A notebook computer appearance detection line

Abstract

The utility model relates to notebook computer detection technical field, concretely relates to a notebook computer appearance detection line, including first conveying line and detection unit, detection unit includes industrial video camera, light transmission plate, drive unit and wiping roller, industrial video camera is provided with three, light transmission plate is rectangular structure, the end surface of light transmission plate is parallel with the detection end surface of industrial video camera, and light transmission plate sets up in the front of industrial video camera detection end, drive unit sets up in one side of light transmission plate, and drive unit is used for driving light transmission plate reciprocating movement along the length direction of light transmission plate, wiping roller is provided with three groups and corresponds with three industrial video cameras one by one, is equipped with two wiping rollers in each group, two wiping rollers arrange along the length direction of light transmission plate, and two wiping rollers are located at the both sides of industrial video camera detection end respectively, and wiping roller can be with the end portion of light transmission plate far from industrial video camera sliding fit. The utility model guarantees the image collection definition, guarantees the accuracy of detection result.

Description

Technical Field

[0001] This utility model relates to the field of laptop computer testing technology, specifically to a laptop computer appearance testing line. Background Technology

[0002] After a laptop is manufactured, its three main surfaces need to be inspected: the display screen, the back panel, and the keypad.

[0003] Chinese Patent Publication No. CN223154831 U discloses a visual inspection device for a laptop computer casing, comprising: a frame, and a conveying mechanism, a straightening mechanism, an imaging mechanism, and a light source mechanism disposed on the frame; the conveying mechanism is used to convey the laptop computer casing to be inspected in a first direction; the straightening mechanism is located at the top of the front end of the conveying mechanism and is used to straighten the position of the laptop computer casing conveyed on the conveying mechanism in the first direction; the imaging mechanism is located at the rear end of the conveying mechanism, and the lens of the imaging mechanism is aligned with the conveying mechanism; the imaging mechanism is used to capture images of the laptop computer casing; the light source mechanism is located at the rear end of the conveying mechanism and is aligned with the conveying mechanism; the light source mechanism is used to cooperate with the imaging mechanism to provide supplementary lighting for the imaging mechanism when the imaging mechanism captures images.

[0004] While the above solution can achieve multi-directional detection in a single operation, it lacks a positioning mechanism. During detection, the laptop may be positioned outside the detection area of ​​the visual inspection device. Therefore, a positioning mechanism is needed to adjust the laptop based on the actual detection situation. Furthermore, since the laptop's appearance is primarily inspected visually, dust on the laptop surface can affect the results. Dust can also accumulate on the end of the visual inspection device, leading to misjudgments. Additionally, ambient light also affects the visual inspection device's detection, potentially causing misjudgments. Utility Model Content

[0005] To address the aforementioned issues, a laptop computer appearance inspection line is provided. By incorporating a light-transmitting plate at the front of the industrial camera inspection end, along with a drive unit and a wiping roller, rack, and gear structure, highly efficient dust prevention is achieved at the inspection end. The drive unit moves the light-transmitting plate back and forth along its length, consistently blocking the industrial camera inspection end and preventing direct dust adhesion. As the light-transmitting plate moves, the wiping rollers on both sides slide against its end face to remove dust. Simultaneously, the rack on the side of the light-transmitting plate drives the gear at the end of the wiping roller to rotate, causing the wiping roller to rotate. This avoids one-sided wear and dust residue on the wiping roller while maintaining the continuous cleanliness of the light-transmitting plate.

[0006] To address the problems of the prior art, this utility model provides a laptop computer appearance inspection line, including a first conveyor line for conveying laptop computers and an inspection unit for visual inspection of laptop computers;

[0007] The detection unit includes an industrial camera, a light-transmitting plate, a drive unit, and a wiping roller;

[0008] There are three industrial cameras. When the laptop is in the detection position, the detection ends of the three industrial cameras are facing the laptop's display screen, back panel, and keypad, respectively.

[0009] The light-transmitting plate has a rectangular structure, and its end face is parallel to the detection end face of the industrial camera. The light-transmitting plate is set at the front of the detection end of the industrial camera.

