CN219790642U - Film sticking device for realizing synchronous operation of film tearing and film sticking based on screen extraction mode - Google Patents

Abstract

The utility model relates to the technical field of film sticking devices, in particular to a film sticking device for realizing synchronous operation of film tearing and film sticking based on a screen extraction mode, which is used for assisting in sticking a protective film to a screen, and comprises a film positioning sheet, a film protecting sheet, a base, a sliding seat and an exhaust piece, wherein the film positioning sheet is stuck on a touch surface of the protective film, and the film protecting sheet is stuck on a sticking surface of the protective film; utilize push-and-pull complex mode, after fixing a position protection film and screen, the action through pulling out screen and protection film drives the membrane protection piece on the protection film and tears to through this action a synchronous drive exhaust spare, make the protection film by tearing the part of membrane protection piece and can be immediately by exhaust spare exhaust and attached to the screen, through this setting of structure combine this pad pasting action, can realize only pulling out the action of screen and protection film alright realize tearing down of membrane protection piece and the synchronous operation of attaching of protection film, thereby can improve the precision of pad pasting and the convenience of pad pasting greatly.

Description

Film sticking device for realizing synchronous operation of film tearing and film sticking based on screen extraction mode

Technical Field

The utility model relates to the technical field of film sticking devices, in particular to a film sticking device for realizing synchronous operation of film tearing and film sticking based on a screen extraction mode.

Background

The mobile phone screen almost bears the size of the whole mobile phone, the damage of the screen is extremely easy to be caused by improper operation in the use process, therefore, when the mobile phone is used, a protective film is basically required to be attached to the mobile phone screen so as to play a role in protecting the screen, in order to improve the screen film attaching efficiency, the existing film attaching device for simultaneously positioning the protective film and the mobile phone is adopted on the market, and after the mobile phone and the protective film are positioned, a brace connected with a release film is extended between the screen and the protective film, the release film is reversely pulled out through the brace, the attaching surface of the protective film is exposed and is kept in close contact with the mobile phone screen, at the moment, the protective film is pressed, so that the protective film can be accurately attached to the mobile phone screen, and the dust-free type accurate film attaching effect can be realized under the natural environment through the structure, thereby improving the screen film attaching efficiency.

However, in the above manner, the attachment between the protective film and the screen is achieved mainly by means of guiding the automatic exhaust, so that the adhesive surface of the protective film needs to be fully exposed to the air to perform the operation of guiding (i.e. pressing) the automatic exhaust, but the operation of tearing the film while attaching the protective film cannot be performed, that is, the protective film cannot be attached to the mobile phone screen simultaneously during the film tearing operation.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.

The utility model provides a realize pad pasting ware of dyestripping and pad pasting synchronous operation based on screen extraction mode for assist with the protection film attached to the screen, including membrane spacer, membrane protection piece, a pedestal, slide and exhaust piece, the membrane spacer is attached on the touch face of protection film, the membrane protection piece is attached on the sticky face of protection film, the slide is connected on the pedestal along the front end push-and-pull of base, be provided with the fixed position that is used for fixing the screen and the first membrane fixed knot who is used for fixing the membrane spacer on the slide, the membrane spacer passes through first membrane fixed knot and constructs to be fixed on the slide, make protection film and membrane protection piece can be placed between fixed position and membrane spacer, and the protection film passes through the fixed still location suspension of membrane spacer and is in fixed position top;

the base is provided with a second film fixing structure, the rear end of the film protecting piece is also extended with a brace part folded at the lower end of the film protecting piece, and the brace part is fixedly matched with the second film fixing structure; the exhaust piece is arranged on the base, and the exhaust piece is matched on the membrane positioning sheet through the sliding seat and the base in a sliding manner to carry out close contact type sweeping operation.

Preferably, the left side, the right side and the rear side of the base are provided with blocking edges, the blocking edges along the left side and the right side on the base are respectively provided with a drawer type chute, the left side and the right side of the sliding seat are in sliding connection with the drawer type chute, and the sliding seat is limited by the blocking edges at the rear side of the base.

Preferably, the blocking edge at the rear side of the base is also provided with a limiting groove which is butted with the drawer type sliding groove, and the rear end of the sliding seat stretches into the limiting groove to limit.

Preferably, the slide seat is provided with a surrounding edge, the fixing part on the slide seat is formed by surrounding the surrounding edge, the left side and the right side of the surrounding edge are flush with the left side and the right side of the slide seat, and the total thickness of the slide seat and the surrounding edge is matched with the thickness of the drawer type sliding groove.

Preferably, the first film fixing structure comprises at least one first fixing column arranged at the front part of the enclosing edge and at least one second fixing column arranged at the rear part of the enclosing edge, the second fixing column is in abdication fit with the film protecting sheet, the first fixing column and the second fixing column are in foolproof arrangement, the front end and the rear end of the film locating sheet are all extended to form a grabbing lug part, a first fixing hole is formed in the grabbing lug part, the grabbing lug part at the front end of the film locating sheet is in positioning fit with the first fixing column through the first fixing hole, the grabbing lug part at the rear end of the film locating sheet is in positioning fit with the second fixing column through the first fixing hole, and the grabbing lug part is supported on the enclosing edge.

