Film pasting device for glass panel

Abstract

A film pasting device for a glass panel comprises a conveyor, a conveying roller set and a film pasting frame, a film pasting cavity is formed in the inner side of the film pasting frame, a plurality of air holes communicated with the film pasting cavity are formed in the film pasting frame, the film pasting frame is connected with an external negative pressure device, and the negative pressure device is configured to be capable of sucking air in the film pasting cavity. When air in the film pasting cavity is sucked and discharged by the negative pressure device, the film belt is attached to the glass panel, the film pasting frame is arranged, the glass panel and the film belt are limited to the same position, the space between the glass panel and the film belt is in a negative pressure state in a negative pressure suction mode, the film belt is adsorbed to the surface of the glass panel, and the film belt is attached to the surface of the glass panel. Compared with the mode that the film belt is attached to the glass panel in a rolling mode through a pressing roller, the situation that bubbles, wrinkles, edge warping and the like exist between the film belt and the glass panel in the rolling mode can be avoided, the film belt is evenly attached to the surface of the glass panel, and the film attaching quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of glass film pasting, and in particular refers to a film pasting device for a glass panel. Background Art

[0002] In the display field, especially in LED display technology, glass panels, as transparent materials that support and protect LED chips, not only provide a stable physical platform, but also minimize light loss and improve display effects through their high transparency. The main function of glass panel film during the production process is to protect its surface from scratches, cracks, etc., and to improve the aesthetics and privacy of the product. Film can prevent damage to the glass during transportation, installation and use.

[0003] At present, the film laminating process for glass panels generally adopts a roller laminating method. When the glass panel passes under the film tape, the upper pressure roller rolls the film tape down onto the glass panel to complete the film laminating process. However, in this process, due to the influence of factors such as the laminating angle of the film tape, the pressure of the pressure roller on the film tape and the conveying speed of the glass panel, the film tape may have bubbles, wrinkles and incomplete adhesion at the corners after laminating, resulting in uneven laminating quality and requiring subsequent rework and re-laminating. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention creatively adopts a film sticking device for a glass panel to at least partially solve the problems raised in the above background technology.

[0005] The technical solution adopted is as follows: The embodiment of the present invention proposes a film-applying device for a glass panel, comprising: A conveyor is disposed on a side wall of the mounting plate and is used to convey the glass panel; A film strip roll is rotatably mounted on a side wall of the mounting plate and is located above the conveyor; A conveying roller group, arranged on the side wall of the mounting plate and used for pulling the film tape; Among them, a film sticking frame is provided on the mounting plate corresponding to the output side of the conveying roller group, so that the conveying roller group can convey the film tape to the upper surface of the film sticking frame, the inner side of the film sticking frame is provided with a film sticking cavity, and the film sticking frame is provided with a plurality of air holes connected with the film sticking cavity, the film sticking frame is connected to an external negative pressure device, and the negative pressure device is configured to suck the air in the film sticking cavity, and a lifting machine is provided below the conveyor corresponding to the film sticking frame, and the lifting machine is configured to lift the glass panel on the conveyor to the lower surface of the film sticking frame, so that the film sticking cavity is provided between the glass panel and the film tape, and when the air in the film sticking cavity is sucked out by the negative pressure device, the film tape is attached to the glass panel.

[0006] Further, the film pasting frame includes a frame body and a connecting column, the frame body is constructed as a rectangular frame, and a step groove adapted to the size of the glass panel is provided on the side of the frame body facing the conveyor, the film pasting cavity is located on the upper side of the step groove, and the film pasting cavity and the step groove are communicated with each other, and a plurality of air holes are evenly distributed on the inner side wall of the frame body corresponding to the film pasting cavity around the periphery; The connecting column is fixed to one side of the frame, a branch airway is opened in the frame, the branch airway is connected to the plurality of air holes, a main airway is opened inside the connecting column, and the main airway is connected to the negative pressure device.

[0007] Furthermore, the conveying roller group includes a conveying roller and a detection roller that rotate relatively, the intersection of the conveying roller and the detection roller is located in the same plane as the upper plane of the film pasting frame, and a meter sensor is provided inside the detection roller for detecting the length of the film tape conveyed to the film pasting frame; Along the conveying direction of the film tape, load areas are provided on both sides of the frame corresponding to the film pasting cavity, and auxiliary rollers are provided above the load areas. The auxiliary rollers are rotatably mounted on the mounting plate and rotate in conjunction with the conveying roller group so that the film tape is attached to the upper surface of the film pasting frame during the conveying process.

