A step-by-step and segmented vehicle screen surface cleaning device

Abstract

The present invention discloses a stepwise and segmented vehicle screen surface cleaning device, which includes a dust-free cloth reeling and unreeling unit, a wiping unit located on the dust-free cloth transmission path, and a vehicle screen transmission unit. On the one hand, the present invention is based on the reverse transmission of the dust-free cloth and the vehicle screen, so that during the stepwise and segmented wiping, the cleanliness of the dust-free cloth contacted by the vehicle screen is gradually improved, and the cleaning effect is significantly improved. At the same time, the used dust-free cloth can be used for the cleaning of the next vehicle screen, which effectively reduces the consumption of dust-free cloth and reduces the cost; on the other hand, the wiping head is synchronously raised and lowered and the V-shaped angle is changed as the vehicle screen surface changes, so as to accurately match the changes in the vehicle screen surface and flexibly meet the wiping requirements for the continuous and multi-changing vehicle screen surface; in addition, the wiping position of the dust-free cloth is adjusted online in real time, so as to ensure that the dust-free cloth reciprocates and wipes the vehicle screen surface at different positions, avoid secondary pollution, and ensure the cleaning quality.

Description

Technical Field

[0001] The invention belongs to the technical field of cleaning, and in particular relates to a stepwise and segmented vehicle-mounted screen surface cleaning device. Background Art

[0002] Currently, in the production of electronic display screens, screen surface cleaning is an essential process. In this cleaning process, impurities on the screen surface are usually wiped with a dust-free cloth.

[0003] However, some car display screens adopt a curved screen design. In the actual cleaning process, the use of conventional cleaning equipment is prone to the following technical difficulties:

[0004] 1. Conventional cleaning equipment uses a pressure bar to press the dust-free cloth, so that the dust-free cloth contacts the screen surface, and the dust-free cloth wipes the screen in the relative movement between the screen and the dust-free cloth. However, when using this method, the dust-free cloth always keeps the same position (i.e. the position where the pressure bar presses) to contact the screen for wiping. Therefore, it is difficult to ensure the cleaning effect for the back half of the screen or the screen to be cleaned at the back, and it is easy to cause secondary pollution;

[0005] 2. Conventional car display screens are all regular curved screens or flat screens. The cleaning can be completed by simply moving the pressure bar regularly relative to the screen surface or swinging it. However, for car screens that are a combination of curved and flat surfaces, conventional cleaning equipment is difficult to flexibly adapt to the changes in the screen surface angle, and thus cannot meet the cleaning needs;

[0006] 3. Each car screen needs to be wiped with a large amount of clean dust-free cloth to clean the stains on its surface. The dust-free cloth is consumed quickly and the cost is high. Summary of the invention

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a new type of multi-stage and segmented vehicle screen surface cleaning equipment.

[0008] To achieve the above object, the present invention adopts the following scheme:

[0009] A stepwise and segmented vehicle screen surface cleaning device, comprising a dust-free cloth reeling and unreeling unit, a wiping unit located on a dust-free cloth transmission path, and a vehicle screen transmission unit, wherein the transmission direction of the vehicle screen is opposite to that of the dust-free cloth; the wiping unit comprises a plurality of wiping groups which are distributed step by step along the transmission direction of the vehicle screen and correspond one-to-one to different wiping segments on the dust-free cloth, wherein the wiping segments pass through each wiping group in sequence along the transmission direction of the dust-free cloth, and the vehicle screen surface is wiped by the plurality of wiping groups in steps;

[0010] Each wiping group includes a wiping module extending along the width direction of the vehicle screen and floating along the surface of the vehicle screen, and a wiping power device driving the wiping module to reciprocate along the width direction of the vehicle screen, wherein the wiping module contacts the dust-free cloth and presses down to form a V-shaped wiping head, and the wiping head rises and falls synchronously and changes the V-shaped angle as the surface of the vehicle screen changes, and the wiping section changes the contact position of the wiping module and the dust-free cloth synchronously with the change of the wiping head to adjust the wiping position of the dust-free cloth in the wiping section.

[0011] According to a specific implementation and preferred aspect of the present invention, the dust-free cloth rewinding and unwinding unit includes an unwinder, a rewinder and a cloth presser, wherein the cloth presser is correspondingly arranged between each two adjacent wiping groups and is used to compress and fix the dust-free cloth located between the two adjacent wiping groups, and each wiping section adjusts the wiping position of the dust-free cloth based on the cloth presser compressing the dust-free cloth. Here, based on the dust-free cloth being compressed and fixed, caching or releasing is implemented to facilitate the control of the total length of the wiping section, so as to be able to accurately control the surface tension of the V-shaped wiping head formed and improve the wiping effect; at the same time, it can avoid interference with the dust-free cloth of other processes in the multiple and segmented cleaning line.

