CN113478801B

CN113478801B - Film pasting mechanism

Info

Publication number: CN113478801B
Application number: CN202110804479.4A
Authority: CN
Inventors: 周超群
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Bozhon Precision Industry Technology Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2023-06-20
Anticipated expiration: 2041-07-16
Also published as: CN113478801A

Abstract

The application relates to a film sticking mechanism, this film sticking mechanism includes: a base; the film stripping knife is arranged on the base; the roller is arranged on the base, can swing relative to the base, and is used for setting a protective film; and one end of the elastic piece is connected with the roller, the other end of the elastic piece is connected with the base, and the elastic piece is used for driving the roller to contact with a product to be laminated. In this application, utilize the rotation of product to realize that film sticking mechanism treats film sticking product surface laminating protection film all around, simplified film sticking mechanism's structure to reduce film sticking mechanism's manufacturing cost, be convenient for user's operation and use simultaneously. One end of the elastic piece is connected with the roller, the other end of the elastic piece is connected with the base, and the roller is kept in close contact with the surface of a product to be laminated under the action of the elastic piece, so that the laminating quality of the laminating mechanism is improved.

Description

Film pasting mechanism

Technical Field

The application relates to the technical field of film sticking, in particular to a film sticking mechanism.

Background

The film pasting mechanism is automatic equipment for pasting a protective film on the surface of a product. In general, in order to paste the protection film to the surface around the product, the pad pasting mechanism can be along X axle, Y axle, Z axle motion for the product to realize the purpose to different surface laminating protection films of product, but this kind of pad pasting mechanism structure is complicated, and in the in-process that pad pasting mechanism moved for the product, the protection film is far away with the pending pad pasting surface distance of product, easily takes place risks such as protection film deviation, reduces pad pasting quality of pad pasting mechanism.

Disclosure of Invention

The application provides a film sticking mechanism, this film sticking mechanism simple structure, and the protection film is hugged closely with the product surface in the film sticking process, and film sticking quality is high.

The application provides a pad pasting mechanism, this pad pasting mechanism includes:

a base;

the film stripping knife is arranged on the base;

the roller is arranged on the base, can swing relative to the base, and is used for setting a protective film;

and one end of the elastic piece is connected with the roller, the other end of the elastic piece is connected with the base, and the elastic piece is used for driving the roller to contact with a product to be laminated.

In this application, utilize the rotation of product to realize that film sticking mechanism treats film sticking product surface laminating protection film all around, simplified film sticking mechanism's structure to reduce film sticking mechanism's manufacturing cost, be convenient for user's operation and use simultaneously. One end of the elastic piece is connected with the roller, the other end of the elastic piece is connected with the base, and the roller is kept in close contact with the surface of a product to be laminated under the action of the elastic piece, so that the laminating quality of the laminating mechanism is improved.

In one possible design, the film pasting mechanism comprises a mounting frame, the mounting frame is mounted on the base, the film peeling knife and the roller are mounted on the base through the mounting frame, and the mounting frame can rotate relative to the base so as to drive the roller and the film peeling knife to swing relative to the base;

one end of the elastic piece is connected with the roller through the mounting frame.

In one possible design, the film attachment mechanism further includes a shaft mounted to the base, the mounting bracket is mounted to the base via the shaft, and the mounting bracket is capable of swinging about the shaft relative to the base.

In one possible design, the one end that the pivot was kept away from to the mounting bracket is provided with the locating part, and pad pasting mechanism includes the base, and pedestal mounting has the stopper, and the locating part can with the stopper butt to the swing angle of limiting the mounting bracket about the pivot.

In one possible design, the end of the mounting frame away from the rotating shaft is further provided with a fixed block, the fixed block is provided with a rotating wheel, the rotating wheel is in contact with the limiting block, and when the mounting frame swings around the rotating shaft, the rotating wheel moves along with the mounting frame and rotates relative to the fixed block.

In one possible design, the stop includes an extension that positions the wheel between the extension and the bottom wall of the stop.

In one possible design, the film sticking mechanism further comprises a cylinder mounted on the base, and the limiting block is mounted on the cylinder, wherein the cylinder can drive the limiting block to move.

In one possible design, the base includes a body member and a lifting block movable relative to the body member along a height direction of the film attachment mechanism to adjust the height of the film attachment mechanism.

