Sampling device for ceramic fiber bundle silk thread density test

Abstract

The utility model belongs to the technical field of silk thread density testing, and particularly relates to a ceramic fiber bundle silk thread density testing and sampling device which comprises a workbench, a first supporting arm is fixed to the left side of the upper surface of the workbench, and a pay-off roller is fixedly connected to the first supporting arm; by arranging the clamping mechanism, the cutting assembly, the take-up roller and the sampling roller, the limitation that only a wire harness at the starting end position in a wire coil can be sampled in a traditional device is solved, the final sampling test data is made to be matched with the overall actual data, and by arranging the leveling mechanism and the tensioning mechanism, the sampling accuracy is improved. Winding and leveling are conducted on the wire harness through the first leveling roller, the second leveling roller and the two sets of clamping blocks, the possibility that the wire harness deflects and is disordered in the winding process is reduced, the whole wire harness is distributed in a flat shape through the arrangement of the lower pressing plate, and the phenomena of winding or knotting, dislocation and the like cannot happen to the wire harness in the winding or sampling process.

Description

Technical Field

[0001] The utility model belongs to the technical field of yarn density testing, in particular to a sampling device for testing the yarn density of ceramic fiber bundles. Background Art

[0002] Ceramic fiber (SiCF) reinforced ceramic matrix composites have excellent high-temperature mechanical properties and are therefore widely used as high-temperature structural components, such as rocket tubes, missile nose cones, wing leading edges, and brake pads. As a new type of semiconductor material, SiCF has become the most important semiconductor material for manufacturing short-wavelength optoelectronic devices, high-temperature devices, radiation-resistant devices, and high-power, high-frequency electronic devices due to its excellent physical, chemical, and electrical properties. SiCF materials have huge application potential in high-temperature, high-frequency, high-power, high-voltage optoelectronics and radiation resistance. During the production process of ceramic fiber harnesses, it is often necessary to sample and inspect the yarn density to ensure the factory quality of the ceramic fiber harnesses.

[0003] For example, Chinese patent publication number CN217980804U discloses a sampling device for testing the linear density of ceramic fiber bundles, comprising a frame on which a discharge device is provided, a winding device is provided at the discharge end of the discharge device, and a cutting device is provided between the discharge device and the winding device.

[0004] This patent has some shortcomings when used. For example, when sampling ceramic fibers, the device in this patent can only sample the ceramic fibers at the head end of the ceramic fiber coil, which is one-sided and causes the final test data to deviate from the actual sample data. In addition, when sampling, the device in this patent cannot guarantee the flatness of the entire wire bundle, and the wire bundle is easily disordered, and even entangled and knotted during the winding process. In view of this, we propose a sampling device for testing the linear density of ceramic fiber bundles. Utility Model Content

[0005] The purpose of the present invention is to provide a sampling device for testing the linear density of ceramic fiber bundles, so as to solve the problems raised in the above-mentioned background technology.

[0006] In view of this, the utility model provides a sampling device for testing the linear density of ceramic fiber bundles, comprising:

[0007] A workbench, a support arm 1 is fixed at the left position of the upper surface of the workbench, a wire-releasing roller is fixedly connected to the support arm 1, two support arms 2 fixed to the workbench are provided on the right side of the support arm 1, a traction mechanism for pulling the wire harness is provided between the two support arms 2, a leveling mechanism for keeping the wire harness flat is provided on the right side of the support arm 2, a mounting bracket fixed to the upper surface of the workbench is provided on the right side of the leveling mechanism, and a clamping mechanism for fixing the wire harness, a cutting assembly for cutting the wire harness, and a tensioning mechanism for tensioning the wire harness are provided on the lower surface of the mounting bracket from left to right;

[0008] Support arm three, the support arm three is fixedly mounted on the upper surface of the workbench at a position close to the right side of the mounting frame, a take-up roller is rotatably mounted on the support arm three, a motor three is fixedly mounted on the outer wall of the support arm three, and an output shaft of the motor three passes through the outer wall of the support arm three and is coaxially connected to the take-up roller;

[0009] Support arm four is fixedly installed on the upper surface of the workbench at the right side of support arm three, and a sampling roller is rotatably installed on the support arm four. A motor four is fixedly installed on the outer wall of the support arm four, and the output shaft of the motor four passes through the outer wall of the support arm four and is coaxially connected to the sampling roller.

