An apparatus for automatically detecting the three-dimensional structure of fibers

Abstract

The present invention discloses a device for automatically detecting the three-dimensional structure of fibers, mainly to solve the problem of low efficiency in the existing method of detecting the crimp of fiber bundles relying on manual operation. It includes: a yarn taking device, the yarn taking device has a yarn guiding frame, the yarn guiding frame is arranged at the top of the yarn taking device and is used for guiding in fiber bundles; an upper gripper; a holder, the holder is arranged below the upper gripper; a rotating arm; and a lower gripper, the lower gripper is arranged on the rotating arm and is used for gripping fiber bundles; a water bath oven, the water bath oven is arranged directly opposite to the yarn taking device; a yarn rack; a heating pipe, the heating pipe is arranged in the upper half of the water bath oven; a first heat preservation board, the first heat preservation board is arranged on the right side of the water bath oven; and a second heat preservation board, the second heat preservation board is arranged at the rear of the water bath oven. The present invention has the advantage of improving the test efficiency of fibers.

Description

Technical Field

[0001] The present invention relates to the field of fiber testing, and particularly to a device for automatically detecting the three-dimensional structure of fibers. Background Art

[0002] Now, with the continuous progress of technology, the properties of polyester filament are also constantly enriched. Through process improvement, some polyester filament products can achieve the property of potential crimp (at normal temperature, it is basically straight like ordinary polyester filament, but when the environmental temperature reaches a certain high value, the fiber will be in a natural curly shape, which can be achieved by boiling in hot water or drying in a hot box). Such products are mostly used for wool-like fabrics.

[0003] When producing such products, due to their properties, they have very high requirements for the accuracy of internal process parameter settings and the degree of external environmental interference (wind speed, temperature, humidity...). A slight oversight may affect the product quality and cause fluctuations or changes in the product style. Conventional detection methods cannot confirm their style (three-dimensional form). To ensure consistent product style, we now add a detection step: crimp style detection.

[0004] For the current crimp style detection, we use manual visual inspection to confirm the style, which has problems such as low work efficiency, inconsistent evaluation criteria, and differences in operation methods. Now, we want to develop a device to replace manual operation and measurement, standardize the detection criteria, and make the style data-based. A brief introduction to the manual operation method: First, determine how many yarn cakes' filaments are bundled together according to the thickness of the product specifications. Generally, 6 - 8 filaments are bundled into one bunch, and then cut into 1 - 3 cm segments and vertically placed in hot water above 80 °C. After 3 - 5 seconds, the fibers will be crimped and fixed. At this time, by comparing with the reference filament, the consistency of the style can be determined. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for automatically detecting the three-dimensional structure of fibers, so as to solve the problems of low efficiency, inconsistent evaluation criteria, and differences in operation methods in the existing detection of the crimp degree of fiber bundles by manual operation.

[0006] To achieve the above object, the embodiments of the present invention adopt the following solutions:

[0007] A device for automatically detecting the three-dimensional structure of fibers, characterized by comprising:

[0008] A yarn taking device, the yarn taking device having

[0009] A yarn guiding frame, the yarn guiding frame is arranged at the top of the yarn taking device and is used for guiding in fiber bundles;

[0010] An upper clamp, the upper clamp is arranged below the yarn guiding frame;

[0011] A gripper, which is arranged below the upper gripper;

[0012] A rotating arm, which is arranged below the gripper; and

[0013] A lower gripper, which is arranged on the rotating arm and is used for gripping a fiber tow;

[0014] A water bath oven, which is arranged directly opposite the yarn taking device, and the water bath oven has

[0015] A carrying frame, which is arranged in the water bath oven;

[0016] A yarn rack, which is arranged on the carrying frame;

[0017] A heating pipe, which is arranged in the upper half of the water bath oven;

[0018] A first heat preservation board, which is arranged on the right side of the water bath oven; and

[0019] A second heat preservation board, which is arranged at the rear of the water bath oven.

