CN119023941A - A chemical short fiber performance detection device and detection method thereof - Google Patents
A chemical short fiber performance detection device and detection method thereof Download PDFInfo
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Abstract
The invention discloses a chemical short fiber performance detection device and a detection method thereof, wherein the device comprises a fiber sampling system, a fiber carding system and a fiber testing system, the fiber sampling system is used for sampling tested fibers, the fiber carding system is used for carding the tested fibers, the fiber testing system is used for testing the performance of the fibers, the fiber sampling system comprises a sampling tube, a finishing card clothing is arranged at the circumference position of the residual side surface of the sampling tube, and the finishing card clothing comprises a finishing needle. According to the invention, by arranging the fiber sampling system which can hold the fibers and can finish the fibers, the fiber carding system with the flexible hairbrush, and the fiber testing system with the light emitting and receiving device and the image processing device, more stable and accurate sampling, carding and testing of the chemical fibers are realized, especially, the detection of the special doubling phenomenon in the chemical fibers is realized, and then, more stable and accurate testing of the chemical fiber performance is realized.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to a chemical short fiber performance detection device and a detection method thereof.
Background
Spinning is a process of twisting animal or vegetable fibers to form a continuous yarn with infinite stretch, so as to be suitable for weaving; the performance of the fiber used in spinning has important influence on the spinning processing process and the comprehensive performance of the yarn processed by the spinning processing process, and the like, so that the fiber performance is very important for the true and accurate test.
The performance of the fiber comprises fiber length, fiber distribution, fiber tensile fracture and the like, and in the process of testing the fiber performance, three links of sampling, carding and testing are generally included, and the stability and accuracy of each link directly influence the final test result.
At present, in the existing fiber detection device, the testing link of the fiber performance is mainly carried out by means of a photoelectric processing method, more researches are carried out on the link, and some achievements are obtained, but the attention on the sampling and carding links is less, so that the stability and consistency in the sampling and carding links still need to be improved.
The existing chemical fiber detection device has the following defects:
1. in the prior art, the performance detection device for the chemical fibers mainly researches a test link, and the research on a sampling link and a carding link of the tested fibers is rarely considered.
2. Patent document CN210834438U proposes a chemical fiber tensile property detecting device, but the chemical fiber tensile property detecting device of the patent document does not consider finishing fibers in the process of sampling the fibers, and removing ineffective floating fibers;
3. Patent document CN217845865U discloses a chemical fiber performance detecting device which simplifies the clamping and positioning operation of the fiber, but the chemical fiber performance detecting device of the patent document does not consider that after fixing the fiber, the fiber is further carded to remove the invalid fiber, thereby improving the accuracy of fiber performance detection;
4. In the prior art, the fiber detection device usually detects the fiber by a photoelectric detection method, but the photoelectric detection method cannot know the parallel yarn distribution condition and the resistance performance of chemical fibers.
Disclosure of Invention
The invention aims to provide a chemical short fiber performance detection device and a detection method thereof, which are 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 device comprises a fiber sampling system, a fiber carding system and a fiber testing system, wherein the fiber sampling system is used for sampling tested fibers, the fiber carding system is used for carding the tested fibers, and the fiber testing system is used for testing the properties of the fibers;
the fiber sampling system comprises a sampling tube, wherein the sampling tube is hollow and is in a closed cylinder shape, a fiber throwing opening is formed in the side surface of the sampling tube along the length direction of the sampling tube, and the radian of the fiber throwing opening is within 1/6 of the circumference of the side surface of the sampling tube;
The left side circumference position of sampling tube is provided with arrangement card clothing, and arrangement card clothing includes the arrangement with the needle, and the arrangement is with the equidistant setting of needle along the length direction of sampling tube and is constituted arrangement needle row, is provided with two sets of arrangement needle rows along the circumferencial direction of sampling tube, and two sets of arrangement needle rows include first arrangement needle row and second arrangement needle row.
Preferably, part of the side circumference of the sampling tube is provided with sampling openings at equal intervals along the length direction, the sampling openings are round holes, sampling openings arranged at equal intervals along the length direction form sampling port rows, the groups of sampling port rows are arranged in the circumferential direction of the outer side surface of the sampling tube in equal radian, the radian of the sampling port rows is within 1/2 of the side circumference of the sampling tube, the number of sampling openings in each group of sampling port rows is 3-5, and the sampling openings of each group of sampling port rows are staggered;
the number of the arrangement needles in each group of arrangement needle rows is 4-8, and the arrangement needles in each group of arrangement needle rows are staggered.