[0010] In the above technical solution, further, the traction mechanism includes:

[0011] Two traction rollers are symmetrically arranged and are both rotatably installed between two support arms 2, one of the support arms 2 is provided with a rectangular groove, a gear is rotatably installed in the rectangular groove, a connecting shaft is coaxially connected to the inner side of the gear, and the other end of the connecting shaft passes through the inner wall of the groove and is coaxially connected to the corresponding traction roller, a motor 1 is fixed to the outer wall of one of the support arms 2, and the output shaft of the motor 1 passes through the outer wall of the support arm 2 and extends into the groove and is coaxially connected to one of the gears.

[0012] In the above technical solution, further, the leveling mechanism includes:

[0013] Two support rods are symmetrically arranged, and the bottom ends of the support rods are fixedly installed on the upper surface of the workbench. A vertically distributed leveling roller 1 and a leveling roller 2 are rotatably installed between the two support rods. Two symmetrically arranged rotating blocks are arranged between the leveling roller 1 and the leveling roller 2, and the two rotating blocks are respectively rotatably connected to the inner side walls of the support rod on the corresponding side, and a clamping block is symmetrically rotatably connected to the inner side of the rotating block.

[0014] In the above technical solution, further, the clamping mechanism includes:

[0015] The upper clamping plate is slidably installed at the left position inside the mounting frame. A lower clamping plate fixed to the inner wall of the mounting frame is provided directly below the upper clamping plate. A support plate fixed to the inner wall of the mounting frame is provided directly above the upper clamping plate. The upper surface of the support plate is symmetrically equipped with cylinders, and the telescopic rod ends of the cylinders penetrate through the upper surface of the support plate and extend downward to be fixed to the upper surface of the upper clamping plate.

[0016] In the above technical solution, further, the cutting assembly includes:

[0017] An electric slide rail is fixedly installed at the central position of the lower surface of the mounting frame. A sliding sleeve is slidably installed on the electric slide rail. The lower surface of the sliding sleeve is fixed with an electric push rod. The telescopic end of the electric push rod is fixed with a U-shaped block. A cutting knife is arranged inside the U-shaped block. Multiple suction nozzles fixed to the inner wall of the U-shaped block are arranged on one side of the cutting knife. A pressing plate is arranged on the other side of the cutting knife. A threaded knob is arranged on the side of the U-shaped block away from the suction nozzles. The threaded knob penetrates through the outer wall of the U-shaped block and extends into the inner cavity of the U-shaped block to be rotatably connected with the pressing plate. The threaded knob is in threaded cooperation with the U-shaped block.

[0018] In the above technical solution, further, the tensioning mechanism includes:

[0019] A lower pressing plate is slidably installed at the right position inside the mounting frame. Sliding grooves are symmetrically formed in the inner side wall of the mounting frame and near both ends of the lower pressing plate. A threaded rod is rotatably installed in one of the sliding grooves. A threaded block threadedly connected to the threaded rod and slidably connected to the sliding groove is fixed to the lower pressing plate. A second motor is fixed to the upper surface of the mounting frame. The output shaft of the second motor penetrates through the upper surface of the mounting frame and extends into the sliding groove to be coaxially connected with the threaded rod.

[0020] In the above technical solution, further, the tensioning mechanism further includes:

[0021] A sliding rod is fixedly installed in the other sliding groove. A sliding block slidably connected to the sliding rod and slidably matched with the sliding groove is fixed to the lower pressing plate.

[0022] The beneficial effects of the present utility model are:

[0023] 1. The sampling device for testing the density of ceramic fiber bundles is provided with a clamping mechanism, a cutting assembly, a take-up roller and a sampling roller. The sampling roller is used to take up the bundle and sample it, and the cutting assembly is used to cut the bundle. The bundle at the non-sampling position is taken up by the take-up roller. When it is necessary to sample a certain section of the ceramic fiber bundle roll, it is only necessary to cut the taken-up bundle again by the cutting assembly and wind the bundle to be sampled around the sampling roller again to achieve sampling. The provision of the take-up roller and the sampling roller solves the limitation of the traditional device that only the bundle at the starting end of the roll can be sampled, so that the final sampled test data is consistent with the overall actual data. The take-up roller collects and integrates the excess bundles, thereby reducing the waste of raw materials.

