Display screen cleaning and wiping device and automatic detection equipment

Abstract

The utility model discloses a display screen cleaning and wiping device and automatic detection equipment, the device comprises a rack, and the rack is provided with a first driving element and a second driving element; the first cleaning assembly is arranged at the output end of the first driving element, and the first driving element drives the first cleaning assembly to do linear reciprocating motion in the horizontal direction so that the first dust-free cloth can conduct wet wiping on the display screen; and the second cleaning assembly is arranged at the output end of the second driving element, and the second driving element drives the second cleaning assembly to do linear reciprocating motion in the horizontal direction so that the second dust-free cloth can conduct dry wiping on the display screen. The device can perform secondary wiping on the surface of the display screen, so that the cleaning effect is improved, stains and foreign matters on the surface of the display screen are prevented from interfering a detection result, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens. More specifically, it relates to a display screen cleaning and wiping device and an automatic detection device. Background Art

[0002] The bonding process of a liquid crystal display module and a cover glass (CG) is an important step in the assembly process of a liquid crystal display screen. After the liquid crystal display module is bonded to the CG, it is necessary to detect the liquid crystal display screen. In order to prevent the contamination on the surface of the CG from affecting the detection result, it is necessary to clean and wipe the surface of the CG to remove possible stains. Currently, it is all done manually by dipping a dust-free cloth in alcohol to wipe the surface of the CG. Not only is the efficiency low, but it is also easy to miss wiping, the wiping is not comprehensive, and it is easy to cause dirt residue, affecting the detection result. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a display screen cleaning and wiping device and an automatic detection device, which can automatically clean and wipe the surface of the display screen.

[0004] According to one aspect of the utility model, a display screen cleaning and wiping device is provided, including:

[0005] A frame, on which a first driving element and a second driving element are provided;

[0006] A first cleaning component, arranged at the output end of the first driving element. The first driving element drives the first cleaning component to linearly reciprocate horizontally. The first cleaning component includes a plurality of first guide rollers, a first pressing head and a spray head. The spray head is used to spray the cleaning liquid on the first dust-free cloth, and the first pressing head is used to press the first dust-free cloth against the surface of the display screen between two adjacent first guide rollers, so that the first dust-free cloth can wet-wipe the display screen;

[0007] A second cleaning component, arranged at the output end of the second driving element. The second driving element drives the second cleaning component to linearly reciprocate horizontally. The second cleaning component includes a plurality of second guide rollers and a second pressing head. The second pressing head is used to press the second dust-free cloth against the surface of the display screen between two adjacent second guide rollers, so that the second dust-free cloth can dry-wipe the display screen.

[0008] Optionally, the first cleaning assembly further includes a first fixing plate, a first feeding end and a first receiving end disposed on the first fixing plate, and a first driving assembly disposed near the first receiving end. The first feeding end and the first receiving end are respectively connected to two ends of a first non-woven fabric. A plurality of first guiding rollers are spaced between the first feeding end and the first receiving end, and each first guiding roller is configured to carry the first non-woven fabric and is capable of rotating about its own central axis respectively to convey the first non-woven fabric from the first feeding end to the first receiving end. The first driving assembly is configured to drive the first non-woven fabric to be conveyed from the first feeding end to the first receiving end;

[0009] The second cleaning assembly further includes a second fixing plate, a second feeding end and a second receiving end disposed on the second fixing plate, and a second driving assembly disposed near the second receiving end. The second feeding end and the second receiving end are respectively connected to two ends of a second non-woven fabric. A plurality of second guiding rollers are spaced between the second feeding end and the second receiving end, and each second guiding roller is configured to carry the second non-woven fabric and is capable of rotating about its own central axis respectively to convey the second non-woven fabric from the second feeding end to the second receiving end. The second driving assembly is configured to drive the second non-woven fabric to be conveyed from the second feeding end to the second receiving end.

[0010] Optionally, the first driving assembly includes a first driving shaft and a first driven shaft disposed on the first fixing plate. The first driving shaft and the first driven shaft are capable of rotating about their own central axes respectively. The first non-woven fabric can be threaded between the first driving shaft and the first driven shaft during conveyance. The first driven shaft can be controlled to approach or move away from the first driving shaft to press the first non-woven fabric being conveyed between the first driving shaft and the first driven shaft;

[0011] The second driving assembly includes a second feeding driving shaft and a second feeding driven shaft disposed on the second fixing plate. The second feeding driving shaft and the second feeding driven shaft are capable of rotating about their own central axes respectively. The second non-woven fabric can be threaded between the second feeding driving shaft and the second feeding driven shaft during conveyance. The second feeding driven shaft can be controlled to approach or move away from the second feeding driving shaft to press the second non-woven fabric being conveyed between the second feeding driving shaft and the second feeding driven shaft.