[0012] Preferably, the cloth presser comprises a bottom roller and a pressing roller movably arranged above the bottom roller, wherein the dust-free cloth passes around the bottom roller, and the pressing roller presses the dust-free cloth against the bottom roller downward; the pressing roller comprises a plurality of single roller bodies, and the plurality of single 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 dust-free cloth loosening is reduced.

[0013] Preferably, the dust-free cloth reeling and unwinding unit further comprises a shaping device arranged on the dust-free cloth transmission path and close to the unwinder and the rewinder respectively, the shaping device comprises a device seat located below the dust-free cloth, a shaping plate movably arranged above the dust-free cloth, the shaping plate presses the dust-free cloth on the top surface of the device seat to drive the dust-free cloth to be reeled and unwound flatly; the shaping plate protrudes downward from the middle and forms a shaping end extending along the width direction of the dust-free cloth. Here, when the dust-free cloth is unwound and rewound, the shaping plate drives the dust-free cloth to remain flat, so as to avoid folding or wrinkling of the dust-free cloth, ensure the cleaning area formed by the dust-free cloth, and facilitate the flat rewinding of the dust-free cloth.

[0014] Preferably, the wiping pressure formed by the multiple wiping groups on the surface of the vehicle screen increases step by step along the transmission direction of the vehicle screen. Here, by increasing the wiping pressure step by step in batches, the wiping effect is gradually improved to avoid damage to the screen caused by excessive pressure in one wiping.

[0015] According to another specific implementation and preferred aspect of the present invention, the wiping power device includes a wiping seat, a lifting power member driving the wiping seat to lift and lower, a transmission die seat fixedly connected to the wiping module, and a wiping power member arranged on the wiping seat and driving the transmission die seat to reciprocate and move along a direction perpendicular to the width of the dust-free cloth, wherein the wiping module is slidably connected to the wiping seat along the width of the vehicle screen. Here, the structure is simple and easy to install and implement.

[0016] Preferably, a strip hole extending along the transmission direction of the vehicle-mounted screen is formed on the transmission mold base, and the wiping power part adopts 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 dust-free cloth forms a V-shaped wiping head under compression, the movement amplitude of the wiping head must be accurately controlled during the wiping movement (excessive amplitude can easily cause the dust-free cloth to break). The present application adopts the cooperation of the eccentric wheel and the strip hole, which can accurately realize the short-distance micro-motion amplitude, and the motor load is small, which can realize high-frequency and long-term operation, and is convenient for improving the wiping efficiency.

[0017] Preferably, the bottom of the wiping module forms a contact end, and in the orthographic projection in the width direction of the vehicle-mounted screen, the bottom of the contact end forms a horizontal segment and arc segments located on opposite sides of the horizontal segment in the transmission direction of the vehicle-mounted screen, wherein the arc segments on both sides are tangent to the horizontal segment respectively. Here, the horizontal segment can accurately match the wiping of the flat segment of the screen, and the arc segment can accurately match the wiping of the curved or inclined segment of the screen, thereby ensuring the wiping effect while reducing the probability of screen damage.

[0018] According to another specific implementation and preferred aspect of the present invention, each wiping group also includes a buffer arranged on the dust-free cloth transmission path and used to cache or release the dust-free cloth. When adjusting the wiping position of the dust-free cloth in the wiping section, the height and V-angle of the wiping head are adjusted based on the caching or release of the dust-free cloth.

[0019] Preferably, in each wiping group, the buffer includes two cache components located on opposite sides of the wiping module on the dust-free cloth transmission path, wherein one of the two cache components caches the dust-free cloth and the other releases the dust-free cloth synchronously, or one of the two cache components caches or releases the dust-free cloth and the other remains stationary. Here, based on one of the two cache components forming a cache and the other forming a release, it is possible to adjust the wiping position of the dust-free 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 dust-free cloth while the wiping section is in a state of changing height and a V-shaped angle to suit the wiping of a continuously changing curved section of the screen; at the same time, based on one of the two cache components forming a cache and the other remaining stationary, it is possible to adjust the wiping position of the dust-free cloth while the wiping section is in a state of changing height and a V-shaped angle to suit the wiping of a continuously changing curved section of the screen; in addition, the two cache components can be used to periodically and synchronously cache and tighten the dust-free cloth, increase the surface tension of the dust-free cloth to eliminate wrinkles on the surface of the dust-free cloth (wrinkles are easily formed on the surface of the dust-free cloth during long-term reciprocating motion) and improve the flatness of the dust-free cloth, thereby maintaining the cleaning effect while extending the service life of the dust-free cloth, meeting the wiping of a larger number of screens, effectively saving the use of dust-free cloth and reducing costs.

