Display screen defect detection device with rapid positioning function

Abstract

The utility model relates to a display screen defect detection device capable of fast positioning, which comprises a conveying line, an industrial camera and an infrared sensor, a U-shaped mounting plate is mounted on the upper side of the conveying line, and the industrial camera and the infrared sensor are respectively mounted at the top of the inner side of the U-shaped mounting plate. Limiting plates A are arranged on the two sides, in the width direction, of the upper surface of the conveying line correspondingly, connecting rods A are connected to the upper surfaces of the limiting plates A, two penetrating grooves A are formed in the top of the U-shaped mounting plate, and the connecting rods A correspond to the penetrating grooves A; two limiting plates B are arranged on the upper side of the conveying line, the limiting plate A is arranged on the inner sides of the two limiting plates B, and the included angle between each limiting plate B and the limiting plate A is 90 degrees. Under the action of the two driving mechanisms, the two limiting plates B and the two limiting plates A move inwards at the same time to form a rectangle, and the display screen is wrapped in the rectangle, so that the purpose of quickly positioning the display screen is achieved, and the detection precision of the industrial camera is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen detection, in particular to a fast-positioning display screen defect detection device. Background Art

[0002] Display refers to an output device used to display images or text on electronic devices, such as televisions, computer monitors, smart phones, tablets, and handheld game consoles. These devices usually use liquid crystal, organic light-emitting diodes (OLED) or other technologies to achieve image display and information display functions. With the continuous development of technology, the types and sizes of display screens are also increasing and changing, providing people with more and more convenient ways of visual experience. Display screens need to be defect-detected during production to ensure product quality, reduce risks, save costs, and enhance brand reputation.

[0003] When inspecting display screens, the display screen is usually placed on a conveyor and transported to the inspection position and then stopped, and defect detection is performed using an industrial camera. However, when the display screen stops, the LCD screen will shake and shift due to inertia, causing the industrial camera to be unable to accurately aim at the display screen, thereby affecting the inspection accuracy. Utility Model Content

[0004] The utility model aims to provide a display screen defect detection device capable of improving detection accuracy and fast positioning.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows.

[0006] A fast positioning display screen defect detection device comprises a conveyor line, an industrial camera and an infrared sensor, wherein a U-shaped mounting plate is installed on the upper side of the conveyor line, and an industrial camera and an infrared sensor are respectively installed on the top of the inner side of the U-shaped mounting plate, and limit plates A are arranged on both sides of the upper surface of the conveyor line in the width direction, and a connecting rod A is connected to the upper surface of the limit plate A, and two through grooves A are arranged on the top of the U-shaped mounting plate, and the connecting rod A corresponds to the through grooves A; two limit plates B are arranged on the upper side of the conveyor line, and the limit plates A are arranged on the inner sides of the two limit plates B, and the angle between the limit plates B and the limit plates A is ninety degrees, and the upper surface of the limit plate B is connected to the connecting rod B, and the side wall of the U-shaped mounting plate is arranged with two through grooves B, and the connecting rod B corresponds to the through groove B, and the U-shaped mounting plate Driving mechanisms are provided on the top and side surfaces, and the two driving mechanisms can respectively drive the two connecting rods A and the two connecting rods B to move in opposite directions at the same time; the driving mechanism includes a shell arranged on the outer surface of the U-shaped mounting plate, and a threaded rod with a pair of reverse threads is rotatably connected inside the shell, and a motor is installed on the outer surface of the shell, and the output shaft of the motor is connected to the threaded rod, and a pair of nut seats are installed on the threaded rod, and the two nut seats are respectively installed on the reverse threads, and the ends of the two connecting rods A and the ends of the two connecting rods B are respectively connected to the two nut seats; an electric push rod is installed on the side surface of the U-shaped mounting plate, and the end of the telescopic end of the electric push rod is connected to the shell arranged on the side surface of the U-shaped mounting plate, and a control panel is installed on the side surface of the U-shaped mounting plate; a connecting mechanism is provided between the limit plate A and the connecting rod A.

[0007] It can be seen that when the display screen is transported to the bottom of the industrial camera on the conveyor line, the infrared sensor sends a signal to the control panel to control the conveyor line to stop running, and then the shell connected to it is driven down by the electric push rod, thereby driving the two limit plates B to descend, surrounding the display screen on the inside, and then through the action of the two driving mechanisms, the two limit plates B and the two limit plates A move inward at the same time to form a rectangle and wrap the display screen therein, thereby achieving the purpose of quickly positioning the display screen and improving the detection accuracy of the industrial camera, and through the setting of the connecting mechanism, limit plates A of different sizes can be replaced, so that display screens of different specifications and sizes can be quickly positioned according to production needs, and the application range is wide.

