An automatic film laminating device for an elevator call panel

Abstract

The present invention provides an automatic film laminating device for an elevator call panel, which includes a slide rail, a base, a sliding drive mechanism and a film removing and laminating unit; the slide rail is used to be fixed on one side of the elevator call panel; the base is slidably arranged on the slide rail and is drivingly connected to the sliding drive mechanism, so as to perform reciprocating motion between the opposite two side edges of the elevator call panel driven by the sliding drive mechanism; the film removing and laminating unit includes a film laminating roller and a recovery roller which are axially arranged on the base and are arranged parallel to each other at intervals; a new film is wound on the surface of the film laminating roller; the recovery roller is used to recover the old film laid on the surface of the elevator call panel, and the recovery direction of the old film is opposite to the output direction of the new film. It realizes automatic film laminating of the elevator call panel and recovery of the old film that needs to be replaced, and has important significance for improving the health and safety of public facilities and blocking the spread of diseases during the period of epidemic prevention and control.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and particularly to an automatic film laminating device for an elevator call panel. Background Art

[0002] A car elevator includes a car for carrying and accommodating people or goods. The car moves up and down in an elevator shaft to transport the carried people or goods to different floors. To enable passengers to take the elevator, elevator call panels for calling the elevator are provided near the elevator doors in each car and on each floor. Control buttons are usually provided on the elevator call panel so that passengers can call the elevator or control the elevator to run to the required floor through the control buttons.

[0003] Since the elevator call panels in public places are public facilities, it is easy for people to leave the bacteria or viruses on their hands on the call panel when touching it, and it is also easy to come into contact with the bacteria or viruses remaining on the call panel. Therefore, it is easy to become a medium for the spread of bacteria or viruses. During the period of an epidemic, especially when bacteria or viruses can cause diseases through contact transmission, it is of great significance to strictly implement the hygiene of elevator call panels in public places for preventing and controlling the spread of diseases.

[0004] Currently, the cleaning and disinfection measures for elevator call panels mainly include manually spraying disinfectant or covering the call panel with an isolation film. However, manual operation requires a large amount of manpower, and the operators are at risk of being infected by bacteria or viruses. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an automatic film laminating device for an elevator call panel, which can automatically cover a new film on the elevator call panel and automatically recycle the old film.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: an automatic film laminating device for an elevator call panel, including a slide rail, a base, a sliding driving mechanism, and a film removing and laminating unit; the slide rail is used to be fixed on one side of the elevator call panel; the base is slidably arranged on the slide rail and is drivingly connected to the sliding driving mechanism, so as to reciprocate between the opposite two side edges of the elevator call panel driven by the sliding driving mechanism; the film removing and laminating unit includes a film laminating roller and a recycling roller which are axially arranged on the base and are arranged in parallel at intervals; a new film is wound on the surface of the film laminating roller; the recycling roller is used to recycle the old film laid on the surface of the elevator call panel, and the recycling direction of the old film is opposite to the output direction of the new film.

[0007] In this solution, through the automatic film laminating device for elevator call panels with the above structure, after it is installed on one side of the elevator call panel, the elevator call panel can be automatically covered with a new film and the old film can be recycled by the sliding drive mechanism, thus replacing manual operation, which is beneficial to preventing the spread of germs caused by excessive germs remaining on the elevator call panel and improving the hygienic safety of the call panel in public places. Through the parallel and spaced arrangement of the film laminating roller and the recycling roller, and the setting that the recycling direction of the old film is opposite to the output direction of the new film, during the process of the recycling roller recycling the old film, the film laminating roller simultaneously moves to the initial position for covering the new film; during the process of the film laminating roller covering the new film, the recycling roller simultaneously moves to the initial position for recycling the old film, realizing the efficient cooperation between covering the new film and recycling the film, not only improving the efficiency of replacing the film, but also avoiding redundant movement of the film laminating unit, which is beneficial to saving energy consumption.

