Accurate film pasting device and using method thereof

Abstract

The invention provides an accurate film pasting device and a using method thereof, and belongs to the technical field of film pasting devices.The accurate film pasting device comprises a table board, a film pasting device and a film pasting device, the conveying mechanism is arranged on the upper side of the table board, the conveying mechanism comprises a conveying assembly, a detection assembly and an output assembly, and the detection assembly is connected with the conveying assembly and the output assembly; the moving mechanism is arranged in the table plate; the fixed plate is connected with the moving mechanism; the placing plate is fixedly connected to the upper end of the fixing plate; by using the device, the film pasting assembly operates, a protective film is pasted on the surface of a screen, during adsorption, the negative pressure channel is controlled to move, the adsorption plates are indirectly driven to move, the adsorption plates move on the surface of the screen, the adsorption plates on the left side and the right side slowly move towards the two sides of the screen, and the width of the adsorption plates is smaller than that of the screen; no bubble is generated on the surface of the screen subjected to negative pressure adsorption film pasting, and the surface of the screen is more attractive.

Description

Technical Field

[0001] The present invention belongs to the technical field of film sticking devices, and in particular relates to a precise film sticking device and a method for using the same. Background Art

[0002] A laminating device is a specialized machine used to precisely apply protective or functional films to various surfaces, such as mobile phone screens, automotive glass, and architectural windows. Its core function is to achieve high-precision lamination by ensuring a bubble-free, dust-free, and wrinkle-free bond between the film and substrate through automated or semi-automated operation. A laminating device typically consists of a rewinding mechanism, a dust removal system, a positioning module, a laminating mechanism, and a rewinding mechanism. The unwinding mechanism is responsible for smoothly releasing the film, while the dust removal system ensures a clean laminating surface through static elimination or dust removal. The positioning module utilizes optical sensors or mechanical guides to achieve precise alignment between the film and substrate, while the laminating mechanism employs rollers or scrapers to apply constant pressure to evenly press the film onto the substrate surface. Modern laminating devices are often equipped with intelligent control systems, using PLCs or touchscreens to set parameters (such as temperature, pressure, and speed) to accommodate film materials of varying materials (PET, TPU, tempered film, etc.) and sizes. Some high-end equipment also incorporates AI-powered visual inspection, which automatically identifies the substrate's contours and adjusts the laminating path. In industrial production, film-applying devices can significantly improve efficiency (e.g., completing dozens of film applications per minute) and reduce the defect rate associated with manual operation. In the consumer sector, portable film-applying devices simplify the self-applying process. Technical challenges lie in addressing edge warping, electrostatic dust absorption, and dynamic lamination precision control. Future development trends include innovative areas such as flexible adaptive lamination technology, nano-scale dust removal, and cross-material multifunctional composite film application.

[0003] In the prior art, a mobile phone needs to be affixed with a protective film on the surface of the screen before leaving the factory. The film is usually affixed by extrusion to the screen surface. Bubbles are easily generated between the protective film and the mobile phone screen using this method, affecting the overall appearance of the mobile phone. Summary of the Invention

[0004] The purpose of the present invention is to provide a precise film-sticking device and a method for using the same, aiming to solve the problem in the prior art that a mobile phone needs to be affixed with a protective film on the surface of the mobile phone screen before leaving the factory. The film-sticking method usually adopts an extrusion method to stick the protective film on the screen surface. Bubbles are easily generated between the protective film affixed by this method and the mobile phone screen, affecting the overall appearance of the mobile phone.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A precise film-sticking device, comprising:

[0007] table top;

[0008] A conveying mechanism, the conveying mechanism is arranged on the upper side of the table top, the conveying mechanism includes a conveying component, a detection component and an output component, and the detection component is connected to the conveying component and the output component;

[0009] A moving mechanism, wherein the moving mechanism is arranged in the table top;

[0010] a fixed plate connected to the moving mechanism;

[0011] a placement plate, the placement plate being fixedly connected to the upper end of the fixing plate;

