Screen decontamination structure based on caching, segmenting and continuous wiping of wiping cloth

Abstract

The invention discloses a screen decontamination structure based on wiping cloth caching, segmentation and continuous wiping, the screen decontamination structure comprises wiping cloth, a wiping head and a lifting driver, the wiping head abuts against the wiping cloth to press down to form a V-shaped wiping section, and the screen decontamination structure further comprises a wiping seat matched with the wiping head, a wiping power device and a caching unit. On one hand, on the basis of caching and releasing, the V-shaped wiping angle of the wiping cloth is changed without depending on elastic deformation, the wiping face of the segmented wiping cloth can be replaced in the wiping process, and the probability that stains are attached to a screen again is reduced while the dirt removing capacity is improved; on the other hand, on the basis of follow-up attachment of the wiping section and the wiping head and synchronous reciprocating along the width of the wiping cloth, the formed wiping force is balanced, wide coverage type decontamination is achieved, the decontamination quality is good, and the residual rate of stains or dust is low; in addition, the adopted wiping cloth is used for wiping in a sectional mode, and the consumption of the wiping cloth is small.

Description

Technical Field

[0001] The invention belongs to the field of cleaning equipment, and in particular relates to a screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping. Background Art

[0002] At present, in the process of processing products, such as glass display screens, surface decontamination of the screen is an essential process. In this decontamination process, a wiping cloth is usually used to wipe the screen surface.

[0003] However, once the display screen has a curved surface (for example, a car display screen), the screen cleaning structure used needs to meet the adaptive adjustment of the wiping height, and basically the display screen is moved and the wiping section is stationary to scrape the stains on the screen surface by the wiping part. However, the wiping sections formed by the wiping cloth used all wipe the screen surface at the same position. Once the screen stains are difficult to remove, since the wiping surface formed by the wiping section does not change, the screen is continuously cleaned with the wiping cloth containing stains. Therefore, not only is the cleaning ability poor, but the stains on the wiping section may also adhere to the display screen again. Obviously, it cannot meet the cleaning needs. At the same time, if the adaptive adjustment of the wiping height depends entirely on the deformation ability of the wiping cloth, once there are multiple height changes, the wiping cloth cannot restore the deformation, resulting in the wiping force being unable to be balanced, resulting in a high residual rate of stains or dust, which in turn affects the quality of the subsequent coating. In addition, there is also a method of wiping by moving the display screen and the wiping cloth in the reverse direction, but this method consumes a large amount of wiping cloth and has a high wiping cost. At the same time, the wiping cloth must be replaced frequently, which reduces the wiping efficiency. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a new screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping.

[0005] To achieve the above object, the present invention adopts the following scheme: A screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping, the screen is horizontally transported and kept passing through the wiping area with the surface to be wiped facing upward, the screen decontamination structure includes a wiping cloth arranged above the surface to be wiped, a wiping head, and a lifting driver for driving the wiping head to move up and down, wherein the wiping head presses down against the wiping cloth to form a V-shaped wiping section, and the wiping section rises and falls synchronously and changes the V-shaped angle as the surface to be wiped changes, the screen decontamination structure also includes a wiping seat matched with the wiping head, a wiping seat arranged on the wiping seat to drive the wiping head to reciprocate along the width direction of the wiping cloth to cover the wiping cloth A wiping power device for wiping, and a buffer unit arranged on the wiping cloth transmission path, wherein the wiping section and the wiping head move synchronously for wiping; the buffer unit includes two buffer roller groups on the wiping cloth transmission path and located on opposite sides of the wiping head, wherein one of the two buffer roller groups buffers the wiping cloth and the other releases the wiping cloth synchronously therewith to adjust the wiping position and / or the size of the V-shaped angle of the wiping cloth in the wiping section; or one of the two buffer roller groups buffers or releases the wiping cloth and the other remains stationary to adjust the wiping position and / or the size of the V-shaped angle of the wiping cloth in the wiping section.

