Automatic film sticking machine for elevator door plate
By designing an automatic film applicator for elevator door panels, the automated process solves the problem of time-consuming and labor-intensive manual film application, achieving efficient and precise control and cutting of film tension, thereby improving the protective effect and appearance quality of elevator door panels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-27
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, elevator door panels have a large area, and manual film application is time-consuming, labor-intensive, and inefficient, affecting the protective effect and product appearance.
An automatic film applicator for elevator door panels was designed, including a bracket, a conveyor belt assembly, and a film applicator. The automated process is carried out from feeding, cleaning, film feeding, precise positioning, pressing and cutting. The automated film applicator is achieved by using a motor drive, synchronous rotation of guide rollers, tension sensor control and cutting components.
It has enabled automated film application to elevator door panels, improving production efficiency, ensuring constant film tension, reducing bubbles and wrinkles, and enhancing the protective effect and product appearance quality.
Smart Images

Figure CN121778261A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of film application machine technology, and more particularly to an automatic film application machine for elevator door panels. Background Technology
[0002] During the manufacturing process of elevator door panels, in order to prevent the door panels from being scratched, contaminated or corroded during transportation, storage and installation, it is usually necessary to apply a temporary protective film to their decorative surface (such as stainless steel plate, coated steel plate, etc.).
[0003] Currently, the industry generally uses manual methods for applying protective film. The general process is as follows: workers unroll the protective film, manually align the edges of the door panel, apply the film to the door panel using a scraper or manual roller, and then cut off any excess film.
[0004] However, in the aforementioned existing technologies, the door panel area is large, manual film application is time-consuming and labor-intensive, and the production efficiency is low, affecting the protective effect and product appearance. Summary of the Invention
[0005] The purpose of this invention is to provide an automatic film-applying machine for elevator door panels, which aims to solve the problems in the prior art where the door panel area is large, manual film application is time-consuming and labor-intensive, and the production efficiency is low, affecting the protective effect and product appearance.
[0006] To achieve the above objectives, the present invention provides an automatic elevator door panel film applicator, comprising a support frame, a transmission belt assembly, and an applicator assembly. The applicator assembly includes a film feeding roller, a first motor, two guide rollers, two gears, a second motor, a cleaning component, a pressing component, a supporting component, and a cutting component. The transmission belt assembly is mounted on the inner side wall of the support frame, and the applicator assembly is connected to the support frame. The film feeding roller is rotatably connected to the support frame and located on one side of the support frame. The first motor is mounted on one side of the support frame, and its output end is fixedly connected to the film feeding roller. The two guide rollers are rotatably mounted on the support frame. Between the supports, and with the ends of the two guide rollers penetrating the supports, the two gears are detachably connected to the corresponding guide rollers and located at one end of the guide rollers, and the two gears mesh. The second motor is installed on one side of the support, and the output end of the second motor is fixedly connected to one of the guide rollers. The cleaning component is connected to the support and located on the right side of the film feeding roller. The cutting component is connected to the support and located on the left side of the film feeding roller. The support component is connected to the support and the film feeding roller respectively. The pressing component is connected to the support and located on one side of the cutting component.
[0007] The film application assembly further includes a tension sensor and a controller. The tension sensor is detachably connected to the bracket and located on one side of the bracket. The controller is detachably connected to the bracket and located on one side of the bracket. The controller is electrically connected to the first motor, the second motor, and the tension sensor, respectively.
[0008] The film application assembly further includes multiple rubber wheel seats, which are rotatably connected to the bracket and located on the inner sidewall of the bracket.
[0009] The cleaning component includes an air pump, a first mounting bracket, an air pipe, and multiple nozzles. The first mounting bracket is fixedly connected to the support and is located above the support. The air pump is detachably connected to the first mounting bracket and is located above the first mounting bracket. The air pipe is connected to the air pump and is located at the output end of the air pump. The air pipe passes through the first mounting bracket. The multiple nozzles are respectively connected to the air pipe and are located on the outer side wall of the air pipe.
