Coated glass film surface detection device

Abstract

The utility model relates to the technical field of coated glass detection, in particular to a coated glass film surface detection device, which comprises a light emitting unit, a light receiving unit, a signal detection unit and an alarm unit, the light receiving unit receives the reflected light and converts the reflected light into an electric signal, whether the film surface direction of the coated glass is correct or not is judged through processing and logic analysis of the signal detection unit, if so, an instruction is sent to the alarm unit, and the alarm gives an alarm while the glass conveying production line is paused; according to the invention, data signal acquisition and processing of the two surfaces of the coated glass can be completed synchronously, the detection efficiency and the applicable type of the coated glass are greatly improved, interference of local defects of the glass and ambient light on a detection result is eliminated, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of coated glass film surface detection devices, and specifically is a kind of coated glass film surface detection device. BACKGROUND

[0002] With the continuous rise of average temperature and urbanization rate in recent years, building energy consumption accounts for a growing proportion of energy consumption in China year by year. Ordinary glass doors and windows and curtain walls have high heat transfer coefficients, causing great energy loss. Low-emissivity coated glass is coated with one or more functional films on one side of the ordinary glass, which has different optical properties from ordinary glass. The coated insulating glass formed by using a piece of coated glass and a piece of ordinary glass has the functions of summer heat insulation and winter heat preservation, and has excellent performance in reducing building energy consumption. Therefore, the use of coated insulating glass has become a trend in the construction industry. Because the functional film of coated glass will oxidize and fall off from the glass substrate when exposed to air, leading to energy-saving performance failure and color change, the functional film of coated glass must face the hollow interlayer, which requires that the placement direction of the coated glass film surface can be detected on the coated insulating glass production line.

[0003] The existing coated glass film surface detection device is mainly a resistance type coated glass film surface detection device, which uses metal probes to test the resistance of the coated glass surface to determine the placement direction of the glass film surface. The resistance type coated glass film surface detection device has high accuracy in detecting the film surface of coated glass with good electrical conductivity, but it is prone to false judgments for coated glass with poor or no electrical conductivity, which reduces the pass rate of coated insulating glass products. At the same time, the contact of metal probes with the film surface of coated glass on the production conveying line can scratch and damage the integrity of the coating, affecting the durability of the product. If the coated insulating glass with misplacement or scratches is installed on a large building glass curtain wall, the cost of re-maintenance or replacement of the functionally failed glass will be very high, greatly increasing the economic burden of glass production enterprises and users. Therefore, the utility model designs a coated glass film surface detection device to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a coated glass film surface detection device to solve the problem of limited types of coated glass used in existing detection equipment and low detection accuracy in the background technology.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a kind of coated glass film surface detection device, including light emitting unit, light receiving unit, signal detection unit and alarm unit, light emitting unit is provided with light source, lens and light signal controller connected in the side of light source, for generating the incident light of specific pulse mode, light receiving unit is connected with light emitting unit, for receiving the reflected light of the two surfaces of coated glass in the area to be measured and converting it into electrical signal;Signal detection unit includes signal amplifier and detection component, and is connected with light receiving unit and alarm unit, for amplifying the electrical signal emitted by light receiving unit and determining whether the film surface of coated glass is placed correctly by logic analysis, alarm unit includes alarm and relay, for the result of placing error of coated glass sends alarm and pauses glass conveying production line.

[0006] Further, the light emitting unit and the light receiving unit are fixedly connected by a support, and the fixed connection is two groups, which are respectively connected with the signal detection unit by signal lines, for being placed on both sides of the coated glass respectively, and synchronously collecting the light signals reflected by the two surfaces of the coated glass.

[0007] Further, the light signal controller can provide specific pulse signals for controlling the light source to generate specific pulse incident light.

[0008] Further, the specific pulse signals emitted by the light signal controller have a frequency of 0.5 kHz-1 MHz.

[0009] Further, the light source is one or more.

[0010] Further, the wavelength range of the light emitted by the light source is 380-1070 nm.

[0011] Further, the angle of the specific emitted light generated by the light source can be adjusted.

[0012] Further, the detection component is a single-chip microcomputer, which has the functions of identifying the characteristics and intensity of the pulse signals, and is used for determining the placement direction of the film surface of the coated glass by means of logic analysis of the electrical signals.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model adopts the fixed connection of two groups of light emitting units and light receiving units to synchronously collect the light signals and data analysis of the coated surface and the ordinary glass surface of the coated glass, effectively utilizes the obvious difference between the optical reflection properties of the two surfaces, and can be applied to coated glass with different coated materials and conductivity.

[0015] The utility model discloses adopt the specific pulse incident light of pulse frequency different from the light emitting frequency of lighting equipment etc., and the detection conclusion is formed after the average intensity of multiple specific pulse pulse electric signals in a period of time is carried out logic analysis with the aid of detection component, not only effectively filters out the interference of environmental light such as illumination light source, sunlight, but also can improve the detection accuracy due to the misjudgment of the defect such as local unevenness or uneven coating of glass surface.