[0024] 2. The sampling device for testing the density of ceramic fiber bundles is provided with a flattening mechanism and a tensioning mechanism. The wire harness is wound and flattened by flattening rollers 1 and 2 and two sets of clamps, thereby reducing the possibility of the wire harness being skewed or disordered during the winding process. A lower pressure plate is provided and the wire harness is squeezed by the lower pressure plate, so that the entire wire harness is always in a tensioned state in the device. With the action of the flattening mechanism, the entire wire harness is distributed in a flat shape, so that the wire harness will not be entangled, knotted or misplaced during the winding or sampling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a structural diagram of the traction mechanism in the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the leveling mechanism in the present utility model;

[0028] Figure 4 This is a schematic structural diagram of the clamping mechanism in the present utility model;

[0029] Figure 5 This is a schematic structural diagram of the cutting assembly in the present invention;

[0030] Figure 6 This is a schematic structural diagram of the shaped block and cutting knife in the utility model;

[0031] Figure 7 It is a structural diagram of the tensioning mechanism in the utility model.

[0032] The marks in the figure are:

[0033] 1. Workbench; 2. Support arm 1; 3. Pay-off roller; 4. Support arm 2; 5. Pull-on roller; 6. Gear; 7. Connecting shaft; 8. Motor 1; 9. Support rod; 10. Leveling roller 1; 11. Leveling roller 2; 12. Rotating block; 13. Clamping block; 14. Mounting frame; 15. Upper clamping plate; 16. Lower clamping plate; 17. Support plate; 18. Cylinder; 19. Electric slide rail; 20. Slide sleeve; 21. Electric push rod; 22. Nipple block; 23. Cutting knife; 24. Suction nozzle; 25. Extrusion plate; 26. Threaded knob; 27. Lower pressure plate; 28. Slide; 29. ​​Threaded rod; 30. Threaded block; 31. Motor 2; 32. Support arm 3; 33. Take-up roller; 34. Motor 3; 35. Support arm 4; 36. Sampling roller; 37. Motor 4. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0035] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0036] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0037] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0038] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0039] Example:

[0040] See also Figure 1 - Figure 7 As shown, this embodiment provides a sampling device for testing the linear density of ceramic fiber bundles, comprising:

[0041] A workbench 1, a support arm 2 is fixed at the left position of the upper surface of the workbench 1, a pay-off roller 3 is fixedly connected to the support arm 2, two support arms 2 4 fixed to the workbench 1 are provided on the right side of the support arm 2, a traction mechanism for pulling the wire harness is provided between the two support arms 2 4, a leveling mechanism for keeping the wire harness flat is provided on the right side of the support arm 2 4, a mounting frame 14 fixed to the upper surface of the workbench 1 is provided on the right side of the leveling mechanism, and a clamping mechanism for fixing the wire harness, a cutting assembly for cutting the wire harness, and a tensioning mechanism for tensioning the wire harness are provided on the lower surface of the mounting frame 14 from left to right;

[0042] Support arm three 32, support arm three 32 is fixedly mounted on the upper surface of the workbench 1 at a position on the right side of the mounting frame 14, a take-up roller 33 is rotatably mounted on the support arm three 32, a motor three 34 is fixedly mounted on the outer wall of the support arm three 32, and the output shaft of the motor three 34 passes through the outer wall of the support arm three 32 and is coaxially connected to the take-up roller 33;

[0043] A fourth support arm 35 is fixedly mounted on the upper surface of the workbench 1 at a position to the right of the third support arm 32. A sampling roller 36 is rotatably mounted on the fourth support arm 35. A fourth motor 37 is fixedly mounted on the outer wall of the fourth support arm 35. The output shaft of the fourth motor 37 passes through the outer wall of the fourth support arm 35 and is coaxially connected to the sampling roller 36.

[0044] In this embodiment, the traction mechanism includes:

[0045] Two traction rollers 5 are symmetrically arranged and are both rotatably mounted between the two support arms 4. A rectangular groove is opened in one of the support arms 4, and a gear 6 is rotatably mounted in the rectangular groove. A connecting shaft 7 is coaxially connected to the inner side of the gear 6, and the other end of the connecting shaft 7 passes through the inner wall of the groove and is coaxially connected to the corresponding traction roller 5. A motor 8 is fixed to the outer wall of one of the support arms 4, and the output shaft of the motor 8 passes through the outer wall of the support arm 4 and extends into the groove and is coaxially connected to one of the gears 6.