[0008] Optionally, the automatic film laminating device for elevator call panels further includes a timer and a controller; the controller is electrically connected to the timer and the sliding drive mechanism respectively; when the controller determines that the film replacement time has arrived according to the timing signal sent by the timer, it controls the sliding drive mechanism to drive the base to run successively along the recycling direction of the old film and the output direction of the new film, so as to realize the recycling of the old film and the covering of the new film. Through the settings of the timer and the controller, the device can recycle the old film on the elevator call panel and cover the new film at the set time, that is, realize the regular replacement of the film on the elevator call panel, which is beneficial to maintaining the cleanliness of the elevator call panel and ensuring the hygienic safety of the elevator call panel.

[0009] Optionally, the automatic film laminating device for elevator call panels further includes an infrared sensor; the infrared sensor is used to detect whether there is a human body in the space area where the elevator call panel is located and send a human body detection signal to the controller; when the controller determines that the film replacement time has arrived according to the timing signal sent by the timer and determines that there is no human body in the space area according to the human body detection signal, it controls the sliding drive mechanism to drive the base to run successively along the recycling direction of the old film and the output direction of the new film. Through this setting, it can be realized that both the film removal operation and the film laminating operation of the automatic film laminating device for elevator call panels are performed when the elevator is idle, that is, when no one is using it. This can not only avoid the inconvenience caused to the user due to the film removal and film laminating operations when someone is using the elevator, but also avoid the potential safety hazards to the elevator user caused by the film removal and film laminating operations.

[0010] Optionally, the film laminating unit further includes a cutting blade and a cutting driving mechanism disposed on the base; the cutting blade is parallel to the film laminating roller and is located outside the new film output end of the film laminating roller; the cutting driving mechanism is drivingly connected to the cutting blade to drive the cutting blade to move towards or away from the plane where the elevator call panel is located. By providing the cutting blade and the cutting driving mechanism, there is no need to use pre-cut new film, nor to select new films with different cutting lengths according to different elevator call panels. The cutting blade can cut the new film according to the required length, which is beneficial to expanding the use range of the device and improving its practicability.

[0011] Optionally, the base includes a fixed base frame and a movable base frame; the fixed base frame is drivingly connected to the sliding driving mechanism; the movable base frame is mounted on the fixed base frame through a plurality of telescopic structures; the film laminating roller shaft and the recovery roller shaft are disposed on the movable base frame; the telescopic mechanism is used to press the movable base frame to make the new film on the film laminating roller or the recovery roller fit the plane where the elevator call panel is located. By disposing the film laminating roller shaft and the recovery roller shaft on the movable base frame, and the telescopic mechanism fitting the new film and the recovery roller to the plane where the elevator call panel is located, it is beneficial for the new film to closely cover the elevator call panel, preventing the new film from falling off due to unstable fitting; it is also beneficial for the recovery roller to closely fit the old film and wind it from the surface of the elevator call panel into the recovery roller, realizing the effectiveness of the film removing and film laminating operations.

[0012] Optionally, the telescopic mechanism includes two limiting shafts and a spring; the two limiting shafts are arranged facing each other and at intervals, and are respectively disposed on the fixed base frame and the movable base frame; the spring is sleeved outside the two limiting shafts, and the two ends of the spring are respectively connected to the two limiting shafts, or the fixed base frame and the movable base frame; the distance between the fixed base frame and the movable base frame changes with the change of the remaining amount of the new film on the film laminating roller or the recovery amount of the old film on the recovery roller. By providing the limiting shafts, it is beneficial to prevent the fixed base frame and the movable base frame from separating from each other; the spring makes the movable base frame always have a pulling force towards the fixed base frame, realizing that the film laminating roller and the recovery roller always closely adhere to the plane where the elevator call panel is located.

[0013] Optionally, the sliding driving mechanism includes a sliding driving source and two roller groups drivingly connected to the sliding driving source; the two roller groups are parallel and axially connected at intervals on the same side of the fixed base frame; the slide rail is clamped between the two roller groups. By this setting, it is beneficial to simplify the structure of the sliding driving mechanism, and by clamping the slide rail between the two roller groups, that is, the two roller groups clamp the slide rail, it is beneficial to improve the stability of the sliding driving mechanism to drive the fixed base frame to run along the slide rail.