[0008] Furthermore, the conveyor includes a conveyor belt and a driving roller located on the inner side of the conveyor belt, the driving roller drives the conveyor belt to circulate, the driving roller is rotatably mounted on the mounting plate, and a bracket is fixedly provided on the outer side of the driving roller.

[0009] Furthermore, a tensioning roller is provided on one side of the conveyor belt away from the film laminating frame. The tensioning roller is elastically and movably mounted on the mounting plate so that the conveyor belt is always kept tensioned. Conveyor belt guide rollers are installed on both sides of the mounting plate corresponding to the tensioning roller. The conveyor belt guide rollers are rotatably connected to the mounting plate.

[0010] Furthermore, the lifting machine includes a lifting plate and a lifting cylinder arranged on the inner side of the conveyor belt, the lifting cylinder is fixed on the side wall of the mounting plate, the lifting plate is located below the film frame, and the output end of the lifting cylinder is fixedly connected to the lifting plate through a cylinder rod, and can drive the lifting plate to reciprocate between a first position and a second position.

[0011] Furthermore, when the lifting plate is in the first position, the upper side surface of the conveyor belt is a plane, and when the glass panel is conveyed to the bottom of the film frame, the lifting cylinder drives the lifting plate to move from the first position to the second position, pushing the glass panel into the step groove.

[0012] Furthermore, it also includes a cutting machine, which is arranged between the conveying roller group and the auxiliary roller, and the cutting machine includes and, which are fixed on the side wall of the mounting plate, are located below, and are connected to the transmission, and are configured to drive the movement in a direction parallel to the axis of the auxiliary roller, and the movable path is greater than the width of the film frame.

[0013] Furthermore, the height of the film-sticking cavity is set at 3mm-5mm, the air hole is constructed as a circular hole or a rectangular hole, and the step groove is 1mm-2mm larger than the film-sticking cavity in the width direction and / or the length direction.

[0014] Furthermore, the density of the pores in the middle area is greater than the density of the pores in the edge area, the cross-section of the branch airway is set to be circular or rectangular, and the cross-sectional area of ​​the branch airway close to the main airway is greater than the cross-sectional area of ​​the branch airway away from the main airway.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: The present invention sets a film sticking frame to restrict the glass panel and the film tape at the same position, and creates a negative pressure state between the glass panel and the film tape by negative pressure attraction, so that the film tape is adsorbed on the surface of the glass panel. Compared with the film tape being attached to the glass panel by rolling with a pressure roller, bubbles, wrinkles and warping between the film tape and the glass panel in the rolling method can be avoided, so that the film tape is evenly attached to the surface of the glass panel, thereby improving the quality of film sticking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a film-applying device for a glass panel proposed in an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction; Figure 3 This is a schematic diagram of the enlarged structure of the film sticking frame from the bottom side according to an embodiment of the present invention; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the middle BB direction; Figure 5 A partially enlarged schematic diagram of a film-applying state of a film-applying device for a glass panel proposed in an embodiment of the present invention.

[0017] Among them, 01, mounting plate; 10, conveyor; 11, conveyor belt; 12, driving roller; 13, tensioning roller; 14, conveyor belt guide roller; 15, bracket; 20, film roll; 21, film guide roller; 30, conveyor roller group; 31, conveyor roller; 32, detection roller; 40, film frame; 400, film cavity; 401, load area; 41, frame; 410, air hole; 411, step groove; 412, branch air duct; 42, connecting column; 420, main air duct; 50, lifting machine; 51, lifting plate; 52, lifting cylinder; 521, cylinder rod; 60, cutting machine; 61, cutting knife; 62, linear drive; 70, auxiliary roller.

[0018] The accompanying drawings are used to provide further understanding of the embodiments and constitute a part of the specification. They are used for explanation together with the embodiments and do not constitute a limitation of the embodiments. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection.

[0020] In the description of the embodiments, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the embodiments.

[0021] like Figure 1 and Figure 2 As shown, in an embodiment of the present invention, a film laminating device for a glass panel is provided, which aims to improve the adhesion quality of the film tape on the surface of the glass panel, so as to reduce the occurrence of undesirable conditions such as bubbles, wrinkles, and warping, and improve the yield rate of the film laminating process. The device mainly includes a conveyor 10, a film tape roll 20, a conveying roller group 30 and a film laminating frame 40.