[0006] According to a specific implementation and preferred aspect of the present invention, the cache unit includes two cache roller groups located on opposite sides of the wiping unit on the wiping cloth transmission path, wherein one of the two cache roller groups caches the wiping cloth and the other releases the wiping cloth synchronously to adjust the wiping position of the wiping cloth in the wiping section, or one of the two cache roller groups caches or releases the wiping cloth and the other remains stationary to adjust the wiping position of the wiping cloth in the wiping section. Here, based on one of the two cache roller groups forming a cache and the other forming a release, it is possible to adjust the wiping position of the wiping cloth while the wiping section maintains a constant height and a V-shaped angle to suit the wiping of a continuous flat section of the screen, and it is also possible to adjust the wiping position of the wiping cloth while the height and the V-shaped angle of the wiping section change to suit the wiping of a continuously changing curved section of the screen; at the same time, based on one of the two cache roller groups forming a cache and the other remaining stationary, it is possible to adjust the wiping position of the wiping cloth while the height and the V-shaped angle of the wiping section change to suit the wiping of a continuously changing curved section of the screen; in addition, the two cache roller groups can also be used to periodically and synchronously cache and tighten the wiping cloth, increase the surface tension of the wiping cloth to eliminate wrinkles on the surface of the wiping cloth (wrinkles are easily formed on the surface of the wiping cloth during long-term reciprocating motion) and improve the flatness of the wiping cloth, thereby maintaining the cleaning effect while extending the service life of the wiping cloth, meeting the wiping of a larger number of screens, effectively saving the amount of wiping cloth and reducing costs.

[0007] Preferably, the two buffer roller groups are symmetrically arranged about the center line of the wiping section.

[0008] Preferably, each buffer roller group includes a buffer roller that can be raised and lowered, and a first guide roller arranged above or below the buffer roller. The wiping cloth passes through the buffer roller, the first guide roller, or the first guide roller and the buffer roller in sequence. When buffering, the buffer roller is adjusted away from the first guide roller, and when releasing, the buffer roller is adjusted toward the first guide roller. Here, the structure is simple, and it is easy to install and implement.

[0009] Preferably, the first guide roller can be adjusted to move closer to or farther from the wiping unit; and / or, each buffer roller group further includes second guide rollers arranged at both ends of the wiping section, two second guide rollers are arranged at both ends of the wiping section, and the two second guide rollers are flush and can be adjusted up and down; the total length of the wiping section is greater than the distance between the two second guide rollers. Here, the height of the second guide roller is adjusted to match the height change of the screen surface to ensure that a V-shaped wiping section can be formed, and based on the total length of the wiping section being greater than the distance between the two second guide rollers, that is, before the wiping head contacts the wiping cloth, the wiping cloth between the two second guide rollers is in a relaxed state, so as to adjust the wiping position.

[0010] According to another specific implementation and preferred aspect of the present invention, the screen decontamination structure also includes a cloth pressing unit arranged on the wiping cloth transmission path and located on the side of any buffer roller group away from the wiping unit, and the wiping position of the wiping cloth in the wiping section is adjusted based on the cloth pressing unit pressing the wiping cloth. Here, based on the wiping cloth being pressed and fixed, the caching or release is implemented to facilitate the control of the total length of the wiping cloth passing through the cache unit and the wiping unit, so as to accurately control the surface tension of the formed V-shaped wiping section and improve the wiping effect; at the same time, it can avoid interference with the wiping cloth of other processes in a continuous production line.

[0011] Preferably, the cloth pressing unit comprises a bottom roller and a pressing roller movably arranged above the bottom roller, wherein the wiping cloth passes around the bottom roller, and the pressing roller presses the wiping cloth onto the bottom roller downward; the pressing roller comprises a plurality of roller bodies, and the plurality of roller bodies are spaced around the center line of the bottom roller. Here, the pressing and fixing effect is good, and the probability of the wiping cloth loosening is reduced.

