Display protective film laminating device

Abstract

The utility model relates to the field of displayers, and particularly discloses a displayer protective film laminating device which comprises a conveying table. The conveying supporting belt is horizontally mounted on the conveying table; the film pasting cover is installed on the conveying table, and the film pasting cover covers part of the conveying supporting belt; the film winding roller is rotationally and detachably installed in the film pasting cover, and the axis of the film winding roller is perpendicular to the transmission direction of the conveying supporting belt; the liftable pressing roller rotates and is detachably mounted in the film pasting cover, and the axis of the pressing roller is parallel to the axis of the film winding roller; the negative pressure adsorption pipes can penetrate through the side wall of the film pasting cover to be opposite to the upper side of the conveying supporting belt, and the negative pressure adsorption pipes are located between the film winding roller and the pressing roller. According to the scheme, the negative pressure adsorption pipe can suck air between the protective film and the display screen, so that the protective film is better attached to the display screen, and the attaching efficiency of the protective film is improved.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a display protective film bonding device. Background Technology

[0002] In the manufacturing process of monitors, the application of protective film is an important step. It not only protects the screen from scratches and contamination, but also improves the appearance quality of the product. During transportation and handling, monitors are easily subjected to collisions and friction from external objects. The protective film can effectively prevent the screen from being scratched and keep the screen intact and clear.

[0003] When applying the protective film at the factory, the edges of the film are relatively soft and easily fold during the stretching process, which in turn makes it prone to bending during the application process, affecting the adhesion of the protective film. At the same time, the most common problem during the application process is that air bubbles will form between the protective film and the display screen, which may lead to multiple applications of the protective film, as well as partial failure of the adhesive and waste of the protective film. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a display protective film bonding device to solve the problem that the edges of the protective film are relatively soft and easily fold during the stretching process, which in turn makes it easy to bend during the bonding process and affect the bonding effect of the protective film.

[0005] To achieve the above objectives, the basic solution of this utility model is as follows: A display protective film bonding device, comprising:

[0006] Conveyor station;

[0007] Conveyor support belt, which is horizontally installed on the conveyor table;

[0008] A film-applying cover is installed on the conveyor table and covers a portion of the conveyor support belt. The film-applying cover has an inlet opposite one end of the conveyor support belt and an outlet opposite the other end of the conveyor support belt.

[0009] The film roll is rotatable and detachably installed inside the film application cover, and the axis of the film roll is perpendicular to the transmission direction of the conveyor support belt.

[0010] The pressure roller is adjustable and can be rotated and detachably installed inside the film application cover, with its axis parallel to the axis of the film roll roller.

[0011] Several negative pressure adsorption tubes are provided, which can pass through the side wall of the film covering and face the upper side of the conveyor support belt, and are located between the film roll roller and the pressure roller.

[0012] The technical principle of this utility model is as follows: During film application, the film roll is installed on the film roll roller, and the free end of the protective film on the film roll is pulled out to the outlet of the film application cover. The display screen to be coated is placed horizontally on the conveyor support belt. The conveyor support belt carries the display screen through the inlet of the film application cover and into the film application cover. At this time, the display screen is located between the conveyor support belt and the protective film. When the display screen moves to the pressure roller, the pressure roller abuts against the protective film and the display screen, pressing the protective film onto the display screen and stably bonding the protective film onto the display screen. At the same time, the negative pressure adsorption tube can draw air from between the protective film and the display screen, so that the protective film can better adhere to the display screen, improving the bonding efficiency of the protective film. At the same time, the edges of the protective film are not easily folded under the suction of the airflow, improving the accuracy of the bonding between the protective film and the display screen and reducing the scrap rate of the protective film.

[0013] Furthermore, it also includes:

[0014] The conveyor rollers that tension the conveyor support belt are mounted on both ends of the conveyor support belt.

[0015] An electric motor that drives the conveyor rollers to rotate.

