CN112945977A - Detection equipment for surface defects of screen - Google Patents
Detection equipment for surface defects of screen Download PDFInfo
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- CN112945977A CN112945977A CN202110176127.9A CN202110176127A CN112945977A CN 112945977 A CN112945977 A CN 112945977A CN 202110176127 A CN202110176127 A CN 202110176127A CN 112945977 A CN112945977 A CN 112945977A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
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Abstract
The invention provides a detection device for surface defects of a screen, which comprises a detection device body, wherein the detection device body comprises a base station, a transmission mechanism, a fogging mechanism and an optical mechanism, and the transmission mechanism, the fogging mechanism and the optical mechanism are fixedly arranged on the base station; the equipment utilizes the transmission mechanism to transmit the product to be detected, and immediately takes a picture of the product to be detected through the optical mechanism after the product to be detected passes through the fogging mechanism, so that the phenomenon that the fog covering the surface of the screen evaporates to influence the detection effect is avoided, and the detection efficiency of the product is improved; the equipment utilizes the conveying guide rail to enable a product to be detected to move between the temperature and humidity generating assembly and the residual fog capturing assembly, and utilizes the cooperation between the temperature and humidity generating assembly and the residual fog capturing assembly to control the temperature, the flow direction and the flow speed of water fog, so that the water fog uniformly covers the surface of the product to be detected, and the detection accuracy is improved.
Description
Technical Field
The invention relates to the field of screen surface defect detection, in particular to a detection device for screen surface defects.
Background
Electronic products are widely used today, and most electronic products need to present information to users through an electronic screen, such as: and (5) a mobile phone screen. Generally, the surface of an electronic screen has a transparent conductive film, because the film is nano-scale and transparent, people cannot distinguish whether defects exist by naked eyes.
During the production process, the surface of the screen is generally uniformly covered with a layer of mist, and then sampling is carried out through an optical system to determine whether the surface of the screen has defects. After the surface of the screen is covered with a layer of fog, if the image cannot be acquired in time, a part of the fog covered on the surface of the screen may be evaporated, and a good detection effect cannot be obtained.
Disclosure of Invention
In view of the above, the present invention provides a device for detecting defects on a surface of a screen, which uses a transmission mechanism to immediately photograph a product to be detected passing through a fogging mechanism by an optical mechanism, so as to avoid the phenomenon that fog covering the surface of the screen evaporates to affect the detection effect.
In order to solve the technical problems, the invention adopts the following technical scheme:
the detection equipment for the surface defects of the screen comprises a detection equipment body, wherein the detection equipment body comprises:
a base station;
the conveying mechanism is fixedly arranged on the base platform and comprises a driving assembly and a conveying track, and the products to be detected move along with the conveying track under the driving force of the driving assembly;
the mist generating mechanism is fixedly arranged on the base platform and comprises a connecting pipe, a supply assembly, a temperature and humidity generating assembly and a residual mist capturing assembly, the conveying rail is positioned between the temperature and humidity generating assembly and the residual mist capturing assembly, and the residual mist capturing assembly is positioned below the conveying rail; wherein the content of the first and second substances,
the supply assembly comprises a water tank and a water pump, and the water tank is connected with the water pump through the connecting pipe; the temperature and humidity generating assembly is connected with the water pump through the connecting pipe, water in the water tank flows into the temperature and humidity generating assembly under the driving of the water pump, and water mist is discharged after the water mist is heated by the temperature and humidity generating assembly;
the residual fog capturing component comprises an exhaust fan and a capturing port, the capturing port is positioned below the temperature and humidity generating component, and a product to be detected is positioned between the capturing port and the temperature and humidity generating component; under the driving of the exhaust fan, water mist discharged from the temperature and humidity generating assembly flows to the catching port, so that one part of the water mist covers the surface of a product to be detected, and the other part of the water mist flows into the catching port from the side edge of the product to be detected;
the optical mechanism is fixedly arranged on the base platform, and the optical mechanism and the fogging mechanism are arranged adjacently; the optical mechanism comprises a first camera, and the first camera is positioned above the transmission mechanism so as to photograph the product to be detected covered with the water mist.
Preferably, the temperature and humidity generating assembly includes:
a water container into which water in the water tank flows by being driven by the water pump;
the heating assembly is fixedly arranged in the water container;
the spray head assembly is communicated with the water container, and water mist generated in the water container is discharged through the spray head assembly.