[0012] Optionally, the first cleaning assembly further includes a first receiving counterweight block. The first receiving counterweight block is disposed between the first receiving end and the first driving assembly. Part of the first non-woven fabric is wound around the first receiving counterweight block to tension the first non-woven fabric;

[0013] The second cleaning assembly further includes a second material collecting counterweight, which is arranged between the second material collecting end and the second driving assembly. Part of the second non-dust cloth is wound around the second material collecting counterweight to tension the second non-dust cloth.

[0014] Optionally, the first cleaning assembly further includes a first touch switch. The first material collecting counterweight can contact the first touch switch, and the first material collecting end is configured to wind the first non-dust cloth in response to a signal sent by the first touch switch.

[0015] The second cleaning assembly further includes a second touch switch. The second material collecting counterweight can contact the second touch switch, and the second material collecting end is configured to wind the second non-dust cloth in response to a signal sent by the second touch switch.

[0016] Optionally, the first cleaning assembly further includes a first vertical driving element arranged on the first fixing plate. The first pressing head is arranged at the output end of the first vertical driving element, and the first vertical driving element is used to drive the first pressing head to lift and lower in the vertical direction to approach or move away from the first non-dust cloth.

[0017] The second cleaning assembly further includes a second vertical driving element arranged on the second fixing plate. The second pressing head is arranged at the output end of the second vertical driving element, and the second vertical driving element is used to drive the second pressing head to lift and lower in the vertical direction to approach or move away from the second non-dust cloth.

[0018] Optionally, a first pressing strip made of a soft material is provided at the end of the first pressing head, and the first pressing strip presses the first non-dust cloth against the surface of the display screen.

[0019] A second pressing strip made of a soft material is provided at the end of the second pressing head, and the second pressing strip presses the second non-dust cloth against the surface of the display screen.

[0020] Optionally, the first cleaning assembly further includes a first compensation assembly, which is arranged between the first pressing head and the first feeding end. The first compensation assembly is slidably arranged on the first fixing plate, and part of the first non-dust cloth is wound around the first compensation assembly. The first compensation assembly is used to tension the first non-dust cloth.

[0021] The second cleaning assembly further includes a second compensation assembly, which is arranged between the second pressing head and the second feeding end. The second compensation assembly is slidably arranged on the second fixing plate, and part of the second non-dust cloth is wound around the second compensation assembly. The second compensation assembly is used to tension the second non-dust cloth.

[0022] Optionally, a first feeding tray is provided at the first feeding end, and a first receiving tray is provided at the first receiving end. The first feeding tray is used for winding one end of the first non-woven fabric, and can rotate around its own central axis to realize the feeding of the first non-woven fabric. The first receiving tray is used for winding the other end of the first non-woven fabric, and can rotate around its own central axis to realize the receiving of the first non-woven fabric;

[0023] A second feeding tray is provided at the second feeding end, and a second receiving tray is provided at the second receiving end. The second feeding tray is used for winding one end of the second non-woven fabric, and can rotate around its own central axis to realize the feeding of the second non-woven fabric. The second receiving tray is used for winding the other end of the second non-woven fabric, and can rotate around its own central axis to realize the receiving of the second non-woven fabric.

[0024] According to another aspect of the present invention, an automatic detection device is provided, including

[0025] a transfer device, a loading device, the above-mentioned display screen cleaning and wiping device, a detection device, and an unloading device arranged in sequence along the first direction, wherein:

[0026] The loading device is used for transporting the workpiece to the transfer device;

[0027] The cleaning device is used for cleaning the workpiece before the workpiece is detected;

[0028] The detection device is used for detecting the workpiece;

[0029] The unloading device is used for transferring the workpiece out of the automatic detection device from the transfer device;

[0030] The transfer device is used for transporting the workpiece through the display screen cleaning and wiping device;

[0031] a control unit, which is respectively communicatively connected to the loading device, the display screen cleaning and wiping device, the detection device, and the unloading device; and

[0032] a human-computer interaction unit, which is communicatively connected to the control unit. The human-computer interaction unit is used for receiving a control signal and transmitting the control signal to the control unit. The control unit is used for correspondingly controlling the loading device, the display screen cleaning and wiping device, the detection device, and the unloading device to perform corresponding actions according to the control signal.

[0033] The beneficial effects of the present invention are as follows:

[0034] The display screen cleaning and wiping device and the automatic detection device of the present disclosure clean and wipe the display screen to be detected by arranging the display screen cleaning and wiping device upstream of the detection device, avoiding interference of stains and foreign objects on the surface of the display screen with the detection result and improving the accuracy of detection. And the display screen cleaning and wiping device includes a first cleaning component and a second cleaning component, which can wipe the surface of the display screen twice, with the first time being wet wiping and the second time being dry wiping, further improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The following further describes in detail the specific embodiments of the present invention with reference to the drawings.

