CN112051170B

CN112051170B - Continuous organic fiber's wearability tester

Info

Publication number: CN112051170B
Application number: CN202010794541.1A
Authority: CN
Inventors: 李敏; 王欣怡; 王绍凯; 顾轶卓; 李庆辉; 韩建超
Original assignee: Beihang University
Current assignee: Beihang University
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-10-15
Anticipated expiration: 2040-08-10
Also published as: CN112051170A

Abstract

The invention discloses a wear resistance tester for continuous organic fibers, which has the advantages of simple structure, convenient operation and high testing efficiency, can test the wear resistance of the continuous organic fibers and different grinding materials under the action of different friction speeds and different tensions, can also change the testing conditions such as friction distance, friction angle, grinding roller types and the like for testing, can also test the wear resistance of the twisted continuous organic fibers, and can more accurately represent the wear resistance of the organic fibers under the twisting condition; the abrasion resistance can be evaluated by the reciprocating motion times of the grinding roller in a sliding abrasion mode, the abrasion resistance can also be evaluated by the rotating number of turns of the grinding roller in a rolling abrasion mode, and the abrasion resistance of various organic fibers in the production process and practical application can be simulated and evaluated more comprehensively and efficiently by representing the tension, the widening, the hairiness amount and the like of the organic fibers.

Description

Continuous organic fiber's wearability tester

Technical Field

The invention relates to the technical field of testing and evaluation of organic fibers, in particular to a wear resistance tester for continuous organic fibers.

Background

With the use of shuttleless, high-speed looms and the systematic development of fibers, fibers become more prone to breakage during weaving, and the breakage of fibers affects the continuous operation of the looms and also affects the quality of the fabric. Thus, the abrasion resistance of the fibers can affect the weavability itself. The higher the abrasion resistance, the better the processability of the fiber and the more durable the woven fabric, therefore, abrasion resistance is an important indicator for investigating the properties of the fiber. In the weaving process, the organic fiber mainly generates friction with a back beam, a weft insertion device and a dropper in various directions and properties. In order to study the abrasion resistance of the fiber, there are many studies on the design of an abrasion resistance tester for the fiber based on the above-mentioned frictional force. Due to the fact that various wear-resistant testers are available, the testing principle, the testing condition and the evaluation method of the wear-resistant testers are various, and the unified testing standard is lacked, different workers can evaluate the wear resistance of different organic fibers differently, and comparison cannot be conducted.

The test methods adopted at present are two types: (1) the fiber is used as an abrasive, the abrasion degree of the surface of the fiber is observed through mutual friction at a certain speed and times, and the abrasion resistance of the fiber is evaluated according to a test sample card; the method has the defects of unstable test conditions, large human error, more interference factors of other abrasion forms and the like, and can not ideally reflect the abrasion resistance of the organic fibers in the actual use process. (2) Taking hard materials (such as metal, wood, plastic and the like) as abrasive materials, rubbing with the fibers, and recording the rubbing times of the fibers, so as to measure the wear resistance of the fibers; the method has the advantages that the performance of the abrasive is stable, the test conclusion has certain comparability, however, the method has high requirements on the selection and manufacture of the abrasive, the organic fiber sample has large limitation, the adjustment and the control of the test frequency are not easy, the fluctuation of the test conclusion is large, the area of the abrasive contacted with the organic fiber in the test process is small, the accumulation of organic fiber falling objects is easy to generate, the application range and the flexibility of the test mechanism instrument are greatly limited, the test condition is not easy to adjust and control, the abrasion resistance of the twisted organic fiber is difficult to accurately test, only one group of samples can be tested simultaneously, the test efficiency is low, the abrasion resistance of the organic fiber can be represented only through the abrasion frequency, and the abrasion resistance of the organic fiber is difficult to accurately represent.

The organic fiber is often twisted during the processing and use, so the abrasion resistance test of the twisted organic fiber is also necessary. At present, the method of twisting the fiber and then transferring the fiber to a wear resistance instrument for wear resistance test is generally adopted for wear resistance test after fiber twisting, which not only can not ensure the uniformity of twist distribution after fiber twisting, but also can damage the fiber and influence the accuracy of the test result. In addition, compared with other fibers, the organic fibers have better wear resistance and are more difficult to fluff, and the amount of the fallen hairiness after abrasion is less, but the fallen hairiness is different in size and is mostly flocculent, so that the fallen hairiness is easy to remain on a friction dual surface to form an uneven residual layer, and the accuracy of the test is seriously influenced.

Disclosure of Invention

In view of the above, the present invention provides an abrasion resistance tester for continuous organic fibers, which is used to comprehensively and accurately reflect the abrasion resistance of continuous organic fibers, reduce the limitation of the use of the tester, expand the application range of the tester, increase the selectivity of test conditions, and solve the problem that the abrasion resistance of twisted fibers is difficult to test.

The invention provides a wear resistance tester for continuous organic fibers, which comprises: the yarn combing machine comprises an L-shaped support (1), a hook row (2) formed by a plurality of hooks side by side, a first yarn combing rod (3), a second yarn combing rod (4), a first tension rod (5), a second tension rod (6), a sliding rail (7), a sliding block (8), a grinding roller support (9), a grinding roller (10), a crank connecting rod (11), a disc (12), a first motor, a second motor (13), a first counter (14), a second counter (15), a U-shaped hook code (16), a baffle (17) and a twister (18); wherein the content of the first and second substances,

five first tracks (20-24) which are arranged along the horizontal direction are arranged on a back plate (19) of the L-shaped support (1) and correspond to the hook row (2), the first yarn combing rod (3), the first tension rod (5), the second tension rod (6) and the second yarn combing rod (4) in sequence, the upper end and the lower end of each first track are respectively provided with a first positioning clamping groove, and the hook row (2), the first yarn combing rod (3), the first tension rod (5), the second tension rod (6) and the second yarn combing rod (4) respectively slide on the corresponding first tracks and are positioned in the first positioning clamping grooves; the first positioning clamping grooves (20a) at the lower ends of the first rails (20) corresponding to the hook rows (2) are lower than the first positioning clamping grooves (21a, 22a, 23a, 24a) at the lower ends of the other four first rails (21-24), and the first positioning clamping grooves (20b) at the upper ends of the first rails (20) corresponding to the hook rows (2) are higher than the first positioning clamping grooves (21a, 22a, 23a, 24a) at the lower ends of the other four first rails (21-24) and lower than the first positioning clamping grooves (21b, 22b, 23b, 24b) at the upper ends of the other four first rails (21-24); the four first tracks (21-24) corresponding to the first yarn combing rod (3), the first tension rod (5), the second tension rod (6) and the second yarn combing rod (4) have the same height as the first positioning clamping grooves (21a, 22a, 23a, 24a) at the lower end and the first positioning clamping grooves (21b, 22b, 23b, 24b) at the upper end;