[0008] Furthermore, the connecting mechanism includes a connecting groove opened at the bottom of the connecting rod A, a connecting block is installed on the upper surface of the limit plate A, the connecting block is adapted to the connecting groove, a positioning hole is opened on the top of the connecting block, an installation groove is opened inside the connecting rod A, an insertion rod is arranged inside the installation groove, the insertion rod is adapted to the positioning hole, a push block is installed on the top of the insertion rod, and the push block extends to the outside of the connecting rod A.

[0009] When it is necessary to replace the limit plate A, the push block can be pushed upward, which can drive the insertion rod to be pulled out of the positioning hole, and the limit plate A can be removed immediately. When installing a new limit plate A, the push block is also pushed upward to drive the bottom of the insertion rod to retract into the installation groove, and then the connecting block is inserted into the connecting groove, and then the push block is released to insert the insertion rod into the positioning hole to fix the limit plate A, thereby achieving the purpose of replacing the limit plate A and facilitating the rapid positioning of display screens of different specifications.

[0010] Furthermore, a shaft shoulder is provided on the outer surface of the insertion rod, and a spring is sleeved on the outer surface of the insertion rod, and two ends of the spring are respectively in contact with the inner wall of the limiting plate A and the shaft shoulder.

[0011] By setting the shaft shoulder and the spring, a downward force can be always applied to the insertion rod, so that the insertion rod can be more stably inserted into the positioning hole, thereby ensuring the stability of the installation of the limit plate A.

[0012] Furthermore, the opposing surfaces of the two limit plates A and the opposing surfaces of the two limit plates B are both provided with rubber pads.

[0013] The rubber pad can provide a buffer for the display screen, thereby preventing the limit plate A and the limit plate B from making hard contact with the display screen, thereby preventing the display screen from being damaged.

[0014] Furthermore, a slide groove is provided on the outer surface of the U-shaped mounting plate in the vertical direction, a slider is provided inside the slide groove, and an end of the slider is connected to a shell provided on the side surface of the U-shaped mounting plate.

[0015] By setting the slide groove and the slider, the housing can be made to slide up and down more stably and reliably.

[0016] Further, the outer surface of the spring is coated with anti-rust paint.

[0017] By applying anti-rust paint, the spring can be prevented from rusting and corroding, thus increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the partial structure of the U-shaped mounting plate area in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the driving mechanism in the utility model;

[0021] Figure 4 for Figure 2 A is an enlarged schematic diagram;

[0022] Figure 5 It is a structural schematic diagram of the connecting mechanism in the utility model.

[0023] In the figure: 100, conveyor line; 101, U-shaped mounting plate; 102, industrial camera; 103, infrared sensor; 104, limit plate A; 105, connecting rod A; 106, through slot A; 107, limit plate B; 108, connecting rod B; 109, through slot B; 110, electric push rod; 111, control panel; 200, driving mechanism; 201, housing; 202, threaded rod; 203, motor; 204, nut seat; 300, connecting mechanism; 301, connecting slot; 302, connecting block; 303, positioning hole; 304, mounting slot; 305, plug rod; 306, push block; 400, shaft shoulder; 401, spring; 500, rubber pad; 600, slide slot; 601, slider. DETAILED DESCRIPTION

[0024] The utility model is described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-5As shown, a fast positioning display screen defect detection device includes a conveyor line 100, an industrial camera 102 and an infrared sensor 103. A U-shaped mounting plate 101 is installed on the upper side of the conveyor line 100. The industrial camera 102 and the infrared sensor 103 are installed on the top of the inner side of the U-shaped mounting plate 101. The upper surface of the conveyor line 100 is located on both sides of the width direction thereof. The upper surface of the limiting plate A104 is connected to a connecting rod A105. The top of the U-shaped mounting plate 101 is provided with a Two through grooves A106, the connecting rod A105 corresponds to the through groove A106; two limit plates B107 are arranged on the upper side of the conveyor line 100, and the limit plate A104 is arranged on the inner side of the two limit plates B107, and the angle between the limit plate B107 and the limit plate A104 is ninety degrees, and the upper surface of the limit plate B107 is connected with a connecting rod B108, and the side wall of the U-shaped mounting plate 101 is provided with two through grooves B109, and the connecting rod B108 corresponds to the through groove B109, and the U-shaped mounting plate 101 The top and side surfaces of the U-shaped mounting plate 101 are both provided with driving mechanisms 200, and the two driving mechanisms 200 can respectively drive the two connecting rods A105 and the two connecting rods B108 to move in opposite directions simultaneously; the driving mechanism 200 comprises a shell 201 arranged on the outer surface of the U-shaped mounting plate 101, a threaded rod 202 having a pair of reverse threads is rotatably connected inside the shell 201, a motor 203 is installed on the outer surface of the shell 201, the output shaft of the motor 203 is connected to the threaded rod 202, and a pair of nut seats 202 are installed on the threaded rod 202. 04, two nut seats 204 are respectively installed on the reverse threads, and the ends of the two connecting rods A105 and the ends of the two connecting rods B108 are respectively connected to the two nut seats 204; an electric push rod 110 is installed on the side surface of the U-shaped mounting plate 101, and the end of the telescopic end of the electric push rod 110 is connected to the shell 201 arranged on the side surface of the U-shaped mounting plate 101, and a control panel 111 is installed on the side surface of the U-shaped mounting plate 101; a connecting mechanism 300 is arranged between the limit plate A104 and the connecting rod A105.

