CN219455657U - Cleaning device and automatic detection equipment - Google Patents

Abstract

The utility model relates to a cleaning device and automatic detection equipment. The automatic detection equipment comprises a cleaning device, the cleaning device comprises a frame, a plurality of guide rollers, a first cleaning assembly and a second cleaning assembly, wherein the guide rollers are arranged on the frame at intervals, each guide roller is used for bearing and conveying cleaning cloth, the first cleaning assembly is provided with a first pressure head and a cleaning spray head, the cleaning spray head is used for spraying cleaning liquid on the cleaning cloth, the first pressure head is used for attaching the cleaning cloth to a workpiece so as to wet the workpiece, thereby reducing the labor intensity of workers, improving the working efficiency and saving the labor cost. The second cleaning component is arranged at the downstream of the first cleaning component and is provided with a second pressure head, the second pressure head is used for attaching dry cleaning cloth to the workpiece so as to dry and wipe the workpiece, and therefore the surface of the workpiece can be wiped dry and further wiped clean, and the phenomenon that the detection result is affected by the undried cleaning liquid when the workpiece flows into the detection device for detection is avoided.

Description

Cleaning device and automatic detection equipment

Technical Field

The utility model relates to the technical field of detection of liquid crystal display modules, in particular to a cleaning device and automatic detection equipment.

Background

The liquid crystal display module needs to perform various detection, such as electric detection, mura detection, AOI detection, appearance detection, aging detection and the like before leaving the factory, so as to achieve the purpose of determining that the product is qualified. In the layout of an automated production line of a liquid crystal display module, a plurality of stations are respectively used for detecting the different items of the liquid crystal display module. Because the liquid crystal display module is not produced in a dust-free environment, dust or foreign matters are usually attached to the surface of the liquid crystal display module before the liquid crystal display module is detected, so that the surface of the liquid crystal display module is required to be cleaned before the liquid crystal display module is detected, and the influence on the detection result of the detection module is reduced.

At present, the traditional method for cleaning the liquid crystal display module mainly relies on manual work to clean, specifically, an operator uses alcohol and dust-free cloth to wipe a display screen of the liquid crystal display module, but the operator can contact the alcohol for a long time by relying on manual work to clean, so that the human body is damaged to a certain extent, and the manual wiping efficiency is low, the labor intensity is high, and the labor cost is increased.

Disclosure of Invention

Based on this, it is necessary to provide a cleaning device and an automatic detection device capable of automatically cleaning a liquid crystal display module before the liquid crystal display module is detected, aiming at the problems of low working efficiency, high labor intensity, high cost and potential safety hazard caused by manual cleaning of the liquid crystal display module.

According to one aspect of the present application, there is provided a cleaning device comprising:

the rack is provided with a discharging end and a receiving end which are arranged at intervals along a first direction;

the guide rollers are arranged on the frame at intervals, each guide roller is used for bearing cleaning cloth and can rotate around the central axis of the guide rollers respectively so as to convey the cleaning cloth from the discharging end to the receiving end;

a first cleaning assembly having a first pressing head for spraying a cleaning liquid onto the cleaning cloth and a cleaning nozzle for pressing the cleaning cloth onto a workpiece transported in a direction opposite to a transport direction of the cleaning cloth between two adjacent guide rollers so that the cleaning cloth can wet-wipe the workpiece;

the second cleaning assembly is arranged at the downstream of the first cleaning assembly in the first direction and is provided with a second pressure head, and the second pressure head is used for pressing the cleaning cloth on the workpiece between the other two adjacent guide rollers so that the cleaning cloth can dry-wipe the workpiece.

In one embodiment, the first cleaning assembly includes a support frame and a first driving element, the support frame is fixedly disposed on the frame, the first driving element is coupled to the support frame, the first pressing head is connected to the first driving element, and the first driving element is used for driving the first pressing head to lift relative to the frame along a second direction perpendicular to the first direction so as to be close to the cleaning cloth or far away from the cleaning cloth.

In one embodiment, the first cleaning assembly further includes a second driving element fixedly mounted on the supporting frame, the first driving element is connected to the second driving element, and the second driving element is used for driving the first driving element and the first pressing head to lift along the second direction relative to the whole frame.

In one embodiment, the output end of the second driving element is connected with a sliding rail, the first driving element is movably mounted on the sliding rail through a sliding block, the first cleaning assembly comprises a third driving element, the third driving element is connected with the sliding block through a transmission mechanism in a transmission manner, and the third driving element is used for driving the sliding block, the first driving element and the first pressing head to move reciprocally along a third direction relative to the frame;

wherein the third direction is perpendicular to both the first direction and the second direction.