Preferably, the temperature and humidity generating assembly further comprises a temperature sensor, the temperature sensor is installed in the water container, so that the water in the water container is at a set threshold temperature, and the set threshold temperature range is greater than 65 ℃ and less than 95 ℃.
Preferably, the nozzle assembly comprises a plurality of superposed filter screens, the filter screens are fixedly arranged in the nozzle assembly, and a distance of a set threshold value is reserved between the adjacent filter screens.
Preferably, when the product to be detected is located between the capturing port and the temperature and humidity generating assembly, a gap exists between the capturing port and the product to be detected, so that the water mist enters the capturing port from the periphery of the product to be detected simultaneously.
Preferably, when the product to be detected is located between the capturing port and the temperature and humidity generating assembly, the area of the capturing port is larger than the projection area of the product to be detected on the capturing port.
Preferably, a guide plate is installed in the catching port, a plurality of guide holes are formed in the guide plate, and water mist discharged from the temperature and humidity generating assembly flows through the plurality of guide holes from the catching port.
Preferably, the residual fog catching assembly further comprises a residual fog recycling assembly, and the residual fog recycling assembly is communicated with the water tank; and the water mist discharged from the temperature and humidity generating assembly enters the residual mist recovery assembly through the catching port and the guide plate and flows into the water tank.
Preferably, the optical mechanism further comprises a second camera and a third camera, and the second camera and the third camera are respectively located at two sides of the product to be detected so as to photograph the side edge of the product to be detected.
Preferably, the detection device body further comprises an indicator light, and the indicator light is fixedly installed on the base station.
The technical scheme of the invention at least has one of the following beneficial effects:
the invention discloses a detection device for detecting the surface defects of a screen, which utilizes a transmission mechanism to transmit a product to be detected, and immediately takes a picture of the product to be detected through an optical mechanism after the product to be detected passes through a fogging mechanism, so that the phenomenon that fog covering the surface of the screen evaporates to influence the detection effect is avoided, and the detection efficiency of the product is improved;
the equipment utilizes the conveying guide rail to enable a product to be detected to move between the temperature and humidity generating assembly and the residual fog capturing assembly, and utilizes the cooperation between the temperature and humidity generating assembly and the residual fog capturing assembly to control the temperature, the flow direction and the flow speed of water fog, so that the water fog uniformly covers the surface of the product to be detected, and the detection accuracy is improved.
Drawings
FIG. 1 is a schematic overall structure diagram of an inspection apparatus for surface defects of a screen according to an embodiment of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 4;
FIG. 3 is a schematic structural view of a fogging mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic view of a partial structure of a fogging mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic view of a partial structure of a fogging mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic view of a partial structure of a fogging mechanism according to an embodiment of the present invention;
fig. 7 is a schematic partial structure diagram of an apparatus for detecting defects on a surface of a screen according to an embodiment of the present invention.
Reference numerals:
100. detecting an equipment body; 10. a fogging mechanism; 11. a temperature and humidity generating assembly; 111. a showerhead assembly; 12. a connecting pipe; 131. a water tank; 132. a water pump; 14. a residual mist capturing component; 141. catching a catching port; 1411. a guide plate; 20. a transport mechanism; 21. a transfer rail; 22. a drive assembly; 30. an optical mechanism; 31. a first camera; 32. a second camera; 33. a third camera; 40. a base station; 50. provided is a mobile phone.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
In the prior art, when detecting the surface defects of the screen, a layer of mist is firstly covered on the surface of the screen to be detected by using a mist generating device, and then the surface of the screen is photographed by using an optical mechanism to detect whether the surface of the screen has defects. Generally, a plurality of screens to be detected are placed in a fogging device, the screens are conveyed to a specified position in a manual or mechanical mode after the surfaces of the screens are covered with mist, then the screens are photographed through an optical mechanism, on one hand, the mist can be partially evaporated during the conveying process of the screens covered with the mist, on the other hand, the screens are easily contacted with other objects to damage the mist layers on the surfaces of the screens, and the detection accuracy is reduced.