[0036] Figure 1 The schematic diagram of the automatic detection device of the present invention is shown.

[0037] Figure 2 The structural schematic diagram of the wiping device of the present invention is shown.

[0038] Figure 3 The front view of the wiping device of the present invention is shown.

[0039] Figure 4 The structural schematic diagram of the first cleaning component of the present invention is shown.

[0040] Figure 5 The structural schematic diagram of the second cleaning component of the present invention is shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] In order to more clearly illustrate the present invention, the present invention will be further described below with reference to the preferred embodiments and the drawings. Similar components in the drawings are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not be used to limit the protection scope of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0043] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0044] The present utility model provides a display screen cleaning and wiping device and an automatic detection device, wherein the automatic detection device includes the display screen cleaning and wiping device. The automatic detection device is used to perform quality detection on the display screen to determine whether there are defects on the display screen, so that the display screen with defects on the surface can be timely removed before leaving the factory to avoid defective products with surface defects from entering the market. The display screen cleaning and wiping device is used to complete the wiping of the surface of the display screen before it is detected by the detection device, so that the dust or foreign objects on the display screen can be wiped clean before being transported to the detection device for detection, thus avoiding affecting the subsequent detection results of the display screen.

[0045] As Figure 1 shown, it is a schematic diagram of an automatic detection device 10, including a loading device 100, a display screen cleaning and wiping device 200, a detection device 300, a unloading device 400, a transfer device, a control unit 500, a human-machine interaction unit 600 and a host computer 700. Among them, the loading device 100, the display screen cleaning and wiping device 200, the detection device 300 and the unloading device 400 are arranged at intervals in sequence along the first direction (X direction in the figure), and the transfer device is used to transport the liquid crystal display module through the loading device 100, the display screen cleaning and wiping device 200, the detection device 300 and the unloading device 400 in sequence, and perform operations such as flipping the liquid crystal display module during the transportation process.

[0046] The loading device 100 is used to transport the liquid crystal display module to the transfer device. The display screen cleaning and wiping device 200 is used to clean and wipe the surface of the liquid crystal display module before it is detected by the detection device 300, so as to remove the dust and foreign matters adhered to its surface. The unloading device 400 is used to transport the liquid crystal display module from the transfer device to the detection station of the next process after the cleaning of the display screen cleaning and wiping device 200 is completed. The control unit 500 is respectively communicatively connected to the loading device 100, the display screen cleaning and wiping device 200 and the unloading device 400, and is used to control the loading device 100, the display screen cleaning and wiping device 200, the detection device 300 and the unloading device 400 to perform specific actions. Exemplarily, the control unit 500 can be a PLC control device or the like. The human-machine interaction unit 600 and the host computer 700 are respectively communicatively connected to the control unit 500. The human-machine interaction unit 600 has a touch screen. The operator can complete the setting of relevant parameters through the touch screen, so that the human-machine interaction unit 600 can receive the control signals sent by the operator. And the operator can also see the display of relevant information through the touch screen and perform manual operations according to the above relevant information. The host computer 700 is used to communicate with the human-machine interaction unit 600 and the control unit 500. Specifically, it generates control instructions according to the control signals received by the human-machine interaction unit 600 and sends the control instructions to the control unit 500. The control unit 500 is used to correspondingly control the loading device 100, the display screen cleaning and wiping device 200, the detection device 300 and the unloading device 400 to perform corresponding actions according to the corresponding control instructions, that is, to respectively control the loading device 100 to transport the liquid crystal display module to the transfer device, control the display screen cleaning and wiping device 200 to wipe the liquid crystal display module, control the detection device 300 to detect the liquid crystal display module according to whether the display screen cleaning and wiping device 200 has completed the cleaning of the liquid crystal display module, and control the unloading device 400 to transport the liquid crystal display module out of the automatic detection device 10.

[0047] It can be understood that the host computer 700 may not be provided, and the control unit 500 has the functions of the host computer 700, that is, the control unit 500 can directly generate control instructions according to the control signals to control the loading device 100, the display screen cleaning and wiping device 200, the detection device 300 and the unloading device 400 to perform corresponding actions, and the specific is not limited.

[0048] In one example, such as Figure 2 and Figure 3As shown in the figure, the display screen cleaning and wiping device includes a frame 210, a first cleaning component 220, and a second cleaning component 230. Among them, a first driving element 2101 and a second driving element are provided on the frame 210. The first cleaning component 220 is connected to the output end of the first driving element 2101, so that the first driving element 2101 can drive the first cleaning component 220 to reciprocate linearly in the horizontal direction. The second cleaning component 230 is connected to the output end of the second driving element, so that the second driving element can drive the second cleaning component 230 to reciprocate linearly in the horizontal direction. The first driving element 2101 and the second driving element can be cylinders or linear motors, etc.