In one embodiment, the transmission mechanism includes a transmission wheel and a connecting piece, the transmission wheel is eccentrically connected to the output end of the third driving element, and the transmission wheel is connected to the sliding block through the connecting piece, and the transmission wheel can reciprocally rotate around an axis parallel to the central axis of the transmission wheel under the driving of the third driving element, so as to drive the connecting piece to reciprocally move along the third direction.

In one embodiment, the second cleaning assembly includes a fourth driving element, the second pressing head is connected to the fourth driving element, and the fourth driving element is used for driving the second pressing head to lift relative to the frame along a second direction perpendicular to the first direction so as to be close to the cleaning cloth or far away from the cleaning cloth.

In one embodiment, the cleaning device further comprises a pressing assembly arranged on the frame, the pressing assembly comprises a feeding driving shaft and a feeding driven shaft which are arranged at intervals, the feeding driving shaft and the feeding driven shaft can rotate around the central axis of the feeding driving shaft and the feeding driven shaft respectively, the cleaning cloth can be penetrated between the feeding driving shaft and the feeding driven shaft in the conveying process, and the feeding driven shaft can be controllably close to or far away from the feeding driving shaft so as to press the cleaning cloth in the conveying process between the feeding driving shaft and the feeding driven shaft.

In one embodiment, among the plurality of guide rollers, two adjacent guide rollers at the discharging end are respectively defined as a first guide roller and a second guide roller, and two adjacent guide rollers at the receiving end are respectively defined as a third guide roller and a fourth guide roller;

the cleaning device further comprises a first buffer shaft and/or a second buffer shaft, the first buffer shaft is movably arranged between the first guide roller and the second guide roller and is positioned below the first guide roller and the second guide roller, the second buffer shaft is movably arranged between the third guide roller and the fourth guide roller and is positioned below the third guide roller and the fourth guide roller, and the first buffer shaft and the second buffer shaft can respectively lift relative to the frame.

In one embodiment, the discharging end is provided with a discharging shaft, the receiving end is provided with a receiving shaft, the discharging shaft is used for winding one end of the cleaning cloth and can rotate around the central axis of the discharging shaft to discharge the cleaning cloth, and the receiving shaft is used for winding the other end of the cleaning cloth and can rotate around the central axis of the receiving shaft to receive the cleaning cloth.

According to another aspect of the present application, there is provided an automatic detection apparatus including: transfer device, follow loading attachment, belt cleaning device, detection device and the unloader that the first direction is arranged in proper order, wherein:

the loading device is used for conveying the workpiece to the transferring device;

the cleaning device is used for cleaning the workpiece before the workpiece is detected;

the detection device is used for detecting the workpiece;

the blanking device is used for transferring the workpiece out of the automatic detection equipment from the transfer device;

the transfer device is used for conveying the workpiece to pass through the cleaning device;

the control unit is respectively connected with the feeding device, the cleaning device, the detection device and the discharging device in a communication way; and

the man-machine interaction unit is in communication connection with the control unit, and is used for receiving control signals and transmitting the control signals to the control unit, and the control unit is used for correspondingly controlling the feeding device, the cleaning device, the detection device and the discharging device to execute corresponding actions according to the control signals.

Above-mentioned belt cleaning device and automated inspection equipment through setting up belt cleaning device in detection device's the upper reaches to through setting up a plurality of guide rolls that are used for bearing cleaning cloth in belt cleaning device's frame, every guide roll can rotate around self central axis respectively, makes cleaning cloth can follow the blowing end of frame and carry to receiving the material end. And through setting up first cleaning element, after cleaning solution shower nozzle of first cleaning element sprays cleaning solution to cleaning cloth, first pressure head of first cleaning element can be between two adjacent guide rolls with cleaning cloth pressfitting on the work piece for cleaning cloth can be automatic wet the cleaning to the work piece, thereby can accomplish the work piece with the help of the manual work, especially can accomplish the self-cleaning to liquid crystal display module surface before liquid crystal display module is detected, and then alleviateed workman's intensity of labour, improved work efficiency, and saved the human cost. Further, through setting up the second and wash the subassembly, the second pressure head of second washs the subassembly and can be in the work piece with cleaning cloth pressfitting between two other adjacent guide rolls for cleaning cloth can dry the work piece after wet wiping, thereby can dry the surface of work piece and clean with further wiping, in order to avoid liquid crystal display module to receive the influence of undried washing liquid and influence the testing result when flowing into detection device and detecting.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only one embodiment of the utility model, and that other embodiments of the drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an automatic detection device according to an embodiment of the present utility model;

FIG. 2 is a front view of a cleaning device according to an embodiment of the present utility model;

FIG. 3 is an isometric view of a cleaning device according to an embodiment of the present utility model;

FIG. 4 is another angular isometric view of a cleaning apparatus provided in accordance with an embodiment of the present utility model;

FIG. 5 is an isometric view of a first cleaning assembly provided in an embodiment of the utility model;

FIG. 6 is another angular isometric view of a first cleaning assembly provided in accordance with an embodiment of the present utility model;

FIG. 7 is an enlarged schematic view of area A of FIG. 6;

FIG. 8 is an enlarged schematic view of region B of FIG. 4;

fig. 9 is an enlarged schematic view of region C in fig. 3.