[0010] The supporting component includes a side frame, a rolling bearing, and a pressure plate. The side frame is fixedly connected to the bracket and is located above the bracket. The rolling bearing is detachably connected to the film-feeding roller and is located at one end of the film-feeding roller, and the rolling bearing is in contact with the side frame. The pressure plate is detachably connected to the side frame and is located above the side frame, and the pressure plate is in contact with the rolling bearing.
[0011] The pressing component includes a second mounting bracket, an electric telescopic rod, a U-shaped frame, and a rubber roller. The second mounting bracket is detachably connected to the bracket and is located above the bracket. The U-shaped frame is located below the second mounting bracket. The electric telescopic rod is installed above the second mounting bracket, and the output end of the electric telescopic rod is fixedly connected to the U-shaped frame. The rubber roller is rotatably connected to the U-shaped frame and is located on the inner sidewall of the U-shaped frame.
[0012] The cutting component includes four third mounting brackets, four cylinders, and a cutting blade frame. The four third mounting brackets are detachably connected to the bracket and are located above the bracket. The cutting blade frame is located below the four third mounting brackets. The four cylinders are installed above the third mounting brackets, and the output end of the cylinders is fixedly connected to the cutting blade frame.
[0013] This invention discloses an automatic elevator door panel film applicator. First, the elevator door panel to be filmed is placed on the conveyor belt assembly. The conveyor belt assembly starts and moves the elevator door panel smoothly forward. When the elevator door panel enters the film applicator station, the cleaning component first blows on the surface of the door panel to remove dust, impurities, etc., ensuring the cleanliness of the film substrate. After the film applicator operation starts, the first motor drives the film-releasing roller to rotate, releasing the protective film material. Simultaneously, the second motor starts, driving the guide roller connected to it to rotate. Because the gears at the ends of the two guide rollers mesh with each other, the two rollers rotate synchronously in opposite directions, thereby actively pulling the film paper drawn from the film-releasing roller, making it taut and smoothly conveyed towards the elevator door panel. After the conveyed film is placed on the predetermined position on the elevator door panel surface, the pressing component immediately actuates to press the film tightly onto the door panel surface with a set pressure. After pressing, the cutting component precisely cuts the film along the edge of the door panel according to the preset door panel size, completing a single film application operation. Finally, the elevator door panel with the protective film applied is conveyed out of the equipment by the conveyor belt assembly for the next cycle or to the next process. Through the above automated process, the present invention realizes full automation from feeding, cleaning, film delivery, precise positioning, pressing to cutting, effectively solving the problems of time-consuming and labor-intensive manual film application, low production efficiency, and the problems of inaccurate alignment, bubbles, and wrinkles caused by manual operation, which affect the protective effect and product appearance. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0015] Figure 1 This is a schematic diagram of the automatic elevator door panel film applicator of the present invention.
[0016] Figure 2 This is a top view of the automatic elevator door panel film applicator of the present invention.
[0017] Figure 3 This is the invention Figure 2 A sectional view along line AA.
[0018] Figure 4 This is a front view of the automatic elevator door panel film applicator of the present invention.
[0019] Figure 5 This is a right view of the automatic elevator door panel film applicator of the present invention.
[0020] 101-Bracket, 102-Transmission belt assembly, 103-First motor, 104-Guide roller, 105-Gear, 106-Second motor, 107-Tension sensor, 108-Controller, 109-Rubber wheel seat, 110-Air pump, 111-First mounting bracket, 112-Air pipe, 113-Nozzle, 114-Side bracket, 115-Rolling bearing, 116-Pressure plate, 117-Second mounting bracket, 118-Electric telescopic rod, 119-U-shaped frame, 120-Rubber roller, 121-Third mounting bracket, 122-Cylinder, 123-Cutting blade frame, 124-Rolling roller, 125-Inclined frame, 126-Film feeding roller. Detailed Implementation
[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0022] Please see Figures 1-5 , Figure 1 This is a structural schematic diagram of the automatic elevator door panel film applicator of the present invention. Figure 2 This is a top view of the automatic elevator door panel film applicator of the present invention. Figure 3 This is the invention Figure 2 AA-line sectional view, Figure 4 This is a front view of the automatic elevator door panel film applicator of the present invention. Figure 5 This is a right view of the automatic elevator door panel film applicator of the present invention.
