Screen cleaning device and automatic film sticking machine

Abstract

The application discloses a screen surface cleaning device and an automatic film pasting machine, which comprises a rack, a workbench and a liquid spraying assembly, a brush washing assembly and a wiping assembly which are sequentially arranged along the movement direction of the workbench. The workbench is horizontally slidably arranged on the rack, and the upper surface of the workbench is provided with a positioning groove for stably fixing a workpiece. The liquid spraying assembly sprays cleaning agent to the workpiece, the cleaning brush of the brush washing assembly brushes the workpiece in a direction which is not parallel to the movement direction of the workbench, and the wiping belt of the wiping assembly moves towards the brush washing assembly to wipe the residual stains on the surface of the workpiece. The application adopts an integrated design, realizes the transfer of the workpiece through the horizontal sliding of the workbench, does not need a complex transmission mechanism, greatly compresses the volume of the whole machine, and reserves a mobile phone film storage space in the automatic film pasting machine. The function assemblies are independently installed on the rack, the cleaning and replacement can be quickly completed, the operation efficiency of the automatic film pasting machine is effectively improved, and the demand of the automatic film pasting machine for the miniaturization and easy maintenance of the cleaning device is met.

Description

Technical Field

[0001] This application belongs to the field of surface cleaning technology, and more specifically, relates to a screen cleaning device and an automatic film applicator. Background Technology

[0002] With the widespread use of smartphones, the demand for screen protectors is increasing. To improve user experience and operational efficiency, self-service screen protector application machines have appeared in public places such as shopping malls. These machines typically contain a sealed application compartment; after the user places their phone in, the machine automatically completes the cleaning, alignment, and application of the screen protector.

[0003] Because the size of the automatic screen protector applicator cannot be too large, and it also needs to store screen protectors for various mobile phones, the internal components of the automatic screen protector applicator need to be a screen cleaning device that is relatively small and easy to maintain and clean. Summary of the Invention

[0004] The purpose of this application is to provide a screen cleaning device and an automatic screen protector applicator to solve the technical problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a screen surface cleaning device is provided, characterized in that it includes: a frame; a worktable, which is horizontally slidably disposed on the frame, and the upper surface of the worktable is used to fix the workpiece; a spraying assembly, a brushing assembly, and a wiping assembly are sequentially distributed along the movement direction of the worktable, wherein the spraying assembly is used to spray cleaning agent onto the workpiece, the brushing assembly includes a cleaning brush, the cleaning brush brushes the workpiece in a movement direction not parallel to the worktable, and the wiping assembly includes a wiping belt, the wiping belt moves toward the brushing assembly to wipe the workpiece.

[0006] Optionally, the spray assembly includes an atomizing nozzle positioned higher than the cleaning brush.

[0007] Optionally, the brushing assembly includes a rotating brush motor and a brush-moving component. The output shaft of the rotating brush motor is connected to the cleaning brush. The brush-moving component is connected to the rotating brush motor, causing the rotating brush motor to move in a direction perpendicular to the movement direction of the worktable.

[0008] Optionally, the brush removal component includes a brush removal seat, a brush removal conveyor belt, and a brush removal motor. The brush removal seat is slidably mounted on the frame and is used for mounting the brush removal motor. The brush removal conveyor belt is mounted on the frame, and one side of the belt is connected to the brush removal seat. The clockwise and counterclockwise movements of the brush removal conveyor belt cause the brush removal seat to perform reciprocating linear motion. The brush removal motor is mounted on the frame, and its output shaft is connected to one of the pulleys in the brush removal conveyor belt.

[0009] Optionally, the wiping assembly further includes an unwinding roller, a wiping roller, a take-up roller, and a roll control component. The unwinding roller, the wiping roller, and the take-up roller are all horizontally rotatably mounted on the frame. The two ends of the wiping strip are respectively wound around the unwinding roller and the take-up roller. The portion of the wiping strip located between the unwinding roller and the take-up roller is wound around the side of the wiping roller away from the unwinding roller and the take-up roller. The roll control component connects the unwinding roller and the take-up roller and is used to make the wiping strip move in a tensioned state.

[0010] Optionally, the roll control component includes a take-up drive and an unwinding damper. The take-up drive is connected to the take-up roll and provides power for the rotation of the take-up roll. The unwinding damper is connected to the unwind roll and provides a rotational damping force to the unwind roll opposite to the unwinding direction.

