bundles can be conveniently unfolded and coated on the outer side of the measuring column 5.
In this scheme, preferably, the driving mechanism includes a first motor 11 fixed on the outer wall of the treatment canister 2, a first gear 16 movably sleeved on the outer side of the central rotating shaft 15, the first gear 16 and the outer surface of the connecting plate 17 are fixed, and an output end of the first motor 11 extends into the treatment canister 2 and is fixed with a second gear 18 meshed with the first gear 16.
As a further improvement of the above scheme, a notch is formed on one side of the casing of the treatment canister 2, the notch is hinged with a flip cover 6 through a hinge 19, and the movable end of the flip cover 6 is connected with the main body of the treatment canister 2 through a lock catch 29. Through the structure, cotton fiber bundles are conveniently fixed in the treatment cylinder 2 by opening the overturning cover 6, so that the operation is convenient.
As a further improvement of the above scheme, the treatment cylinder 2 is made of transparent plastic, and one side of the treatment cylinder 2 far away from the fan 1 is open, and an end cover 8 is detachably mounted on the shell at the open position, and a plurality of air outlet holes are distributed on the end cover 8.
Preferably, the elastic telescopic mechanism 20 includes a telescopic rod and a cylindrical spring sleeved outside the telescopic rod.
Example 2:
referring to fig. 4 and 5, in embodiment 1, there is a problem that the measuring column is inconvenient to be assembled and disassembled, so that the measuring operation is inconvenient, so in this embodiment, as a further improvement of the above scheme, two opposite inner walls of the processing cylinder 2 are symmetrically provided with rotating columns 22, one end of each rotating column 22 is rotationally connected with the inner wall of the processing cylinder 2, the other end of each rotating column 22 is provided with a clamping groove 21, a clamping column 23 slidingly connected with the rotating column 22 is connected with the clamping column 21 through an elastic telescopic mechanism 20, two end surfaces of the central rotating shaft 15 are correspondingly provided with keyways which are in clamping fit with the clamping columns 23, and the keyways are matched with the clamping columns 23 to transmit torque, wherein one rotating column 22 is connected with an output shaft of the motor two 28. The outer surface of the clamping post 23 is also fixed with a toggle plate 24 between the rotary post 22 and the central rotary shaft 15, and the clamping post 23 can be conveniently moved by manually pushing the toggle plate 24, so that the central rotary shaft 15 and the rotary post 22 can be conveniently and rapidly installed and disassembled.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A cotton staple length gauge, characterized in that: comprises a treatment cylinder (2) and a fan (1) arranged at one side of the treatment cylinder (2), wherein a treatment cavity (3) is arranged in the treatment cylinder (2), and an air outlet is also formed in the shell of the treatment cylinder (2);
the processing chamber (3) is rotationally provided with a cylindrical measuring column (5), the measuring column (5) is provided with a clamping mechanism for clamping cotton fiber bundles (7), one side of the measuring column (5) is provided with a grinding roller (4) parallel to the measuring column, the processing cylinder (2) is also provided with a driving mechanism for driving the grinding roller (4) to do circular motion around the measuring column (5), and the grinding roller (4) is attached to the outer surface of the measuring column (5);
the outer surface of the measuring column (5) is provided with a plurality of marking lines (26) extending along the axial direction of the measuring column, and the end surface of the measuring column (5) is also provided with length scale marks (27) for correspondingly measuring the lengths of different marking lines (26);
the clamping mechanism comprises a groove (13) formed in the surface of the measuring column (5) and a plug plate (12) connected in the groove (13) in a sliding manner, wherein the groove (13) is formed in the axial direction of the measuring column (5), a spring (14) fixed with the plug plate (12) is further arranged in the groove (13), one side, far away from the spring (14), of the plug plate (12) is fixedly provided with a plurality of connecting rods (10), the tail ends of the connecting rods (10) extend out of the groove (13) and are fixed on a pressing plate (9), and a clamping gap for clamping cotton fiber bundles (7) is formed between the pressing plate (9) and the outer wall of the measuring column (5);
the center of the measuring column (5) is coaxially fixed with a center rotating shaft (15), the center rotating shaft (15) is rotationally connected with the treatment cylinder (2), and a motor II (28) for driving the center rotating shaft (15) to rotate is arranged on the outer side of the treatment cylinder (2).
2. A cotton staple length gauge as defined in claim 1 wherein: the outside cover of center pivot (15) is equipped with connecting plate (17), and the one end that center pivot (15) was kept away from to connecting plate (17) is connected with the one end of roller (4).
3. A cotton staple length gauge as defined in claim 2 wherein: the connecting plate (17) comprises a first plate and a second plate, wherein one side of the first plate is rotatably sleeved on the central rotating shaft (15) through a bearing, a slot is formed in the other side of the first plate, a inserted link connected with the slot is fixed on one side of the second plate, the inserted link is directly connected with the inner wall of the slot through a return spring, and the other side of the second plate is connected with the rolling roller (4).