[0020] The upper gripper, the gripper and the lower gripper are used for clamping the fiber tow. The rotating arm can rotate to rotate the fiber tow clamped by the lower gripper onto the yarn rack. The yarn rack can clamp the fiber tow on the lower gripper and put it into the carrying frame. Hot water is introduced into the carrying frame. The first heat preservation board and the second heat preservation board can cover the carrying frame for heat preservation, so that the fiber tow deforms by absorbing heat, and the three-dimensional size of the fiber tow can be measured when it is put into a three-dimensional detector.

[0021] Preferably, a sliding track is arranged on one side of the yarn taking device. A first servo motor is arranged on one side of the rotating arm. The first servo motor is connected to the rotating arm. A sliding seat is arranged at the bottom of the first servo motor. The sliding seat is arranged on the sliding track. A pneumatic scissors is arranged on the lower gripper, and the pneumatic scissors is used for cutting the fiber tow.

[0022] Preferably, a first snagging wire is connected to the first heat preservation board, and a second snagging wire is connected to the second heat preservation board. The bottoms of the first heat preservation board and the second heat preservation board are in a sharp-tooth shape. A first small motor is arranged below the first heat preservation board, and a second small motor is arranged below the second heat preservation board. Gears are arranged at the transmission ends of the first small motor and the second small motor for driving the first heat preservation board and the second heat preservation board.

[0023] Preferably, a water pipe is provided on the left side of the water bath oven for pouring hot water. A second telescopic cylinder is also provided at the rear of the water bath oven. The second telescopic cylinder is located below the second heat preservation plate. A plug is provided at the telescopic end of the second telescopic cylinder. A water outlet head is provided at the rear of the bearing frame. The plug is used to block the water outlet. A downwardly inclined diversion port is also provided at the rear of the water bath oven. The diversion port is located below the second telescopic cylinder.

[0024] Preferably, the yarn rack has

[0025] a hanging tray;

[0026] a chassis, and the chassis is arranged in the bearing frame;

[0027] a chuck, the chuck is located between the hanging tray and the chassis, and a suspension wire is provided on the chuck. The suspension wire is connected to the hanging tray;

[0028] Sliding columns, there are three sliding columns, and they pass through the hanging tray, the chassis and the chuck.

[0029] Preferably, a plurality of clips are provided at the bottom of the hanging tray. The clips include a lower clamping plate and an upper clamping plate. A spring is buckled on the lower clamping plate and the upper clamping plate. The clips are arranged obliquely upward for clamping fiber bundles.

[0030] Preferably, a toothed disc is fixed at the middle of the bottom of the bearing frame. Three driven gears are provided in the toothed disc. A driving gear is provided between the driven gears. The bottom of the sliding column passes through the driven gears. A large motor is provided below the driving gear. The large motor can drive the driving gear to rotate. A support base is also provided below the bearing frame. The support base is located on both sides of the bearing frame. A cylinder is provided in the support base for pushing the bearing frame. A support plate is fixed at the bottom of the support base. A third telescopic cylinder is provided at the bottom of the support plate.

[0031] Preferably, a moving seat is provided at the top of the water bath oven. A first telescopic cylinder is provided at the rear of the water bath oven. The first telescopic cylinder is connected to the moving seat. A wire winding frame is provided above the moving seat. The wire on the wire winding frame is connected to the hanging tray. A second servo motor is provided on one side of the wire winding frame. The second servo motor is used to drive the wire winding frame to wind and unwind the wire.

[0032] Preferably, a pneumatic scissor is provided on the lower clamp hand. The pneumatic scissor is in an "F" shape and is used for cutting fiber filaments.

[0033] A usage method of an apparatus for automatically detecting the three-dimensional structure of fibers includes:

[0034] Start the yarn taking device. The fiber tow is clamped on the yarn guide rack through manual operation. The upper gripper swings under the yarn guide rack, clamps the fiber tow and then swings back. Then the lower gripper moves up between the yarn guide rack and the upper gripper, clamps the fiber tow and moves downward. At this time, the upper gripper releases, and the lower gripper pulls the fiber tow to a fixed position and pauses temporarily, completing the yarn taking process;