[0014] Optionally, each roller group includes a driving wheel and a driven wheel; the driving wheel is drivingly connected to a sliding driving source, and the driven wheel is drivingly connected to the driving wheel through a linkage belt; and / or, the cross-sectional structure of the slide rail is T-shaped. Through this setting, synchronous rolling of the rollers in the roller group is achieved, and at the same time, the base is driven to move along the slide rail; the structural setting of the slide rail is beneficial to increasing the connection stability of the slide rail.

[0015] Optionally, a protective sleeve is provided on the side of the film covering roller facing away from the plane where the elevator call panel is located. Through the setting of the protective sleeve, the new film not covered on the film covering roller is prevented from being contaminated, which is beneficial to improving the cleanliness of the new film and further improving the hygienic safety of the elevator call panel.

[0016] Optionally, the elevator call panel automatic film covering device further includes a monitor, a controller and an alarm; the monitor is used to obtain the monitoring image of the area except the film covering unit and send it to the controller or the elevator monitoring center; the controller or the elevator monitoring center determines whether there is a risk of damage to the film covering unit according to the monitoring image, and determines whether to control the alarm to give an alarm according to the determination result. Through this setting, it is beneficial to prevent the film covering unit from being damaged by external forces, extend the service life of the film covering unit, and is beneficial to avoiding theft of the new film. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the elevator call panel automatic film covering device of the present invention;

[0018] Figure 2 is a top view of the elevator call panel automatic film covering device of the present invention;

[0019] Figure 3 is a left view of the elevator call panel automatic film covering device of the present invention;

[0020] In the figure: 1 - base; 11 - fixed base frame; 12 - movable base frame; 13 - telescopic mechanism;

[0021] 2 - sliding driving mechanism; 21 - sliding driving source; 22 - roller group; 221 - driving wheel; 222 - driven wheel; 223 - linkage belt;

[0022] 3 - film covering and removing unit; 31 - film covering roller; 32 - recovery roller; 33 - cutting edge; 34 - cutting driving mechanism;

[0023] 4 - infrared sensor; 5 - slide rail. Detailed Embodiments

[0024] The embodiments of the present invention will be described in detail below. The following is by reference to the attached Figures 1 - 3The described embodiments are exemplary and are intended to explain the present invention. Additionally, in the description of the present invention, the orientation or positional relationships indicated by terms such as "top", "bottom", "inner", "outer", "horizontal", "vertical", etc. are based on the orientation or positional relationships shown in the drawings, and are only for convenience of description, and thus should not be construed as limiting the present invention.

[0025] Refer to Figures 1 - 2 , an automatic film laminating device for an elevator call panel, comprising a slide rail 5, a base 1, a sliding drive mechanism 2, and a film removing and laminating unit 3; the slide rail 5 is used to be fixed on one side of the elevator call panel; the base 1 is slidably arranged on the slide rail 5 and is drivingly connected to the sliding drive mechanism 2, so as to perform reciprocating motion between the opposite two side edges of the elevator call panel driven by the sliding drive mechanism 2; the film removing and laminating unit 3 includes a film laminating roller 31 and a recovery roller 32 which are axially arranged on the base 1 and are parallel and spaced apart from each other; a new film is wound on the surface of the film laminating roller 31; the recovery roller 32 is used to recover the old film laid on the surface of the elevator call panel, and the recovery direction of the old film is opposite to the output direction of the new film.

[0026] The working process of the automatic film laminating device for the elevator call panel is described as follows:

[0027] First, install the entire automatic film laminating device for the elevator call panel on the plane where the elevator call panel is located. Among them, install the slide rail 5 on one side edge of the call panel (for convenience of description, this side edge will be hereinafter referred to as the fixed side). The automatic film laminating device for the elevator call panel moves along the fixed side, and the other two sides of the call panel that it can reach on the slide rail 5 are respectively referred to as the first side edge and the second side edge.