a second rail (25) is arranged on the grinding roller bracket (9), a plurality of second positioning clamping grooves are formed in the second rail (25), and the grinding roller (10) slides on the second rail (25) and is positioned in the second positioning clamping grooves through a bearing; the second positioning clamping groove at the lowest end on the second rail (25) is lower than the first positioning clamping groove (20b) at the upper end of the first rail (20) corresponding to the hook row (2), and the rest second positioning clamping grooves on the second rail (25) are higher than the first positioning clamping grooves (22a, 23a) at the lower ends of the first rails (22, 23) corresponding to the first tension bar (5) and the second tension bar (6);

the sliding rail (7) is fixed on a bottom plate (26) of the L-shaped support (1), and the sliding rail (7) is parallel to a back plate (19) of the L-shaped support (1); the sliding block (8) is connected with the sliding rail (7) in a sliding mode, and the grinding roller bracket (9) is fixed on the sliding block (8); one end of the crank connecting rod (11) is fixedly connected with the sliding block (8), and the other end of the crank connecting rod is connected with the disc (12) through a bearing (27); the disc (12) is connected with a bottom plate (26) of the L-shaped bracket (1) through a bearing (27) at the circle center; the first motor is connected with the disc (12) and used for driving the disc (12) to do uniform circumferential motion, the disc (12) drives the crank connecting rod (11) to do reciprocating motion, and the crank connecting rod (11) drives the sliding block (8), the grinding roller bracket (9) and the grinding roller (10) to do reciprocating motion on the sliding rail (7); when the grinding roller (10) is in a static state, the distance between the grinding roller and the first tension bar (5) and the distance between the grinding roller and the second tension bar (6) are equal in the horizontal direction, and the reciprocating motion track of the grinding roller (10) is located between the first tension bar (5) and the second tension bar (6); the first counter (14) is used for counting and displaying the rotation turns of the disc (12) before the organic fibers are broken; the second motor (13) is connected with the grinding roller (10) and used for driving the grinding roller (10) to rotate at a constant speed, and the second counter (15) is connected with the second motor (13) and used for counting and displaying the number of turns of the grinding roller (10) driven by the second motor (13) to rotate;

one end of the organic fiber is connected with the hooks in the hook row (2), and the other end of the organic fiber is connected with the U-shaped hook code (16);

during testing, the hook row (2), the first tension bar (5) and the second tension bar (6) are respectively positioned in first positioning clamping grooves (20a, 22a, 23a) at the lower ends of corresponding first rails (20, 22, 23), the first yarn combing bar (3) and the second yarn combing bar (4) are respectively positioned in first positioning clamping grooves (21b, 24b) at the upper ends of corresponding first rails (21, 24), and the grinding roller (10) is positioned in any second positioning clamping groove except the second positioning clamping groove at the lowest end and is used for enabling organic fibers to be wavy and to pass over the grinding roller (10) in a winding manner; the U-shaped hook code (16) spans the baffle (17), the top end of the baffle (17) is lower than the top end of the U-shaped hook code (16), the U-shaped hook code (16) naturally sags and prevents twisted organic fibers from driving the U-shaped hook code (16) to rotate, and the U-shaped hook code (16) is used for placing weights to apply tension to the organic fibers; rubbing the organic fibers with the grinding roller (10) under the reciprocating motion and/or rotation of the grinding roller (10) to carry out a wear resistance test;

during twisting, the hook row (2), the first tension rod (5) and the second tension rod (6) are respectively positioned in first positioning clamping grooves (20b, 22b, 23b) at the upper ends of corresponding first rails (20, 22, 23), the first yarn combing rod (3) and the second yarn combing rod (4) are respectively positioned in first positioning clamping grooves (21a, 24a) at the lower ends of corresponding first rails (21, 24), the grinding roller (10) is positioned in a second positioning clamping groove at the lowest end, the U-shaped hook code (16) is fixedly connected with the twister (18), and the position of the twister (18) is adjusted to twist organic fibers in a tension-free horizontal straightening state;

the grinding roller (10) is a cylindrical grinding roller; the surface of the grinding roller (10) is smooth, or the surface of the grinding roller (10) is provided with first grooves (28) for limiting the friction area of the organic fibers and the grinding roller (10), and the first grooves (28) are in any one of a semicircular shape, a V shape and a U shape; alternatively, the first and second electrodes may be,

the grinding roller (10) is a cylindrical grinding roller with a smooth surface, and the continuous organic fiber wear resistance tester also comprises a hairbrush (29) which is positioned below the grinding roller (10) and is in contact with the grinding roller (10) and a third motor which is connected with the hairbrush (29) and is used for driving the hairbrush (29) to rotate; wherein the grinding roller (10) and the hairbrush (29) rotate in opposite directions, or the rotating directions are the same and the rotating speeds are different; or the grinding roller (10) is static, and the brush (29) rotates; alternatively, the first and second electrodes may be,

the grinding rollers (10) comprise three cylindrical grinding rollers with smooth surfaces; one end of each grinding roller is connected with a connecting shaft (30), the three grinding rollers are located at three edges of the regular triangular pyramid respectively, and the connecting shafts (30) are located at the central shafts of the regular triangular pyramids; the first motor is connected with the connecting shaft (30) and drives the three grinding rollers to rotate at a constant speed by taking the connecting shaft (30) as a center; alternatively, the first and second electrodes may be,

the grinding roller (10) comprises two cylindrical grinding rollers and a conveying belt (31) wrapping the two grinding rollers; the first motor drives the two grinding rollers to rotate at a constant speed, and the two grinding rollers drive the conveying belt (31) to rotate at a constant speed.

In a possible implementation manner, in the abrasion resistance tester for the continuous organic fibers, provided by the invention, the second rail (25) is provided with four second positioning clamping grooves (25a, 25b, 25c, 25d) from top to bottom; when the grinding roller (10) is positioned in the first second positioning clamping groove (25a), an included angle formed by the grinding roller (10) and the first tension bar (5) and the second tension bar (6) is 60 degrees when the grinding roller (10) is in a static state; when the grinding roller (10) is positioned in the second positioning clamping groove (25b), an included angle formed by the grinding roller (10) and the first tension bar (5) and the second tension bar (6) is 90 degrees when the grinding roller is in a static state; when the grinding roller (10) is positioned in a third second positioning clamping groove (25c), an included angle formed by the grinding roller (10) and the first tension bar (5) and the second tension bar (6) is 120 degrees when the grinding roller (10) is in a static state;

when the grinding roller (10) reciprocates on the slide rail (7), the grinding roller (10) is positioned in a third second positioning clamping groove (25 c).

In a possible implementation manner, the abrasion resistance tester for continuous organic fibers provided by the invention further comprises: an optical test system (32);

a third rail (33) is arranged on the grinding roller bracket (9), a plurality of third positioning clamping grooves which correspond to the second positioning clamping grooves one to one are arranged on the third rail (33), each third positioning clamping groove is positioned above the corresponding second positioning clamping groove, and the optical test system (32) slides on the third rail (33) and is positioned in the third positioning clamping groove;

the optical test system (32) is used for detecting the broadening and the hairiness amount of the organic fibers.