[0012] The film sticking assembly is provided with two groups, and the two groups of film sticking assemblies cooperate to realize the screen surface film sticking. Each group of the film sticking assemblies includes a sliding hole, a control rod, a first connecting plate, a second negative pressure pump, a second connecting plate, an air pressure tube, an adsorption plate, a negative pressure channel, an empty slot, a pressure dividing channel, a connecting channel and an adsorption slot. The sliding hole is opened in the placement plate, and the control rod is slidably connected to the sliding hole. The first connecting plate is fixedly connected to one end of the control rod, the second negative pressure pump is fixedly connected to the upper end of the first connecting plate, the second connecting plate is fixedly connected to one end of the second negative pressure pump, and the air pressure The tube is fixedly connected in the second connecting plate, the air pressure tube is connected to the second negative pressure pump, the adsorption plate is fixedly connected to one end of the air pressure tube, the negative pressure channel is opened in the adsorption plate, the negative pressure channel is connected to the air pressure tube, the first connecting plate is opened at the lower end of the adsorption plate, the negative pressure channel is connected to the empty slot, the pressure dividing channel is opened in the adsorption plate, the pressure dividing channel is connected to the negative pressure channel, the adsorption slot is opened on the upper surface of the adsorption plate, the connecting channel is opened in the adsorption plate, the connecting channel is connected to the pressure dividing channel, and the upper and lower ends of the adsorption slot are respectively connected to the adsorption slot and the empty slot.

[0013] As a preferred solution of the present invention, an air cavity is installed in the fixed plate and the placement plate, and the air cavity is connected to the two sliding holes. A positive pressure pump and a first negative pressure pump are provided in the moving mechanism. Two air pressure channels are opened in the fixed plate, and the two air pressure channels are respectively connected to the positive pressure pump and the first negative pressure pump, and both of the two air pressure channels are connected to the air cavity.

[0014] As a preferred solution of the present invention, the conveying assembly includes a first bracket, a U-shaped bracket, a unwinding roller, a first motor, a connecting bracket, a guide bracket, a guide roller, a conveying pump, a second bracket, a film sticking bracket and a mounting bracket, and two of the first brackets, the second bracket and the mounting bracket are each provided, the two first brackets are fixedly connected to the upper end of the table board, the U-shaped bracket is fixedly connected to the upper ends of the two first brackets, the unwinding roller is rotatably connected to the U-shaped bracket, the first motor is fixedly connected to the surface of the U-shaped bracket, the output end of the U-shaped bracket is fixedly connected to one end of the unwinding roller, the connecting bracket is fixedly connected to the two first brackets, the guide bracket is fixedly connected to the surface of the connecting bracket, the guide roller is rotatably connected to the guide bracket, the conveying pump is fixedly connected to one end of the guide bracket, the two second brackets are fixedly connected to the surface of the conveying pump, the film sticking bracket is fixedly connected to one end of the conveying pump, and the two mounting brackets are fixedly connected to one end of the conveying pump.

[0015] As a preferred solution of the present invention, the detection component includes an infrared transmitter and an infrared receiver, the infrared transmitter is fixedly connected to the upper end of the film rack, and the infrared receiver is fixedly connected to the placement plate.

[0016] As a preferred solution of the present invention, the output component includes an output rack, an output roller, a third bracket, a mounting plate, a recovery roller and a second motor. Two of the third brackets and two of the mounting plates are provided. The output rack is fixedly connected to one end of the film rack, and the output roller is rotatably connected to the output rack. The two third brackets are fixedly connected to the upper end of the table top, and the two mounting plates are respectively fixedly connected to the upper ends of the two third brackets. The recovery roller is rotatably connected to the surfaces of the two mounting plates. The second motor is fixedly connected to the surface of one of the mounting plates, and the output end of the second motor is fixedly connected to one end of the recovery roller.

[0017] As a preferred solution of the present invention, the moving mechanism includes a sliding groove, a sliding block, a threaded block, a screw, a side plate and a third motor. There are two side plates, the sliding groove is opened in the table plate, the sliding block is fixedly connected to the lower end of the fixed plate, the sliding block is slidably connected in the sliding groove, the threaded block is fixedly connected to the lower end of the sliding block, the two side plates are fixedly connected to the lower end of the table plate, the screw is rotatably connected to the surfaces of the two side plates, the screw is threadedly connected to the threaded block, the third motor is fixedly connected to one end of one of the side plates, the output end of the third motor is fixedly connected to one end of the screw, and the positive pressure pump and the first negative pressure pump are both installed in the sliding block.

[0018] As a preferred solution of the present invention, a control terminal is fixedly connected to the upper end of the table top.