[0012] According to another specific implementation and preferred aspect of the present invention, a strip-shaped interference mold strip is provided at the bottom of the wiping head, wherein the interference mold strip extends along the width direction of the wiping cloth. Preferably, the length of the interference mold strip is greater than the width of the wiping cloth to eliminate wiping dead angles.

[0013] Preferably, in the orthographic projection in the extension direction of the interference mold strip, the bottom of the interference mold strip forms a horizontal section and arc sections located on opposite sides of the horizontal section in the length direction of the wiping cloth, wherein the arc sections on both sides are tangent to the horizontal section respectively. Here, the horizontal section can accurately match the wiping of the flat section of the screen, and the arc section can accurately match the wiping of the curved or inclined section of the screen, thereby ensuring the wiping effect while reducing the probability of screen damage.

[0014] Preferably, the lifting drive comprises a lifting cylinder for driving the wiping seat to move up and down; the wiping head is slidably connected to the wiping seat along the width direction of the wiping cloth.

[0015] Preferably, the wiping power device comprises a transmission die base fixedly connected to the wiping head, and a driving member arranged on the wiping base and driving the transmission die base to reciprocate and move along a direction perpendicular to the width of the wiping cloth.

[0016] Specifically, a strip hole extending along the screen transmission direction is formed on the transmission mold base, and the driving part is a motor, wherein an eccentric wheel matching the strip hole is provided on the output shaft of the motor, and the eccentric wheel is installed in the strip hole and drives the transmission mold base to reciprocate in the eccentric motion. Since the wiping cloth forms a V-shaped wiping section under compression, the movement amplitude of the wiping section must be accurately controlled during the wiping movement (excessive amplitude can easily cause the wiping cloth to break). The present application adopts the cooperation of the eccentric wheel and the strip hole, which can accurately achieve the short-distance micro-motion amplitude, and the motor load is small, which can achieve high-frequency and long-term operation, and is convenient for improving the wiping efficiency.

[0017] In addition, the screen decontamination structure further includes a cleaning liquid sprayer, wherein the cleaning liquid sprayer can spray the cleaning liquid onto the screen surface to be cleaned and / or the wiping cloth of the V-shaped wiping section. Based on the premise that the cleaning liquid further improves the cleaning quality and reduces friction, the ability of the wiping cloth to absorb stains is further increased.

[0018] Specifically, the lower end of the cleaning liquid sprayer faces the wiping head and can be turned upside down for adjustment, and the cleaning liquid is sprayed toward the inner wall of the wiping cloth of the V-shaped wiping section. This avoids the cleaning liquid from being sprayed directly onto the screen, but is absorbed by the wiping cloth for wiping, so that the wiping is more uniform and is done in one go, reducing the residual rate of cleaning liquid on the display screen surface.

