Ultra-high square resistance non-contact coating optical measurement system

Abstract

The present invention discloses an ultra-high square resistance non-contact coating optical measurement system, which specifically relates to the field of coating measurement technology, including a coating machine, the coating machine including a support part, one side of the support part is fixedly connected to a mounting plate through a plurality of support columns, and a winding part and a square resistance measurement mechanism are arranged between the support part and the mounting plate. The present invention is provided with a tensioning mechanism, when the coating traction speed is accelerated, the rotation speed of the first limit roller will be synchronously accelerated, the air intake and the air outlet of the air inlet and the air outlet will be synchronously increased, the air pressure in the sealing chamber will be increased, and the tensioning roller will increase the distance between the first limit roller under the synchronous action of the increased air pressure and the traction force, reduce the tensioning force on the coating, avoid the traction speed being too fast to increase the friction between the coating and the roller, so that the tensioning force can be adaptively adjusted according to the traction speed of the coating, prevent the coating material from being torn or overstretched, and improve the uniformity and measurement accuracy of the coating.

Description

Technical Field

[0001] The present invention relates to the technical field of coating measurement, and more specifically, to an ultra-high square resistance non-contact coating optical measurement system. Background Art

[0002] The square resistance of the coating of the coating machine is calculated by the resistance between the two measuring rollers and the actual area. In the prior art, the coating machine is modified, an infrared light source emitting device is installed on one side of the film, and a light receiving device is installed on the other side. The infrared light source emitting device emits infrared light and the light receiving device receives infrared light. The square resistance of the coating is measured by using the principle that the light transmittance of the coating thickness is different. At the same time, the coating machine controller receives the signal of the light receiving device and transmits it to the computer to display the actual value, and generates the coating curve through the software, and then performs closed-loop control through the PLC to achieve the purpose of automatic control of the square resistance, which greatly improves the qualified rate of the product. However, during the traction measurement of the coating by the coating machine, there may be impurities on the surface of the coating, which will affect the penetration of light, and will also cause the friction between the coating and the roller to increase, causing the coating and the roller to wear, affecting the coating quality and measurement results. In addition, the tension of the coating machine cannot be automatically adjusted according to the traction speed. When the traction speed is fast, the friction between the coating and the roller will increase, causing the coating material to tear or over-stretch, affecting the uniformity of the coating.

[0003] The present invention provides an ultra-high square resistance non-contact coating optical measurement system, which aims to solve the problems that impurities exist on the surface of the coating during the traction measurement process, affecting the coating quality and measurement results, and that the tensioning force of the coating machine cannot be automatically adjusted according to the traction speed, affecting the uniformity of the coating. Summary of the invention

[0004] The purpose of the present invention is to provide an ultra-high square resistance non-contact coating optical measurement system to solve the problems raised in the above background technology that impurities exist on the surface of the coating during the traction measurement process, affecting the coating quality and measurement results, and the tensioning force of the coating machine cannot be automatically adjusted according to the traction speed, affecting the uniformity of the coating.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ultra-high square resistance non-contact coating optical measurement system, including a coating machine, the coating machine including: a support part; a mounting plate, which is fixedly connected to one side of the support part through a plurality of support columns; a winding part, which is arranged between the support part and the mounting plate; and also including: a square resistance measurement mechanism, which is arranged between the support part and the mounting plate; a cleaning mechanism, the cleaning mechanism is arranged between the support part and the mounting plate, the cleaning mechanism includes two symmetrically arranged gas collecting bins, the two gas collecting bins are respectively fixedly connected to the side where the support part and the mounting plate are close to each other, a first limiting roller is rotatably connected between the two gas collecting bins, both ends of the rotating shaft of the first limiting roller are fixedly connected to a turntable, the two turntables are respectively rotatably connected in the corresponding gas collecting bins, and the two turntables are eccentrically arranged with the corresponding gas collecting bins; a tensioning mechanism, the tensioning mechanism is arranged on the cleaning mechanism, and is used to cooperate with the cleaning mechanism to adjust the tensioning force of the coating according to the winding speed when the winding part winds up the coating.

[0006] Preferably, the supporting portion and the mounting plate are fixedly connected to a sealing chamber on one side close to each other, the two sealing chambers are symmetrically arranged, a piston plate is sealingly and slidingly connected between the two sealing chambers, one side of the two piston plates is fixedly connected to a piston rod, and one end of the two piston rods extending out of the sealing chamber is fixedly connected to a jet chamber.