[0019] As a preferred solution of the present invention, the four corners of the lower end of the table top are fixedly connected with supporting feet, and the surfaces of the multiple supporting feet are respectively fixedly connected to two cross bars.

[0020] As a preferred solution of the present invention, a plurality of heat dissipation holes are provided on the lower surface of the sliding block.

[0021] A method for using a precise film-sticking device includes the following steps:

[0022] S1. Place the screen to be film-laminated on the placement plate, control the movement mechanism to operate, and indirectly drive the placement plate to move to the lower side of the film-laminated rack;

[0023] S2, control the conveying mechanism to move the protective film to the upper side of the screen;

[0024] S3. The detection component operates, and the infrared emitter generates infrared light. The infrared light passes through the protective film and irradiates the screen surface. The excess light beam is received by the infrared receiver to determine whether the protective film is aligned with the screen.

[0025] S4: The film sticking assembly starts operating, and the second negative pressure pump generates negative pressure, which is output through the air pressure pipe, the negative pressure channel, the pressure-dividing channel, and the connecting channel. The film sticking assemblies on both sides cooperate to adsorb the protective film on the upper side of the screen onto the screen surface.

[0026] S5. During the adsorption process, the positive pressure pump is controlled to operate. The positive pressure generated by the positive pressure pump enters the air cavity through the air pressure channel, and the positive pressure enters the sliding hole, pushing the control rod to move. The two control rods move at the same time, indirectly driving the two adsorption plates to move in the opposite direction until they move out of the screen surface, completing the film application.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. In the present invention, by using this device, the film sticking component is operated to adsorb the protective film on the screen surface. During adsorption, the negative pressure channel is controlled to move, indirectly driving the adsorption plate to move. The adsorption plate moves on the surface of the screen, and the adsorption plates on the left and right sides slowly move to both sides of the screen. The width of the adsorption plate is smaller than the width of the screen. No bubbles are generated on the screen surface after the negative pressure adsorption film is applied, and the surface of the screen is more beautiful.

[0029] 2. In the present invention, the infrared emitter generates infrared light, which passes through the protective film and is received by the infrared receiver. When the infrared light passes through the position where the protective film is cut, it undergoes a certain degree of refraction. This position coincides with the edge of the screen. The control mechanism indirectly drives the placement plate to move, so that the screen in the placement plate moves to the lower side of the cut position of the protective film. The detection component makes the film application more accurate.

[0030] 3. In the present invention, the first bracket in the conveying assembly plays the role of supporting the U-shaped frame. The surface of the unwinding roller reels up the protective film to be pasted. When the first motor is running, it drives the unwinding roller connected to its output end to rotate to realize the unwinding function. The unwinding passes through the surface of the rubber plate and the conveying pump and enters the film pasting frame. The rubber plate is fixedly connected to the guide frame, and the rubber plate plays the role of guiding the protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0032] Figure 1 This is a first perspective stereogram of the present invention;

[0033] Figure 2 is a second perspective stereogram of the present invention;

[0034] Figure 3 This is a third perspective stereogram of the present invention;

[0035] Figure 4 For the present invention Figure 3 A partial enlarged view of point A in the middle;

[0036] Figure 5 is a cross-sectional view of the present invention;

[0037] Figure 6 For the present invention Figure 5 A partial enlarged view of point B in the middle;

[0038] Figure 7 For the present invention Figure 5 A partial enlarged view of point C in the middle;

[0039] Figure 8 A three-dimensional diagram of the adsorption plate of the present invention;

[0040] Figure 9 It is a schematic diagram of the air pressure direction of the present invention;

[0041] Figure 10 It is a flowchart of the use of the present invention.

[0042] In the figure: 1. Table top; 101. Support legs; 102. Crossbar; 2. First bracket; 201. U-shaped bracket; 202. Unwinding roller; 203. First motor; 204. Connecting bracket; 205. Guide bracket; 206. Guide roller; 207. Rubber sheet; 3. Delivery pump; 301. Second bracket; 4. Film-applying bracket; 401. Mounting bracket; 402. Detection assembly; 5. Output bracket; 501. Output roller; 6. Third bracket; 601. Mounting plate; 602. Recovery roller; 603. Second motor; 7. Sliding slot; 701. Sliding block; 702. Fixed Plate; 703, placement plate; 8, threaded block; 801, screw; 802, side plate; 803, third motor; 9, air cavity; 901, positive pressure pump; 902, first negative pressure pump; 903, air pressure channel; 10, sliding hole; 1001, control rod; 1002, first connecting plate; 1003, second negative pressure pump; 1004, second connecting plate; 1005, air pressure tube; 11, adsorption plate; 1101, negative pressure channel; 1102, empty slot; 1103, pressure dividing channel; 1104, connecting channel; 1105, adsorption slot; 12, control terminal. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] Example 1