[0020] Specifically, each cache component includes a cache roller that can be raised and lowered and adjusted, and a first guide roller arranged above or below the cache roller. The dust-free cloth passes through the cache roller and the first guide roller in sequence, or passes through the first guide roller and the cache roller in sequence. When caching, the cache roller is adjusted away from the first guide roller, and when releasing, the cache roller is adjusted toward the first guide roller.

[0021] Furthermore, the first guide roller can be adjusted to move closer to or farther from the wiping module; and / or, each cache assembly further includes a second guide roller, two second guide rollers are arranged at both ends of the wiping head, and the two second guide rollers are flush and can be adjusted up and down; the total length of the wiping head 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 head can be formed, and based on the fact that the total length of the wiping head is greater than the distance between the two second guide rollers, that is, before the wiping module contacts the dust-free cloth, the dust-free cloth between the two second guide rollers is in a relaxed state, so as to adjust the wiping position.

[0022] According to another specific implementation and preferred aspect of the present invention, each wiping group further includes a sprayer, which includes a spray seat, a spray head disposed on the spray seat and used to spray alcohol to the wiping head, wherein the spray angle of the spray head can be adjusted synchronously with the change of the surface to be wiped of the vehicle-mounted screen. Here, it is ensured that the alcohol accurately covers the wiping head at any height or V-shaped angle.

[0023] In addition, a connection module is provided on the spray seat, wherein an arc groove is formed on the connection module, and the spray head is slidably connected in the arc groove; and / or, there are two spray heads and they are arranged on opposite sides of the wiping head in the width direction of the dust-free cloth.

[0024] Due to the application of the above-mentioned technology and equipment solutions, the present invention has the following advantages compared with the prior art:

[0025] The existing cleaning equipment uses a pressure bar to press the dust-free cloth and make the dust-free cloth contact the screen surface, and the dust-free cloth wipes the screen during the relative movement between the screen and the dust-free cloth. However, when using this method, the dust-free cloth always maintains the same position (i.e., the position where the pressure bar is pressed) to contact the screen for wiping, so it is difficult to ensure the cleaning effect for the second half of the screen or the back of the screen to be cleaned; at the same time, conventional vehicle display screens are all regular curved screens or straight screens, and wiping can be completed by only keeping the pressure bar in regular translation or swing relative to the screen surface. However, for a combination of curved and flat vehicle screens, conventional cleaning equipment is difficult to flexibly adapt to changes in the screen surface angle, and thus cannot meet cleaning requirements; in addition, each vehicle screen requires a large amount of clean dust-free cloth to clean the stains on its surface, and the dust-free cloth is consumed quickly and the cost is high. The present application makes an overall design for the structure of the multi-stage and segmented vehicle screen surface cleaning equipment, which cleverly solves the shortcomings and defects of the prior art. After adopting the cleaning equipment, the vehicle screen is driven to be transported horizontally and the surface to be wiped is kept facing upward, and the transmission direction of the dust-free cloth is driven to be opposite to the transmission direction of the vehicle screen, wherein multiple wiping sections on the dust-free cloth pass through each wiping group in turn to wipe the surface of the vehicle screen in batches; in each wiping, a wiping module extending along the width direction of the vehicle screen and floating with the surface of the vehicle screen contacts and presses down with the dust-free cloth to form a V-shaped wiping head, which rises and falls synchronously and changes the V-shaped angle as the surface of the vehicle screen changes to match the wiping requirements at any position on the surface of the vehicle screen. In addition, the wiping section of the dust-free cloth changes the contact position of the wiping module and the dust-free cloth synchronously with the change of the wiping head to adjust the wiping position of the dust-free cloth in the wiping section. Therefore, compared with the prior art, the present invention is based on the reverse transmission of the dust-free cloth and the vehicle-mounted screen, so that the cleanliness of the dust-free cloth in contact with the vehicle-mounted screen can be gradually improved during the multiple and segmented wiping, thereby significantly improving the cleaning effect. At the same time, the used dust-free cloth can be used for the cleaning of the next vehicle-mounted screen, effectively reducing the consumption of dust-free cloth and reducing costs. On the other hand, the wiping head can be raised and lowered and the V-shaped angle can be changed synchronously with the changes in the surface of the vehicle-mounted screen to accurately match the changes in the surface of the vehicle-mounted screen and flexibly meet the wiping needs of the continuous and multi-changing vehicle-mounted screen surface. In addition, the wiping position of the dust-free cloth can be adjusted online in real time to ensure that the dust-free cloth wipes the surface of the vehicle-mounted screen back and forth at different positions to avoid secondary pollution and ensure cleaning quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a schematic diagram of the three-dimensional structure of the step-by-step and segmented vehicle screen surface cleaning device of this embodiment;

