Film lifting mechanism and film laminating equipment

Abstract

The utility model belongs to the technical field of laminating of cover films, and relates to a film lifting mechanism and film laminating equipment. The film lifting mechanism comprises a first fixing frame, a film lifting rolling piece and a rotation limiting assembly, the film lifting rolling piece is rotationally connected to the first fixing frame, and the film lifting rolling piece is used for adsorbing a cover film; the rotation limiting assembly comprises a rotation limiting driving piece and a limiting piece, the rotation limiting driving piece is installed on the first fixing frame, and the output end of the rotation limiting driving piece is connected with the limiting piece. The rotation limiting driving piece is used for driving the limiting piece to do reciprocating motion between the unlocking position and the rotation limiting position used for limiting rotation of the film lifting rolling piece. According to the film lifting mechanism, the film lifting effect of the film lifting mechanism can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of film lamination technology, and in particular relates to a film lifting mechanism and a film laminating device. Background Technology

[0002] In modern manufacturing, flexible printed circuit boards (FPCs) are important electronic components, consisting of a flexible insulating substrate and printed circuitry fabricated on it. To protect the printed circuitry, a protective film is usually applied to its surface; this is the FPC cover film. The quality of the FPC cover film's initial lift determines the success of subsequent film removal and application.

[0003] The main component of existing film-lifting mechanisms is the adhesive roller. When the adhesive roller presses down on the FPC cover film, it uses the static electricity generated under pressure and its own slight adhesive force to attract the cover film. Controlling the horizontal movement of the adhesive roller can promote the separation of the FPC cover film from the backing paper, completing the film-lifting action. However, after the film-lifting action is completed, when the adhesive roller separates from the FPC cover film, the rotation of the adhesive roller will cause wrinkles and overlaps in the FPC cover film that has separated from the backing paper, which will damage the film-lifting effect and affect the subsequent use of the FPC cover film. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in the prior art, when the adhesive roller separates from the FPC cover film, the rotation of the adhesive roller will cause the FPC cover film that has been separated from the backing paper to wrinkle and overlap. This utility model provides a film lifting mechanism and a laminating device.

[0005] To solve the above-mentioned technical problems, on the one hand, this utility model provides a film-forming mechanism, including a first fixed frame, a film-forming rolling element, and a rotation limiting component. The film-forming rolling element is rotatably connected to the first fixed frame and is used to adsorb the covering film.

[0006] The rotation limiting component includes a rotation limiting drive and a limiting member. The rotation limiting drive is mounted on the first fixed frame, and the output end of the rotation limiting drive is connected to the limiting member. The rotation limiting drive is used to drive the limiting member to reciprocate between the unlocked position and the rotation limiting position used to limit the rotation of the film-forming rolling member.

[0007] According to the film-lifting mechanism of this utility model embodiment, during film lifting, the rotation-limiting drive drives the limiting member to move to the unlocked position. At this time, the film-lifting roller can rotate relative to the first fixed frame to perform the film lifting action, separating the cover film from the backing paper. After the film lifting action is completed, the rotation-limiting drive drives the limiting member to move to the limited rotation position to lock the film-lifting roller. This restricts the rotation of the film-lifting roller when it separates from the cover film, preventing wrinkles or overlaps in the cover film that has separated from the backing paper due to the rotation of the film-lifting roller, thus improving the film lifting effect of the film-lifting mechanism.

[0008] Optionally, the film-forming rolling element includes a first connecting rod, a second connecting rod, and a rolling element body connected between the first connecting rod and the second connecting rod;

[0009] The first fixing frame includes a first side plate, a second side plate, and a mounting main plate connected between the first side plate and the second side plate. The first connecting rod is rotatably connected to the first side plate, and the second connecting rod is rotatably connected to the second side plate.

[0010] The rotation-limiting drive component is mounted on the first side plate and / or the second side plate.

