Thickness detection equipment for filaments

By introducing rollers and scraping brushes to clean dust in the filament thickness detection equipment, and using protective covers and protective nets for dust protection, the problem of dust affecting detection accuracy and equipment life is solved, and efficient cleaning and dust prevention effects are achieved.

CN223425956UActive Publication Date: 2025-10-10JIANGSU 7 30 FIBER TECH CO LTD
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Patent Information

Application Number
CN202422930031.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-10-10
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Existing thickness detection equipment lacks effective dust removal and dust prevention measures, resulting in dust adhesion affecting detection accuracy and equipment service life.

Method used

A filament thickness detection device is designed, which includes a mounting frame, a roller, a scraping brush, a protective cover and a protective net. The roller and the scraping brush are used to clean dust, and the protective cover and the protective net are used for dust protection when not in use.

Benefits of technology

Effectively clean dust, improve detection accuracy, reduce cleaning difficulty, and extend equipment service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a filament thickness detection device comprising a detector, the detector is provided with an installation frame, the installation frame is provided with an installation rod, the installation rod is in sliding connection with the installation frame, the installation rod is sleeved with a roller, the installation frame is internally provided with two groups of symmetrically distributed screw rods, and the two groups of symmetrically distributed screw rods are connected with the installation frame. A mounting seat is fixedly mounted on the detector, a scraping brush is arranged on the mounting seat, the scraping brush is in sliding connection with the mounting seat, the scraping brush is arranged corresponding to the roller, a screw rod is arranged in the mounting seat, a mounting frame is fixedly mounted on the detector, and two groups of symmetrically distributed first adjusting rods are arranged in the mounting frame; second adjusting rods are arranged in the two groups of first adjusting rods, and the arranged mounting frame is matched with the mounting rods, the roller and the scraping brush to clean impurities such as dust in a detection area on the detector, so that the influence of the impurities and the dust on the fibril detection precision is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of thickness detection, in particular to a filament thickness detection device. Background Art

[0002] Filaments are filamentous structures formed by the polymerization of cellulose molecular bundles. Filaments cannot directly constitute fabrics, but filaments are the basic units of yarns, and fabrics are textiles made of yarn materials. These yarns can be made of natural fibers or synthetic fibers. Natural fibers include cotton fibers, wool fibers, silk fibers, etc., while synthetic fibers include polyester, nylon, etc. These fibers are processed into yarns through textile technology, and then woven or sewn into fabrics from yarns. The thickness of fabrics and filaments can usually be tested by a fabric thickness meter.

[0003] In the existing technology, thickness detection equipment does not have good dust and dirt removal measures during use. Some dust or fibers adhere to the detection equipment, which will affect the thickness detection results of the filament, resulting in errors in thickness detection. In addition, the existing detection equipment does not have good dust protection measures when not in use. The long-term accumulation and adhesion of dust make the equipment difficult to clean during use, affecting the ease of use and service life of the detection equipment. Utility Model Content

[0004] The purpose of the present invention is to provide a filament thickness detection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filament thickness detection device, comprising a detector, a mounting frame is installed on the detector, a mounting rod is provided on the mounting frame, the mounting rod is slidably connected to the mounting frame, a roller is sleeved on the mounting rod, two groups of symmetrically distributed screw rods are provided in the mounting frame, a mounting seat is fixedly installed on the detector, a scraping brush is provided on the mounting seat, the scraping brush is slidably connected to the mounting seat, the scraping brush is correspondingly arranged to the roller, a screw is provided in the mounting seat, a mounting frame is fixedly installed on the detector, two groups of symmetrically distributed first adjusting rods are provided in the mounting frame, and both groups of the first adjusting rods are provided with screw rods. There is a second adjusting rod, and a movable frame is installed on the detector, and the movable frame is fixedly connected to the two groups of second adjusting rods respectively. A protective cover is provided between the movable frame and the detector, and the two sides of the protective cover are fixedly connected to the detector and the movable frame respectively. A fixed seat is fixedly installed on the detector, and the fixed seat is arranged corresponding to the movable frame. A storage rod is provided in the movable frame, and a protective net is sleeved on the storage rod. A movable rod is fixedly installed on the end of the protective net away from the storage rod, and the movable rod is slidably connected to the movable frame, and the movable rod is movably engaged with the fixed seat. Two groups of symmetrically distributed card racks are provided in the fixed seat, and both groups of the card racks are movably engaged with the movable rod.