[0049] The first cleaning component 220 and the second cleaning component 230 are arranged on the frame 210 at intervals in the first direction. The first direction is defined as the direction for conveying the display screen. The first cleaning component 220 performs the first cleaning and wiping on the surface of the display screen. Then the display screen is conveyed below the second cleaning component 230, and the second cleaning component 230 performs the second cleaning and wiping on the display screen. That is, the second cleaning component 230 is located downstream of the first cleaning component 220 along the conveying direction of the display screen.

[0050] The moving directions of the first cleaning component 220 and the second cleaning component 230 can be perpendicular to the first direction. That is to say, the first cleaning component 220 and the second cleaning component 230 wipe the surface of the display screen along the lateral direction of the conveying direction of the display screen respectively.

[0051] Specifically, as Figure 4 shown, the first cleaning component 220 includes a first fixing plate 2201, and a first feeding end 2202, a first receiving end 2203, a plurality of first guide rollers 2204, a first pressing head 2205, and a nozzle 2206 arranged on the first fixing plate 2201. The first feeding end 2202 and the first receiving end 2203 are respectively connected to both ends of the first non-woven fabric 1. The plurality of first guide rollers 2204 are arranged on the first fixing plate 2201 at intervals. Each first guide roller 2204 is used to carry the first non-woven fabric 1 and can rotate around its own central axis respectively to convey each part of the first non-woven fabric 1 from the first feeding end 2202 to the first receiving end 2203. The nozzle 2206 is used to spray the cleaning liquid stored inside it, such as alcohol or isopropyl alcohol, etc., onto the first non-woven fabric 1. The first pressing head 2205 is used to press the first non-woven fabric 1 against the surface of the display screen between two adjacent first guide rollers 2204, so that the first non-woven fabric 1 can perform the first wiping (i.e., wet wiping) on the display screen.

[0052] As Figure 5As shown in the figure, the second cleaning component 230 includes a second fixed plate 2301, and a second feeding end 2302, a second material collecting end 2303, a plurality of second guiding rollers 2304, and a first pressing head 2305 arranged on the second fixed plate 2301. The second feeding end 2302 and the second material collecting end 2303 are respectively connected to both ends of the second non-woven fabric 2. The plurality of second guiding rollers 2304 are arranged on the second fixed plate 2301 at intervals. Each second guiding roller 2304 is used to carry the second non-woven fabric 2 and can rotate around its own central axis respectively to convey each part of the second non-woven fabric 2 from the second feeding end 2302 to the second material collecting end 2303. The second pressing head 2305 is used to press the second non-woven fabric 2 onto the surface of the display screen between two adjacent second guiding rollers 2304, so that the second non-woven fabric 2 can perform a second wiping (i.e., dry wiping) on the display screen.

[0053] The beneficial effects of the present utility model are as follows:

[0054] 1. Improve the cleaning efficiency: The first driving element 2101 and the second driving element are respectively used to drive the first cleaning component 220 and the second cleaning component 230 to move, so as to wipe the surface of the display screen, greatly improving the cleaning efficiency and saving a lot of time.

[0055] 2. Avoid missed wiping: The cleaning and wiping device of the present utility model adopts two wiping operations, which can avoid the missed wiping situation that may occur in manual operation, making the cleaning more comprehensive without leaving stains, thus ensuring the accuracy of the detection results. The first cleaning component 220 and the second cleaning component 230 perform two wipes on the surface of the display screen, with the first being wet wiping and the second being dry wiping, further improving the cleaning effect.

[0056] 3. Precisely control the usage amount of the cleaning liquid: Before the first pressing head 2205 presses down the first non-woven fabric 1, the cleaning liquid is first sprayed on the first non-woven fabric 1, so that the usage amount of the cleaning liquid can be precisely controlled, neither too much nor too little, thus ensuring the cleaning effect.

[0057] 4. Reduce the damage to the surface of the display screen: The cleaning and wiping device of the present utility model uses non-woven fabric for cleaning. Compared with manual wiping, it can reduce the friction and pressure on the surface of the display screen, thereby reducing the damage to its surface and improving the product quality.

[0058] Further, referring again to Figure 4, the first cleaning assembly 220 further includes a first driving assembly disposed near the first material receiving end 2203. The first driving assembly is configured to drive the first non-woven cloth 1 to be conveyed from the first material feeding end 2202 to the first material receiving end 2203. The first driving assembly operates intermittently. After wiping one display screen, the first driving assembly can drive the first non-woven cloth 1 to be conveyed a certain distance so that the unused first non-woven cloth 1 can wipe the next display screen.