[0011] Optionally, the first end of the first connecting rod is connected to the first end of the rolling element body, and the second end of the first connecting rod extends out from the side of the first side plate facing away from the second side plate;

[0012] The first end of the second connecting rod is connected to the second end of the rolling element body, and the second end of the second connecting rod extends out of the side of the second side plate facing away from the first side plate;

[0013] In the limited rotation position, the limiting member abuts against the second end of the first connecting rod, and / or, in the limited rotation position, the limiting member abuts against the second end of the second connecting rod.

[0014] Optionally, the limiting member is provided with a limiting groove on the side facing the film-forming rolling member;

[0015] At the limited rotation position, the limited rotation groove engages with the film-forming rolling element.

[0016] Optionally, the rotation limiting component includes a first rotation limiting component and a second rotation limiting component;

[0017] The unlocking positions include a first unlocking position and a second unlocking position;

[0018] The rotation limit position includes a first limit position and a second limit position;

[0019] The first rotation limiting component includes a first rotation limiting drive and a first limiting member. The first rotation limiting drive is mounted on the first side plate, and the output end of the first rotation limiting drive is connected to the first limiting member. The first rotation limiting drive is used to drive the first limiting member to reciprocate between a first unlocked position and a first rotation limiting position for limiting the rotation of the film-forming rolling member.

[0020] The second rotation limiting component includes a second rotation limiting drive and a second limiting member. The second rotation limiting drive is mounted on the second side plate, and the output end of the second rotation limiting drive is connected to the second limiting member. The second rotation limiting drive is used to drive the second limiting member to reciprocate between a second unlocked position and a second rotation limiting position for limiting the rotation of the film-forming rolling member.

[0021] Optionally, the limiting groove includes a first limiting groove and a second limiting groove;

[0022] The first limiting member is provided with a first rotation limiting groove on the side facing the first connecting rod, and the first rotation limiting groove is engaged with the second end of the first connecting rod at the first rotation limiting position;

[0023] The second limiting member is provided with a second rotation limiting groove on the side facing the second connecting rod, and the second rotation limiting groove is engaged with the second end of the second connecting rod at the second rotation limiting position.

[0024] Optionally, the film-forming mechanism further includes a first driving component, the output end of which is connected to the first fixed frame, and the first driving component is used to drive the first fixed frame to move along a first direction.

[0025] Optionally, the film-forming mechanism further includes a motion mechanism, a worktable, and a base;

[0026] The first drive assembly is mounted on the motion mechanism and is used to drive the film-forming rolling element on the first fixed frame to move relative to the motion mechanism in a first direction. The axis of the film-forming rolling element extends in a second direction.

[0027] The motion mechanism is mounted on the base and is used to drive the film-forming rolling element on the first fixed frame to move upward in a third direction.

[0028] The workbench is mounted on the base and is used to place the stacked cover film and backing paper.

[0029] The first direction, the second direction, and the third direction intersect each other.

[0030] Optionally, the motion mechanism includes a second drive assembly and a second fixed frame. The second fixed frame is slidably connected to the base along the third direction. The second drive assembly is mounted on the base. The output end of the second drive assembly is connected to the second fixed frame. The second drive assembly is used to drive the second fixed frame to slide relative to the base.

[0031] The first drive component is mounted on the second mounting bracket.

[0032] On the other hand, this utility model embodiment provides a film coating device, which includes the above-mentioned film-lifting mechanism.

[0033] According to the laminating device of this utility model embodiment, during film lifting, the rotation limiting drive drives the limiting member to move to the first unlocked position. At this time, the film lifting roller can rotate relative to the first fixed frame to perform the film lifting action, separating the cover film from the backing paper. After the film lifting action is completed, the rotation limiting drive drives the limiting member to move to the first limited rotation position to lock the film lifting roller. This restricts the rotation of the film lifting roller when it separates from the cover film, preventing wrinkles or overlaps in the cover film that has separated from the backing paper due to the rotation of the film lifting roller, thus improving the film lifting effect of the film lifting mechanism. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of a film-forming mechanism provided in an embodiment of the present invention;

[0035] Figure 2 yes Figure 1 A diagram showing the workbench and base removed;

[0036] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0037] Figure 4 yes Figure 2 A schematic diagram from another angle.

