A glass fiber three-proofing cloth coating thickness monitoring device convenient for adaptive adjustment

Abstract

The present application relates to the related technical field of cloth coating thickness detection, in particular to a glass fiber three-proof cloth coating thickness monitoring device convenient to adapt to adjustment, including hydraulic mechanism, main support, upper mobile structure, lower mobile structure, upper detection mechanism and lower detection mechanism, the hydraulic mechanism is fixedly installed on the installation support of the side of cloth conveying system, the main support is a half frame type structure, and the telescopic part of the main support and the hydraulic mechanism is fixedly connected; by setting the upper detection mechanism and the lower detection mechanism into a combination of main seat, force arm, force wheel and thickness detector, the upper detection mechanism and the lower detection mechanism move towards each other, the glass fiber three-proof cloth to be detected is clamped by the force wheel, and the glass fiber three-proof cloth to be detected is smoothed under the action of the upper detection mechanism and the lower detection mechanism of the force arm, thereby improving the detection accuracy of the thickness detector on the coating thickness on the glass fiber three-proof cloth.

Description

Technical Field

[0001] This invention relates to the technical field of fabric coating thickness detection, specifically to a fiberglass three-proof fabric coating thickness monitoring device that is easy to adapt and adjust. Background Technology

[0002] Fiberglass three-proof cloth is an industrial protective material that uses fiberglass cloth as the base material and coats it with a functional coating through a special process to achieve "three-proof" performance. Its core features are high temperature resistance and strong protection, and it is widely used in industrial scenarios.

[0003] Chinese patent document CN207231441U discloses an automatic coating thickness detection device for coated fabric. The device includes a frame, a detection platform, and conveyor chains on both sides of the detection platform. Clamping devices are installed on the conveyor chains to clamp both sides of the coated fabric and convey it forward. A mounting frame is installed above the detection platform. A row of detectors is installed on the mounting frame near the end of the mounting frame where the coated fabric is input to the detection platform. These detectors detect the coating thickness and cover the width of the coated fabric. Pigment spraying devices are installed on the mounting frame at the other end opposite the detectors. Each pigment spraying device corresponds to one of the detectors, and the corresponding pigment spraying device and detector are located on the same straight line in the direction of fabric conveying. The device also includes a controller for controlling the chain conveying speed, receiving detector detection signals, and controlling the spraying timing of the pigment spraying devices. The clamping devices are either clamps for holding the fabric edges or a row of needles.

[0004] However, the above-mentioned scheme does not include a suitable flattening mechanism, which leads to insufficient stability of the fabric during the testing process, thus affecting the accuracy of the coating thickness detection. Therefore, this invention proposes a fiberglass three-proof fabric coating thickness monitoring device that is easy to adapt and adjust to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a fiberglass three-proof cloth coating thickness monitoring device that is easy to adapt and adjust, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fiberglass three-proof cloth coating thickness monitoring device that is easy to adapt and adjust, comprising:

[0007] A hydraulic mechanism, which is fixedly installed on a mounting bracket on the side of the fabric conveying system;

[0008] The main support has a semi-frame structure and is fixedly connected to the telescopic part of the hydraulic mechanism.

[0009] An upper movable structure is installed on the upper side crossbeam of the main support;

[0010] A lower movable structure is installed on the lower side crossbeam of the main support;

[0011] A higher-level detection mechanism, wherein the position of the higher-level detection mechanism is adjusted by a higher-level moving structure;

[0012] A lower-level detection mechanism, wherein the lower-level detection mechanism is position-adjusted via a lower-level moving structure;

[0013] The upper and lower detection mechanisms are used to detect the coating thickness on the upper and lower sides of the fiberglass three-proof fabric, respectively, and the fiberglass three-proof fabric to be tested is conveyed by the roller system on the fabric conveying system.