[0059] Specifically, the first driving assembly includes a first driving shaft 2207 and a first driven shaft 2208 disposed on the first fixing plate 2201. The first driving shaft 2207 and the first driven shaft 2208 can rotate about their respective central axes. The first non-woven cloth 1 can be threaded between the first driving shaft 2207 and the first driven shaft 2208 during conveyance. The first driven shaft 2208 can be controlled to approach or move away from the first driving shaft 2207 to press the conveyed first non-woven cloth between the first driving shaft 2207 and the first driven shaft 2208. That is, the first driving shaft 2207 and the first driven shaft 2208 can clamp the first non-woven cloth 1, so that when the first driving shaft 2207 rotates, the first non-woven cloth 1 is driven to be conveyed a certain distance.

[0060] The first cleaning assembly 220 further includes a first material receiving counterweight 2209. The first material receiving counterweight 2209 is disposed between the first material receiving end 2203 and the first driving assembly. A part of the first non-woven cloth 1 is wound around the first material receiving counterweight 2209. When the first driving assembly drives the first non-woven cloth 1 to move, the first material receiving counterweight 2209 drops a certain distance along with the first non-woven cloth 1, so that the first material receiving counterweight 2209 can tension the first non-woven cloth 1. A first touch switch 2210 is provided on the first fixing plate 2201. After the first material receiving counterweight 2209 contacts the first touch switch 2210, the first material receiving end 2203 can start to rotate in response to the signal sent by the first touch switch 2210, so as to wind up the first non-woven cloth 1. That is, the first material receiving end 2203 operates intermittently. It can start to rotate only after receiving the signal sent by the first touch switch 2210, and after rotating for a period of time, the first material receiving counterweight 2209 is pulled up to the initial position again.

[0061] Further, the first cleaning assembly 220 further includes a first vertical driving element 2211 disposed on the first fixing plate 2201. The first pressing head 2205 is connected to the output end of the first vertical driving element 2211. Exemplarily, the first vertical driving element 2211 can be a driving source such as a cylinder, a hydraulic cylinder or a ball screw, and is configured to drive the first pressing head 2205 to move up and down in the vertical direction to approach or move away from the first non-woven cloth 1.

[0062] In one example, a first pressing strip is provided at the end of the first pressing head 2205. The first pressing strip is made of a soft material, such as silica gel, etc. The first pressing strip can contact the first non-woven cloth 1 and drive the first non-woven cloth 1 to contact the surface of the display screen. The first pressing strip can achieve a buffering effect and avoid damage to the display screen due to pressure. Preferably, the cross-sectional shape of the second pressing strip is V-shaped, and the end with a smaller width contacts the second non-woven cloth 2.

[0063] Further, the first cleaning assembly 220 further includes a first compensation assembly 2212. The first compensation assembly 2212 is disposed between the first pressing head 2205 and the first feeding end 2202. The first compensation assembly 2212 is slidably disposed on the first fixing plate 2201, and a part of the first non-woven cloth 1 is wound around the first compensation assembly 2212. The first compensation assembly 2212 is used to tension the first non-woven cloth 1. When the first pressing head 2205 presses the first non-woven cloth 1 against the surface of the display screen, the first non-woven cloth 1 will elongate. After wiping the display screen, when the first pressing head 2205 moves upward, the first compensation assembly 2212 can move downward to tension the first non-woven cloth 1, thereby achieving the effect of compensating for the elongation of the first non-woven cloth 1.

[0064] Further, a first clamping assembly 2213 is further disposed between the first compensation assembly 2212 and the first feeding end 2202. The first clamping assembly 2213 can clamp the first non-woven cloth 1, so that the first non-woven cloth 1 cannot be conveyed out from the first feeding end 2202, and avoid the movement of the first non-woven cloth 1 when the first cleaning assembly 220 wipes the display screen. When it is necessary to convey the first non-woven cloth 1, the first clamping assembly 2213 can release the first non-woven cloth 1, so that the first non-woven cloth 1 can be conveyed.

[0065] Further, a first feeding tray 2214 is provided at the first feeding end 2202, and a first receiving tray 2215 is provided at the first receiving end 2203. Both the first feeding tray 2214 and the first receiving tray 2215 can rotate around their own central axes, and both ends of the first non-woven cloth 1 are wound around the first feeding tray 2214 and the first receiving tray 2215 respectively.

[0066] See again Figure 5 , the second cleaning assembly 230 further includes a second driving assembly disposed near the second receiving end 2303. The second driving assembly is used to drive the second non-woven cloth 2 to be conveyed from the second feeding end 2302 to the second receiving end 2303. The second driving assembly works intermittently. After wiping one display screen, the second driving assembly can drive the second non-woven cloth 2 to convey a certain distance, so that the unused second non-woven cloth 2 can wipe the next display screen.