Reference numerals illustrate:

10. an automatic detection device; 100. a feeding device; 200. a cleaning device; 210. a frame; 211. a discharging end; 212. a material receiving end; 220. a guide roller; 221. a first guide roller; 222. a second guide roller; 223. a third guide roller; 224. a fourth guide roller; 230. a first cleaning assembly; 231. a support frame; 232. a first ram; 233. cleaning the spray head; 234. a first driving element; 235. a second driving element; 236. a slide rail; 237. a slide block; 238. a third driving element; 239. a transmission mechanism; 2391. a driving wheel; 2392. a connecting piece; 2392a, a receiving groove; 240. a second cleaning assembly; 241. a second ram; 242. a fourth driving element; 250. a discharging shaft; 260. a fifth driving element; 270. a material receiving shaft; 280. a sixth driving element; 290. a limiting plate; 2100. a first buffer shaft; 2110. a second buffer shaft; 2120. a sensor; 2130. a compression assembly; 2131. a feeding driving shaft; 2132. a seventh drive element; 2133. a feeding driven shaft; 2134. a connecting frame; 2135. an eighth driving element; 300. a detection device; 400. a blanking device; 500. a control unit; 600. a man-machine interaction unit; 700. an upper computer; 80. a cleaning cloth.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, 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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less in horizontal height than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The utility model provides a cleaning device and automatic detection equipment, wherein the automatic detection equipment comprises the cleaning device. The automatic detection equipment is used for detecting the quality of the workpiece so as to judge whether the workpiece has flaws or not, so that the workpiece with flaws on the surface can be removed in time when leaving a factory, and products with flaws on the surface are prevented from flowing into the market. The cleaning device is used for wiping the workpiece before the workpiece is detected by the detection device, so that dust or foreign matters on the workpiece can be wiped clean before the workpiece is conveyed to the detection device for detection, and the influence on the subsequent detection result of the workpiece is avoided.

The structures of the cleaning device and the automatic cleaning line in the present application will be described below using a workpiece as an example of a liquid crystal display module. It can be appreciated that in other embodiments, the cleaning device of the present application is not limited to cleaning only the lcd module, but also may clean any other workpiece with cleaning requirement, and the automatic detection device of the present application is not limited to detecting only the lcd module, but also any other workpiece, which is not limited herein.

The following describes preferred embodiments of the cleaning apparatus and the automatic cleaning line provided in the present application with reference to fig. 1 to 9.

Referring to fig. 1, a schematic diagram of an automatic detection apparatus 10 includes a loading device 100, a cleaning device 200, a detection device 300, a discharging device 400, a transferring device, a control unit 500, a man-machine interaction unit 600, and an upper computer 700. The loading device 100, the cleaning device 200, the detecting device 300 and the blanking device 400 are sequentially arranged at intervals along a first direction (X direction in the figure), and the transferring device is used for conveying the liquid crystal display module to sequentially pass through the loading device 100, the cleaning device 200, the detecting device 300 and the blanking device 400, and overturning the liquid crystal display module in the conveying process.

The loading device 100 is used for carrying the liquid crystal display module to the transferring device, the cleaning device 200 is used for cleaning and wiping the surface of the liquid crystal display module before the liquid crystal display module is detected by the detecting device 300 so as to remove dust and foreign matters attached to the surface of the liquid crystal display module, and the unloading device 400 of the cleaning device 200 is used for carrying the liquid crystal display module from the transferring device to a detecting station of the next process after the cleaning device 200 is used for cleaning. The control unit 500 is respectively communicatively connected to the feeding device 100, the cleaning device 200 and the discharging device 400, and is used for controlling the feeding device 100, the cleaning device 200, the detecting device 300 and the discharging device 400 to execute specific actions, and the control unit 500 may be a PLC control device or the like, for example. The man-machine interaction unit 600 and the upper computer 700 are respectively connected to the control unit 500 in a communication manner, wherein the man-machine interaction unit 600 is provided with a touch screen, an operator can complete setting of related parameters through the touch screen, the man-machine interaction unit 600 can receive control signals sent by the operator, the operator can see display of related information through the touch screen, and perform manual operation according to the related information, the upper computer 700 is used for communicating with the man-machine interaction unit 600 and the control unit 500, specifically, generating control instructions according to the control signals received by the man-machine interaction unit 600 and sending the control instructions to the control unit 500, the control unit 500 is used for correspondingly controlling the feeding device 100, the cleaning device 200, the detection device 300 and the blanking device 400 to execute corresponding actions according to the corresponding control instructions, namely, respectively controlling the feeding device 100 to carry the liquid crystal display module to the transfer device, controlling the cleaning device 200 to wipe the liquid crystal display module, controlling the detection device 300 to detect whether the liquid crystal display module is cleaned or not according to the cleaning device 200, and controlling the blanking device 400 to carry the liquid crystal display module from the transfer device to the automatic detection equipment 10.