[0014] Preferably, the upper moving structure includes a guide rod bracket, a moving seat, a transmission screw, and a telescopic electric cylinder. The guide rod bracket is fixedly connected to the upper side crossbeam of the main bracket. The guide rod bracket has a semi-frame structure, and guide rods are fixedly installed between the guide rod brackets. The moving seat has guide rod holes and screw holes, and the moving seat is movably mounted on the guide rods. The transmission screw is rotatably mounted on the guide rod bracket and is driven by a servo motor on the guide rod bracket. The moving seat is driven by the transmission screw. The seat of the telescopic electric cylinder is fixedly mounted on the moving seat. The lower moving structure has the same structure as the upper moving structure, and the upper and lower moving structures are symmetrically arranged and move in opposite directions.

[0015] Preferably, the upper detection mechanism includes a main body, a lever arm, a force-bearing wheel, and a thickness gauge. The main body is fixedly connected to the telescopic rod of the telescopic electric cylinder, and a mounting groove is provided on the main body. A transition hole is provided on the side wall of the mounting groove, and a locking groove is provided on the top wall of the mounting groove. A rotating hole is provided at one end of the lever arm, and the rotating hole is correspondingly arranged with the transition hole. A rotating rod is connected between the rotating hole and the transition hole. A reset spring is welded to the upper side of the lever arm. The reset spring is V-shaped, and the outer end of the reset spring is engaged in the locking groove. A force-bearing wheel mounting groove is provided at the end of the lever arm. The force-bearing wheel rotates in the force-bearing wheel mounting groove by mounting bolts and mounting nuts. A positioning groove is provided on the main body, and the thickness gauge is fixedly installed in the positioning groove.

[0016] Preferably, the lower detection mechanism and the upper detection mechanism have the same structure and are symmetrically arranged. During the actual detection process, the upper and lower detection mechanisms are moved to the position to be detected by a hydraulic mechanism and a servo motor. Then, by driving the telescopic electric cylinder, the upper and lower detection mechanisms move towards each other, so that the force-bearing wheels on the upper and lower detection mechanisms clamp the fiberglass three-proof cloth to be detected. Under the outward expansion of the lever arm, the fiberglass three-proof cloth to be detected is smoothed, thereby ensuring the accuracy of the thickness measuring instrument in detecting the coating thickness on the fiberglass three-proof cloth.

[0017] Preferably, the main body has a positioning plate groove, a connecting rod groove, and a force-bearing component groove. The force-bearing component groove is connected to the positioning plate groove through the connecting rod groove. The adapter hole is connected to the force-bearing component groove, and a spring groove is formed at the port of the adapter hole facing the mounting groove. A connecting plate is integrally formed on the middle side wall of the rotating rod. A primary return spring and a secondary return spring are fixedly connected to both sides of the connecting plate, respectively. A limit ring is installed at the port of the spring groove. The rotating rod is movably disposed in the center hole of the limit ring. The end of the primary return spring abuts against the bottom of the spring groove, and the end of the secondary return spring abuts against the limit ring.

[0018] Preferably, the two ends of the rotating rod are integrally formed with a primary hemisphere and a secondary hemisphere, respectively. When the primary return spring and the secondary return spring are in the reset state, the rotating rod is completely retracted into the adapter hole and the spring groove. At this time, the primary hemisphere protrudes outside the adapter hole, and the secondary hemisphere protrudes outside the spring groove.

[0019] Preferably, the bottom of the positioning plate groove is provided with a threaded hole, and a positioning plate is fixedly installed in the positioning plate groove by positioning bolts. The positioning plate is provided with a clearance groove, and the detection head of the thickness measuring instrument passes through the clearance groove. A connecting rod is integrally formed on the side of the positioning plate, and a force-bearing member is integrally formed on the outer end of the connecting rod. When the first-stage hemisphere abuts against the force-bearing member, the end of the rotating rod extends into the rotating hole, and at this time, the rotating rod does not detach from the transition hole.

[0020] Preferably, the outer wall of the limiting ring is provided with an elastic element groove, and a movable plate is movably installed in the elastic element groove. The inner side of the movable plate is connected to the bottom of the elastic element groove through an elastic element. The outer side of the movable plate is integrally formed with a limiting ball. A limiting groove is provided on the side wall of the spring groove. The limiting groove is an annular groove with a semi-circular cross-section. When the limiting ring is actually installed, the limiting ball is embedded in the limiting groove.