[0067] Specifically, the second driving assembly includes a second driving shaft 2307 and a second driven shaft 2308 disposed on the second fixing plate 2301. The second driving shaft 2307 and the second driven shaft 2308 can rotate around their respective central axes. The second non-woven fabric 2 can be threaded between the second driving shaft 2307 and the second driven shaft 2308 during transportation. The second driven shaft 2308 can be controlled to approach or move away from the second driving shaft 2307 to press the second non-woven fabric 2 being transported between the second driving shaft 2307 and the second driven shaft 2308. That is, the second driving shaft 2307 and the second driven shaft 2308 can clamp the second non-woven fabric 2, so that when the second driving shaft 2307 rotates, the second non-woven fabric 2 is driven to be transported a certain distance.

[0068] The second cleaning assembly 230 further includes a second take-up counterweight 2309. The second take-up counterweight 2309 is disposed between the second take-up end 2303 and the second driving assembly. Part of the second non-woven fabric 2 is wound around the second take-up counterweight 2309. When the second driving assembly drives the second non-woven fabric 2 to move, the second take-up counterweight 2309 drops a certain distance along with the second non-woven fabric 2, so that the second take-up counterweight 309 can tension the second non-woven fabric 2. A second touch switch 2310 is provided on the second fixing plate 2301. After the second take-up counterweight 2309 contacts the second touch switch 2310, the second take-up end 2303 can start to rotate in response to the signal sent by the second touch switch 2310, so as to wind up the second non-woven fabric 2. That is, the second take-up end 2303 operates intermittently. It can start to rotate only when it receives the signal sent by the second touch switch 2310, and after rotating for a period of time, the second take-up counterweight 2309 is pulled back to the initial position.

[0069] Furthermore, the second cleaning assembly 230 further includes a first vertical driving element 2311 disposed on the second fixing plate 2301. The second pressing head 2305 is connected to the output end of the second vertical driving element 2311. Exemplarily, the second vertical driving element 2311 can be a driving source such as a cylinder, a hydraulic cylinder or a ball screw, etc., for driving the second pressing head 2305 to move up and down in the vertical direction to approach or move away from the second non-woven fabric 2.

[0070] In one example, a second pressing strip is provided at the end of the second pressing head 2305. The second pressing strip is made of a soft material, such as silicone, etc. The second pressing strip can contact the second non-woven fabric 2 and drive the second non-woven fabric 2 to contact the surface of the display screen. The second pressing strip can achieve a buffering effect to avoid damage to the display screen due to pressure. Preferably, the cross-sectional shape of the second pressing strip is V-shaped, and the end with a smaller width contacts the second non-woven fabric 2.

[0071] Further, the second cleaning component 230 further includes a second compensation component 2312. The second compensation component 2312 is disposed between the second pressing head 2305 and the second feeding end 2302. The second compensation component 2312 is slidably disposed on the second fixing plate 2301, and a part of the second non-woven fabric 2 is wound around the second compensation component 2312. The second compensation component 2312 is used to tension the second non-woven fabric 2. When the second pressing head 2305 presses the second non-woven fabric 2 against the surface of the display screen, the second non-woven fabric 2 will elongate. After the wiping of the display screen is completed and the second pressing head 2305 moves upward, the second compensation component 2312 can move downward to tension the second non-woven fabric 2, thereby achieving the effect of compensating for the elongation of the second non-woven fabric 2.

[0072] Further, a second clamping component 2313 is further disposed between the second compensation component 2312 and the second feeding end 2302. The second clamping component 2313 can clamp the second non-woven fabric 2, so that the second non-woven fabric 2 cannot be conveyed out from the second feeding end 2302, avoiding the movement of the second non-woven fabric 2 when the second cleaning component wipes the display screen. When it is necessary to convey the second non-woven fabric 2, the second clamping component 2313 can release the second non-woven fabric 2, so that the second non-woven fabric 2 can be conveyed.

[0073] Further, the second feeding end 2302 is provided with a second feeding tray 2314, and the second receiving end 2303 is provided with a second receiving tray 2315. Both the second feeding tray 2314 and the second receiving tray 2315 can rotate around their own central axes, and both ends of the second non-woven fabric 2 are wound around the second feeding tray 2314 and the second receiving tray 2315 respectively.

[0074] It can be understood that the first cleaning component 220 only has one more nozzle 2206 than the second cleaning component 230, and the rest of their structures are the same.