It should be understood that the upper computer 700 may not be provided, and the control unit 500 also has the function of the upper computer 700, that is, the control unit 500 may directly generate a control instruction according to a control signal to control the feeding device 100, the cleaning device 200, the detecting device 300 and the discharging device 400 to execute corresponding actions, which is not limited specifically.

In one embodiment, as shown in fig. 2-4, the cleaning apparatus 200 includes a frame 210, a plurality of guide rollers 220, a first cleaning assembly 230, and a second cleaning assembly 240. The frame 210 has a discharging end 211 and a receiving end 212 which are relatively and alternately arranged along a first direction, and a plurality of guide rollers 220 are alternately arranged on the frame 210, wherein each guide roller 220 is used for bearing the cleaning cloth 80 and can rotate around a central axis of the guide roller respectively so as to convey each part of the cleaning cloth 80 from the discharging end 211 to the receiving end 212. The liquid crystal display module is transferred by the transfer device in a transfer direction opposite to the cleaning cloth 80 under the cleaning device 200, that is, from one end of the receiving end 212 to one end of the discharging end 211, the first cleaning assembly 230 and the second cleaning assembly 240 are disposed on the frame 210 at intervals along the first direction, wherein the first cleaning assembly 230 has a first pressure head 232 and a cleaning spray head 233, the cleaning spray head 233 is used for spraying a cleaning liquid stored therein, such as alcohol, onto the cleaning cloth 80, and the first pressure head 232 is used for pressing the cleaning cloth 80 onto the liquid crystal display module transferred along the first direction between two adjacent guide rollers 220, so that the cleaning cloth 80 can wipe (i.e., wet wipe) the liquid crystal display module for the first time. Similarly, the second cleaning assembly 240 is located downstream of the first cleaning assembly 230 along the conveying direction of the liquid crystal display module, and has a second pressing head 241, where the second pressing head 241 is used to press the cleaning cloth 80 onto the liquid crystal display module between two other adjacent guide rollers 220, so that the cleaning cloth 80 can wipe (i.e. dry wipe) the liquid crystal display module for the second time.

In particular, as shown in fig. 5 and 6, the first cleaning assembly 230 includes a support frame 231, a first ram 232, a first driving member 234, and a cleaning head 233. The support frame 231 is fixedly disposed on the frame 210, the first driving member 234 and the cleaning nozzle 233 are coupled to the support frame 231, and the first pressing head 232 is connected to an output end of the first driving member 234, and the first driving member 234 may be a driving source such as an air cylinder or a hydraulic cylinder for driving the first pressing head 232 to lift in a second direction (Y direction in the drawing) perpendicular to the first direction to approach or separate from the cleaning cloth 80. Through making first pressure head 232 can go on the lift removal towards the direction that is close to or keeps away from cleaning cloth 80 for first cleaning subassembly 230 can adjust the position of first pressure head 232 in the second direction, and can control the pressure that first pressure head 232 pressed and clean on cleaning cloth 80 according to the foreign matter or the dust on the liquid crystal display module, when foreign matter or dust are more, can control first pressure head 232 to press and slightly compress tightly some on cleaning cloth 80, thereby can clean the intractable spot on liquid crystal display module surface.

Preferably, the first cleaning assembly 230 further includes a second driving element 235, the second driving element 235 may also be a driving source such as a cylinder or a hydraulic cylinder, and the second driving element 235 is fixedly mounted on the supporting frame 231, and the first driving element 234 is connected to an output end of the second driving element 235, so that the first driving element 234 is coupled to the supporting frame 231 through the second driving element 235, and the second driving element 235 is used for driving the first driving element 234 and the first pressing head 232 to lift along a second direction relative to the whole frame 210.

In this way, by providing the first driving element 234 and the second driving element 235, the first cleaning assembly 230 is configured to be two-stage telescopic, the second driving element 235 can perform the first-stage telescopic motion, so that the position of the first pressing head 232 in the second direction can be roughly adjusted, the first pressing head 232 can be as close to the cleaning cloth 80 as possible, the first driving element 234 can perform the second-stage telescopic motion, and the position of the first pressing head 232 in the second direction can be accurately adjusted, so that the pressure of the first pressing head 232 pressed on the cleaning cloth 80 can be adjusted as described above.