[0021] Preferably, a nut groove is provided on one side of the lever arm, and the mounting nut is embedded in the nut groove. A movable groove is provided on the other side of the lever arm, and a top support spring and a movable seat are movably disposed in the movable groove. The two sides of the top support spring are fixedly glued to the movable seat and the bottom of the movable groove, respectively. A limit post is integrally formed on the outer side of the movable seat. A limit post groove is provided on the inner side of the nut of the mounting bolt. The cross-section of the limit post groove is round, and a circle is provided around the circumference of the limit post groove. When the mounting bolt is actually installed and the top support spring is in the reset state, the limit post is embedded in the limit post groove.

[0022] Preferably, a friction ring positioning groove is provided on the side wall of the force-bearing wheel mounting groove, and a friction ring is fixedly installed in the friction ring positioning groove. The friction ring is a rubber ring and is abutted against the side wall of the force-bearing wheel. A rubber layer is integrally formed on the outer side wall of the force-bearing wheel, and anti-slip protrusions are integrally formed on the outer side wall of the rubber layer. The anti-slip protrusions are hemispherical protrusions, and multiple sets of anti-slip protrusions are provided on the rubber layer.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. By setting up a fiberglass three-proof cloth coating thickness monitoring device composed of a hydraulic mechanism, main support, upper moving structure, lower moving structure, upper detection mechanism and lower detection mechanism, and setting both the upper detection mechanism and the lower detection mechanism to be composed of a main body, lever arm, force wheel and thickness measuring instrument, the upper detection mechanism and the lower detection mechanism move towards each other, thereby clamping the fiberglass three-proof cloth to be tested through the force wheel, and smoothing the fiberglass three-proof cloth to be tested under the action of the lever arm upper detection mechanism and the lower detection mechanism, thereby improving the accuracy of the thickness measuring instrument in detecting the coating thickness of the fiberglass three-proof cloth;

[0025] 2. By creating a positioning plate groove, a connecting rod groove, and a force-bearing component groove on the main body, and forming a connecting plate on the rotating rod, a primary return spring and a secondary return spring are respectively installed on both sides of the connecting plate on the rotating rod, and a primary hemisphere and a secondary hemisphere are respectively formed at both ends of the rotating rod. A positioning plate is fixedly installed in the positioning plate groove by positioning bolts. The positioning plate has a clearance groove, and a force-bearing component is set on the connecting rod at the edge of the positioning plate. When the primary return spring and the secondary return spring are in the reset state, the rotating rod is fully retracted into the transition hole and the spring groove, and the primary hemisphere protrudes outside the transition hole, and the secondary hemisphere protrudes outside the spring groove. Thus, through the resistance of the primary hemisphere and the force-bearing component, all rotating rods are allowed to extend into the corresponding rotating holes simultaneously, thereby achieving rapid and synchronous disassembly and assembly of all lever arms, which facilitates daily inspection and maintenance of the structure. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a schematic diagram showing the positions of the upper and lower detection mechanisms of the present invention;

[0028] Figure 3 This is a half-sectional view of the main body of the present invention in the vertical direction;

[0029] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0030] Figure 5 This is a schematic diagram of the upper-level detection mechanism of the present invention;

[0031] Figure 6 This is a horizontal half-sectional view of the main body of the present invention;

[0032] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point B;

[0033] Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point C;

[0034] Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point D;

[0035] Figure 10 This is a schematic diagram of the main body structure of the present invention;

[0036] Figure 11 This is a schematic diagram of the rotating rod structure of the present invention;

[0037] Figure 12 This is a schematic diagram of the positioning plate structure of the present invention;

[0038] Figure 13 This is a half-sectional view of the lever arm of the present invention;

[0039] Figure 14 for Figure 13 Enlarged schematic diagram of the structure at point E in the middle;

[0040] Figure 15 for Figure 14 Enlarged schematic diagram of the structure at point F;

[0041] Figure 16 This is a schematic diagram of the mounting bolt structure of the present invention.