[0019] Due to the application of the above-mentioned technology and equipment solutions, the present invention has the following advantages compared with the prior art: In the existing screen cleaning, the screen surface stains are basically scraped off by the wiping part in a manner that the display screen moves and the wiping section does not move. However, the wiping section formed by the wiping cloth wipes the screen surface at the same position. Once the screen stains are difficult to remove, since the wiping surface formed by the wiping section does not change, the screen is continuously cleaned with the wiping cloth containing stains. Therefore, not only is the decontamination ability formed poor, but the stains on the wiping section are also likely to adhere to the display screen again. Obviously, it cannot meet the cleaning needs. At the same time, if the adaptive adjustment of the wiping height depends entirely on the deformation ability of the wiping cloth, once there are multiple height changes, the wiping cloth cannot restore the deformation, resulting in the wiping force being unable to be balanced, resulting in a high residual rate of stains or dust, thereby affecting the subsequent coating quality. In addition, there is also a method of wiping by moving the display screen and the wiping cloth in the opposite direction, but this method consumes a large amount of wiping cloth, has a high wiping cost, and also requires frequent replacement of the wiping cloth, which reduces wiping efficiency and other shortcomings. The present application makes an overall design of the screen cleaning structure, cleverly solving the shortcomings and defects of the prior art. After adopting the screen cleaning structure, the screen is first turned upward from the surface to be cleaned, and the screen is transferred from back to front based on the horizontal movement of the carrier; then, the wiping cloth path is arranged based on the rear end as the release end and the front end as the reeling end, and the wiping cloth is transferred from front to back and in sections; finally, based on the assistance of caching and release, the wiping head is pressed down to form a V-shaped wiping section, and the angle of the V-shaped wiping section changes synchronously with the change of the surface to be cleaned, and at the same time, the V-shaped The wiping section maintains reciprocating wiping along the width of the screen, and can also perform continuous wiping of the selected segmented wiping cloth while the wiping surface position of the V-shaped wiping section is reciprocating. Therefore, compared with the prior art, the present invention is based on caching and release on the one hand, which not only allows the wiping cloth to change the V-shaped wiping angle independently of elastic deformation, but also can replace the wiping surface of the segmented wiping cloth during wiping, thereby improving the decontamination ability while reducing the probability of stains adhering to the screen again; on the other hand, based on the follow-up fitting of the wiping section and the wiping head and the synchronous reciprocation along the width of the wiping cloth, not only is the wiping force formed balanced, but also wide-coverage decontamination is achieved, the decontamination quality is good, and the residual rate of stains or dust is low; in addition, the wiping cloth used is segmented wiping, and the consumption of the wiping cloth is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view schematic diagram of the screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping of this embodiment (partially omitted); Figure 2 for Figure 1 A schematic diagram of the main view of the middle wiping head when it is pressed down; Figure 3 It is a three-dimensional schematic diagram of the screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping of this embodiment; Figure 4 for Figure 3 Enlarged schematic diagram of the local structure Figure 5 for Figure 4 A schematic diagram of the main view; Figure 6 for Figure 5 AA section view; Figure 7 for Figure 4 A magnified schematic diagram of the structure at B in the middle; Wherein: 1. wiping cloth; d. wiping section; 2. Wiping head; 20. Resistance mold strip; 201. Horizontal section; 202. Arc section; 3. Lifting drive; 30. Lifting cylinder; 4. Wiping unit; 40. Wiping seat; 41. Wiping power device; 410. Transmission die seat; k. Strip hole; 411. Driving member; a. Eccentric wheel; 5. Cache unit; z. Cache roller group; 50. Cache roller; g. Telescopic cylinder; 51. First material guide roller; 52. Second material guide roller; 6. Cloth pressing unit; 60. Bottom roller; 61. Pressing roller; 610. Roller body; 7. Cleaning fluid injector; P. Screen. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0026] like Figures 1 to 7 As shown, the screen decontamination structure based on wiping cloth caching, segmented and continuous wiping of this embodiment includes a wiping cloth 1, a wiping head 2, a lifting drive 3, a wiping unit 4 and a cache unit 5 arranged on the transmission path of the wiping cloth 1; the screen P of this embodiment is transmitted horizontally and keeps the surface to be wiped facing upward.

[0027] Specifically, the wiping cloth 1 is arranged above the surface to be wiped; the lifting drive 3 is used to drive the wiping head 2 to move up and down, and the wiping head 2 presses down or separates from the wiping cloth 1 during the lifting movement, wherein the wiping head 2 presses down against the wiping cloth 1 to form a V-shaped wiping section d, and the wiping section d rises and falls synchronously and changes the V-shaped angle as the surface to be wiped of the screen P changes.

[0028] In this example, a strip-shaped abutment strip 20 is provided at the bottom of the wiping head 2 , wherein the abutment strip 20 is extended along the width direction of the wiping cloth 1 .