[0045] See also Figures 1-10 , the present invention provides the following technical solutions:

[0046] A precise film-sticking device, comprising:

[0047] Table board 1;

[0048] The conveying mechanism is provided on the upper side of the table top 1 and includes a conveying assembly, a detection assembly 402 and an output assembly. The detection assembly 402 connects the conveying assembly and the output assembly.

[0049] The moving mechanism is arranged in the table top 1;

[0050] A fixed plate 702 connected to the moving mechanism;

[0051] A placement plate 703, the placement plate 703 is fixedly connected to the upper end of the fixed plate 702;

[0052] The film sticking assembly is provided with two groups, and the two groups of film sticking assemblies cooperate to realize the screen surface film sticking. Each group of film sticking assemblies includes a sliding hole 10, a control rod 1001, a first connecting plate 1002, a second negative pressure pump 1003, a second connecting plate 1004, an air pressure tube 1005, an adsorption plate 11, a negative pressure channel 1101, an empty groove 1102, a pressure dividing channel 1103, a connecting channel 1104 and an adsorption groove 1105. The sliding hole 10 is opened in the placement plate 703, the control rod 1001 is slidably connected to the sliding hole 10, the first connecting plate 1002 is fixedly connected to one end of the control rod 1001, the second negative pressure pump 1003 is fixedly connected to the upper end of the first connecting plate 1002, the second connecting plate 1004 is fixedly connected to one end of the second negative pressure pump 1003, the air pressure tube 100 5 is fixedly connected to the second connecting plate 1004, the air pressure tube 1005 is connected to the second negative pressure pump 1003, the adsorption plate 11 is fixedly connected to one end of the air pressure tube 1005, the negative pressure channel 1101 is opened in the adsorption plate 11, and the negative pressure channel 1101 is connected to the air pressure tube 1005, the first connecting plate 1002 is opened at the lower end of the adsorption plate 11, the negative pressure channel 1101 is connected to the empty groove 1102, the pressure dividing channel 1103 is opened in the adsorption plate 11, and the pressure dividing channel 1103 is connected to the negative pressure channel 1101, the adsorption groove 1105 is opened on the upper surface of the adsorption plate 11, the connecting channel 1104 is opened in the adsorption plate 11, and the connecting channel 1104 is connected to the pressure dividing channel 1103, and the upper and lower ends of the adsorption groove 1105 are connected to the adsorption groove 1105 and the empty groove 1102, respectively.

[0053] In a specific embodiment of the present invention, a conveying mechanism is installed on the upper side of the table top 1. The conveying mechanism is used to convey the protective film. The conveying mechanism consists of a conveying component, a detection component 402 and an output component. The conveying component is used to output the protective film. The detection component 402 is used to position the protective film to make the film sticking more accurate. The output component is used to recycle the protective film after use. The surface of the protective film is sheared with cuts that match the screen. When the cuts are attached to the screen surface, the cuts break at the shears; the film sticking component sticks the protective film to the screen surface, and the control rod 1001 slides in the sliding hole 10. The sliding of the control rod 1001 is controlled by the pressure in the sliding hole 10. The first connecting plate 1002 serves to connect the second negative pressure pump 1003. The second negative pressure pump 1 003 generates negative pressure during operation, and the negative pressure acts on the negative pressure channel 1101 through the air pressure tube 1005. The negative pressure is output through the pressure divider channel 1103 and the connecting channel 1104, and the protective film on the upper side is adsorbed on the screen surface. When the protective film contacts the upper surface of the adsorption plate 11, the upper outlet of the connecting channel 1104 is blocked by the protective film, and the negative pressure is completely output by the empty slot 1102. During adsorption, the movement of the negative pressure channel 1101 is controlled, and the movement of the adsorption plate 11 is indirectly driven. The adsorption plate 11 moves on the surface of the screen, and the adsorption plates 11 on the left and right sides slowly move to both sides of the screen. The width of the adsorption plate 11 is smaller than the width of the screen. No bubbles are generated on the screen surface after the negative pressure adsorption film is applied, and the surface of the screen is more beautiful.