[0022] Among them, the conveyor 10 is arranged on the side wall of the mounting plate 01 and is used to convey the glass panel. The film strip roll 20 is rotatably installed on the side wall of the mounting plate 01 and is located above the conveyor 10. The conveying roller group 30 is arranged on the side wall of the mounting plate 01 and is used to pull the film strip. A film strip guide roller 21 is also provided between the film strip roll 20 and the conveying roller group 30. The film strip unwound from the film strip roll 20 is pre-guided by the film strip guide roller 21 to the same height as the conveying roller group 30, and then conveyed by the conveying roller group 30 to improve the stability of the film strip conveying.

[0023] Furthermore, a film pasting frame 40 is provided on the mounting plate 01 corresponding to the output side of the conveying roller set 30 , so that the conveying roller set 30 can convey the film tape to the upper surface of the film pasting frame 40 .

[0024] In some embodiments, the conveying roller group 30 includes a conveying roller 31 and a detection roller 32 that rotate relative to each other. The intersection of the conveying roller 31 and the detection roller 32 is located in the same plane as the upper plane of the film frame 40, wherein a driver for driving the conveying roller group 30 is provided on the back side of the mounting plate 01. The driver can adopt the cooperation of a motor and a transmission box, and can simultaneously drive the conveying roller 31 and the detection roller 32 to rotate relative to each other, so as to convey the film strip between the conveying roller 31 and the detection roller 32.

[0025] Furthermore, in order to provide film tapes of different lengths adaptably according to glass panels of different sizes, a meter sensor is provided inside the detection roller 32. The length of the conveyed film tape is calculated by the number of rotations of the detection roller 32 to detect the length of the film tape conveyed to the film sticking frame 40, and to determine whether the length of the film tape conveyed matches the glass panel.

[0026] like Figure 3 , Figure 4 and Figure 5 As shown, the inner side of the film sticking frame 40 has a film sticking cavity 400 , and the film sticking frame 40 is provided with a plurality of air holes 410 connected to the film sticking cavity 400 . The film sticking frame 40 is connected to an external negative pressure device, and the negative pressure device is configured to suck the air in the film sticking cavity 400 through the air holes 410 .

[0027] Furthermore, a lifting machine 50 is provided below the corresponding film sticking frame 40 in the conveyor 10. The lifting machine 50 is configured to lift the glass panel on the conveyor 10 to the lower surface of the film sticking frame 40, so that a closed film sticking cavity 400 is provided between the glass panel and the film strip. When the air in the film sticking cavity 400 is sucked out by the negative pressure device, the film sticking cavity 400 presents a negative pressure state, which will adsorb the relatively soft film strip to one side of the glass panel, so that the film strip is attached to the glass panel.

[0028] Compared with the method of attaching the film tape to the glass panel by rolling with a pressure roller, in this solution, by setting a film sticking frame 40, the glass panel and the film tape are restricted to the same position, and a negative pressure state is created between the glass panel and the film tape by negative pressure attraction, so that the film tape is adsorbed on the surface of the glass panel. In this way, bubbles, wrinkles and warping between the film tape and the glass panel in the rolling method can be avoided, so that the film tape is evenly attached to the surface of the glass panel, thereby improving the quality of film sticking.

[0029] like Figure 3 and Figure 4 As shown, the film pasting frame 40 is made of aluminum alloy or stainless steel, and the film pasting frame 40 includes an integrally formed frame body 41 and a connecting column 42. The frame body 41 is constructed as a rectangular frame, and a step groove 411 adapted to the size of the glass panel is provided on the side of the frame body 41 facing the conveyor 10, the film pasting cavity 400 is located on the upper side of the step groove 411, and the film pasting cavity 400 and the step groove 411 are communicated with each other, and a plurality of air holes 410 are evenly distributed on the inner wall of the frame body 41 corresponding to the film pasting cavity 400. The connecting column 42 is fixed to one side of the frame body 41, and a branch air duct 412 is opened in the frame body 41, and the branch air duct 412 is communicated with the plurality of air holes 410. A main air duct 420 is opened inside the connecting column 42, and the main air duct 420 is communicated with the negative pressure device.