In a possible implementation manner, the abrasion resistance tester for continuous organic fibers provided by the invention further comprises: a mechanical testing system (34) and a display screen (35); wherein the content of the first and second substances,

the mechanical testing system (34) is positioned below the hook row (2), is fixedly connected with the hook row (2), and is used for detecting the tension of the organic fibers;

the display screen (35) is fixed on the back plate (19) of the L-shaped support (1) and used for displaying the tension measured by the mechanical testing system (34) in real time.

In a possible implementation manner, in the abrasion resistance tester for continuous organic fibers provided by the invention, the surfaces of the first yarn combing rod (3), the second yarn combing rod (4), the first tension rod (5) and the second tension rod (6) are respectively provided with a plurality of second grooves (36) which are in one-to-one correspondence with the hooks on the hook row (2);

the first grooves (28) and the second grooves (36) arranged on the surface of the grinding roller (10) correspond to each other one by one.

In a possible implementation manner, in the abrasion resistance tester for the continuous organic fibers, provided by the invention, a plurality of connecting points of the crank connecting rod (11) and the disc (12) are provided, and the distance from each connecting point to the center of the circle is different.

In a possible implementation manner, the abrasion resistance tester for continuous organic fibers provided by the invention further comprises: a fiber collector (37) fixedly connected with the grinding roller bracket (9);

the fiber collector (37) has an adsorption effect and is used for collecting the fallen organic fibers.

In a possible implementation manner, the abrasion resistance tester for continuous organic fibers provided by the invention further comprises: the graduated scale (38) is fixed on the edge of the bottom plate (26) of the L-shaped bracket (1) and is parallel to the back plate (19) of the L-shaped bracket (1);

the zero point scale of the graduated scale (38) is flush with the hook row (2) and is used for measuring the length of the organic fibers during twisting.

According to the abrasion resistance tester for the continuous organic fibers, the grinding rollers with various structures are arranged and can be freely replaced, so that not only can a proper grinding roller be selected for testing according to the types of the organic fibers, but also the types of the organic fibers can be expanded for testing, and the use limitation of the abrasion resistance tester is reduced; the grinding roller, the tension rod and the yarn combing rod are arranged to be adjustable in position up and down, so that the selectivity of test conditions can be increased, two modes of testing and twisting can be realized, twisting is directly completed on the wear resistance tester, the sample can be prevented from being worn in the transfer process, the problem that the wear resistance of twisted fibers is difficult to test is solved, and the application range of the wear resistance tester is expanded; the wear resistance of twisted/untwisted fibers under the action of different tensions can be tested by arranging the U-shaped hook code for adjusting the fiber tension and the baffle for preventing the fibers from driving the U-shaped hook code to rotate after twisting so as to influence the fiber twist; the surfaces of the first yarn combing rod, the second yarn combing rod, the first tension rod and the second tension rod are respectively provided with a plurality of second grooves which are in one-to-one correspondence with the hooks on the hook row, so that a plurality of groups of samples can be tested simultaneously, a plurality of organic fibers are tested in the corresponding second grooves, the organic fibers are not interfered with each other, and the service efficiency of the wear resistance tester can be improved; by arranging the mechanical testing system for detecting the fiber tension and the optical testing system for detecting the fiber broadening and the hairiness amount, a more comprehensive, advanced and efficient testing means is provided for testing and researching the wear resistance of the organic fiber. The wear resistance tester for the continuous organic fibers provided by the invention has the advantages of simple structure, convenience in operation and high testing efficiency, can test the wear resistance of the organic fibers and different grinding materials under the action of different friction speeds and different tensions, can also change the testing conditions such as friction distance, friction angle, grinding roller types and the like for testing, can also twist and test the organic fibers, and can more accurately represent the wear condition of the organic fibers under the twisting condition; the abrasion resistance can be evaluated by the number of times of reciprocating motion of the grinding roller, the abrasion resistance can also be evaluated by the number of turns of rotation (rolling abrasion mode) of the grinding roller, and the tension, the widening, the hairiness amount and the like of the organic fibers can be represented, so that the abrasion resistance of various organic fibers in the production process and the practical application can be simulated and evaluated more comprehensively and efficiently.

Drawings

FIG. 1 is a schematic perspective view of a wear resistance tester for continuous organic fibers according to the present invention;

FIG. 2 is a schematic view of five first tracks on a back plate of an L-shaped bracket in the abrasion resistance tester for continuous organic fibers according to the present invention;

FIG. 3 is a schematic view of a second rail and a third rail on a grinding roller support in a continuous organic fiber abrasion resistance tester provided in the present invention;

FIG. 4 is a schematic perspective view illustrating a twisting process of an abrasion resistance tester for continuous organic fibers according to the present invention;

FIG. 5 is a schematic structural diagram of a grinding roller of the abrasion resistance tester for continuous organic fibers according to the present invention;

FIG. 6 is a second schematic structural view of a grinding roller of the abrasion resistance tester for continuous organic fibers according to the present invention;

FIG. 7 is a third schematic structural view of a grinding roller of the abrasion resistance tester for continuous organic fibers according to the present invention;

FIG. 8 is a fourth schematic view of the structure of a grinding roller in the abrasion resistance tester for continuous organic fibers according to the present invention.

Description of the drawings: 1. an L-shaped bracket; 2. a hook row; 3. a first yarn combing bar; 4. a second yarn combing bar; 5. a first tension bar; 6. a second tension bar; 7. a slide rail; 8. a slider; 9. a grinding roller bracket; 10. grinding the roller; 11. a crank connecting rod; 12. a disc; 13. a second motor; 14. a first counter; 15. a second counter; 16. u-shaped hook codes; 17. a baffle plate; 18. a twister; 19. a back plate of the L-shaped bracket; 20-24, five first tracks; 25. a second track; 26. a bottom plate of the L-shaped bracket; 27. a bearing; 28. a first groove; 29. a brush; 30. a connecting shaft; 31. a conveyor belt; 32. an optical test system; 33. a third track; 34. a mechanical testing system; 35. a display screen; 36. a second groove; 37. a fiber collector; 38. a graduated scale.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only illustrative and are not intended to limit the present invention.