[0046] In this embodiment, the leveling mechanism includes:

[0047] Two support rods 9 are symmetrically arranged, and the bottom ends of the support rods 9 are fixedly mounted on the upper surface of the workbench 1. A vertically distributed leveling roller 10 and a second leveling roller 11 are rotatably mounted between the two support rods 9. Two symmetrically arranged rotating blocks 12 are arranged between the first leveling roller 10 and the second leveling roller 11. The two rotating blocks 12 are respectively rotatably connected to the inner side walls of the corresponding side support rods 9, and a clamping block 13 is symmetrically rotatably connected to the inner side of the rotating block 12;

[0048] In this embodiment, the clamping mechanism includes:

[0049] An upper splint 15 is slidably mounted on the left side of the mounting frame 14. A lower splint 16 fixed to the inner wall of the mounting frame 14 is provided directly below the upper splint 15. A support plate 17 fixed to the inner wall of the mounting frame 14 is provided directly above the upper splint 15. A cylinder 18 is symmetrically mounted on the upper surface of the support plate 17, and the telescopic rod end of the cylinder 18 passes through the upper surface of the support plate 17 and extends downward to be fixed to the upper surface of the upper splint 15.

[0050] In this embodiment, the cutting assembly includes:

[0051] An electric slide rail 19 is fixedly mounted at the center of the lower surface of the mounting frame 14. A sliding sleeve 20 is slidably mounted on the electric slide rail 19. An electric push rod 21 is fixed to the lower surface of the sliding sleeve 20. A convex block 22 in a convex shape is fixed to the telescopic end of the electric push rod 21. A cutting knife 23 is provided in the convex block 22. A plurality of suction nozzles 24 fixed to the inner wall of the convex block 22 are provided on one side of the cutting knife 23. An extrusion plate 25 is provided on the other side of the cutting knife 23. A threaded knob 26 is provided on the side of the convex block 22 away from the suction nozzle 24. The threaded knob 26 passes through the outer wall of the convex block 22 and extends to the inner cavity of the convex block 22 and is rotatably connected to the extrusion plate 25. The threaded knob 26 is threadedly engaged with the convex block 22.

[0052] In this embodiment, the tensioning mechanism includes:

[0053] The lower pressing plate 27 is slidably mounted on the right side of the mounting frame 14. Slide grooves 28 are symmetrically provided on the inner side wall of the mounting frame 14 and near the two ends of the lower pressing plate 27. A threaded rod 29 is rotatably mounted in one of the slide grooves 28. A threaded block 30 slidably connected to the slide groove 28 is threadedly connected to the threaded rod 29, and the threaded block 30 is fixed to the lower pressing plate 27. A second motor 31 is fixed to the upper surface of the mounting frame 14, and the output shaft of the second motor 31 passes through the upper surface of the mounting frame 14 and extends into the slide groove 28 and is coaxially connected to the threaded rod 29.

[0054] In this embodiment, the tensioning mechanism further includes:

[0055] The slide rod is fixedly installed in another slide groove 28. The slide rod is slidably connected to a sliding block that slides with the slide groove 28. The sliding block is fixed to the lower pressing plate 27.

[0056] The working principle of this device is as follows:

[0057] When in use, the ceramic fiber harness is wound on the pay-off roller 3, and then one end of the harness is passed between the two traction rollers 5 in the traction mechanism, and then the harness is passed through the upper leveling roller 10 in the leveling mechanism, and then the harness is passed between the two sets of clamping blocks 13 at the bottom, and passed through the other side of the leveling roller 2 11 in a staggered manner. The harness is wound in an S shape between the leveling roller 10, the leveling roller 2 11 and the two sets of clamping blocks 13 between the leveling mechanisms, and then the harness is passed between the upper clamping plate 15 and the lower clamping plate 16 on the clamping mechanism, and then the harness is passed from under the lower pressing plate 27;

[0058] When sampling, the wire harness passes under the take-up roller 33 and is wound around the sampling roller 36. At this time, the motor 37 is started, and the output shaft of the motor 37 rotates and drives the sampling roller 36 to rotate. The sampling roller 36 reels the wire harness for sampling. When sampling is completed, the cutting assembly is started. In the initial state, the cutting knife 23 in the cutting assembly is located at one end of the mounting frame 14. When working, the telescopic rod of the electric push rod 21 moves downward, and the blade of the cutting knife 23 contacts the wire harness, and the electric slide rail 19 is started. At this time, the sliding sleeve 20 slides along the electric slide rail 19 and drives the cutting knife 23 to move synchronously. The cutting knife 23 cuts the wire harness when it moves.