[0042] In the diagram: 1. Hydraulic mechanism; 2. Main support; 3. Upper moving structure; 4. Lower moving structure; 5. Upper detection mechanism; 6. Lower detection mechanism; 7. Fiberglass three-proof cloth; 8. Roller system; 9. Guide rod support; 10. Moving seat; 11. Transmission screw; 12. Telescopic electric cylinder; 13. Guide rod; 14. Main seat body; 15. Lever arm; 16. Force-bearing wheel; 17. Thickness gauge; 18. Mounting groove; 19. Adapter hole; 20. Engaging groove; 21. Rotary hole; 22. Reset spring; 23. Positioning groove; 24. Positioning plate groove; 25. Connecting rod groove; 26. Force-bearing component groove; 27. Spring groove; 28. Rotating rod. 29. Connecting plate; 30. Primary return spring; 31. Secondary return spring; 32. Limiting ring; 33. Primary hemisphere; 34. Secondary hemisphere; 35. Threaded hole; 36. Positioning bolt; 37. Positioning plate; 38. Connecting rod; 39. Force-bearing component; 40. Clearance groove; 41. Force-bearing wheel mounting groove; 42. Mounting bolt; 43. Mounting nut; 44. Rubber layer; 45. Anti-slip protrusion; 47. Movable groove; 48. Top support spring; 49. Movable seat; 50. Limiting post; 51. Limiting post groove; 53. Elastic component groove; 54. Elastic component; 55. Movable plate; 56. Limiting ball; 57. Friction ring. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figures 1-16 The present invention provides the following three preferred embodiments:

[0045] Example 1: A fiberglass three-proof fabric coating thickness monitoring device that is easy to adapt and adjust includes a hydraulic mechanism 1, a main support 2, an upper moving structure 3, a lower moving structure 4, an upper detection mechanism 5, and a lower detection mechanism 6. The hydraulic mechanism 1 is fixedly installed on the mounting bracket on the side of the fabric conveying system. The main support 2 has a semi-frame structure and is fixedly connected to the telescopic part of the hydraulic mechanism 1. The upper moving structure 3 is installed on the upper side crossbeam of the main support 2, and the lower moving structure 4 is installed on the lower side crossbeam of the main support 2. The upper detection mechanism 5 is adjusted in position through the upper moving structure 3, and the lower detection mechanism 6 is adjusted in position through the lower moving structure 4. The upper detection mechanism 5 and the lower detection mechanism 6 are used to detect the coating thickness on the upper and lower sides of the fiberglass three-proof fabric 7, respectively. The fiberglass three-proof fabric 7 to be tested is conveyed by the roller system 8 on the fabric conveying system.

[0046] The upper moving structure 3 includes a guide rod bracket 9, a moving seat 10, a transmission screw 11, and a telescopic electric cylinder 12. The guide rod bracket 9 is fixedly connected to the upper side crossbeam of the main support 2. The guide rod bracket 9 has a semi-frame structure, and a guide rod 13 is fixedly installed between the guide rod brackets 9. The moving seat 10 has a guide rod hole and a screw hole. The moving seat 10 is movably mounted on the guide rod 13. The transmission screw 11 is rotatably mounted on the guide rod bracket 9 and is driven by a servo motor on the guide rod bracket 9. The moving seat 10 is driven by the transmission screw 11. The seat of the telescopic electric cylinder 12 is fixedly mounted on the moving seat 10. The lower moving structure 4 has the same structure as the upper moving structure 3, and the upper moving structure 3 and the lower moving structure 4 are symmetrically arranged and move in opposite directions.

[0047] The upper-level detection mechanism 5 includes a main body 14, a lever arm 15, a force-bearing wheel 16, and a thickness gauge 17. The main body 14 is fixedly connected to the telescopic rod of the telescopic electric cylinder 12, and a mounting groove 18 is provided on the main body 14. A transition hole 19 is provided on the side wall of the mounting groove 18, and a locking groove 20 is provided on the top wall of the mounting groove 18. A rotating hole 21 is provided at one end of the lever arm 15, and the rotating hole 21 is correspondingly provided with the transition hole 19. A rotating rod 28 is connected between the two. A reset spring 22 is welded to the upper side of the lever arm 15. The reset spring 22 is V-shaped and its outer end is engaged in the engagement groove 20. A force-bearing wheel mounting groove 41 is opened at the end of the lever arm 15. The force-bearing wheel 16 rotates in the force-bearing wheel mounting groove 41 through the mounting bolt 42 and the mounting nut 43. A positioning groove 23 is opened on the main body 14. The thickness measuring instrument 17 is fixedly installed in the positioning groove 23.