[0010] The driving unit is located on one side of the light-transmitting plate, and the driving unit is used to drive the light-transmitting plate to move back and forth along the length of the light-transmitting plate.

[0011] There are three sets of wiping rollers, each corresponding to one of the three industrial cameras. Each set has two wiping rollers, which are arranged along the length of the light-transmitting plate. The two wiping rollers are located on both sides of the detection end of the industrial camera. The wiping rollers can slide and engage with the end of the light-transmitting plate away from the industrial camera.

[0012] Preferably, the detection unit further includes a rack and a gear;

[0013] The rack is fixedly installed on the side of the light-transmitting plate along the length of the light-transmitting plate;

[0014] The gear is fixedly mounted at the end of the wiping roller and can mesh with the rack.

[0015] Preferably, the detection unit also includes a housing, in which all three industrial cameras are housed;

[0016] The box is fitted onto the first conveyor line, and openings are provided on the two opposite side walls of the box. The first conveyor line passes through the two openings in a horizontal direction, and a light-blocking curtain is provided on the opening.

[0017] Preferably, an air blowing unit is provided inside the housing, the air blowing unit including an air blowing head and a first linear actuator;

[0018] Multiple air nozzles are provided and arranged vertically, with the air nozzles pointing towards the laptop located inside the housing;

[0019] The first linear actuator is located on one side of the air blowing head and is used to drive the air blowing head to move along the width direction of the housing.

[0020] Preferably, the air blowing unit also includes a rotating arm and a motor;

[0021] One end of the rotating arm is fixedly connected to the vertically arranged air blowing heads. The end of the rotating arm connected to the air blowing heads is called the planetary end, and the end of the rotating arm not connected to the air blowing heads is called the sun end.

[0022] The motor is located at the lower part of the rotating arm, and the output end of the motor is fixedly connected to the sun end of the rotating arm. The motor is located at the end of the first linear driver.

[0023] Preferably, there is a distance between the lower part of the blackout curtain and the upper surface of the first conveyor line.

[0024] Preferably, a positioning unit is provided inside the housing. The positioning unit includes a position sensor, which is located at the top of the first conveyor line. An industrial camera forms a detection area inside the housing, and the position sensor is located on one side of the detection area.

[0025] Preferably, the positioning unit further includes a push plate and a second linear driver;

[0026] The pusher plate moves along the width of the first conveyor line and is positioned on one side of the detection area;

[0027] The second linear actuator is located on one side of the push plate and is used to drive the push plate to move.

[0028] Preferably, the positioning unit further includes a limiting frame, which is located on the opposite side of the push plate. The limiting frame and the push plate are arranged along the width direction of the first conveyor line and limit the width direction of the laptop computer.

[0029] Preferably, a plurality of rollers are arranged along the length of the first conveyor line on the side of the limiting frame near the push plate, and the rollers are rotatably mounted on the limiting frame.

[0030] The advantages of this utility model compared to the prior art are:

[0031] 1. This utility model achieves efficient dust prevention at the detection end of an industrial camera by setting a light-transmitting plate at the front of the camera and combining it with a drive unit, wiping rollers, racks, and gears in a coordinated structure. The drive unit moves the light-transmitting plate back and forth along its length, always blocking the detection end of the industrial camera and preventing dust from directly adhering to it. When the light-transmitting plate moves, the wiping rollers on both sides slide and cooperate with its end face to wipe away dust. At the same time, the rack on the side of the light-transmitting plate drives the gear at the end of the wiping roller to rotate, causing the wiping roller to rotate. This not only avoids one-sided wear and dust residue on the wiping roller, but also keeps the light-transmitting plate continuously clean. Even if dust is generated during equipment cleaning, it can prevent dust from contaminating the detection end, ensuring the clarity of image acquisition and the accuracy of the detection results.