[0035] Start the first servo motor. The first servo motor drives the rotating arm to rotate, so that the lower gripper pulls the fiber tow into the yarn rack and places it between the clips. Start the large motor. The large motor drives the driving gear to rotate, drives the driven gear to rotate, and the driven gear drives the sliding column to rotate, making the entire yarn rack rotate, and the clip rotates into the shear mouth of the "F"-shaped pneumatic scissors. Then use the gap between the lower clamping plate and the upper clamping plate to clamp the fiber tow. Under the elastic force of the spring, the fiber tow is clamped. Finally, start the pneumatic scissors to cut the fiber tow, and the rotating arm rotates back to the original position, completing the clamping process;

[0036] The bearing frame is retracted into the water bath oven by the cylinder in the support seat. The first telescopic cylinder drives the moving seat to retract. Then start the second servo motor to drive the wire reel to release the wire, so that the hanging plate and the chuck are lowered into the bearing frame. Then start the third telescopic cylinder to move the bearing frame and the support seat down to the lower half of the water bath oven. Insert the water inlet pipe from the left side of the water bath oven, inject hot water, and start the first small motor and the second small motor successively to send the first heat preservation plate and the second heat preservation plate into the water bath oven and cover the bearing frame, and immerse the fiber tow in water for 3 - 10 minutes, completing the immersion process;

[0037] After soaking, the first heat preservation plate and the second heat preservation plate extend out, raise the bearing frame to the upper half of the water bath oven, unfold the yarn rack, heat the heating tube, and start drying the fiber tow. After drying for 5 - 15 minutes, take it out to complete the drying process;

[0038] The dried fiber tow is put into a three-dimensional detector to detect the three-dimensional dimensions of the fiber tow. The main dimensions are: the total length of the tow, the coiled diameter of the tow, and the coiled spacing of the tow.

[0039] Advantages of the present invention:

[0040] The present invention is a device for automatically detecting the three-dimensional structure of fibers. The upper gripper, the gripper and the lower gripper are used to clamp the fiber tow, the fiber tow is cut by a pneumatic scissors, the rotating arm rotates to transfer the fiber tow to the clip, and then the clip with the fiber tow is placed into the bearing frame by lowering the hanging plate. After adding hot water for impregnation, it is heated and dried by the heating tube after impregnation, and after drying, it is taken to a fiber detector for detecting three-dimensional dimensions; the present invention has the beneficial effects of improving the testing efficiency of fibers and ensuring the consistency of detected three-dimensional dimensions. Description of the Drawings

[0041] Figure 1 is the front view of the yarn taking device in the present invention.

[0042] Figure 2 is the three-dimensional schematic diagram of the water bath oven in the present invention.

[0043] Figure 3 is the rear view of the water bath oven in the present invention.

[0044] Figure 4 is the schematic diagram of the upper gripper clamping the fiber tow in the present invention.

[0045] Figure 5 is the schematic diagram of the yarn rack in the present invention.

[0046] Figure 6 is the schematic diagram of the lower gripper clamping the fiber tow in the present invention.

[0047] Figure 7 is the schematic diagram of the internal structure of the bearing frame in the present invention.

[0048] Figure 8 is the schematic diagram of the yarn rack being placed into the bearing frame in the present invention.

[0049] Figure 9 is the schematic diagram of the first heat preservation board and the second heat preservation board covering the bearing frame in the present invention.

[0050] Figure 10 is the bottom view of the water bath oven in the present invention.

[0051] Figure 11 is the front view of the water bath oven in the present invention.

[0052] Figure 12 is the top view schematic diagram of the present invention.

[0053] 1. Yarn taking device 2. Yarn guiding frame 3. Upper gripper

[0054] 4. Clamping device 5. Rotating arm 6. Lower gripper

[0055] 7. First servo motor 8. Sliding seat 9. Sliding track

[0056] 10. Water bath oven 11. Bearing frame 12. Yarn rack

[0057] 13. Activity door 14. Moving seat 15. Wire winding frame

[0058] 16. Second servo motor 17. First telescopic cylinder 18. First heat preservation board

[0059] 19. Second heat preservation board 20. Second telescopic cylinder 21. Support plate