In view of the above problems, embodiments of the present application provide a detection apparatus for detecting surface defects of a screen, where the detection apparatus utilizes a transmission mechanism to transmit a product to be detected to a fogging mechanism and an optical mechanism, and the fogging mechanism and the optical mechanism are disposed adjacent to each other to reduce the time from when the screen covered with a thin fog layer is photographed to when the optical mechanism obtains a photograph; the phenomenon that the fog covering the surface of the screen evaporates to influence the detection effect is avoided, and the detection efficiency of the product is improved.
First, an inspection apparatus for a surface defect of a screen according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The product to be detected is a mobile phone, but is not limited to a mobile phone.
Specifically, as shown in fig. 1 and 2, the detection apparatus body 100 is included in fig. 1, the detection apparatus body 100 includes a base 40, a transport mechanism 20, a fogging mechanism 10, and an optical mechanism 30, and the transport mechanism 20, the fogging mechanism 10, and the optical mechanism 30 are fixedly mounted on the base 40. The transmission mechanism 20 includes a driving assembly 22 and a transfer rail 21, and the mobile phone 50 moves together with the transfer rail 21 under the driving force of the driving assembly 22. The mobile phone 50 is placed on the conveying track 21, the conveying track 21 is conveyed under the driving force of the driving assembly 22, the mobile phone 50 moves along the conveying track 21, and the driving assembly 22 is preferably, but not limited to, a motor.
The mist generating mechanism 10 comprises a connecting pipe 12, a supply assembly, a temperature and humidity generating assembly 11 and a residual mist catching assembly 14, a conveying rail 21 is located between the temperature and humidity generating assembly 11 and the residual mist catching assembly 14 in the vertical direction, and the residual mist catching assembly 14 is located below the conveying rail 21. The mobile phone 50 moves to a position between the temperature and humidity generating assembly 11 and the residual fog catching assembly 14 in the moving process, and when the mobile phone 50 moves to a position between the temperature and humidity generating assembly 11 and the residual fog catching assembly 14 or the mobile phone 50 moves to a position close to the temperature and humidity generating assembly 11, the temperature and humidity generating assembly 11 discharges water fog and the residual fog catching assembly 14 starts to collect the water fog.
The supply assembly comprises a water tank 131 and a water pump 132, the water tank 131 is connected with the water pump 132 through a connecting pipe 12, the temperature and humidity generating assembly 11 is connected with the water pump 132 through the connecting pipe 12, water stored in the water tank 131 flows into the temperature and humidity generating assembly 11 under the driving of the water pump 132, and water mist is discharged after the temperature and humidity generating assembly 11 is heated.
The residual fog capturing component 14 comprises an exhaust fan 141 and a capturing port 142, the capturing port 142 is positioned below the temperature and humidity generating component 11, and the mobile phone 50 is positioned between the capturing port 142 and the temperature and humidity generating component 11; driven by the exhaust fan 141, the mist discharged from the temperature and humidity generating assembly 11 flows toward the catching port 142, so that a part of the mist covers the surface of the mobile phone 50, and the other part of the mist flows into the catching port 142 from the side of the mobile phone 50. The suction fan 141 is located below the catching port 142, and the suction fan 141 operates such that the air flow above the catching port 142 flows into the catching port 142 and into the suction fan 141, so that the mist discharged from the temperature and humidity generating assembly 11, the catching port 142, and the suction fan 141 form an air flow passage.
The optical mechanism 30 is fixedly arranged on the base 40, and the optical mechanism 30 is arranged adjacent to the fogging mechanism 10; the optical mechanism 30 includes a first camera 31, and the first camera 31 is located above the conveying mechanism 20 to take a picture of the water mist covered mobile phone 50. After the mobile phone 50 passes through the fogging mechanism 10, the surface of the screen is covered with a layer of fog, the transmission mechanism 20 transmits the mobile phone 50 to the optical mechanism 30, and the first camera 31 photographs the surface of the screen of the mobile phone 50 covered with the layer of fog to detect whether the surface of the mobile phone has defects. The optical mechanism 30 is arranged adjacent to the fogging mechanism 10, namely, the mobile phone 50 immediately reaches the optical mechanism 30 after being covered with a layer of mist, so that the placing time of the mobile phone 50 after being covered with the mist is reduced, and the mist on the surface of the mobile phone is prevented from evaporating to influence the detection effect.