[0054] For details, please refer to Figures 1-10 An air cavity 9 is installed in the fixed plate 702 and the placement plate 703, and the air cavity 9 is connected to the two sliding holes 10. A positive pressure pump 901 and a first negative pressure pump 902 are provided in the moving mechanism. Two air pressure channels 903 are opened in the fixed plate 702, and the two air pressure channels 903 are respectively connected to the positive pressure pump 901 and the first negative pressure pump 902, and both air pressure channels 903 are connected to the air cavity 9.

[0055] In this embodiment: the positive and negative pressures generated by the positive pressure pump 901 and the first negative pressure pump 902 act on the air cavity 9, and the air cavity 9 is connected to the sliding hole 10. When the pressure in the air cavity 9 changes, the negative pressure channel 1101 in the sliding hole 10 is controlled to move.

[0056] For details, please refer to Figures 1-10The conveying assembly includes a first bracket 2, a U-shaped frame 201, a reeling roller 202, a first motor 203, a connecting frame 204, a guide frame 205, a guide roller 206, a conveying pump 3, a second bracket 301, a film-sticking frame 4 and a mounting frame 401. There are two first brackets 2, two second brackets 301 and two mounting frames 401. The two first brackets 2 are fixedly connected to the upper end of the table board 1, the U-shaped frame 201 is fixedly connected to the upper ends of the two first brackets 2, the reeling roller 202 is rotatably connected to the U-shaped frame 201, and the first motor 203 is fixedly connected. It is connected to the surface of the U-shaped frame 201, the output end of the U-shaped frame 201 is fixedly connected to one end of the unwinding roller 202, the connecting frame 204 is fixedly connected to the two first brackets 2, the guide frame 205 is fixedly connected to the surface of the connecting frame 204, the guide roller 206 is rotatably connected to the guide frame 205, the conveying pump 3 is fixedly connected to one end of the guide frame 205, the two second brackets 301 are fixedly connected to the surface of the conveying pump 3, the film sticking frame 4 is fixedly connected to one end of the conveying pump 3, and the two mounting frames 401 are fixedly connected to one end of the conveying pump 3.

[0057] In this embodiment: the first bracket 2 in the conveying assembly plays the role of supporting the U-shaped frame 201, and the surface of the unwinding roller 202 rolls up the protective film to be pasted. When the first motor 203 is running, it drives the unwinding roller 202 connected to its output end to rotate to realize the unwinding function. The unwinding passes through the surface of the rubber plate 207 and the conveying pump 3 and enters the film pasting frame 4. The rubber plate 207 is fixedly connected to the guide frame 205, and the rubber plate 207 plays the role of guiding the protective film.

[0058] For details, please refer to Figures 1-10 The detection component 402 includes an infrared transmitter and an infrared receiver. The infrared transmitter is fixed to the upper end of the film rack 4, and the infrared receiver is fixed to the placement plate 703.

[0059] In this embodiment: the infrared emitter generates infrared light, which passes through the protective film and is received by the infrared receiver. When the infrared light passes through the position where the protective film is cut, it undergoes a certain degree of refraction. This position coincides with the edge of the screen, and the control moving mechanism indirectly drives the placement plate 703 to move, so that the screen inside the placement plate 703 moves to the lower side of the cut position of the protective film.

[0060] For details, please refer to Figures 1-10The output component includes an output frame 5, an output roller 501, a third bracket 6, a mounting plate 601, a recovery roller 602 and a second motor 603. There are two third brackets 6 and two mounting plates 601. The output frame 5 is fixedly connected to one end of the film rack 4. The output roller 501 is rotatably connected to the output frame 5. The two third brackets 6 are fixedly connected to the upper end of the table board 1. The two mounting plates 601 are respectively fixedly connected to the upper ends of the two third brackets 6. The recovery roller 602 is rotatably connected to the surface of the two mounting plates 601. The second motor 603 is fixedly connected to the surface of one of the mounting plates 601. The output end of the second motor 603 is fixedly connected to one end of the recovery roller 602.