In one possible design, the stripping knife is provided with a first plane and a second plane, wherein an included angle exists between the first plane and the second plane;

the first plane and the second plane are in arc transition, and the arc forms the cutting edge of the film peeling knife.

In one possible design, the film stripping knife is provided with a film adjusting plate which can move relative to the film stripping knife along the height direction of the film pasting mechanism so as to adjust the mounting position of the protective film on the film stripping knife.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

FIG. 1 is a schematic view of a film sticking mechanism according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the stripping knife in FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective;

fig. 5 is a schematic structural diagram of the stripping knife in fig. 3 after the template is removed.

Reference numerals:

1-stripping a film cutter;

11-a first plane;

12-a second plane;

13-cutting edge;

14-adjusting a template;

141-a third mounting hole;

142-a limiting part;

15-fourth mounting holes;

16-limit matching parts;

2-a roller;

3-an elastic member;

4-mounting frames;

41-limiting parts;

42-fixing blocks;

43-a rotating wheel;

5-rotating shaft;

6, a base;

61-limiting blocks;

611-an extension;

62-body member;

621-a first mounting hole;

63-lifting blocks;

631-a second mounting hole;

7-cylinder;

71-a mobile platform;

72-pushing rod;

8-detecting device.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Detailed Description

For a better understanding of the technical solutions of the present application, embodiments of the present application are described in detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

The embodiment of the application provides a film sticking mechanism, as shown in fig. 1 and fig. 2, the film sticking mechanism includes: a base (not shown); the film peeling knife 1 is arranged on the base; the roller 2 is arranged on the base, the roller 2 can swing relative to the base, and the roller 2 and the film peeling knife 1 are used for setting a protective film; and one end of the elastic piece 3 is connected with the roller 2, the other end of the elastic piece 3 is connected with the base, and the elastic piece 3 is used for driving the roller 2 to contact with a product to be laminated.

In this embodiment, the film peeling knife 1 is used for peeling the base paper of the protective film, so that the protective film is adhered to the surface of the product to be adhered. When the film pasting mechanism is installed, at least part of the protective film stretches out of the film peeling knife 1 and is placed on the roller 2 after the base paper is peeled off by the film peeling knife 1, when the protective film is pasted on the surface of a product to be pasted by the film pasting mechanism, the product to be pasted is in close contact with the roller 2, so that the protective film on the roller 2 is closely attached to the surface of the product to be pasted, at the moment, the product to be pasted is controlled to rotate, and the protective film is pulled out of the film peeling knife 1 by the product to be pasted on the peripheral surface of the product to be pasted. In the embodiment, the film pasting mechanism is used for pasting the protective film on the peripheral surface of the product to be pasted by utilizing the rotation of the product, so that the structure of the film pasting mechanism is simplified, the production cost of the film pasting mechanism is reduced, and the operation and the use of a user are facilitated. Because the distance between the surface to be pasted with the film and the rotating shaft 5 of the product is different, the product to be pasted with the film can drive the roller 2 to swing relative to the base in the process of autorotation of the product to be pasted with the film, so that the distance between the roller 2 and the rotating shaft 5 of the product to be pasted with the film is continuously changed along with the appearance of the product, the surface of the roller 2 and the product to be pasted with the film is kept in a tightly pasting state, the film pasting quality is prevented from being influenced by the distance between the roller 2 and the surface of the product to be pasted with the film, and the service performance and the working stability of the film pasting mechanism are improved. The elastic piece 3 is arranged, one end of the elastic piece 3 is connected with the roller 2, the other end of the elastic piece is connected with the base, when the roller 2 is driven by a film pasting product to move in the direction away from the rotating shaft 5 of the film pasting product, the elastic piece 3 stretches to generate resilience force, when the size of a product between the rotating shaft 5 of the film pasting product and the roller 2 is reduced, the roller 2 moves in the direction close to the rotating shaft 5 of the film pasting product under the control of the resilience force of the elastic piece 3, so that the roller 2 is in tight contact with the surface of the film pasting product, the elastic piece 3 is arranged, the roller 2 can be conveniently in tight contact with the surface of the film pasting product, the structure of the film pasting mechanism is simplified, the operation of a user is convenient, and the use experience of the user is improved.