[0016] In addition, the detection device does not contact the coated glass during the detection process, does not cause the abrasion of the coated glass, can effectively reduce the loss cost of equipment and materials in the detection, and improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the coated glass detection device in the embodiment of the utility model;

[0018] Figure 2 It is the whole structure schematic diagram of the coated glass detection device in the embodiment of the utility model; Figure 1 The light receiving unit and the light emitting unit fixed connection part schematic diagram in the embodiment of the utility model;

[0019] In the drawing: 1, coated glass;11, the film surface of coated glass;12 the ordinary glass surface of coated glass;2, light emitting unit;21, light signal controller;22, light source;23, lens;3, light receiving unit;4, signal detection unit;41, signal amplifier;42, detection component;5, alarm unit;51, alarm;52, relay;6, support. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] Please refer to Figures 1-2 The embodiment provides a coated glass film surface detection device, which comprises a light emitting unit 2, a light receiving unit 3, a signal detection unit 4 and an alarm unit 5.

[0022] The light emitting unit 2 is connected with the light receiving unit 3, and is connected to form a fixed connecting piece through the support 6; the light emitting unit 2 is provided with a light signal controller 21, a light source 22 and a lens 23; the light source 22 is an infrared LED lamp bead with a wavelength of 1070 nm, and is movably connected in a groove of the support; the lens 23 is arranged outside the light source 22, and the size of a light spot is controlled by adjusting the lens 23; the light signal controller 21 is embedded in the inner wall of one side of the groove; when the light signal controller 21 provides a specific pulse signal with a frequency of 50 kHz in real time, the light source 22 generates specific pulse incident light with a frequency of 50 kHz and a wavelength of 1070 nm; the incident light irradiates the glass surface at an incident angle of 60 degrees; the reflected light is received by the light receiving unit 3; and the light receiving unit 3 converts the light signal into an electric signal.

[0023] The signal detection unit 4 includes a signal amplifier 41 and a detection component 42, and is connected with the light receiving unit 3 and the alarm unit 5; the detection component 42 can be a single-chip microcomputer; when the reflected light is received by the light receiving unit 3, the pulse light signal is converted into a pulse electric signal and is transmitted to the signal amplifier 41; the signal amplifier 41 sends the electric signal to the detection component 42 after amplifying the electric signal; the average intensity of a plurality of pulse electric signal data is logically analyzed by the detection component 42; whether the film surface of the coated glass is placed correctly is determined; when the average intensity of the electric signal of the glass surface 11 in the specified direction of the glass production line is lower than the average intensity of the electric signal of the glass surface 12 in the opposite direction, and the result is consistent with the correct result of the software algorithm by default, it is concluded that the glass placement direction is correct; when the average intensity of the electric signal of the glass surface 11 in the specified direction of the glass production line is higher than the average intensity of the electric signal of the glass surface 12 in the opposite direction, an instruction that the glass placement direction is incorrect is output.

[0024] The alarm unit 5 includes an alarm 51 and a relay 52; the alarm can be set as a light / sound alarm according to actual needs; when the detection component 42 concludes that the glass placement direction is correct, the alarm 51 and the relay 52 do not receive an alarm instruction; at this time, the detection device and the glass conveying belt continue to run; when the detection component 42 outputs an instruction that the glass placement direction is incorrect, the instruction is transmitted to the alarm 51 and the relay 52 at the same time; the alarm 51 sends a light / sound signal alarm; and the relay 52 makes the glass conveying production line pause.

[0025] The above-described embodiments only express the implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a plurality of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A coated glass film surface inspection device, characterized by: The application relates to a glass film placement detection device, which comprises a light emitting unit (2), a light receiving unit (3), a signal detection unit (4) and an alarm unit (5), the light emitting unit (2) is provided with a light source (22), a lens (23) and a light signal controller (21) connected to one side of the light source, is used for generating incident light of a specific pulse mode, the light receiving unit (3) is connected with the light emitting unit (2), is used for receiving reflected light of two surfaces of a coated glass in a to-be-detected area and converting the reflected light into an electric signal; the signal detection unit (4) comprises a signal amplifier (41) and a detection component (42), is connected with the light receiving unit (3) and the alarm unit (5), is used for amplifying the electric signal emitted by the light receiving unit and determining whether the film surface of the coated glass is correctly placed through logical analysis, and the alarm unit (5) comprises an alarm (51) and a relay (52), is used for alarming the result that the coated glass is incorrectly placed and suspending a glass conveying production line. 2.The coated glass film surface inspection apparatus according to claim 1, characterized in that: The light emitting unit (2) and the light receiving unit (3) are fixedly connected through a support (6), the fixed connection is two groups, is connected with the signal detection unit (4) through signal lines respectively, is used for being placed on two sides of the coated glass respectively, and the light signals reflected by two surfaces of the coated glass are synchronously collected.

3. The coated glass film inspection apparatus of claim 1, wherein: The light signal controller (21) can provide a specific pulse signal, which is used for controlling the light source (22) to generate specific pulse incident light.

4. The coated glass film inspection apparatus of claim 3, wherein: The specific pulse signal frequency emitted by the light signal controller (21) is 0.5 kHz-1 MHz.

5. The coated glass film inspection apparatus of claim 1, wherein: The light source (22) is one or more.

6. The coated glass film inspection apparatus of claim 5, wherein: The wavelength range of the light emitted by the light source (22) is 380-1070 nm.

7. The coated glass film inspection apparatus of claim 6, wherein: The angle of the emitted light generated by the light source (22) can be adjusted.

8. The coated glass film inspection apparatus of claim 1, wherein: The detection component (42) is a single-chip microcomputer, has the functions of identifying pulse signal characteristics and intensity, and is used for determining the film surface placement direction of the coated glass through logical analysis of the electric signal.

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