As a further improvement, as shown in fig. 7, the output end of the second driving element 235 is connected to a slide rail 236, the first driving element 234 is movably mounted on the slide rail 236 through a slide block 237, and the first cleaning assembly 230 further includes a third driving element 238, where the third driving element 238 is drivingly connected to the slide block 237 through a transmission mechanism 239, and the third driving element 238 may be a driving source such as a servo motor, for driving the slide block 237, the first driving element 234 and the first ram 232 to reciprocate relative to the frame 210 in a third direction (Z direction in the drawing) perpendicular to the first direction and the second direction simultaneously.

Thus, through the above arrangement, the first pressing head 232 can press the cleaning cloth 80 to move back and forth along the third direction to repeatedly wipe the liquid crystal display module, so that the stain removing effect is better.

In some embodiments, the transmission mechanism 239 includes a transmission wheel 2391 and a connecting member 2392, the transmission wheel 2391 is eccentrically connected to the output end of the third driving element 238, and the transmission wheel 2391 is connected to the slider 237 through the connecting member 2392, and the transmission wheel 2391 can reciprocally rotate around an axis parallel to the central axis of the transmission wheel 2391 under the driving of the third driving element 238, so as to drive the connecting member 2392 to reciprocally move along the third direction, so that the connecting member 2392 drives the slider 237 and the first pressure head 232 to reciprocally move along the third direction.

In a specific embodiment, a receiving groove 2392a is formed on a side of the connecting member 2392 near the third driving element 238, the driving wheel 2391 is received in the receiving groove 2392a, and the size of the receiving groove 2392a is larger than the outer diameter of the driving wheel 2391, when the driving wheel 2391 reciprocally rotates around an axis parallel to the central axis of the driving wheel 2391, the side wall of the receiving groove 2392a can be touched, so that the connecting member 2392 can be driven to reciprocally move along the third direction.

It is to be understood that the structure of the connecting member 2392 is not limited to the above structure, the connecting member 2392 may be a connecting rod, one end of the connecting rod is rotatably connected to the driving wheel 2391, the other end of the connecting rod is fixedly connected to the sliding block 237, and when the driving wheel 2391 reciprocally rotates eccentrically around an axis parallel to the central axis of the driving wheel 2391, the connecting member 2392 is also driven to reciprocally move in a third direction, and further the sliding block 237 and the first pressing head 232 are also driven to reciprocally move along the third direction.

Similar to the structure of the first cleaning assembly 230, as shown in fig. 8, the second cleaning assembly 240 includes a fourth driving element 242 in addition to the second pressing head 241, the fourth driving element 242 is mounted on the frame 210, the second pressing head 241 is connected to the fourth driving element 242, and the fourth driving element 242 is used for driving the second pressing head 241 to lift relative to the frame 210 along the second direction so as to be close to the cleaning cloth 80 or far away from the cleaning cloth 80, so that the pressure of the second pressing head 241 on the cleaning cloth 80 can be adjusted, and the technical effect achieved is the same as that achieved by the lifting of the first pressing head 232 in the first cleaning assembly 230, which is not repeated.

It should be understood that the second cleaning assembly 240 may be identical to the first cleaning assembly 230, that is, the second cleaning assembly 240 may be configured with two-stage telescopic structure by providing additional driving elements, or the second cleaning assembly 240 may be configured with one-stage telescopic structure by providing only the fourth driving element 242, which may be provided according to needs, but is not limited thereto.

In this way, the first cleaning assembly 230 and the second cleaning assembly 240 are sequentially arranged on the support along the conveying direction of the liquid crystal display module, and the conveying direction of the cleaning cloth 80 is the direction opposite to the conveying direction of the liquid crystal display module, so that the cleaning cloth 80 sprayed with the cleaning liquid such as alcohol can be pressed on the surface of the liquid crystal display module by the first pressure head 232 when the liquid crystal display module passes through the first cleaning device 200, and can reciprocate along the third direction, thereby automatically wiping the liquid crystal display module. After the wet wiping is completed, the liquid crystal display module can advance along the conveying direction through the second cleaning component 240, meanwhile, the cleaning cloth 80 is continuously conveyed along the direction opposite to the conveying direction of the liquid crystal display module, and the second pressure head 241 can press the dry clean cleaning cloth 80 on the surface of the liquid crystal display module to continuously dry and wipe the surface of the liquid crystal display module, so that the liquid crystal display module can be wiped cleanly and dry, and the influence of the undried cleaning liquid on the detection result when the liquid crystal display module flows into the detection device 300 for detection is avoided.