[0061] In this embodiment, the recovery roller 602 in the output assembly is controlled by the second motor 603 . The recovery roller 602 is used to reel in the used protective film, which passes through the surface of the output roller 501 .

[0062] For details, please refer to Figures 1-10 The moving mechanism includes a sliding groove 7, a sliding block 701, a threaded block 8, a screw 801, a side plate 802 and a third motor 803. There are two side plates 802. The sliding groove 7 is opened in the table board 1. The sliding block 701 is fixedly connected to the lower end of the fixed plate 702. The sliding block 701 is slidably connected in the sliding groove 7. The threaded block 8 is fixedly connected to the lower end of the sliding block 701. The two side plates 802 are both fixedly connected to the lower end of the table board 1. The screw 801 is rotatably connected to the surfaces of the two side plates 802. The screw 801 is threadedly connected to the threaded block 8. The third motor 803 is fixedly connected to one end of one of the side plates 802. The output end of the third motor 803 is fixedly connected to one end of the screw 801. The positive pressure pump 901 and the first negative pressure pump 902 are both installed in the sliding block 701.

[0063] In this embodiment, the third motor 803 in the moving mechanism drives the screw 801 connected to its output end to rotate during operation, the screw 801 drives the threaded block 8 to move, the threaded block 8 drives the sliding block 701 to move, and indirectly drives the screen to move.

[0064] For details, please refer to Figures 1-10 The upper end of the table top 1 is fixedly connected with a control terminal 12.

[0065] In this embodiment: the control terminal 12 is connected to the first motor 203, the second motor 603, the infrared transmitter, the third motor 803, the positive pressure pump 901, the first negative pressure pump 902 and the infrared receiver signal, and the control terminal 12 controls the operation of the first motor 203, the second motor 603, the infrared transmitter, the third motor 803, the positive pressure pump 901, the first negative pressure pump 902 and the infrared receiver. It should be noted that the control terminal 12, the first motor 203, the second motor 603, the infrared transmitter, the third motor 803, the positive pressure pump 901, the first negative pressure pump 902 and the infrared receiver signal connection used in this device are all existing technologies. The specific model to be used can be selected according to actual needs, and no further details will be given here.

[0066] For details, please refer to Figures 1-10 The four corners of the lower end of the table top 1 are fixedly connected with supporting feet 101, and the surfaces of the multiple supporting feet 101 are respectively fixedly connected with two cross bars 102.

[0067] In this embodiment, the supporting legs 101 serve to support the table top 1 , and the crossbar 102 serves to reinforce the supporting legs 101 .

[0068] For details, please refer to Figures 1-10 The lower surface of the sliding block 701 is provided with a plurality of heat dissipation holes.

[0069] In this embodiment, the heat dissipation holes are used for heat dissipation of the positive-pressure pump 901 and the first negative-pressure pump 902 .

[0070] The working principle and use process of the present invention: When the device is in use, first place the screen to be film-coated on the placement plate 703, control the movement mechanism to operate, and the control mechanism indirectly drives the placement plate 703 to move to the lower side of the film-coating rack 4; control the conveying mechanism to operate, and control the protective film to move to the upper side of the screen; the detection component 402 operates, the infrared transmitter generates infrared light, and the infrared light passes through the protective film and irradiates the screen surface, and the excess light beam is received by the infrared receiver to determine whether the protective film is aligned with the screen; the film-coating component operates, and the second negative pressure pump 1003 generates negative pressure, and the negative pressure is output through the air pressure tube 1005, the negative pressure channel 1101, the pressure dividing channel 1103 and the connecting channel 1104. With the cooperation of the film-coating components on both sides, the protective film on the upper side of the screen is adsorbed on the screen. Surface; During the adsorption process, the positive pressure pump 901 is controlled to operate, and the positive pressure generated by the positive pressure pump 901 enters the air cavity 9 through the air pressure channel 903, and the positive pressure enters the sliding hole 10, pushing the control rod 1001 to move, and the two control rods 1001 move at the same time, indirectly driving the two adsorption plates 11 to move in the opposite direction, until they move out of the screen surface, completing the film pasting; By using this device, the film pasting component is operated to adsorb the protective film on the screen surface. During adsorption, the negative pressure channel 1101 is controlled to move, indirectly driving the adsorption plate 11 to move, and the adsorption plate 11 moves on the surface of the screen. The adsorption plates 11 on the left and right sides slowly move to both sides of the screen. The width of the adsorption plate 11 is smaller than the width of the screen. No bubbles are generated on the screen surface after negative pressure adsorption, and the surface of the screen is more beautiful.