Specifically, as shown in fig. 1, the film pasting mechanism comprises a mounting frame 4, the mounting frame 4 is mounted on a base, the film peeling knife 1 and the roller 2 are mounted on the base through the mounting frame 4, and the mounting frame 4 can rotate relative to the base so as to drive the roller 2 and the film peeling knife 1 to swing relative to the base; one end of the elastic member 3 is connected with the roller 2 through the mounting frame 4.

In this application, shell membrane sword 1 and gyro wheel 2 all install in the support, can be convenient for shell the installation of membrane sword 1 and gyro wheel 2, simplify the structure of shell membrane sword 1 and gyro wheel 2 installation to reduce manufacturing cost. When the product to be laminated rotates, the roller 2 swings relative to the base under the drive of the product to be laminated, so that the mounting frame 4 swings relative to the base, and the film peeling knife 1 swings relative to the base, so that the relative positions of the roller 2, the film peeling knife 1 and the mounting frame 4 are not changed, and the mounting stability of the roller 2 and the mounting frame 4, the film peeling knife 1 and the mounting frame 4 is improved; simultaneously, gyro wheel 2 and shell membrane sword 1 and all install in mounting bracket 4 for gyro wheel 2 and shell membrane sword 1 swing for the base simultaneously, guaranteed the stability of relative position between gyro wheel 2 and the membrane sword 1, prevent that the relative position from changing between gyro wheel 2 and the membrane sword 1 and lead to the protection film between gyro wheel 2 and the membrane sword 1 to tear or curl, thereby prolonged the life of protection film, promoted the pad pasting quality of pad pasting mechanism, and then promoted the performance of pad pasting mechanism. One end of the elastic piece 3 is connected with the roller 2 through the mounting frame 4, so that the connection mode of the elastic piece 3 and the roller 2 is simplified, and the production cost is reduced; meanwhile, the elastic piece 3 is prevented from being directly connected with the roller 2 to damage the protective film on the roller 2, so that the service life of the protective film is further prolonged, and the film pasting quality of the film pasting mechanism is further improved.

Wherein, in the film sticking device working process, the roller 2 rotates relative to the mounting frame 4. When the product to be pasted drives the protection film to move relative to the film stripping knife 1, the roller 2 rotates relative to the mounting frame 4 under the action of friction force of the protection film, so that rolling friction is generated between the roller 2 and the protection film, friction force between the roller 2 and the protection film is reduced, damage to the protection film caused by overlarge friction force between the roller 2 and the protection film is prevented, the service life of the protection film is prolonged, and the service performance of the film pasting device is improved.

More specifically, as shown in fig. 1 and 2, the film sticking mechanism further includes a rotation shaft 5, the rotation shaft 5 is mounted to the base, the mount 4 is mounted to the base through the rotation shaft 5, and the mount 4 is capable of swinging about the rotation shaft 5 with respect to the base.

In this embodiment, the mounting bracket 4 swings around the rotating shaft 5, so that the stability of the swinging of the mounting bracket 4 can be increased, and the problem that the roller 2 interferes with a product to be laminated to cause safety is avoided due to unsmooth swinging of the mounting bracket 4, so that the service lives of the roller 2 and the mounting bracket 4 are prolonged, and the working stability and the use safety of the film laminating mechanism are improved. The mounting frame 4 is mounted on the base through the rotating shaft 5, so that the connection mode among the mounting frame 4, the rotating shaft 5 and the base is simplified, the structural complexity of the film pasting mechanism is reduced, and the production cost of the film pasting mechanism is reduced.

More specifically, as shown in fig. 1 and 2, the end of the mounting frame 4 away from the rotation shaft 5 is provided with a stopper 41, the film attaching mechanism includes a base 6, the base 6 is provided with a stopper 61, and the stopper 41 can abut against the stopper 61 to restrict the swinging angle of the mounting frame 4 around the rotation shaft 5.

In this embodiment, in the process of swinging the mounting frame 4 around the rotating shaft 5, the limiting piece 41 is abutted against the limiting block 61, so as to limit the swinging angle of the mounting frame 4, prevent the excessive swinging angle of the mounting frame 4 from increasing the installation space of the film pasting mechanism, thereby facilitating the installation and use of the film pasting mechanism and increasing the application range of the film pasting mechanism.