[0007] Preferably, each of the turntables is provided with a plurality of circumferentially equidistantly distributed limit grooves, each of the limit grooves is slidably connected to a rotary vane, each of the rotary vanes is connected to the corresponding limit grooves with an elastic member, and each of the rotary vanes can always contact the inner wall of the gas collecting bin under the support of the corresponding elastic member.

[0008] Preferably, a through-flow groove is provided on one side of the jet chamber, and the groove is used for the coating to pass through during traction. A plurality of jet holes are provided on the top and bottom of the groove, and the interiors of the two sealed chambers are respectively connected to the two groups of jet holes.

[0009] Preferably, an air inlet and an air outlet are respectively provided on the outer wall of each of the air collecting bins, and each of the air outlets is connected to the interior of the corresponding sealing bin through an air pipe.

[0010] Preferably, the tensioning mechanism includes a tensioning roller rotatably connected between the two piston rods, the tensioning roller is located below the first limiting roller, and a throttling channel is opened inside each piston rod, and the throttling channel is used to connect the sealing chamber with a corresponding group of the jet holes.

[0011] Preferably, the interiors of the two sealed chambers are filled with gas on the side of the corresponding piston plate close to the piston rod, and the inner diameters of the gas outlet and the gas pipe are larger than the inner diameter of the throttling channel.

[0012] Preferably, the square resistance measuring mechanism includes an infrared light source emitting device and a light receiving device, the positions of the infrared light source emitting device and the light receiving device correspond to each other, and the infrared light source emitting device and the light receiving device are fixedly connected between the supporting part and the mounting plate through a supporting frame, the light receiving device can receive the infrared light emitted by the infrared light source emitting device, and the infrared light source emitting device and the light receiving device are both electrically connected to an external controller.

[0013] Preferably, a second limiting roller is rotatably connected between the support portion and the mounting plate, the first limiting roller is arranged below the square resistance measuring mechanism, and the second limiting roller is arranged above the square resistance measuring mechanism.

[0014] Preferably, the positions of the first limiting roller and the second limiting roller correspond to each other, and when the winding portion pulls the coating through the first limiting roller and the second limiting roller, the coating can pass vertically between the infrared light source emitting device and the light receiving device.

[0015] Technical effects and advantages of the present invention:

[0016] 1. The present invention, through the setting of the cleaning mechanism, can drive the first limit roller and the second limit roller to rotate during the process of traction coating measurement. When the first limit roller rotates, it can drive the two turntables to rotate in the corresponding gas collecting bin. When the two turntables rotate, they can drive the corresponding multiple rotary vanes to slide along the inner wall of the corresponding gas collecting bin, so that the external gas can be drawn into the corresponding gas collecting bin through the air inlet, and the gas is transported to the corresponding sealed bin through the air outlet and the air pipe. The gas entering the corresponding sealed bin will be ejected through the two groups of air jet holes, so that the coating before measurement can be cleaned during the traction process to prevent impurities from existing on the coating surface and avoid wear of the coating and the roller, thereby improving the measurement accuracy.

[0017] 2. Through the setting of the tensioning mechanism of the present invention, when the traction speed of the coating is accelerated, the rotation speed of the first limit roller will be accelerated synchronously, which will cause the air intake and air outlet of the air inlet and the air outlet to increase synchronously, so that the air pressure in the sealing chamber increases, and the tensioning roller increases the distance from the first limit roller under the synchronous action of the increased air pressure and the traction force, thereby reducing the tensioning force on the coating and avoiding the friction between the coating and the roller caused by excessive traction speed. The tensioning force can be adaptively adjusted according to the traction speed of the coating, thereby preventing the coating material from tearing or over-stretching, and improving the uniformity of the coating and the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a cross-sectional view of the installation position of the square resistance measuring mechanism, the cleaning mechanism and the tensioning mechanism of the present invention.

[0020] Figure 3 This is a cross-sectional view of the gas collecting bin position of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the square resistance measurement mechanism of the present invention.

[0022] Figure 5 It is a partial structural schematic diagram of the first limiting roller of the present invention.

[0023] Figure 6 It is a cross-sectional view of the internal structure of the gas collecting bin of the present invention.