[0030] When in use, the glass panel is moved upward from the lower side into the step groove 411 and is located below the film-sticking cavity 400. The film tape is transported to the upper surface of the frame 41 and covers the upper part of the film-sticking cavity 400. When the glass panel and the film tape are in place, the negative pressure device works again. Its negative pressure suction port is connected to multiple air holes 410 through the main air channel 420 and the branch air channel 412. The air inside the film-sticking cavity 400 is sucked by the multiple air holes 410 at the same time, so that the film-sticking cavity 400 presents a negative pressure state. Since the material of the film tape is relatively soft and the supporting force in the central area is the smallest, the film tape is squeezed into the film-sticking cavity 400 under the action of external air pressure. The film tape in the middle area first contacts the glass panel and then gradually diffuses to the surrounding until the film tape is completely attached to the glass panel. In this way, the film tape will not have bubbles, wrinkles, etc. during the attachment process, and the attachment quality is high.

[0031] like Figure 1 and Figure 2 As shown, along the conveying direction of the film tape, load areas 401 are provided on both sides of the frame 41 corresponding to the film pasting cavity 400, and auxiliary rollers 70 are provided above the load areas 401. The auxiliary rollers 70 are rotatably mounted on the mounting plate 01 and rotate in conjunction with the conveying roller group 30, so that the film tape is attached to the upper surface of the film pasting frame 40 during the conveying process.

[0032] It should be understood that the auxiliary roller 70 and the conveying roller group 30 share a set of drivers, and the transmission between the transmission mechanisms (such as gear transmission, belt transmission) enables the auxiliary roller 70 and the conveying roller group 30 to maintain the same linear speed to convey the film tape. After the conveying roller group 30 conveys the film tape to the upper side of the film pasting frame 40, under the action of the auxiliary roller 70, the film tape can be kept always attached to the surface of the film pasting frame 40 while being conveyed, and when the film tape is conveyed in place, both ends can also be pressed by the auxiliary roller 70 to adhere to the upper side of the film pasting frame 40, ensuring that the film tape closes the upper side of the film pasting cavity 400. When the air in the film pasting cavity 400 is sucked into a negative pressure state, the film tape can be pressed toward the glass surface by atmospheric pressure.

[0033] Furthermore, the conveyor 10 includes a conveyor belt 11 and a driving roller 12 located on the inner side of the conveyor belt 11, the driving roller 12 drives the conveyor belt 11 to circulate, the driving roller 12 is rotatably mounted on the mounting plate 01, and a bracket 15 is fixedly provided on the outer side of the driving roller 12, wherein a motor for driving the driving roller 12 to rotate is fixedly installed on the back side of the mounting plate 01, two driving rollers 12 are arranged, one of which is an active roller and the other is a driven roller, when in use, the active roller drives the driven roller on the other side to rotate, and jointly drives the outer conveyor belt 11 to perform a cyclic motion, so that the conveyor belt 11 can continuously transport the glass panel.

[0034] like Figure 5 As shown, the lifting machine 50 includes a lifting plate 51 and a lifting cylinder 52 arranged on the inner side of the conveyor belt 11. The lifting cylinder 52 is fixed on the side wall of the mounting plate 01. The lifting plate 51 is located below the film frame 40, and the output end of the lifting cylinder 52 is fixedly connected to the lifting plate 51 through a cylinder rod 521, and can drive the lifting plate 51 to reciprocate between a first position and a second position. When the lifting plate 51 is in the first position, the upper side surface of the conveyor belt 11 is a plane. When the glass panel is transported to the bottom of the film frame 40, the lifting cylinder 52 drives the lifting plate 51 to move from the first position to the second position, and pushes the glass panel into the step groove 411.

[0035] It should be understood that the device is also equipped with a detector for detecting the position of the glass panel. The detector can use a grating sensor. The grating sensor is set below the film frame 40 and uses photoelectric detection to detect the position of the glass panel. When the glass panel is below the film frame 40, the lifting cylinder 52 drives the lifting plate 51 to move upward, and lifts the glass panel upward to the step groove 411. Then the external negative pressure device extracts the air in the film cavity 400. When the film cavity 400 is sucked into a negative pressure state, the film strip can be pressed to the glass surface by atmospheric pressure to complete the film sticking work.

[0036] Furthermore, in order to compensate for the length of the conveyor belt 11 when the lifting machine 50 lifts it, a tensioning roller 13 is provided on the side of the conveyor belt 11 away from the film frame 40. The tensioning roller 13 is elastically and movably mounted on the mounting plate 01 to keep the conveyor belt 11 always tensioned. Conveyor belt guide rollers 14 are installed on both sides of the mounting plate 01 corresponding to the tensioning roller 13. The conveyor belt guide rollers 14 are rotatably connected to the mounting plate 01.