The invention provides a wear resistance tester of continuous organic fibers, as shown in figure 1, comprising: the yarn feeding device comprises an L-shaped support 1, a hook row 2 consisting of a plurality of hooks in parallel, a first yarn combing rod 3, a second yarn combing rod 4, a first tension rod 5, a second tension rod 6, a sliding rail 7, a sliding block 8, a grinding roller support 9, a grinding roller 10, a crank connecting rod 11, a disc 12, a first motor, a second motor 13, a first counter 14, a second counter 15, a U-shaped hook code 16, a baffle 17 and a twister 18; wherein the content of the first and second substances,

as shown in fig. 1 and 2, five first tracks 20-24 arranged along the horizontal direction are arranged on a back plate 19 of the L-shaped bracket 1, and correspond to the hook row 2, the first yarn combing rod 3, the first tension rod 5, the second tension rod 6 and the second yarn combing rod 4 in sequence, the upper end and the lower end of each first track are respectively provided with a first positioning clamping groove, and the hook row 2, the first yarn combing rod 3, the first tension rod 5, the second tension rod 6 and the second yarn combing rod 4 respectively slide on the corresponding first tracks and are positioned in the first positioning clamping grooves, so that the upper and lower positions of the hook row 2, the first yarn combing rod 3, the first tension rod 5, the second tension rod 6 and the second yarn combing rod 4 are adjustable; as shown in fig. 2, the first positioning slot 20a at the lower end of the first rail 20 corresponding to the hook row 2 is lower than the first positioning slots 21a, 22a, 23a, and 24a at the lower ends of the other four first rails 21 to 24, and the first positioning slot 20b at the upper end of the first rail 20 corresponding to the hook row 2 is higher than the first positioning slots 21a, 22a, 23a, and 24a at the lower ends of the other four first rails 21 to 24 and lower than the first positioning slots 21b, 22b, 23b, and 24b at the upper ends of the other four first rails 21 to 24; the four first tracks 21-24 correspond to the first yarn combing rod 3, the first tension rod 5, the second tension rod 6 and the second yarn combing rod 4, the first positioning clamping grooves 21a, 22a, 23a and 24a at the lower end are as high as one another, and the first positioning clamping grooves 21b, 22b, 23b and 24b at the upper end are as high as one another;

as shown in fig. 1 and 3, a second rail 25 is provided on the grinding roller bracket 9, a plurality of second positioning clamping grooves are provided on the second rail 25, fig. 3 illustrates that four second positioning clamping grooves 25a, 25b, 25c, 25d are provided on the second rail 25, the grinding roller 10 slides on the second rail 25 and is positioned in the second positioning clamping grooves through a bearing, and fig. 1 illustrates that the grinding roller 10 is positioned in the second positioning clamping grooves 25c, so that the upper and lower positions of the grinding roller 10 are adjustable, and during testing, the upper and lower positions of the grinding roller can be adjusted according to the testing requirements to control the friction angle; the grinding roller 10 is positioned in the second positioning clamping groove 25c through a bearing, namely the grinding roller 10 can rotate in the second positioning clamping groove 25c, the friction type of the organic fibers on the grinding roller 10 is rolling friction, the rotation times of the grinding roller 10 when the organic fibers are broken are used as evaluation indexes of the wear resistance of the organic fibers, and the larger the rotation times when the organic fibers are broken, the better the wear resistance is; the second positioning clamping groove (25 d shown in fig. 3) at the lowest end of the second rail 25 is lower than the first positioning clamping groove 20b at the upper end of the first rail 20 corresponding to the hook row 2, and the rest of the second positioning clamping grooves (25a, 25b, 25c shown in fig. 3) on the second rail 25 are higher than the first positioning clamping grooves 22a, 23a at the lower ends of the first rails 22, 23 corresponding to the first tension bar 5 and the second tension bar 6;

the arrangement of the first positioning clamping groove and the second positioning clamping groove can ensure that the organic fibers are not contacted with the first yarn combing rod 3, the first tension rod 5, the second tension rod 6, the second yarn combing rod 4 and the grinding roller 10 to influence the tension of the organic fibers during twisting, and in order to avoid the influence of the organic fibers on the tension of the organic fibers due to the fact that the organic fibers are not contacted with the baffle during twisting, the top end of the baffle 17 is required to be lower than the first positioning clamping groove 20b at the upper end of the first rail 20 corresponding to the hook row 2; the grinding roller 10, the first yarn combing rod 3, the first tension rod 5, the second tension rod 6 and the second yarn combing rod 4 are arranged to be adjustable in vertical position, so that the selectivity of test conditions can be increased, two modes of testing and twisting can be realized, twisting is directly completed on a wear resistance tester, abrasion of a sample in a transfer process can be avoided, the problem that the wear resistance of twisted fibers is difficult to test is solved, and the application range of the wear resistance tester is expanded;

as shown in fig. 1, the slide rail 7 is fixed on the bottom plate 26 of the L-shaped bracket 1, and the slide rail 7 is parallel to the back plate 19 of the L-shaped bracket 1; the slide block 8 is connected with the slide rail 7 in a sliding way, and the grinding roller bracket 9 is fixed on the slide block 8; one end of the crank connecting rod 11 is fixedly connected with the sliding block 8, and the other end is connected with the disc 12 through a bearing 27; the disc 12 is connected with a bottom plate 26 of the L-shaped bracket 1 at the circle center through a bearing 27; the first motor is connected with the disc 12 and used for driving the disc 12 to do uniform-speed circular motion, the disc 12 drives the crank connecting rod 11 to do reciprocating motion, the crank connecting rod 11 drives the sliding block 8, the grinding roller support 9 and the grinding roller 10 to do reciprocating motion on the sliding rail 7, and the first motor controls the rotating speed of the disc 12 so as to control the reciprocating motion speed of the sliding block 8, the grinding roller support 9 and the grinding roller 10 on the sliding rail 7; the disc 12 rotates for one circle, the sliding block 8, the grinding roller support 9 and the grinding roller 10 reciprocate once on the sliding rail 7, the moving distance of the grinding roller 10 in reciprocating motion (namely the distance of the disc 12 rotating for half a circle to drive the grinding roller 10 to move) is the friction distance of the grinding roller 10 on the organic fibers, the friction type of the organic fibers on the grinding roller 10 is sliding friction, the number of reciprocating motion times (namely the number of rotation turns of the disc) when the organic fibers are broken is used as an evaluation index of the wear resistance of the organic fibers, and the larger the number of reciprocating motion times (namely the number of rotation turns of the disc) is, the better the wear resistance is; when the grinding roller 10 is in a static state (namely the disc 12 is in a static state, namely the disc 12 starts to rotate at the initial state), the distance between the grinding roller 10 and the first tension bar 5 and the distance between the grinding roller 10 and the second tension bar 6 in the horizontal direction are equal, and the reciprocating motion track of the grinding roller is positioned between the first tension bar 5 and the second tension bar 6; a first counter 14 for counting and displaying the number of rotations (i.e., the number of reciprocations) of the disc 12 before the breakage of the organic fiber, specifically, a magnet may be fixed to a side surface of the disc 12, the first counter counting by recognizing the magnet; the second motor 13 is connected with the grinding roller 10 and is used for driving the grinding roller 10 to rotate at a constant speed, and the rotating speed of the grinding roller 10 is controlled by the second motor 13; the second counter 15 is connected with the second motor 13 and is used for counting and displaying the number of turns of the grinding roller 10 driven by the second motor 13;

one end of the organic fiber is connected with the hooks in the hook row 2, and the other end of the organic fiber is connected with a U-shaped hook code 16;