[0011] Optionally, the wiping assembly further includes a tension roller for the wiping belt to bend and wind around. Multiple tension rollers are provided, with some tension rollers located between the wiping roller and the take-up roller, and others located between the wiping roller and the unwind roller.

[0012] Optionally, a wiping frame is provided between the wiping roller and the frame, the wiping frame is rotatably mounted on the wiping roller, the wiping frame is slidably mounted on the frame, and a pressure-holding spring is provided between the wiping frame and the frame, the pressure-holding spring causing the wiping roller to press against the workpiece with a predetermined pressure through the wiping frame.

[0013] An automatic screen protector applicator includes the screen surface cleaning device described above.

[0014] The beneficial effects of the screen cleaning device and automatic screen protector applicator provided in this application are as follows: Compared with the prior art, this application eliminates the need for a complex transmission mechanism, significantly reducing the overall size of the machine and reserving storage space for the screen protector inside the applicator. Each functional component is independently installed on the frame, enabling rapid cleaning and replacement, effectively improving the operational efficiency of the self-service screen protector applicator, and meeting the needs of automatic screen protector applicators for miniaturized and easy-to-maintain cleaning devices. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A cross-sectional view of a screen cleaning device and an automatic film applicator provided in an embodiment of this application; Figure 2 A three-dimensional structural diagram of the workbench and frame provided in the embodiments of this application; Figure 3 This is a three-dimensional structural diagram of the scrubbing assembly provided in an embodiment of this application; Figure 4 This is a three-dimensional structural diagram of the wiping assembly provided in an embodiment of this application; Figure 5 This is a three-dimensional structural diagram of the tension roller, wiping frame, and pressure holding spring provided in the embodiments of this application.

[0017] The following are the labeling elements in the figure: 1. Frame; 2. Workbench; 21. Positioning slot; 3. Spraying assembly; 31. Atomizing nozzle; 4. Brushing assembly; 41. Cleaning brush; 42. Rotating brush motor; 43. Brush transfer component; 431. Brush transfer seat; 432. Brush transfer conveyor belt; 433. Brush transfer motor; 5. Wiping assembly; 51. Wiping belt; 52. Unwinding roller; 521. Damping cap; 522. Damping spring; 53. Wiping roller; 54. Rewinding roller; 55. Roller control component; 551. Rewinding drive component; 552. Unwinding damping component; 56. Tensioning roller; 6. Wiping frame; 7. Pressure holding spring. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] The present application will now describe a screen cleaning device and an automatic screen protector applicator provided in the embodiments of this application.

[0023] See Figure 1 The screen surface cleaning device includes a frame 1, a worktable 2, a spraying assembly 3, a brushing assembly 4, and a wiping assembly 5. Specifically, the worktable 2 is horizontally slidably mounted on the frame 1, and the upper surface of the worktable 2 is used to fix the workpiece. The spraying assembly 3, the brushing assembly 4, and the wiping assembly 5 are distributed sequentially along the movement direction of the worktable 2. The spraying assembly 3 is used to spray cleaning agent onto the workpiece. The brushing assembly 4 includes a cleaning brush 41, which brushes the workpiece in a movement direction not parallel to the worktable 2. The wiping assembly 5 includes a wiping belt 51, which wipes the workpiece by moving towards the brushing assembly 4.

[0024] See Figure 2 The frame 1 serves as the mounting base for the entire cleaning device, providing stable support for the various functional components. The workbench 2 slides horizontally on the frame 1 through the cooperation of a slide rail laid horizontally on the frame 1 and a slider at its bottom. The extension direction of the slide rail is the movement direction of the workbench 2. At the same time, the upper surface of the workbench 2 is provided with a positioning groove 21 adapted to the shape of a mobile phone. The mobile phone to be cleaned can be stably fixed in the positioning groove 21, ensuring that the mobile phone will not shift or shake during the cleaning process.

[0025] Along the movement path of the workbench 2, a spraying component 3, a brushing component 4, and a wiping component 5 are sequentially arranged. Each component is fixedly installed on the frame 1 and located above the workbench 2, working together to complete the entire cleaning process. When the workbench 2 carries the mobile phone to a position below the spraying component 3, the spraying component 3 starts to activate, spraying the cleaning agent evenly onto the surface of the mobile phone screen through the nozzle, preparing for the subsequent brushing step.