Preferably, the first arranging needle row is adjacent to the sampling port row, the arranging needles in the first arranging needle row are made of steel materials, the arranging needles in the first arranging needle row are vertically arranged on the side face of the sampling tube, the second arranging needle row is adjacent to the first arranging needle row, the arranging needles in the second arranging needle row are made of flexible materials, the arranging needles in the second arranging needle row are obliquely arranged on the side face of the sampling tube, the oblique direction is consistent with the rotation direction of the sampling tube during sampling, the oblique angle of the arranging needles in the second arranging needle row is 60-75 degrees, a baffle plate is arranged in the sampling tube between the first arranging needle row and the sampling port row adjacent to the first arranging needle row, one side face of the baffle plate is fixedly connected with the inner side face of the sampling tube between the first arranging needle row and the sampling port row adjacent to the first arranging needle row, the other side of the baffle plate is kept at a certain distance from the inner side surface of the sampling tube, the baffle plate divides the sampling tube into a fiber throwing area and a fiber arranging area, a pressurizing device is arranged in the limiting throwing area of the sampling tube, the pressurizing device comprises a pressurizing body, the pressurizing body is made of hard rubber, the cross section of the pressurizing body is of a fan-shaped structure, the cambered surface of the pressurizing body faces the inner side surface of the sampling tube to form a pressurizing action surface of the pressurizing body, the pressurizing action surface of the pressurizing body is provided with a pressure sensor, the pressure sensor is in communication connection with a display interface, the display interface displays the pressure value born by the pressure sensor in real time, the arc length of the fan shape of the cross section of the pressurizing body is the same as the arc length of the cross section of the side surface of the fiber throwing area of the sampling tube, one side of the pressurizing body, which is back to the pressurizing action surface, is provided with a fixing rod, and the fixing rod is fixedly connected with the pressurizing body, the length direction of dead lever keeps unanimous with the length direction of the pressurized body, and the both ends of dead lever all stretch out the pressurized body, the both ends that the dead lever stretched out the pressurized body are provided with the compression nut, and compression nut and dead lever rotatable coupling, the length of compression nut is greater than the diameter of dead lever, the medial surface of compression nut is provided with the pressurization internal thread, the inboard of compression nut has the compression screw rod through the pressurization internal thread connection, the medial surface fixed connection of the one end of compression screw rod and the corresponding position of sampling tube, the inside of compression screw rod wears to locate the compression nut, the surface of compression screw rod is provided with the pressurization external screw thread, and the mutual screw in of pressurization external screw thread and pressurization internal screw thread.
Preferably, the fiber sampling system further comprises a sampling device, the sampling device comprises a fixed plate, the fixed plate is of a cuboid structure, an embedding pin is arranged at the middle part of the lower side surface of the fixed plate, the embedding pin is of a cylinder shape, the upper end of the embedding pin is fixedly connected with the lower side surface of the fixed plate, the embedding pin is embedded in an action slot, the lower end of the embedding pin is rotationally connected with a first rotating rod, the middle of the first rotating rod is rotationally connected with a second rotating rod, one end of the second rotating rod is fixedly connected with a rotating shaft, the rotating shaft is driven by a sampling traversing motor to rotate, the middle part of the side surface of the fixed plate, facing the action side of the supporting plate, is provided with embedding slots along the length direction of the fixed plate, the embedding slots are of a cuboid structure, the embedding slots penetrate through the length direction of the fixed plate, the embedding slots do not penetrate through the thickness direction of the fixed plate, the lower side surface of the embedding slots is provided with rear saw tooth slots, the upper side surface of the embedding slots is provided with sampling rods, the inner side surfaces of the embedding slots are provided with sampling rods, the sampling rods are of cylindrical structures, the length of the sampling rods is larger than the length of the embedded slots, a certain number of the second rotating rods are arranged along the length of the saw tooth slots, one end of the sampling slots is uniformly spaced along the length direction of the sampling slots, the sampling rods, the sampling slots are respectively connected with the corresponding arc slots, the corresponding arc-shaped slot and the sampling slots are respectively arranged at the rear end of the sampling rod and the corresponding arc-shaped slot and the sampling slot and the corresponding end are connected with the corresponding arc-shaped 3, the rotating head is cuboid.
Preferably, the adjacent side of the fiber sampling system is provided with a fiber carding system, the fiber carding system comprises a carding roller, the carding roller is driven by a corresponding transmission mechanism to rotate anticlockwise, the outer surface of the carding roller is provided with carding wires, the carding wires comprise carding wires, the carding wires are made of flexible materials, the carding wires are distributed at equal intervals along the length direction of the side surface of the carding roller to form carding wires, the distance between the carding wires in the carding wires is smaller than the distance between the finishing wires in the finishing wires, the carding wires are vertically arranged on the surface of the carding roller, each carding wire is distributed at equal radian intervals along the circumferential direction of the side surface of the carding roller, the side surface of the carding roller is completely covered by each carding wire, two adjacent carding wires form a group, and the carding wires of two carding wires in the group are staggered along the length direction of the side surface of the carding roller.