in the test, as shown in fig. 1, the hook row 2, the first tension bar 5 and the second tension bar 6 are respectively located in the first positioning slots 20a, 22a and 23a at the lower end of the corresponding first rails 20, 22 and 23, the first combing bar 3 and the second combing bar 4 are respectively located in the first positioning slots 21b and 24b at the upper end of the corresponding first rails 21 and 24, the grinding roller 10 is located in any one of the second positioning slots (25a or 25b or 25c shown in fig. 3) except for the lowermost second positioning slot (25 d shown in fig. 3) for winding the organic fiber into a wave shape and passing over the grinding roller 10, specifically, one end of the organic fiber is fixed on the hook row 2, passes through the upper end of the first combing bar 3 to the lower end of the first tension bar 5, then passes through the upper end of the grinding roller 10 (the surface of which is wrapped with a specific abrasive, such as sandpaper) to the lower end of the second tension bar 6, after winding to the upper end of the second yarn combing rod 4, the other end of the organic fiber is connected with a U-shaped hook code 16; the U-shaped hook code 16 spans the baffle 17, and the top end of the baffle 17 is lower than the top end of the U-shaped hook code 16, so that the U-shaped hook code 16 naturally droops and the twisted organic fibers are prevented from driving the U-shaped hook code 16 to rotate to cause the twist change of the organic fibers; the upper and lower positions of the baffle 17 can be adjusted in a lifting way so as to ensure that the top end of the baffle 17 is lower than the top end of the U-shaped hook code 16; when the abrasion resistance of the organic fiber in the non-twisted state is tested, the baffle 17 can be omitted; the U-shaped hook code 16 is used for placing a weight to apply tension to the organic fiber, and the tension is controlled by adjusting the weight of the weight; the wear resistance test is carried out by rubbing the organic fibers with the grinding roller 10 under the reciprocating motion and/or rotation (i.e., sliding friction and/or rolling friction) of the grinding roller 10; the wear resistance of twisted/untwisted fibers under the action of different tensions can be tested by arranging the U-shaped hook code for adjusting the fiber tension and the baffle for preventing the fibers from driving the U-shaped hook code to rotate after twisting so as to influence the fiber twist;

for the abrasion resistance test during the twisting of the organic fiber, the twisting can be directly carried out on an abrasion resistance tester; during twisting, as shown in fig. 4, the hook row 2, the first tension bar 5 and the second tension bar 6 are respectively located in first positioning slots 20b, 22b and 23b at the upper ends of the corresponding first rails 20, 22 and 23, the first yarn combing bar 3 and the second yarn combing bar 4 are respectively located in first positioning slots 21a and 24a at the lower ends of the corresponding first rails 21 and 24, the grinding roller 10 is located in a second positioning slot (25 d shown in fig. 3) at the lowest end, one end of the organic fiber is hung on the hook, the other end is tied on the U-shaped hook code 16, the U-shaped hook code 16 is fixedly connected with the twister 18, and the organic fiber is twisted according to the test requirement; according to the test requirement, the twisting of the organic fibers in a tension-free horizontal straightening state is ensured by adjusting the position of the twister 18; after twisting is finished, the U-shaped hook code 16 is taken down from the twister 18, and the U-shaped hook on the U-shaped hook code 16 is spanned on the baffle 17 to start testing;

by arranging the grinding rollers with various structures, the grinding rollers can be freely replaced, so that not only can a proper grinding roller be selected for testing according to the type of the organic fibers, but also the type of the testable organic fibers can be enlarged, and the use limitation of the wear resistance tester can be reduced; four configurations of grinding rolls are described below:

first, as shown in fig. 1 and 5, the grinding roller 10 is a cylindrical grinding roller, and the surface of the grinding roller 10 is wrapped with a specific abrasive during testing; as shown in FIG. 1, the surface of the grinding roll 10 is smooth; alternatively, as shown in FIG. 5, the surface of the grinding roll 10 is provided with first grooves 28 for limiting the area of friction of the organic fibers with the grinding roll 10; the shape of the first groove 28 may be a semicircle, or the shape of the first groove 28 may also be a V-shape, or the shape of the first groove 28 may also be a U-shape, which is not limited herein; during testing, the organic fiber bypasses from the upper end of the cylindrical grinding roller, and the grinding material wrapped on the surface of the grinding roller is used for performing friction testing on the organic fiber;

secondly, as shown in fig. 6, the grinding roller 10 is a cylindrical grinding roller with a smooth surface, and the surface of the grinding roller 10 is wrapped with a specific abrasive during testing; the abrasion resistance tester for the continuous organic fibers further comprises a hairbrush 29 which is positioned below the grinding roller 10 and is in contact with the grinding roller 10, and a third motor which is connected with the hairbrush 29 and is used for driving the hairbrush 29 to rotate; wherein, during the test, the grinding roller 10 and the brush 29 rotate in opposite directions; or, the grinding roller 10 and the brush 29 both rotate in the same direction and at different speeds; or, the grinding roller 10 is static, and the brush 29 rotates, and the three rotation conditions can realize that the brush is used for brushing off organic fibers accumulated on the surface of the grinding materials (such as sand paper) on the grinding roller, so that the friction effect of the grinding materials on the grinding roller is ensured; when the organic fibers are accumulated on the surface of the brush, the brush can be manually rotated to enable the clean brush to be in contact with the grinding materials on the grinding roller; during testing, the organic fiber bypasses from the upper end of the cylindrical grinding roller, and the grinding material wrapped on the surface of the grinding roller is used for performing friction testing on the organic fiber;

thirdly, as shown in fig. 7, the grinding roller 10 includes three cylindrical grinding rollers with smooth surfaces, and the surfaces of the three grinding rollers are respectively wrapped with specific abrasives during testing; one end of each grinding roller is connected with the connecting shaft 30, the three grinding rollers are located at three edges of the regular triangular pyramid, and the connecting shaft 30 is located at the central shaft of the regular triangular pyramid; the first motor is connected with the connecting shaft 30 and drives the three grinding rollers to rotate at a constant speed by taking the connecting shaft 30 as a center; during testing, the organic fibers bypass from the upper end of the whole body consisting of the three grinding rollers, and the grinding materials wrapped on the surfaces of the three grinding rollers perform friction testing on the organic fibers in turn;

fourthly, as shown in fig. 8, the grinding roller 10 includes two cylindrical grinding rollers and a conveyor belt 31 wrapping the two grinding rollers, and the surface of the conveyor belt 31 is covered with an abrasive material during testing; the first motor drives the two grinding rollers to rotate at a constant speed, the two grinding rollers drive the conveyor belt 31 to rotate at a constant speed, and the rotating speed of the conveyor belt 31 can be adjusted through the first motor; in the test, the organic fiber is wound around the upper end of the conveyor belt 31, and the abrasive material wrapped on the surface of the conveyor belt 31 performs a friction test on the organic fiber.

Of course, in the above abrasion resistance tester for continuous organic fibers provided by the present invention, the structure of the grinding roller is not limited to the above four types, and for example, the grinding roller may be replaced by a grinding knife or a grinding hook, which is not limited herein.