[0060] 22. Support base 23. Third telescopic cylinder 24. Heating tube

[0061] 101. Diversion port 102. First small motor 103. Second small motor

[0062] 111. Tooth disc 112. Driving gear 113. Large motor

[0063] 114. Driven gear 1101. Water outlet 121. Suspension plate

[0064] 122. Chuck 123. Chassis 124. Sliding column

[0065] 125. Suspension wire 126. Clip 1261. Upper clamping plate

[0066] 1262. Lower clamping plate 1263. Spring 181. First hooked wire

[0067] 191. Second hooked wire 61. Pneumatic scissors Detailed implementation manner

[0068] In order to clearly and completely describe the objectives, technical solutions of the present invention and make the advantages more clearly understood, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0069] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0070] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0071] For the purposes of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are set forth to provide a thorough understanding of the embodiments. However, it is obvious that, for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring these embodiments. Additionally, all embodiments can be used in combination with each other.

[0072] As Figures 1-3 shown, a device for automatically detecting the three-dimensional structure of fibers, characterized by comprising: a yarn taking device 1, the yarn taking device 1 having a yarn guiding frame 2, the yarn guiding frame 2 being arranged at the top of the yarn taking device 1 for guiding in fiber bundles; an upper gripper 3, the upper gripper 3 being arranged below the yarn guiding frame 2; a holder 4, the holder 4 being arranged below the upper gripper 3; a rotating arm 5, the rotating arm 5 being arranged below the holder 4; and a lower gripper 6, the lower gripper 6 being arranged on the rotating arm 5, the lower gripper 6 being used for gripping fiber bundles; a water bath oven 10, the water bath oven 10 being arranged directly opposite the yarn taking device 1, the water bath oven 10 having a carrying frame 11, the carrying frame 11 being arranged in the water bath oven 10; a yarn rack 12, the yarn rack 12 being arranged on the carrying frame 11; a heating tube 24, the heating tube 24 being arranged in the upper half of the water bath oven 10; a first heat preservation board 18, the first heat preservation board 18 being arranged on the right side of the water bath oven 10; and a second heat preservation board 19, the second heat preservation board 19 being arranged at the rear of the water bath oven 10.

[0073] The upper gripper 3, the holder 4 and the lower gripper 6 are used for clamping fiber bundles. The rotating arm 5 can rotate to rotate the fiber bundles clamped by the lower gripper 6 onto the yarn rack 12. The yarn rack 12 can clamp the fiber bundles on the lower gripper 6 and put them into the carrying frame 11. Hot water is introduced into the carrying frame 11. The first heat preservation board 18 and the second heat preservation board 19 can cover the carrying frame 11 for heat preservation, so that the fiber bundles are deformed by absorbing heat. After drying, the three-dimensional dimensions of the fiber bundles can be measured by detecting with a three-dimensional detector.

[0074] Specifically, as Figure 1As shown in the figure, a sliding track 9 is provided on one side of the yarn taking device 1. A first servo motor 7 is provided on one side of the rotating arm 5. The first servo motor 7 is connected to the rotating arm 5. A sliding seat 8 is provided at the bottom of the first servo motor 7. The sliding seat 8 is arranged on the sliding track 9. A pneumatic scissors is provided on the lower clamp 6. The pneumatic scissors is used to cut the fiber tow. The length of the cut fiber tow is about 10 cm.

[0075] Specifically, as Figure 3 and Figure 10 shown in the figure, a first snag wire 181 is connected to the first heat preservation board 18, and a second snag wire 191 is connected to the second heat preservation board 19. The bottoms of the first heat preservation board 18 and the second heat preservation board 19 are in a shape of sharp teeth. A first small motor 102 is provided below the first heat preservation board 18, and a second small motor 103 is provided below the second heat preservation board 19. Gears are provided at the transmission ends of the first small motor 102 and the second small motor 103 for driving the first heat preservation board 18 and the second heat preservation board 19.

[0076] Specifically, a water pipe is provided on the left side of the water bath oven 10 for pouring hot water. A second telescopic cylinder 20 is further provided at the rear of the water bath oven 10. The second telescopic cylinder 20 is located below the second heat preservation board 19. A plug is provided at the telescopic end of the second telescopic cylinder 20. An outlet is provided at the rear of the bearing frame 11. The plug is used to block the outlet 1101. A downwardly inclined diversion port 101 is further provided at the rear of the water bath oven 10. The diversion port 101 is located below the second telescopic cylinder 20.