In the prior art, the surface of the screen can be fogged in various ways, such as boiling, i.e. heating water to boiling to generate steam, and the steam covers the surface of the screen. The device is low in cost and continuous in fogging, but the device in the prior art cannot enable fog to uniformly cover the surface of the screen and easily form water drops on the surface of the screen, so that the detection accuracy is reduced.
In order to solve the above technical problems, as shown in fig. 3 and 4, in the mist generating mechanism 10 provided in the embodiment of the present invention, a product to be detected, i.e., a mobile phone 50, is placed between a temperature and humidity generating assembly 11 and a residual mist capturing assembly 14, and the temperature, flow rate, flow velocity, and flow direction of the mist are adjusted through interaction between the temperature and humidity generating assembly 11 and the residual mist capturing assembly 14, so that the surface of the product to be detected 50 is uniformly covered with the mist, and the accuracy of detection is improved.
Specifically, in an embodiment of the present invention, the temperature and humidity generating assembly 11 further includes a water container, a heating assembly, and a spray head assembly 111; wherein, water in the water tank 131 flows into the water container under the driving of the water pump, the heating assembly is fixedly arranged in the water container, the spray head assembly 111 is communicated with the water container, the water container generates water mist under the driving of the heating assembly, and the water mist is discharged from the spray head assembly 111.
In one embodiment of the present invention, the nozzle assembly 111 includes a plurality of stacked filter screens, and a distance between adjacent filter screens is set to a threshold value. The interval of the set threshold value between the adjacent filter screens can be adjusted according to specific conditions, and the intervals between a plurality of filter screens and the adjacent filter screens are used for adjusting the discharged flow of the water mist on the one hand, and are used for controlling the discharged flow rate of the water mist on the other hand, and can enable the water mist discharged from the spray head assembly 111 to be more uniform.
Furthermore, the filter screens are provided with a plurality of through holes, the circle centers of the through holes on the adjacent filter screens are not on the same straight line, the through holes on the adjacent filter screens are staggered in the vertical direction, the staggering degree of the through holes on the adjacent filter screens, namely the overlapping area of the through holes on the adjacent filter screens, can be set according to specific conditions, and the overlapping area of the through holes on the adjacent filter screens in the vertical direction is used for adjusting the flow of water mist discharge and the removal speed. Preferably, the material of the filter screen is metal, but not limited to metal.
In an embodiment of the present invention, the nozzle assembly 111 further includes a water absorption assembly, and the water absorption assembly is fixedly installed at the side of the plurality of filter screens. The absorbent member is preferably a sponge, but is not limited to a sponge. The sponge is used for absorbing water drops condensed on the filter screen, and the water drops are prevented from dropping on the mobile phone 50.
In one embodiment of the invention, when the handpiece 50 is positioned between the capture port 141 and the sprayer assembly 111, a gap exists between the capture port 141 and the handpiece 50 so that water mist enters the capture port 141 from the periphery of the handpiece 50 at the same time. In this embodiment, on the one hand, the external support, i.e. the transport rail, provides a gap between the capture opening 141 and the handpiece 50, and the plane of the capture opening is lower than the plane of the transport rail, so that a gap is provided between the capture opening and the handpiece. On the other hand, as shown in fig. 6, the upper surface of the catch port is on the same level as the lower surface of the conveying rail, and a gap may be provided between the catch port 141 and the cellular phone 50 by providing a notch in the catch port 141. A gap is formed between the catching port 141 and the hand piece 50 so that the mist discharged from the nozzle assembly 111 simultaneously enters the catching port 141 from the periphery of the hand piece 50, thereby allowing the surface of the hand piece 50 to uniformly receive the coverage of the mist.
In one embodiment of the invention, when the handpiece 50 is positioned between the capture port 141 and the showerhead assembly 111, the area of the capture port 141 is greater than the projected area of the handpiece 50 on the capture port 141. In the present embodiment, when the hand piece 50 is positioned above the capture port 141, a portion of the capture port 141 is not covered by the hand piece 50, so that the mist discharged from the head assembly 111 flows into the capture port 141 from the portion where the portion is not covered, to better control the flow direction, speed, and flow rate of the mist.