In the above abrasion resistance tester for continuous organic fibers according to the present invention, as shown in fig. 1 and 3, the second rail 25 has four second positioning slots 25a, 25b, 25c, 25d from top to bottom; by designing the distance of the grinding roller 10 from the first tension bar 5 and the second tension bar 6 in the horizontal direction and the positions of the four second positioning clamping grooves 25a, 25b, 25c and 25d, respectively, the following conditions can be realized: when the grinding roller 10 is positioned in the first second positioning clamping groove 25a, an included angle formed by the grinding roller 10 and the first tension bar 5 and the second tension bar 6 is 60 degrees when the grinding roller is in a static state; when the grinding roller 10 is positioned in the second positioning clamping groove 25b, an included angle formed by the grinding roller 10 and the first tension bar 5 and the second tension bar 6 is 90 degrees when the grinding roller is in a static state; when the grinding roller 10 is positioned in the third second positioning clamping groove 25c, the grinding roller 10 forms an included angle of 120 degrees with the first tension bar 5 and the second tension bar 6 when in a static state, so that the friction angle is controlled by adjusting the up-down position of the grinding roller. When the grinding roller 10 reciprocates on the sliding rail (7) (i.e. in a sliding wear mode), preferably, the grinding roller (10) is adjusted into a third second positioning clamping groove 25c, an included angle formed by the grinding roller 10 and the first tension bar 5 and the second tension bar 6 is 120 degrees, in the reciprocating process of the grinding roller 10, the fiber length between the first tension bar 5 and the second tension bar 6 is basically constant, the U-shaped hook 16 keeps still and cannot move up and down along with the reciprocating motion of the grinding roller 10, and the tension borne by the fibers during testing can be better controlled; if the grinding roller 10 selects the second positioning clamping groove at other positions, the U-shaped hook code 16 may move up and down during the test, so that the tension applied to the fiber during the test is difficult to keep constant.

In practical application, the abrasion resistance tester for the continuous organic fiber provided by the present invention, as shown in fig. 1, may further include: an optical test system 32; as shown in fig. 3, a third rail 33 is disposed on the grinding roller bracket 9, a plurality of third positioning clamping grooves corresponding to the second positioning clamping grooves one to one are disposed on the third rail 33, and fig. 1 illustrates that four second positioning clamping grooves 25a, 25b, 25c, and 25d are disposed on the second rail 25, and four third positioning clamping grooves 33a, 33b, 33c, and 33d are disposed on the third rail 33; each third locator card slot is located above the corresponding second locator card slot, as shown in fig. 3, the third locator card slot 33a is located above the second locator card slot 25a, the third locator card slot 33b is located above the second locator card slot 25b, the third locator card slot 33c is located above the second locator card slot 25c, and the third locator card slot 33d is located above the second locator card slot 25 d; the optical test system 32 slides on the third rail 33 and is positioned in the third positioning card slot; and an optical test system 32 for detecting the broadening and the amount of hairiness of the organic fibers.

In practical application, the abrasion resistance tester for the continuous organic fiber provided by the present invention, as shown in fig. 1, may further include: a mechanical testing system 34 and a display screen 35; the mechanical testing system 34 is positioned below the hook row 2, fixedly connected with the hook row 2 and used for detecting the tension of the organic fibers; and the display screen 35 is fixed on the back plate 19 of the L-shaped bracket 1 and is used for displaying the tension measured by the mechanical testing system 34 in real time.

In specific implementation, in the abrasion resistance tester for continuous organic fibers provided by the invention, as shown in fig. 1, a plurality of second grooves 36 corresponding to the hooks in the hook row 2 one by one are respectively arranged on the surfaces of the first yarn combing rod 3, the second yarn combing rod 4, the first tension rod 5 and the second tension rod 6; the first grooves 28 and the second grooves 36 arranged on the surface of the grinding roller 10 correspond one to one; therefore, a plurality of groups of samples can be tested simultaneously, a plurality of organic fibers are tested in the corresponding first groove 28 and the corresponding second groove 36, the organic fibers are not interfered with each other, and the service efficiency of the wear resistance tester can be improved. For example, the hook row 2 is composed of 10 hooks, 10 first grooves are formed on the surface of the grinding

roller

10, and 10 second grooves are formed on the surfaces of the first yarn combing rod 3, the second yarn combing rod 4, the first tension rod 5 and the second tension rod 6 respectively, so that the test of 10 groups of samples can be simultaneously carried out.

In the above apparatus for testing the abrasion resistance of continuous organic fibers according to the present invention, as shown in fig. 1, a plurality of connecting points are provided between the crank rod 11 and the disc 12, and the distances from the connecting points to the center of the circle are different. By adjusting the position of the connecting point of the crank connecting rod 11 and the disc 12, the moving distance of the reciprocating motion of the sliding block 8, the grinding roller bracket 9 and the grinding roller 10 on the sliding rail 7 can be adjusted, namely the friction distance of the grinding roller 10 on the organic fibers is adjusted. For example, when the outermost connection point on the disc 12 is selected, the grinding roller 10 may reciprocate by a maximum movement distance, i.e., a friction distance on the organic fibers, of 5cm, and when the connection point is at the center of the disc, the grinding roller 10 does not reciprocate.

In practical application, the abrasion resistance tester for the continuous organic fiber provided by the present invention, as shown in fig. 1, may further include: a fiber collector 37 fixedly connected to the grinding roller holder 9; and a fiber collector 37 having an adsorption function for collecting the dropped organic fibers. The wear mechanism of the organic fibers can be analyzed by weighing the collected organic fibers, observing the shape and size thereof by using a microscope, and observing the morphology thereof by using a scanning electron microscope.

In practical application, the abrasion resistance tester for the continuous organic fiber provided by the present invention, as shown in fig. 1, may further include: a graduated scale 38 fixed on the edge of the bottom plate 26 of the L-shaped bracket 1 and parallel to the back plate 19 of the L-shaped bracket 1; the zero point scale of scale 38 is arranged 2 parallel and level with the couple, like this, when twisting, hangs organic fibre's one end on the couple, utilizes the scale can directly measure the organic fibre of certain length, later, is on U type hook sign indicating number with organic fibre's the other end system, and U type hook sign indicating number is fixed on the twister, twists to organic fibre according to the test requirement.

In specific implementation, when the continuous organic fiber abrasion resistance tester provided by the invention is used for testing, the abrasive is fixed on the surface of the grinding roller, each group of organic fiber samples are wound on the corresponding track of the abrasion resistance tester, the first motor is started after the rotation speed of the disc is set, the second motor is started after the rotation speed of the grinding roller is set, and the organic fibers are repeatedly rubbed under the reciprocating motion and/or rotation of the grinding roller. When the organic fiber is broken, the U-shaped hook code falls onto the baffle, and the first counter and the second counter respectively and automatically record a first group of data; when all the organic fibers are broken, the first counter and the second counter stop counting. During the test, the grinding roller can rotate, or the grinding roller can also reciprocate, or the grinding roller can also rotate and reciprocate simultaneously, and the rotating speed and the reciprocating speed can be adjusted, so that the organic fibers are subjected to sliding friction wear (grinding roller reciprocating motion) and/or rolling friction wear (grinding roller rotating) under the action of the grinding roller, the number of times of reciprocating motion of the grinding roller and/or the number of turns of rotation of the grinding roller when the organic fibers are broken are used as evaluation indexes of the wear resistance of the organic fibers, and the larger the number of times of reciprocating motion of the grinding roller and/or the number of turns of rotation of the grinding roller when the organic fibers are broken is, the better the wear resistance of the organic fibers is.

