A real-time monitoring system and method for the air extraction volume of an electroplating line

Abstract

The present invention discloses a real-time monitoring system and method for the air extraction volume of an electroplating line, which relates to the technical field of air volume monitoring; in order to solve the accuracy problem; the device includes a wind speed monitoring device arranged in a ventilation duct, an air extraction device for generating negative pressure in the duct, and a monitoring device; the method includes the calibration of a wind speed sensing mechanism. Before use, an operator rotates the windward blade manually in combination with an angle gauge, and T is the reading of the piezoelectric ceramic chip. By setting the windward blade to be rotatable, when the wind speed is large, the included angle between it and the wind direction becomes smaller, so the force exerted by the wind is smaller, the rotation speed is low, which prevents the aggravation of wear under high speed of the device and improves the service life. When the wind speed is small, the included angle between it and the wind direction becomes larger, so the force exerted by the wind can be increased, making the measured value larger. The error value is the internal friction force of the device, which is a fixed value, so the ratio of the measured value to the error value is increased, and the measurement accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air volume monitoring, and in particular to a system and method for real-time monitoring of the air volume of an electroplating line. Background Art

[0002] Electroplating is the process of plating a thin layer of other metals or alloys on certain metal surfaces using the principle of electrolysis. It is a process that uses electrolysis to adhere a layer of metal film to the surface of metal or other material parts.

[0003] Since the electroplating solution is also mixed with other organic additives, which are harmful to the human body, the electroplating workshop needs to be ventilated to reduce the concentration of free organic solvents in the air and reduce the harm to the workers.

[0004] After searching, the Chinese patent publication number CN212803308U discloses an intelligent ventilation and adjustment system combining ventilation ducts and monitoring systems, including a fan connected to the main duct, and the main duct and each of its branch ducts are respectively provided with a wind speed sensor; each of the branch ducts is provided with a wind damper and a wind shield capable of changing its actual ventilation cross-sectional area and a motor for controlling the opening angle of the wind damper and a wind shield, and the PLC controller is electrically connected to the motor, the wind speed sensor and the PC respectively, and the PC has an MCGS system installed therein and is connected to the front panel of the MCGS system.

[0005] The above patent has the following deficiencies: it uses a wind speed sensor to sense wind speed, and then calculates the air volume in combination with the cross-sectional area of ​​the pipe, but the blade rotation angle (the angle between the blade and the plane perpendicular to the wind direction) of the wind speed sensor cannot be adjusted. As a result, when the ventilation volume is small, the difference between the force of the wind on the blade and the rotational inertia of the blade and the friction of the components is small, resulting in a large difference between the measured value and the exact value and low accuracy. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a real-time monitoring system and method for the exhaust volume of an electroplating line.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A real-time monitoring system for the exhaust volume of an electroplating line includes a wind speed monitoring device arranged in a ventilation duct, an exhaust device for generating negative pressure on the duct, and a monitoring device.

[0009] The wind speed monitoring device includes a support ring, a support fixing mechanism, and a wind speed sensing mechanism. The support ring is supported and fixed inside the ventilation duct through the support fixing mechanism. The inner side wall of the support ring is rotatably connected to a main shaft through a bracket. The wind speed sensing mechanism is fixedly installed on the outer wall of the main shaft, and the other end of the main shaft is connected to a torque meter. The wind speed sensing mechanism includes a roller body, an adjustable blade assembly arranged on the outer circumference of the support ring, an elastic sensing assembly arranged inside the roller body, and a position synchronization assembly.

[0010] The adjustable blade assembly includes a rotating shaft rotatably connected to the radial direction of the roller body and a windward blade fixedly installed on the outer wall of one side of the rotating shaft.

[0011] Preferably: The position synchronization assembly includes a gear fixedly installed on the circumferential outer wall of the rotating shaft and a toothed ring rotatably connected to the inner wall of the roller body. All the gears are meshed with the toothed ring.