[0048] The lower detection mechanism 6 has the same structure as the upper detection mechanism 5, and the lower detection mechanism 6 and the upper detection mechanism 5 are symmetrically arranged. In the actual detection process, the upper detection mechanism 5 and the lower detection mechanism 6 are moved to the position to be detected by the hydraulic mechanism 1 and the servo motor. Then, by driving the telescopic electric cylinder 12, the upper detection mechanism 5 and the lower detection mechanism 6 move towards each other, so that the force-bearing wheels 16 on the upper detection mechanism 5 and the lower detection mechanism 6 clamp the fiberglass three-proof cloth 7 to be detected, and smooth the fiberglass three-proof cloth 7 to be detected under the outward expansion action of the lever arm 15.

[0049] By setting up a fiberglass three-proof cloth coating thickness monitoring device composed of a hydraulic mechanism 1, a main support 2, an upper moving structure 3, a lower moving structure 4, an upper detection mechanism 5, and a lower detection mechanism 6, and by setting the upper detection mechanism 5 and the lower detection mechanism 6 to be composed of a main seat 14, a lever arm 15, a force-bearing wheel 16, and a thickness measuring instrument 17, the upper detection mechanism 5 and the lower detection mechanism 6 move towards each other, thereby clamping the fiberglass three-proof cloth 7 to be tested through the force-bearing wheel 16, and flattening the fiberglass three-proof cloth 7 under the action of the lever arm 15 and the upper detection mechanism 5 and the lower detection mechanism 6 moving towards each other, the accuracy of the thickness measuring instrument 17 in detecting the coating thickness of the fiberglass three-proof cloth 7 is improved.

[0050] Example 2: Based on Example 1, the main body 14 is provided with a positioning plate groove 24, a connecting rod groove 25, and a force-bearing component groove 26. The force-bearing component groove 26 is connected to the positioning plate groove 24 through the connecting rod groove 25. The adapter hole 19 is connected to the force-bearing component groove 26, and a spring groove 27 is provided at the port of the adapter hole 19 facing the mounting groove 18. A connecting plate 29 is integrally formed on the middle side wall of the rotating rod 28. A primary return spring 30 and a secondary return spring 31 are fixedly connected to both sides of the connecting plate 29, respectively. A limit ring 3 is installed at the port of the spring groove 27. 2. The rotating rod 28 is movably disposed in the center hole of the limiting ring 32. The end of the first-stage return spring 30 abuts against the bottom of the spring groove 27, and the end of the second-stage return spring 31 abuts against the limiting ring 32. The two ends of the rotating rod 28 are integrally formed with a first-stage hemisphere 33 and a second-stage hemisphere 34, respectively. When the first-stage return spring 30 and the second-stage return spring 31 are in the reset state, the rotating rod 28 is completely retracted into the adapter hole 19 and the spring groove 27. At this time, the first-stage hemisphere 33 protrudes outside the adapter hole 19, and the second-stage hemisphere 34 protrudes outside the spring groove 27.