In a preferred embodiment, referring to fig. 2 to 4, the discharging end 211 of the frame 210 is provided with a discharging shaft 250, the discharging shaft 250 is used for winding one end of the cleaning cloth 80, one end of the discharging shaft 250 is connected to the fifth driving element 260, and the discharging shaft 250 can rotate around its central axis under the driving of the fifth driving element 260, so as to discharge the cleaning cloth 80, and the cleaning cloth 80 can be conveyed in a direction close to the receiving end 212. Similarly, the material receiving end 212 is provided with a material receiving shaft 270, the material receiving shaft 270 is used for winding the other end of the cleaning cloth 80, one end of the material receiving shaft 270 is connected to a sixth driving element 280, and the material receiving shaft 270 can rotate around the central axis of the material receiving shaft 270 under the driving of the sixth driving element 280, so that the waste cleaning cloth 80 rubbed with the liquid crystal display module is received.

Through setting up the feed shaft 250 and receiving the feed shaft 270 like this for above-mentioned belt cleaning device 200 is cleaned the liquid crystal display module before and after cleaning the liquid crystal display module can accomodate cleaning cloth 80, thereby has avoided cleaning cloth 80 to carry in disorder in a seal-free way, has guaranteed clean and tidy of on-the-spot operational environment.

Preferably, in one embodiment, two limiting plates 290 are further disposed on the outer circumferential surface of the discharging shaft 250, the two limiting plates 290 are disposed along the axial direction of the discharging shaft 250 at intervals, the distance between the two limiting plates 290 is not smaller than the dimension of the cleaning cloth 80 in the axial direction, and the cleaning cloth 80 is not dropped from the discharging shaft 250 when being wound on the discharging shaft 250 by the limiting plates 290, so that accidents are avoided. Similarly, two stopper plates 290 may be provided on the outer peripheral surface of the collecting shaft 270, and the present utility model is not particularly limited.

In a more preferred embodiment, among the plurality of guide rollers 220, two adjacent guide rollers 220 located at the discharge end 211 and adjacent to the discharge shaft 250 are respectively defined as a first guide roller 221 and a second guide roller 222, the other two adjacent guide rollers 220 located at the receiving end 212 and adjacent to the receiving shaft 270 are a third guide roller 223 and a fourth guide roller 224, while the cleaning apparatus 200 further includes a first buffer shaft 2100 and a second buffer shaft 2110, the first buffer shaft 2100 is movably disposed between the first guide roller 221 and the second guide roller 222 and is located below the first guide roller 221 and the second guide roller 222 in the second direction, the second buffer shaft 2110 is movably disposed between the third guide roller 223 and the fourth guide roller 224 and is located below the third guide roller 223 and the fourth guide roller 224 in the second direction, the cleaning cloth 80 can be alternately disposed around the first guide roller 221, the first buffer shaft 2100 and the second guide roller 222 in sequence at a portion adjacent to the discharge end 211, and the cleaning cloth 80 can be alternately disposed around the first buffer shaft 2110 and the second guide roller 2110 in sequence at the opposite direction to the second buffer shaft 2100 and the second guide roller 224.

In this way, by providing the first buffer shaft 2100, after discharging the cleaning cloth 80, the cleaning cloth 80 can be buffered by lifting and lowering the first buffer shaft 2100. For example, when the cleaning cloth 80 is excessively discharged, the first buffer shaft 2100 may move downward for a certain distance, so that a portion of the cleaning cloth 80 with more discharged material may be buffered and tensioned to store the cleaning cloth 80, and the tension of the cleaning cloth 80 is not affected, so as to avoid the cleaning cloth 80 from falling off from the guide roller 220; when the cleaning cloth 80 is less discharged, the first buffer shaft 2100 may be moved upward by a distance so that the tension of the cleaning cloth 80 may be adjusted. In the same way, the second buffer shaft 2110 is provided to buffer the waste cleaning cloth 80 which is wiped by the liquid crystal display module, and when the waste cleaning cloth 80 is not yet received by winding, the second buffer shaft 2110 can move downwards for a certain distance, so that the waste cleaning cloth 80 which is not received by winding can be buffered and tensioned, and detailed description is omitted.

It should be noted that only one of the first buffer shaft 2100 and the second buffer shaft 2110 may be provided, and the present utility model is not limited to this.

In addition, a sensor 2120 may be disposed at a position of the frame 210 near the discharging shaft 250, where the sensor 2120 is used to determine a discharging length of the cleaning cloth 80 by the discharging shaft 250, so that the situation of excessive discharging or insufficient discharging can be avoided.

