A reflective online coating thickness gauge

Abstract

A reflective online coating thickness gauge includes a mounting platform, a slide, a limit switch, a motor, a control cabinet and a thickness measuring component; the slide is arranged on one side of the mounting platform, and the thickness measuring component is movably embedded in the slide and driven by a motor to move. This thickness gauge uses visible light to measure film thickness online. In addition to avoiding the problems existing in infrared and ray methods, this thickness gauge has a wide measurement range and high measurement accuracy. It is currently the most ideal measurement method for online coating thickness measurement.

Description

Technical Field

[0001] The invention relates to the field of film thickness measurement, and in particular to a reflective online coating thickness gauge. Background Art

[0002] Coating is widely used in the fields of photosensitive materials, electronics, tapes, optical films, packaging, etc. The detection of coating thickness is an essential means to ensure the quality of various coating products, and it is of great significance to the development of high-tech industries. Traditional online film thickness measurement uses infrared and X-ray methods. The infrared measurement accuracy is poor and the measurement range is small, which cannot meet the requirements of actual production. The X-ray method has radioactive pollution, high labor protection requirements, and damage to products, and is gradually being eliminated. Summary of the invention

[0003] The present invention provides a reflective online coating thickness gauge, which is used for online film thickness measurement and is suitable for measurement control of production lines and laboratory research on precision coatings. It has multiple adjustable parameters and can adapt to the measurement of different samples.

[0004] A reflective online coating thickness gauge comprises a mounting platform, a slide table, a limit switch, a motor, a control cabinet and a thickness measuring component;

[0005] The slide table is arranged on one side of the mounting table, and the thickness measuring component is movably embedded in the slide table and is driven by a motor to move;

[0006] The thickness measuring components include a probe, an optical light source, a spectrometer, a signal amplifier, a light source power supply, a signal power supply, an optical fiber, a slider and a drag chain;

[0007] The probe, optical light source, spectrometer, signal amplifier, light source power supply, signal power supply, and optical fiber are all mounted on a slide block embedded in the slide table, and are guided by a drag chain driven by a motor to move in the slide table;

[0008] The optical power supply and the spectrometer are connected to the probe via optical fibers, the signal amplifier is connected to the spectrometer, and is connected to the control cabinet via a signal line;

[0009] The light source power supply is connected to the optical power supply, and the signal power supply is connected to the signal amplifier.

[0010] Furthermore, the control cabinet includes a display, a keyboard and a mouse, an industrial computer and a main box, and the main box includes a signal receiver, a power switch, a power supply, a driver and a control card;

[0011] The host box is connected to an industrial computer, the industrial computer is connected to a display, and the keyboard and mouse are connected to the industrial computer for operation control;

[0012] The signal receiver of the main box is connected to the signal amplifier of the thickness measuring component through a signal line.

[0013] Furthermore, the driver is connected to the motor and is connected to the industrial computer through a control card, and transmits the feedback signal of the motor to the industrial computer to control the position and movement of the thickness measuring component.

[0014] Furthermore, the industrial computer processes the data measured by the thickness measuring component and displays the processed data on a display.

[0015] Furthermore, the measuring head uses visible light to measure thickness.

[0016] Furthermore, a limit switch is provided on the slide to limit the movement of the thickness measuring component.

[0017] The beneficial effects achieved by the present invention are as follows: the present invention adopts visible light to measure film thickness online. In addition to avoiding the problems existing in infrared and ray methods in the background technology, the thickness gauge proposed by the present invention has a wide measurement range and high measurement accuracy, and is currently the most ideal measurement method for online coating thickness measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of the thickness gauge in the embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of a partially enlarged structure of the thickness measuring component in an embodiment of the present invention.

[0020] Figure 3 It is a side view of the internal structure of the control cabinet described in the embodiment of the present invention.

[0021] Figure 4 It is a front view of the internal structure of the control cabinet described in the embodiment of the present invention.

[0022] Figure 5 Schematic diagram of the three-dimensional structure of the thickness gauge described in the embodiment of the present invention.

[0023] In the figure, 1-mounting table, 2-slide table, 3-limit switch, 4-thickness measuring component, 41-probe, 42-optical light source, 43-spectrometer, 44-signal amplifier, 45-light source power supply, 46-signal power supply, 47-optical fiber, 48-slider, 49-drag chain, 5-motor, 6-control cabinet, 61-signal receiver, 62-power switch, 63-power supply, 64-driver, 65-control card, 66-industrial computer, 67-keyboard and mouse, 68-display. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0025] A reflective online coating thickness gauge comprises a mounting platform 1, a sliding platform 2, a limit switch 3, a motor 5, a control cabinet 6 and a thickness measuring component 4.

[0026] The slide 2 is arranged on one side of the mounting platform 1. The thickness measuring component 4 is movably embedded in the slide 2 and is driven to move by a motor 5. A limit switch 3 is arranged on the slide 2 to limit the movement of the thickness measuring component 4.