[0016] With the above setup, the conveyor roller can work in conjunction with the motor to allow the conveyor support belt to stably convey the display screen, while also providing stable support for the display screen during the lamination process.

[0017] Furthermore, several support rollers are provided between the conveyor rollers, with the axis of the support rollers parallel to the conveyor rollers and the sidewalls of the support rollers in contact with the conveyor support belt.

[0018] With the above settings, the support roller can further stabilize the display screen as it is conveyed to the middle of the conveyor belt. When the display screen is pressed by the pressure roller, the support roller can also further stabilize the display screen.

[0019] Furthermore, the conveyor platform is provided with a through groove for installing the conveyor support belt, and the upper side of the conveyor support belt is higher than the upper surface of the conveyor platform; the conveyor roller and the support roller are rotatably installed in the groove of the conveyor platform.

[0020] With the above settings, the groove can more stably limit the installation and conveying of the conveyor roller, support roller and conveyor support belt, making the conveying and installation of the conveyor support belt more stable.

[0021] Furthermore, the top surface of the film applicator has an opening that faces the film roll roller, and a cover plate can be detachably installed at the opening of the film applicator.

[0022] The above-mentioned design facilitates the removal of the cover plate at the opening, the disassembly and installation of the film roll, and the replacement of the film roll on the film roll.

[0023] Furthermore, it also includes a lifting control unit and a rotating shaft. The pressure roller is rotatably mounted on the rotating shaft, and the end of the rotating shaft is vertically slidably connected to the film-applying cover. The lifting control unit includes:

[0024] The hydraulic telescopic rod is set vertically, with its upper end fixedly connected to the top side of the inner wall of the film-applying cover, and its lower end fixedly connected to the rotating shaft.

[0025] A hydraulic pump that controls the extension or retraction of a hydraulic telescopic rod;

[0026] PLC controller;

[0027] The controller that controls the hydraulic pump is electrically connected to the PLC controller.

[0028] With the above settings, the hydraulic pump can be controlled by the PLC controller and the controller, the length of the hydraulic telescopic rod can be controlled, and the height of the pressing roller can be controlled synchronously, so as to perform film pressing on displays of different thicknesses.

[0029] Furthermore, the lifting control unit also includes:

[0030] Several pressure sensors are fixedly installed on the outer wall of the pressure roller, and the pressure sensors are electrically connected to the PLC controller.

[0031] With the above settings, when the pressure data obtained by the PLC controller is too high, the PLC controller controls the hydraulic pump to start, the hydraulic pump controls the hydraulic telescopic rod to retract, and the hydraulic telescopic rod drives the rotating shaft and the pressure roller to move slightly upward, so that the pressure data obtained by the pressure sensor returns to the normal pressure state for the protective film and the display screen; conversely, when the pressure is too low, the hydraulic telescopic rod drives the rotating shaft and the pressure roller to move slightly downward, so that the pressure data obtained by the pressure sensor returns to the normal pressure state for the protective film and the display screen, thus automatically adjusting the clamping force on the protective film and the display screen. Attached Figure Description

[0032] Figure 1 This is an exploded view of the isometric direction of a display protective film bonding device according to an embodiment of this utility model.

[0033] Figure 2 This is an exploded view of the isometric direction of a display protective film bonding device according to an embodiment of this utility model.

[0034] Figure 3 This is a longitudinal sectional view of a display protective film bonding device in the main viewing direction according to an embodiment of the present utility model.