[0032] 2. The air blowing unit and light-shielding curtain design within the chamber improve the cleaning effect on the laptop screen and stabilize the testing environment. Multiple air blowing heads are arranged vertically and moved along the width of the chamber by a first linear driver. A motor-driven rotating arm adjusts the air blowing direction, allowing for comprehensive cleaning of the device screen and back panel. The airflow direction is opposite to the device's conveying direction, ensuring dust is discharged from the chamber inlet and preventing dust from spreading inside. Simultaneously, the light-shielding curtain at the chamber opening blocks external light, and a gap is left between the lower part of the curtain and the first conveyor line, facilitating airflow discharge without compromising the light-shielding effect, providing stable lighting conditions for testing.

[0033] 3. The two-step positioning unit and the roller design of the limiting frame ensure both detection accuracy and protection of the equipment's appearance. After the position sensor detects the equipment entering the detection area, the first conveyor line pauses to complete initial positioning. Subsequently, the second linear driver drives the push plate to push the equipment towards the limiting frame, achieving precise positioning and ensuring consistent shooting angles for the industrial cameras. The rollers on the limiting frame roll in conjunction with the equipment as it moves out of the detection area, preventing scratches from the sides of the limiting frame and improving detection accuracy while reducing the risk of damage to the equipment's appearance. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of a laptop computer appearance inspection line according to this utility model.

[0035] Figure 2 This is a three-dimensional schematic diagram of a laptop computer appearance inspection line after removing part of the light-blocking curtain. Figure 1 .

[0036] Figure 3 This utility model relates to a laptop computer appearance inspection line. Figure 2 A magnified view of a portion of point A in the middle.

[0037] Figure 4 This is a three-dimensional schematic diagram of a laptop computer appearance inspection line after removing part of the light-blocking curtain. Figure 2 .

[0038] Figure 5 This utility model relates to a laptop computer appearance inspection line. Figure 4 A magnified view of a portion of point B in the middle.

[0039] Figure 6 This is a three-dimensional schematic diagram of a laptop computer appearance inspection line after removing part of the light-blocking curtain. Figure 3 .

[0040] Figure 7 This utility model relates to a laptop computer appearance inspection line. Figure 6 A magnified view of a portion of point C.

[0041] Figure 8 This is a three-dimensional schematic diagram of a laptop computer appearance inspection line of this utility model, with the light-blocking curtain, first conveyor line, and second conveyor line removed.

[0042] Figure 9 This utility model relates to a laptop computer appearance inspection line. Figure 8 A magnified view of a portion of point D.

[0043] Figure 10 This utility model relates to a laptop computer appearance inspection line. Figure 8 A magnified view of a portion of point E in the middle.

[0044] The diagram is labeled as follows: 1. Detection unit; 11. Industrial camera; 12. Light-transmitting plate; 121. Rack; 13. Drive unit; 14. Wiping roller; 141. Gear; 15. Housing; 151. Opening; 152. Light-blocking curtain; 16. Air blowing unit; 161. Air blowing head; 162. First linear actuator; 163. Rotating arm; 17. Positioning unit; 171. Position sensor; 172. Push plate; 173. Second linear actuator; 174. Limit frame; 175. Roller; 2. Laptop computer; 3. First conveyor line; 4. Second conveyor line. Detailed Implementation

[0045] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0046] Reference Figures 1-4 and Figures 6-8 A laptop computer appearance inspection line includes a first conveyor line 3 for conveying a laptop computer 2 and an inspection unit 1 for visual inspection of the laptop computer 2;

[0047] The detection unit 1 includes an industrial camera 11, a light-transmitting plate 12, a drive unit 13, and a wiping roller 14;

[0048] There are three industrial cameras 11. When the laptop 2 is in the detection position, the detection ends of the three industrial cameras 11 are respectively facing the display screen, back panel and keypad of the laptop 2.

[0049] The light-transmitting plate 12 has a rectangular structure, and the end face of the light-transmitting plate 12 is parallel to the detection end face of the industrial camera 11. The light-transmitting plate 12 is located at the front of the detection end of the industrial camera 11.

[0050] The driving unit 13 is disposed on one side of the light-transmitting plate 12, and the driving unit 13 is used to drive the light-transmitting plate 12 to reciprocate along the length direction of the light-transmitting plate 12.