Further, as shown in fig. 1 and 9, the cleaning apparatus 200 further includes a pressing assembly 2130, and the pressing assembly 2130 is disposed on the frame 210, for example, may be disposed above the remaining guide rollers 220 except the first guide roller 221, the second guide roller 222, the third guide roller 223, and the fourth guide roller 224 in the second direction. Specifically, the compression assembly 2130 includes a feed driving shaft 2131 and a feed driven shaft 2133 disposed at opposite intervals along a first direction, wherein the feed driving shaft 2131 is connected to a seventh driving element 2132 and rotatably disposed on the frame 210, the feed driving shaft 2131 rotates about its central axis under the driving of the seventh driving element 2132, the feed driven shaft 2133 is connected to an eighth driving element 2135 disposed on the frame 210 through a connecting frame 2134, and the feed driven shaft 2133 can also rotate about its central axis, the eighth driving element 2135 can drive the connecting frame 2134 and the feed driven shaft 2133 to move in the first direction to approach or separate from the feed driving shaft 2131.

In this way, by providing the pressing assembly 2130, the cleaning cloth 80 can be further disposed between the feeding driving shaft 2131 and the feeding driven shaft 2133 when being conveyed along each guide roller 220, the feeding driven shaft 2133 can be close to the feeding driving shaft 2131, so that the cleaning cloth 80 can be conveyed and simultaneously can be pressed between the feeding driving shaft 2131 and the feeding driven shaft 2133 by the feeding driven shaft 2133, the conveying path of the cleaning cloth 80 is changed, the cleaning cloth 80 can be closely attached to the peripheral surface of each guide roller 220 and is tensioned by each guide roller 220, and accordingly, the cleaning cloth 80 is prevented from being loosened or falling off from each guide roller 220 when being conveyed, and therefore, the wiping effect of the cleaning cloth 80 on the liquid crystal display module when the first pressure head 232 or the second pressure head 241 is pressed on the cleaning cloth 80 is ensured.

The cleaning device 200 is provided with the following cleaning method:

firstly, after the liquid crystal display module is carried to the transfer device by the feeding device 100 of the automatic detection device 10, the transfer device conveys the liquid crystal display module to a cleaning station where the cleaning device 200 is located, when the liquid crystal display module passes under the first cleaning component 230, the transfer device decelerates to enable the liquid crystal display module to slowly move, the control unit 500 sends out a control instruction to control the cleaning nozzle 233 of the first cleaning component 230 to spray alcohol to the cleaning cloth 80, meanwhile, the control unit 500 controls the first pressure head 232 of the first cleaning component 230 to move downwards along the second direction to enable the cleaning cloth 80 to be attached to the surface to be cleaned of the liquid crystal display module, and controls the first pressure head 232 to move back and forth along the third direction to enable the cleaning cloth 80 to wet the surface to be cleaned of the liquid crystal display module.

Then, after the first cleaning assembly 230 completes the wet wiping, the guiding shaft moves the cleaning cloth 80 a distance towards the direction of the material receiving end 212, and the transferring device simultaneously conveys the liquid crystal display module to the lower side of the second cleaning assembly 240, so that the cleaning cloth 80 above the liquid crystal display module is still clean cleaning cloth 80, and at this time, the transferring device decelerates again, and the control unit 500 controls the second pressing head 241 of the second cleaning assembly 240 to move downwards along the second direction so that the cleaning cloth 80 is attached to the surface to be cleaned of the liquid crystal display module, so that the cleaning cloth 80 performs dry wiping on the surface to be cleaned of the liquid crystal display module. Meanwhile, the collecting shaft 270 winds up the wiped waste cleaning cloth 80, thereby completing the whole wiping process.

In this way, by arranging the cleaning device 200 above upstream of the detecting device 300 in the automatic detecting device 10, the surface of the liquid crystal display module can be automatically cleaned without manual work before the liquid crystal display module is detected, and then dust or foreign matters on the surface of the liquid crystal display module can be cleaned, so that the misjudgment rate of the detecting device 300 on the liquid crystal display module product detection is reduced, the labor intensity of workers is reduced, the working efficiency is improved, and the labor cost is saved.

Finally, it should be noted that, in order to simplify the description, all possible combinations of the features of the above embodiments may be arbitrarily combined, however, as long as there is no contradiction between the combinations of the features, the description should be considered as the scope of the description.

The above examples illustrate only one embodiment of the utility model, which is described in more detail and is not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.

Claims (10)

1. A cleaning device, comprising:

the rack is provided with a discharging end and a receiving end which are arranged at intervals along a first direction;

the guide rollers are arranged on the frame at intervals, each guide roller is used for bearing cleaning cloth and can rotate around the central axis of the guide rollers respectively so as to convey the cleaning cloth from the discharging end to the receiving end;

a first cleaning assembly having a first pressing head for spraying a cleaning liquid onto the cleaning cloth and a cleaning nozzle for pressing the cleaning cloth onto a workpiece transported in a direction opposite to a transport direction of the cleaning cloth between two adjacent guide rollers so that the cleaning cloth can wet-wipe the workpiece;

the second cleaning assembly is arranged at the downstream of the first cleaning assembly in the first direction and is provided with a second pressure head, and the second pressure head is used for pressing the cleaning cloth on the workpiece between the other two adjacent guide rollers so that the cleaning cloth can dry-wipe the workpiece.