[0035] In the above figures: conveyor table 10, groove 101, conveyor support belt 20, film application cover 30, inlet 301, outlet 302, opening 303, cover plate 304, keyway 305, film roll roller 401, pressure roller 402, rotating shaft 403, negative pressure adsorption tube 50, motor 601, support roller 602, hydraulic telescopic rod 70, pressure sensor 80. Detailed Implementation

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0037] This embodiment is basically as follows: Figure 1 , Figure 2 and Figure 3 As shown, this utility model embodiment proposes a display protective film bonding device, including a conveyor table 10, a conveyor support belt 20, a film bonding cover 30, a film roll roller 401, a liftable pressure roller 402, several negative pressure adsorption tubes 50, a conveyor roller for tensioning the conveyor support belt 20, a motor 601 for driving the conveyor roller to rotate, a lifting control unit, and a rotating shaft 403. The conveyor roller is installed on both ends of the conveyor support belt 20. The conveyor table 10 is provided with a through groove 101 for mounting the conveyor support belt 20, and the upper side of the conveyor support belt 20 is higher than the upper surface of the conveyor table 10. Several support rollers 602 are provided between the conveyor rollers. The axis of the support rollers 602 is parallel to the conveyor rollers, and the sidewall of the support rollers 602 is in contact with the conveyor support belt 20. The conveyor rollers and support rollers 602 are rotatably mounted in the groove 101 of the conveyor table 10.

[0038] like Figure 1-3 As shown, the film-applying cover 30 is installed on the conveyor table 10, and the film-applying cover 30 covers the middle part of the conveyor support belt 20. Figure 1 An inlet 301, which is opposite to the left end of the conveyor support belt 20, runs through the upper left side of the film-applying cover 30, and an outlet 302, which is opposite to the right end of the conveyor support belt 20, runs through the upper right side of the film-applying cover 30.

[0039] like Figure 2 and Figure 3 As shown, the film roll 401 is located on the side of the film application cover 30 near the inlet 301, and the axis of the film roll 401 is perpendicular to the transmission direction of the conveyor support belt 20. The top surface of the film application cover 30 is provided with an opening 303, which is directly opposite to the film roll 401. A detachable cover plate 304 is fitted into the opening 303 of the film application cover 30. At the same time, the pressure roller 402 is coaxially rotatably mounted on the rotating shaft 403. The side wall of the film application cover 30 is provided with a keyway 305 for the end of the rotating shaft 403 to slide vertically, and the axis of the pressure roller 402 is parallel to the axis of the film roll 401.

[0040] At the same time, such as Figure 3As shown, the lifting control unit includes a hydraulic telescopic rod 70, a hydraulic pump that controls the extension or retraction of the hydraulic telescopic rod 70, a PLC controller, a controller that controls the hydraulic pump, and several pressure sensors 80. The hydraulic telescopic rod 70 is vertically arranged, with its upper end welded to the top side of the inner wall of the film-applying cover 30, and its lower end welded to the rotating shaft 403. The pressure sensors 80 are fixedly installed on the outer wall of the pressure roller 402. The PLC controller is electrically connected to both the controller and the pressure sensors 80.

[0041] In addition, such as Figure 1 and 2 As shown, the negative pressure adsorption tube 50 can pass through the side wall of the film covering 30 and is opposite to the upper side of the conveyor support belt 20, and the negative pressure adsorption tube 50 is located between the film roll roller 401 and the pressure roller 402.

[0042] In this embodiment, when using the display protective film bonding device, first remove the cover plate 304 at the opening 303, install the film roll onto the film roll roller 401, pull the free end of the protective film on the film roll out to the outlet 302 of the film covering 30, and then fasten the cover plate 304 at the opening 303 to complete the installation of the film roll and the preparatory steps for applying the film.

[0043] The display screen to be coated is placed horizontally on the conveyor support belt 20. The motor 601 is started. The motor 601 drives the conveyor support belt 20 to move towards the outlet 302 of the film coating cover 30 through the conveyor roller. The conveyor support belt 20 drives the display screen through the inlet 301 of the film coating cover 30 and into the film coating cover 30. At this time, the display screen is located between the conveyor support belt 20 and the protective film.