[0023] This invention provides an automatic elevator door panel film applicator, comprising a support frame 101, a transmission belt assembly 102, and an applicator assembly. The applicator assembly includes a film feeding roller 126, a first motor 103, two guide rollers 104, two gears 105, a second motor 106, a tension sensor 107, a controller 108, multiple rubber wheel seats 109, a cleaning component, a pressing component, a support component, and a cutting component. The cleaning component includes an air pump 110, a first mounting frame 111, an air pipe 112, and multiple nozzles 113. The support component includes a side frame 114, rolling bearings 115, and a pressure plate 116. The pressing component includes a second mounting frame 117, an electric telescopic rod 118, a U-shaped frame 119, and a rubber roller 120. The cutting component includes four third mounting frames 121, four cylinders 122, and a cutting blade frame 123. The automatic elevator door panel film applicator also includes a receiving component, which includes multiple rolling rollers 124 and an inclined frame 125.
[0024] The conveyor belt assembly 102 is mounted on the inner wall of the bracket 101, and the film-applying assembly is connected to the bracket 101. The film-feeding roller 126 is rotatably connected to the bracket 101 and located on one side of the bracket 101. The first motor 103 is mounted on one side of the bracket 101, and the output end of the first motor 103 is fixedly connected to the film-feeding roller 126. Two guide rollers 104 are rotatably mounted between the bracket 101, and the ends of the two guide rollers 104 penetrate the bracket 101. Two gears 105 are detachably connected to the corresponding guide rollers 104. The second motor 106 is mounted on one side of the bracket 101, and its output end is fixedly connected to one of the guide rollers 104. The cleaning component is connected to the bracket 101 and is located on the right side of the film feeding roller 126. The cutting component is connected to the bracket 101 and is located on the left side of the film feeding roller 126. The support component is connected to the bracket 101 and the film feeding roller 126 respectively. The pressing component is connected to the bracket 101 and is located on one side of the cutting component.
[0025] In this embodiment, firstly, the elevator door panel to be coated is placed on the conveyor belt assembly 102. The conveyor belt assembly 102 starts and drives the elevator door panel to move forward smoothly. When the elevator door panel enters the coating station, the cleaning component first blows on the surface of the door panel to remove dust, impurities, etc., to ensure the cleanliness of the coating substrate. After the coating operation starts, the first motor 103 drives the film-releasing roller 126 to rotate, releasing the protective film material. At the same time, the second motor 106 starts, which drives the guide roller 104 connected to it to rotate. Since the gears 105 at the ends of the two guide rollers 104 mesh with each other, the two rollers rotate synchronously in opposite directions, thereby actively pulling the film paper drawn from the film-releasing roller 126, making it taut and smoothly moving towards the elevator. The elevator door panel is conveyed in the direction of the door panel. After the conveyed film is placed on the predetermined position on the surface of the elevator door panel, the pressing component immediately actuates to press the film tightly onto the door panel surface with a set pressure. After pressing, the cutting component precisely cuts the film along the edge of the door panel according to the preset door panel size, completing a single film application operation. Finally, the elevator door panel with the protective film applied is conveyed out of the equipment by the conveyor belt assembly 102 for the next cycle or to the next process. Through the above automated process, the present invention realizes full automation from feeding, cleaning, film feeding, precise positioning, pressing to cutting, effectively solving the problems of time-consuming and labor-intensive manual film application, low production efficiency, and the problems of inaccurate alignment, bubbles and wrinkles caused by manual operation, which affect the protective effect and product appearance.