[0026] Following the spraying component 3 is the scrubbing component 4, which is equipped with a cleaning brush 41. To increase the relative movement between the cleaning brush 41 and the phone surface and improve the cleaning effect, the cleaning brush 41 scrubs the phone in a direction that is not parallel to the movement of the worktable 2. Thus, when the cleaning brush 41 is working, the direction in which the bristles scrub the phone screen surface intersects with the forward movement direction of the worktable 2, achieving a better scrubbing effect.

[0027] The wiping process is the final step in the entire cleaning process. The wiping component 5 is located after the brushing component 4, and the wiping belt 51 moves towards the brushing component 4 to wipe the phone. When the phone, after brushing, moves with the worktable 2 to below the wiping component 5, the moving wiping belt 51 contacts the phone screen surface, wiping away any residual cleaning agent and stains, thus meeting the requirements of the subsequent screen protector application process.

[0028] In summary, this device has the following advantages: First, the spraying component 3, the brushing component 4, and the wiping component 5 are arranged sequentially along the movement direction of the worktable 2. The workpiece is transferred between the components by the horizontal sliding of the worktable 2, eliminating the need for a complex multi-directional transmission mechanism. At the same time, the movement mode of the cleaning brush and the wiping belt 51 can also reduce the distance between the spraying component 3, the brushing component 4, and the wiping component 5, thereby greatly compressing the overall size of the machine. This makes the device compact and space-saving, which can not only meet the various functions of the self-service mobile phone screen protector machine, but also reserve enough space for storing various mobile phone screen protectors inside the screen protector machine.

[0029] Secondly, the spraying component 3, brushing component 4, and wiping component 5 of this device all adopt an independent and simple modular design. Each component is fixed on the frame 1, making disassembly and installation convenient. For example, the wiping belt 51 can be quickly replaced by changing the belt reel, and the cleaning brush 41 can also be disassembled for cleaning or replacement without disassembling the entire cleaning device. This greatly simplifies the maintenance process, makes it easier for staff to quickly complete the maintenance of the cleaning components, and effectively improves the operating efficiency of the self-service film applicator.

[0030] Based on the screen surface cleaning device described above, the nozzle of the spray component 3 has a great influence on the spraying effect. If the liquid outlet method is not reasonable enough, it may result in the cleaning agent being sprayed over too large an area and wasted, or the spraying being too concentrated and unable to evenly cover the screen.

[0031] Based on the above issues, the spraying assembly 3 includes an atomizing nozzle 31, which can atomize the cleaning agent into fine droplets, so that the cleaning agent can cover the workpiece surface more evenly, avoiding the problems of local liquid accumulation or uneven spraying that may occur with direct nozzles, and ensuring that the subsequent brushing assembly 4 can use the cleaning agent to remove stains more efficiently.

[0032] Meanwhile, the atomizing nozzle 31 is positioned higher than the cleaning brush 41. This expands the spray coverage of the atomizing nozzle 31, allowing it to accommodate different sized mobile phone screens without increasing the number of nozzles, thus reducing spraying omissions caused by screen size differences. Furthermore, the higher installation position prevents structural interference between the atomizing nozzle 31 and the cleaning brush 41 during operation. This is especially important when the worktable 2 continuously moves the mobile phone past various components, ensuring that the spraying and brushing actions do not interfere with each other, further enhancing the overall compactness and operational stability of the device.

[0033] See Figure 3 To enhance cleaning capabilities by enriching the movement modes of the cleaning brush 41, the brushing assembly 4 includes a rotating brush motor 42 and a brush-moving component 43. The output shaft of the rotating brush motor 42 is directly connected to the cleaning brush 41, providing rotational power to the cleaning brush 41 so that it can continuously rotate and perform brushing actions on the screen surface. The brush-moving component 43 is connected to the rotating brush motor 42, driving the rotating brush motor 42 to move in a direction perpendicular to the movement direction of the worktable 2, allowing the cleaning brush 41 to clean both by rotation and by movement.

[0034] In addition, during long-term use, the brush retraction component 43 can drive the cleaning brush 41 to move back and forth within a certain range, making the wear of the bristles more uniform, extending the service life of the cleaning brush 41, and reducing the maintenance frequency.