[0059] After cutting the wire harness, one end of the wire harness can be passed under the lower pressing plate 27 again, and the wire harness is wound on the wire take-up roller 33. At this time, the motor 34 is started, the output shaft of the motor 34 rotates and drives the wire take-up roller 33 to rotate, and the wire take-up roller 33 reels the excess wire harness;

[0060] Furthermore, when it is necessary to sample the wire bundle at the middle position of the coil on the pay-off roller 3, it is only necessary to start the cutting assembly again, cut the wire bundle by the cutting assembly, and then wind the other end of the wire bundle around the sampling roller 36 again, and repeat the above operation;

[0061] In the above process, the excess unsampled portion of the coil on the pay-off roller 3 is wound and integrated by the take-up roller 33;

[0062] It is worth adding that during the winding or sampling process, the traction mechanism works, at this time the output shaft of the motor 8 rotates and drives the gear 6 below to rotate, please refer to the attached manual Figure 2 , then the lower gear 6 drives the upper gear 6 to rotate synchronously, and the two gears 6 drive the corresponding traction rollers 5 to rotate through the corresponding connecting shafts 7, thereby completing the traction of the wire harness;

[0063] It is worth adding that, during the winding or sampling process, the tensioning mechanism works. At this time, the motor 2 31 is started, the output shaft of the motor 2 31 rotates and drives the threaded rod 29 to rotate. Under the action of the thread force, the threaded block 30 slides downward along the slide groove 28, and the threaded block 30 and the sliding block drive the lower pressing plate 27 to move downward synchronously. The lower surface of the lower pressing plate 27 contacts the wire harness and squeezes the wire harness downward, so that the entire wire harness is always in a tensioned state in the device. With the action of the flattening mechanism, the entire wire harness is distributed in a flat shape, so that the wire harness will not be entangled, knotted, or misplaced during the winding or sampling process.

[0064] It is worth adding that before the wire harness is cut, the clamping mechanism will work and clamp the wire harness. The process is as follows: the telescopic rods of the two cylinders 18 move downward and push the upper clamping plate 15 to slide downward, so that the upper clamping plate 15 and the lower clamping plate 16 form an effective clamping constraint on the wire harness, avoiding the rebound phenomenon of the wire harness on the left side when the wire harness is in a tensioned state when the wire harness is cut, reducing the unnecessary need for rethreading and improving work efficiency;

[0065] When replacing the cutting blade 23 in the cutting assembly, the threaded knob 26 is turned outward. When the threaded knob 26 moves outward, the squeezing plate 25 is driven to move outward. At this time, the squeezing plate 25 and the multiple suction nozzles 24 no longer clamp and constrain the cutting blade 23. Then the replaced cutting blade 23 is reset and installed again, and the threaded knob 26 is turned inward. The squeezing plate 25 moves inward under the action of the threaded knob 26 and squeezes the cutting blade 23. With the cooperation of the suction nozzle 24, the squeezing plate 25 and the suction nozzle 24 fix and constrain the cutting blade 23 again.

[0066] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A sampling device for testing the linear density of ceramic fiber bundles, characterized in that: include: A workbench (1), wherein a support arm 1 (2) is fixed at a left position on the upper surface of the workbench (1), a wire-releasing roller (3) is fixedly connected to the support arm 1 (2), two support arms 2 (4) fixed to the workbench (1) are provided on the right side of the support arm 1 (2), a traction mechanism for traction of the wire harness is provided between the two support arms 2 (4), a leveling mechanism for keeping the wire harness flat is provided on the right side of the support arm 2 (4), a mounting frame (14) fixed to the upper surface of the workbench (1) is provided on the right side of the leveling mechanism, and a clamping mechanism for fixing the wire harness, a cutting assembly for cutting the wire harness, and a tensioning mechanism for tensioning the wire harness are provided on the lower surface of the mounting frame (14) from left to right; Support arm three (32), the support arm three (32) is fixedly mounted on the upper surface of the workbench (1) at a position close to the right side of the mounting frame (14), a take-up roller (33) is rotatably mounted on the support arm three (32), a motor three (34) is fixedly mounted on the outer wall of the support arm three (32), and an output shaft of the motor three (34) passes through the outer wall of the support arm three (32) and is coaxially connected to the take-up roller (33); Support arm four (35), the support arm four (35) is fixedly mounted on the upper surface of the workbench (1) at a position close to the right side of support arm three (32), a sampling roller (36) is rotatably mounted on the support arm four (35), a motor four (37) is fixedly mounted on the outer wall of the support arm four (35), and an output shaft of the motor four (37) passes through the outer wall of the support arm four (35) and is coaxially connected to the sampling roller (36).