[0044] When the display screen moves to the pressing roller 402, the pressing roller 402 abuts against the protective film and the display screen. The pressure sensor 80 on the pressing roller 402 obtains the pressing pressure. When the pressure data obtained by the PLC controller is too high, the PLC controller controls the hydraulic pump to start, and the hydraulic pump controls the hydraulic telescopic rod 70 to retract. The hydraulic telescopic rod 70 drives the rotating shaft 403 and the pressing roller 402 to move slightly upward, so that the pressure data obtained by the pressure sensor 80 returns to the normal pressure state for the protective film and the display screen. When the pressure data obtained by the PLC controller is too low, the PLC controller controls the hydraulic pump to start, and the hydraulic pump controls the hydraulic telescopic rod 70 to extend. The hydraulic telescopic rod 70 drives the rotating shaft 403 and the pressing roller 402 to move slightly downward, so that the pressure data obtained by the pressure sensor 80 returns to the normal pressure state for the protective film and the display screen. The pressing roller 402 presses against the protective film and the display screen, stably adhering the protective film to the display screen.

[0045] During the above process, the negative pressure adsorption tube 50 can draw air between the protective film and the display screen, so that the protective film can better adhere to the display screen and improve the adhesion efficiency of the protective film. At the same time, the edges of the protective film are not easy to fold under the suction of the airflow, which improves the accuracy of the adhesion between the protective film and the display screen and reduces the scrap rate of the protective film.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A display protective film bonding device, characterized in that, include: Conveyor station; A conveyor support belt, which is horizontally mounted on a conveyor table; A film-applying cover is installed on a conveyor table and covers a portion of the conveyor support belt. The film-applying cover has an inlet opposite one end of the conveyor support belt and an outlet opposite the other end of the conveyor support belt. A film roll, which is rotatable and detachably installed inside a film application cover, and whose axis is perpendicular to the transmission direction of the conveyor support belt; A liftable pressure roller, which is rotatable and detachably installed inside the film application cover, and whose axis is parallel to the axis of the film roll roller; Several negative pressure adsorption tubes are provided, which can pass through the side wall of the film covering and face the upper side of the conveyor support belt, and the negative pressure adsorption tubes are located between the film roll roller and the pressure roller.

2. The display protective film bonding device as described in claim 1, characterized in that, Also includes: The conveyor rollers that tension the conveyor support belt are mounted on both ends of the conveyor support belt. An electric motor that drives the conveyor rollers to rotate.

3. The display protective film bonding device as described in claim 2, characterized in that, Several support rollers are provided between the conveying rollers. The axis of the support rollers is parallel to the conveying rollers, and the sidewalls of the support rollers are in contact with the conveying support belt.

4. The display protective film bonding device as described in claim 3, characterized in that, The conveyor platform is provided with a through groove for mounting the conveyor support belt, and the upper side of the conveyor support belt is higher than the upper surface of the conveyor platform; the conveyor roller and the support roller are rotatably mounted in the groove of the conveyor platform.

5. The display protective film bonding device as described in claim 4, characterized in that, The top surface of the film-applying cover has an opening that faces the film roll roller, and a cover plate can be detachably installed at the opening of the film-applying cover.

6. A display protective film bonding device as described in any one of claims 1-5, characterized in that, It also includes a lifting control unit and a rotating shaft. The pressure roller is rotatably mounted on the rotating shaft, and the end of the rotating shaft is vertically slidably connected to the film-applying cover. The lifting control unit includes: A hydraulic telescopic rod is provided, wherein the upper end of the hydraulic telescopic rod is fixedly connected to the top side of the inner wall of the film covering, and the lower end of the hydraulic telescopic rod is fixedly connected to the rotating shaft. A hydraulic pump that controls the extension or retraction of a hydraulic telescopic rod; PLC controller; A controller for controlling the hydraulic pump, wherein the PLC controller is electrically connected to the controller.

7. The display protective film bonding device as described in claim 6, characterized in that, The lifting control unit also includes: Several pressure sensors are fixedly installed on the outer wall of the pressure roller, and the pressure sensors are electrically connected to the PLC controller.

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