[0027] Figure 2 for Figure 1 A magnified schematic diagram of the local structure;

[0028] Figure 3 for Figure 2 A schematic diagram of the main view;

[0029] Figure 4 for Figure 3 A magnified schematic diagram of the three-dimensional structure of the middle wiping power device and the sprayer;

[0030] Figure 5 for Figure 4 Schematic diagram of the local structure from top view;

[0031] Figure 6 for Figure 4 A magnified schematic diagram of the local structure;

[0032] Figure 7 for Figure 3 A magnified schematic diagram of the local structure (wiping module pressed down);

[0033] Wherein: 1. dust-free cloth rewinding and unwinding unit; 10. unwinder; 11. rewinder; 12. cloth presser; 120. bottom roller; 121. pressing roller; a. single roller body; 13. shaping device; 130. device seat; 131. shaping plate; b. shaping end;

[0034] 2. Vehicle screen transmission unit; 20. Transmission line; 21. Positioning mold base;

[0035] 3. Wiping unit; z. Wiping group; 30. Wiping module; 300. Horizontal section; 301. Arc section; t. Wiping head; 31. Wiping power device; 310. Wiping seat; 311. Lifting power part; 312. Transmission mold base; k. Strip hole; 313. Wiping power part; c. Eccentric wheel; 32. Buffer; 320. Buffer assembly; d0. Buffer roller; d00. Telescopic cylinder; d1. First guide roller; d2. Second guide roller; 33. Sprayer; 330. Spray seat; e. Connection module; e0. Arc groove; 331. Spray head;

[0036] B. Dust-free cloth; P. Car screen. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] like Figures 1 to 7 As shown, the multi-stage and segmented vehicle screen surface cleaning device of this embodiment includes a dust-free cloth reeling and unreeling unit 1, a vehicle screen transmission unit 2, and a wiping unit 3 located on the dust-free cloth B transmission path.

[0043] Specifically, the dust-free cloth rewinding and unwinding unit 1 includes an unwinder 10, a reel 11, a cloth presser 12, a shaper 13 and a guide roller for assisting the transmission and guiding of the dust-free cloth B; the vehicle-mounted screen transmission unit 2 includes a horizontally extending transmission line 20, a positioning mold base 21 slidably arranged on the transmission line 20 and used to position the vehicle-mounted screen P with the surface to be wiped facing upward, wherein the transmission direction of the vehicle-mounted screen P is opposite to the transmission direction of the dust-free cloth B; the wiping unit 3 includes a plurality of wiping groups z that are distributed step by step along the transmission direction of the vehicle-mounted screen P and correspond one-to-one to different wiping sections on the dust-free cloth B, wherein the wiping sections pass through each wiping group z in sequence along the transmission direction of the dust-free cloth, and the surface of the vehicle-mounted screen is wiped in batches by the plurality of wiping groups z.

[0044] In this example, the unwinder 10 and the rewinder 11 are both conventional dust-free cloth unwinding and rewinding mechanisms, which will not be described in detail here; the cloth presser 12 is correspondingly arranged between each two adjacent wiping groups z and is used to press and fix the dust-free cloth B located between the two adjacent wiping groups z.

[0045] In some specific embodiments, the cloth presser 12 includes a bottom roller 120 and a pressing roller 121 movably disposed above the bottom roller 120, wherein the dust-free cloth passes around the bottom roller 120, and the pressing roller 121 is driven downward by a cylinder to press the dust-free cloth B onto the bottom roller 120; the pressing roller 121 includes a plurality of single roller bodies a, and the plurality of single roller bodies a are spaced around the center line of the bottom roller 120. Here, the pressing and fixing effect is good, and the probability of the dust-free cloth being loosened is reduced.