In an embodiment of the present invention, as shown in fig. 5, a guide plate 1411 is installed in the catching port 141, the guide plate 1411 is provided with a plurality of guide holes, and the mist discharged from the head assembly 111 flows through the catching port 141 through the plurality of guide holes. The guide holes are through holes, and the guide plate 1411 is arranged in the catching port 141, so that the airflow of the nozzle assembly 111 flowing to the catching port 141 is more uniform, and the water mist covering the surface of the mobile phone 50 is more uniform.
Further, the residual fog catching assembly 14 further comprises a residual fog recycling assembly, and the residual fog recycling assembly is communicated with the water tank 131; the mist discharged from the head unit 111 passes through the catching port 141 and the guide plate 1411, enters the remaining mist recovery unit, and flows into the water tank 131. The residual fog catching assembly 14 can adjust the flow direction, flow rate and flow speed of the water fog, can recycle the recovered residual fog by using the residual fog recovery assembly, and is communicated with the water tank 131 through the connecting pipe 12 at the bottom of the residual fog recovery assembly, so that the recovered residual fog is discharged into the water tank 131.
In an embodiment of the present invention, the temperature and humidity generating assembly 11 further includes a temperature sensor, and the temperature sensor is installed in the water container, so that the water in the water container is at a set threshold temperature, and the set threshold temperature range is greater than 65 ℃ and less than 95 ℃. The higher the temperature of the water, the faster the water evaporates and the larger the amount of evaporation, and the temperature threshold range of the temperature sensor is set in conjunction with the structures of the head assembly 111 and the residual mist capturing assembly 14. In the embodiment, the preferred temperature threshold range is greater than 65 ℃ and less than 95 ℃, when the temperature is 65 ℃, the water mist is evaporated slowly and the evaporation amount is small, the time for covering the mobile phone 50 with the water mist is long, and the detection efficiency is reduced; when the temperature is 95 ℃, the water mist is evaporated quickly, the evaporation amount is large, the requirements on the structures of the spray head assembly 111 and the residual mist catching assembly 14 are high, and the control difficulty on the flow speed, the flow rate and the flow direction of the water mist is large. The water temperature between 65 ℃ and 95 ℃ enables the water mist to uniformly cover the surface of the mobile phone 50 without increasing the structural complexity of the spray head assembly 111 and the residual mist catching assembly 14.
In the prior art, not only a common plane screen but also a curved screen exists, such as a mobile phone, and a part of the side edge of the mobile phone is also a part of the screen. When the defect detection is carried out on the curved screen, the side edge of the mobile phone is required to be covered by the mist and photographed.
Specifically, the fogging mechanism 10 described above can perform the mist coverage not only on the ordinary straight screen but also on the curved screen. As shown in fig. 7, a second camera and a third camera are further added to the mobile phone with the curved screen, and the second camera and the third camera are respectively and fixedly installed on two sides of the first camera to respectively photograph the upper side and two side edges of the mobile phone.
In an embodiment of the present invention, the detecting apparatus body 100 further includes an indicator light (not shown), the indicator light is fixedly installed on the base 40, and the indicator light is used for presenting the detecting result to the operator. The detection device body 100 includes an image processing system, and sends the acquired picture to the image processing system after the optical mechanism 30 takes a picture of the mobile phone 50, and the image processing system performs image analysis processing to obtain a detection result and presents the detection result through an indicator light; such as: the detection result is qualified, and the indicator light is turned on green; and if the detection result is unqualified, the indicator lamp is turned on to be red.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A detection device for surface defects of a screen, characterized by comprising a detection device body (100), said detection device body (100) comprising:
a base (40);
the conveying mechanism (20), the conveying mechanism (20) is fixedly arranged on the base platform (40), the conveying mechanism (20) comprises a driving assembly (22) and a conveying track (21), and products to be detected move along with the conveying track (21) under the driving force of the driving assembly (22);
the fog generating mechanism (10) is fixedly installed on the base platform (40), the fog generating mechanism (10) comprises a connecting pipe (12), a supply assembly, a temperature and humidity generating assembly (11) and a residual fog capturing assembly (14), the conveying rail (21) is located between the temperature and humidity generating assembly (11) and the residual fog capturing assembly (14) in the vertical direction, and the residual fog capturing assembly (14) is located below the conveying rail (21); wherein the content of the first and second substances,
the supply assembly comprises a water tank (131) and a water pump (132), and the water tank (131) is connected with the water pump (132) through the connecting pipe (12); the temperature and humidity generating assembly (11) is connected with the water pump (132) through the connecting pipe (12), water in the water tank (131) flows into the temperature and humidity generating assembly (11) under the driving of the water pump (132), and water mist is discharged after the temperature and humidity generating assembly (11) is heated;
the residual fog catching assembly (14) comprises an exhaust fan and a catching port (141), the catching port (141) is positioned below the temperature and humidity generating assembly (11), and a product to be detected is positioned between the catching port (141) and the temperature and humidity generating assembly (11); under the driving of the exhaust fan, water mist discharged from the temperature and humidity generating assembly (11) flows to the catching port (141), so that one part of the water mist covers the surface of a product to be detected, and the other part of the water mist flows into the catching port (141) from the side edge of the product to be detected;
the optical mechanism (30), the said optical mechanism (30) is fixed to said base (40), the said optical mechanism (30) and said fog-making mechanism (10) are set up adjacently; the optical mechanism (30) comprises a first camera (31), and the first camera (31) is located above the transmission mechanism (20) to photograph the product to be detected covered with the water mist.