[0026] When using the device, first, the electric push rod 110 drives the shell 201 connected to it to move upward, so that there is a gap between the limit plate B107 and the conveyor line 100 to ensure that the display screen can pass through the gap, and then the display screen is placed on the conveyor line 100 for transportation. When the display screen is transported to the bottom of the industrial camera 102 and is located between the two limit plates B107, the infrared sensor 103 sends a signal to the control panel 111, so that the control panel 111 controls the conveyor line 100 to stop running. Then the electric push rod 110 drives the shell 201 connected to it to descend, and then drives the two limit plates B107 to descend, surrounds the display screen inside, and then starts the two motors 203 at the same time. The motor 203 drives the threaded rod 202 to rotate, which can bring The two nut seats 204 dynamically installed on its surface move inward at the same time, so that the two limit plates B107 and the two limit plates A104 move inward at the same time to form a rectangle and wrap the display screen therein, thereby achieving the purpose of quickly positioning the display screen and improving the detection accuracy of the industrial camera 102. When the detection is completed, the two motors 203 rotate in the opposite direction, driving the two limit plates B107 and the two limit plates A104 away from each other, and starting the electric push rod 110 to drive the two to move upward, and finally starting the conveyor line 100 to drive the display screen to continue conveying, and through the setting of the connecting mechanism 300, the limit plates A104 of different sizes can be replaced, so that display screens of different specifications and sizes can be quickly positioned according to production needs, and the application range is wide.

[0027] Specifically, the connecting mechanism 300 includes a connecting groove 301 provided at the bottom of the connecting rod A105, a connecting block 302 is installed on the upper surface of the limiting plate A104, the connecting block 302 is adapted to the connecting groove 301, a positioning hole 303 is provided on the top of the connecting block 302, a mounting groove 304 is provided inside the connecting rod A105, an insert rod 305 is provided inside the mounting groove 304, the insert rod 305 is adapted to the positioning hole 303, a push block 306 is installed on the top of the insert rod 305, and the push block 306 extends to the outside of the connecting rod A105, when the limiting plate A104 needs to be replaced When installing a new limiting plate A104, the pushing block 306 is pushed upward to drive the insert rod 305 to be pulled out from the positioning hole 303, and the limiting plate A104 can be removed immediately. When installing a new limiting plate A104, the pushing block 306 is also pushed upward to drive the bottom of the insert rod 305 to retract into the installation slot 304, and then the connecting block 302 is inserted into the connecting slot 301, and then the pushing block 306 is released to insert the insert rod 305 into the positioning hole 303 to fix the limiting plate A104, thereby achieving the purpose of replacing the limiting plate A104 and facilitating the rapid positioning of display screens of different specifications.

[0028] Specifically, a shoulder 400 is provided on the outer surface of the insertion rod 305, and a spring 401 is sleeved on the outer surface of the insertion rod 305. The two ends of the spring 401 are respectively abutted against the inner wall of the limiting plate A104 and the shoulder 400. Through the setting of the shoulder 400 and the spring 401, a downward force can always be applied to the insertion rod 305, so that the insertion rod 305 can be more stably inserted into the positioning hole 303, thereby ensuring the stability of the installation of the limiting plate A104.

[0029] Specifically, rubber pads 500 are provided on the opposite surfaces of the two limit plates A104 and the opposite surfaces of the two limit plates B107. The rubber pads 500 can be provided to buffer the display screen, thereby preventing the limit plates A104 and B107 from making hard contact with the display screen and causing damage to the display screen.

