Adhesive film connecting device

Abstract

The utility model provides an adhesive film connecting device which comprises a material changing part provided with two adhesive film material roll tensioning shafts used for loading a first adhesive film roll and a second adhesive film roll respectively. The traction part is used for pulling the adhesive film to be conveyed in the feeding direction; the cutting part and the adhesive film connecting part are located on an adhesive film feeding path between the traction part and the material changing part, the cutting part is provided with a cutting assembly, the cutting assembly is used for cutting a first adhesive film sent out by the first adhesive film roll to form a to-be-connected end, and the adhesive film connecting part is used for connecting the to-be-connected end with the traction end of a second adhesive film sent out by the second adhesive film roll into a whole. According to the utility model, the cutting part is used for cutting the tail section of the first adhesive film roll to form the end to be connected, and the adhesive film connecting part is used for connecting the pull-out end of the second adhesive film roll with the end to be connected into a whole, so that the second adhesive film does not need to be manually distributed in the prior art, the replacement steps and the replacement time consumption of the adhesive film are reduced, and the production efficiency is improved. The operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic module processing technical field, concretely relates to a glue film connecting device. BACKGROUND

[0002] In the battery string processing, the welding band needs to be pre-bonded by the glue film, and the welding band is connected with the battery piece through the laminating process. The glue film needs to be transported by the transportation structure and provided with the traction force by the glue film traction structure before contacting with the welding band. Because the glue film on the glue film roll is limited in length, the glue film roll needs to be replaced regularly in the processing of the battery string.

[0003] The existing replacement mode of the glue film roll is that after the glue film on the previous glue film roll is used up, the remaining glue film roll is replaced with a new glue film roll, the new glue film roll is rewound (the glue film is pulled and wound in one piece) on the glue film traction structure and the transportation structure, and the replacement of the glue film roll is completed. This replacement mode needs the glue film in the previous glue film roll to pass through the transportation structure and the traction structure, then the glue film in the new glue film roll is manually pulled out and rewound on the transportation structure and the traction structure, which leads to complicated replacement steps of the glue film roll and long time consumption in replacing the glue film roll. UTILITY MODEL CONTENTS

[0004] The glue film connecting device designed in the utility model can at least partially solve the above problems.

[0005] The utility model discloses a glue film connecting device, which comprises a device support, and the device support is provided with:

[0006] The material replacing part has two glue film roll tensioning shafts for loading the first glue film roll and the second glue film roll respectively.

[0007] The traction part is used for pulling the glue film of any one of the glue film rolls in the material replacing part along the feeding direction.

[0008] The cutting part and the glue film connecting part are both on the glue film feeding path between the traction part and the material replacing part, wherein the cutting part has a cutting assembly for cutting the first glue film sent out by the first glue film roll to form a to-be-connected end, and the glue film connecting part is used for connecting the to-be-connected end and the pulled end of the second glue film sent out by the second glue film roll into one.

[0009] In some embodiments, the adhesive film connecting part comprises a welding member, a first suction structure for suctioning the first adhesive film, and a second suction structure for suctioning the second adhesive film, wherein the first suction structure comprises a first suction plate with first vacuum suction holes, the second suction structure comprises a second suction plate with second vacuum suction holes, and the welding member is used to weld the to-be-connected end positioned by the first suction plate and the pulled-out end positioned by the second suction plate into one body.

[0010] In some embodiments, the second suction plate is further formed with a welding groove on a side thereof facing the second adhesive film, and the welding member comprises a welding plate and a first heating strip in the welding plate, wherein the welding plate has a welding surface capable of being accommodated in the welding groove.

[0011] In some embodiments, the welding member further comprises a third driving cylinder, and an elastic member is clamped between the driving end of the third driving cylinder and the welding plate.

[0012] In some embodiments, the cutting assembly comprises a cutting knife and a cutting plate spaced apart from and opposite to the cutting knife, the cutting knife is capable of being controlled to move close to or away from the cutting plate, and a cutting path of the cutting knife when cutting the first adhesive film partially coincides with a telescopic path of the third driving cylinder.