[0037] In some embodiments, the measured setting of the mounting plate 01 is used to install an elastic support for the tensioning roller 13. One end of the tensioning roller 13 can move elastically on a preset path through the elastic support to provide displacement compensation when the conveyor belt 11 is tensioned.

[0038] Furthermore, it also includes a cutter 60, which is arranged between the conveying roller group 30 and the auxiliary roller 70. The film tape between the conveying roller group 30 and the auxiliary roller 70 can be pressed and kept attached to the load area 401, so that the cutter 60 can cut the film tape more easily during cutting to avoid deformation of the film tape.

[0039] Furthermore, the cutting machine 60 includes a cutting knife 61 and a linear drive 62. The linear drive 62 is fixed on the side wall of the mounting plate 01. The cutting knife 61 is located below the linear drive 62, and the cutting knife 61 is transmission-connected to the linear drive 62. The linear drive 62 is configured to drive the cutting knife 61 to move in a direction parallel to the axis of the auxiliary roller 70. The moving path of the cutting knife 61 is greater than the width of the film frame 40.

[0040] In some embodiments, the linear drive 62 can adopt an electric or pneumatic actuator based on the principle of a screw slide structure. When in use, the linear drive 62 drives the cutting knife 61 to reciprocate in the width direction of the film tape to cut the film tape. Generally, after the film tape is cut, both ends of the film tape are rolled by auxiliary rollers 70, and then negative pressure suction is performed for attachment.

[0041] In some embodiments, the height of the film cavity 400 is set at 3mm-5mm, the air hole 410 is constructed as a circular hole or a rectangular hole, and the step groove 411 is larger than the size of the film cavity 400 by 1mm-2mm in the width direction and / or the length direction, wherein the step groove 411 can be larger than the size of the film cavity 400 by 1mm-2mm in the width direction or the length direction, or in both the length and the width direction. The height space of the film cavity 400 is the moving distance of the film strip under the negative pressure suction state. A height that is too small may cause the film strip to contact the glass panel prematurely, while a height that is too large will affect the film sticking efficiency.

[0042] Furthermore, the density of the air holes 410 in the middle area is greater than the density of the air holes 410 in the edge area, the cross-section of the branch air duct 412 is set to be circular or rectangular, and the cross-sectional area of ​​the branch air duct 412 close to the main air duct 420 is greater than the cross-sectional area of ​​the branch air duct 412 away from the main air duct 420. With such a setting, the air holes 410 in various locations can have similar air suction speeds as much as possible, so that the film strip can be evenly attached to the surface of the glass panel to improve the attachment effect.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] The above description of the implementation mode is not restrictive, and the drawings show only one of the implementation modes, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the scope of protection.

Claims

1. A film-applying device for a glass panel, characterized in that: include: A conveyor (10) is arranged on a side wall of the mounting plate (01) and is used to horizontally convey the glass panel; A film strip roll (20) is rotatably mounted on a side wall of the mounting plate (01) and is located above the conveyor (10); A conveying roller group (30) is arranged on the side wall of the mounting plate (01) and is used for pulling the film tape; Wherein, a film pasting frame (40) is provided on the mounting plate (01) at the output side corresponding to the conveying roller group (30), so that the conveying roller group (30) can convey the film tape to the upper surface of the film pasting frame (40), the inner side of the film pasting frame (40) has a film pasting cavity (400), and the film pasting frame (40) is provided with a plurality of air holes (410) connected to the film pasting cavity (400), the film pasting frame (40) is connected to an external negative pressure device, and the negative pressure device is configured to suck the film tape The air in the film pasting cavity (400) is sucked out by the negative pressure device, and a lifter (50) is provided in the conveyor (10) below the film pasting frame (40). The lifter (50) is configured to lift the glass panel on the conveyor (10) to the lower surface of the film pasting frame (40), so that the film pasting cavity (400) is provided between the glass panel and the film strip. When the air in the film pasting cavity (400) is sucked out by the negative pressure device, the film strip is adhered to the glass panel.