[0051] There are three sets of wiping rollers 14, each corresponding to one of the three industrial cameras 11. Each set has two wiping rollers 14, which are arranged along the length of the light-transmitting plate 12. The two wiping rollers 14 are located on both sides of the detection end of the industrial camera 11. The wiping rollers 14 can slide and cooperate with the end of the light-transmitting plate 12 away from the industrial camera 11.

[0052] In the visual inspection of laptop computer exteriors, the accuracy of the inspection results depends entirely on the clarity of the visual capture, and the cleanliness of the environment and the equipment are key variables affecting this core aspect. Current inspection processes primarily identify defects by capturing surface details of the device using high-definition lenses. This method is extremely sensitive to various interference factors; even slight obstructions or changes in lighting can lead to inspection deviations.

[0053] When dust adheres to the surface of the laptop, it directly interferes with the detection results in two ways. On the one hand, dust particles may cover up minor scratches, color differences, and other real flaws on the surface of the laptop, preventing the detection system from capturing effective defect information and causing "missed detections." On the other hand, on light-colored or reflective surfaces, dust may also form irregular reflective spots or shadows, which may be misidentified by the algorithm as dents, stains, or other problems, leading to "false detections." This not only affects detection efficiency but also increases the time and manpower costs of subsequent re-inspections.

[0054] Meanwhile, the end components of the visual inspection device, especially the lens and light source, also face the problem of dust accumulation. These components are exposed to the inspection environment for a long time, and airborne dust can easily adhere to the lens surface, causing problems such as blurring and light spots in the acquired image, directly reducing image resolution. When dust adheres to the light source area, it changes the projection angle and intensity of the light, disrupting the uniformity of light in the inspection area, further interfering with the algorithm's judgment logic of defects, and causing the false judgment rate to continue to rise.

[0055] To address the issue of dust on the device surface, some scenarios attempt to clean it simultaneously during the inspection process. However, this approach can introduce new problems. Whether using airflow to blow away dust or wiping with a brush, the cleaning process removes and disperses dust that was originally attached to the laptop surface, creating a short-term, high-concentration dust environment. This dispersed dust accelerates the contamination rate at the edge of the visual inspection device, especially the lens area, which is more prone to attracting suspended particles. This ultimately creates a vicious cycle of "cleaning-dust-secondary contamination," making inspection errors even more pronounced.

[0056] Therefore, to avoid the above problems, it is necessary to optimize the existing appearance inspection line for laptops 2. This ensures that the inspection end of the industrial camera 11 in the appearance inspection line of this utility model will not be contaminated by dust. Even if the laptop 2 is cleaned simultaneously during the inspection process, causing dust to fly around, dust will not adhere to the inspection end of the industrial camera 11, thus guaranteeing the accuracy of the inspection results from the industrial camera 11. Regarding the specific structure and working principle of this utility model:

[0057] A second conveyor line 4 is provided at the front end of the first conveyor line 3. Since the appearance inspection line is an assembly line, all laptops 2 will be arranged sequentially on the first conveyor line 3 and the second conveyor line 4. It is worth noting that the first conveyor line 3 can only carry one laptop 2 in the inspection state at a time. When the first conveyor line 3 carries a laptop 2 and is in the inspection state, the first conveyor line 3 is in a prohibited state. If a laptop 2 on the second conveyor line 4 is about to enter the first conveyor line 3, the second conveyor line 4 stops running, so that the laptop 2 stays on the second conveyor line 4. When the laptop 2 completes the inspection, the first conveyor line 3 starts, and the second conveyor line 4 starts simultaneously. At this time, the first conveyor line 3 and the second conveyor line 4 have the same conveying speed. The first conveyor line 3 pulls the laptop 2 on it out of the inspection area of ​​the industrial camera 11, and the second conveyor line 4 transports the laptop 2 back to the first conveyor line 3, and the first conveyor line 3 transports the entering laptop 2 to the inspection area of ​​the industrial camera 11. After cleaning and repositioning the laptop 2, three industrial cameras 11 visually inspect the laptop 2's display screen, back panel, and keypad.