[0026] Furthermore, the tension sensor 107 is detachably connected to the bracket 101 and is located on one side of the bracket 101. The controller 108 is detachably connected to the bracket 101 and is located on one side of the bracket 101. The controller 108 is electrically connected to the first motor 103, the second motor 106 and the tension sensor 107 respectively.
[0027] In this embodiment, the tension sensor 107 monitors the membrane tension in real time and feeds the signal back to the controller 108. The controller 108 dynamically adjusts the rotation speed of the first motor 103 (controlling the film feeding speed) and the second motor 106 (controlling the traction speed) through an algorithm to ensure that the membrane maintains a preset constant tension during the conveying process.
[0028] Furthermore, the plurality of rubber wheel seats 109 are rotatably connected to the bracket 101 and are respectively located on the inner sidewall of the bracket 101.
[0029] In this embodiment, the rubber wheel seat 109 is used to guide the elevator door panel to move on the transmission belt assembly 102, restrict the movement of the elevator door panel in the X-axis direction, and ensure the efficiency and quality of film application.
[0030] Furthermore, the first mounting bracket 111 is fixedly connected to the support 101 and is located above the support 101. The air pump 110 is detachably connected to the first mounting bracket 111 and is located above the first mounting bracket 111. The air pipe 112 is connected to the air pump 110 and is located at the output end of the air pump 110. The air pipe 112 passes through the first mounting bracket 111. The plurality of nozzles 113 are respectively connected to the air pipe 112 and are respectively located on the outer side wall of the air pipe 112.
[0031] In this embodiment, the air pump 110 is activated during use to pressurize the air, which is then delivered to the nozzle 113 via the air pipe 112. The nozzle 113 is used to output air to clean the dust and impurities on the door panel surface, ensuring the cleanliness of the film substrate.
[0032] Furthermore, the side frame 114 is fixedly connected to the support 101 and is located above the support 101. The rolling bearing 115 is detachably connected to the film feeding roller 126 and is located at one end of the film feeding roller 126. The rolling bearing 115 is in contact with the side frame 114. The pressure plate 116 is detachably connected to the side frame 114 and is located above the side frame 114. The pressure plate 116 is in contact with the rolling bearing 115.
[0033] In this embodiment, the rolling bearing 115 on the side frame 114 is used to assist the film feeding roller 126 in rotating, and the pressure plate 116 is used to fix the rolling bearing 115.
[0034] Furthermore, the second mounting bracket 117 is detachably connected to the bracket 101 and is located above the bracket 101. The U-shaped frame 119 is located below the second mounting bracket 117. The electric telescopic rod 118 is installed above the second mounting bracket 117, and the output end of the electric telescopic rod 118 is fixedly connected to the U-shaped frame 119. The rubber roller 120 is rotatably connected to the U-shaped frame 119 and is located on the inner sidewall of the U-shaped frame 119.
[0035] In this embodiment, the electric telescopic rod 118 is activated, causing it to move the U-shaped frame 119 downward until the rubber roller 120 contacts the surface of the elevator door panel. Since the door panel is placed on the transmission belt assembly 102, the rubber roller 120 rotates while the door panel moves, pressing the film paper tightly onto the surface of the door panel with a set pressure.
[0036] Furthermore, the four third mounting brackets 121 are detachably connected to the bracket 101 and are respectively located above the bracket 101. The cutting blade frame 123 is disposed below the four third mounting brackets 121. The four cylinders 122 are respectively mounted above the third mounting brackets 121, and the output end of the cylinder 122 is fixedly connected to the cutting blade frame 123.
[0037] In this embodiment, the cylinder 122 is activated during use, causing it to move the cutting blade frame 123 downwards, precisely cutting the film paper along the edge of the door panel to complete a single film application operation. The structure is simple and easy for workers to operate and use.