[0006] As a further preferred embodiment of the present technical solution, the two ends of the two groups of screw rods respectively pass through the mounting frame and are rotatably connected to the mounting frame through bearings, the two groups of screw rods respectively pass through the two ends of the mounting rod and are threadedly connected to the mounting rod, the left ends of the two groups of screw rods are sleeved with a first synchronous wheel, a first synchronous belt is provided in the mounting frame, the first synchronous belt is respectively connected to the two groups of first synchronous wheels for transmission, the two ends of the screw rod respectively pass through the mounting seat and are rotatably connected to the mounting seat through bearings, the screw rod passes through the scraper brush and is threadedly connected to the scraper brush.

[0007] As a further preferred embodiment of the present technical solution, both ends of the storage rod respectively pass through the moving frame and are rotatably connected to the moving frame. Two groups of symmetrically distributed coil springs are sleeved on the storage rod, and the inner and outer ends of the coil springs are respectively fixedly connected to the storage rod and the moving frame.

[0008] As a further preferred embodiment of the present technical solution, two groups of symmetrically distributed sliding rods are provided in the movable frame, the movable rod is slidably sleeved with the two groups of sliding rods, a first spring is sleeved on the sliding rod, and the two ends of the first spring are fixedly connected to the movable rod and the movable frame respectively.

[0009] As a further preferred embodiment of the present technical solution, the two groups of the card frames are respectively slidably connected to the fixed seat, the card frame is sleeved with a second spring, the card frame is sleeved with a stop block, the two ends of the second spring are respectively fixedly connected to the stop block and the fixed seat, the two groups of the card frames are fixedly installed with racks, a handle is provided in the fixed seat, a gear is sleeved on the handle, the gears are respectively meshed with the two groups of racks, the handle is rotatably connected to the fixed seat, the handle is sleeved with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the gear and the fixed seat.

[0010] As a further preferred embodiment of the present technical solution, two groups of symmetrically distributed threaded rods are provided in the mounting frame, a threaded tube is provided in the first adjusting rod, the left ends of the two groups of threaded rods pass through the mounting frame and are rotatably connected to the mounting frame through bearings, the right ends of the two groups of threaded rods respectively pass through the two groups of first adjusting rods and are threadedly connected to the two groups of first adjusting rods respectively, the left ends of the two groups of threaded rods are sleeved with second synchronous wheels, a second synchronous belt is provided in the mounting frame, the second synchronous belt is respectively transmission-connected to the two groups of second synchronous wheels, the threaded tube passes through the corresponding first adjusting rod and is rotatably connected to the first adjusting rod, and the right end of the threaded tube passes through the corresponding second adjusting frame and is threadedly connected to the second adjusting frame.

[0011] As a further preferred embodiment of the present technical solution, the threaded rod is provided with two groups of symmetrically distributed limit grooves, and the threaded tube is provided with two groups of symmetrically distributed limit blocks. The limit blocks are arranged corresponding to the limit grooves, and the threaded tube is slidably connected to the threaded rod through the limit blocks.

[0012] The utility model provides a filament thickness detection device, which has the following beneficial effects:

[0013] (1) The utility model realizes cleaning of dust and other impurities in the detection area of ​​the detector by means of the provided installation frame in conjunction with the installation rod, the roller and the scraper brush, thereby avoiding the influence of impurities and dust on the accuracy of filament detection; before using the detection equipment, first turn on the motor in the installation frame to drive the rotation of the screw rod, realize the synchronous rotation of the two sets of screw rods under the action of the first synchronous belt and the first synchronous wheel, and make the installation rod slide in the installation frame under the limiting action of the installation frame, and drive the roller brush to pass through the operating area of ​​the detector to clean the dust and other impurities attached to the detector, and at the same time, after the installation rod moves to the top of the mounting seat, start the motor in the mounting seat to drive the rotation of the screw rod, and make the scraper brush slide in the mounting seat under the limiting action of the mounting seat to clean the roller in contact with it, thereby maintaining the efficiency of the roller cleaning work.