[0058] During visual inspection, the light-transmitting plate 12 reciprocates under the drive of the drive unit 13, always remaining in front of the detection end of the industrial camera 11. Wiping rollers 14 are arranged on both sides of the detection end of the industrial camera 11, along the length of the light-transmitting plate 12. Therefore, as the light-transmitting plate 12 reciprocates along its length, the wiping rollers 14 wipe the end face of the light-transmitting plate 12, removing dust adhering to it. Because the light-transmitting plate 12 continuously reciprocates under the drive of the drive unit 13, the wiping rollers 14 continuously wipe the end face of the light-transmitting plate 12, keeping it constantly clean. This reduces the probability of misjudgment caused by dust adhering to the detection end of the industrial camera 11, improving the accuracy of the inspection results.

[0059] It is worth noting that when the laptop 2 is in the detection position mentioned above, it refers to the position of the laptop 2 on the first conveyor line 3 after positioning and adjustment when the laptop 2 is in the detection area of ​​the industrial camera 11. The positioning unit 17 for adjusting the position of the laptop 2 will be described later. In addition, the driving unit 13 for driving the light-transmitting plate 12 can be selected according to the actual situation, such as a reciprocating drive mechanism, a linear driver, etc., which are all existing technologies and will not be described in detail here.

[0060] Reference Figure 7 The detection unit 1 also includes a rack 121 and a gear 141;

[0061] The rack 121 is fixedly disposed on the side of the light-transmitting plate 12 along the length direction of the light-transmitting plate 12;

[0062] Gear 141 is fixedly mounted at the end of wiping roller 14, and gear 141 can mesh with rack 121.

[0063] Without gears 141 and racks 121, although the reciprocating light-transmitting plate 12 can be continuously wiped by the wiping roller 14, the wiping roller 14 always slides in the same position with the light-transmitting plate 12, resulting in higher wear on one side of the wiping roller 14. Dust and residue easily accumulate on this side, and after prolonged use, the wiping roller 14 may scratch the end face of the light-transmitting plate 12. Making the wiping roller 14 rotate can overcome these problems. Since two wiping rollers 14 are provided at the detection end of an industrial camera 11, and the light-transmitting plate 12 always covers the front of the detection end of the industrial camera 11 during its reciprocating movement. Therefore, when the rack 121 moves synchronously with the light-transmitting plate 12, one of the gears 141 is engaged with the rack 121 on one side of the light-transmitting plate 12. The rack 121 drives the gear 141 to rotate, which in turn causes the wiping roller 14 to rotate. At this time, when the wiping roller 14 contacts the end face of the light-transmitting plate 12, the circumference of the rotating wiping roller 14 can contact the end face of the light-transmitting plate 12. This not only improves the cleaning effect of the wiping roller 14 on the light-transmitting plate 12 and avoids the accumulation of dust in a single position on the wiping roller 14, but also reduces the wear of the wiping roller 14 during use.

[0064] Reference Figures 1-3 The detection unit 1 also includes a housing 15, in which three industrial cameras 11 are housed.

[0065] The housing 15 is mounted on the first conveyor line 3. Openings 151 are provided on the two opposite side walls of the housing 15. The first conveyor line 3 passes through the two openings 151 in a horizontal direction. A light-blocking curtain 152 is provided on the opening 151.

[0066] By providing two openings 151 on the housing 15, the laptop 2 is first conveyed into the housing 15 through one opening 151 by the first conveyor line 3. After inspection, the laptop 2 is then conveyed out through the other opening 151 by the first conveyor line 3. It is worth noting that since each opening 151 is equipped with a light-blocking curtain 152, the curtains are opened when the laptop 2 is conveyed into or removed from the housing 15 by the first conveyor line 3. The light-blocking curtains 152 ensure that the three industrial cameras 11 are not affected by ambient light when visually inspecting the laptop 2, thus guaranteeing the accuracy of the inspection results.

[0067] Reference Figure 5 and Figure 6 An air blowing unit 16 is provided inside the housing 15. The air blowing unit 16 includes an air blowing head 161 and a first linear driver 162.

[0068] Multiple air nozzles 161 are provided and arranged vertically, with the air nozzles 161 pointing towards the laptop 2 located in the housing 15.