[0038] The reference numerals in the accompanying drawings are as follows:

[0039] 1. First mounting bracket; 11. First side plate; 12. Second side plate; 13. Main board mounting plate;

[0040] 2. Film-forming rolling element; 21. First connecting rod; 22. Second connecting rod; 23. Rolling element body; 24. First clamping sleeve; 25. Second clamping sleeve;

[0041] 3. Rotation limiting component; 3a. First rotation limiting component; 3b. Second rotation limiting component; 31. Rotation limiting drive component; 31a. First rotation limiting drive component; 31b. Second rotation limiting drive component; 32. Limiting component; 32a. First limiting component; 32b. Second limiting component; 321. Rotation limiting groove; 321a. First rotation limiting groove;

[0042] 4. Second fixing bracket; 41. Slider;

[0043] 5. First drive assembly; 51. First drive component; 52. Guide component;

[0044] 6. Workbench;

[0045] 7. Base; 71. Slide rail;

[0046] 8. Second drive component;

[0047] z, first direction; x, second direction; y, third direction. Detailed Implementation

[0048] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0049] like Figures 1 to 4 As shown, the film-forming mechanism provided in this embodiment includes a first fixed frame 1, a film-forming rolling element 2, and a rotation-limiting component 3. The film-forming rolling element 2 is rotatably connected to the first fixed frame 1 and is used to adsorb the covering film. The film-forming rolling element 2 is preferably a film-forming roller.

[0050] The rotation limiting component 3 includes a rotation limiting drive 31 and a limiting component 32. The rotation limiting drive 31 is mounted on the first fixed frame 1, and the output end of the rotation limiting drive 31 is connected to the limiting component 32. The rotation limiting drive 31 is used to drive the limiting component 32 to reciprocate between the unlocked position and the rotation limiting position used to limit the rotation of the film rolling component 2.

[0051] In the unlocked position, the limiting member 32 is away from the film-forming rolling member 2, and the film-forming rolling member 2 can rotate relative to the first fixed frame 1.

[0052] In the limited rotation position, the limiting member 32 can abut against the film-forming rolling member 2, and the film-forming rolling member 2 is locked to the first fixed frame 1.

[0053] The film-lifting mechanism provided in this embodiment of the invention, during film lifting, the rotation-limiting drive 31 drives the limiting member 32 to the unlocked position. At this time, the film-lifting roller 2 can rotate relative to the first fixed frame 1. Through electrostatic adsorption generated under pressure and its own micro-adhesive force, it adsorbs the cover film, performing the film lifting action and separating the cover film from the backing paper. After the film lifting action is completed, the rotation-limiting drive 31 drives the limiting member 32 to the limited rotation position to lock the film-lifting roller 2. This restricts the rotation of the film-lifting roller 2 when it separates from the cover film, preventing wrinkles and overlaps in the cover film that has separated from the backing paper due to the rotation of the film-lifting roller 2, thus improving the film lifting effect of the mechanism. This film-lifting mechanism is compact, simple, easy to manufacture and install, and has low production cost.

[0054] In one embodiment, such as Figure 2 and Figure 3 As shown, the film-forming rolling element 2 includes a first connecting rod 21, a second connecting rod 22, and a rolling element body 23 connected between the first connecting rod 21 and the second connecting rod 22. The rolling element body 23 is used to adsorb the covering film.