[0013] In some embodiments, the adhesive film connecting part further comprises a guide slide rail, a first driving cylinder, and a second driving cylinder, the first suction structure and the second suction structure are both in sliding connection with the guide slide rail, and the first driving cylinder is connected with the first suction structure and the second driving cylinder is connected with the second suction structure to drive the second suction plate and the first suction plate to move close to or away from each other.

[0014] In some embodiments, the cutting assembly has a first position and a second position, when the cutting assembly is in the first position, the cutting knife can be on a feeding path of the first adhesive film, and when the cutting assembly is in the second position, the cutting knife is out of the feeding path of the first adhesive film; and / or the cutting assembly comprises a knife seat for fixing the cutting knife, and the knife seat is provided with a second heating strip.

[0015] In some embodiments, the device support has a first side and a second side arranged oppositely, wherein the adhesive film connecting part is connected to the first side, the cutting part further comprises a telescopic cylinder for driving the cutting assembly to switch between the first position and the second position, and when the cutting assembly is in the first position, the cutting assembly is on the side of the first side away from the second side, and when the cutting assembly is in the second position, the cutting assembly is on the side of the second side away from the first side.

[0016] In some embodiments, the device support further has a detection part arranged on the first adhesive film or the second adhesive film supply path between the adhesive film connecting part and the traction part to monitor the adhesive film state of the first adhesive film roll or the second adhesive film roll; and / or the material changing part comprises a material changing rotating arm and a material changing motor for driving the material changing rotating arm to rotate, and two adhesive film roll tensioning shafts are respectively arranged at two ends of the material changing rotating arm.

[0017] In some embodiments, guide wheels are arranged on the adhesive film supply path between the material changing part and the detection part and / or the detection part and the traction part; and / or the traction part comprises a traction wheel, an outer cylindrical surface of the traction wheel is formed with a plurality of annular grooves arranged along the axial direction, and a plurality of third vacuum suction holes are arranged in each annular groove.

[0018] The adhesive film connecting device of the utility model:

[0019] When the first adhesive film on the first adhesive film roll is used up, the last section of the first adhesive film roll can be cut by the cutting part to form a to-be-connected end, and the adhesive film connecting part is used to connect the traction end of the second adhesive film roll in the material changing part and the to-be-connected end to form a whole, and then the traction part is controlled to continue traction to realize continuous supply of adhesive film, without manually arranging the second adhesive film on each related mechanism as in the prior art, thereby reducing the adhesive film replacement steps and time consumption and improving the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective structural schematic view of the adhesive film connecting device of the utility model embodiment under one visual angle;

[0021] Figure 2 is Figure 1 a partial enlarged view of A in the utility model embodiment;

[0022] Figure 3 is Figure 1 a front view of the utility model embodiment;

[0023] Figure 4 is Figure 3 a partial enlarged view of B in the utility model embodiment;

[0024] Figure 5 is Figure 3 a cross-sectional view of C-C in the middle;

[0025] Figure 6 is Figure 3 a cross-sectional view of D-D in the middle;

[0026] Figure 7 is a schematic diagram of the adhesive film connecting device in another perspective view of the embodiment of the utility model;

[0027] Figure 8 is a schematic diagram of the adhesive film connecting device in another perspective view of the embodiment of the utility model;

[0028] Figure 9 is Figure 8 a local enlarged view of C in the middle;

[0029] Figure 10 is a schematic diagram of the second adsorption plate in the adhesive film connecting device in the embodiment of the utility model.