[0077] Specifically, as Figure 5 shown in the figure, the yarn rack 12 has a hanging plate 121; a chassis 123, and the chassis 123 is arranged in the bearing frame 11; a chuck 122, and the chuck 122 is located between the hanging plate 121 and the chassis 123. A hanging wire 125 is provided on the chuck 122, and the hanging wire 125 is connected to the hanging plate 121; sliding columns 124, and there are three sliding columns 124 which pass through the hanging plate 121, the chassis 123 and the chuck 122.

[0078] Specifically, as Figure 6 shown in the figure, a plurality of clips 126 are provided at the bottom of the hanging plate 121. The clips 126 include a lower clamping plate 1262 and an upper clamping plate 1261. A spring 1263 is buckled on the lower clamping plate 1262 and the upper clamping plate 1261. The clips 126 are arranged obliquely upward for clamping the fiber tow.

[0079] Specifically, as Figure 7As shown in the figure, a toothed disc 111 is fixed at the bottom of the bearing frame 11. There are three driven gears 114 in the toothed disc 111. A driving gear 112 is arranged between the driven gears 114. The bottom of the sliding column 124 passes through the driven gears 114. A large motor 113 is arranged below the driving gear 112. The large motor 113 can drive the driving gear 112 to rotate. A support base 22 is further arranged below the bearing frame 11. The support base 22 is located on both sides of the bearing frame 11. A cylinder is arranged in the support base 22 for pushing the bearing frame 11. A support plate 21 is fixed at the bottom of the support base 22. A third telescopic cylinder 23 is arranged at the bottom of the support plate 21.

[0080] Specifically, as Figure 2 shown, a moving seat 14 is arranged at the top of the water bath oven 10. A first telescopic cylinder 17 is arranged at the rear of the water bath oven 10. The first telescopic cylinder 17 is connected to the moving seat 14. A wire winding frame 15 is arranged above the moving seat 14. The wire on the wire winding frame 15 is connected to the hanging disc 121. A second servo motor 16 is arranged on one side of the wire winding frame 15. The second servo motor 16 is used to drive the wire winding frame 15 to wind and unwind the wire.

[0081] Specifically, as Figure 6 shown, a pneumatic scissors 61 is arranged on the lower clamp 6. The pneumatic scissors 61 is in an "F" shape and is used for cutting fiber filaments.

[0082] A method for using an apparatus for automatically detecting the three-dimensional structure of fibers includes:

[0083] Start the yarn taking device 1. The fiber filament bundle is manually clamped on the yarn guiding frame 2. The upper clamp 3 swings to below the yarn guiding frame 2 to clamp the fiber filament bundle and then swings back. Then the lower clamp 6 moves up to between the yarn guiding frame 2 and the upper clamp 3 to clamp the fiber filament bundle and then moves down. At this time, the upper clamp 3 releases. The lower clamp 6 pulls the fiber filament bundle to a fixed position and then stops temporarily, completing the yarn taking process.

[0084] Start the first servo motor 7. The first servo motor 7 drives the rotating arm 5 to rotate, so that the lower clamp 6 pulls the fiber filament bundle into the yarn rack 12 and places it between the clips 126. Start the large motor 113. The large motor 113 drives the driving gear 112 to rotate, driving the driven gears 114 to rotate. The driven gears 114 drive the sliding column 124 to rotate, making the entire yarn rack 12 rotate, so that the clip 126 rotates into the cutting opening of the "F"-shaped pneumatic scissors 61. Then, the fiber filament bundle is clamped by using the gap between the lower clamping plate 1262 and the upper clamping plate 1261 and clamped under the elastic force of the spring 1263. Finally, start the pneumatic scissors 61 to cut the fiber filament bundle, and the rotating arm 5 rotates back to the original position, completing the clamping process.