[0012] Furthermore: The elastic sensing assembly includes a first limiting block fixedly installed on the inner circumferential wall of the toothed ring and a second limiting block fixedly installed on the inner side wall of the roller body. A piezoelectric ceramic chip is bonded to the outer wall of the second limiting block, and an elastic body is arranged between the sensing end of the piezoelectric ceramic chip and the piezoelectric ceramic chip.

[0013] Based on the above-mentioned solution: The support fixing mechanism includes a T-shaped sliding rod and an anti-sliding block. The T-shaped sliding rod is slidably connected to the radial inner wall of the support ring. The anti-sliding block is fixedly installed on the end face of the T-shaped sliding rod. A spring is fixedly installed on the lower surface of the top of the T-shaped sliding rod, and the other end of the spring is fixedly installed on the outer circumferential wall of the support ring.

[0014] A better solution in the above-mentioned solution is: The support fixing mechanism includes a T-shaped sliding rod and an anti-sliding wheel. The T-shaped sliding rod is slidably connected to the radial inner wall of the support ring. The anti-sliding wheel is rotatably connected to a support plate through a wheel shaft. The support plate is fixedly installed on the upper surface of the top of the T-shaped sliding rod. A spring is fixedly installed on the lower surface of the top of the T-shaped sliding rod, and the other end of the spring is fixedly installed on the outer circumferential wall of the support ring.

[0015] As a further solution of the present invention: The support fixing mechanism further includes a friction plate and an electric telescopic rod.

[0016] Meanwhile, the electric telescopic rod is fixedly installed inside the T-shaped sliding rod. The output end of the electric telescopic rod is fixedly installed with a slider. The friction plate is fixedly installed on the top outer wall of the slider, and the slider is slidably matched with the inner side wall of the T-shaped sliding rod.

[0017] As a preferred one of the present invention: The support fixing mechanism further includes an adjusting ring. The adjusting ring is rotatably connected to the side wall of the support ring. An inclined groove is formed on the inner wall of the adjusting ring. The T-shaped sliding rod is movably limited to the inner wall of the inclined groove through a limiting column.

[0018] Meanwhile, it also includes a wireless communication module, a storage module, a modeling module, a central processing module, and a signal receiving module. The signal receiving module is electrically connected to the piezoelectric ceramic chip, the electric telescopic rod, and the torque meter.

[0019] A method for using a real-time monitoring system for the extraction air volume of an electroplating line includes the following steps:

[0020] S1: Calibration of the wind speed sensing mechanism. Before use, manually rotate the windward blade in combination with an angle ruler to establish a functional relationship between the angle of the windward blade and the reading of the piezoelectric ceramic chip. T is the reading of the piezoelectric ceramic chip.

[0021] S2: Use the four groups of support and fixing mechanisms to fix the device in the ventilation duct and adjust and crawl to the required position.

[0022] S3: Use the monitoring device to establish a remote communication connection with the wireless communication module and set the ventilation volume threshold.

[0023] S4: The central processing module calculates the wind speed value according to the signal and the calculation method, and uses the modeling module to model and calculate the ventilation volume. Compare it with the threshold. If it is greater, reduce the power of the exhaust device. If it is less, increase the power of the exhaust device until the ventilation volume is consistent with the threshold.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. In the present invention, by setting the windward blade to be rotatable, when the wind speed is large, the included angle between it and the wind direction becomes smaller, so the acting force received from the wind is smaller, the rotation speed is low, which prevents the aggravation of wear under high speed of the device and improves the service life. When the wind speed is small, the included angle between it and the wind direction becomes larger, so the acting force with the wind can be increased, so that the measured value is larger, and the error value is the internal friction force of the device, which is a fixed value. Then, the ratio of the measured value to the error value is increased, and the measurement accuracy is increased.