2. A sampling device for testing the linear density of ceramic fiber bundles according to claim 1, characterized in that: The traction mechanism comprises: Two traction rollers (5), the two traction rollers (5) are symmetrically arranged and are both rotatably mounted between the two support arms (4), one of the support arms (4) is provided with a rectangular groove, a gear (6) is rotatably mounted in the rectangular groove, the inner side of the gear (6) is coaxially connected to a connecting shaft (7), and the other end of the connecting shaft (7) passes through the inner wall of the groove and is coaxially connected to the corresponding traction roller (5), a motor (8) is fixed to the outer wall of one of the support arms (4), and the output shaft of the motor (8) passes through the outer wall of the support arm (4) and extends into the groove to be coaxially connected to one of the gears (6).

3. The sampling device for testing the linear density of ceramic fiber bundles according to claim 1, characterized in that: The leveling mechanism comprises: Two support rods (9) are symmetrically arranged, and the bottom ends of the support rods (9) are fixedly installed on the upper surface of the workbench (1); a first leveling roller (10) and a second leveling roller (11) are rotatably installed between the two support rods (9); two symmetrically arranged rotating blocks (12) are arranged between the first leveling roller (10) and the second leveling roller (11); and the two rotating blocks (12) are respectively rotatably connected to the inner side wall of the corresponding support rod (9); and a clamping block (13) is symmetrically rotatably connected to the inner side of the rotating block (12).

4. The sampling device for testing the linear density of ceramic fiber bundles according to claim 1, characterized in that: The clamping mechanism comprises: The upper clamping plate (15) is slidably installed at a position near the left side inside the mounting frame (14). A lower clamping plate (16) fixed to the inner wall of the mounting frame (14) is provided directly below the upper clamping plate (15). A support plate (17) fixed to the inner wall of the mounting frame (14) is provided directly above the upper clamping plate (15). Cylinders (18) are symmetrically installed on the upper surface of the support plate (17), and the telescopic rod ends of the cylinders (18) penetrate through the upper surface of the support plate (17) and extend downward to be fixed to the upper surface of the upper clamping plate (15).

5. The sampling device for testing the linear density of ceramic fiber bundles according to claim 1, characterized in that: The cutting assembly includes: An electric slide rail (19) is fixedly installed at the central position on the lower surface of the mounting frame (14). A sliding sleeve (20) is slidably installed on the electric slide rail (19). An electric push rod (21) is fixed to the lower surface of the sliding sleeve (20). A U-shaped block (22) in the shape of a U is fixed to the telescopic end of the electric push rod (21). A cutting knife (23) is arranged inside the U-shaped block (22). A plurality of suction nozzles (24) fixed to the inner wall of the U-shaped block (22) are arranged on one side of the cutting knife (23). An extrusion plate (25) is arranged on the other side of the cutting knife (23). A threaded knob (26) is arranged on one side of the U-shaped block (22) away from the suction nozzle (24). The threaded knob (26) penetrates through the outer wall of the U-shaped block (22) and extends into the inner cavity of the U-shaped block (22) to be rotatably connected to the extrusion plate (25). The threaded knob (26) is in threaded cooperation with the U-shaped block (22).

6. The sampling device for testing the linear density of ceramic fiber bundles according to claim 1, characterized in that: The tensioning mechanism includes: A lower pressing plate (27) is slidably installed at a position near the right side inside the mounting frame (14). Chutes (28) are symmetrically formed at positions near both ends of the lower pressing plate (27) on the inner side wall of the mounting frame (14). A threaded rod (29) is rotatably installed in one of the chutes (28). A threaded block (30) threadedly connected to the threaded rod (29) and slidably connected to the chute (28) is fixed to the lower pressing plate (27). A second motor (31) is fixed to the upper surface of the mounting frame (14), and the output shaft of the second motor (31) penetrates through the upper surface of the mounting frame (14) and extends into the chute (28) to be coaxially connected to the threaded rod (29).

7. A sampling device for testing the linear density of ceramic fiber bundles according to claim 6, characterized in that: The tensioning mechanism further includes: A sliding rod is fixedly installed in the other chute (28). A sliding block slidably connected to the sliding rod and slidably cooperating with the chute (28) is fixed to the lower pressing plate (27).

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