[0085] The carrier frame 11 is retracted into the water bath oven 10 by the cylinder in the support base 22. The first telescopic cylinder 17 drives the moving base 14 to retract. Then, the second servo motor 16 is started to drive the wire reel to unwind the wire, so that the hanging plate 121 and the chuck 122 are lowered into the carrier frame 11. Then, the third telescopic cylinder 23 is started to move the carrier frame 11 and the support base 22 downward together to the lower half of the water bath oven 10. The water inlet pipe is inserted from the left side of the water bath oven 10, and hot water is introduced. Then, the first small motor 102 and the second small motor 103 are started successively to send the first heat preservation plate 18 and the second heat preservation plate 19 into the water bath oven 10 and cover the carrier frame 11. The fiber tow is immersed in water for 3 - 10 minutes to complete the soaking process;

[0086] After soaking, the first heat preservation plate 18 and the second heat preservation plate 19 extend out, the carrier frame 11 is raised to the upper half of the water bath oven 10, the yarn rack 12 is unfolded, the heating tube 24 is heated, and the fiber tow starts to be dried. After drying for 5 - 15 minutes, it is taken out to complete the drying process;

[0087] Combined Figure 12 As shown, after the dried fiber tow is taken out, the three - dimensional detector beside it detects its three - dimensional dimensions one by one. The main dimensions are: the total length of the tow, the coiling diameter of the tow, and the coiling pitch of the tow. These are all to imitate the finished product effect of the fiber fabric (that is: the finished product effect after being woven into cloth and undergoing a series of treatments such as boiling and dyeing) to confirm whether the fiber styles are consistent or can meet the customer's requirements.

[0088] Although the above - described illustrative specific embodiments of the present invention have been described to enable those skilled in the art to understand the present invention, the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention defined and determined by the appended claims, all inventions made using the concept of the present invention are within the scope of protection.

Claims

1. An apparatus for automatically detecting the three-dimensional structure of fibers, characterized in that, Comprising: A yarn taking device, the yarn taking device having A yarn guiding frame, the yarn guiding frame being arranged at the top of the yarn taking device for guiding in a fiber filament bundle; An upper gripper, the upper gripper being arranged below the yarn guiding frame; A gripper, the gripper being arranged below the upper gripper; A rotating arm, the rotating arm being arranged below the gripper; And A lower gripper, the lower gripper being arranged on the rotating arm, the lower gripper being used for gripping a fiber filament bundle; A water bath oven, the water bath oven being arranged directly opposite the yarn taking device, the water bath oven having a carrying frame, the carrying frame being arranged in the water bath oven; A yarn rack, the yarn rack being arranged on the carrying frame; A heating pipe, the heating pipe being arranged in the upper half of the water bath oven; A first heat preservation board, the first heat preservation board being arranged on the right side of the water bath oven; And A second heat preservation board, the second heat preservation board being arranged at the rear of the water bath oven; Wherein, the yarn rack has a hanging plate; A chassis, the chassis being arranged in the carrying frame; A chuck, the chuck being located between the hanging plate and the chassis, the chuck being provided with a hanging wire, the hanging wire connecting the hanging plate; Sliding columns, there are three sliding columns, and the sliding columns pass through the hanging plate, the chassis and the chuck; A toothed disc is fixed in the bottom of the carrying frame, three driven gears are arranged in the toothed disc, a driving gear is arranged between the driven gears, the bottom of the sliding column passes through the driven gear, a large motor is arranged below the driving gear, the large motor can drive the driving gear to rotate, a support seat is further arranged below the carrying frame, the support seat is located on both sides of the carrying frame, a cylinder is arranged in the support seat for pushing the carrying frame, a support plate is fixed at the bottom of the support seat, and a third telescopic cylinder is arranged at the bottom of the support plate; A moving seat is arranged at the top of the water bath oven, a first telescopic cylinder is arranged at the rear of the water bath oven, the first telescopic cylinder is connected to the moving seat, a wire winding frame is arranged above the moving seat, the wire on the wire winding frame is connected to the hanging plate, a second servo motor is arranged on one side of the wire winding frame, and the second servo motor is used for driving the wire winding frame to wind and unwind the wire.

2. An apparatus for automatically detecting the three-dimensional structure of fibers according to claim 1, wherein, A sliding track is arranged on one side of the yarn taking device, a first servo motor is arranged on one side of the rotating arm, the first servo motor is connected to the rotating arm, a sliding seat is arranged at the bottom of the first servo motor, the sliding seat is arranged on the sliding track, and a pneumatic scissors is arranged on the lower gripper, and the pneumatic scissors is used for cutting off the fiber filament bundle.