[0026] 2. In the present invention, by providing a gear and a gear ring, the rotation of all the windward blades is linked, which can ensure that the inclination angles of all the windward blades are the same, increase the uniformity of the force on the device, and thus prevent the "vibration" in the rotation speed, further increasing the measurement accuracy.

[0027] 3. In the present invention, by providing an elastic body and a piezoelectric ceramic chip, on the one hand, the elastic body can provide elastic torque support for the windward blade, and on the other hand, according to its elastic modulus, combined with the piezoelectric effect of the piezoelectric ceramic chip, the actual angle of the windward blade can be calculated, thus ensuring the reliability of the measurement.

[0028] 4. In the present invention, by providing a support and fixation mechanism, which utilizes the elastic force of the spring combined with the anti-slip function of the anti-slip block, the device can be supported and fixed in the pipeline more conveniently, and it can be adaptively adjusted and fixed to ventilation pipelines with square or circular cross-sections of different sizes, further increasing its convenience.

[0029] 5. In the present invention, by providing an adjusting ring and the inclined grooves therein, through the limiting effect, the positions of the T-shaped sliding rods can be ensured to be completely synchronous, so as to ensure that the wind speed sensing mechanism can always be placed at the axis of the pipeline, further improving the measurement accuracy.

[0030] 6. In the present invention, by providing anti-slip wheels, on the one hand, they can contact the inner wall of the pipeline for fixation, and on the other hand, they can rotate relative to the pipeline, so that the device can crawl along the inner wall of the pipeline to perform the position adjustment function. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of the wind speed monitoring device of a real-time monitoring system for the extraction air volume of an electroplating line proposed by the present invention;

[0032] Figure 2 is a front view structural diagram of the support and fixation mechanism of a real-time monitoring system for the extraction air volume of an electroplating line proposed by the present invention;

[0033] Figure 3 is a rear view structural diagram of the support and fixation mechanism of a real-time monitoring system for the extraction air volume of an electroplating line proposed by the present invention;

[0034] Figure 4 is a schematic structural diagram of the wind speed sensing mechanism of a real-time monitoring system for the extraction air volume of an electroplating line proposed by the present invention;

[0035] Figure 5 is a sectional view structural diagram of the wind speed sensing mechanism of a real-time monitoring system for the extraction air volume of an electroplating line proposed by the present invention;

[0036] Figure 6 is a schematic structural diagram of the support and fixation mechanism Embodiment 3 of a real-time monitoring system for the extraction air volume of an electroplating line proposed by the present invention;

[0037] Figure 7 is a schematic structural diagram of the signal transmission of a real-time monitoring system for the extraction air volume of an electroplating line proposed by the present invention.

[0038] In the figure: 1 - support ring, 2 - support fixing mechanism, 3 - main shaft, 4 - bracket, 5 - wind speed sensing mechanism, 6 - T-shaped slide bar, 7 - anti-slip block, 8 - spring, 9 - limit post, 10 - inclined slot, 11 - adjusting ring, 12 - adjustable blade assembly, 13 - elastic sensing assembly, 14 - position synchronization assembly, 15 - rotating shaft, 16 - windward blade, 17 - gear, 18 - toothed ring, 19 - roller body, 20 - first limit block, 21 - elastic body, 22 - piezoelectric ceramic chip, 23 - second limit block, 24 - support plate, 25 - anti-slip wheel, 26 - wheel axle, 27 - friction plate, 28 - slider, 29 - electric telescopic rod, 30 - wireless communication module, 31 - storage module, 32 - modeling module, 33 - central processing module, 34 - signal receiving module. Specific embodiments

[0039] The technical solution of this patent will be further described in detail below in combination with specific embodiments.

[0040] The embodiments of this patent will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation to this patent.