More specifically, as shown in fig. 1 and 2, the end of the mounting frame 4 away from the rotating shaft 5 is further provided with a fixed block 42, the fixed block 42 is provided with a rotating wheel 43, the rotating wheel 43 is in contact with the stopper 61, and when the mounting frame 4 swings around the rotating shaft 5, the rotating wheel 43 follows the mounting frame 4 and rotates relative to the fixed block 42.

In this embodiment, the mounting frame 4 is provided with the fixed block 42 and the rotating wheel 43, and the rotating wheel 43 contacts with the limiting block 61, so that the rotating wheel 43 and the fixed block 42 play a role in supporting the mounting frame 4, and the mounting frame 4 is prevented from being deformed in the use process due to the suspension of one end of the mounting frame 4 far away from the rotating shaft 5, so that the use strength of the mounting frame 4 is improved, and the service life of the mounting frame 4 is prolonged; simultaneously, set up fixed block 42, can be convenient for the installation of runner 43 to increase the distance between mounting bracket 4 and the stopper 61, make mounting bracket 4 keep the level in installation and use, prevent that mounting bracket 4 slope from leading to the protection film to paste and cover the position offset, thereby promoted the accuracy of pad pasting mechanism work. The runner 43 contacts with the stopper 61 and can roll on the stopper 61, when the mounting bracket 4 revolutes the pivot 5, the runner 43 removes for the stopper 61 under the drive of mounting bracket 4, simultaneously, the runner 43 rotates for the stopper 61 under the effect of the frictional force between runner 43 and the stopper 61, thereby produce sliding friction between runner 43 and the stopper 61, and then reduce the frictional force when the mounting bracket 4 revolutes the pivot 5 and swing, avoid the frictional force between mounting bracket 4 and the stopper 61 too big and lead to the mounting bracket 4, stopper 61 and pivot 5 wearing and tearing seriously, thereby extension mounting bracket 4, stopper 61 and pivot 5's life.

More specifically, as shown in fig. 1, the stopper 61 includes an extension 611, and the extension 611 holds the wheel 43 between the extension 611 and the bottom wall of the stopper 61.

In this embodiment, the rotating wheel 43 is limited between the extending portion 611 and the bottom wall of the limiting block 61, so that the contact stability of the rotating wheel 43 and the limiting block 61 can be increased, and the unstable swinging of the mounting frame 4 caused by the separation of the rotating wheel 43 and the limiting block 61 in the mounting or using process of the mounting frame 4 is prevented, so that the swinging stability of the mounting frame 4 around the rotating shaft 5 is improved.

In this embodiment, the extension portion 611 and the stopper 61 are separately arranged and fixedly connected, so that the processing of the extension portion 611 is facilitated, and the production cost of the extension portion 611 is reduced; meanwhile, the cantilever length of the limiting block 61 is reduced, so that the strength of the extension portion 611 is improved, and the service life of the limiting block 61 is prolonged.

Specifically, as shown in fig. 1 and 2, the film sticking mechanism further includes an air cylinder 7, the air cylinder 7 is mounted on the base 6, the stopper 61 is mounted on the air cylinder 7, and the air cylinder 7 can drive the stopper 61 to move.

In the present embodiment, the air cylinder 7 includes a moving platform 71 and a push rod 72, and the stopper 61 is mounted on the moving platform 71. When the film pasting mechanism stops working, the push rod 72 of the air cylinder 7 moves towards the inside of the air cylinder 7, the moving platform 71 moves towards the moving direction of the push rod 72, and the limiting block 61 moves towards the direction away from the product under the drive of the moving platform 71 because the limiting block 61 is arranged on the moving platform 71, after the limiting block 61 is abutted with the limiting piece 41, the limiting piece 41 moves towards the direction away from the product under the drive of the limiting block 61, so that the mounting frame 4 is driven to swing towards the direction away from the product around the rotating shaft 5, and then the roller 2 and the film peeling knife 1 are driven to move towards the direction away from the product, so that the roller 2 is separated from the product, and the disassembly of the product and the installation of the next product are facilitated. Therefore, the cylinder 7 is arranged, separation of the roller 2 and a product can be facilitated, the roller 2 and the product are prevented from being closely contacted to influence disassembly and replacement of the product, and therefore the service performance of the film pasting mechanism is improved, and meanwhile, user operation is simplified, and the use experience of a user is improved.