[0075] The wiping method of the above display screen cleaning and wiping device is as follows:

[0076] First, after the liquid crystal display module is transported to the transfer device by the loading device 100 of the automatic detection device 10, the transfer device conveys the display screen to the cleaning station where the display screen cleaning and wiping device 200 is located. When the display screen passes below the first cleaning component 220, the transfer device stops. The control unit 500 issues a control instruction to control the nozzle 2206 of the first cleaning component 220 to spray the cleaning liquid onto the first non-woven fabric 1. At the same time, the control unit 500 controls the first pressing head 2205 of the first cleaning component 220 to move downward so that the first non-woven fabric 1 fits onto the surface of the display screen to be cleaned, and controls the first driving element 2101 to move horizontally, thereby driving the first pressing head 2205 to move horizontally, so that the first non-woven fabric 1 performs a wet wipe on the surface of the display screen to be cleaned. Then, the first pressing head 2205 moves upward, away from the surface of the display screen, and the first compensation component 2212 moves downward to tension the first non-woven fabric 1. Finally, the first clamping component 2213 releases the first non-woven fabric 1, and the first driving component drives the first non-woven fabric 1 to convey a certain distance.

[0077] Next, the transplanting device starts and conveys the display screen to below the second cleaning component 230. The transfer device stops. The control unit 500 controls the second pressing head 2305 of the second cleaning component 230 to move downward so that the second non-woven fabric 2 fits onto the surface of the display screen, and controls the second driving element to move horizontally, thereby driving the second pressing head 2305 to move horizontally, so that the second non-woven fabric 2 performs a dry wipe on the surface of the display screen. Then, the second pressing head 2305 moves upward, away from the surface of the display screen, and the second compensation component 2312 moves downward to tension the second non-woven fabric 2. Finally, the second clamping component 2313 releases the second non-woven fabric 2, and the second driving component drives the second non-woven fabric 2 to convey a certain distance.

[0078] In this way, by arranging the above-mentioned display screen cleaning and wiping device 200 upstream of the detection device 300 in the automatic detection device 10, it is possible to automatically clean the surface of the liquid crystal display module without manual assistance before the liquid crystal display module is detected. Furthermore, it is possible to clean the dust or foreign objects on the surface of the liquid crystal display module, reduce the misjudgment rate of the detection of the liquid crystal display module product by the detection device 300, reduce the labor intensity of workers, improve work efficiency, and save labor costs.

[0079] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is impossible to enumerate all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A display screen cleaning and wiping device, characterized in that: include: A frame, wherein the frame is provided with a first driving element and a second driving element; a first cleaning assembly, arranged at an output end of the first driving element, the first driving element drives the first cleaning assembly to reciprocate in a horizontal direction, the first cleaning assembly comprises a plurality of first guide rollers, a first pressure head and a nozzle, the nozzle is used to spray a cleaning liquid on the first dust-free cloth, the first pressure head is used to press the first dust-free cloth onto the surface of the display screen between two adjacent first guide rollers, so that the first dust-free cloth can wet-wipe the display screen; The second cleaning component is arranged at the output end of the second driving element. The second driving element drives the second cleaning component to move back and forth in a straight line in the horizontal direction. The second cleaning component includes a plurality of second guide rollers and a second pressure head. The second pressure head is used to press the second dust-free cloth onto the surface of the display screen between two adjacent second guide rollers so that the second dust-free cloth can dry wipe the display screen.

2. The display screen cleaning and wiping device according to claim 1, characterized in that: The first cleaning assembly further includes a first fixed plate, a first discharge end and a first receiving end provided on the first fixed plate, and a first driving assembly provided near the first receiving end, the first discharge end and the first receiving end are respectively connected to two ends of the first dust-free cloth, a plurality of first guide rollers are arranged at intervals between the first discharge end and the first receiving end, and each of the first guide rollers is used to carry the first dust-free cloth and can rotate around its own central axis to transport the first dust-free cloth from the first discharge end to the first receiving end, and the first driving assembly is used to drive the first dust-free cloth to be transported from the first discharge end to the first receiving end; The second cleaning component also includes a second fixed plate, a second discharge end and a second receiving end arranged on the second fixed plate, and a second driving component arranged near the second receiving end, the second discharge end and the second receiving end are respectively connected to the two ends of the second dust-free cloth, a plurality of second guide rollers are arranged at intervals between the second discharge end and the second receiving end, and each of the second guide rollers is used to carry the second dust-free cloth and can rotate around its own central axis to transport the second dust-free cloth from the second discharge end to the second receiving end, and the second driving component is used to drive the second dust-free cloth to be transported from the second discharge end to the second receiving end.