[0029] In some specific embodiments, the friction strip 20 uses a rubber strip to increase the friction between the friction strip 20 and the wiping cloth 1, and the length of the friction strip 20 is greater than the width of the wiping cloth 1 to eliminate the wiping dead angle; in the orthographic projection of the friction strip 20 in the extension direction, the bottom of the friction strip 20 forms a horizontal section 201 and arc sections 202 located on opposite sides of the horizontal section 201 in the length direction of the wiping cloth 1, wherein the arc sections 202 on both sides are tangent to the horizontal section 201. Here, the horizontal section can accurately match the wiping of the flat section of the screen, and the arc section can accurately match the wiping of the curved or inclined section of the screen, thereby ensuring the wiping effect while reducing the probability of screen damage.

[0030] In this example, the wiping unit 4 includes a wiping seat 40 matching the wiping head 2, and a wiping power device 41 arranged on the wiping seat 40 to drive the wiping head 2 to reciprocate and wipe along the width direction of the wiping cloth, wherein the wiping section d moves and wipes synchronously with the wiping head 2; the lifting drive 3 includes a lifting cylinder 30 that drives the wiping seat 40 to lift and lower; the wiping head 2 is hung and slidably connected to the wiping seat 40 along the width direction of the wiping cloth 1.

[0031] In some specific embodiments, the wiping power device 41 includes a transmission die base 410 fixedly connected to the wiping head 2 , and a driving member 411 disposed on the wiping base 40 and driving the transmission die base 410 to reciprocate along a direction perpendicular to the width of the wiping cloth 1 .

[0032] The transmission mold base 410 is formed with a strip hole k extending along the transmission direction of the screen P. The driving member 411 is a motor, wherein the output shaft of the motor is provided with an eccentric wheel a matching the strip hole k. The eccentric wheel a is installed in the strip hole k and drives the transmission mold base 410 to reciprocate in the eccentric motion. Since the wiping cloth forms a V-shaped wiping section under compression, the movement amplitude of the wiping section must be accurately controlled during the wiping motion (excessive amplitude is likely to cause the wiping cloth to break). The present application adopts the cooperation of the eccentric wheel and the strip hole, which can accurately achieve the short-distance micro-motion amplitude, and the motor load is small, which can achieve high-frequency and long-term operation, and is convenient for improving the wiping efficiency.

[0033] In this example, the wiping cloth 1 changes the contact position between the wiping cloth 1 and the wiping head 2 based on the buffering and the release, and adjusts the wiping position of the wiping cloth in the wiping section d.

[0034] For the convenience of implementation, the cache unit 5 includes two cache roller groups z located on opposite sides of the wiping unit 4 on the transmission path of the wiping cloth 1, wherein one of the two cache roller groups z caches the wiping cloth 1 and the other releases the wiping cloth 1 synchronously to adjust the wiping position of the wiping cloth 1 in the wiping section d, or one of the two cache roller groups z caches or releases the wiping cloth 1 and the other remains stationary to adjust the wiping position of the wiping cloth 1 in the wiping section d. Here, based on one of the two cache roller groups forming a cache and the other forming a release, it is possible to adjust the wiping position of the wiping cloth while the wiping section maintains a constant height and a V-shaped angle to suit the wiping of a continuous flat section of the screen, and it is also possible to adjust the wiping position of the wiping cloth while the height and the V-shaped angle of the wiping section change to suit the wiping of a continuously changing curved section of the screen; at the same time, based on one of the two cache roller groups forming a cache and the other remaining stationary, it is possible to adjust the wiping position of the wiping cloth while the height and the V-shaped angle of the wiping section change to suit the wiping of a continuously changing curved section of the screen; in addition, the two cache roller groups can also be used to periodically and synchronously cache and tighten the wiping cloth, increase the surface tension of the wiping cloth to eliminate wrinkles on the surface of the wiping cloth (wrinkles are easily formed on the surface of the wiping cloth during long-term reciprocating motion) and improve the flatness of the wiping cloth, thereby maintaining the cleaning effect while extending the service life of the wiping cloth, meeting the wiping of a larger number of screens, effectively saving the amount of wiping cloth and reducing costs.