[0069] The first linear actuator 162 is disposed on one side of the air blowing head 161 and is used to drive the air blowing head 161 to move along the width direction of the housing 15.

[0070] Since the laptop 2 is in the open state during visual inspection, if the air blower 161 is fixed in position, one side of the laptop 2 cannot be cleaned by the air blower 161. That is, if the air blower 161 cleans the display screen of the laptop 2, it cannot clean the back panel of the laptop 2, and vice versa. To overcome the above problem, a first linear driver 162 is provided. Through the driving of the first linear driver 162, the air blower 161 can clean both the display screen and the back panel of the laptop 2.

[0071] Reference Figure 5 The air blowing unit 16 also includes a rotating arm 163 and a motor;

[0072] One end of the rotating arm 163 is fixedly connected to the vertically arranged air blowing head 161. The end of the rotating arm 163 connected to the air blowing head 161 is called the planetary end, and the end of the rotating arm 163 not connected to the air blowing head 161 is called the sun end.

[0073] The motor is located at the lower part of the rotating arm 163, and the output end of the motor is fixedly connected to the sun end of the rotating arm 163. The motor is located at the end of the first linear driver 162.

[0074] While the first linear actuator 162 can move the air head 161 to different sides of the laptop 2, it cannot change the air blowing direction of the air head 161, resulting in poor air blowing effect. With the addition of a motor and a rotating arm 163, the motor drives the rotating arm 163 to rotate, allowing the air blowing direction of the air head 161 to be freely changed. This ensures that when the first linear actuator 162 moves the air head 161 to different sides of the laptop 2, the air head 161 blows air towards the laptop 2, improving the cleaning effect on the laptop 2.

[0075] Reference Figure 1 There is a distance between the lower part of the blackout curtain 152 and the upper surface of the first conveyor line 3.

[0076] Because there is a distance between the lower part of the light-shielding curtain 152 and the upper end of the first conveyor line 3, the gas blown out by the air blower 161 can be discharged between the light-shielding curtain 152 and the first conveyor line 3, which avoids the light-shielding curtain 152 being lifted when the airflow is discharged from the opening 151 of the box 15, thus reducing the influence of external ambient light on the detection environment inside the box 15.

[0077] Furthermore, when the air blower 161 cleans the laptop 2, the dust adhering to the laptop 2 is blown away by the airflow. Since the air blower 161 is located near the opening 151 of the housing 15 for discharging the laptop 2, the airflow from the air blower 161 is unidirectional within the housing 15; that is, the direction of the airflow generated by the air blower 161 is opposite to the transport direction of the laptop 2. Thus, the dust blown away from the laptop 2 does not circulate and float within the housing 15, but is discharged from the opening 151 on one side of the housing 15 under the action of the airflow. The opening 151 is used for the laptop 2 to enter the housing 15. This improves the cleaning effect on the laptop 2, avoids a large amount of dust remaining inside the housing 15 after cleaning, ensures the cleanliness of the inside of the housing 15, and also reduces the cleaning pressure on the light-transmitting plate 12.

[0078] Reference Figure 5 and Figure 8 A positioning unit 17 is provided inside the housing 15. The positioning unit 17 includes a position sensor 171. The position sensor 171 is located on the upper part of the first conveyor line 3. The industrial camera 11 forms a detection area inside the housing 15, and the position sensor 171 is located on one side of the detection area.

[0079] The position sensor 171 can detect the laptop 2 entering the detection area. When one side of the laptop 2 is detected by the position sensor 171, the first conveyor line 3 stops conveying, thereby completing the initial positioning of the laptop 2.

[0080] Reference Figure 10The positioning unit 17 also includes a push plate 172 and a second linear driver 173;

[0081] The push plate 172 is moved along the width direction of the first conveyor line 3 and is positioned on one side of the detection area;

[0082] The second linear actuator 173 is disposed on one side of the push plate 172 and is used to drive the push plate 172 to move.

[0083] After initial positioning, the second linear actuator 173 drives the push plate 172 to perform secondary correction on the laptop 2, ensuring that the laptop 2 is completely within the detection area. The second linear actuator 173 is preferably a servo electric cylinder.