Preferably, a fiber testing system is arranged on one adjacent side of the fiber carding system, the fiber testing system comprises a light emitting device, a shooting device and an image processing analysis system, the light emitting device is an ultraviolet light source, an infrared light source and a white light source, the shooting device is located above the light emitting device and is a linear array camera, the shooting device is in communication connection with the image processing analysis system, the shooting device transmits a shot image to the image processing analysis system in real time, and a parallel-wire sample image is stored in the image processing analysis system.
Preferably, the fiber sampling system, the fiber carding system and the fiber testing system are arranged right in front of the fiber testing system, the fiber testing platform comprises a supporting plate, the supporting plate is supported by a supporting system, one side of the supporting plate, which is opposite to the fiber sampling system, the fiber carding system and the fiber testing system, is kept horizontal to form a horizontal measurement of the supporting plate, the distance between the fiber carding system and the horizontal measurement of the supporting plate is larger than the distance between the fiber sampling system and the horizontal measurement of the supporting plate, the distance between the fiber testing system and the horizontal measurement of the supporting plate is equal to the distance between the fiber carding system and the horizontal measurement of the supporting plate, the corresponding position on the other side of the supporting plate is respectively kept close to the fiber sampling system, the fiber carding system and the fiber testing system to form an action measurement of the supporting plate, the action side of the supporting plate close to the fiber testing system is provided with a fiber supporting plate, the fiber supporting plate is positioned between a light emitting device and a light receiving device, the middle part of the width of the supporting plate is made of a full-transparent material, an action seam is formed along the length direction of the supporting plate, and the sampling device is positioned inside the action seam.
Preferably, the opposite side of fibre test system is provided with chemical fiber resistance appearance, and the front of chemical fiber resistance appearance is provided with the testing box, and one side of the testing box of chemical fiber resistance appearance is connected with the fibre conveyer pipe, and the one end and the fibre test system of fibre conveyer pipe are connected, and the fibre conveyer pipe stretches to the one end of fibre test system and is located the fibre and holds the piece directly over, and one side intercommunication of testing box has negative pressure system, and the junction of testing box and negative pressure system is provided with the fibre and blocks the filter screen.
Preferably, a method for detecting the performance of the chemical short fiber comprises the following steps:
S1, in an initial state, rotating a rotating head through external force, spreading needed test fibers on the inner side surfaces of a pressurizing body and a sampling tube through a throwing port, rotating pressurizing nuts at two ends of a fixing rod to enable pressure values to meet testing requirements, and rotating the sampling tube to enable the tested fibers to be held by a sampling device;
s2, under the holding action, along with the rotation of the sampling tube, the tested fiber is pulled out completely, so that the tested fiber is transferred to the sampling device;
S3, along with the rotation of the sampling tube, the finishing card clothing on the sampling tube is contacted with the fibers, so that the removal of part or all of ineffective floating fibers and the straightening of bent fibers are realized;
s4, after the sampling tube rotates to the throwing port, the sampling transverse moving motor drives the sampling device to move along the length direction of the supporting plate through transmission of the rotation of the first rotating rod, and the sampling device is moved to the front of the fiber carding system;
S5, the transmission mechanism drives the carding roller to rotate anticlockwise, and during the carding roller moving process, carding card clothing produces carding action on the held fibers, so that further removal of ineffective floating fibers and straightening of the fibers are effectively detected;
S6, after the sampling tube filled with the test fibers is combed by the fiber combing system, the sampling transverse moving motor drives the sampling device to move to the right front of the fiber testing system;
S7, in the process of further carding the fibers, the light emitting device emits light, the photographing device photographs fiber images in real time, the images are transmitted to the image processing and analyzing system, and the image processing and analyzing system analyzes the fiber images;
S8, adsorbing the fibers to the inside of the test box until the inside of the test box is full by a negative pressure system which is connected with the test box in an intercommunicating way, obtaining the resistance value of the tested fibers by applying test voltages to two electrodes of the test box by the chemical fiber specific resistance meter, and finally driving the sampling device to move to the right front of the fiber sampling system by the sampling transverse motor.
In S2, the method further includes the following steps:
S21, in the process of transferring the tested fiber, the fiber adjacent to the tested fiber is driven to a sampling device at the same time under the action of friction force, so that an ineffective floating fiber is formed;
in S3, the method further includes the following steps:
and S31, when the finishing card clothing on the sampling tube is contacted with the fibers, the first finishing needle is used for removing the ineffective floating fibers, and the second finishing needle is used for stretching part or all of the fibers, so that the removal of the ineffective holding fibers and the straightening of the bending part of the effective detection fibers are realized.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, by arranging the fiber sampling system which can hold the fibers and can finish the fibers, the fiber carding system with the flexible hairbrush, and the fiber testing system with the light emitting and receiving device and the image processing device, more stable and accurate sampling, carding and testing of the chemical fibers are realized, especially, the detection of the special doubling phenomenon in the chemical fibers is realized, and then, more stable and accurate testing of the chemical fiber performance is realized.