More specifically, as shown in fig. 1 and 2, the base 6 includes a body member 62 and a lifting block 63, and the lifting block 63 is movable relative to the body member 62 in the height direction of the film sticking mechanism to adjust the height of the film sticking mechanism.

In this embodiment, the base 6 is provided with the body member 62 and the lifting block 63, and when the film pasting mechanism is installed and operated, the user can control the lifting block 63 to move relative to the body member 62 along the height direction of the film pasting mechanism according to the requirement, so as to adjust the height of the film pasting mechanism, and make the protective film on the roller 2 and the film peeling knife 1 be the same as the product in height, so that the accuracy of the pasting position of the protective film can be improved, and meanwhile, the application range of the film pasting mechanism can be increased.

As shown in fig. 1 and 2, the body member 62 is provided with a first mounting hole 621, the lifting block 63 is provided with a second mounting hole 631, and a fastener passes through the first mounting hole 621 and the second mounting hole 631 to achieve connection of the lifting block 63 with the body member 62, wherein the first mounting hole 621 is larger in size than the second mounting hole 631 in the moving direction of the lifting block 63 so as to facilitate adjustment of the mounting position of the lifting block 63. This structure simplifies the manner in which the lifter block 63 and the body member 62 are connected, thereby reducing the manufacturing costs of the lifter block 63 and the body member 62.

In any of the above embodiments, as shown in fig. 3 to 5, the peeling knife 1 is provided with a first plane 11 and a second plane 12, and an included angle exists between the first plane 11 and the second plane 12; the first plane 11 and the second plane 12 are in arc transition, and the arc forms the cutting edge 13 of the stripping knife 1.

In this embodiment, the first plane 11 and the second plane 12 form an included angle, that is, the thickness of the film peeling knife 1 is gradually reduced in a direction approaching the cutting edge 13, and the transition portion between the first plane 11 and the second plane 12 forms the cutting edge 13 of the film peeling knife 1, and when the protective film moves relative to the film peeling knife 1, the cutting edge 13 applies a force to the protective film, so that the base paper of the protective film is bent and deformed upward relative to the protective film, and is separated from the protective film. Therefore, the first plane 11 and the second plane 12 have an included angle, so that the forming of the cutting edge 13 of the film peeling knife 1 can be facilitated, and the processing mode of the cutting edge 13 is simplified; meanwhile, the thickness of the cutting edge 13 is small, so that the acting force of the cutting edge 13 on the base paper of the protective film is concentrated, the base paper and the protective film are convenient to separate, and the usability of the film stripping knife 1 is improved.

In any of the above embodiments, as shown in fig. 3 and 4, the film peeling knife 1 is provided with a film adjusting plate 14, and the film adjusting plate 14 can move relative to the film peeling knife 1 along the height direction of the film pasting mechanism, so as to adjust the mounting position of the protective film on the film peeling knife 1.

In this embodiment, along the height direction of the film pasting mechanism, the protection film is installed below the film adjusting plate 14, and because the film adjusting plate 14 can move up and down along the height direction of the film pasting mechanism relative to the film peeling knife 1, the installation position of the protection film on the film peeling knife 1 can be adjusted by adjusting the installation position of the film adjusting plate 14 on the film peeling knife 1, so that the stability of contact between the protection film and the film peeling knife 1 is improved, the protection film is prevented from moving relative to the film peeling knife 1 in the working process of the film pasting device, the film pasting quality of the film pasting device is influenced, the working stability of the film pasting device is improved, and the service performance of the film pasting device is improved.

As shown in fig. 3 and 4, the film adjusting plate 14 is provided with a third mounting hole 141, the film peeling knife 1 is provided with a fourth mounting hole 15, and a fastener passes through the third mounting hole 141 and the fourth mounting hole 15 to realize connection of the film adjusting plate 14 and the film peeling knife 1, wherein the size of the third mounting hole 141 is larger than the size of the fourth mounting hole 15 along the moving direction of the lifting block 63 so as to facilitate adjustment of the mounting position of the film adjusting plate 14. The structure simplifies the connection mode of the film adjusting plate 14 and the film stripping knife 1, thereby reducing the production cost of the film adjusting plate 14 and the film stripping knife 1. Meanwhile, as shown in fig. 3 and 5, the film adjusting plate 14 is provided with a limiting part 142, the film peeling knife 1 is provided with a limiting matching part 16, and when the film adjusting plate 14 is installed on the film peeling knife 1, at least part of the limiting part 142 extends into the limiting matching part 16, so that the installation accuracy of the film adjusting plate 14 is improved; meanwhile, when the film adjusting plate 14 moves relative to the film stripping knife 1, the limiting part 142 and the limiting matching part 16 can play a role in guiding, and the unstable connection between the film adjusting plate 14 and the film stripping knife 1 caused by the inclination of the film adjusting plate 14 is prevented, so that the installation stability of the film adjusting plate 14 is improved.