[0041] Embodiment 1:

[0042] An electroplating line extraction air volume real-time monitoring system, as Figures 1-7 shown, includes a wind speed monitoring device arranged in a ventilation duct, an extraction device for generating negative pressure in the duct, and a monitoring device. In this embodiment, no limitation is imposed on the extraction device, which can be various types of fans, large air pumps, etc., as long as it can provide negative pressure for the duct and be variable frequency. In this embodiment, no limitation is imposed on the monitoring device, which can be electronic products such as a PC or a mobile device, and only needs to perform signal receiving and data display functions. The wind speed monitoring device can monitor the wind speed, calculate the air volume in combination with the actual ventilation cross-sectional area of the duct, then adjust the power of the extraction device according to the required air volume, and transmit data such as data and control records to the monitoring device. Monitoring personnel can use the monitoring device to read data and control the device.

[0043] To solve the wind speed monitoring problem; as Figures 1-7As shown, the wind speed monitoring device includes a support ring 1, a support and fixation mechanism 2, and a wind speed sensing mechanism 5. The support ring 1 is supported and fixed inside the ventilation duct through the support and fixation mechanism 2. The inner side wall of the support ring 1 is rotatably connected to a main shaft 3 through a bracket 4. The wind speed sensing mechanism 5 is fixedly installed on the outer wall of the main shaft 3, and the other end of the main shaft 3 is connected to a torque meter. In this embodiment, the torque meter is not elaborated because it is prior art and is mainly used for torque measurement of the shaft. Those skilled in the art can understand its working principle and installation method. The entire wind speed monitoring device can be supported and fixed inside the duct through the support and fixation mechanism 2, and then the wind speed sensing mechanism 5 can detect the wind speed.

[0044] The wind speed sensing mechanism 5 includes a roller body 19, an adjustable blade assembly 12 arranged on the outer circumference of the support ring 1, an elastic sensing assembly 13 arranged inside the roller body 19, and a position synchronization assembly 14.

[0045] The adjustable blade assembly 12 includes a rotating shaft 15 rotatably connected to the radial direction of the roller body 19 and a windward blade 16 welded to the outer wall of one side of the rotating shaft 15.

[0046] The position synchronization assembly 14 includes a gear 17 welded to the circumferential outer wall of the rotating shaft 15 and a gear ring 18 rotatably connected to the inner wall of the roller body 19, and all the gears 17 are engaged with the gear ring 18.

[0047] The elastic sensing assembly 13 includes a limit block one 20 welded to the inner circumferential wall of the gear ring 18 and a limit block two 23 welded to the inner side wall of the roller body 19. A piezoelectric ceramic chip 22 is bonded to the outer wall of the limit block two 23, and an elastic body 21 is arranged between the sensing end of the piezoelectric ceramic chip 22 and the piezoelectric ceramic chip 22. In this embodiment, the specific type of the elastic body 21 is not limited. It can be an elastic rubber column, a silica gel column, an arc spring, etc. Preferably, the elastic body 21 is an arc spring.

[0048] When the device is in use, when the wind force in the ventilation duct acts on the surface of the windward blade 16, it will drive the entire roller body 19 to rotate, and then calculate the wind speed in combination with the torque meter.

[0049] By setting the windward blade 16 to be rotatable, when the wind speed is relatively high, the included angle between it and the wind direction becomes smaller, so the acting force received from the wind is smaller and the rotation speed is low, preventing the device from being worn more severely at high speeds and improving the service life. When the wind speed is relatively low, the included angle between it and the wind direction becomes larger, so the acting force from the wind can be increased, making the measured value larger. And the error value is the internal friction force of the device, which is a fixed value. Then the ratio of the measured value to the error value is increased, increasing the measurement accuracy.

[0050] Moreover, by providing a gear 17 and a gear ring 18, the device links the rotation of all the wind-facing blades 16, ensuring that the inclination angles of all the wind-facing blades 16 are the same, increasing the uniformity of the force on the device, thereby preventing "vibrations" in rotation speed and further increasing the measurement accuracy.