2. The apparatus for detecting defects on the surface of a screen according to claim 1, wherein said temperature and humidity generating assembly (11) comprises:
a water container into which water in the water tank (131) flows by being driven by the water pump (132);
the heating assembly is fixedly arranged in the water container;
a nozzle assembly (111), wherein the nozzle assembly (111) is communicated with the water container, and the water mist generated in the water container is discharged through the nozzle assembly (111).
3. The apparatus for detecting defects on the surface of a screen according to claim 2, wherein said temperature and humidity generating assembly (11) further comprises a temperature sensor mounted in said water container so that the water in said water container is at a set threshold temperature ranging from greater than 65 ℃ to less than 95 ℃.
4. The apparatus for detecting surface defects of a screen according to claim 2, wherein the nozzle assembly (111) comprises a plurality of stacked filter screens, the plurality of filter screens are fixedly installed in the nozzle assembly (111), and a distance of a set threshold is provided between adjacent filter screens.
5. The equipment for detecting the surface defects of the screen according to claim 1, wherein when the product to be detected is positioned between the capturing opening (141) and the temperature and humidity generating assembly (11), a gap is formed between the capturing opening (141) and the product to be detected, so that the water mist enters the capturing opening (141) from the periphery of the product to be detected at the same time.
6. The apparatus for detecting defects on a surface of a screen according to claim 1 or 5, wherein when the product to be detected is located between the capturing opening (141) and the temperature and humidity generating assembly (11), the area of the capturing opening (141) is larger than the projection area of the product to be detected on the capturing opening (141).
7. The apparatus for detecting defects on a surface of a screen according to claim 1, wherein a guide plate (1411) is installed in the capturing port (141), the guide plate (1411) is provided with a plurality of guide holes, and the mist discharged from the temperature and humidity generating assembly (11) flows through the plurality of guide holes from the capturing port (141).
8. The apparatus for detecting defects on a surface of a screen according to claim 7, wherein said residual mist capturing assembly (14) further comprises a residual mist recovery assembly, said residual mist recovery assembly being in communication with said water tank (131); and the water mist discharged from the temperature and humidity generating assembly (11) enters the residual mist recycling assembly through the catching port (141) and the guide plate (1411) and flows into the water tank (131).
9. The apparatus for detecting defects on a surface of a screen according to claim 1, wherein the optical mechanism (30) further comprises a second camera (32) and a third camera (33), the second camera (32) and the third camera (33) being respectively located on two sides of the product to be detected for photographing the side edges of the product to be detected.
10. The inspection apparatus for screen surface defects according to claim 1, wherein said inspection apparatus body (100) further comprises an indicator lamp fixedly mounted on said base (40).
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| CN202110176127.9A CN112945977B (en) | 2021-02-09 | 2021-02-09 | Detection equipment for surface defects of screen |
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| CN202110176127.9A CN112945977B (en) | 2021-02-09 | 2021-02-09 | Detection equipment for surface defects of screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117405677A (en) * | 2023-12-14 | 2024-01-16 | 常州树杰塑业有限公司 | Plastic film crack detection device |
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| CN112945977B (en) | 2022-10-28 |
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