[0035] The aforementioned brushing assembly 4 achieves the movement and cleaning of the cleaning brush 41 through the brush-moving component 43. More specifically, the brush-moving component 43 includes a brush-moving base 431, a brush-moving conveyor belt 432, and a brush-moving motor 433. The brush-moving base 431 is slidably mounted on the frame 1, and its sliding direction is perpendicular to the movement direction of the worktable 2. The brush-moving motor 42 is fixedly mounted on the brush-moving base 431, so that the movement of the brush-moving base 431 directly drives the brush-moving motor 42 and the cleaning brush 41 to move synchronously. The brush-moving conveyor belt 432 is mounted on the frame 1, and one side of the belt is fixedly connected to the brush-moving base 431. When the brush-moving conveyor belt 432 moves clockwise, the belt can drive the brush-moving base 431 to slide in one direction; when the brush-moving conveyor belt 432 moves counterclockwise, the belt drives the brush-moving base 431 to slide in the opposite direction, thereby achieving the reciprocating linear motion of the brush-moving base 431.

[0036] The brush transfer motor 433 is fixedly mounted on the frame 1. The output shaft of the brush transfer motor 433 is connected to one of the pulleys in the brush transfer conveyor belt 432, providing power for the rotation of the brush transfer conveyor belt 432. By controlling the forward and reverse rotation of the brush transfer motor 433, the movement direction of the brush transfer conveyor belt 432 can be controlled, thereby changing the position of the cleaning brush 41.

[0037] The smooth movement of the cleaning brush 41 is achieved by using a conveyor belt drive. At the same time, the reliability of the conveyor belt drive reduces the probability of equipment failure and further improves the operational stability of the device.

[0038] As mentioned above, the wiping component 5 includes a wiping strip 51. The wiping strip 51 needs to wipe the screen surface in a clean state. In order to maintain a clean state, two methods can be adopted. First, the wiping strip 51 is cleaned after wiping. Second, after wiping, the wiping strip 51 is replaced with a new clean wiping strip 51. Considering the simple structure of the device, the second method is preferred.

[0039] See Figure 4 The wiping assembly 5 specifically includes an unwinding roller 52, a wiping roller 53, a take-up roller 54, and a roller control component 55. The unwinding roller 52, wiping roller 53, and take-up roller 54 are all horizontally rotatably mounted on the frame 1, and their axes are perpendicular to the movement direction of the worktable 2. The two ends of the wiping strip 51 are wound around the unwinding roller 52 and the take-up roller 54, respectively. The portion of the wiping strip 51 located between the unwinding roller 52 and the take-up roller 54 is wound around the side of the wiping roller 53 away from the unwinding roller 52 and the take-up roller 54. This allows the wiping roller 53 to support the wiping strip 51 away from the unwinding roller 52 and the take-up roller 54, forming a wiping contact surface opposite to the surface of the worktable 2. When the worktable 2 carries a mobile phone, the portion of the wiping strip 51 located at the wiping roller 53 can make close contact with the screen surface, ensuring uniform wiping pressure. The roller control component 55 is connected to the unwinding roller 52 and the take-up roller 54 respectively. By controlling the winding speed of the take-up roller 54, the wiping belt 51 is kept taut during the movement.

[0040] In summary, when there is no wiping belt 51 on the unwinding roller 52, the wiping belt 51 needs to be replaced so that a new, clean wiping belt 51 can be reinstalled into the equipment.

[0041] If the rotation of the unwinding roller 52 and the take-up roller 54 is directly driven by the power source, that is, there are two power sources to drive the rotation of the unwinding roller 52 and the take-up roller 54 respectively, it may be difficult to balance the movement rhythm of the unwinding roller 52 and the take-up roller 54. When the take-up speed is slower than the unwinding speed, the wiping belt 51 will become loose. When the take-up speed is greater than the unwinding speed, the wiping belt 51 will be subjected to excessive tension and break. Especially when the device is started, stopped or the speed is changed, the motion inertia of the unwinding roller 52 may also disrupt the tension balance of the wiping belt 51 and affect the wiping effect.