[0051] In addition, by providing an elastomer 21 and a piezoelectric ceramic chip 22, on the one hand, the elastomer 21 can provide elastic torque support for the wind-facing blade 16, and on the other hand, according to its elastic modulus, in conjunction with the piezoelectric effect of the piezoelectric ceramic chip 22, the actual angle of the wind-facing blade 16 can be calculated, thus ensuring the reliability of the measurement.

[0052] When this embodiment is in use, first, the entire device is supported and fixed perpendicularly to the axial direction of the pipeline inside the pipeline by the support fixing mechanism 2. Subsequently, the required wind direction is set. After ventilation, based on the reading of the piezoelectric ceramic chip 22 and the elastic modulus of the elastomer 21, the compression amount of the elastomer 21 is inversely deduced. Then, according to the compression amount, the rotation angle of the gear ring 18 is calculated. Combining the transmission ratio of the gear ring 18 and the gear 17, the rotation angle of the rotating shaft 15 is calculated. Based on the rotation angle of the rotating shaft 15, the angle of the wind-facing blade 16 is determined. Then, according to the angle of the wind-facing blade 16 and the reading of the torque meter, the wind speed is determined. And when the wind speed is relatively high, the included angle between it and the wind direction becomes smaller, so the force received from the wind is smaller, the rotation speed is low, preventing the device from being severely worn at high speeds and increasing the service life. When the wind speed is relatively low, the included angle between it and the wind direction becomes larger, so the force acting on the wind can be increased, resulting in a larger measured value. And the error value is the internal friction of the device, which is a fixed value, thus increasing the ratio of the measured value to the error value.

[0053] The specific method for calculating the wind speed is as follows:

[0054] Assume that the reading of the torque meter is M, the included angle between the wind-facing blade 16 and the wind direction is α, and the cross-sectional area of the wind-facing blade 16 is S.

[0055] Step 1: According to the reading M of the torque meter, combined with the formula M = R * F, calculate the value of F, where R is the distance from the center of the wind-facing blade 16 to its rotation center, and F is the force exerted by the wind on the wind-facing blade 16 along the rotation direction;

[0056] Step 2: Determine the included angle α between the wind-facing blade 16 and the wind direction according to the reading of the piezoelectric ceramic chip 22 and the elastic modulus of the elastomer 21;

[0057] Step 3: According to the included angle between the wind-facing blade 16 and the wind direction and the value of F, combined with the composition and decomposition of forces in physical mechanics, calculate the force perpendicular to the plane of the wind-facing blade 16 received by the wind-facing blade 16, that is

[0058] In the fourth step, combining the law of conservation of momentum in Newton's three laws and static analysis, it can be known that F′Δt = mσ, where Δt is a very short time difference, m is the mass of the gas hitting the surface of the windward blade 16 within the time of Δt, and σ is the component velocity of the gas perpendicular to the inclined plane of the windward blade 16;

[0059] In the fifth step: Calculate the mass of the gas hitting the surface of the windward blade 16 within the time of Δt according to the gas density, that is, m = ρV = ρSΔtσ;

[0060] In the sixth step: Calculate the functional relationship between σ and F according to the formulas in the fourth and fifth steps, and determine the value of σ in combination with the value of F, where F = ρSσ 2 cosα;

[0061] In the seventh step: Calculate the wind speed according to σ and the angle of the windward blade 16, and then calculate the air volume in combination with the cross-sectional area of the ventilation duct.

[0062] In the eighth step, model, according to the actually calculated V 风速 value, establish a function relationship diagram between it and the time t, and the ventilation volume within any time period is the corresponding area on the function relationship diagram.

[0063] Embodiment 2:

[0064] An electroplating line air extraction volume real-time monitoring system, as Figures 1-3 shown, in order to solve the problem of support and fixation; the following improvements are made in this embodiment on the basis of Embodiment 1: The support and fixation mechanism 2 is arranged in a multi-group circular array, and the specific number of groups of the support and fixation mechanism 2 in this embodiment is not limited, and can be any number greater than 3, preferably: The support and fixation mechanism 2 is arranged in four groups.