[0024] Figure 7 It is a schematic diagram of the cleaning mechanism structure of the present invention.

[0025] Figure 8 It is a cross-sectional view of the internal structure of the jet chamber of the present invention.

[0026] Fig. 9 It is a cross-sectional view of the internal structure of the sealed chamber of the present invention.

[0027] Fig.10 It is a schematic diagram of the coating traction route of the present invention.

[0028] The accompanying drawings are marked as follows: 1. coating machine; 11. supporting part; 12. supporting column; 13. mounting plate; 14. winding part; 2. square resistance measuring mechanism; 21. infrared light source emitting device; 22. light receiving device; 23. supporting frame; 3. cleaning mechanism; 31. gas collecting chamber; 32. first limiting roller; 33. turntable; 34. limiting groove; 35. rotary vane; 36. elastic member; 37. sealing chamber; 38. piston plate; 39. piston rod; 310. jet chamber; 311. circulation groove; 312. jet hole; 313. air inlet; 314. air outlet; 315. air pipe; 316. second limiting roller; 4. tensioning mechanism; 41. tensioning roller; 42. throttling channel. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1

[0031] During the traction measurement of the coating by the coating machine, there may be impurities on the surface of the coating. The impurities will affect the penetration of light and increase the friction between the coating and the roller, causing wear of the coating and the roller, affecting the quality of the coating and the measurement results.

[0032] refer to Figure 1 An ultra-high square resistance non-contact coating optical measurement system according to an embodiment of the present invention includes a coating machine 1, the coating machine 1 includes a support portion 11, one side of the support portion 11 is fixedly connected to a mounting plate 13 through a plurality of support columns 12, a winding portion 14 and a square resistance measurement mechanism 2 are arranged between the support portion 11 and the mounting plate 13, and a driving device for driving the winding portion 14 to perform winding is installed inside the support portion 11.

[0033] refer to Figure 2-Figure 4 The square resistance measuring mechanism 2 includes an infrared light source emitting device 21 and a light receiving device 22. The positions of the infrared light source emitting device 21 and the light receiving device 22 correspond to each other, and the infrared light source emitting device 21 and the light receiving device 22 are fixedly connected between the support portion 11 and the mounting plate 13 through a support frame 23. The light receiving device 22 can receive the infrared light emitted by the infrared light source emitting device 21. The infrared light source emitting device 21 and the light receiving device 22 are both electrically connected to an external controller, and the light receiving device 22 can be a high-speed camera CCD sensor.

[0034] Infrared light is emitted by the infrared light source emitting device 21 and received by the light receiving device 22. The square resistance of the coating is measured by utilizing the principle that the light transmittance of the coating thickness is different. At the same time, the signal of the light receiving device 22 is received by the controller and transmitted to the computer to display the actual value. The coating curve is generated by the software, and then closed-loop control is performed by PLC to achieve the purpose of automatically controlling the square resistance, thereby greatly improving the qualified rate of the product.

[0035] refer to Figure 2-Figure 9 , also includes a cleaning mechanism 3, which is arranged between the support part 11 and the mounting plate 13, and is used to cooperate with the winding part 14 to clean the coating that has not been measured for square resistance, including two symmetrically arranged gas collecting bins 31, and the two gas collecting bins 31 are respectively fixedly connected to the side where the support part 11 and the mounting plate 13 are close to each other, and a first limiting roller 32 is rotatably connected between the two gas collecting bins 31, and both ends of the rotating shaft of the first limiting roller 32 are fixedly connected with a turntable 33, and the two turntables 33 are respectively rotatably connected in the corresponding gas collecting bins 31, and the two turntables 33 and the corresponding gas collecting bins 31 are eccentrically arranged.

[0036] refer to Figure 3 , Figure 5 and Figure 6Each turntable 33 is provided with a plurality of circumferentially equidistantly distributed limiting grooves 34, each limiting groove 34 is slidably connected to the inside with a rotary vane 35, each rotary vane 35 is connected to the corresponding limiting groove 34 with an elastic member 36, each rotary vane 35 can always contact the inner wall of the air collecting bin 31 under the support of the corresponding elastic member 36, and the outer wall of each air collecting bin 31 is respectively provided with an air inlet 313 and an air outlet 314, and each air outlet 314 is connected to the inside of the corresponding sealing bin 37 through an air pipe 315.