[0046] For the convenience of implementation, the dust-free cloth reeling and unwinding unit 1 also includes a shaper 13 arranged on the transmission path of the dust-free cloth B and close to the unwinder 10 and the rewinder 11 respectively. The shaper 13 includes a base 130 located below the dust-free cloth B and a shaping plate 131 movably arranged above the dust-free cloth B. The shaping plate 131 presses the dust-free cloth B on the top surface of the base 130 to drive the dust-free cloth to be flatly reeled and unrolled; the shaping plate 131 protrudes downward from the middle and forms a shaping end b extending along the width direction of the dust-free cloth. Here, when the dust-free cloth is unrolled and reeled, the shaping plate drives the dust-free cloth to remain flat, so as to avoid folding or wrinkling of the dust-free cloth, ensure the cleaning area formed by the dust-free cloth, and facilitate the flat reeling of the dust-free cloth.

[0047] In this example, the wiping pressure formed by the multiple wiping groups z on the surface of the vehicle screen increases step by step along the transmission direction of the vehicle screen. Here, by increasing the wiping pressure step by step in batches, the wiping effect is gradually improved to avoid damage to the screen caused by excessive pressure in one wiping.

[0048] In some specific embodiments, each wiping group z includes a wiping module 30 extending along the width direction of the vehicle-mounted screen P and floating along the surface of the vehicle-mounted screen P, and a wiping power device 31 driving the wiping module 30 to reciprocate along the width direction of the vehicle-mounted screen, wherein the wiping module 30 contacts and presses down with the dust-free cloth B to form a V-shaped wiping head t, and the wiping head t rises and falls synchronously and changes the V-shaped angle as the surface of the vehicle-mounted screen changes, and the wiping section changes the contact position of the wiping module 30 and the dust-free cloth B synchronously with the change of the wiping head t to adjust the wiping position of the dust-free cloth B in the wiping section. At the same time, each wiping section adjusts the wiping position of the dust-free cloth based on the cloth presser 12 pressing the dust-free cloth B. Here, based on the implementation of caching or releasing under the clamping and fixing of the dust-free cloth, it is convenient to control the total length of the wiping section, so as to accurately control the surface tension of the V-shaped wiping head formed and improve the wiping effect; at the same time, it can avoid interference with the dust-free cloth of other processes in the cleaning line of the steps and sections.

[0049] The bottom of the wiping module 30 forms a rubber-made abutment end. In the orthographic projection in the width direction of the vehicle-mounted screen P, the bottom of the abutment end forms a horizontal section 300 and arc sections 301 located on opposite sides of the horizontal section 300 in the transmission direction of the vehicle-mounted screen P, wherein the arc sections 301 on both sides are tangent to the horizontal section 300. 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.

[0050] The wiping power device 31 includes a wiping seat 310, a lifting power member 311 driving the wiping seat 310 to move up and down, a transmission die seat 312 fixedly connected to the wiping module 30, and a wiping power member 313 arranged on the wiping seat 310 and driving the transmission die seat 312 to reciprocate and transversely move along the width direction of the dust-free cloth B, wherein the wiping module 30 is hung and slidably connected to the wiping seat 310 along the width direction of the vehicle-mounted screen. A strip hole k extending along the transmission direction of the vehicle-mounted screen is formed on the transmission die seat 312, and the wiping power member 313 adopts a motor, wherein an eccentric wheel c matching the strip hole is arranged on the output shaft of the motor, and the eccentric wheel c is installed in the strip hole k and drives the transmission die seat 312 to reciprocate in the eccentric motion. Since the dust-free cloth forms a V-shaped wiping head under compression, the movement amplitude of the wiping head must be precisely controlled during the wiping movement (too large an amplitude can easily cause the dust-free cloth to break). The present application uses an eccentric wheel and a strip hole to accurately achieve a short-distance and micro-motion amplitude, and the motor load is small, which can achieve high-frequency and long-term operation, thereby improving the wiping efficiency.

[0051] To further facilitate implementation, each wiping group z also includes a buffer 32 arranged on the dust-free cloth transmission path and used to cache or release the dust-free cloth. When adjusting the wiping position of the dust-free cloth in the wiping section, the height and V-angle of the wiping head t are adjusted based on the cache or release of the dust-free cloth.