[0035] In some specific embodiments, in the initial state, the two cache roller groups z are symmetrically arranged about the center line of the wiping section d; each cache roller group z includes a cache roller 50 that can be raised and lowered under the drive of a conventional telescopic cylinder g, a first guide roller 51 and a second guide roller 52 arranged above or below the cache roller 50, and the wiping cloth 1 passes through the cache roller 50, the first guide roller 51 or passes through the first guide roller 51 and the cache roller 50 in sequence, and when caching, the cache roller 50 is adjusted in the direction away from the first guide roller 51, and when released, the cache roller 50 is adjusted in the direction close to the first guide roller 51; the first guide roller 51 can be adjusted in the direction close to or away from the wiping unit 4; the two second guide rollers 52 are arranged at both ends of the wiping section d, and the two second guide rollers 52 are flush and can be raised and lowered; the total length of the wiping section d is greater than the spacing between the two second guide rollers 52. Here, the height of the second guide roller is adjusted to match the height change of the screen surface to ensure that a V-shaped wiping section can be formed. At the same time, the total length of the wiping section is greater than the spacing between the two second guide rollers, that is, before the wiping head contacts the wiping cloth, the wiping cloth between the two second guide rollers is in a relaxed state to adjust the wiping position.

[0036] The screen decontamination structure of this embodiment also includes a cloth pressing unit 6 arranged on the transmission path of the wiping cloth 1 and located on the side of any buffer roller group z away from the wiping unit, and the wiping position of the wiping cloth in the wiping section d is adjusted based on the cloth pressing unit 6 pressing the wiping cloth 1. Here, the caching or release is implemented based on the clamping and fixing of the wiping cloth, so as to facilitate the control of the total length of the wiping cloth passing through the buffer unit and the wiping unit, so as to accurately control the surface tension of the formed V-shaped wiping section and improve the wiping effect; at the same time, it can avoid interference with the wiping cloth of other processes in the continuous production line.

[0037] In some specific embodiments, the cloth pressing unit 6 includes a bottom roller 60 and a pressing roller 61 movably arranged above the bottom roller 60, wherein the wiping cloth 1 passes around the bottom roller 60, and the pressing roller 61 presses the wiping cloth 1 downward onto the bottom roller 60; the pressing roller 61 includes a plurality of roller bodies 610, and the plurality of roller bodies 610 are spaced and distributed around the center line of the bottom roller 60. Here, the pressing and fixing effect is good, and the probability of the wiping cloth being loosened is reduced.

[0038] In addition, the screen decontamination structure of this embodiment further includes a cleaning liquid sprayer 7, wherein the cleaning liquid sprayer 7 can spray the cleaning liquid onto the screen surface to be cleaned and / or the wiping cloth of the V-shaped wiping section. Based on the premise that the cleaning liquid further improves the cleaning quality and reduces friction, the ability of the wiping cloth to absorb stains is further increased.

[0039] Specifically, there are two cleaning liquid injectors 7 and they are spaced and arranged side by side along the width direction of the wiping cloth. The lower end of each cleaning liquid injector 7 faces the wiping head and can be adjusted by flipping up and down, and the cleaning liquid is sprayed toward the inner wall of the wiping cloth in the V-shaped wiping section. The cleaning liquid is not sprayed directly onto the screen, but is absorbed by the wiping cloth for wiping. In this way, the wiping is more uniform, and the wiping is done once, which reduces the residual rate of cleaning liquid on the surface of the display screen.