[0027] The thickness measuring component 4 includes a probe 41, an optical light source 42, a spectrometer 43, a signal amplifier 44, a light source power supply 45, a signal power supply 46, an optical fiber 47, a slider 48 and a drag chain 49. The probe 41, the optical light source 42, the spectrometer 43, the signal amplifier 44, the light source power supply 45, the signal power supply 46 and the optical fiber 47 are all mounted on a slider 48 embedded in the slide 2, and are guided by a drag chain 49 driven by a motor 5 to move in the slide 2. The optical power supply 42 and the spectrometer 43 are connected to the probe 41 through the optical fiber 47, the signal amplifier 44 is connected to the spectrometer 43, and is connected to the control cabinet 6 through a signal line. The light source power supply 45 is connected to the optical power supply 42, and the signal power supply 46 is connected to the signal amplifier 44. The probe 41 uses visible light to measure thickness.

[0028] The control cabinet 6 includes a display 68, a keyboard and mouse 67, an industrial computer 66 and a main box, wherein the main box includes a signal receiver 61, a power switch 62, a power supply 63, a driver 64 and a control card 65. The main box is connected to the industrial computer 66, the industrial computer 66 is connected to the display 68, and the keyboard and mouse 67 are connected to the industrial computer for operation control.

[0029] The signal receiver 61 of the main box is connected to the signal amplifier 44 of the thickness measuring component 4 through a signal line. The industrial computer 66 processes the data measured by the thickness measuring component 4 sent by the signal amplifier 44 and displays it on the display 68. The driver 64 is connected to the motor 5 and is connected to the industrial computer 66 through the control card 65, and transmits the feedback signal of the motor 5 to the industrial computer 66 to control the position and movement of the thickness measuring component 4.

[0030] like Figure 1-2 , the motor 5 drives the thickness measuring component 4 to move left and right in the slide 2, thereby driving the probe 41 to scan left and right. The feedback signal of the motor 5 is transmitted to the driver 64 through its control line, and is transmitted to the industrial computer 66 through the control card 65, and the position and scanning movement of the probe 41 are controlled after being processed by the program. The probe 41 processes the visible light signal transmitted by the optical light source 42 through the optical lens group and emits it to the measured surface, and transmits the reflected light signal to the spectrometer 43. The electrical signal output by the spectrometer 43 is transmitted to the signal amplifier 44, and is transmitted to the signal receiver 61 in the control cabinet 6 by the signal line, and then sent to the industrial computer 66, and the measurement result is displayed on the display 68 after being processed by the program.

[0031] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A reflective online coating thickness gauge, characterized in that: The thickness gauge includes a mounting platform, a slide table, a limit switch, a servo motor, a control cabinet and a thickness measuring component; The slide table is arranged on one side of the mounting table, and the thickness measuring component is movably embedded in the slide table and driven by a servo motor to move; The thickness measuring components include a probe, an optical light source, a spectrometer, a signal amplifier, a light source power supply, a signal power supply, an optical fiber, a slider and a drag chain; The probe, optical light source, spectrometer, signal amplifier, light source power supply, signal power supply, and optical fiber are all mounted on a slide block embedded in the slide table, and are guided by a drag chain driven by a servo motor to move in the slide table; The optical light source and the spectrometer are connected to the probe via optical fibers, the signal amplifier is connected to the spectrometer, and is connected to the control cabinet via a signal line; The light source power supply is connected to the optical power supply, and the signal power supply is connected to the signal amplifier; the probe uses visible light to measure thickness; The servo motor drives the thickness measuring component to move left and right in the slide, thereby driving the probe to perform left and right scanning movement; the feedback signal of the servo motor is transmitted to the driver through its control line, and then transmitted to the industrial computer through the control card, and then controlled by the program to control the position and scanning movement of the probe; the probe processes the visible light signal from the optical light source through the optical lens group and then emits it to the measured surface, and transmits the reflected light signal to the spectrometer. The electrical signal output by the spectrometer is transmitted to the signal amplifier, and then transmitted to the signal receiver in the control cabinet by the signal line, and then sent to the industrial computer, and the measurement result is displayed on the monitor after program processing.

2. A reflective online coating thickness gauge according to claim 1, characterized in that: The control cabinet includes a display, a keyboard and a mouse, an industrial computer and a host box, and the host box includes a signal receiver, a power switch, a power supply, a driver and a control card; The host box is connected to an industrial computer, the industrial computer is connected to a display, and the keyboard and mouse are connected to the industrial computer for operation control; The signal receiver of the main box is connected to the signal amplifier of the thickness measuring component through a signal line.

3. A reflective online coating thickness gauge according to claim 2, characterized in that: The driver is connected to the servo motor and is connected to the industrial computer through a control card, and transmits the feedback signal of the servo motor to the industrial computer to control the position and movement of the thickness measuring component.

4. A reflective online coating thickness gauge according to claim 2, characterized in that: The industrial computer processes the data measured by the thickness measuring component and displays the data on the display.

5. The reflective online coating thickness gauge according to claim 1, characterized in that: The slide table is provided with a limit switch to limit the movement of the thickness measuring component.

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