[0037] refer to Figure 3 , Figure 7 , Figure 8 and Fig. 9 A sealing chamber 37 is fixedly connected to one side of the support portion 11 and the mounting plate 13 where they are close to each other. The two sealing chambers 37 are symmetrically arranged. A piston plate 38 is sealingly and slidably connected between the two sealing chambers 37. A piston rod 39 is fixedly connected to one side of the two piston plates 38. One end of the two piston rods 39 extending out of the sealing chamber 37 is fixedly connected to an injection chamber 310. A through-shaped flow groove 311 is provided on one side of the injection chamber 310. The flow groove 311 is used for the passage of the coating during traction. A plurality of injection holes 312 are provided on the top and bottom of the flow groove 311. The interiors of the two sealing chambers 37 are respectively connected to the two groups of injection holes 312.

[0038] refer to Figure 2 , Figure 3 and Fig.10 A second limiting roller 316 is rotatably connected between the support portion 11 and the mounting plate 13, the first limiting roller 32 is arranged below the square resistance measuring mechanism 2, and the second limiting roller 316 is arranged above the square resistance measuring mechanism 2. The positions of the first limiting roller 32 and the second limiting roller 316 correspond to each other. When the winding portion 14 pulls the coating through the first limiting roller 32 and the second limiting roller 316, the coating can pass vertically between the infrared light source emitting device 21 and the light receiving device 22.

[0039] In actual use, the winding unit 14 pulls the coating layer for measurement, and the reference Fig.10, the coating is passed through the circulation groove 311, and the coating will adhere to the surface of the first limiting roller 32 and the second limiting roller 316 under the action of tension and traction, thereby driving the first limiting roller 32 and the second limiting roller 316 to rotate during the traction process, and the first limiting roller 32 can drive the two turntables 33 to rotate in the corresponding gas collecting bin 31 when the first limiting roller 32 rotates, and the two turntables 33 can drive the corresponding multiple air pipes 315 to slide along the inner wall of the corresponding gas collecting bin 31 when the two turntables 33 rotate, so that the external gas can be drawn into the corresponding gas collecting bin 31 through the air inlet 313, and the gas is transported to the corresponding sealed bin 37 through the air outlet 314 and the air pipe 315, and the gas entering the corresponding sealed bin 37 will be ejected through the two groups of jet holes 312, so that the coating before measurement can be cleaned during the traction process to prevent impurities from existing on the surface of the coating, avoid wear of the coating and the roller, and thus improve the measurement accuracy.

[0040] To sum up, through the setting of the cleaning mechanism 3, during the process of traction measurement of the coating, the first limiting roller 32 and the second limiting roller 316 can be driven to rotate. When the first limiting roller 32 rotates, it can drive the two turntables 33 to rotate in the corresponding gas collecting bin 31. When the two turntables 33 rotate, they can drive the corresponding multiple air pipes 315 to slide along the inner wall of the corresponding gas collecting bin 31, so that the external gas can be drawn into the corresponding gas collecting bin 31 through the air inlet 313, and the gas can be transported to the corresponding sealed bin 37 through the air outlet 314 and the air pipe 315. The gas entering the corresponding sealed bin 37 will be ejected through the two groups of jet holes 312, so that the coating before measurement can be cleaned during the traction process to prevent impurities from existing on the surface of the coating, avoid wear of the coating and the roller, and thus improve the measurement accuracy.

[0041] Embodiment 2

[0042] During actual use, the tensioning force of the coating machine 1 cannot be automatically adjusted according to the traction speed. When the traction speed is fast, the friction between the coating and the roller will increase, causing the coating material to tear or over-stretch, affecting the uniformity of the coating. In addition, when adjusting the tensioning force, it is necessary to stop the machine and replace springs with different elastic coefficients, which is troublesome and affects the measurement efficiency. Therefore, this embodiment improves the device described in the above embodiment.

[0043] refer to Figure 7-Figure 9, and also includes a tensioning mechanism 4, which is arranged on the cleaning mechanism 3 and is used to cooperate with the cleaning mechanism 3 to adjust the tension of the coating according to the winding speed of the winding part 14 when winding the coating. The tensioning mechanism 4 includes a tensioning roller 41 rotatably connected between two piston rods 39, and the tensioning roller 41 is located below the first limiting roller 32. A throttling channel 42 is opened inside each piston rod 39, and the throttling channel 42 is used to connect the sealing chamber 37 with a corresponding group of air injection holes 312. The insides of the two sealing chambers 37 are filled with gas on the side of the corresponding piston plate 38 close to the piston rod 39, and the inner diameters of the gas outlet 314 and the air pipe 315 are larger than the inner diameter of the throttling channel 42.