3. The display screen cleaning and wiping device according to claim 2, characterized in that: The first driving assembly includes a first driving shaft and a first driven shaft provided on the first fixing plate, the first driving shaft and the first driven shaft can respectively rotate around their own central axes, the first dust-free cloth can be passed between the first driving shaft and the first driven shaft during conveying, and the first driven shaft can be controlled to approach or move away from the first driving shaft to press the first dust-free cloth being conveyed between the first driving shaft and the first driven shaft; The second driving assembly includes a second feeding driving shaft and a second feeding driven shaft arranged on the second fixed plate, the second feeding driving shaft and the second feeding driven shaft can respectively rotate around their own central axes, the second dust-free cloth can be passed between the second feeding driving shaft and the second feeding driven shaft during conveying, and the second feeding driven shaft can be controlled to approach or move away from the second feeding driving shaft to press the second dust-free cloth being conveyed between the second feeding driving shaft and the second feeding driven shaft.

4. The display screen cleaning and wiping device according to claim 2, characterized in that: The first cleaning assembly further includes a first material receiving counterweight block, which is disposed between the first material receiving end and the first driving assembly, and a portion of the first dust-free cloth is wound around the first material receiving counterweight block to tension the first dust-free cloth; The second cleaning component also includes a second material receiving counterweight block, which is arranged between the second material receiving end and the second driving component. Part of the second dust-free cloth is wound around the second material receiving counterweight block to tension the second dust-free cloth.

5. The display screen cleaning and wiping device according to claim 4, characterized in that: The first cleaning assembly further includes a first touch switch, the first material receiving counterweight block can contact the first touch switch, and the first material receiving end is configured to reel in the first dust-free cloth in response to a signal sent by the first touch switch; The second cleaning component also includes a second touch switch, the second material receiving counterweight block can contact the second touch switch, and the second material receiving end is configured to reel in the second dust-free cloth in response to a signal sent by the second touch switch.

6. The display screen cleaning and wiping device according to claim 1, characterized in that: The first cleaning assembly further includes a first vertical driving element disposed on the first fixing plate, the first pressing head is disposed at an output end of the first vertical driving element, and the first vertical driving element is used to drive the first pressing head to rise and fall in a vertical direction to approach or move away from the first dust-free cloth; The second cleaning component also includes a second vertical driving element arranged on the second fixed plate, the second pressure head is arranged at the output end of the second vertical driving element, and the second vertical driving element is used to drive the second pressure head to rise and fall in the vertical direction to approach or move away from the second dust-free cloth.

7. The display screen cleaning and wiping device according to claim 1, characterized in that: A first pressing strip made of a soft material is provided at the end of the first pressing head, and the first pressing strip presses the first dust-free cloth onto the surface of the display screen; A second pressing strip made of a soft material is disposed at the end of the second pressing head, and the second pressing strip presses the second dust-free cloth onto the surface of the display screen.

8. The display screen cleaning and wiping device according to claim 2, characterized in that: The first cleaning component further includes a first compensation component, which is disposed between the first pressure head and the first discharge end, and is slidably disposed on the first fixed plate, and the first dust-free cloth is partially wound around the first compensation component, and the first compensation component is used to tension the first dust-free cloth; The second cleaning component also includes a second compensation component, which is arranged between the second pressure head and the second discharge end, the second compensation component can be slidably arranged on the second fixed plate, and the second dust-free cloth is partially wound around the second compensation component, and the second compensation component is used to tension the second dust-free cloth.

9. The display screen cleaning and wiping device according to any one of claims 1 to 8, characterized in that: The first discharge end is provided with a first discharge tray, and the first receiving end is provided with a first receiving tray, the first discharge tray is used for winding one end of the first dust-free cloth, and can rotate around its own central axis to discharge the first dust-free cloth, and the first receiving tray is used for winding the other end of the first dust-free cloth, and can rotate around its own central axis to collect the first dust-free cloth; The second discharge end is provided with a second discharge tray, and the second receiving end is provided with a second receiving tray. The second discharge tray is used for winding one end of the second dust-free cloth, and can rotate around its own central axis to discharge the second dust-free cloth. The second receiving tray is used for winding the other end of the second dust-free cloth, and can rotate around its own central axis to receive the second dust-free cloth.

10. An automatic detection device, characterized in that: It comprises a transfer device, a loading device arranged in sequence along the first direction, a display screen cleaning and wiping device according to any one of claims 1 to 9, a detection device and a unloading device, wherein: The loading device is used to transport the workpiece to the transfer device; The cleaning device is used to clean the workpiece before the workpiece is inspected; The detection device is used to detect the workpiece; The unloading device is used to transfer the workpiece from the transfer device out of the automatic detection equipment; The transfer device is used to transfer the workpiece through the display screen cleaning and wiping device; A control unit, which is communicatively connected to the loading device, the display screen cleaning and wiping device, the detection device and the unloading device; and A human-machine interaction unit is communicatively connected to the control unit, the human-machine interaction unit is used to receive a control signal and transmit the control signal to the control unit, the control unit is used to control the loading device, the display screen cleaning and wiping device, the detection device and the unloading device to perform corresponding actions according to the control signal.

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