[0071] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A precise film-sticking device, characterized in that: include: Table board (1); A conveying mechanism, the conveying mechanism being arranged on the upper side of the table top (1), the conveying mechanism comprising a conveying component, a detection component (402) and an output component, the detection component (402) being connected to the conveying component and the output component; A moving mechanism, wherein the moving mechanism is arranged in the table top (1); a fixed plate (702), the fixed plate (702) being connected to the moving mechanism; a placement plate (703), wherein the placement plate (703) is fixedly connected to the upper end of the fixing plate (702); The film sticking assembly is provided with two groups, and the two groups of film sticking assemblies cooperate to realize the film sticking on the screen surface, and each group of the film sticking assemblies includes a sliding hole (10), a control rod (1001), a first connecting plate (1002), a second negative pressure pump (1003), a second connecting plate (1004), an air pressure tube (1005), an adsorption plate (11), a negative pressure channel (1101), an empty groove (1102), a pressure dividing channel (1103), a connecting channel (1104) and an adsorption groove (11 05), the sliding hole (10) is opened in the placement plate (703), the control rod (1001) is slidably connected in the sliding hole (10), the first connecting plate (1002) is fixedly connected to one end of the control rod (1001), the second negative pressure pump (1003) is fixedly connected to the upper end of the first connecting plate (1002), the second connecting plate (1004) is fixedly connected to one end of the second negative pressure pump (1003), the air pressure tube (1005) is fixedly connected to the first connecting plate (1002), and the second connecting plate (1004) is fixedly connected to one end of the second negative pressure pump (1003). In the second connecting plate (1004), the air pressure tube (1005) is connected to the second negative pressure pump (1003), the adsorption plate (11) is fixedly connected to one end of the air pressure tube (1005), the negative pressure channel (1101) is opened in the adsorption plate (11), and the negative pressure channel (1101) is connected to the air pressure tube (1005), the first connecting plate (1002) is opened at the lower end of the adsorption plate (11), and the negative pressure channel (1101) is connected to the empty groove (1102). The pressure-dividing channel (1103) is opened in the adsorption plate (11), and the pressure-dividing channel (1103) is connected to the negative pressure channel (1101). The adsorption groove (1105) is opened on the upper surface of the adsorption plate (11). The connecting channel (1104) is opened in the adsorption plate (11), and the connecting channel (1104) is connected to the pressure-dividing channel (1103). The upper and lower ends of the adsorption groove (1105) are respectively connected to the adsorption groove (1105) and the empty groove (1102).

2. The precise film-sticking device according to claim 1, characterized in that: An air cavity (9) is installed in the fixed plate (702) and the placement plate (703), and the air cavity (9) is connected to the two sliding holes (10). A positive pressure pump (901) and a first negative pressure pump (902) are provided in the moving mechanism. Two air pressure channels (903) are opened in the fixed plate (702), and the two air pressure channels (903) are respectively connected to the positive pressure pump (901) and the first negative pressure pump (902), and the two air pressure channels (903) are both connected to the air cavity (9).

3. The precise film-sticking device according to claim 2, characterized in that: The conveying assembly comprises a first bracket (2), a U-shaped bracket (201), a reeling roller (202), a first motor (203), a connecting bracket (204), a guide bracket (205), a guide roller (206), a conveying pump (3), a second bracket (301), a film-sticking bracket (4) and a mounting bracket (401). The first bracket (2), the second bracket (301) and the mounting bracket (401) are each provided with two, the two first brackets (2) are fixedly connected to the upper end of the table top (1), the U-shaped bracket (201) is fixedly connected to the upper ends of the two first brackets (2), the reeling roller (202) is rotatably connected to the U-shaped bracket (201), and the first motor (203) is fixedly connected to the upper end of the two first brackets (2). The U-shaped frame (201) is fixedly connected to the surface of the U-shaped frame (201), the output end of the U-shaped frame (201) is fixedly connected to one end of the unwinding roller (202), the connecting frame (204) is fixedly connected to the inside of the two first brackets (2), the guide frame (205) is fixedly connected to the surface of the connecting frame (204), the guide roller (206) is rotatably connected to the inside of the guide frame (205), the delivery pump (3) is fixedly connected to one end of the guide frame (205), the two second brackets (301) are both fixedly connected to the surface of the delivery pump (3), the film sticking frame (4) is fixedly connected to one end of the delivery pump (3), and the two mounting frames (401) are both fixedly connected to one end of the delivery pump (3).