[0030] in the figure:

[0031] 100, material changing part; 101, first adhesive film roll; 102, second adhesive film roll; 103, adhesive film material roll tensioning shaft; 11, material changing rotating arm; 12, material changing motor; 200, traction part; 21, traction wheel; 211, annular groove; 22, traction motor; 300, cutting part; 31, cutting knife; 32, cutting plate; 33, knife seat; 331, second heating strip; 34, telescopic air cylinder; 400, adhesive film connecting part; 41, first adsorption structure; 411, first vacuum adsorption hole; 412, first adsorption plate; 42, second adsorption structure; 421, second vacuum adsorption hole; 422, second adsorption plate; 423, fusion groove; 43, fusion piece; 431, fusion plate; 432, first heating strip; 433, third driving air cylinder; 434, elastic piece; 44, guide slide rail; 451, first driving air cylinder; 452, second driving air cylinder; 500, detection part; 51, connecting plate; 52, tensioning wheel; 53, connecting shaft; 54, shaft seat; 55, photoelectric sensor; 56, tensioning motor; 61, guide wheel; 700, device support. DETAILED DESCRIPTION

[0032] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations can be implemented in any of various forms, and are not limited to the specific implementations described herein; rather, specific implementations are provided as example to convey the substance of the present patent to the skilled person. In the drawings, the thicknesses of regions and layers are exaggerated for clarity. Wherever possible, like reference numerals are used throughout the drawings to refer to like components. Detailed descriptions of well-known methods, reflective films, and the like are not provided as to not obscure the present patent.

[0033] The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the patent. One skilled in the relevant art will recognize, however, that the various implementations of the patent can be practiced without one or more of the specific details, or with other methods, components, reflective films, etc. In other instances, well-known structures, reflective films, or operations have not been shown or described in detail to avoid obscuring aspects of the patent.

[0034] The following example describes an embodiment of the film connecting device of the present patent, which is only a part of the embodiments of the present patent, but the protection scope of the present patent is not limited to this. All other embodiments obtained by those skilled in the art without creative labor should be covered within the protection scope of the present patent.

[0035] Please refer to Figures 1 to 10 According to the embodiment of the present patent, a film connecting device is provided, which comprises a device support 700, and the device support 700 is provided with: a material changing part 100, which has two film material roll tensioning shafts 103 for loading a first film roll 101 and a second film roll 102 respectively. It can be understood that the first film roll 101 and the second film roll 102 are used alternately, so that when the film on one of the film rolls, i.e. the first film, is used up, the film on the second film roll 102, i.e. the second film, is used, thereby forming continuous supply of film. Figure 3 The cutting part 300 and the film connecting part 400 are both on the film supply path between the pulling part 200 and the material changing part 100, wherein the cutting part 300 has a cutting assembly (not labeled in the figure), which is used to cut the first film sent out by the first film roll 101 to form a to-be-connected end (not labeled and not shown in the figure) on the downstream side of the supply direction, and the film connecting part 400 is used to connect the to-be-connected end and the pulled-out end (not labeled and not shown in the figure) of the second film sent out by the second film roll 102 into one.

[0036] In the technical solution, when the first adhesive film on the first adhesive film roll 101 is used up, the tail end of the first adhesive film roll 101 can be cut by the cutting part 300 to form a to-be-connected end, and the pulling-out end of the second adhesive film roll 102 in the material replacing part 100 is connected to the to-be-connected end by the adhesive film connecting part 400, and then the traction part 200 continues to pull to realize continuous feeding of the adhesive film. The second adhesive film does not need to be manually arranged on each related mechanism as in the prior art, the adhesive film replacement steps and time consumption are reduced, and the work efficiency is improved.

[0037] The adhesive film connecting part 400 can connect the new and old adhesive films by pasting or welding. In a preferred embodiment, the adhesive film connecting part 400 includes a welding part 43, a first adsorption structure 41 for adsorbing the first adhesive film, and a second adsorption structure 42 for adsorbing the second adhesive film. The first adsorption structure 41 includes a first adsorption plate 412 with first vacuum adsorption holes 411, and the second adsorption structure 42 includes a second adsorption plate 422 with second vacuum adsorption holes 421. In specific use, the first adsorption structure 41 and the second adsorption structure 42 are connected to a vacuum suction source (not shown in the figure, such as a vacuum pump), so that negative pressure is generated in the corresponding vacuum adsorption holes, thereby reliably adsorbing the first adhesive film or the second adhesive film on them. The welding part 43 is used to weld the to-be-connected end positioned by the first adsorption plate 412 and the pulling-out end positioned by the second adsorption plate 422.