In specific implementation, the abrasion resistance tester for the continuous organic fibers provided by the invention is provided with a first counter for detecting the reciprocating times of the grinding roller when the organic fibers are broken, a second counter for detecting the rotating times of the grinding roller when the organic fibers are broken, a mechanical testing system for detecting the tension of the organic fibers, an optical testing system for detecting the broadening and the hairiness of the organic fibers and a fiber collector for collecting the fallen organic fibers, and can comprehensively analyze the reciprocating times of the grinding roller and/or the rotating times of the grinding roller when the grinding is broken, the tension of the organic fibers, the broadening and the hairiness of the organic fibers and various parameters of the fallen organic fibers so as to more comprehensively represent the abrasion resistance of an organic fiber sample. The mechanical testing system is positioned below the hook row, can detect the tension borne by the organic fibers in real time, and the testing result is displayed on a display screen of the L-shaped support back plate. An optical testing system used for detecting the broadening of the organic fibers and the amount of hairiness is arranged above the grinding roller, positioning clamping grooves used for positioning the grinding roller and the optical fiber testing system are arranged on the grinding roller support, the position of the optical testing system can be adjusted up and down according to the position of the grinding roller so as to be convenient to test, and the broadening and the amount of hairiness of different organic fibers under the same testing condition are compared to represent the wear resistance of the organic fibers. The fiber collector with a certain adsorption effect is arranged below the grinding roller and is connected with the grinding roller bracket, the fiber collector reciprocates along with the grinding roller during testing, and the dropped organic fibers are tested and analyzed after testing is finished, for example, the mass is weighed, the shape and the size are observed by using a microscope, and the shape is observed by using a scanning electron microscope to represent the abrasion condition of the fibers.

The following two specific examples are provided to analyze the test results of the abrasion resistance tester for the above continuous organic fiber provided by the present invention. The abrasion resistance tester for the continuous organic fibers provided by the invention is used for testing the abrasion resistance of the organic fibers under two conditions of no twisting and twisting.

Example 1: without twisting

The test samples are two kinds of PTFE fibers, the linear density is about 450dtex, the abrasive on the grinding roller is 500-mesh waterproof abrasive paper, the grinding roller is a cylindrical grinding roller with the diameter of 2cm and smooth surface, the grinding roller does not rotate and only does reciprocating motion, the friction speed is 60 times/min, the friction distance is 5cm, the friction angle is 120 degrees, the mass of a weight on the U-shaped hook code is 45g, and the fibers are not twisted. 500-mesh waterproof abrasive paper is wrapped on the surface of a grinding roller, sample fibers are wound on a wear resistance tester according to the figure 1, and 5 times of tests are carried out according to the parameters. Test conclusion as shown in table 1, it can be seen from table 1 that the number of reciprocations of the grinding roller at the time of breakage of the # 1 PTFE fiber was larger than that of the grinding roller at the time of breakage of the # 2 PTFE fiber, indicating that the non-twist abrasion resistance of the # 1 PTFE fiber was superior to that of the # 2 PTFE fiber.

TABLE 1

Kind of fiber	No. 1 PTFE fiber	2# PTFE fiber
			1	509	421
2	493	389
			3	479	367
4	526	357
			5	469	440
Mean value of	492	395

Example 2:

the test sample is 1# PTFE fiber, the linear density is about 450dtex, the abrasive on the grinding roller is 500-mesh waterproof abrasive paper, the grinding roller is a cylindrical grinding roller with the diameter of 2cm and smooth surface, the grinding roller does not rotate and only does reciprocating motion, the friction speed is 60 times/min, the friction distance is 5cm, the friction angle is 120 degrees, the mass of a weight on the U-shaped hook code is 45g, the sample fiber is twisted according to the scheme shown in figure 3, and the fiber twist degrees are 0 twist, 50 twist and 100 twist respectively. 500-mesh waterproof abrasive paper is wrapped on the surface of a grinding roller, sample fibers are wound on a wear resistance tester according to the figure 1, and 5 times of tests are carried out according to the parameters. As shown in Table 2, it can be seen from Table 2 that the number of reciprocations of the grinding roller at breakage of the 1# PTFE fiber without twisting is larger than that at breakage of the grinding roller at twist of 50, and the number of reciprocations of the grinding roller at breakage of the 1# PTFE fiber at twist of 50 is larger than that at breakage of the grinding roller at twist of 100, indicating that the 1# PTFE fiber is more easily broken at twisting and the greater the twist, the poorer the abrasion resistance.

TABLE 2

Fiber twist/twist	0	50	100
				1	509	171	23
2	493	247	27
				3	479	168	29
4	526	225	27
				5	469	155	40
Mean value of	492	193	29

According to the abrasion resistance tester for the continuous organic fibers, the grinding rollers with various structures are arranged and can be freely replaced, so that not only can a proper grinding roller be selected for testing according to the types of the organic fibers, but also the types of the organic fibers can be expanded for testing, and the use limitation of the abrasion resistance tester is reduced; the grinding roller, the tension rod and the yarn combing rod are arranged to be adjustable in position up and down, so that the selectivity of test conditions can be increased, two modes of testing and twisting can be realized, twisting is directly completed on the wear resistance tester, the sample can be prevented from being worn in the transfer process, the problem that the wear resistance of twisted fibers is difficult to test is solved, and the application range of the wear resistance tester is expanded; the wear resistance of twisted/untwisted fibers under the action of different tensions can be tested by arranging the U-shaped hook code for adjusting the fiber tension and the baffle for preventing the fibers from driving the U-shaped hook code to rotate after twisting so as to influence the fiber twist; the surfaces of the first yarn combing rod, the second yarn combing rod, the first tension rod and the second tension rod are respectively provided with a plurality of second grooves which are in one-to-one correspondence with the hooks on the hook row, so that a plurality of groups of samples can be tested simultaneously, a plurality of organic fibers are tested in the corresponding second grooves, the organic fibers are not interfered with each other, and the service efficiency of the wear resistance tester can be improved; by arranging the mechanical testing system for detecting the fiber tension and the optical testing system for detecting the fiber broadening and the hairiness amount, a more comprehensive, advanced and efficient testing means is provided for testing and researching the wear resistance of the organic fiber. The wear resistance tester for the continuous organic fibers provided by the invention has the advantages of simple structure, convenience in operation and high testing efficiency, can test the wear resistance of the organic fibers and different grinding materials under the action of different friction speeds and different tensions, can also change the testing conditions such as friction distance, friction angle, grinding roller types and the like for testing, can also twist and test the organic fibers, and can more accurately represent the wear condition of the organic fibers under the twisting condition; the abrasion resistance can be evaluated by the number of times of reciprocating motion of the grinding roller, the abrasion resistance can also be evaluated by the number of turns of rotation (rolling friction mode) of the grinding roller, and the tension, the widening, the hairiness amount and the like of the organic fibers can be represented, so that the abrasion resistance of various organic fibers in the production process and the practical application can be simulated and evaluated more comprehensively and efficiently.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An abrasion resistance tester for continuous organic fibers, comprising: the yarn combing machine comprises an L-shaped support (1), a hook row (2) formed by a plurality of hooks side by side, a first yarn combing rod (3), a second yarn combing rod (4), a first tension rod (5), a second tension rod (6), a sliding rail (7), a sliding block (8), a grinding roller support (9), a grinding roller (10), a crank connecting rod (11), a disc (12), a first motor, a second motor (13), a first counter (14), a second counter (15), a U-shaped hook code (16), a baffle (17) and a twister (18); wherein the content of the first and second substances,