2. According to the invention, the two groups of arrangement needle rows are arranged, the first group of arrangement needle rows are made of steel materials, the first group of arrangement needle rows made of steel materials can remove invalid floating fibers in tested fibers along with the rotation of the sampling tube, the second group of arrangement needle rows are made of flexible materials, the invalid floating fibers can be further removed, and meanwhile, the invalid holding fibers can be hooked, so that the invalid holding fibers are removed, and meanwhile, the flexible second arrangement needle rows can straighten the bending part of the effective detection fibers, and the accuracy of fiber performance detection can be improved by arranging the fibers in the sampling process.
3. According to the invention, the fiber carding system is arranged to further card the sampled fiber, the card clothing produces a carding effect on the held fiber, under the carding effect, the ineffective floating fiber is further removed, the ineffective holding fiber is further hooked and then removed, the further straightening of the bending part of the fiber is effectively detected, and the carding effect is gradually enhanced along with the gradual increase of the rotating speed of the carding roller, so that the gradual enhanced wireless fiber removal and the effective fiber straightening effect are realized.
4. According to the invention, the shooting device shoots the fiber image irradiated by the light-emitting device and transmits the image to the image processing analysis system, the image processing device analyzes the length distribution condition of the shot fiber, and the shooting picture is compared with the internally stored doubling sample image to know the doubling distribution condition in the tested chemical fiber; testing the resistance value of chemical fiber by setting a chemical fiber specific resistance meter; the chemical fiber performance detection device can test the length performance of chemical fibers, and simultaneously can test the doubling distribution condition and the resistance value of the chemical fibers, thereby realizing the multi-performance test of the chemical fibers.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a chemical short fiber performance detection device according to the present invention;
FIG. 2 is a schematic diagram of the internal transmission mechanism of the sampling device according to the present invention.
In the figure: 1. a fiber sampling system; 2. a fiber carding system; 3. a fiber testing system; 4. a sampling tube; 5. a sampling opening; 6. a finishing needle; 7. a baffle plate; 8. a pressurizing body; 9. a pressurizing device; 10. a pressure sensor; 11. a compression nut; 12. a fixed rod; 13. a pressurizing screw; 14. a sampling device; 15. a holding plate; 16. a fixing plate; 17. front tooth grooves; 18. a rear serration groove; 19. a sampling rod; 20. sampling an arc; 21. a rotating head; 22. a photographing device; 23. a light emitting device; 24. an image processing analysis system; 25. a fiber holding sheet; 26. a chemical fiber specific resistance meter; 27. a test cartridge; 28. a negative pressure system; 29. a fiber blocking filter screen; 30. a fiber delivery tube; 31. embedding a pin; 32. a first rotating lever; 33. a second rotating lever; 34. and (3) rotating the shaft.
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.
Referring to fig. 1, an embodiment of the present invention is provided: the device comprises a fiber sampling system 1, a fiber carding system 2 and a fiber testing system 3, wherein the fiber sampling system 1 is used for sampling tested fibers, the fiber carding system 2 is used for carding the tested fibers, and the fiber testing system 3 is used for testing the properties of the fibers;
The fiber sampling system 1 comprises a sampling tube 4, wherein the sampling tube 4 is hollow and is in a closed cylinder shape, a fiber throwing opening is formed in the side surface of the sampling tube 4 along the length direction of the sampling tube 4, and the radian of the fiber throwing opening is within 1/6 of the circumference of the side surface of the sampling tube 4;
the circumference position of the residual side surface of the sampling tube 4 is provided with a finishing card clothing, the finishing card clothing comprises finishing needles 6, the finishing needles 6 are arranged at equal intervals along the length direction of the sampling tube 4 to form finishing needle rows, two groups of finishing needle rows are arranged along the circumference direction of the sampling tube 4, and the two groups of finishing needle rows comprise a first finishing needle row and a second finishing needle row.
The circumference of part of the side surface of the sampling tube 4 is provided with sampling openings 5 at equal intervals along the length direction, the sampling openings 5 are round holes, sampling openings 5 which are arranged at equal intervals along the length direction form sampling port rows, 3 groups of sampling port rows are arranged in the circumference of the outer side surface of the sampling tube 4 in equal radian, the radian of the sampling port rows is within 1/2 of the circumference of the side surface of the sampling tube 4, the number of the sampling openings 5 in each group of sampling port rows is 3-5, and the sampling openings 5 of each group of sampling port rows are staggered;
The number of the arrangement needles 6 in each group of arrangement needle rows is 4-8, and the arrangement needles 6 in each group of arrangement needle rows are staggered.