[0038] In the technical solution, the first adsorption structure 41 and the second adsorption structure 42 respectively have vacuum adsorption holes to reliably adsorb and position the to-be-connected end and the pulling-out end on them, and then the first adhesive film and the second adhesive film are overlapped and overlapped by the welding part 43 to form welding (i.e., fused into one after heating and melting), which is simple in structure and convenient to realize.

[0039] The first adsorption plate 412 and the second adsorption plate 422 can have the same structure, and in a preferred embodiment, the second adsorption plate 422 further has a welding groove 423 formed on the side facing the second adhesive film. The welding member 43 includes a welding plate 431 and a first heating strip 432 in the welding plate 431. The welding plate 431 has a welding surface that can be accommodated in the welding groove 423. The first heating strip 432 can be, for example, a power generation resistance wire. In a more preferred embodiment, the groove wall of the welding groove 423 is provided with a temperature-resistant anti-sticking layer to prevent the first adhesive film and the second adhesive film from sticking to the second adsorption plate 422 in a molten state during welding. In this technical solution, the welding groove 423 matching the welding surface of the welding plate 431 is arranged on the second adsorption plate 422 to ensure the position stability of the corresponding overlapping part of the first adhesive film and the second adhesive film during hot melting, thereby ensuring the welding quality.

[0040] In some embodiments, the welding member 43 further includes a third drive cylinder 433, and an elastic member 434 is clamped between the driving end (not shown in the figure) of the third drive cylinder 433 and the welding plate 431. It can be understood that the third drive cylinder 433 is used to drive the welding member 43 to move towards or away from the feeding path of the adhesive film. In this technical solution, the elastic member 434 (such as a coil spring) is arranged between the driving end of the third drive cylinder 433 and the welding plate 431 to enable the welding plate 431 to flexibly contact the second adsorption plate 422 before welding, thereby preventing damage to the adhesive film caused by rigid contact. It can be understood that the welding member 43 is connected to the device support 700 through the third drive cylinder 433.

[0041] In a specific embodiment, the cutting assembly includes a cutting knife 31 and a cutting plate 32 arranged opposite to and spaced from the cutting knife 31. The cutting plate 32 has a cutting groove, and the cutting edge of the cutting knife 31 can be controlled to extend into the cutting groove. The cutting knife 31 can be controlled to move towards or away from the cutting plate 32, and the cutting path of the cutting knife 31 during cutting of the first adhesive film partially coincides with the extension and retraction path of the third drive cylinder 433, so that the cutting knife 31 can cut the first adhesive film while the third drive cylinder 433 is in the retracted state. Figure 1 The shown orientation is a reference, that is, the lifting direction of the cutting knife 31 and the extension and retraction direction of the third drive cylinder 433 are both in the vertical direction and substantially coincide, which can ensure that the position of the to-be-connected end formed is substantially the same as the welding position, thereby ensuring the smooth welding.

[0042] In some embodiments, the adhesive film connecting part 400 further comprises a guide slide rail 44, a first driving cylinder 451 and a second driving cylinder 452, the first and second adsorption structures 41 and 42 are both in sliding connection with the guide slide rail 44, and the first driving cylinder 451 is connected with the first adsorption structure 41 and the second driving cylinder 452 is connected with the second adsorption structure 42 to drive the second adsorption plate 422 and the first adsorption plate 412 to approach or move away from each other.