[0052] In each wiping group z, the buffer 32 includes two buffer components 320 located on opposite sides of the wiping module 30 on the dust-free cloth transmission path, wherein one of the two buffer components 320 buffers the dust-free cloth and the other releases the dust-free cloth synchronously, or one of the two buffer components 320 buffers or releases the dust-free cloth and the other remains stationary. Here, based on one of the two cache components forming a cache and the other forming a release, it is possible to adjust the wiping position of the dust-free 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 dust-free cloth while the wiping section is in a state of changing height and a V-shaped angle to suit the wiping of a continuously changing curved section of the screen; at the same time, based on one of the two cache components forming a cache and the other remaining stationary, it is possible to adjust the wiping position of the dust-free cloth while the wiping section is in a state of changing height and a V-shaped angle to suit the wiping of a continuously changing curved section of the screen; in addition, the two cache components can be used to periodically and synchronously cache and tighten the dust-free cloth, increase the surface tension of the dust-free cloth to eliminate wrinkles on the surface of the dust-free cloth (wrinkles are easily formed on the surface of the dust-free cloth during long-term reciprocating motion) and improve the flatness of the dust-free cloth, thereby maintaining the cleaning effect while extending the service life of the dust-free cloth, meeting the wiping of a larger number of screens, effectively saving the use of dust-free cloth and reducing costs.

[0053] Specifically, each cache assembly 320 includes a cache roller d0 that can be raised and lowered by a conventional telescopic cylinder d00, a first guide roller d1 and a second guide roller d2 arranged above or below the cache roller d0. The dust-free cloth B passes through the cache roller d0 and the first guide roller d1 in sequence, or passes through the first guide roller d1 and the cache roller d0 in sequence. When caching, the cache roller d0 is adjusted in the direction away from the first guide roller d1, and when releasing, the cache roller d0 is adjusted in the direction close to the first guide roller d1; the first guide roller d1 can be adjusted in the direction close to or away from the wiping module 30; two second guide rollers d2 are arranged at both ends of the wiping head t, and the two second guide rollers d2 are flush and can be raised and lowered; the total length of the wiping head t is greater than the spacing between the two second guide rollers d2. 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 head can be formed. At the same time, based on the fact that the total length of the wiping head is greater than the spacing between the two second guide rollers, that is, before the wiping module contacts the dust-free cloth, the dust-free cloth between the two second guide rollers is in a relaxed state to adjust the wiping position.

[0054] In addition, each wiping group z also includes a sprayer 33, which includes a spray seat 330 and a spray head 331 disposed on the spray seat 330 and used to spray alcohol to the wiping head t, wherein the spray angle of the spray head 331 can be adjusted synchronously with the change of the surface to be wiped of the vehicle-mounted screen P. Here, it is ensured that the alcohol accurately covers the wiping head at any height or V-shaped angle.

[0055] Specifically, a connection module e is provided on the spray seat 330, wherein an arc groove e0 is formed on the connection module e, and the spray head 331 is slidably connected in the arc groove e0; there are two spray heads 331 and they are arranged on opposite sides of the dust-free cloth B in the width direction and close to the wiping head t.