[0014] (2) The utility model realizes dustproof protection for the entire detection equipment through the installation frame provided, the movable frame, the protective cover and the protective net. When the detection equipment is not in use, the entire detector is covered by the movable frame, the protective cover and the protective net to avoid the accumulation of dust and other impurities, reduce the difficulty of cleaning the detector for the staff, and effectively improve the filament detection accuracy and the service life of the detector; when the detection equipment is not in use, the motor in the installation frame is started to drive the threaded rod to rotate, and the first adjustment rod slides in the installation frame under the limit action of the installation frame, and the threaded rod is screwed in the limit groove and the limit block. The corrugated tube rotates synchronously with the threaded rod, and the second adjusting rod slides inside the first adjusting rod under the limiting action of the first adjusting rod, thereby driving the movable frame to slide synchronously, and connecting the protective cover to the detector, until the movable frame moves above the fixed seat, pulling the movable rod to drive the protective net to move, and turning the handle to drive the gear to rotate, so that the two sets of racks respectively drive the two sets of card frames to slide to both sides, and the movable rod is clamped in the fixed seat and the handle is released. Under the action of the second spring and the torsion spring, the two sets of card frames are clamped with the movable rod to fix the movable rod, and the protective net and the protective cover are used to protect the detector from dust and impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a structural diagram of the installation frame of the utility model;

[0017] Figure 3 This is a structural diagram of the mobile frame of the present utility model;

[0018] Figure 4 For the utility model Figure 3 -A magnified view of the structure;

[0019] Figure 5 This is a schematic structural diagram of the mobile rod of the present utility model;

[0020] Figure 6 For the utility model Figure 5 -A magnified view of the structure at point B;

[0021] In the figure: 1. detector; 2. mounting frame; 3. mounting rod; 4. roller; 5. screw rod; 6. first synchronous wheel; 7. first synchronous belt; 8. mounting seat; 9. scraper; 10. screw rod; 11. mounting frame; 12. first adjusting rod; 13. second adjusting rod; 14. threaded rod; 15. threaded tube; 16. limit groove; 17. limit block; 18. second synchronous wheel; 19. second synchronous belt; 20. moving frame; 21. protective cover; 22. fixing seat; 23. storage rod; 24. coil spring; 25. protective net; 26. slide rod; 27. first spring; 28. moving rod; 29. ​​bracket; 30. second spring; 31. block; 32. rack; 33. handle; 34. gear; 35. torsion spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a technical solution: Figure 1 、 Figure 2 and Figure 3As shown, in this embodiment, a kind of filament thickness detection equipment, including detector 1, detector 1 is equipped with mounting frame 2, mounting frame 2 is equipped with mounting rod 3, mounting rod 3 is slidably connected with mounting frame 2, mounting rod 3 is sleeved with roller 4, two groups of lead screws 5 being symmetrically distributed are equipped in mounting frame 2, fixed mounting seat 8 is installed on detector 1, scraper 9 is equipped on mounting seat 8, scraper 9 is slidably connected with mounting seat 8, scraper 9 is correspondingly arranged with roller 4, screw rod 10 is equipped in mounting seat 8, fixed mounting bracket 11 is installed on detector 1, two groups of first adjusting rods 12 being symmetrically distributed are equipped in mounting bracket 11, second adjusting rod 13 is equipped in the two groups of first adjusting rods 12, moving frame 20 is installed on detector 1, moving frame 20 is respectively fixedly connected with the two groups of second adjusting rods 13, protective cover 21 is equipped between moving frame 20 and detector 1, the two sides of protective cover 21 are respectively fixedly connected with detector 1 and moving frame 20, fixed seat 22 is fixedly installed on detector 1, fixed seat 22 is correspondingly arranged with moving frame 20, storage rod 23 is equipped in moving frame 20, protective net 25 is sleeved on storage rod 23, moving rod 28 is fixedly installed on the end of protective net 25 away from storage rod 23, moving rod 28 is slidably connected with moving frame 20, moving rod 28 is movably clamped with fixed seat 22, two groups of clamping frames 29 being symmetrically distributed are equipped in fixed seat 22, the two groups of clamping frames 29 are movably clamped with moving rod 28, the two ends of the two groups of lead screws 5 are respectively penetrated through mounting frame 2 and are rotatably connected with mounting frame 2 by bearing, the two ends of the two groups of lead screws 5 are respectively penetrated through mounting rod 3 and are respectively threadedly connected with mounting rod 3, first synchronous pulley 6 is sleeved on the left end of the two groups of lead screws 5, first synchronous belt 7 is equipped in mounting frame 2, first synchronous belt 7 is respectively drivingly connected with the two groups of first synchronous pulleys 6, the two ends of screw rod 10 are respectively penetrated through mounting seat 8 and are rotatably connected with mounting seat 8 by bearing, screw rod 10 is penetrated through scraper 9 and is threadedly connected with scraper 9.