[0055] The first fixing frame 1 includes a first side plate 11, a second side plate 12, and a mounting main plate 13 connected between the first side plate 11 and the second side plate 12. The first connecting rod 21 is rotatably connected to the first side plate 11, and the second connecting rod 22 is rotatably connected to the second side plate 12, so as to realize the rotatable connection of the film rolling member 2 on the first fixing frame 1.

[0056] The rotation limiting drive component 31 is installed on the first side plate 11 and / or the second side plate 12 to realize the installation of the first rotation limiting drive component 31 on the first fixed frame 1.

[0057] In one embodiment, such as Figure 2 and Figure 3 As shown, the first end of the first connecting rod 21 is connected to the first end of the rolling element body 23, and the second end of the first connecting rod 21 extends out from the side of the first side plate 11 facing away from the second side plate 12.

[0058] The first end of the second connecting rod 22 is connected to the second end of the rolling element body 23, and the second end of the second connecting rod 22 extends out of the second side plate 12 on the side facing away from the first side plate 11.

[0059] In the limited rotation position, the limiting member 32 abuts against the second end of the first connecting rod 21 to lock the rotation of the first connecting rod 21, thereby locking the film-forming rolling member 2. Alternatively, in the limited rotation position, the limiting member 32 abuts against the second end of the second connecting rod 22 to lock the rotation of the second connecting rod 22, thereby locking the film-forming rolling member 2.

[0060] In one embodiment, such as Figure 3As shown, the limiting member 32 is provided with a limiting groove 321 on the side facing the film rolling member 2.

[0061] At the limited rotation position, the limited rotation groove 321 engages with the film-forming rolling element 2, thereby achieving the contact between the limited element 32 and the film-forming rolling element 2.

[0062] In one embodiment, such as Figure 3 As shown, the second end of the first connecting rod 21 can be fitted with a first clamping sleeve 24, which can be made of a material with high friction.

[0063] The second end of the second connecting rod 22 may be fitted with a second clamping sleeve 25, which may be made of a material with high friction.

[0064] In the limited rotation position, the limiting member 32 can abut against the first locking sleeve 24 to lock the rotation of the first connecting rod 21, thereby locking the film-forming rolling member 2. Alternatively, in the limited rotation position, the limiting member 32 can abut against the second locking sleeve 25 to lock the rotation of the second connecting rod 22, thereby locking the film-forming rolling member 2.

[0065] In one embodiment, such as Figure 3 As shown, the rotation limiting drive 31 is a rotation limiting cylinder. The cylinder barrel of the rotation limiting cylinder is installed on the first fixed frame 1. The piston rod of the rotation limiting cylinder is connected to the limiting member 32, so as to realize the driving of the rotation limiting drive 31 on the limiting member 32.

[0066] In one embodiment, such as Figure 4 As shown, the rotation limiting component 3 includes a first rotation limiting component 3a and a second rotation limiting component 3b.

[0067] The unlocking positions include a first unlocking position and a second unlocking position.

[0068] The rotation limit positions include a first limit position and a second limit position.

[0069] The first rotation limiting component 3a includes a first rotation limiting drive 31a and a first limiting member 32a. The first rotation limiting drive 31a is mounted on the first side plate 11, and the output end of the first rotation limiting drive 31a is connected to the first limiting member 32a. The first rotation limiting drive 31a is used to drive the first limiting member 32a to reciprocate between the first unlocked position and the first rotation limiting position used to limit the rotation of the film rolling member 2.

[0070] In the first unlocked position, the first limiting member 32a is away from the film-lifting roller 2, and the film-lifting roller 2 can rotate relative to the first fixed frame 1 to achieve separation of the cover film and the backing paper.

[0071] In the first limited rotation position, the first limiting member 32a can abut against the first connecting rod 21 of the film-lifting roller 2, and the film-lifting roller 2 is locked to the first fixing frame 1. This prevents the film-lifting roller 2 from wrinkling or overlapping due to the rotation of the film-lifting roller 2 when it separates from the cover film.