[0044] In actual use, when the winding part 14 pulls the coating so that the gas in the two gas collecting chambers 31 enters the corresponding sealing chamber 37, the gas in the two sealing chambers 37 will enter the corresponding throttling channel 42 and be ejected through a corresponding set of jet holes 312, thereby cleaning the coating surface.

[0045] Since the inner diameters of the air outlet 314 and the air pipe 315 are larger than the inner diameter of the throttling channel 42, the air intake in the sealing chamber 37 is greater than the air outlet. The continuous entry of gas into the sealing chamber 37 will increase the air pressure in the sealing chamber 37, thereby pushing the piston plate 38 and the piston rod 39 to drive the tensioning roller 41 to move, and compressing the gas on the side of the piston plate 38 close to the piston rod 39, so that the distance between the tensioning roller 41 and the first limiting roller 32 changes, thereby being able to adjust the tensioning force.

[0046] When the coating traction speed is slow, the rotation speed of the first limiting roller 32 will be slow, which will make the air intake and outlet of the air inlet 313 and the air outlet 314 smaller, so that the air pressure in the sealing chamber 37 changes less. When the air intake in the sealing chamber 37 is less than or equal to the air outlet of the throttling channel 42, the gas in the sealing chamber 37 can only blow and clean the coating surface, and will not affect the tensioning force, so that the gas on the side of the piston plate 38 close to the piston rod 39 can provide thrust to the tensioning roller 41 to tension the coating.

[0047] When the traction speed of the coating is accelerated, the rotation speed of the first limiting roller 32 will be accelerated synchronously, which will cause the air intake and air outlet volumes of the air inlet 313 and the air outlet 314 to increase synchronously, so that the air pressure in the sealing chamber 37 increases, and the tensioning roller 41 increases the distance from the first limiting roller 32 under the synchronous action of the increased air pressure and the traction force, thereby reducing the tensioning force on the coating and avoiding the friction between the coating and the roller caused by excessive traction speed. The tensioning force can be adaptively adjusted according to the traction speed of the coating to prevent the coating material from tearing or over-stretching, thereby improving the uniformity of the coating and the measurement accuracy.

[0048] When the end of the coating is separated from the discharge roller, the tensioning force acting on the coating will lose its effect, and the traction force cannot act on the first limiting roller 32, the second limiting roller 316 and the tensioning roller 41, so that the first limiting roller 32 cannot rotate, and the gas collecting work inside the gas collecting bin 31 cannot be performed, so that the gas on the side of the piston plate 38 close to the piston rod 39 pushes back the piston plate 38 and the piston rod 39 and drives the tensioning roller 41 to move in the direction close to the first limiting roller 32, reducing the distance between the tensioning roller 41 and the first limiting roller 32, so that the tensioning roller 41 and the first limiting roller 32 clamp the coating, thereby restoring the tension on the coating material and avoiding affecting the overall measurement result of the coating.

[0049] It should be noted that the faster the coating traction speed, the greater the pressure in the sealed chamber 37, and the faster the gas flow rate ejected through the jet hole 312, so that the cleaning mechanism 3 can adapt to the coating traction speed to clean the coating surface, thereby improving the cleaning effect.

[0050] To sum up, through the setting of the tensioning mechanism 4, when the traction speed of the coating is accelerated, the rotation speed of the first limiting roller 32 will be accelerated synchronously, which will cause the air intake and air outlet of the air inlet 313 and the air outlet 314 to increase synchronously, so that the air pressure in the sealing chamber 37 increases, and the tensioning roller 41 increases the distance between it and the first limiting roller 32 under the synchronous action of the increased air pressure and the traction force, thereby reducing the tensioning force on the coating and avoiding the traction speed being too fast to increase the friction between the coating and the roller, so that the tensioning force can be adaptively adjusted according to the traction speed of the coating, preventing the coating material from tearing or over-stretching, and improving the uniformity of the coating and the measurement accuracy.