The fiber sampling system 1 further comprises a sampling device 14, the sampling device 14 comprises a fixed plate 16, the fixed plate 16 is of a cuboid structure, an embedded pin 31 is arranged in the middle of the lower side surface of the fixed plate 16, the embedded pin 31 is of a cylinder shape, the upper end of the embedded pin 31 is fixedly connected with the lower side surface of the fixed plate 16, the embedded pin 31 is embedded in an action slot, the lower end of the embedded pin 31 is rotationally connected with a first rotating rod 32, the middle of the first rotating rod 32 is rotationally connected with a second rotating rod 33, one end of the second rotating rod 33 is fixedly connected with a rotating shaft 34, the rotating shaft 34 is driven by a sampling transverse movement motor to rotate, an embedded slot is formed in the middle part of the side surface of the fixed plate 16, facing the action side of the supporting plate 15, along the length direction of the fixed plate 16, the embedded slot is of the cuboid structure, the embedded slot penetrates the length direction of the fixed plate 16, and the embedded slot does not penetrate the thickness direction of the fixed plate 16, the lower side of the embedded seam is provided with a rear sawtooth groove 18, the upper side of the embedded seam is provided with a front sawtooth groove 17, the inside of the embedded seam is provided with a sampling rod 19, the sampling rod 19 is of a cylindrical structure, the length of the sampling rod 19 is larger than that of the embedded seam, a certain number of sampling arcs 20 are arranged at equal intervals along the length direction of the side surface of the sampling rod 19, the sampling arcs 20 are arranged along the circumferential direction of the side surface of the sampling rod 19, the sampling arcs 20 occupy 2/3-3/4 circular arcs of the side surface of the sampling rod 19, the outer surface of the fixed plate 16 is provided with a plurality of groups of front sawtooth grooves 17 and rear sawtooth grooves 18, the sampling rod 19 is respectively embedded into the front sawtooth grooves 17 and the rear sawtooth grooves 18 at corresponding positions through the sampling arcs 20 to realize the connection of the sampling rod 19 and the fixed plate 16, one end of the connected sampling rod 19 is aligned with the sampling seam on the surface of the fixed plate 16, the other end of the sampling rod 19 extends out of the sampling slot, and one end of the sampling rod 19 extending out of the sampling slot is fixedly connected with a rotating head 21, and the rotating head 21 is cuboid.
The inside of the sampling tube 4 between the first group of arrangement needle rows and the sampling port rows adjacent to the first group of arrangement needle rows is provided with a baffle plate 7, the baffle plate 7 is of a cuboid structure, one side edge of the baffle plate 7 is fixedly connected with the inner side surface of the sampling tube 4 between the first group of arrangement needle rows and the sampling port rows adjacent to the first group of arrangement needle rows, the other side edge of the baffle plate 7 keeps a certain distance with the inner side surface of the sampling tube 4, the baffle plate 7 divides the sampling tube 4 into a fiber throwing area and a fiber arrangement area, the inside of the limiting throwing area of the sampling tube 4 is provided with a pressurizing device 9, the pressurizing device 9 comprises a pressurizing body 8, the pressurizing body 8 is made of hard rubber, the cross section of the pressurizing body 8 is of a fan-shaped structure, the cambered surface of the pressurizing body 8 faces the inner side surface of the sampling tube 4 to form a pressurizing action surface of the pressurizing body 8, the pressurizing action surface of the pressurizing body 8 is provided with a pressure sensor 10, the pressure sensor 10 is in communication connection with a display interface, the display interface displays the pressure value born by the pressure sensor 10 in real time, the fan-shaped length of the cross section of the pressurizing body 8 is identical with the length of the cross section of the fiber throwing side surface of the sampling tube 4, the pressurizing body 8 is back to the pressurizing body 8, one side 12 is provided with a pressurizing body 12, the pressurizing body 12 is fixedly connected with a pressurizing nut 11, the inner side 12 is fixedly connected with the pressurizing nut 11 through a pressurizing nut 11, the two ends of the pressurizing nut 11 is fixedly connected with the pressurizing nut 11 in the diameter fixing the pressurizing nut 11, the pressurizing nut is fixedly connected with the two ends 11 in the diameter direction of the pressurizing nut 11, the pressurizing nut is fixedly connected with the pressurizing nut is fixedly by the pressurizing nut 11, and the pressurizing nut is fixedly connected with the pressurizing nut and the pressurizing nut by the pressurizing nut and the pressurizing nut. One end of the pressurizing screw 13 is fixedly connected with the inner side surface of the corresponding position of the sampling tube 4, the pressurizing screw 13 penetrates through the pressurizing nut 11, the outer surface of the pressurizing screw 13 is provided with pressurizing external threads, and the pressurizing external threads and the pressurizing internal threads are mutually screwed in.