five first tracks A, B, C, D, E (20-24) which are arranged along the horizontal direction are arranged on a back plate (19) of the L-shaped bracket (1) and correspond to the hook row (2), the first yarn combing rod (3), the first tension rod (5), the second tension rod (6) and the second yarn combing rod (4) in sequence, the upper end and the lower end of each first track are respectively provided with a first positioning clamping groove, and the hook row (2), the first yarn combing rod (3), the first tension rod (5), the second tension rod (6) and the second yarn combing rod (4) respectively slide on the corresponding first tracks and are positioned in the first positioning clamping grooves; the first positioning clamping grooves 1A (20a) at the lower ends of the first rails a (20) corresponding to the hook row (2) are lower than the first positioning clamping grooves 1B, 1C, 1D, 1E (21A, 22A, 23a, 24a) at the lower ends of the other four first rails B, C, D, E (21 to 24), and the first positioning clamping grooves 2A (20B) at the upper ends of the first rails a (20) corresponding to the hook row (2) are higher than the first positioning clamping grooves 1B, 1C, 1D, 1E (21A, 22A, 23a, 24a) at the lower ends of the other four first rails B, C, D, E (21 to 24) and lower than the first positioning clamping grooves 2B, 2C, 2D, 2E (21B, 22B, 23B, 24B) at the upper ends of the other four first rails B, C, D, E (21 to 24); the four first tracks B, C, D, E (21-24) corresponding to the first yarn combing rod (3), the first tension rod (5), the second tension rod (6) and the second yarn combing rod (4) have the same height as the first positioning clamping grooves 1B, 1C, 1D and 1E (21a, 22a, 23a and 24a) at the lower end, and the first positioning clamping grooves 2B, 2C, 2D and 2E (21B, 22B, 23B and 24B) at the upper end;

a second rail (25) is arranged on the grinding roller bracket (9), a plurality of second positioning clamping grooves are formed in the second rail (25), and the grinding roller (10) slides on the second rail (25) and is positioned in the second positioning clamping grooves through a bearing; the second positioning clamping groove at the lowest end on the second rail (25) is lower than the first positioning clamping groove 2A (20b) at the upper end of the first rail A (20) corresponding to the hook row (2), and the rest of the second positioning clamping grooves on the second rail (25) are higher than the first positioning clamping grooves 1C and 1D (22A and 23a) at the lower ends of the first rails C, D (22 and 23) corresponding to the first tension bar (5) and the second tension bar (6);

during testing, the hook row (2), the first tension bar (5) and the second tension bar (6) are respectively positioned in first positioning clamping grooves 1A, 1C and 1D (20a, 22a and 23a) at the lower ends of corresponding first rails A, C, D (20, 22 and 23), the first yarn combing bar (3) and the second yarn combing bar (4) are respectively positioned in first positioning clamping grooves 2B and 2E (21B and 24B) at the upper ends of corresponding first rails B, E (21 and 24), and the grinding roller (10) is positioned in any second positioning clamping groove except the second positioning clamping groove at the lowest end and is used for enabling organic fibers to be wound into a wave shape and to pass over the grinding roller (10); the U-shaped hook code (16) spans the baffle (17), the top end of the baffle (17) is lower than the top end of the U-shaped hook code (16), the U-shaped hook code (16) naturally sags and prevents twisted organic fibers from driving the U-shaped hook code (16) to rotate, and the U-shaped hook code (16) is used for placing weights to apply tension to the organic fibers; rubbing the organic fibers with the grinding roller (10) under the reciprocating motion and/or rotation of the grinding roller (10) to carry out a wear resistance test;

during twisting, the hook row (2), the first tension rod (5) and the second tension rod (6) are respectively positioned in first positioning clamping grooves 2A, 2C and 2D (20B, 22B and 23B) at the upper ends of corresponding first rails A, C, D (20, 22 and 23), the first yarn combing rod (3) and the second yarn combing rod (4) are respectively positioned in first positioning clamping grooves 1B and 1E (21a and 24a) at the lower ends of corresponding first rails B, E (21 and 24), the grinding roller (10) is positioned in a second positioning clamping groove at the lowermost end, the U-shaped hook code (16) is fixedly connected with the twister (18), and the organic fibers are twisted in a tension-free horizontal straightening state by adjusting the position of the twister (18);

2. The abrasion resistance tester for continuous organic fibers according to claim 1, wherein the second rail (25) is provided with four second positioning clamping grooves (25a, 25b, 25c, 25d) from top to bottom; when the grinding roller (10) is positioned in the first second positioning clamping groove (25a), an included angle formed by the grinding roller (10) and the first tension bar (5) and the second tension bar (6) is 60 degrees when the grinding roller (10) is in a static state; when the grinding roller (10) is positioned in the second positioning clamping groove (25b), an included angle formed by the grinding roller (10) and the first tension bar (5) and the second tension bar (6) is 90 degrees when the grinding roller is in a static state; when the grinding roller (10) is positioned in a third second positioning clamping groove (25c), an included angle formed by the grinding roller (10) and the first tension bar (5) and the second tension bar (6) is 120 degrees when the grinding roller (10) is in a static state;

3. The abrasion resistance tester for continuous organic fibers according to claim 1, further comprising: an optical test system (32);

4. The abrasion resistance tester for continuous organic fibers according to claim 1, further comprising: a mechanical testing system (34) and a display screen (35); wherein the content of the first and second substances,

5. The abrasion resistance tester of continuous organic fibers according to claim 1, wherein the surfaces of the first combing bar (3), the second combing bar (4), the first tension bar (5) and the second tension bar (6) are respectively provided with a plurality of second grooves (36) corresponding to the hooks on the hook row (2) one by one;

6. The abrasion resistance tester for continuous organic fibers according to claim 1, wherein the crank link (11) is connected to the disc (12) at a plurality of points, each of which is located at a different distance from the center of the circle.

7. The abrasion resistance tester for continuous organic fibers according to claim 1, further comprising: a fiber collector (37) fixedly connected with the grinding roller bracket (9);

8. The abrasion resistance tester for continuous organic fibers according to any one of claims 1 to 7, further comprising: the graduated scale (38) is fixed on the edge of the bottom plate (26) of the L-shaped bracket (1) and is parallel to the back plate (19) of the L-shaped bracket (1);