[0043] In the technical solution, the first and second adsorption structures 41 and 42 share the same guide slide rail 44, so that the relative position between the two is accurate and stable. In the specific use process, the first and second driving cylinders 451 and 452 are controlled to realize the reciprocating linear motion of the first and second adsorption structures 41 and 42 in the guide direction of the guide slide rail 44, which is simple to control and has high position accuracy. The high position accuracy can ensure the accuracy and stability of the relative position between the two adhesive films respectively adsorbed on the two adsorption structures, thereby ensuring the reliable welding of the adhesive films. It can be understood that when the adhesive film needs to be connected, the first and second adsorption structures 41 and 42 are controlled to move towards each other, and after the connection is completed, the two are controlled to move away from each other, i.e. away from the adhesive film supply path, to prevent contact with the adhesive film.

[0044] In some embodiments, the cutting assembly has a first position and a second position, when the cutting assembly is in the first position, the cutting knife 31 can be in the feeding path of the first adhesive film to achieve cutting of the first adhesive film, when the cutting assembly is in the second position, the cutting knife 31 is out of the feeding path of the first adhesive film to avoid contact with the first adhesive film, so as to prevent the mechanism interference between the cutting assembly and the adhesive film connecting part 400, especially the welding part 43 thereof, so that the device structure is more compact and reasonable. In a specific embodiment, the device support 700 has a first side and a second side arranged opposite to each other, wherein the adhesive film connecting part 400 is connected to the first side, the cutting part 300 further comprises a telescopic cylinder 34 for driving the cutting assembly to switch between the first position and the second position, and when the cutting assembly is in the first position, the cutting assembly is on the side of the first side away from the second side, when the cutting assembly is in the second position, the cutting assembly is on the side of the second side away from the first side, that is, the cutting assembly has a working state of being stretched out of the area where the first side is located and a avoiding state of being retracted into the area where the second side is located, to ensure the switching between cutting and avoiding the welding part 43, so that the structure design of the device is more reasonable, and the cutting film can be moved away from the feeding path of the adhesive film without cutting the adhesive film, preventing the adhesive film from being accidentally cut due to moving away from the cutting knife 31.

[0045] The cutting assembly comprises a knife seat 33 for fixing the cutting knife 31, and a second heating strip 331 is arranged in the knife seat 33, and the second heating strip 331 can also be a heating resistance wire. In this technical solution, the second heating strip 331 is arranged in the knife seat 33 to heat the cutting knife 31 to cut the adhesive film in a hot cutting manner, which can ensure the smoothness of the cutting of the adhesive film. The knife seat 33, the cutting knife 31 and the cutting plate 32 form the cutting assembly as a whole, and specifically, the three are assembled on a plate (not marked in the figure) at the same time, so that the telescopic cylinder 34 can drive the position of the cutting assembly to move and switch. It can be understood that the cutting knife 31 and the knife seat 33 are controlled by corresponding cutting driving parts (such as a driving cylinder) to move linearly and reciprocally towards or away from the cutting plate 32, and the cutting part 300 is assembled on the device support 700 via the telescopic cylinder 34.

[0046] In some embodiments, the device support 700 is further provided with a detection part 500, which is located on the feeding path of the first or second adhesive film between the adhesive film connecting part 400 and the traction part 200 to monitor the adhesive film state of the first or second adhesive film roll 101 or 102, i.e. whether the adhesive film on the first or second adhesive film roll 101 or 102 is exhausted. When the detection part 500 detects that the adhesive film on the corresponding adhesive film roll is exhausted, it will generate a corresponding signal feedback to the corresponding control part of the device, so as to control the traction part 200 and other related parts to stop running, and prompt the adhesive film replacement process.