Further, when the chemical short fiber performance testing device is used, in an initial state, a certain distance is kept between the pressurizing body 8 of the pressurizing device 9 and the inner side surface of the sampling tube 4, meanwhile, the sampling device 14 is arranged right in front of the fiber sampling system 1, the rotating head 21 is rotated by adopting external force, the sampling arc 20 of the sampling rod 19 is rotated to the outward side of the sampling slot, and the side, close to the throwing opening, of the fiber throwing area of the sampling tube 4 is kept opposite to the sampling device 14; then, the fiber to be tested is paved between the pressurizing body 8 and the inner side surface of the sampling tube 4 through the throwing opening, and meanwhile, the pressurizing nuts 11 at the two ends of the fixing rod 12 are rotated, so that the pressurizing body 8 tightly presses the placed fiber until the pressure value sensed by the pressure sensor 10 reaches the required size for testing, an operator can check the real-time pressure value sensed by the pressure sensor 10 through a display interface, one end, two ends or the middle part of the fiber to be tested extends out of the sampling opening 5 under the action of the pressure, and when one end of the fiber to be tested extends out of the sampling opening 5 along with the rotation of the sampling tube 4, the extending end of the fiber to be tested can be embedded between the front serration groove 17 or the rear serration groove 18 of the sampling device 14 and the sampling arc 20, so that one end of the fiber is held by the sampling device 14, and under the holding action, along with the rotation of the sampling tube 4, the fiber to be tested can be completely pulled out of the sampling opening 5, so that the fiber to be tested is transferred onto the sampling device 14, and the fiber to be effectively detected fiber is formed; when the two ends of the fiber extend out of the sampling opening 5, the tested fiber is also held by the sampling device 14 and is completely transferred to the sampling device 14, so that the fiber is effectively detected; when the middle portion of the fiber under test protrudes out of the sampling opening 5, the fiber cannot be held by the sampling device 14, thus constituting an ineffective holding fiber.
Referring to fig. 1 and 2, an embodiment of the present invention is provided: a chemical short fiber performance detection device and a detection method thereof, wherein a first arrangement needle row is adjacent to a sampling port row, arrangement needles 6 in the first arrangement needle row are made of steel materials, the arrangement needles 6 in the first arrangement needle row are vertically arranged on the side surface of a sampling tube 4, a second arrangement needle row is adjacent to the first arrangement needle row, the arrangement needles 6 in the second arrangement needle row are made of flexible materials, the arrangement needles 6 in the second arrangement needle row are obliquely arranged on the side surface of the sampling tube 4, the oblique direction is consistent with the rotation direction of the sampling tube 4 during sampling, and the inclination angle of the arrangement needles 6 in the second arrangement needle row is 60-75 degrees.
Further, when the held fiber is transferred to the sampling device 14, the fiber adjacent to the northern Europe held fiber is simultaneously driven to the sampling device 14 under the action of friction force, so that ineffective floating fiber is formed, along with the rotation of the sampling tube 4, the fiber transferred to the sampling device 14 is contacted with the finishing card clothing of the sampling tube 4, and under the action of the first group of finishing needle rows, the first group of finishing needle rows are contacted with the tested fiber, so that the ineffective floating fiber is directly combed down by the steel finishing needle 6, and the removal of part or all of the ineffective floating fiber is realized; under the action of the second group of arrangement needle rows, the second group of arrangement needle rows are contacted with the tested fibers, so that the invalid floating fibers are further removed, meanwhile, the middle part of the invalid holding fibers can be possibly hooked by the soft arrangement needle 6, then under the rotation drive of the sampling tube 4, the flexible arrangement needle 6 is stretched, bent and deformed, the hooked fibers can be stretched at the same time by the flexible arrangement needle 6 in the process until the invalid holding fibers are pulled out by the sampling device 14, and therefore, part or all of the invalid holding fibers are removed, meanwhile, the bending part of the effective detection fibers in a bending state can be hooked by the soft arrangement needle 6, and then the flexible arrangement needle 6 straightens the bending part of the effective detection fibers under the rotation drive of the sampling tube 4, so that the straightening of part or all of the effective detection fibers is realized, and the process continues until the sampling tube 4 rotates to a throwing opening.
Referring to fig. 1 and 2, an embodiment of the present invention is provided: a chemical short fiber performance detection device and a detection method thereof are provided, wherein a fiber carding system 2 is arranged on one adjacent side of a fiber sampling system 1, the fiber carding system 2 comprises a carding roller, the carding roller is driven by a corresponding transmission mechanism to rotate anticlockwise, carding clothing is arranged on the outer surface of the carding roller, the carding clothing comprises carding needles which are flexible materials, the carding needles are distributed at equal intervals along the length direction of the side surface of the carding roller to form carding needle rows, the distance between the carding needles in the carding needle rows is smaller than the distance between finishing needles 6 in the finishing needle rows, the carding needles are vertically arranged on the surface of the carding roller, the carding needle rows are distributed at equal radian intervals along the circumferential direction of the side surface of the carding roller, the side surface of the carding roller is completely covered by the carding needle rows, two adjacent carding needle rows form a group, and the carding needles of two carding needle rows in the group are staggered along the length direction of the side surface of the carding roller.