[0084] Reference Figure 9 The positioning unit 17 also includes a limiting frame 174, which is located on the opposite side of the push plate 172. The limiting frame 174 and the push plate 172 are arranged along the width direction of the first conveyor line 3 and limit the width direction of the laptop computer 2.

[0085] After initial positioning by position sensor 171, push plate 172 pushes laptop 2 so that one side of laptop 2 contacts limit frame 174, thereby completing the positioning of laptop 2.

[0086] Reference Figure 9 Multiple rollers 175 arranged along the length of the first conveyor line 3 are provided on the side of the limiting frame 174 near the push plate 172. The rollers 175 are rotatably mounted on the limiting frame 174.

[0087] After the laptop computer 2 is inspected, the first conveyor line 3 carries the inspected laptop computer 2 away from the inspection area. At this time, the side of the laptop computer 2 closest to the limiting frame 174 rolls with the roller 175. By setting the roller 175 on the limiting frame 174, the laptop computer 2 is prevented from being scratched by the side of the limiting frame 174 when it is removed from the inspection area.

[0088] Working principle: Laptop 2 first enters the second conveyor line 4 to queue, and then waits to enter the first conveyor line 3. Since the first conveyor line 3 can only carry one laptop 2 in the testing state at a time, when there is a laptop 2 on the first conveyor line 3 and it is in the testing state, the first conveyor line 3 stops running. If there is a laptop 2 about to enter the second conveyor line 4, the second conveyor line 4 also stops running, allowing the laptop 2 to remain on the second conveyor line 4. After the testing is completed, the first conveyor line 3 and the second conveyor line 4 start synchronously and at the same speed. The first conveyor line 3 pulls the tested laptop 2 out of the testing area of ​​the industrial camera 11, and the second conveyor line 4 then transports the device to be tested to the first conveyor line 3, and then the first conveyor line 3 sends it to the testing area.

[0089] When the laptop 2 is in the detection position, the air blowing unit 16 inside the chamber moves the air blowing head 161 via the first linear driver 162, and adjusts the direction in conjunction with the motor-driven rotating arm 163 to clean the dust on the surface of the equipment from all directions. The airflow direction is opposite to the conveying direction, so that the dust is discharged from the inlet and avoids dust from spreading inside the chamber. The positioning unit 17 uses the position sensor 171 for initial positioning, and then the second linear driver 173 drives the push plate 172 to push the equipment to the limit frame 174 to complete the precise positioning.

[0090] After positioning, the detection ends of the three industrial cameras 11 face the display screen, back panel, and keypad of the laptop 2, respectively. To prevent dust from affecting image acquisition, each industrial camera 11 has a rectangular light-transmitting plate 12 at the front of its detection end. The end face of the light-transmitting plate 12 is parallel to the detection end face of the industrial camera 11, and a drive unit 13 on one side of the light-transmitting plate 12 drives it to reciprocate along its length. At the same time, each industrial camera 11 has two sets of wiping rollers 14, which are arranged along the length of the light-transmitting plate 12 and located on both sides of the detection end. They can slide and engage with the end of the light-transmitting plate 12 away from the industrial camera 11. When the light-transmitting plate 12 moves, the wiping rollers 14 continuously wipe away the dust on their end faces. In addition, a rack 121 fixed along the length of the side of the light-transmitting plate 12 meshes with a gear 141 at the end of the wiping roller 14, causing the wiping roller 14 to rotate, preventing one-sided wear and dust accumulation on the wiping roller 14, and further ensuring the cleanliness of the light-transmitting plate 12.

[0091] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the appended claims.