[0047] In a specific embodiment, the detection part 500 includes a connecting plate 51, a tensioning wheel 52, a connecting shaft 53, a shaft seat 54, a photoelectric sensor 55, and a tensioning motor 56. The first end of the connecting plate 51 is connected with the tensioning wheel 52, the middle part of the connecting plate 51 is connected with the connecting shaft 53, the connecting shaft 53 is rotatably connected with the shaft seat 54, the shaft seat 54 is assembled on the device support 700, and the moving path of the second end of the connecting plate 51 is within the detection range of the photoelectric sensor 55. During the normal transportation of the adhesive film, the tensioning motor 56 can drive the connecting shaft 53 to rotate, so as to adjust the position of the tensioning wheel 52, so that the adhesive film remains in a tight state. When the tensioning motor 56 adjusts the position of the tensioning wheel 52, the moving path of the second end of the connecting plate 51 does not pass through the photoelectric sensor 55 (i.e. is outside the detection range of the photoelectric sensor 55). When the adhesive film on the adhesive film roll (e.g. the first adhesive film roll 101) is transported (i.e. the first adhesive film on the first adhesive film roll 101 is exhausted), the spool of the adhesive film cooperates with the traction part 200 to increase the stress on the adhesive film, and the tensioning wheel 52 is stressed, so that the connecting shaft 53 rotates on the shaft seat 54, the connecting plate 51 rotates, and the second end of the connecting plate 51 passes through the photoelectric sensor 55. The photoelectric sensor 55 generates a photoelectric signal, and the traction part 200 receives the photoelectric signal to stop traction of the adhesive film. In this way, the transportation of the adhesive film can be automatically detected and stopped in time when the adhesive film roll is exhausted, which can facilitate timely receiving of the adhesive film and improve production efficiency.

[0048] The replacement part 100 includes a replacement rotating arm 11 and a replacement motor 12 for driving the replacement rotating arm 11 to rotate, and the two adhesive film roll tensioning shafts 103 are respectively located at the two ends of the replacement rotating arm 11. In this technical solution, the replacement motor 12 drives the replacement rotating arm 11 to rotate by a certain angle (e.g. 180°) to realize the position exchange of the new and old adhesive film rolls. It should be noted that the position exchange action of the new and old adhesive film rolls should be performed after the cutting part 300 cuts the adhesive film on the old adhesive film roll and the first suction structure 41 suctions the adhesive film. The adhesive film roll tensioning shaft 103 can be an inflatable shaft or the like, so as to facilitate quick disassembly and assembly of the roll.

[0049] The traction part 200 comprises a traction wheel 21 and a traction motor 22, the outer cylindrical surface of the traction wheel 21 is formed with a plurality of annular grooves 211 arranged at intervals along the axial direction, a plurality of third vacuum suction holes (not shown and not referenced in the figure) are arranged at intervals in each annular groove 211, the traction motor 22 is used to drive the traction wheel 21 to rotate, the third vacuum suction holes on the traction wheel 21 are connected with a vacuum pump, the third vacuum suction holes can adsorb the adhesive film on the outer cylindrical surface and form an included angle, and the adhesive film is formed to be tractioned for feeding.

[0050] The traction motor 22, the tensioning motor 56 and the material changing motor 12 described above can adopt a direct driving mode or a transmission structure (for example, a structure in which a transmission belt and a belt wheel are matched), and the utility model is not particularly limited.

[0051] In some embodiments, a guide wheel 61 is arranged on the adhesive film feeding path between the material changing part 100 and the detection part 500 and / or between the detection part 500 and the traction part 200, so as to realize planning of the adhesive film feeding path.

[0052] It is easy for those skilled in the art to understand that the advantageous technical features of the above-mentioned modes can be freely combined and superimposed without conflict.

[0053] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and the utility model can have various changes and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A film bonding device, characterized in that, The device support (700) is provided with: The material changing part (100) has two film roll tensioning shafts (103) for loading the first film roll (101) and the second film roll (102) respectively; The traction part (200) is used for conveying the film of any film roll in the material changing part (100) along the feeding direction; The cutting part (300) and the film connecting part (400) are both on the film feeding path between the traction part (200) and the material changing part (100), wherein the cutting part (300) has a cutting assembly for cutting the first film sent by the first film roll (101) to form a connecting end, and the film connecting part (400) is used for connecting the connecting end and the traction end of the second film sent by the second film roll (102) into one.