[0065] The support and fixation mechanism 2 includes a T-shaped slide bar 6 and an anti-slip block 7. The T-shaped slide bar 6 is slidably connected to the radial inner wall of the support ring 1. The anti-slip block 7 is fixed to the end face of the T-shaped slide bar 6 by bolts. A spring 8 is welded to the lower surface of the top of the T-shaped slide bar 6, and the other end of the spring 8 is welded to the outer circumferential wall of the support ring 1. The anti-slip block 7 can support on the inner wall of the pipeline, so that, combined with the elastic force of the spring 8, it has a certain pressure on the inner wall of the pipeline, thus playing the fixing function of the device.

[0066] By providing the support and fixation mechanism 2, it utilizes the elastic force of the spring 8 and the anti-slip of the anti-slip block 7, so that the device can be supported and fixed in the pipeline more conveniently, and it can be adaptively adjusted and fixed to ventilation ducts with square and circular cross-sections of different sizes, further increasing its convenience.

[0067] The support and fixation mechanism 2 further includes an adjustment ring 11. The adjustment ring 11 is rotatably connected to the side wall of the support ring 1. An inclined groove 10 is formed in the inner wall of the adjustment ring 11, and the T-shaped slide rod 6 is movably limited to the inner wall of the inclined groove 10 through a limit post 9.

[0068] By providing the adjustment ring 11 and the inclined groove 10 therein, the positions of the T-shaped slide rods 6 can be guaranteed to be completely synchronized through the limiting effect, so as to ensure that the wind speed sensing mechanism 5 can always be placed at the axis of the pipeline, further improving the measurement accuracy.

[0069] Embodiment 3:

[0070] An electroplating line extraction air volume real-time monitoring system, as Figure 6 shown, to solve the support and fixation problem; on the basis of Embodiment 1, the following improvements are made in this embodiment: the support and fixation mechanism 2 is arranged in a multi-group circular array, and the specific number of groups of the support and fixation mechanism 2 in this embodiment is not limited, and can be any number greater than 3. Preferably: the support and fixation mechanism 2 is arranged in four groups.

[0071] The support and fixation mechanism 2 includes a T-shaped slide rod 6 and an anti-slip wheel 25. The T-shaped slide rod 6 is slidably connected to the radial inner wall of the support ring 1. The anti-slip wheel 25 is rotatably connected to a support plate 24 through a wheel shaft 26, and the support plate 24 is welded to the upper surface of the top of the T-shaped slide rod 6. A spring 8 is welded to the lower surface of the top of the T-shaped slide rod 6, and the other end of the spring 8 is welded to the outer circumferential wall of the support ring 1.

[0072] By providing the anti-slip wheel 25, on the one hand, it can contact the inner wall of the pipeline for fixation, and on the other hand, it can rotate relative to the pipeline, so that the device can crawl along the inner wall of the pipeline to perform the position adjustment function.

[0073] The support and fixation mechanism 2 further includes a friction plate 27 and an electric telescopic rod 29. The electric telescopic rod 29 is fixed to the inside of the T-shaped slide rod 6 through bolts. The output end of the electric telescopic rod 29 is fixed to a slider 28 through bolts. The friction plate 27 is welded to the top outer wall of the slider 28, and the slider 28 is slidably matched with the inner side wall of the T-shaped slide rod 6; when crawling is required, the electric telescopic rod 29 drives the friction plate 27 to contract to ensure that the anti-slip wheel 25 can rotate. When fixation is required, the electric telescopic rod 29 extends, and the friction plate 27 is matched with the anti-slip wheel 25, and the rotation of the anti-slip wheel 25 is limited by friction to achieve the fixation function.