[0056] In summary, after adopting the cleaning equipment, the vehicle-mounted screen is driven to be transported horizontally and the surface to be wiped is kept facing upward, and the transmission direction of the dust-free cloth is driven to be opposite to the transmission direction of the vehicle-mounted screen, wherein the multiple wiping sections on the dust-free cloth pass through each wiping group in turn to wipe the surface of the vehicle-mounted screen in batches; in each wiping, the wiping module extending along the width direction of the vehicle-mounted screen and floating with the surface of the vehicle-mounted screen contacts and presses down with the dust-free cloth to form a V-shaped wiping head, which rises and falls synchronously and changes the V-shaped angle as the surface of the vehicle-mounted screen changes to match the wiping requirements at any position on the surface of the vehicle-mounted screen. In addition, the wiping section of the dust-free cloth changes the contact position of the wiping module and the dust-free cloth synchronously with the change of the wiping head to adjust the wiping position of the dust-free cloth in the wiping section. Therefore, compared with the prior art, the present invention, on the one hand, is based on the reverse transmission of the dust-free cloth and the vehicle-mounted screen, so that the cleanliness of the dust-free cloth in contact with the vehicle-mounted screen can be gradually improved during the multiple and segmented wiping, thereby significantly improving the cleaning effect. At the same time, the used dust-free cloth can be used for the cleaning of the next vehicle-mounted screen, effectively reducing the consumption of dust-free cloth and reducing costs. On the other hand, the wiping head is synchronously raised and lowered and the V-shaped angle is changed as the surface of the vehicle-mounted screen changes, so as to accurately match the changes in the surface of the vehicle-mounted screen and flexibly meet the needs of wiping the surface of the vehicle-mounted screen with continuous and multi-changing changes. In addition, the online real-time adjustment of the dust-free cloth can be achieved. The wiping position is determined by the position of the dust-free cloth, thereby ensuring that the dust-free cloth reciprocates and wipes the surface of the vehicle screen at different positions to avoid secondary contamination and ensure the cleaning quality; thirdly, based on the dust-free cloth being pressed and fixed, caching or releasing is implemented to facilitate the control of the total length of the wiping section, so that the surface tension of the V-shaped wiping head formed can be accurately controlled to improve the wiping effect; at the same time, it can avoid interference with the dust-free cloth in other processes in the segmented and segmented cleaning line; fourthly, when the dust-free cloth is unrolled and reeled, the dust-free cloth is driven to remain flat through the shaping plate, so as to avoid folding or wrinkling of the dust-free cloth and ensure that the dust-free cloth is formed The cleaning area is formed, and the dust-free cloth is easy to roll up smoothly; fifthly, by increasing the wiping pressure step by step, the wiping effect is gradually improved to avoid damage to the screen caused by excessive pressure in one wiping; sixthly, since the dust-free cloth forms a V-shaped wiping head under compression, the movement amplitude of the wiping head must be accurately controlled during the wiping movement (excessive amplitude can easily cause the dust-free cloth to break). The present application adopts the cooperation of the eccentric wheel and the strip hole, which can accurately realize the short-distance micro-motion amplitude, and the motor load is small, which can realize high-frequency and long-term operation, and is convenient for improving the wiping efficiency; seventhly In the first aspect, 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; in the eighth aspect, based on one of the two cache components forming a cache and the other forming a release, it is possible to adjust the wiping position of the dust-free cloth while the wiping section maintains a constant height and a V-shaped angle to suit the wiping of the continuous flat section of the screen, and to adjust the wiping position of the dust-free cloth while the wiping section is in a height and V-shaped angle change to suit the wiping of the continuously changing curved section of the screen;At the same time, based on the formation of a cache in one of the two cache components and the other remaining stationary, the wiping position of the dust-free cloth can be adjusted when the wiping section is in a height and V-shaped angle change to adapt to the wiping of the continuously changing curved section screen; in addition, the two cache components can be used to periodically synchronize the cache to tighten the dust-free cloth, increase the surface tension of the dust-free cloth to eliminate the wrinkles on the surface of the dust-free cloth (in long-term reciprocating motion, the surface of the dust-free cloth is prone to wrinkles) and improve the flatness of the dust-free cloth, while maintaining the cleaning effect, extending the service life of the dust-free cloth, meeting the wiping of more screens, effectively saving the amount of dust-free cloth, and reducing costs; ninthly, the spray angle of the spray head can be adjusted synchronously with the changes in the surface to be wiped of the vehicle-mounted screen, ensuring that the alcohol accurately covers the wiping head at any height or V-shaped angle. ;

[0057] 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 stepwise and segmented vehicle screen surface cleaning device, comprising a dust-free cloth reeling and unreeling unit, a wiping unit located on the dust-free cloth transmission path, and a vehicle screen transmission unit, characterized in that: The transmission direction of the vehicle screen is opposite to that of the dust-free cloth; the wiping unit includes a plurality of wiping groups which are distributed step by step along the transmission direction of the vehicle screen and correspond one by one to different wiping sections on the dust-free cloth, wherein the wiping sections pass through each of the wiping groups in sequence along the transmission direction of the dust-free cloth, and the surface of the vehicle screen is wiped by the plurality of wiping groups in sequence; The dust-free cloth rewinding and unwinding unit comprises an unwinder, a rewinder and a cloth presser, wherein the cloth presser is correspondingly arranged between each two adjacent wiping groups and is used to press and fix the dust-free cloth between the two adjacent wiping groups, and each of the wiping sections adjusts the wiping position of the dust-free cloth based on the cloth presser pressing the dust-free cloth; Each of the wiping groups includes a wiping module extending along the width direction of the vehicle-mounted screen and floating with the surface of the vehicle-mounted screen, and a wiping power device driving the wiping module to reciprocate along the width direction of the vehicle-mounted screen, wherein the wiping module contacts the dust-free cloth and presses down to form a V-shaped wiping head, and each of the wiping groups also includes a buffer arranged on the dust-free cloth transmission path and used to cache or release the dust-free cloth. The wiping head rises and falls synchronously and changes the V-shaped angle as the surface of the vehicle-mounted screen changes. Based on the caching or release of the dust-free cloth and the change of the wiping section with the wiping head, the contact position of the wiping module and the dust-free cloth is synchronously changed to adjust the wiping position of the dust-free cloth in the wiping section.