3. An apparatus for automatically detecting the three-dimensional structure of fibers according to claim 1, wherein, A first snagging wire is connected to the first heat preservation board, a second snagging wire is connected to the second heat preservation board, the bottoms of the first heat preservation board and the second heat preservation board are in a sharp tooth shape, a first small motor is arranged below the first heat preservation board, a second small motor is arranged below the second heat preservation board, and gears are arranged at the driving ends of the first small motor and the second small motor for driving the first heat preservation board and the second heat preservation board.

4. An apparatus for automatically detecting the three-dimensional structure of fibers according to claim 1, wherein, A water inlet pipe is provided on the left side of the water bath oven for pouring hot water. A second telescopic cylinder is also provided at the rear of the water bath oven. The second telescopic cylinder is located below the second heat preservation plate. A plug is provided at the telescopic end of the second telescopic cylinder. An outlet head is provided at the rear of the carrying frame. The plug is used to block the water outlet. A downwardly inclined diversion port is also provided at the rear of the water bath oven. The diversion port is located below the second telescopic cylinder.

5. An apparatus for automatically detecting the three-dimensional structure of fibers according to claim 1, wherein, A plurality of clips are provided at the bottom of the hanging tray. The clip includes a lower clamping plate and an upper clamping plate. A spring is buckled between the lower clamping plate and the upper clamping plate. The clip is arranged obliquely upward for clamping the fiber tow.

6. The device for automatically detecting the three-dimensional structure of fibers according to claim 1, wherein, A pneumatic scissor is provided on the lower gripper. The pneumatic scissor is in an "F" shape and is used for cutting the fiber filament.

7. A method for using the device for automatically detecting the three-dimensional structure of fibers according to claim 1, comprising: Starting the yarn taking device, the fiber tow is manually clamped on the yarn guiding frame. The upper gripper swings under the yarn guiding frame to clamp the fiber tow and then swings back. Then the lower gripper moves up between the yarn guiding frame and the upper gripper to clamp the fiber tow and then moves down. At this time, the upper gripper releases, and the lower gripper pulls the fiber tow to a fixed position and then stops, completing the yarn taking process; Starting the first servo motor, the first servo motor drives the rotating arm to rotate, so that the lower gripper pulls the fiber tow into the yarn rack and places it between the clips. Starting the large motor, the large motor drives the driving gear to rotate, driving the driven gear to rotate. The driven gear drives the sliding column to rotate, making the entire yarn rack rotate, so that the clip rotates into the cutting opening of the "F"-shaped pneumatic scissor. Then, the fiber tow is clamped by using the gap between the lower clamping plate and the upper clamping plate and clamped under the elastic force of the spring. Finally, starting the pneumatic scissor to cut the fiber tow, and the rotating arm returns to the original position, completing the clamping process; The carrying frame is retracted into the water bath oven by the cylinder in the support seat. The first telescopic cylinder drives the moving seat to retract. Then, starting the second servo motor, driving the wire reel to unwind, so that the hanging tray and the chuck are lowered into the carrying frame. Then, starting the third telescopic cylinder, the carrying frame and the support seat are lowered together to the lower half of the water bath oven. The water inlet pipe is inserted into the left side of the water bath oven, and hot water is introduced. Then, starting the first small motor and the second small motor successively, the first heat preservation plate and the second heat preservation plate are sent into the water bath oven and cover the carrying frame, and the fiber tow is immersed in water for 3 - 10 minutes, completing the soaking process; After soaking, the first heat preservation plate and the second heat preservation plate extend out, the carrying frame is raised to the upper half of the water bath oven, the yarn rack is unfolded, the heating tube is heated, and the fiber tow starts to be dried. After drying for 5 - 15 minutes, it is taken out, completing the drying process; The dried fiber tow is put into a three-dimensional detector to detect the three-dimensional dimensions of the fiber tow. The main dimensions are: the total length of the tow, the coiled diameter of the tow, and the coiled pitch of the tow.

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