[0038] Furthermore, the automatic elevator door panel film applicator also includes a receiving assembly, which includes multiple rolling rollers 124 and a ramp frame 125. The ramp frame 125 is disposed on one side of the transmission belt assembly 102, and the multiple rolling rollers 124 are rotatably connected to the ramp frame 125 and are respectively located between the ramp frames 125.
[0039] In this embodiment, the inclined frame 125 and the rolling roller 124 work together to collect the door panel after the film has been applied, making it convenient for staff to use.
[0040] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. An automatic film applicator for elevator door panels, characterized in that, It includes a bracket, a conveyor belt assembly, and a film application assembly. The conveyor belt assembly is mounted on the inner side wall of the bracket, and the film application assembly is connected to the bracket. The film-applying assembly includes a film-feeding roller, a first motor, two guide rollers, two gears, a second motor, a cleaning component, a pressing component, a supporting component, and a cutting component. The film-feeding roller is rotatably connected to the bracket and located on one side of the bracket. The first motor is mounted on one side of the bracket, and its output end is fixedly connected to the film-feeding roller. The two guide rollers are rotatably mounted between the brackets, and their ends penetrate the bracket. The two gears are detachably connected to their respective guide rollers and are located at one end of the guide rollers, and the two gears mesh. The second motor is mounted on one side of the bracket, and its output end is fixedly connected to one of the guide rollers. The cleaning component is connected to the bracket and located on the right side of the film-feeding roller. The cutting component is connected to the bracket and located on the left side of the film-feeding roller. The supporting component is connected to both the bracket and the film-feeding roller. The pressing component is connected to the bracket and located on one side of the cutting component.
2. The automatic elevator door panel film applicator as described in claim 1, characterized in that, The film application assembly also includes a tension sensor and a controller. The tension sensor is detachably connected to the bracket and located on one side of the bracket. The controller is detachably connected to the bracket and located on one side of the bracket. The controller is electrically connected to the first motor, the second motor and the tension sensor respectively.
3. The automatic elevator door panel film applicator as described in claim 2, characterized in that, The film application assembly also includes multiple rubber wheel seats, which are rotatably connected to the bracket and located on the inner sidewall of the bracket.
4. The automatic elevator door panel film applicator as described in claim 3, characterized in that, The cleaning component includes an air pump, a first mounting bracket, an air pipe, and multiple nozzles. The first mounting bracket is fixedly connected to the support and is located above the support. The air pump is detachably connected to the first mounting bracket and is located above the first mounting bracket. The air pipe is connected to the air pump and is located at the output end of the air pump. The air pipe passes through the first mounting bracket. The multiple nozzles are respectively connected to the air pipe and are located on the outer side wall of the air pipe.
5. The automatic elevator door panel film applicator as described in claim 4, characterized in that, The support component includes a side frame, a rolling bearing, and a pressure plate. The side frame is fixedly connected to the bracket and is located above the bracket. The rolling bearing is detachably connected to the film-feeding roller and is located at one end of the film-feeding roller, and the rolling bearing is in contact with the side frame. The pressure plate is detachably connected to the side frame and is located above the side frame, and the pressure plate is in contact with the rolling bearing.
6. The automatic elevator door panel film applicator as described in claim 5, characterized in that, The pressing component includes a second mounting bracket, an electric telescopic rod, a U-shaped frame, and a rubber roller. The second mounting bracket is detachably connected to the bracket and is located above the bracket. The U-shaped frame is located below the second mounting bracket. The electric telescopic rod is mounted above the second mounting bracket, and the output end of the electric telescopic rod is fixedly connected to the U-shaped frame. The rubber roller is rotatably connected to the U-shaped frame and is located on the inner sidewall of the U-shaped frame.
7. The automatic elevator door panel film applicator as described in claim 6, characterized in that, The cutting component includes four third mounting brackets, four cylinders, and a cutting blade frame. The four third mounting brackets are detachably connected to the bracket and are located above the bracket. The cutting blade frame is located below the four third mounting brackets. The four cylinders are installed above the third mounting brackets, and the output end of the cylinders is fixedly connected to the cutting blade frame.