[0042] To address the shortcomings of the aforementioned dual-power source configuration, this application employs the following arrangement: specifically, the roll control component 55 includes a take-up drive component 551 and an unwinding damping component 552. The take-up drive component 551 is connected to the take-up roller 54 and serves as the power source for the take-up action. The take-up drive component 551 utilizes a motor coupled with belt drive, causing the take-up roller 54 to actively rotate and retract the wiped wiping belt 51. The output power and rotational speed of the take-up drive component 551 can be adjusted according to the movement requirements of the wiping belt 51, ensuring that the take-up speed matches the rhythm of the wiping process.

[0043] The unwinding damper 552 is connected to the unwinding roller 52. The unwinding damper 552 provides a stable rotational damping force to the unwinding roller 52. The direction of the rotational damping force is opposite to the unwinding direction. Therefore, when the winding drive 551 is started, the wiping belt 51 can always be kept in a taut state. When the winding drive 551 stops, the unwinding roller 52 can be stopped quickly to continue to keep the wiping belt 51 taut. In this embodiment, a rotational damping force is applied to the unwinding roller 52 by applying friction. Specifically, a damping cap 521 and a damping spring 522 are provided at the end of the unwinding roller 52. The damping cap 521 is fixedly sleeved on the end of the unwinding roller 52, and the damping spring 522 is sleeved on the unwinding roller 52. One end of the damping spring 522 abuts against the damping cap 521, and the other end abuts against the frame 1. The damping spring 522 is in a compressed state, and the frictional force converted from the pressure of the damping spring 522 on the frame 1 is used as the aforementioned rotational damping force.

[0044] When the take-up drive 551 drives the take-up roller 54 to retract the wiping belt 51, the wiping belt 51 will pull the unwind roller 52 to rotate passively. At this time, the unwind damping component 552 will suppress the rotation speed of the unwind roller 52 through damping force, preventing the unwind roller 52 from rotating too fast due to its own inertia and causing the wiping belt 51 to slack. When the take-up action stops, the damping effect of the unwind damping component 552 can immediately suppress the inertial rotation of the unwind roller 52, preventing the wiping belt 51 from slack at the moment the take-up stops, thereby ensuring that the wiping belt 51 is always in a taut state to meet the cleaning requirements.

[0045] To further ensure the tension of the wiping belt 51, the wiping assembly 5 also includes a tension roller 56. The axial direction of the tension roller 56 is consistent with that of the unwinding roller 52, the wiping roller 53, and the take-up roller 54. All of them are horizontally rotatably mounted on the frame 1. The tension roller 56 is used for bending and winding the wiping belt 51.

[0046] Multiple tension rollers 56 are provided, with some located between the wiping roller 53 and the take-up roller 54, and others between the wiping roller 53 and the unwind roller 52. The tension rollers 56 located between the wiping roller 53 and the unwind roller 52 guide and bend the wiping belt 51 released from the unwind roller 52, allowing the wiping belt 51 to wrap around the wiping roller 53 at a more reasonable angle. The tension rollers 56 located between the wiping roller 53 and the take-up roller 54 provide secondary guidance to the wiping belt 51 after it leaves the wiping roller 53, ensuring that the wiping belt 51 enters the take-up roller 54 in a smooth manner, reducing tensile stress during winding. Simultaneously, the distribution of multiple tension rollers 56 disperses the tension force of the wiping belt 51, allowing the tension force applied by the roller control component 55 to be more evenly transmitted to the entire contact section of the wiping belt 51, avoiding wear or breakage caused by excessive localized stress.

[0047] See Figure 5 Considering that different mobile phone screens may have slight thickness differences, and the wiping roller 53 needs to contact the screen with a certain pressure to achieve the wiping work, it is necessary to enable the wiping roller 53 to contact the screen with a certain pressure at different heights to ensure a stable wiping effect under different working conditions.

[0048] Specifically, a wiping frame 6 is provided between the wiping roller 53 and the frame 1. The wiping frame 6 is vertically slidable, and the wiping roller 53 is rotatably mounted on the wiping frame 6 via bearings, allowing the wiping roller 53 to move synchronously with the wiping frame 6. A pressure-holding spring 7 is also provided between the wiping frame 6 and the frame 1. One end of the pressure-holding spring 7 is fixedly connected to the frame 1, and the other end abuts against the wiping frame 6. In summary, the wiping roller 53 can adapt to this undulation by moving up and down, and at the same time, with the help of the elastic force of the pressure-holding spring 7, the wiping roller 53 can still apply a certain pressure to the workpiece. Thus, the wiping roller 53 can adapt to workpieces of different thicknesses and also adapt to the ups and downs that occur during the movement of the worktable 2, thereby achieving a more comprehensive and safer cleaning operation.