2. The stepwise and segmented vehicle screen surface cleaning device according to claim 1 is characterized in that: The cloth presser includes a bottom roller and a pressing roller movably arranged above the bottom roller, wherein the dust-free cloth passes around the bottom roller, and the pressing roller presses the dust-free cloth downward onto the bottom roller; the pressing roller includes a plurality of single roller bodies, and the plurality of single roller bodies are spaced apart and distributed around the center line of the bottom roller.

3. The stepwise and segmented vehicle screen surface cleaning device according to claim 1 is characterized in that: The dust-free cloth winding and unwinding unit also includes a shaper arranged on the dust-free cloth transmission path and close to the unwinder and the rewinder respectively, the shaper includes a device seat located below the dust-free cloth, and a shaping plate movably arranged above the dust-free cloth, the shaping plate presses the dust-free cloth down on the top surface of the device seat to drive the dust-free cloth to be flatly wound and unwound; the shaping plate protrudes downward from the middle and forms a shaping end extending along the width direction of the dust-free cloth.

4. The stepwise and segmented vehicle screen surface cleaning device according to claim 1 is characterized in that: The wiping pressure formed by the multiple wiping groups on the surface of the vehicle-mounted screen increases step by step along the transmission direction of the vehicle-mounted screen.

5. The stepwise and segmented vehicle screen surface cleaning device according to claim 1 is characterized in that: The wiping power device includes a wiping seat, a lifting power component that drives the wiping seat to lift and lower, a transmission mold base fixedly connected to the wiping module, and a wiping power component that is arranged on the wiping seat and drives the transmission mold base to reciprocate and move horizontally along a direction perpendicular to the width of the dust-free cloth, wherein the wiping module is slidably connected to the wiping seat along the width direction of the vehicle screen.

6. The stepwise and segmented vehicle screen surface cleaning device according to claim 5 is characterized in that: The transmission mold base is formed with a strip hole extending along the transmission direction of the vehicle-mounted screen. The wiping power part adopts 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 the eccentric motion.

7. The multiple and segmented vehicle screen surface cleaning device according to claim 1, 5 or 6, characterized in that: The bottom of the wiping module forms a resistance end. In the orthographic projection in the width direction of the vehicle screen, the bottom of the resistance end forms a horizontal section, and arc sections are formed on opposite sides of the horizontal section in the transmission direction of the vehicle screen, wherein the arc sections on both sides are tangent to the horizontal section respectively.

8. The multiple and segmented vehicle screen surface cleaning device according to claim 1 is characterized in that: In each of the wiping groups, the buffer includes two cache components located on opposite sides of the wiping module on the dust-free cloth transmission path, wherein one of the two cache components caches the dust-free cloth and the other releases the dust-free cloth synchronously, or one of the two cache components caches or releases the dust-free cloth and the other remains stationary.

9. The multiple and segmented vehicle screen surface cleaning device according to claim 8 is characterized in that: Each of the cache components includes a cache roller that can be raised and lowered and a first guide roller arranged above or below the cache roller. The dust-free cloth passes through the cache roller and the first guide roller in sequence, or passes through the first guide roller and the cache roller in sequence. When caching, the cache roller is adjusted away from the first guide roller, and when releasing, the cache roller is adjusted toward the first guide roller.

10. The multiple and segmented vehicle screen surface cleaning device according to claim 9 is characterized in that: The first guide roller can be adjusted to be closer to or farther away from the wiping module; and / or, each of the cache components also includes a second guide roller, two of the second guide rollers are arranged at both ends of the wiping head, and the two second guide rollers are flush and can be adjusted to rise and fall; the total length of the wiping head is greater than the distance between the two second guide rollers.

11. The stepwise and segmented vehicle screen surface cleaning device according to claim 1 is characterized in that: Each of the wiping groups also includes a sprayer, which includes a spray seat and a spray head arranged on the spray seat and used to spray alcohol onto the wiping head, wherein the spray angle of the spray head can be adjusted synchronously with the change of the surface to be wiped of the vehicle-mounted screen.

12. The multiple and segmented vehicle screen surface cleaning device according to claim 11 is characterized in that: The spray seat is provided with a connection module, wherein the connection module is formed with an arc groove, and the spray head is slidably connected in the arc groove; and / or, there are two spray heads and they are respectively arranged on opposite sides of the wiping head in the width direction of the dust-free cloth.

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