[0024] The dust and other impurities in the detection area on detector 1 are cleaned by mounting frame 2 cooperating with mounting rod 3, roller 4 and scraper 9, so that the influence of impurities and dust on filament detection precision is avoided; before using the detection equipment, first, the rotation of lead screw 5 is driven by the motor in mounting frame 2, synchronous rotation of the two groups of lead screws 5 is realized under the action of first synchronous belt 7 and first synchronous pulley 6, and mounting rod 3 slides in mounting frame 2 under the limiting action of mounting frame 2, mounting rod 3 drives roller 4 to brush over the operation area of detector 1, and the dust and other impurities attached to detector 1 are cleaned, at the same time, after mounting rod 3 moves to above mounting seat 8, the rotation of screw rod 10 is driven by the motor in mounting seat 8, and scraper 9 slides in mounting seat 8 under the limiting action of mounting seat 8, roller 4 in contact with scraper 9 is cleaned, and the cleaning efficiency of roller 4 is maintained.

[0025] As Figure 4 , Figure 5 and Figure 6As shown, the two ends of the receiving rod 23 respectively penetrate the moving frame 20 and are rotationally connected with the moving frame 20, two groups of symmetrical distribution coil springs 24 are sleeved on the receiving rod 23, the inner and outer ends of the coil spring 24 are respectively fixedly connected with the receiving rod 23 and the moving frame 20, two groups of symmetrical distribution slide rods 26 are arranged in the moving frame 20, a moving rod 28 is slidably sleeved with the two groups of slide rods 26, a first spring 27 is sleeved on the slide rod 26, the two ends of the first spring 27 are respectively fixedly connected with the moving rod 28 and the moving frame 20, two groups of clamping frames 29 are respectively slidably connected with the fixed seat 22, a second spring 30 is sleeved on the clamping frame 29, a stop block 31 is sleeved on the clamping frame 29, the two ends of the second spring 30 are respectively fixedly connected with the stop block 31 and the fixed seat 22, a rack 32 is fixedly installed on each of the two groups of clamping frames 29, a handle 33 is arranged in the fixed seat 22, a gear 34 is sleeved on the handle 33, the gear 34 is meshingly connected with the two groups of racks 32, the handle 33 is rotationally connected with the fixed seat 22, a torsion spring 35 is sleeved on the handle 33, the two ends of the torsion spring 35 are respectively fixedly connected with the gear 34 and the fixed seat 22, two groups of symmetrical distribution threaded rods 14 are arranged in the mounting frame 11, a threaded tube 15 is arranged in the first adjusting rod 12, the left ends of the two groups of threaded rods 14 respectively penetrate the mounting frame 11 and are rotationally connected with the mounting frame 11 through bearings, the right ends of the two groups of threaded rods 14 respectively penetrate the two groups of first adjusting rods 12 and are threadedly connected with the two groups of first adjusting rods 12, a second synchronous wheel 18 is sleeved on the left end of each of the two groups of threaded rods 14, a second synchronous belt 19 is arranged in the mounting frame 11, the second synchronous belt 19 is drivingly connected with the two groups of second synchronous wheels 18, the threaded tube 15 penetrates the corresponding first adjusting rod 12 and is rotationally connected with the first adjusting rod 12, the right end of the threaded tube 15 penetrates the corresponding second adjusting frame and is threadedly connected with the second adjusting frame, two groups of symmetrical distribution limiting grooves 16 are formed in the threaded rod 14, two groups of symmetrical distribution limiting blocks 17 are arranged on the threaded tube 15, the limiting blocks 17 are correspondingly arranged with the limiting grooves 16, and the threaded tube 15 is slidably sleeved with the threaded rod 14 through the limiting blocks 17.