Further, after the detected fibers are processed by the sorting needle row, the sampling transverse moving motor drives the rotating shaft 34 to rotate clockwise or anticlockwise, then drives the second rotating rod 33 to rotate synchronously, the synchronous rotation of the second rotating rod 33 and the rotating shaft 34 drives the first rotating rod 32 to rotate, the rotation of the first rotating rod 32 enables the sampling device 14 to move along the length direction of the supporting plate 15, thereby driving the sampling device 14 to move to the right front of the fiber carding system 2, at the moment, the fibers on the sampling device 14 are supported by the supporting plate 15 positioned in front of the sampling device, and meanwhile, the carding roller is driven by a corresponding transmission mechanism, so that the carding roller rotates anticlockwise, in the process of rotating the carding roller, carding card clothing produces a carding effect on the supported fibers, invalid held fibers are further removed under the carding effect of the carding card clothing, the invalid held fibers are further hooked, the bending part of the fibers is effectively detected to be further straightened, and the carding effect is gradually enhanced along with the gradual increase of the rotating speed of the carding roller, so that the gradually enhanced removing and straightening effect is realized, in the process of carrying out the fibers by the corresponding transmission mechanism, and the carding roller 4 is driven by the corresponding transmission mechanism to rotate anticlockwise until the initial rotating state.
Referring to fig. 1 and 2, an embodiment of the present invention is provided: a chemical short fiber performance detection device and a detection method thereof, a fiber test system 3 is arranged on one side of a fiber carding system 2 adjacent to the fiber test system, the fiber test system comprises a light-emitting device 23, a shooting device 22 and an image processing analysis system 24, the light-emitting device 23 is an ultraviolet light source, an infrared light source and a white light source, the shooting device 22 is positioned above the light-emitting device 23, the shooting device 22 is a linear array camera, the shooting device 22 is in communication connection with the image processing analysis system 24, the shooting device 22 transmits a shot image to the image processing analysis system 24 in real time, and a parallel yarn sample image is stored in the image processing analysis system 24.
The fiber test platform is arranged right in front of the fiber sampling system 1, the fiber carding system 2 and the fiber test system 3, the fiber test platform comprises a supporting plate 15, the supporting plate 15 is supported by a supporting system, one side of the supporting plate 15, which faces away from the fiber sampling system 1, the fiber carding system 2 and the fiber test system 3, is kept horizontal, the horizontal measurement of the supporting plate 15 is formed, the distance between the fiber carding system 2 and the horizontal measurement of the supporting plate 15 is larger than the distance between the fiber sampling system 1 and the horizontal measurement of the supporting plate 15, the distance between the horizontal measurement of the fiber test system 3 and the horizontal measurement of the supporting plate 15 is equal to the distance between the horizontal measurement of the fiber carding system 2 and the horizontal measurement of the supporting plate 15, the corresponding position of the other side of the supporting plate 15 is kept close to the fiber sampling system 1, the fiber carding system 2 and the fiber test system 3 respectively, the action measurement of the supporting plate 15 is formed, the action side of the supporting plate 15 close to the fiber test system 3 is provided with a fiber supporting plate 25, the fiber supporting plate 25 is positioned between a light emitting device 23 and a light receiving device, the fiber supporting plate 25 is made of a light-transmitting material, the distance between the supporting plate 15 and the action slot 14 is formed along the length direction of the supporting plate 15, and the action slot is formed inside the action slot of the device.
The opposite side of fibre test system 3 is provided with chemical fiber specific resistance appearance 26, and the front of chemical fiber specific resistance appearance 26 is provided with testing box 27, and one side of testing box 27 of chemical fiber specific resistance appearance 26 is connected with fibre conveyer pipe 30, and the one end of fibre conveyer pipe 30 is connected with fibre test system 3, and the one end that fibre conveyer pipe 30 stretched to fibre test system 3 is located the fibre and holds piece 25 directly over, and one side intercommunication of testing box 27 has negative pressure system 28, and the junction of testing box 27 and negative pressure system 28 is provided with fibre and blocks filter screen 29.