[0072] The second rotation limiting component 3b includes a second rotation limiting drive 31b and a second limiting member 32b. The second rotation limiting drive 31b is mounted on the second side plate 12, and the output end of the second rotation limiting drive 31b is connected to the second limiting member 32b. The second rotation limiting drive 31b is used to drive the second limiting member 32b to reciprocate between the second unlocked position and the second rotation limiting position used to limit the rotation of the film rolling member 2.

[0073] In the second unlocked position, the second limiting member 32b is away from the film-lifting roller 2, and the film-lifting roller 2 can rotate relative to the first fixing frame 1 to achieve separation of the cover film and the backing paper.

[0074] In the second limited rotation position, the second limiting member 32b can abut against the second connecting rod 22 of the film-lifting roller 2, and the film-lifting roller 2 is locked to the first fixing frame 1. This prevents the film-lifting roller 2 from wrinkling or overlapping due to the rotation of the film-lifting roller 2 when it separates from the cover film.

[0075] In one embodiment, such as Figure 4 As shown, the rotation limiting slot 321 includes a first rotation limiting slot 321a and a second rotation limiting slot.

[0076] The first limiting member 32a is provided with a first limiting groove 321a on the side facing the first connecting rod 21. The first limiting groove 321a is engaged with the second end of the first connecting rod 21 at the first limiting position.

[0077] The second limiting member 32b is provided with a second limiting groove on the side facing the second connecting rod 22, and the second limiting groove is engaged with the second end of the second connecting rod 22 at the second limiting position.

[0078] In one embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, the film-forming mechanism also includes a first driving component 5. The output end of the first driving component 5 is connected to the first fixed frame 1. The first driving component 5 is used to drive the first fixed frame 1 to move along the first direction z.

[0079] The first fixed frame 1 is driven to move along the first direction z by the first driving component 5, so that the film-lifting rolling element 2 on the first fixed frame 1 can move closer to or away from the covering film.

[0080] In one embodiment, such as Figure 2 and Figure 4 As shown, the first drive assembly 5 includes a first drive member 51, which is connected to the first fixed frame 1. The first drive member 51 is used to drive the first fixed frame 1 to move along the first direction z, so that the film-lifting rolling member 2 on the first fixed frame 1 can move closer to or further away from the covering film.

[0081] In one embodiment, the first driving element 51 may be a cylinder to realize its driving function.

[0082] In one embodiment, such as Figure 1 As shown, the film-forming mechanism also includes a motion mechanism, a worktable 6, and a base 7.

[0083] The first drive assembly 5 is mounted on the motion mechanism. The first drive assembly 5 is used to drive the film-forming rolling member 2 on the first fixed frame 1 to move relative to the motion mechanism along the first direction z. The axis of the film-forming rolling member 2 extends along the second direction x.

[0084] The motion mechanism is mounted on the base 7 and is used to drive the film-forming rolling element 2 on the first fixed frame 1 to move in the third direction y.

[0085] The workbench 6 is mounted on the base 7. The workbench 6 is used to place the stacked cover film and backing paper, with the cover film located on the side of the backing paper facing away from the workbench 6.

[0086] The first direction z, the second direction x, and the third direction y intersect each other.

[0087] When the film-lifting roller 2 moves along the first direction z toward the worktable 6, the rotation-limiting drive 31 drives the limiting member 32 to move to the unlocked position, so that the film-lifting roller 2 can rotate relative to the first fixed frame 1 to perform the film-lifting action and separate the cover film from the backing paper.

[0088] When the film-lifting roller 2 moves away from the worktable 6 along the first direction z, the rotation-limiting drive 31 drives the limiting member 32 to move to the rotation-limiting position to restrict the rotation of the film-lifting roller 2. When the film-lifting roller 2 separates from the cover film, it avoids wrinkles and overlaps in the cover film that has separated from the backing paper due to the rotation of the film-lifting roller 2.