2. The film attachment device of claim 1, wherein The film connecting part (400) includes a welding member (43), a first adsorption structure (41) for adsorbing the first film, and a second adsorption structure (42) for adsorbing the second film, wherein the first adsorption structure (41) includes a first adsorption plate (412) having first vacuum adsorption holes (411), the second adsorption structure (42) includes a second adsorption plate (422) having second vacuum adsorption holes (421), and the welding member (43) is used for welding the connecting end positioned by the first adsorption plate (412) and the traction end positioned by the second adsorption plate (422) into one.

3. The film attachment device of claim 2, wherein The second adsorption plate (422) further has a welding groove (423) on the side surface facing the second film, the welding member (43) includes a welding plate (431) and a first heating strip (432) in the welding plate (431), and the welding plate (431) has a welding surface capable of being accommodated in the welding groove (423).

4. The film attachment device of claim 3, wherein The welding member (43) further includes a third driving air cylinder (433), and an elastic member (434) is clamped between the driving end of the third driving air cylinder (433) and the welding plate (431).

5. The film attachment device of claim 4, wherein The cutting assembly includes a cutting knife (31) and a cutting plate (32) arranged in a spaced and opposite manner with the cutting knife (31), the cutting knife (31) can be controlled to move close to or away from the cutting plate (32), and the cutting path of the cutting knife (31) when cutting the first film partially coincides with the extension and retraction path of the third driving air cylinder (433).

6. The film attachment device of claim 2, wherein The film connecting part (400) further includes a guide slide rail (44), a first driving air cylinder (451), and a second driving air cylinder (452), the first adsorption structure (41) and the second adsorption structure (42) are both in sliding connection with the guide slide rail (44), and the first driving air cylinder (451) is connected with the first adsorption structure (41), and the second driving air cylinder (452) is connected with the second adsorption structure (42) to drive the second adsorption plate (422) and the first adsorption plate (412) to move close to or away from each other.

7. The film attachment device of claim 1, wherein The cutting assembly has a first position and a second position, when the cutting assembly is in the first position, the cutting knife (31) can be in the feeding path of the first adhesive film, when the cutting assembly is in the second position, the cutting knife (31) is out of the feeding path of the first adhesive film; And / or, the cutting assembly includes a knife seat (33) for fixing the cutting knife (31), and the knife seat (33) is provided with a second heating strip (331) therein.

8. The film attachment of claim 7, wherein, The device support (700) has a first side and a second side arranged oppositely, wherein the adhesive film connecting part (400) is connected to the first side, the cutting part (300) further includes a telescopic air cylinder (34) for driving the cutting assembly to switch between the first position and the second position, and when the cutting assembly is in the first position, the cutting assembly is on the side away from the second side of the first side, and when the cutting assembly is in the second position, the cutting assembly is on the side away from the first side of the second side.

9. The film attachment of claim 1, wherein The device support (1) is further provided with a detection part (500), which is on the feeding path of the first adhesive film or the second adhesive film between the adhesive film connecting part (400) and the traction part (200) to monitor the adhesive film state of the first adhesive film roll (101) or the second adhesive film roll (102); and / or, the material changing part (100) includes a material changing rotating arm (11) and a material changing motor (12) for driving the material changing rotating arm (11) to rotate, and two adhesive film roll tensioning shafts (103) are respectively arranged at two ends of the material changing rotating arm (11).

10. The film attachment device of claim 9, wherein The adhesive film feeding path between the material changing part (100) and the detection part (500) and / or the detection part (500) and the traction part (200) is provided with a guide wheel (61); and / or, the traction part (200) includes a traction wheel (21), and a plurality of annular grooves (211) are formed on the outer cylindrical surface of the traction wheel (21) and are arranged along the axial direction, and a plurality of third vacuum suction holes are arranged in each annular groove (211).

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