[0040] In summary, after adopting the screen decontamination structure, the screen is first turned upward from the surface to be cleaned, and the screen is transferred from back to front based on the horizontal movement of the carrier; then, the wiping cloth path is laid out based on the rear end as the release end and the front end as the retracted end, and the wiping cloth is transferred from front to back and in sections; finally, with the assistance of buffering and release, the wiping head is pressed down to form a V-shaped wiping section, and the angle of the V-shaped wiping section changes synchronously with the change of the surface to be cleaned, and at the same time, the V-shaped wiping section maintains reciprocating wiping along the wide direction of the screen, and can also perform continuous wiping of the selected segmented wiping cloth in the reciprocating change of the wiping surface position of the V-shaped wiping section. Therefore, compared with the prior art, the present invention is based on buffering and release on the one hand, which not only makes the wiping cloth independent of the elastic shape, but also can realize continuous wiping of the selected segmented wiping cloth. The V-shaped wiping angle can be changed, and the segmented wiping cloth can be replaced during wiping to improve the decontamination ability while reducing the probability of stains adhering to the screen again; on the other hand, based on the follow-up fitting of the wiping segment and the wiping head and the synchronous reciprocating along the wide width of the wiping cloth, not only the wiping force formed is balanced, but also the wide coverage decontamination, the decontamination quality is good, and the residual rate of stains or dust is low; in addition, the wiping cloth used is segmented wiping, and the consumption of wiping cloth is small; thirdly, since the wiping cloth forms a V-shaped wiping segment under compression, the movement amplitude of the wiping segment must be accurately controlled during the wiping movement (too large an amplitude can easily cause the wiping cloth to break). The present application adopts the cooperation of the eccentric wheel and the strip hole, which can accurately realize short-distance micro degrees of motion, and the motor load is small, which can achieve high-frequency and long-term operation, and is convenient for improving the wiping efficiency; fourthly, based on one of the two cache roller groups forming a cache and the other forming a release, it is possible to adjust the wiping position of the wiping cloth while the wiping section maintains a constant height and a V-shaped angle to adapt to the wiping of the continuous flat section of the screen, and it is also possible to adjust the wiping position of the wiping cloth while the wiping section is in a height and V-shaped angle change to adapt to the wiping of the continuously changing curved section of the screen; at the same time, based on one of the two cache roller groups forming a cache and the other keeping still, it is possible to adjust the wiping position of the wiping cloth while the wiping section is in a height and V-shaped angle change to adapt to the wiping of the continuously changing curved section of the screen; in addition, the two Each buffer roller group periodically and synchronously buffers and tightens the wiping cloth, increasing the surface tension of the wiping cloth to eliminate wrinkles on the surface of the wiping cloth and improve the flatness of the wiping cloth, thereby maintaining the cleaning effect and extending the service life of the wiping cloth, meeting the wiping of a larger number of screens, effectively saving the amount of wiping cloth and reducing costs; fifthly, by adjusting the height of the second guide roller to match the height change of the screen surface, a V-shaped wiping section can be formed; sixthly, based on the caching or release of the wiping cloth under compression and fixation, it is convenient to control the total length of the wiping cloth passing through the buffer unit and the wiping unit, so as to accurately control the surface tension of the V-shaped wiping section formed and improve the wiping effect; at the same time, it can avoid interference with the wiping cloth of other processes in a continuous production line.

[0041] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping, wherein the screen is horizontally transported and kept passing through the wiping area with the surface to be wiped facing upward, the screen decontamination structure comprises a wiping cloth arranged above the surface to be wiped, a wiping head, and a lifting driver for driving the wiping head to move up and down, wherein the wiping head presses down against the wiping cloth to form a V-shaped wiping section, and the wiping section rises and falls synchronously with the change of the surface to be wiped and changes the V-shaped angle, characterized in that: The screen decontamination structure also includes a wiping seat matched with the wiping head, a wiping power device arranged on the wiping seat to drive the wiping head to reciprocate along the width direction of the wiping cloth to cover and wipe, and a buffer unit arranged on the transmission path of the wiping cloth, wherein the wiping section moves and wipes synchronously with the wiping head; The cache unit includes two cache roller groups on the wiping cloth transmission path and located on opposite sides of the wiping head, wherein one of the two cache roller groups caches the wiping cloth and the other releases the wiping cloth synchronously to adjust the wiping position and / or the size of the V-shaped angle of the wiping cloth in the wiping section; or one of the two cache roller groups caches or releases the wiping cloth and the other remains stationary to adjust the wiping position and / or the size of the V-shaped angle of the wiping cloth in the wiping section.