[0074] Embodiment 4:

[0075] An electroplating line extraction air volume real-time monitoring system, as Figure 7As shown in the figure, the following improvements are made on the basis of the foregoing embodiment. The real-time monitoring system for the air extraction volume of the electroplating line further includes a wireless communication module 30, a storage module 31, a modeling module 32, a central processing module 33, and a signal receiving module 34. The signal receiving module 34 is electrically connected to the piezoelectric ceramic chip 22, the electric telescopic rod 29, and the torque meter.

[0076] In this embodiment: The monitoring device can be connected to the wind speed monitoring device through the wireless communication module 30. The signal receiving module 34 receives the signal and transmits it to the central processing module 33. The central processing module 33 calculates the wind speed according to the signal, and the modeling module 32 establishes a chart model of the wind speed, the torque meter reading, and the piezoelectric ceramic chip 22 reading.

[0077] Embodiment 5:

[0078] A method for using a real-time monitoring system for the air extraction volume of an electroplating line, as Figures 1-7 shown, includes the following steps:

[0079] S1: Calibration of the wind speed sensing mechanism 5. Before use, manually rotate the windward blade 16 in combination with an angle ruler to establish a functional relationship between the angle of the windward blade 16 and the reading of the piezoelectric ceramic chip 22, α = ∫T, where T is the reading of the piezoelectric ceramic chip 22;

[0080] S2: Use the four groups of support and fixing mechanisms 2 to fix the device in the ventilation duct and adjust and crawl to the required position;

[0081] S3: Use the monitoring device to establish a remote communication connection with the wireless communication module 30 and set the ventilation volume threshold;

[0082] S4: The central processing module 33 calculates the wind speed value according to the signal and the calculation method, and uses the modeling module 32 to model and calculate the ventilation volume. Compare it with the threshold. If it is greater, reduce the power of the air extraction device. If it is less, increase the power of the air extraction device until the ventilation volume is consistent with the threshold.

[0083] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A real-time monitoring system for the extraction air volume of an electroplating line, comprising a wind speed monitoring device arranged in a ventilation duct, an air extraction device for generating negative pressure in the duct, and a monitoring device, characterized in that the wind speed monitoring device includes a support ring (1), a support fixing mechanism (2), and a wind speed sensing mechanism (5). The support ring (1) is supported and fixed inside the ventilation duct through the support fixing mechanism (2). The inner side wall of the support ring (1) is rotatably connected to a main shaft (3) through a bracket (4). The wind speed sensing mechanism (5) is fixedly installed on the outer wall of the main shaft (3), and the other end of the main shaft (3) is connected to a torque meter; the wind speed sensing mechanism (5) includes a roller body (19), an adjustable blade assembly (12) arranged on the outer circumference of the roller body (19), an elastic sensing assembly (13) arranged inside the roller body (19), and a position synchronization assembly (14); the adjustable blade assembly (12) includes a rotating shaft (15) rotatably connected to the radial direction of the roller body (19) and a windward blade (16) fixedly installed on the outer wall of one side of the rotating shaft (15).

2. The real-time monitoring system for the extraction air volume of an electroplating line according to claim 1, wherein, the position synchronization assembly (14) includes a gear (17) fixedly installed on the circumferential outer wall of the rotating shaft (15) and a gear ring (18) rotatably connected to the inner wall of the roller body (19). All the gears (17) are engaged with the gear ring (18).

3. The real-time monitoring system for the extraction air volume of an electroplating line according to claim 2, characterized in that, the elastic sensing assembly (13) includes a limit block one (20) fixedly installed on the inner circumferential wall of the gear ring (18) and a limit block two (23) fixedly installed on the inner side wall of the roller body (19). A piezoelectric ceramic chip (22) is bonded to the outer wall of the limit block two (23). An elastic body (21) is arranged between the sensing end of the piezoelectric ceramic chip (22) and the limit block one (20).