[0028] Process of covering the new film: The sliding drive mechanism 2 drives the base 1 to move from the first side edge towards the second side edge. During this process, the film laminating roller 31 rolls closely against the elevator call panel, and the new film is output as the film laminating roller 31 rolls and closely adheres to the surface of the elevator call panel until the device moves to the second side edge, thereby completing the film laminating operation of the elevator call panel.

[0029] Process of removing the old film: It should be noted that the new film used here is composed of film units pre-cut to a preset size. When the film on the surface of the elevator call panel has been covered for a certain period of time or the residual germ substances on the surface reach a certain degree, the new film becomes the old film. From the above process of covering the new film, it can be seen that after the film laminating operation is completed, the base 1 stays at the second side edge. When it is necessary to remove the old film, the sliding drive mechanism 2 drives the base 1 to move from the second side edge towards the first side edge. During this process, the recovery roller 32 rolls closely against the surface of the elevator call panel, and the old film covering the surface of the call panel closely adheres to the surface of the recovery roller 32 and is wound onto the recovery roller 32 as the recovery roller 32 rolls until the recovery roller 32 moves to the first side edge and completely winds the old film onto the recovery roller 32, thereby completing the operation of removing the old film from the elevator call panel.

[0030] After removing the old film, cover the new film again to replace the film on the surface of the elevator call panel. The automatic film covering device for the elevator call panel can automatically cover the new film and remove the old film on the surface of the elevator call panel, which is beneficial to reducing the risk of residual and spreading germs on the elevator call panel in public places, replacing manual operation and avoiding the risk of manual operation being infected with germs, preventing the spread of germs caused by excessive germs remaining on the elevator call panel, and improving the hygienic safety of the call panel in public places. Moreover, the movement directions of covering the new film and removing the old film are opposite, that is, the process of covering the new film is effectively connected with the process of removing the old film, without redundant movement, which not only improves the efficiency but also reduces the energy consumption of the device.

[0031] In an embodiment, in order to replace the film on the elevator call panel regularly, the automatic film covering device for the elevator call panel further includes a timer and a controller; the controller is electrically connected to the timer and the sliding drive mechanism 2 respectively; when the controller determines that the film replacement time has arrived according to the timing signal sent by the timer, it controls the sliding drive mechanism 2 to drive the base 1 to run successively along the recovery direction of the old film and the output direction of the new film, so as to realize the recovery of the old film and the covering of the new film. The operator pre-sets the interval time for film replacement in advance. When the preset time is reached, the timer sends a signal to the controller; the controller converts the received instruction into a drive control instruction for controlling the sliding drive mechanism 2 to control the base 1 to run successively along the recovery direction of the old film and the output direction of the new film, without manual timing operation or remote control device, which is convenient and practical.

[0032] Based on the embodiment provided with a timer and a controller, in an embodiment, the automatic film covering device for the elevator call panel further includes an infrared sensor 4; the infrared sensor 4 is used to detect whether there is a human body in the space area where the elevator call panel is located and send a human body detection signal to the controller; when the controller determines that the film replacement time has arrived according to the timing signal sent by the timer and determines that there is no human body in the space area according to the human body detection signal, it controls the sliding drive mechanism 2 to drive the base 1 to run successively along the recovery direction of the old film and the output direction of the new film. When the timer detects that the time for replacing the film has arrived and the infrared sensor 4 senses that no passenger is operating the elevator call panel, the controller outputs a signal to start the film replacement operation, ensuring that the elevator is in an idle state without being used, preventing passengers from touching the call panel and affecting the film replacement, or causing personal injury to passengers when the device replaces the film.