[0051] The bottom of the positioning plate groove 24 is provided with a threaded hole 35. A positioning plate 37 is fixedly installed in the positioning plate groove 24 by a positioning bolt 36. A clearance groove 40 is provided on the positioning plate 37. The detection head of the thickness measuring instrument 17 passes through the clearance groove 40. A connecting rod 38 is integrally formed on the side of the positioning plate 37. A force-bearing member 39 is integrally formed on the outer end of the connecting rod 38. When the first-stage hemisphere 33 abuts against the force-bearing member 39, the end of the rotating rod 28 extends into the rotating hole 21. At this time, the rotating rod 28 does not detach from the adapter hole 19. By opening the positioning plate groove 24, the connecting rod groove 25, and the force-bearing member groove 26 on the main seat 14, and forming the connecting plate 29 on the rotating rod 28, and respectively setting a first-stage return spring 30 and a second-stage return spring 31 on both sides of the connecting plate 29 on the rotating rod 28, a first-stage return spring 30 and a second-stage return spring 31 are provided on the rotating rod 28. The two ends of the rod 28 are respectively formed into a first-stage hemisphere 33 and a second-stage hemisphere 34, and a positioning plate 37 is fixedly installed in the positioning plate groove 24 by positioning bolts 36. The positioning plate 37 has a clearance groove 40, and a force-bearing component 39 is set on the connecting rod 38 at the edge of the positioning plate 37. When the first-stage return spring 30 and the second-stage return spring 31 are in the reset state, the rotating rod 28 is fully retracted into the transition hole 19 and the spring groove 27, and the first-stage hemisphere 33 protrudes out of the outside of the transition hole 19, and the second-stage hemisphere 34 protrudes out of the outside of the spring groove 27. Thus, through the resistance of the first-stage hemisphere 33 and the force-bearing component 39, all the rotating rods 28 are allowed to extend into the corresponding rotating holes 21 at the same time, thereby realizing the quick and synchronous disassembly and assembly of all the lever arms 15, so as to facilitate the daily inspection and maintenance of the structure.

[0052] An elastic element groove 53 is provided on the outer side wall of the limiting ring 32. A movable plate 55 is movably installed in the elastic element groove 53. The inner side of the movable plate 55 is connected to the bottom of the elastic element groove 53 through an elastic element 54. A limiting ball 56 is integrally formed on the outer side of the movable plate 55. A limiting groove is provided on the side wall of the spring groove 27. The limiting groove is an annular groove with a semi-circular cross-section. When the limiting ring 32 is actually installed, the limiting ball 56 is embedded in the limiting groove, which facilitates the positioning and installation of the limiting ring 32.

[0053] Example 3: Based on Example 2, a nut groove is provided on one side of the lever arm 15, and the mounting nut 43 is embedded in the nut groove. A movable groove 47 is provided on the other side of the lever arm 15. A top support spring 48 and a movable seat 49 are movably arranged in the movable groove 47. The two sides of the top support spring 48 are fixedly glued to the movable seat 49 and the bottom of the groove 47, respectively. A limit post 50 is integrally formed on the outer side of the movable seat 49. A limit post groove 51 is provided on the inner side of the nut of the mounting bolt 42. The cross-section of the limit post groove 51 is as follows: The circumference of the limiting post groove 51 is cut into a circle. When the mounting bolt 42 is actually installed and the top support spring 48 is in the reset state, the limiting post 50 is embedded in the limiting post groove 51, which facilitates the adjustment of the installation tightness of the force-bearing wheel 16, thereby better controlling the flattening effect of the fiberglass three-proof cloth 7. Under the action of the top support spring 48, the limiting post 50 is embedded in the limiting post groove 51, thereby locking the mounting bolt 42 and ensuring the stability of the tightness of the force-bearing wheel 16 after adjustment.

[0054] A friction ring positioning groove is provided on the side wall of the force-bearing wheel mounting groove 41. A friction ring 57 is fixedly installed in the friction ring positioning groove. The friction ring 57 is a rubber ring and is set to abut against the side wall of the force-bearing wheel 16. A rubber layer 44 is integrally formed on the outer side wall of the force-bearing wheel 16. An anti-slip protrusion 45 is integrally formed on the outer side wall of the rubber layer 44. The anti-slip protrusion 45 is a hemispherical protrusion structure. Multiple sets of anti-slip protrusions 45 are provided on the rubber layer 44 to increase the friction force on the force-bearing wheel 16, thereby ensuring the flattening effect of the fiberglass three-proof cloth 7.