Further, after the fiber carding system 2 carries out carding treatment on the fiber, the sampling transverse movement motor drives the rotating shaft 34 to rotate, so that the sampling device 14 is driven to move to the right front of the fiber testing system 3, at the moment, the fiber on the sampling device 14 is supported by the fiber supporting sheet 25, the light emitted by the light emitting device 23 irradiates the fiber on the fiber supporting sheet 25, the shooting device 22 shoots the fiber under the light in real time, so as to obtain a fiber image, the shot image is transmitted to the image processing analysis system 24 in real time, the image processing analysis system 24 processes the acquired image, the corresponding fiber length distribution situation is obtained through the numerical change of the pixel points of the image along the fiber length direction, and whether the tested chemical fiber has the doubling distribution situation is obtained through comparison with the stored doubling sample image; after the shooting device 22 acquires an image, the negative pressure system 28 starts to work, the negative pressure system 28 adsorbs the fibers on the fiber supporting sheet 25, which have been subjected to image shooting, through the fiber conveying pipe 30, the adsorbed fibers enter the inside of the test box 27 through the fiber conveying pipe 30 until the adsorbed fibers fill the test box 27, after the test box 27 is filled, the resistance test electrode on the chemical fiber resistance meter 26 is connected to two electrodes of the test box 27, the test voltage is applied to the two electrodes of the test box 27, the resistance value tested by the chemical fiber resistance meter 26 is checked after the test voltage is electrified for 1min, and the resistance value of the tested fibers is taken as the resistance value of the tested fibers after the test voltage is electrified for 1 min; after the fiber testing system 3 tests the performance of the fiber, the sampling traversing motor drives the rotating shaft 34 to rotate anticlockwise or clockwise, drives the second rotating rod 33 to synchronously rotate, then drives the first rotating rod 32 to rotate, and the rotation of the first rotating rod 32 drives the sampling device 14 to move along the length direction of the supporting plate 15 until the sampling device 14 moves to the right front of the fiber sampling system 1.
Further, a method for detecting the performance of the chemical short fiber comprises the following steps:
s1, in an initial state, rotating a rotating head 21 through external force, spreading needed test fibers on the inner sides of a pressurizing body 8 and a sampling tube 4 through a throwing port, rotating pressurizing nuts 11 at two ends of a fixing rod 12 to enable pressure values to meet testing requirements, and rotating the sampling tube 4 to enable the tested fibers to be held by a sampling device 14;
s2, under the holding action, along with the rotation of the sampling tube 4, the tested fibers are pulled out completely, so that the tested fibers are transferred to the sampling device 14;
S3, along with the rotation of the sampling tube 4, the finishing card clothing on the sampling tube 4 contacts with the fibers to remove part or all of ineffective floating fibers and straighten the bent fibers;
S4, after the sampling tube 4 rotates to the throwing port, the sampling transverse moving motor drives the sampling device 14 to move along the length direction of the supporting plate 15 through transmission of rotation of the first rotating rod 32, and the sampling device 14 is moved to the front of the fiber carding system 2;
S5, the transmission mechanism drives the carding roller to rotate anticlockwise, and during the carding roller moving process, carding card clothing produces carding action on the held fibers, so that further removal of ineffective floating fibers and straightening of the fibers are effectively detected;
S6, after the sampling tube 4 with the test fibers is combed by the fiber combing system 2, the sampling traversing motor drives the sampling device 14 to move to the right front of the fiber testing system 3;
S7, in the process of further carding the fibers, the light emitting device 23 emits light, the photographing device 22 photographs fiber images in real time, and the images are transmitted to the image processing and analyzing system 24, and the image processing and analyzing system analyzes the fiber images 24;
S8, a negative pressure system 28 which is connected with the test box 27 in an intercommunicating manner adsorbs the fibers into the test box 27 until the fibers are full, a chemical fiber specific resistance meter 26 obtains the resistance value of the tested fibers by applying test voltages to two electrodes of the test box 27, and finally the sampling transverse movement motor drives the sampling device 14 to move to the right front of the fiber sampling system 1.
In S2, the method further includes the following steps:
S21, in the process of transferring the tested fiber, the fiber adjacent to the tested fiber is driven to the sampling device 14 at the same time under the action of friction force, so that ineffective floating fiber is formed;
in S3, the method further includes the following steps:
And S31, when the finishing card clothing on the sampling tube 4 is contacted with the fibers, the first finishing needle is used for removing the ineffective floating fibers, and the second finishing needle is used for stretching part or all of the fibers, so that the removal of the ineffective holding fibers and the straightening of the bending part of the effective detection fibers are realized.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
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| CN114877810A (en) * | 2022-06-08 | 2022-08-09 | 石河子大学 | Cotton fiber length detection device and application method based on machine vision |
| CN117488444A (en) * | 2023-09-25 | 2024-02-02 | 江南大学 | A kind of flexible carding carding machine and its carding method |
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| US5178007A (en) * | 1991-09-17 | 1993-01-12 | Zellweger Uster, Inc. | Automatic fiber bundle testing apparatus |
| US5367747A (en) * | 1992-12-31 | 1994-11-29 | Zellweger Uster, Inc. | Needle-based apparatus for individualizing fibers and other textile entities for testing purposes |
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