[0026] The mounting frame 11 cooperates with the moving frame 20, the protective cover 21 and the protective net 25 to achieve dust protection for the entire detection device, when the detection device is not used, the detection instrument 1 is covered by the moving frame 20, the protective cover 21 and the protective net 25, so that the accumulation of dust and impurities is avoided, the cleaning difficulty of the detection instrument 1 by the worker is reduced, and the detection precision and the service life of the detection instrument 1 are effectively improved.

[0027] The utility model provides a filament thickness detection device, and its specific working principle is as follows: before using the detection device, first turn on the motor in the mounting frame 2 to drive the rotation of the screw rod 5, and realize the synchronous rotation of the two sets of screw rods 5 under the action of the first synchronous belt 7 and the first synchronous wheel 6, and make the mounting rod 3 slide in the mounting frame 2 under the limit action of the mounting frame 2, and the mounting rod 3 drives the roller 4 to brush across the operating area of ​​the detector 1 to clean the dust and other impurities attached to the detector 1, and at the same time, after the mounting rod 3 moves to the top of the mounting seat 8, the motor in the mounting seat 8 is started to drive the rotation of the screw rod 10, and under the limit action of the mounting seat 8, the scraping brush 9 is made to slide in the mounting seat 8 to clean the roller 4 in contact with it, thereby maintaining the efficiency of the cleaning work of the roller 4. When the detection device is not used, the motor in the mounting frame 11 is started to drive the threaded rod 14 to rotate, and the limit of the mounting frame 11 is set. Under the action of the first positioning rod 12, the first adjusting rod 12 slides in the mounting bracket 11, and the threaded tube 15 rotates synchronously with the threaded rod 14 under the action of the limit groove 16 and the limit block 17. Under the limiting action of the first adjusting rod 12, the second adjusting rod 13 slides in the first adjusting rod 12, thereby driving the moving frame 20 to slide synchronously, and connecting the protective cover 21 to the detector 1. Until the moving frame 20 moves above the fixed seat 22, the moving rod 28 is pulled to drive the protective net 25 to move, and the handle 33 is turned to drive the gear 34 to rotate, so that the two sets of racks 32 respectively drive the two sets of brackets 29 to slide to both sides, and the moving rod 28 is clamped in the fixed seat 22. After releasing the handle 33, under the action of the second spring 30 and the torsion spring 35, the two sets of brackets 29 are clamped with the moving rod 28 to fix the moving rod 28, and the protective net 25 and the protective cover 21 are used to protect the detector 1 from dust and impurities.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filament thickness detection device, comprising a detector (1), characterized in that: The detector (1) is provided with a mounting frame (2), a mounting rod (3) is provided on the mounting frame (2), the mounting rod (3) is slidably connected to the mounting frame (2), a roller (4) is sleeved on the mounting rod (3), two groups of symmetrically distributed screw rods (5) are provided in the mounting frame (2), a mounting seat (8) is fixedly installed on the detector (1), a scraping brush (9) is provided on the mounting seat (8), the scraping brush (9) is slidably connected to the mounting seat (8), the scraping brush (9) and the roller (4) are arranged correspondingly, a screw rod (10) is provided in the mounting seat (8), a mounting frame (11) is fixedly installed on the detector (1), two groups of symmetrically distributed first adjustment rods (12) are provided in the mounting frame (11), and a second adjustment rod (13) is provided in each of the two groups of the first adjustment rods (12), a moving frame (20) is installed on the moving frame (2 0) are fixedly connected to two groups of second adjustment rods (13) respectively, a protective cover (21) is provided between the movable frame (20) and the detector (1), and both sides of the protective cover (21) are fixedly connected to the detector (1) and the movable frame (20) respectively, a fixed seat (22) is fixedly installed on the detector (1), and the fixed seat (22) is arranged correspondingly to the movable frame (20), a receiving rod (23) is provided in the movable frame (20), a protective net (25) is sleeved on the receiving rod (23), and a movable rod (28) is fixedly installed at one end of the protective net (25) away from the receiving rod (23), the movable rod (28) is slidably connected to the movable frame (20), and the movable rod (28) is movably connected to the fixed seat (22), and two groups of symmetrically distributed brackets (29) are provided in the fixed seat (22), and both groups of brackets (29) are movably connected to the movable rod (28).