[0030] Specifically, a slide groove 600 is provided on the outer surface of the U-shaped mounting plate 101 in the vertical direction, a slider 601 is provided inside the slide groove 600, and the end of the slider 601 is connected to the shell 201 provided on the side surface of the U-shaped mounting plate 101. Through the setting of the slide groove 600 and the slider 601, the shell 201 can slide up and down more stably and reliably.

[0031] Specifically, the outer surface of the spring 401 is coated with anti-rust paint. The anti-rust paint can prevent the spring 401 from rusting and corroding, thereby increasing its service life.

[0032] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A fast positioning display screen defect detection device, comprising a conveyor line (100), an industrial camera (102) and an infrared sensor (103), characterized in that: A U-shaped mounting plate (101) is installed on the upper side of the conveyor line (100), an industrial camera (102) and an infrared sensor (103) are respectively installed on the top of the inner side of the U-shaped mounting plate (101), and limit plates A (104) are arranged on both sides of the upper surface of the conveyor line (100) in the width direction thereof, and a connecting rod A (105) is connected to the upper surface of the limit plate A (104), and two through grooves A (106) are provided on the top of the U-shaped mounting plate (101), and the connecting rod A (105) corresponds to the through grooves A (106); Two limit plates B (107) are arranged on the upper side of the conveyor line (100), and the limit plate A (104) is arranged on the inner side of the two limit plates B (107), and the angle between the limit plate B (107) and the limit plate A (104) is ninety degrees, the upper surface of the limit plate B (107) is connected with a connecting rod B (108), the side wall of the U-shaped mounting plate (101) is provided with two through grooves B (109), and the connecting rod B (108) corresponds to the through grooves B (109), and the top and side surfaces of the U-shaped mounting plate (101) are both provided with driving mechanisms (200), and the two driving mechanisms (200) can respectively drive the two connecting rods A (105) and the two connecting rods B (108) to move in opposite directions at the same time; The driving mechanism (200) comprises a shell (201) arranged on the outer surface of the U-shaped mounting plate (101), a threaded rod (202) having a pair of reverse threads being rotatably connected inside the shell (201), a motor (203) being mounted on the outer surface of the shell (201), an output shaft of the motor (203) being connected to the threaded rod (202), a pair of nut seats (204) being mounted on the threaded rod (202), two of the nut seats (204) being respectively mounted on the reverse threads, and ends of the two connecting rods A (105) and ends of the two connecting rods B (108) being respectively connected to the two nut seats (204); An electric push rod (110) is installed on the side surface of the U-shaped mounting plate (101); the end of the telescopic end of the electric push rod (110) is connected to a housing (201) arranged on the side surface of the U-shaped mounting plate (101); and a control panel (111) is installed on the side surface of the U-shaped mounting plate (101); A connecting mechanism (300) is provided between the limiting plate A (104) and the connecting rod A (105).

2. The fast positioning display screen defect detection device according to claim 1, characterized in that: The connecting mechanism (300) includes a connecting groove (301) opened at the bottom of the connecting rod A (105); a connecting block (302) is installed on the upper surface of the limiting plate A (104); the connecting block (302) is adapted to the connecting groove (301); a positioning hole (303) is opened on the top of the connecting block (302); an installation groove (304) is opened inside the connecting rod A (105); an insertion rod (305) is arranged inside the installation groove (304); the insertion rod (305) is adapted to the positioning hole (303); a push block (306) is installed on the top of the insertion rod (305), and the push block (306) extends to the outside of the connecting rod A (105).

3. A fast positioning display screen defect detection device according to claim 2, characterized in that: The outer surface of the insertion rod (305) is provided with a shoulder (400), and the outer surface of the insertion rod (305) is sleeved with a spring (401), and the two ends of the spring (401) are respectively in contact with the inner wall of the limiting plate A (104) and the shoulder (400).

4. The fast positioning display screen defect detection device according to claim 3, characterized in that: The opposing surfaces of the two limit plates A (104) and the opposing surfaces of the two limit plates B (107) are both provided with rubber pads (500).

5. The fast positioning display screen defect detection device according to claim 4, characterized in that: The outer surface of the U-shaped mounting plate (101) is provided with a slide groove (600) in a vertical direction, a slider (601) is provided inside the slide groove (600), and an end of the slider (601) is connected to a shell (201) provided on the side surface of the U-shaped mounting plate (101).

6. The fast positioning display screen defect detection device according to claim 5, characterized in that: The outer surface of the spring (401) is coated with anti-rust paint.

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