4. The precise film-sticking device according to claim 3, characterized in that: The detection component (402) includes an infrared transmitter and an infrared receiver, wherein the infrared transmitter is fixedly connected to the upper end of the film-sticking frame (4), and the infrared receiver is fixedly connected to the placement plate (703).

5. The precise film-sticking device according to claim 4, characterized in that: The output assembly includes an output frame (5), an output roller (501), a third bracket (6), a mounting plate (601), a recovery roller (602) and a second motor (603). The third bracket (6) and the mounting plate (601) are both provided with two. The output frame (5) is fixedly connected to one end of the film-sticking frame (4). The output roller (501) is rotatably connected to the inside of the output frame (5). The two third brackets (6) are both fixedly connected to the upper end of the table top (1). The two mounting plates (601) are respectively fixedly connected to the upper ends of the two third brackets (6). The recovery roller (602) is rotatably connected to the surfaces of the two mounting plates (601). The second motor (603) is fixedly connected to the surface of one of the mounting plates (601). The output end of the second motor (603) is fixedly connected to one end of the recovery roller (602).

6. The precise film-sticking device according to claim 5, characterized in that: The moving mechanism comprises a sliding groove (7), a sliding block (701), a threaded block (8), a screw (801), a side plate (802) and a third motor (803), wherein the side plates (802) are provided with two, the sliding groove (7) is opened in the table top (1), the sliding block (701) is fixedly connected to the lower end of the fixed plate (702), the sliding block (701) is slidably connected in the sliding groove (7), the threaded block (8) is fixedly connected to the lower end of the sliding block (701), and the two The side panels (802) are fixedly connected to the lower ends of the table top (1), the screw (801) is rotatably connected to the surfaces of the two side panels (802), the screw (801) is threadedly connected to the threaded block (8), the third motor (803) is fixedly connected to one end of one of the side panels (802), the output end of the third motor (803) is fixedly connected to one end of the screw (801), and the positive pressure pump (901) and the first negative pressure pump (902) are both installed in the sliding block (701).

7. The precise film-sticking device according to claim 6, characterized in that: The upper end of the table top (1) is fixedly connected to a control terminal (12).

8. The precise film-sticking device according to claim 7, characterized in that: The four corners of the lower end of the table top (1) are fixedly connected to supporting feet (101), and the surfaces of the plurality of supporting feet (101) are respectively fixedly connected to two cross bars (102).

9. The precise film-sticking device according to claim 8, characterized in that: The lower surface of the sliding block (701) is provided with a plurality of heat dissipation holes.

10. A method for using a precise film-sticking device, using the precise film-sticking device according to any one of claims 1 to 9, characterized in that: The steps include: S1. Place the screen to be film-coated on the placement plate (703), control the movement mechanism to operate, and indirectly drive the placement plate (703) to move to the lower side of the film-coating rack (4); S2, control the conveying mechanism to move the protective film to the upper side of the screen; S3, the detection component (402) operates, the infrared emitter generates infrared light, the infrared light passes through the protective film and irradiates the screen surface, and the excess light beam is received by the infrared receiver to determine whether the protective film is aligned with the screen; S4, the film sticking assembly is in operation, the second negative pressure pump (1003) generates negative pressure, and the negative pressure is output through the air pressure tube (1005), the negative pressure channel (1101), the pressure dividing channel (1103) and the connecting channel (1104). With the cooperation of the film sticking assemblies on both sides, the protective film on the upper side of the screen is adsorbed onto the screen surface; S5. During the adsorption process, the positive pressure pump (901) is controlled to operate. The positive pressure generated by the positive pressure pump (901) enters the air cavity (9) through the air pressure channel (903). The positive pressure enters the sliding hole (10), pushing the control rod (1001) to move. The two control rods (1001) move at the same time, indirectly driving the two adsorption plates (11) to move in the opposite direction until they move out of the screen surface, completing the film application.

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