4. The real-time monitoring system for the extraction air volume of an electroplating line according to claim 1, wherein the support fixing mechanism (2) includes a T-shaped slide bar (6) and an anti-slip block (7). The T-shaped slide bar (6) is slidably connected to the radial inner wall of the support ring (1). The anti-slip block (7) is fixedly installed on the end face of the T-shaped slide bar (6). A spring (8) is fixedly installed on the lower surface of the top of the T-shaped slide bar (6), and the other end of the spring (8) is fixedly installed on the outer circumferential wall of the support ring (1).

5. The real-time monitoring system for the extraction air volume of an electroplating line according to claim 1, wherein the support fixing mechanism (2) includes a T-shaped slide bar (6) and an anti-slip wheel (25). The T-shaped slide bar (6) is slidably connected to the radial inner wall of the support ring (1). The anti-slip wheel (25) is rotatably connected to a support plate (24) through a wheel shaft (26). The support plate (24) is fixedly installed on the upper surface of the top of the T-shaped slide bar (6). A spring (8) is fixedly installed on the lower surface of the top of the T-shaped slide bar (6), and the other end of the spring (8) is fixedly installed on the outer circumferential wall of the support ring (1).

6. The real-time monitoring system for the extraction air volume of an electroplating line according to claim 5, wherein, the support fixing mechanism (2) further includes a friction plate (27) and an electric telescopic rod (29).

7. The real-time monitoring system for the extraction air volume of an electroplating line according to claim 6, characterized in that the electric telescopic rod (29) is fixedly installed inside the T-shaped slide bar (6). The output end of the electric telescopic rod (29) is fixedly installed with a slider (28). The friction plate (27) is fixedly installed on the outer wall of the top of the slider (28), and the slider (28) is slidably fitted to the inner side wall of the T-shaped slide bar (6).

8. The real-time monitoring system for the extraction air volume of an electroplating line according to claim 4 or 7, characterized in that, The support and fixing mechanism (2) further includes an adjusting ring (11). The adjusting ring (11) is rotatably connected to the side wall of the support ring (1). An inclined groove (10) is formed in the inner wall of the adjusting ring (11). The T-shaped sliding rod (6) is movably limited to the inner wall of the inclined groove (10) through a limit post (9).

9. The real-time monitoring system for the extraction air volume of an electroplating line according to claim 3, characterized in that, It further includes a wireless communication module (30), a storage module (31), a modeling module (32), a central processing module (33) and a signal receiving module (34). The signal receiving module (34) is electrically connected to the piezoelectric ceramic chip (22), the electric telescopic rod (29), and the torque meter. The signal receiving module (34) is also electrically connected to the central processing module (33). The central processing module (33) is electrically connected to the storage module (31) and the modeling module (32). The storage module (31) and the modeling module (32) are electrically connected. The storage module (31) is electrically connected to the wireless communication module (30).

10. A method for using a real-time monitoring system for the extraction air volume of an electroplating line, characterized in that, Using the real-time monitoring system for the air extraction volume of the electroplating line described in claim 9, it includes the following steps: S1: Calibration of the wind speed sensing mechanism (5). Before use, manually rotate the windward blade (16) in combination with an angle ruler to establish a functional relationship between the angle of the windward blade (16) and the reading of the piezoelectric ceramic chip (22). T is the reading of the piezoelectric ceramic chip (22). S2: Use four groups of support and fixing mechanisms (2) to fix the device in the ventilation duct and adjust and crawl to the required position. S3: Use the monitoring device to establish a remote communication connection with the wireless communication module (30) and set the ventilation volume threshold. S4: The central processing module (33) calculates the wind speed value according to the signal and the calculation method, and uses the modeling module (32) to model and calculate the ventilation volume. Compare it with the threshold. If it is greater, reduce the power of the air extraction device. If it is less, increase the power of the air extraction device until the ventilation volume is consistent with the threshold.

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