2. The filament thickness detection device according to claim 1, characterized in that: The two ends of the two groups of screw rods (5) respectively pass through the mounting frame (2) and are rotatably connected to the mounting frame (2) through bearings. The two groups of screw rods (5) respectively pass through the two ends of the mounting rod (3) and are respectively threadedly connected to the mounting rod (3). The left ends of the two groups of screw rods (5) are sleeved with a first synchronous wheel (6). A first synchronous belt (7) is provided in the mounting frame (2). The first synchronous belt (7) is respectively transmission-connected to the two groups of first synchronous wheels (6). The two ends of the screw rod (10) respectively pass through the mounting seat (8) and are rotatably connected to the mounting seat (8) through bearings. The screw rod (10) passes through the scraper brush (9) and is threadedly connected to the scraper brush (9).

3. The filament thickness detection device according to claim 1, characterized in that: The two ends of the storage rod (23) respectively pass through the moving frame (20) and are rotatably connected to the moving frame (20); two groups of symmetrically distributed coil springs (24) are sleeved on the storage rod (23); the inner and outer ends of the coil springs (24) are respectively fixedly connected to the storage rod (23) and the moving frame (20).

4. The filament thickness detection device according to claim 1, characterized in that: Two groups of symmetrically distributed sliding rods (26) are provided in the moving frame (20), the moving rod (28) is slidably sleeved with the two groups of sliding rods (26), a first spring (27) is sleeved on the sliding rod (26), and the two ends of the first spring (27) are fixedly connected to the moving rod (28) and the moving frame (20) respectively.

5. The filament thickness detection device according to claim 1, characterized in that: The two groups of the card frames (29) are respectively slidably connected to the fixed seat (22); a second spring (30) is sleeved on the card frame (29); a stopper (31) is sleeved on the card frame (29); two ends of the second spring (30) are respectively fixedly connected to the stopper (31) and the fixed seat (22); a rack (32) is fixedly installed on the two groups of the card frames (29); a handle (33) is provided in the fixed seat (22); a gear (34) is sleeved on the handle (33); the gear (34) is respectively meshed with the two groups of racks (32); the handle (33) is rotatably connected to the fixed seat (22); a torsion spring (35) is sleeved on the handle (33); two ends of the torsion spring (35) are respectively fixedly connected to the gear (34) and the fixed seat (22).

6. The filament thickness detection device according to claim 1, characterized in that: Two groups of symmetrically distributed threaded rods (14) are provided in the mounting frame (11), a threaded tube (15) is provided in the first adjusting rod (12), the left ends of the two groups of threaded rods (14) pass through the mounting frame (11) and are rotatably connected to the mounting frame (11) through bearings, the right ends of the two groups of threaded rods (14) respectively pass through the two groups of first adjusting rods (12) and are respectively threadedly connected to the two groups of first adjusting rods (12), the left ends of the two groups of threaded rods (14) are sleeved with second synchronous wheels (18), a second synchronous belt (19) is provided in the mounting frame (11), the second synchronous belt (19) is respectively transmission-connected to the two groups of second synchronous wheels (18), the threaded tube (15) passes through the corresponding first adjusting rod (12) and is rotatably connected to the first adjusting rod (12), and the right end of the threaded tube (15) passes through the corresponding second adjusting frame and is threadedly connected to the second adjusting frame.

7. The filament thickness detection device according to claim 6, characterized in that: The threaded rod (14) is provided with two groups of symmetrically distributed limiting grooves (16), and the threaded tube (15) is provided with two groups of symmetrically distributed limiting blocks (17). The limiting blocks (17) are arranged corresponding to the limiting grooves (16), and the threaded tube (15) is slidably sleeved with the threaded rod (14) through the limiting blocks (17).