[0051] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultra-high square resistance non-contact coating optical measurement system, characterized in that: The invention comprises a coating machine (1), wherein the coating machine (1) comprises: Support portion (11); A mounting plate (13) fixedly connected to one side of the support portion (11) via a plurality of support columns (12); A winding portion (14) disposed between the support portion (11) and the mounting plate (13); A square resistance measuring mechanism (2), which is arranged between the support portion (11) and the mounting plate (13); A cleaning mechanism (3) is arranged between the support portion (11) and the mounting plate (13), the cleaning mechanism (3) comprising two symmetrically arranged gas collecting bins (31), the two gas collecting bins (31) being respectively fixedly connected to the side of the support portion (11) and the mounting plate (13) close to each other, a first limiting roller (32) being rotatably connected between the two gas collecting bins (31), both ends of the rotating shaft of the first limiting roller (32) being fixedly connected to a rotating disk (33), the two rotating disks (33) being respectively rotatably connected in the corresponding gas collecting bins (31), and the two rotating disks (33) being eccentrically arranged with respect to the corresponding gas collecting bins (31); A tensioning mechanism (4) disposed on the cleaning mechanism (3) and used to cooperate with the cleaning mechanism (3) to adjust the tensioning force of the coating according to the winding speed of the winding portion (14) when winding the coating; Each of the rotating discs (33) is provided with a plurality of circumferentially equidistantly distributed limiting grooves (34); a rotating vane (35) is slidably connected to the interior of each limiting groove (34); an elastic member (36) is connected between each rotating vane (35) and the corresponding limiting groove (34); and each rotating vane (35) can always contact the inner wall of the gas collecting bin (31) under the support of the corresponding elastic member (36); A sealing chamber (37) is fixedly connected to one side of the support portion (11) and the mounting plate (13) that are close to each other, the two sealing chambers (37) are symmetrically arranged, a piston plate (38) is sealingly and slidably connected between the two sealing chambers (37), one side of the two piston plates (38) is fixedly connected to a piston rod (39), and one end of the two piston rods (39) extending out of the sealing chamber (37) is fixedly connected to an injection chamber (310); A through-flow groove (311) is provided on one side of the jet chamber (310), a plurality of jet holes (312) are provided on the top and bottom of the jet chamber (311), and the interiors of the two sealed chambers (37) are respectively connected to the two groups of jet holes (312); An air inlet (313) and an air outlet (314) are respectively provided on the outer wall of each of the air collecting bins (31), and each of the air outlets (314) is connected to the interior of the corresponding sealing bin (37) via an air pipe (315); The tensioning mechanism (4) comprises a tensioning roller (41) rotatably connected between the two piston rods (39), the tensioning roller (41) being located below the first limiting roller (32), and each piston rod (39) having a throttling channel (42) formed inside, the throttling channel (42) being used to connect the sealing chamber (37) with a corresponding group of the jet holes (312); The interiors of the two sealed chambers (37) are filled with gas on the side of the corresponding piston plate (38) close to the piston rod (39), and the inner diameters of the gas outlet (314) and the gas pipe (315) are larger than the inner diameter of the throttling channel (42).

2. The ultra-high square resistance non-contact coating optical measurement system according to claim 1, characterized in that: The square resistance measuring mechanism (2) comprises an infrared light source emitting device (21) and a light receiving device (22); the positions of the infrared light source emitting device (21) and the light receiving device (22) correspond to each other, and the infrared light source emitting device (21) and the light receiving device (22) are fixedly connected between the support portion (11) and the mounting plate (13) via a support frame (23); the light receiving device (22) is capable of receiving infrared light emitted by the infrared light source emitting device (21); and the infrared light source emitting device (21) and the light receiving device (22) are both electrically connected to an external controller.

3. The ultra-high square resistance non-contact coating optical measurement system according to claim 2, characterized in that: A second limiting roller (316) is rotatably connected between the support portion (11) and the mounting plate (13); the first limiting roller (32) is arranged below the square resistance measurement mechanism (2); and the second limiting roller (316) is arranged above the square resistance measurement mechanism (2).

4. The ultra-high square resistance non-contact coating optical measurement system according to claim 3, characterized in that: The positions of the first limiting roller (32) and the second limiting roller (316) correspond to each other, and when the winding portion (14) pulls the coating to pass through the first limiting roller (32) and the second limiting roller (316), the coating can pass vertically between the infrared light source emitting device (21) and the light receiving device (22).

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