2. The film sticking device for glass panel according to claim 1, characterized in that: The film pasting frame (40) comprises a frame body (41) and a connecting column (42); the frame body (41) is constructed as a rectangular frame, and a step groove (411) adapted to the size of the glass panel is provided on a side of the frame body (41) facing the conveyor (10); the film pasting cavity (400) is located on the upper side of the step groove (411), and the film pasting cavity (400) and the step groove (411) are communicated with each other; and a plurality of air holes (410) are evenly distributed on the inner side wall of the frame body (41) corresponding to a circumference of the film pasting cavity (400); The connecting column (42) is fixed to one side of the frame (41); a branch air duct (412) is provided in the frame (41); the branch air duct (412) is communicated with the plurality of air holes (410); a main air duct (420) is provided inside the connecting column (42); the main air duct (420) is communicated with the negative pressure device.

3. The film-applying device for glass panels according to claim 2, characterized in that: The conveying roller group (30) comprises a conveying roller (31) and a detection roller (32) which rotate relative to each other, the intersection of the conveying roller (31) and the detection roller (32) being located on the upper plane of the film laminating frame (40) and being located in the same plane, and a meter sensor is provided inside the detection roller (32) for detecting the length of the film tape conveyed to the film laminating frame (40); Along the conveying direction of the film tape, the frame (41) is provided with load areas (401) on both sides corresponding to the film pasting cavity (400), and an auxiliary roller (70) is provided above the load area (401). The auxiliary roller (70) is rotatably mounted on the mounting plate (01) and rotates in conjunction with the conveying roller group (30) so that the film tape is adhered to the upper surface of the film pasting frame (40) during the conveying process.

4. The film-applying device for glass panels according to claim 2, characterized in that: The conveyor (10) comprises a conveyor belt (11) and a driving roller (12) located on the inner side of the conveyor belt (11), wherein the driving roller (12) drives the conveyor belt (11) to circulate and transport, the driving roller (12) is rotatably mounted on the mounting plate (01), and a bracket (15) is fixedly provided on the outer side of the driving roller (12).

5. The film sticking device for glass panel according to claim 4, characterized in that: A tensioning roller (13) is provided on the side of the conveyor belt (11) away from the film laminating frame (40). The tensioning roller (13) is elastically and movably mounted on the mounting plate (01) so that the conveyor belt (11) is always kept tensioned. Conveyor belt guide rollers (14) are mounted on both sides of the mounting plate (01) corresponding to the tensioning roller (13). The conveyor belt guide rollers (14) are rotatably connected to the mounting plate (01).

6. The film-applying device for glass panels according to claim 5, characterized in that: The lifting machine (50) includes a lifting plate (51) and a lifting cylinder (52) arranged on the inner side of the conveyor belt (11); the lifting cylinder (52) is fixed on the side wall of the mounting plate (01); the lifting plate (51) is located below the film frame (40); and the output end of the lifting cylinder (52) is fixedly connected to the lifting plate (51) via a cylinder rod (521), and can drive the lifting plate (51) to reciprocate between a first position and a second position.

7. The film-applying device for glass panels according to claim 6, characterized in that: When the lifting plate (51) is in the first position, the upper side surface of the conveyor belt (11) is a plane, and when the glass panel is conveyed to the bottom of the film laminating frame (40), the lifting cylinder (52) drives the lifting plate (51) to move from the first position to the second position, pushing the glass panel into the step groove (411).

8. The film-applying device for glass panels according to claim 1, characterized in that: The invention also includes a cutting machine (60), wherein the cutting machine (60) is arranged between the conveying roller group (30) and the auxiliary roller (70), and the cutting machine (60) includes a cutting knife (61) and a linear drive (62). The linear drive (62) is fixed on the side wall of the mounting plate (01), and the cutting knife (61) is located below the linear drive (62). The cutting knife (61) is connected to the linear drive (62) by transmission. The linear drive (62) is configured to drive the cutting knife (61) to move in a direction parallel to the axis of the auxiliary roller (70), and the movable path of the cutting knife (61) is greater than the width of the film frame (40).

9. The film-applying device for glass panels according to claim 2, characterized in that: The height of the film sticking cavity (400) is set at 3 mm-5 mm, the air hole (410) is configured as a circular hole or a rectangular hole, and the step groove (411) is 1 mm-2 mm larger than the film sticking cavity (400) in the width direction and / or the length direction.

10. The film sticking device for glass panel according to claim 9, characterized in that: The density of the pores (410) located in the middle area is greater than the density of the pores (410) in the edge area, the cross-section of the branch airway (412) is set to be circular or rectangular, and the cross-sectional area of ​​the branch airway (412) close to the main airway (420) is greater than the cross-sectional area of ​​the branch airway (412) away from the main airway (420).

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