[0033] In one embodiment, the film covering unit 3 further includes a cutting blade 33 and a cutting drive mechanism 34 disposed on the base 1; the cutting blade 33 is parallel to the film covering roller 31 and is located outside the new film output end of the film covering roller 31; the cutting drive mechanism 34 is drivingly connected to the cutting blade 33 to drive the cutting blade 33 to move towards or away from the plane where the elevator call panel is located. Based on this, in this embodiment, there is no need to use a pre-cut film unit on the film covering roller 31. During the process of covering the new film, the cutting blade 33 always closely adheres to the new film and the plane where the elevator call panel is located; when the operation of removing the old film is required, the cutting drive mechanism 34 drives the cutting blade 33 to move towards the plane where the call panel is located to cut the covered film, and then moves away from the plane where the call panel is located after cutting. The cutting blade 33 can cut the new film according to the required length, without using a pre-cut new film, nor selecting new films with different cutting lengths according to different elevator call panels, which is beneficial to expanding the usage range of the device and improving its practicability.

[0034] In one embodiment, the cutting blade 33 is located between the recovery roller 32 and the film covering roller 31, and the side of the cutting edge of the cutting blade 33 close to the recovery roller 32 is perpendicular to the plane where the fixed base frame 11 is located; the side of the cutting edge of the cutting blade 33 close to the film covering roller 31 is inclined towards the film covering roller 31, as Figure 3 shown. Based on this, when the cutting drive mechanism 34 drives the cutting blade 33 to cut the new film towards the plane where the call panel is located and lift it, the old film covering the call panel is separated from the cutting blade 33, while the new film on the film covering roller 31 remains on the cutting blade 33. When the operation of covering the new film needs to be performed, the cutting blade 33 closely adheres to the plane where the call panel is located again, and closely adheres the new film to the surface of the call panel.

[0035] In one embodiment, the cutting drive mechanism 34 is a linear motor.

[0036] In one embodiment, in order to make the new film fit better, the base 1 includes a fixed base frame 11 and a movable base frame 12; the fixed base frame 11 is drivingly connected to the sliding drive mechanism 2; the movable base frame 12 is installed on the fixed base frame 11 through a plurality of telescopic structures; the film covering roller 31 shaft and the recovery roller 32 shaft are disposed on the movable base frame 12; the telescopic mechanism 13 is used to press the movable base frame 12 to make the new film on the film covering roller 31 or the recovery roller 32 fit the plane where the elevator call panel is located. The film covering roller 31 always closely adheres to the elevator call panel during the process of covering the new film, which is beneficial to closely covering the new film on the elevator call panel and preventing the new film from falling off due to unstable fitting. In addition, during the process of recovering the old film, the surface of the recovery roller 32 always closely adheres to the elevator call panel, which is beneficial to the recovery roller 32 effectively winding the old film around the periphery of the recovery roller 32 and improving the effectiveness of the film removal and film covering operations.

[0037] In one embodiment, the telescopic mechanism 13 can be a telescopic cylinder or an oil cylinder.

[0038] In another embodiment, in order to reduce the energy loss caused by using a telescopic air cylinder or oil cylinder as the telescopic mechanism 13 and simplify the structure of the telescopic mechanism 13, a telescopic mechanism 13 with other structures can be adopted, that is, the telescopic mechanism 13 includes two limit shafts and a spring; the two limit shafts are arranged facing each other and at intervals, and are respectively arranged on the fixed base frame 11 and the movable base frame 12; the spring is sleeved around the two limit shafts, and the two ends of the spring are respectively connected to the two limit shafts, or the fixed base frame 11 and the movable base frame 12; the distance between the fixed base frame 11 and the movable base frame 12 changes with the change of the remaining amount of the new film on the film covering roller 31 or the recycled amount of the old film on the film recycling roller 32. When the remaining amount of the new film on the film covering roller 31 decreases with the use of the new film and the diameter of the film covering roller 31 becomes smaller, the spring on the side of the fixed base frame 11 close to the film covering roller 31 shortens and tightens, and the movable base frame 12 drives the film covering roller 31 to press against the call panel under the limiting action of the limit shaft. When the amount of the old film wound on the film recycling roller 32 increases and the diameter of the film recycling roller 32 becomes larger, the spring on the side of the fixed base frame 11 close to the film recycling roller 32 elongates with the increase of the diameter of the film recycling roller 32, and the movable base frame 12 moves away from the fixed base frame 11 under the limiting action of the limit shaft, and the surface of the film recycling roller 32 always presses against the elevator call panel.