2. The cleaning device of claim 1, wherein the first cleaning assembly comprises a support frame and a first driving element, the support frame is fixedly arranged on the frame, the first driving element is connected to the support frame in a matching mode, the first pressing head is connected to the first driving element, and the first driving element is used for driving the first pressing head to lift relative to the frame along a second direction perpendicular to the first direction so as to be close to the cleaning cloth or far away from the cleaning cloth.

3. The cleaning apparatus of claim 2, wherein the first cleaning assembly further comprises a second drive element fixedly mounted to the support frame, the first drive element coupled to the second drive element, the second drive element configured to drive the first drive element and the first ram to move up and down in the second direction relative to the frame as a whole.

4. A cleaning device according to claim 3, wherein the output end of the second driving element is connected with a sliding rail, the first driving element is movably mounted on the sliding rail through a sliding block, the first cleaning assembly comprises a third driving element, the third driving element is connected with the sliding block through a transmission mechanism in a transmission manner, and the third driving element is used for driving the sliding block, the first driving element and the first pressing head to integrally reciprocate relative to the frame along a third direction;

wherein the third direction is perpendicular to both the first direction and the second direction.

5. The cleaning apparatus according to claim 4, wherein the transmission mechanism comprises a transmission wheel and a connecting member, the transmission wheel is eccentrically connected to the output end of the third driving element, and the transmission wheel is connected to the slider through the connecting member, and the transmission wheel can be reciprocally rotated about an axis parallel to the central axis of the transmission wheel under the driving of the third driving element, so as to drive the connecting member to reciprocally move in the third direction.

6. The cleaning apparatus of claim 1, wherein the second cleaning assembly comprises a fourth drive element, the second ram being coupled to the fourth drive element, the fourth drive element being configured to drive the second ram to move up and down relative to the frame in a second direction perpendicular to the first direction to either approach or separate from the cleaning cloth.

7. The cleaning apparatus defined in any one of claims 1-6, further comprising a hold-down assembly disposed on the frame, the hold-down assembly comprising a feed drive shaft and a feed driven shaft disposed in spaced relation, the feed drive shaft and the feed driven shaft being capable of rotating about their respective central axes, the cleaning cloth being capable of being passed between the feed drive shaft and the feed driven shaft during transport, the feed driven shaft being capable of being controllably moved closer to or farther from the feed drive shaft to compress the cleaning cloth being transported between the feed drive shaft and the feed driven shaft.

8. The cleaning apparatus defined in any one of claims 1-6, wherein two adjacent ones of the plurality of guide rollers at the discharge end are defined as a first guide roller and a second guide roller, respectively, and two adjacent ones of the plurality of guide rollers at the collection end are a third guide roller and a fourth guide roller, respectively;

the cleaning device further comprises a first buffer shaft and/or a second buffer shaft, the first buffer shaft is movably arranged between the first guide roller and the second guide roller and is positioned below the first guide roller and the second guide roller, the second buffer shaft is movably arranged between the third guide roller and the fourth guide roller and is positioned below the third guide roller and the fourth guide roller, and the first buffer shaft and the second buffer shaft can respectively lift relative to the frame.

9. The cleaning device according to any one of claims 1 to 6, wherein the discharge end is provided with a discharge shaft, the collection end is provided with a collection shaft, the discharge shaft is used for winding one end of the cleaning cloth and can rotate around a central axis of the collection shaft to achieve discharging of the cleaning cloth, and the collection shaft is used for winding the other end of the cleaning cloth and can rotate around the central axis of the collection shaft to achieve collection of the cleaning cloth.

10. An automatic inspection apparatus comprising a transfer device, a loading device arranged in sequence along the first direction, a cleaning device according to any one of claims 1 to 9, an inspection device and a blanking device, wherein:

the loading device is used for conveying the workpiece to the transferring device;

the cleaning device is used for cleaning the workpiece before the workpiece is detected;

the detection device is used for detecting the workpiece;

the blanking device is used for transferring the workpiece out of the automatic detection equipment from the transfer device;

the transfer device is used for conveying the workpiece to pass through the cleaning device;

the control unit is respectively connected with the feeding device, the cleaning device, the detection device and the discharging device in a communication way; and

the man-machine interaction unit is in communication connection with the control unit, and is used for receiving control signals and transmitting the control signals to the control unit, and the control unit is used for correspondingly controlling the feeding device, the cleaning device, the detection device and the discharging device to execute corresponding actions according to the control signals.