[0055] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A fiberglass three-proof cloth coating thickness monitoring device that is easy to adapt and adjust, characterized in that: include: Hydraulic mechanism (1), the hydraulic mechanism (1) is fixedly installed on the mounting bracket on the side of the fabric conveying system; The main support (2) has a semi-frame structure and is fixedly connected to the telescopic part of the hydraulic mechanism (1). Upper moving structure (3), the upper moving structure (3) is installed on the upper side crossbeam of the main support (2); The lower moving structure (4) is installed on the lower side crossbeam of the main support (2); The upper detection mechanism (5) is positioned by means of the upper moving structure (3); The lower detection mechanism (6) is positioned by means of the lower moving structure (4); The upper detection mechanism (5) and the lower detection mechanism (6) are respectively used to detect the coating thickness on the upper and lower sides of the fiberglass three-proof cloth (7), and the fiberglass three-proof cloth (7) to be tested is conveyed by the roller system (8) on the cloth conveying system. The upper moving structure (3) includes a guide rod bracket (9), a moving seat (10), a transmission screw (11), and a telescopic electric cylinder (12). The guide rod bracket (9) is fixedly connected to the upper side crossbeam of the main bracket (2). The guide rod bracket (9) has a semi-frame structure, and guide rods (13) are fixedly installed between the guide rod brackets (9). The moving seat (10) has guide rod holes and screw holes. The moving seat (10) is movably mounted on the guide rod (13). The transmission screw (11) is rotatably mounted on the guide rod (12). On the rod support (9), and the transmission screw (11) is driven by the servo motor on the guide rod support (9), the moving seat (10) is driven by the transmission screw (11), the seat of the telescopic electric cylinder (12) is fixedly installed on the moving seat (10), the lower moving structure (4) has the same structure as the upper moving structure (3), and the upper moving structure (3) and the lower moving structure (4) are symmetrically arranged, and the upper moving structure (3) and the lower moving structure (4) move in opposite directions; The upper detection mechanism (5) includes a main body (14), a lever arm (15), a force-bearing wheel (16), and a thickness gauge (17). The main body (14) is fixedly connected to the telescopic rod of the telescopic electric cylinder (12), and a mounting groove (18) is provided on the main body (14). A transition hole (19) is provided on the side wall of the mounting groove (18), and a locking groove (20) is provided on the top wall of the mounting groove (18). A rotating hole (21) is provided at one end of the lever arm (15). The rotating hole (21) is correspondingly provided with the transition hole (19), and the rotating hole (21) and the transition hole (19) are aligned. 9) A rotating rod (28) is connected between them. A reset spring (22) is welded to the upper side of the lever arm (15). The reset spring (22) is set in a V shape, and the outer end of the reset spring (22) is engaged in the engagement groove (20). A force-bearing wheel mounting groove (41) is opened at the end of the lever arm (15). The force-bearing wheel (16) rotates in the force-bearing wheel mounting groove (41) through the mounting bolt (42) and the mounting nut (43). A positioning groove (23) is opened on the main body (14). The thickness measuring instrument (17) is fixedly installed in the positioning groove (23). The lower detection mechanism (6) has the same structure as the upper detection mechanism (5), and the lower detection mechanism (6) and the upper detection mechanism (5) are symmetrically arranged. In the actual detection process, the upper detection mechanism (5) and the lower detection mechanism (6) are moved to the position to be detected by the hydraulic mechanism (1) and the servo motor. Then, by driving the telescopic cylinder (12), the upper detection mechanism (5) and the lower detection mechanism (6) move towards each other, so that the force wheel (16) on the upper detection mechanism (5) and the lower detection mechanism (6) clamps the fiberglass three-proof cloth (7) to be detected. Under the outward expansion of the lever arm (15), the fiberglass three-proof cloth (7) to be detected is smoothed, thereby ensuring the accuracy of the thickness detector (17) in detecting the coating thickness on the fiberglass three-proof cloth (7).