[0039] In one embodiment, the movable base frame 12 is a U-shaped frame with adjacent sides perpendicular to each other, and its opposite two sides are parallel to the film covering roller 31 and the film recycling roller 32. Based on this, the telescopic mechanism 13 is respectively arranged on the opposite two sides. The other side is fixedly installed with a film covering roller shaft and a film recycling roller 32 shaft.

[0040] In one embodiment, the sliding driving mechanism 2 includes a sliding driving source 21 and two roller groups 22 drivingly connected to the sliding driving source 21; the two roller groups 22 are parallel and axially connected at intervals on the same side of the fixed base frame 11; the slide rail 5 is clamped between the two roller groups 22. That is, the fixed base 1 is provided with a groove matching the slide rail 5, the roller groups 22 are respectively arranged on both sides of the groove, and the rollers in the roller groups 22 are all axially connected to the fixed base 1. The slide rail 5 is clamped between the groove of the fixed base 1 and the two roller groups 22, and the sliding driving source 21 drives the roller groups 22 to roll along the slide rail 5 and drives the fixed base frame 11 to move along the slide rail 5, which is beneficial to improving the stability of the sliding driving mechanism 2 driving the fixed base frame 11 to run along the slide rail 5.

[0041] In one embodiment, the cross-sectional structure of the slide rail 5 is T-shaped, and the T-shaped structure of the slide rail 5 is beneficial to increasing the connection stability of the slide rail 5.

[0042] In one embodiment, each roller set 22 includes a driving wheel 221 and a driven wheel 222; the driving wheel 221 is drivingly connected to the sliding driving source 21, and the driven wheel 222 is drivingly connected to the driving wheel 221 through a linkage belt 223. The sliding driving source 21 drives the driving wheel 221 to rotate and roll along the slide rail 5. The driving wheel 221 drives its driven wheel 222 to rotate through the linkage belt 223 and roll along the slide rail 5 synchronously with the driving wheel 221, so as to realize that each roller drives the base 1 to move along the slide rail 5 synchronously.

[0043] In one embodiment, the sliding driving source 21 is a stepper motor, and each of the two driving wheels 221 is drivingly connected to a stepper motor.

[0044] In one embodiment, in order to maintain the cleanliness of the new film on the film covering roller 31, a protective sleeve is provided outside one side of the film covering roller 31 facing away from the plane where the elevator call panel is located, which is beneficial to preventing the uncovered new film on the film covering roller 31 from being contaminated and further improving the hygienic safety of the elevator call panel.

[0045] In one embodiment, in order to remotely monitor the device, the automatic film covering device for the elevator call panel further includes a monitor, a controller and an alarm; the monitor is used to obtain the monitoring image of the area except the area where the film covering unit 3 is located and send it to the controller or the elevator monitoring center; the controller or the elevator monitoring center determines whether there is a risk of damage to the film covering unit 3 according to the monitoring image, and determines whether to control the alarm to give an alarm according to the determination result. Thereby, it is beneficial to prevent the film covering unit 3 from being damaged by external force, extend the service life of the film covering unit 3, and is beneficial to avoiding theft of the new film.

[0046] The various technical features in the above embodiments can be combined arbitrarily as long as there is no conflict or contradiction between the features. However, due to space limitations, they are not described one by one.

[0047] The present invention is not limited to the above embodiments. If various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, and if these modifications and variations fall within the scope of the claims of the present invention and equivalent technical scope, the present invention also intends to include these modifications and changes.