[0089] In one embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, the motion mechanism includes a second drive assembly 8 and a second fixed frame 4. The second fixed frame 4 is slidably connected to the base 7 along the third direction y. The second drive assembly 8 is mounted on the base 7. The output end of the second drive assembly 8 is connected to the second fixed frame 4. The second drive assembly 8 is used to drive the second fixed frame 4 to slide relative to the base 7.

[0090] The first drive assembly 5 is mounted on the second mounting bracket 4.

[0091] The second fixed frame 4 and the worktable 6 are arranged opposite each other along the first direction z. When the first fixed frame 1 moves relative to the second fixed frame 4 along the first direction z, the film-forming rolling element 2 moves along the first direction z towards or away from the worktable 6.

[0092] When the film-lifting rolling element 2 comes into contact with the cover film, the second driving component 8 drives the second fixing frame 4 to slide relative to the base 7 in the third direction y, thereby separating the cover film from the backing paper.

[0093] In one embodiment, the second drive component 8 may be a lead screw module to realize its drive function. In other embodiments, the second drive component may also be selected from other structures, as long as it can realize the corresponding drive function.

[0094] In one embodiment, such as Figure 2 and Figure 4 As shown, the first drive assembly 5 also includes a guide member 52, which is slidably connected to the second fixed frame 4 along the first direction z, and the first fixed frame 1 is connected to the guide member 52.

[0095] The guide member 52 can guide the movement of the first fixed frame 1 along the first direction z, and prevent the first fixed frame 1 from deviating along the first direction z.

[0096] In one embodiment, the guide member 52 may be a bearing that cooperates with the guide shaft. The bearing is mounted on the second fixed frame 4, and the guide shaft and the bearing are slidably engaged. The first fixed frame 1 is connected to the guide shaft.

[0097] In one embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, the base 7 is provided with a slide rail 71 extending along the third direction y, and the second fixed frame 4 is provided with a slider 41. The slider 41 is slidably connected to the slide rail 71 to realize the relative sliding between the second fixed frame 4 and the base 7.

[0098] In one embodiment, such as Figures 1 to 4 As shown, the first direction z is the height direction, and the second and third directions x and y are the horizontal directions. Specifically, the second direction x is the width direction of the worktable 6, and the second direction y is the length direction of the worktable 6.

[0099] The film-coating device provided in this embodiment includes the film-lifting mechanism provided in the above embodiment.

[0100] The laminating device provided in this embodiment of the invention, during film lifting, the rotation-limiting drive 31 drives the limiting member 32 to the unlocked position. At this time, the film lifting roller 2 can rotate relative to the first fixed frame 1. Through electrostatic adsorption generated under pressure and its own micro-adhesive force, it adsorbs the cover film, performing the film lifting action and separating the cover film from the backing paper. After the film lifting action is completed, the rotation-limiting drive 31 drives the limiting member 32 to the limited rotation position to lock the film lifting roller 2. This restricts the rotation of the film lifting roller 2 when it separates from the cover film, preventing wrinkles and overlaps in the cover film that has separated from the backing paper due to the rotation of the film lifting roller 2, thus improving the film lifting effect of the film lifting mechanism. This film lifting mechanism is compact, simple, easy to manufacture and install, and has low production cost.

[0101] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A film-forming mechanism, characterized in that, It includes a first fixed frame, a film-raising roller, and a rotation limiting assembly. The film-raising roller is rotatably connected to the first fixed frame and is used to adsorb the covering film. The rotation limiting component includes a rotation limiting drive and a limiting member. The rotation limiting drive is mounted on the first fixed frame, and the output end of the rotation limiting drive is connected to the limiting member. The rotation limiting drive is used to drive the limiting member to reciprocate between the unlocked position and the rotation limiting position used to limit the rotation of the film-forming rolling member.