2. The screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping according to claim 1 is characterized in that: The two buffer roller groups are symmetrically arranged about the center line of the wiping section.

3. The screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping according to claim 1 or 2, characterized in that: Each of the cache roller groups includes a cache roller that can be raised and lowered and a first material guide roller arranged above or below the cache roller. The wiping cloth passes through the cache roller and the first material guide roller in sequence, or passes through the first material guide roller and the cache roller in sequence. When caching, the cache roller is adjusted away from the first material guide roller, and when releasing, the cache roller is adjusted toward the first material guide roller.

4. The screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping according to claim 3 is characterized in that: The first guide roller can be adjusted to be closer to or farther away from the wiping unit; and / or each of the cache roller groups also includes a second guide roller, two of the second guide rollers are arranged at both ends of the wiping section, and the two second guide rollers are flush and can be adjusted to rise and fall; the total length of the wiping section is greater than the distance between the two second guide rollers.

5. The screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping according to claim 1 is characterized in that: The screen decontamination structure also includes a cloth pressing unit arranged on the wiping cloth transmission path and located on a side of any buffer roller group away from the wiping unit, and the wiping position of the wiping cloth in the wiping section is adjusted based on the cloth pressing unit pressing the wiping cloth.

6. The screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping according to claim 5 is characterized in that: The cloth pressing unit includes a bottom roller and a pressing roller movably arranged above the bottom roller, wherein the wiping cloth passes around the bottom roller, and the pressing roller presses the wiping cloth downward onto the bottom roller; the pressing roller includes a plurality of roller bodies, and the plurality of roller bodies are spaced apart and distributed around the center line of the bottom roller.

7. The screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping according to claim 1 is characterized in that: A strip-shaped interference mold strip is provided at the bottom of the wiping head, wherein the interference mold strip is extended along the width direction of the wiping cloth; in the orthographic projection of the interference mold strip in the extension direction, the bottom of the interference mold strip forms a horizontal section and arc sections located on opposite sides of the horizontal section in the length direction of the wiping cloth, wherein the arc sections on both sides are tangent to the horizontal section respectively.

8. The screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping according to claim 1 is characterized in that: The lifting driver comprises a lifting cylinder for driving the wiping seat to move upward and downward; the wiping head is slidably connected to the wiping seat along the width direction of the wiping cloth.

9. The screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping according to claim 1 is characterized in that: The wiping power device comprises a transmission die base fixedly connected to the wiping head, and a driving member arranged on the wiping base and driving the transmission die base to reciprocate and move along a direction perpendicular to the width of the wiping cloth.

10. The screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping according to claim 9, characterized in that: The transmission mold base is formed with a strip hole extending along the screen transmission direction. The driving member is a motor, wherein an eccentric wheel matching the strip hole is provided on the output shaft of the motor. The eccentric wheel is installed in the strip hole and drives the transmission mold base to reciprocate in eccentric motion.

11. The screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping according to claim 1 is characterized in that: The screen decontamination structure further comprises a cleaning liquid sprayer, wherein the cleaning liquid sprayer is capable of spraying cleaning liquid onto the surface to be cleaned of the screen and / or the wiping cloth of the V-shaped wiping section.

12. The screen decontamination structure based on wiping cloth buffering, segmented and continuous wiping according to claim 11, characterized in that: The lower end of the cleaning liquid sprayer faces the wiping head and can be turned upside down for adjustment, and the formed cleaning liquid is sprayed toward the inner wall of the wiping cloth of the V-shaped wiping section.

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