As shown in fig. 2, the film pasting device can paste the protection films of different materials to different products, so the film pasting device is further provided with a detection device 8, and the detection device 8 can detect the materials of the protection films, so that the film pasting of the products is judged, the protection films of other materials are prevented from being pasted on the surfaces of the products, the working stability and the use performance of the film pasting device are improved, and the use experience of users is improved.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A film laminating mechanism, characterized in that the film laminating mechanism comprises:

a base;

the film peeling knife (1), the film peeling knife (1) is arranged on the base;

the roller (2) is arranged on the base, the roller (2) can swing relative to the base, and the roller (2) and the film stripping knife (1) are used for arranging a protective film;

the elastic piece (3), one end of the elastic piece (3) is connected with the roller (2), the other end of the elastic piece is connected with the base, and the elastic piece (3) is used for driving the roller (2) to contact with a product to be laminated;

the film pasting mechanism comprises a mounting frame (4), the mounting frame (4) is mounted on the base, the film peeling knife (1) and the roller (2) are mounted on the base through the mounting frame (4), and the mounting frame (4) can rotate relative to the base so as to drive the roller (2) and the film peeling knife (1) to swing relative to the base;

the mounting frame (4) is further provided with a fixed block (42), the fixed block (42) is provided with a rotating wheel (43), when the mounting frame (4) swings, the rotating wheel (43) moves along with the mounting frame (4) and rotates relative to the fixed block (42), and the mounting frame (4) is kept horizontal in the mounting and using processes;

the film pasting mechanism comprises a base (6), a limiting block (61) is arranged on the base (6), and the rotating wheel (43) is in contact with the limiting block (61).

2. Film sticking mechanism according to claim 1, characterized in that one end of the elastic member (3) is connected with the roller (2) through the mounting frame (4).

3. The film sticking mechanism according to claim 2, further comprising a rotating shaft (5), wherein the rotating shaft (5) is mounted to the base, the mounting frame (4) is mounted to the base through the rotating shaft (5), and the mounting frame (4) is capable of swinging around the rotating shaft (5) with respect to the base.

4. A film sticking mechanism according to claim 3, characterized in that a limiting member (41) is provided at an end of the mounting frame (4) away from the rotating shaft (5), and the limiting member (41) can be abutted with the limiting member (61) to limit the swinging angle of the mounting frame (4) around the rotating shaft (5).

5. The film sticking mechanism according to claim 4, wherein the stopper (61) includes an extension (611), and the extension (611) holds the wheel (43) between the extension (611) and the bottom wall of the stopper (61).

6. The film pasting mechanism according to claim 4, further comprising a cylinder (7), wherein the cylinder (7) is mounted on the base (6), the limiting block (61) is mounted on the cylinder (7), and the cylinder (7) can drive the limiting block (61) to move.

7. A film sticking mechanism according to claim 6, wherein said base (6) comprises a body member (62) and a lifting block (63), said lifting block (63) being movable relative to said body member (62) in a height direction of said film sticking mechanism to adjust a height of said film sticking mechanism.

8. The film sticking mechanism according to any one of claims 1 to 7, wherein the film peeling knife (1) is provided with a first plane (11) and a second plane (12), and an included angle exists between the first plane (11) and the second plane (12);

the first plane (11) and the second plane (12) are in arc transition, and the arc forms a cutting edge (13) of the film stripping knife (1).

9. The film pasting mechanism according to any one of claims 1 to 7, wherein the film peeling knife (1) is provided with a film adjusting plate (14), and the film adjusting plate (14) can move relative to the film peeling knife (1) along the height direction of the film pasting mechanism so as to adjust the mounting position of a protective film on the film peeling knife (1).