2. The film-forming mechanism according to claim 1, characterized in that, The film-forming rolling element includes a first connecting rod, a second connecting rod, and a rolling element body connected between the first connecting rod and the second connecting rod; The first fixing frame includes a first side plate, a second side plate, and a mounting main plate connected between the first side plate and the second side plate. The first connecting rod is rotatably connected to the first side plate, and the second connecting rod is rotatably connected to the second side plate. The rotation-limiting drive component is mounted on the first side plate and / or the second side plate.

3. The film-forming mechanism according to claim 2, characterized in that, The first end of the first connecting rod is connected to the first end of the rolling element body, and the second end of the first connecting rod extends out from the side of the first side plate facing away from the second side plate; The first end of the second connecting rod is connected to the second end of the rolling element body, and the second end of the second connecting rod extends out of the side of the second side plate facing away from the first side plate; In the limited rotation position, the limiting member abuts against the second end of the first connecting rod, and / or, in the limited rotation position, the limiting member abuts against the second end of the second connecting rod.

4. The film-forming mechanism according to claim 2, characterized in that, The limiting member is provided with a limited rotating groove on the side facing the film-forming rolling member; At the limited rotation position, the limited rotation groove engages with the film-forming rolling element.

5. The film-forming mechanism according to claim 4, characterized in that, The rotation limiting component includes a first rotation limiting component and a second rotation limiting component; The unlocking positions include a first unlocking position and a second unlocking position; The rotation limit position includes a first limit position and a second limit position; The first rotation limiting component includes a first rotation limiting drive and a first limiting member. The first rotation limiting drive is mounted on the first side plate, and the output end of the first rotation limiting drive is connected to the first limiting member. The first rotation limiting drive is used to drive the first limiting member to reciprocate between a first unlocked position and a first rotation limiting position for limiting the rotation of the film-forming rolling member. The second rotation limiting component includes a second rotation limiting drive and a second limiting member. The second rotation limiting drive is mounted on the second side plate, and the output end of the second rotation limiting drive is connected to the second limiting member. The second rotation limiting drive is used to drive the second limiting member to reciprocate between a second unlocked position and a second rotation limiting position for limiting the rotation of the film-forming rolling member.

6. The film-forming mechanism according to claim 5, characterized in that, The rotation limiting groove includes a first rotation limiting groove and a second rotation limiting groove; The first limiting member is provided with a first rotation limiting groove on the side facing the first connecting rod, and the first rotation limiting groove is engaged with the second end of the first connecting rod at the first rotation limiting position; The second limiting member is provided with a second rotation limiting groove on the side facing the second connecting rod, and the second rotation limiting groove is engaged with the second end of the second connecting rod at the second rotation limiting position.

7. The film-forming mechanism according to claim 1, characterized in that, The film-forming mechanism further includes a first driving component, the output end of which is connected to the first fixed frame, and the first driving component is used to drive the first fixed frame to move along a first direction.

8. The film-forming mechanism according to claim 7, characterized in that, The film-forming mechanism also includes a motion mechanism, a worktable, and a base; The first drive assembly is mounted on the motion mechanism and is used to drive the film-forming rolling element on the first fixed frame to move relative to the motion mechanism in a first direction. The axis of the film-forming rolling element extends in a second direction. The motion mechanism is mounted on the base and is used to drive the film-forming rolling element on the first fixed frame to move upward in a third direction. The workbench is mounted on the base and is used to place the stacked cover film and backing paper. The first direction, the second direction, and the third direction intersect each other.

9. The film-forming mechanism according to claim 8, characterized in that, The motion mechanism includes a second drive component and a second fixed frame. The second fixed frame is slidably connected to the base along the third direction. The second drive component is mounted on the base. The output end of the second drive component is connected to the second fixed frame. The second drive component is used to drive the second fixed frame to slide relative to the base. The first drive component is mounted on the second mounting bracket.

10. A coating device, characterized in that, Includes the film-forming mechanism as described in any one of claims 1-9.

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