[0049] This application also provides an automatic screen protector applicator. The automatic screen protector applicator includes the screen surface cleaning device described above. The specific structure of the screen surface cleaning device is as described in the foregoing embodiments and will not be repeated here.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A screen cleaning device, characterized in that, include: Rack (1); The worktable (2) is horizontally slidably mounted on the frame (1), and the upper surface of the worktable (2) is used to fix the workpiece; The spraying assembly (3), the brushing assembly (4), and the wiping assembly (5) are arranged sequentially along the movement direction of the worktable (2). The spraying assembly (3) is used to spray cleaning agent onto the workpiece. The brushing assembly (4) includes a cleaning brush (41), which brushes the workpiece in a movement direction that is not parallel to the worktable (2). The wiping assembly (5) includes a wiping strip (51), which wipes the workpiece by moving toward the brushing assembly (4).

2. The screen cleaning device as described in claim 1, characterized in that: The spray assembly (3) includes an atomizing nozzle (31) which is positioned higher than the cleaning brush (41).

3. The screen cleaning device as described in claim 1, characterized in that: The brushing assembly (4) includes a rotating brush motor (42) and a brush moving component (43). The output shaft of the rotating brush motor (42) is connected to the cleaning brush (41). The brush moving component (43) is connected to the rotating brush motor (42), so that the rotating brush motor (42) moves in a direction perpendicular to the movement direction of the worktable (2).

4. The screen cleaning device as described in claim 3, characterized in that: The brush transfer component (43) includes a brush transfer seat (431), a brush transfer conveyor belt (432), and a brush transfer motor (433). The brush transfer seat (431) is slidably mounted on the frame (1) and is used for mounting the brush transfer motor (42). The brush transfer conveyor belt (432) is mounted on the frame (1), and one side of the belt in the brush transfer conveyor belt (432) is connected to the brush transfer seat (431). The brush transfer seat (431) makes reciprocating linear motion through the clockwise and counterclockwise movement of the brush transfer conveyor belt (432). The brush transfer motor (433) is mounted on the frame (1), and the output shaft of the brush transfer motor (433) is connected to one of the pulleys in the brush transfer conveyor belt (432).

5. The screen cleaning device as described in claim 1, characterized in that: The wiping assembly (5) further includes an unwinding roller (52), a wiping roller (53), a take-up roller (54), and a roll control component (55). The unwinding roller (52), the wiping roller (53), and the take-up roller (54) are all horizontally rotatably mounted on the frame (1). The two ends of the wiping strip (51) are respectively wound around the unwinding roller (52) and the take-up roller (54). The portion of the wiping strip (51) located between the unwinding roller (52) and the take-up roller (54) is wound around the side of the wiping roller (53) away from the unwinding roller (52) and the take-up roller (54). The roll control component (55) connects the unwinding roller (52) and the take-up roller (54) to make the wiping strip (51) move in a tensioned state.

6. The screen cleaning device as described in claim 5, characterized in that: The roll control component (55) includes a take-up drive component (551) and an unwinding damper component (552). The take-up drive component (551) is connected to the take-up roll (54) and provides the power for the rotation of the take-up roll (54). The unwinding damper component (552) is connected to the unwind roll (52) and provides the unwind roll (52) with a rotational damping force opposite to the unwinding direction.

7. The screen cleaning device as described in claim 6, characterized in that: The wiping assembly (5) also includes a tension roller (56), which is used for the wiping belt (51) to be bent and wound. There are multiple tension rollers (56), some of which are located between the wiping roller (53) and the take-up roller (54), and other tension rollers (56) are located between the wiping roller (53) and the unwinding roller (52).

8. The screen cleaning device as described in claim 5, characterized in that: A wiping frame (6) is provided between the wiping roller (53) and the frame (1). The wiping frame (6) is rotatably mounted on the wiping roller (53) and slidably mounted on the frame (1). A pressure-holding spring (7) is provided between the wiping frame (6) and the frame (1). The pressure-holding spring (7) causes the wiping roller (53) to press against the workpiece with a predetermined pressure through the wiping frame (6).

9. An automatic film applicator, characterized in that: Includes the screen cleaning device according to any one of claims 1-8.

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