Claims

1. A laptop computer appearance inspection line, comprising a first conveyor line (3) for conveying a laptop computer (2) and an inspection unit (1) for visually inspecting the laptop computer (2); Its features are, The detection unit (1) includes an industrial camera (11), a light-transmitting plate (12), a drive unit (13), and a wiping roller (14); There are three industrial cameras (11). When the laptop (2) is in the detection position, the detection ends of the three industrial cameras (11) are facing the display screen, back panel and keypad of the laptop (2) respectively. The light-transmitting plate (12) has a rectangular structure. The end face of the light-transmitting plate (12) is parallel to the detection end face of the industrial camera (11). The light-transmitting plate (12) is set at the front of the detection end of the industrial camera (11). The driving unit (13) is disposed on one side of the light-transmitting plate (12), and the driving unit (13) is used to drive the light-transmitting plate (12) to reciprocate along the length direction of the light-transmitting plate (12); There are three sets of wiping rollers (14) that correspond one-to-one with the three industrial cameras (11). Each set has two wiping rollers (14). The two wiping rollers (14) are arranged along the length of the light-transmitting plate (12) and are located on both sides of the detection end of the industrial camera (11). The wiping rollers (14) can slide and cooperate with the end of the light-transmitting plate (12) away from the industrial camera (11).

2. The laptop computer appearance inspection line according to claim 1, characterized in that, The detection unit (1) also includes a rack (121) and a gear (141); The rack (121) is fixedly installed on the side of the light-transmitting plate (12) along the length direction of the light-transmitting plate (12); The gear (141) is fixedly mounted at the end of the wiping roller (14), and the gear (141) can mesh with the rack (121).

3. The laptop computer appearance inspection line according to claim 1, characterized in that, The detection unit (1) also includes a housing (15), and three industrial cameras (11) are all installed inside the housing (15); The housing (15) is fitted onto the first conveyor line (3). Openings (151) are provided on the two opposite side walls of the housing (15). The first conveyor line (3) passes through the two openings (151) in the horizontal direction. A light-blocking curtain (152) is provided on the opening (151).

4. The laptop computer appearance inspection line according to claim 3, characterized in that, An air blowing unit (16) is provided inside the housing (15). The air blowing unit (16) includes an air blowing head (161) and a first linear driver (162). Multiple air nozzles (161) are provided and arranged vertically, and the air nozzles (161) point towards the laptop (2) located in the housing (15); The first linear actuator (162) is located on one side of the air blowing head (161) and is used to drive the air blowing head (161) to move along the width direction of the housing (15).

5. A laptop computer appearance inspection line according to claim 4, characterized in that, The blowing unit (16) also includes a rotating arm (163) and a motor; One end of the rotating arm (163) is fixedly connected to the vertically arranged air blowing head (161). The end of the rotating arm (163) connected to the air blowing head (161) is called the planetary end, and the end of the rotating arm (163) not connected to the air blowing head (161) is called the sun end. The motor is located at the lower part of the rotating arm (163), and the output end of the motor is fixedly connected to the sun end of the rotating arm (163). The motor is located at the end of the first linear driver (162).

6. A laptop computer appearance inspection line according to claim 4, characterized in that, There is a distance between the lower part of the blackout curtain (152) and the upper surface of the first conveyor line (3).

7. A laptop computer appearance inspection line according to claim 3, characterized in that, A positioning unit (17) is provided inside the housing (15). The positioning unit (17) includes a position sensor (171). The position sensor (171) is located on the upper part of the first conveyor line (3). An industrial camera (11) forms a detection area inside the housing (15). The position sensor (171) is located on one side of the detection area.

8. A laptop computer appearance inspection line according to claim 7, characterized in that, The positioning unit (17) also includes a push plate (172) and a second linear driver (173); The push plate (172) is moved along the width direction of the first conveyor line (3) and set on one side of the detection area; The second linear actuator (173) is located on one side of the push plate (172) and is used to drive the push plate (172) to move.

9. A laptop computer appearance inspection line according to claim 8, characterized in that, The positioning unit (17) also includes a limiting frame (174), which is located on the opposite side of the push plate (172). The limiting frame (174) and the push plate (172) are arranged along the width direction of the first conveyor line (3) and limit the width direction of the laptop (2).

10. A laptop computer appearance inspection line according to claim 9, characterized in that, Multiple rollers (175) arranged along the length of the first conveyor line (3) are provided on the side of the limiting frame (174) near the push plate (172). The rollers (175) are rotatably mounted on the limiting frame (174).

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