2. The fiberglass three-proof cloth coating thickness monitoring device according to claim 1, characterized in that: The main body (14) is provided with a positioning plate groove (24), a connecting rod groove (25) and a force-bearing component groove (26). The force-bearing component groove (26) is connected to the positioning plate groove (24) through the connecting rod groove (25). The adapter hole (19) is connected to the force-bearing component groove (26). A spring groove (27) is provided at the port of the adapter hole (19) facing the mounting groove (18). A connecting plate (29) is integrally formed on the middle side wall of the rotating rod (28). A first-stage reset spring (30) and a second-stage reset spring (31) are fixedly connected to both sides of the connecting plate (29). A limit ring (32) is installed at the port of the spring groove (27). The rotating rod (28) is movably disposed in the center hole of the limit ring (32). The end of the first-stage reset spring (30) abuts against the bottom of the spring groove (27). The end of the second-stage reset spring (31) abuts against the limit ring (32).

3. The fiberglass three-proof cloth coating thickness monitoring device according to claim 2, characterized in that: The two ends of the rotating rod (28) are integrally formed with a primary hemisphere (33) and a secondary hemisphere (34). When the primary return spring (30) and the secondary return spring (31) are in the reset state, the rotating rod (28) is completely retracted into the adapter hole (19) and the spring groove (27). At this time, the primary hemisphere (33) protrudes out of the outer side of the adapter hole (19), and the secondary hemisphere (34) protrudes out of the outer side of the spring groove (27).

4. The fiberglass three-proof cloth coating thickness monitoring device according to claim 3, characterized in that: The bottom of the positioning plate groove (24) is provided with a threaded hole (35). A positioning plate (37) is fixedly installed in the positioning plate groove (24) by a positioning bolt (36). A clearance groove (40) is provided on the positioning plate (37). The detection head of the thickness measuring instrument (17) passes through the clearance groove (40). A connecting rod (38) is integrally formed on the side of the positioning plate (37). A force-bearing member (39) is integrally formed on the outer end of the connecting rod (38). When the first-stage hemisphere (33) abuts against the force-bearing member (39), the end of the rotating rod (28) extends into the rotating hole (21). At this time, the rotating rod (28) does not detach from the transition hole (19).

5. The fiberglass three-proof cloth coating thickness monitoring device according to claim 4, characterized in that: The outer side wall of the limiting ring (32) is provided with an elastic element groove (53), and a movable plate (55) is movably installed in the elastic element groove (53). The inner side of the movable plate (55) is connected to the bottom of the elastic element groove (53) through an elastic element (54). The outer side of the movable plate (55) is integrally formed with a limiting ball (56). The side wall of the spring groove (27) is provided with a limiting groove. The limiting groove is an annular groove with a semi-circular cross-section. When the limiting ring (32) is actually installed, the limiting ball (56) is embedded in the limiting groove.

6. The fiberglass three-proof cloth coating thickness monitoring device according to claim 5, characterized in that: A nut groove is provided on one side of the lever arm (15), and the mounting nut (43) is embedded in the nut groove. A movable groove (47) is provided on the other side of the lever arm (15). A top support spring (48) and a movable seat (49) are movably arranged in the movable groove (47). The two sides of the top support spring (48) are fixedly glued to the movable seat (49) and the bottom of the groove (47) respectively. A limit post (50) is integrally formed on the outer side of the movable seat (49). A limit post groove (51) is provided on the inner side of the nut of the mounting bolt (42). The cross section of the limit post groove (51) is round, and a circle is provided around the circumference of the limit post groove (51). When the mounting bolt (42) is actually installed and the top support spring (48) is in the reset state, the limit post (50) is embedded in the limit post groove (51).

7. The fiberglass three-proof cloth coating thickness monitoring device according to claim 6, characterized in that: A friction ring positioning groove is provided on the side wall of the force-bearing wheel mounting groove (41). A friction ring (57) is fixedly installed in the friction ring positioning groove. The friction ring (57) is a rubber ring and is abutted against the side wall of the force-bearing wheel (16). A rubber layer (44) is integrally formed on the outer side wall of the force-bearing wheel (16). An anti-slip protrusion (45) is integrally formed on the outer side wall of the rubber layer (44). The anti-slip protrusion (45) is a hemispherical protrusion structure, and multiple sets of anti-slip protrusions (45) are provided on the rubber layer (44).

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