Claims

1. An automatic film laminating device for an elevator call panel, characterized in that, It comprises a slide rail, a base, a slide drive mechanism and a film removal unit; the slide rail is used to be fixed on one side of the elevator call panel; the base is slidably arranged on the slide rail and is connected to the slide drive mechanism so as to be driven by the slide drive mechanism to reciprocate between the two opposite sides of the elevator call panel; the film removal unit comprises a film coating roller and a recovery roller which are arranged parallel to each other and spaced apart and are axially arranged on the base; a new film is wound on the surface of the film coating roller; the recovery roller is used to recover the old film laid on the surface of the elevator call panel, and the recovery direction of the old film is opposite to the output direction of the new film; The base comprises a fixed base, a movable base and a telescopic mechanism; the fixed base is drivingly connected to the sliding drive mechanism; the movable base is installed on the fixed base through a plurality of telescopic structures; the coating roller shaft and the recovery roller shaft are arranged on the movable base; the telescopic mechanism is used to press the movable base so that the new film on the coating roller or the recovery roller is in contact with the plane where the elevator call panel is located; The telescopic mechanism includes two limit shafts and a spring; the two limit shafts are arranged facing each other and at intervals, and are respectively arranged on a fixed base frame and a movable base frame; the spring is sleeved on the outer periphery of the two limit shafts, and the two ends of the spring are respectively connected to the two limit shafts, or to the fixed base frame and the movable base frame; the distance between the fixed base frame and the movable base frame changes with the remaining amount of new film on the coating roller or the recovery amount of old film on the recovery roller.

2. The automatic film laminating device for an elevator call panel according to claim 1, characterized in that, It also includes a timer and a controller; the controller is electrically connected to the timer and the sliding drive mechanism respectively; when the controller determines that the film replacement time has arrived according to the timing signal sent by the timer, the controller controls the sliding drive mechanism to drive the base to run in the recovery direction of the old film and the output direction of the new film in turn, so as to realize the recovery of the old film and the covering of the new film.

3. The automatic film laminating device for an elevator call panel according to claim 2, characterized in that, It also includes an infrared sensor; the infrared sensor is used to detect whether there is a human body in the spatial area where the elevator call panel is located, and send a human body detection signal to the controller; when the controller determines that the film replacement time has arrived according to the timing signal sent by the timer, and determines that there is no human body in the spatial area according to the human body detection signal, the controller controls the sliding drive mechanism to drive the base to run successively along the recovery direction of the old film and the output direction of the new film.

4. The automatic film laminating device for an elevator call panel according to claim 1, characterized in that, In addition to the laminating unit, it also includes a cutting blade and a cutting drive mechanism arranged on the base; the cutting blade is parallel to the laminating roller and is located at the new film output end of the laminating roller; the cutting drive mechanism is connected to the cutting blade to drive the cutting blade to move toward or away from the plane where the summoning panel is located.

5. The automatic film laminating device for an elevator call panel according to any one of claims 1 to 4, characterized in that, The slide drive mechanism comprises a slide drive source and two roller groups drivingly connected to the slide drive source; the two roller groups are parallel and spaced apart and axially connected to the same side of the fixed base frame; the slide rail is sandwiched between the two roller groups.

6. The automatic film laminating device for an elevator call panel according to claim 5, characterized in that, Each roller group includes a driving wheel and a driven wheel; the driving wheel is drivingly connected to the sliding driving source, and the driven wheel is drivingly connected to the driving wheel through a linkage belt; and / or the cross-sectional structure of the slide rail is T-shaped.

7. The automatic film laminating device for an elevator call panel according to any one of claims 1 to 4, characterized in that, A protective sleeve is arranged on the outside of one side of the laminating roller which faces away from the plane where the elevator calling panel is located.

8. The automatic film laminating device for an elevator call panel according to claim 1 or 4, characterized in that, It further includes a monitor, a controller and an alarm; the monitor is used to obtain a monitoring image of the area other than the film covering unit and send it to the controller or the elevator monitoring center; the controller or the elevator monitoring center determines whether there is a risk of damage to the film covering unit based on the monitoring image, and determines whether to control the alarm to give an alarm according to the determination result.

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