4. A cotton staple length gauge as defined in claim 3 wherein: the driving mechanism comprises a first motor (11) fixed on the outer wall of the treatment cylinder (2), a first gear (16) movably sleeved on the outer side of the central rotating shaft (15), the first gear (16) and the outer surface of the connecting plate (17) are fixed, and the output end of the first motor (11) extends into the treatment cylinder (2) and is fixed with a second gear (18) meshed with the first gear (16).
5. A cotton staple length gauge as defined in any one of claims 1-4 wherein: a notch is formed in one side of the shell of the treatment cylinder (2), a turnover cover (6) is hinged to the notch through a hinge (19), and the movable end of the turnover cover (6) is connected with the main body of the treatment cylinder (2) through a lock catch (29).
6. The cotton staple length gauge as defined in claim 5 wherein: two relative inner walls symmetry of handling section of thick bamboo (2) are equipped with gyration post (22), and the one end and the handling section of thick bamboo (2) inner wall rotation of gyration post (22) are connected, and draw-in groove (21) have all been seted up to the other end of gyration post (22), are connected with joint post (23) rather than sliding connection through elastic telescoping mechanism (20) in draw-in groove (21), correspond on the both ends face of center pivot (15) set up with joint post (23) joint complex keyway, and the cooperation of keyway and joint post (23) is in order to transmit the moment of torsion, one of them gyration post (22) and the output shaft hookup of motor two (28).
7. The cotton staple length gauge as defined in claim 6 wherein: the treatment cylinder (2) is a transparent plastic product, one side of the treatment cylinder (2) far away from the fan (1) is open, the end cover (8) is detachably arranged at the open position, and a plurality of air outlet holes are distributed in the end cover (8).
8. The cotton staple length gauge as defined in claim 7 wherein: the elastic telescopic mechanism (20) comprises a telescopic rod and a cylindrical spring sleeved on the outer side of the telescopic rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110879941.7A CN113624096B (en) | 2021-08-02 | 2021-08-02 | Short cotton fiber length measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110879941.7A CN113624096B (en) | 2021-08-02 | 2021-08-02 | Short cotton fiber length measuring instrument |
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| Publication Number | Publication Date |
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| CN113624096A CN113624096A (en) | 2021-11-09 |
| CN113624096B true CN113624096B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110879941.7A Active CN113624096B (en) | 2021-08-02 | 2021-08-02 | Short cotton fiber length measuring instrument |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4982477A (en) * | 1988-10-07 | 1991-01-08 | Trutzschler Gmbh & Co. Kg | Method and apparatus for detecting sliver feed |
| CN101041914A (en) * | 2006-03-24 | 2007-09-26 | 里特机械公司 | Device to monitor a belt guide |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB420960A (en) * | 1933-05-19 | 1934-12-11 | Indian Central Cotton Committe | A new manner of and apparatus for ascertaining the mean length and/or the mean weight per unit of length of cotton or like fibres |
| GB835217A (en) * | 1955-03-21 | 1960-05-18 | Wool Ind Res Association | Method of and apparatus for measuring fibre length distribution in textile slivers, rovings and yarns |
| CH626123A5 (en) * | 1978-02-02 | 1981-10-30 | Zellweger Uster Ag | |
| CN2031509U (en) * | 1988-04-12 | 1989-01-25 | 张秉坚 | Length indicator for cotton fibre breaked off by hand |
| CH678068A5 (en) * | 1989-04-10 | 1991-07-31 | Peyer Ag Siegfried | |
| US5065527A (en) * | 1990-03-15 | 1991-11-19 | Shaw Howard C | Length measuring and positive drive apparatus |
| DE10311345A1 (en) * | 2003-03-14 | 2004-09-23 | Trützschler GmbH & Co KG | Device for determining the fiber lengths and the fiber length distribution on a fiber material sample, in particular in spinning preparation |
| CN204085382U (en) * | 2014-08-22 | 2015-01-07 | 山东出入境检验检疫局检验检疫技术中心 | The quick checkout equipment of cotton fiber length |
| ITUB20155168A1 (en) * | 2015-10-30 | 2017-04-30 | Mesdan Spa | METHOD AND MEASUREMENT DEVICE FOR MEASURING THE HUMIDITY CONTENT, LENGTH AND / OR AT LEAST A DYNAMOMETRIC CHARACTERISTIC OF TEXTILE FIBERS, IN PARTICULAR COTTON FIBERS. |
| WO2019211869A1 (en) * | 2018-05-03 | 2019-11-07 | Parthassarathy N | Fibre testing apparatus comprising rollers, scale, pad |
| CN208125058U (en) * | 2018-05-08 | 2018-11-20 | 郑州轻工业学院 | cotton fiber length measuring instrument |
| CN109913982B (en) * | 2019-03-08 | 2020-06-05 | 东华大学 | Combing method |
| CN212458592U (en) * | 2020-08-11 | 2021-02-02 | 上海康信光电仪器有限公司 | Fiber length analyzer |
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2021
- 2021-08-02 CN CN202110879941.7A patent/CN113624096B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4982477A (en) * | 1988-10-07 | 1991-01-08 | Trutzschler Gmbh & Co. Kg | Method and apparatus for detecting sliver feed |
| CN101041914A (en) * | 2006-03-24 | 2007-09-26 | 里特机械公司 | Device to monitor a belt guide |
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