Preferably, the upper end surface of the front part of the enclosing edge is arranged obliquely downwards, the first fixing column is provided with a first expansion part, and the grabbing lug part at the front end of the film locating piece is kept obliquely downwards by the limitation of the first expansion part.

Preferably, the second film fixing structure comprises at least one third fixing column arranged at the rear position of the base, a second expansion part is further arranged on the second film fixing structure, a second fixing hole matched with the third fixing column is formed in the brace part, and the brace part is positioned on the third fixing column after overcoming the resistance of the second expansion part through the stretching of the second fixing hole.

Preferably, an extension part is arranged between the front end of the enclosing edge and the front end of the sliding seat on the sliding seat, the thickness of the extension part is smaller than that of the drawer type sliding groove, the front end of the sliding seat is also provided with a buckling hand part, two ends of the buckling hand part are respectively matched with the blocking edges on the left side and the right side of the base in a propping mode, the exhaust part is connected between the blocking edges on the left side and the right side of the base, and the exhaust part is positioned above the extension part.

Preferably, the exhaust piece is in a roller-shaped structure, and the blocking edges at the left side and the right side of the base are respectively provided with dovetail grooves which are matched with the exhaust piece, and the two ends of the exhaust piece are respectively connected with the dovetail grooves at the left side and the right side of the base in a rotating way.

Preferably, the blocking edges on the left side and the right side of the base are respectively provided with a lifting part, and the dovetail groove is arranged on the lifting parts.

Compared with the prior art, the utility model has the beneficial effects that:

utilize push-and-pull complex mode, after fixing a position protection film and screen, the action through pulling out screen and protection film drives the membrane protection piece on the protection film and tears to through this action a synchronous drive exhaust spare, make the protection film by tearing the part of membrane protection piece and can be immediately by exhaust spare exhaust and attached to the screen, through this setting of structure combine this pad pasting action, can realize only pulling out the action of screen and protection film alright realize tearing down of membrane protection piece and the synchronous operation of attaching of protection film, thereby can improve the precision of pad pasting and the convenience of pad pasting greatly.

The screen and the protection film can be accurately positioned on the sliding seat, then the synchronous movement of the screen and the protection film is realized by pulling the sliding seat, at the moment, the protection film is limited on the base through the brace part, after the sliding seat is pulled, the movement of the film positioning sheet drives the protection film to move, the film protection sheet is motionless, the protection film is gradually separated from the film protection sheet in the moving process, namely, the film protection sheet is gradually torn off from the protection film, in the tearing process, the exhaust piece is synchronously interposed, the front end of the film positioning sheet is subjected to the close contact type transverse sweeping operation towards the rear end of the film positioning sheet, so that the protection film at the lower end of the film protection sheet can be transversely guided onto the screen, and the operation of attaching the protection film onto the screen can be immediately realized when the film protection sheet is torn off, thereby the pasting operation that the pasting surface of the protection film can not be exposed in the air is realized.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of the structure of the present utility model in a state where the base and the slider are pushed tightly;

FIG. 2 is a schematic view of the structure of the base and the slide in the pulled-out state according to the present utility model;

FIG. 3 is a schematic view of the structure of the film sticking process of the present utility model;

FIG. 4 is a schematic cross-sectional view of FIG. 3 in accordance with the present utility model;

FIG. 5 is a schematic view of the structure of the membrane positioning sheet, the membrane protecting sheet and the protecting membrane in the present utility model;

fig. 6 is a schematic diagram of the structure of fig. 4 a according to the present utility model.

Reference numerals and names in the drawings are as follows:

the protective film 1, the screen 2, the film positioning sheet 10, the tab portion 11, the first fixing hole 12, the film protective sheet 20, the stay portion 21, the second fixing hole 22, the base 30, the second film fixing structure 31, the third fixing post 311, the second expansion portion 312, the blocking edge 32, the drawer type slide groove 33, the limit groove 34, the dovetail groove 36, the raised portion 37, the slide carriage 40, the fixing portion 41, the first film fixing structure 42, the first fixing post 421, the second fixing post 422, the first expansion portion 423, the enclosing edge 44, the extension portion 45, the buckle portion 46, and the exhaust member 50.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, in the embodiment of the present utility model, a film sticking device for implementing synchronous operation of film tearing and film sticking based on a screen extraction manner is used for assisting in sticking a protective film 1 onto a screen 2, and includes a film positioning sheet 10, a film protecting sheet 20, a base 30, a sliding seat 40 and an air exhausting member 50, after the protective film 1 and the screen 2 are positioned by using a push-pull matching manner, the film protecting sheet 20 on the protective film 1 is driven to tear by pulling out the screen 2 and the protective film 1, and an air exhausting member 50 is synchronously driven by the action, so that a part of the protective film 1, which is torn off the film protecting sheet 20, can be immediately exhausted by the air exhausting member 50 to be stuck onto the screen 2, and by combining the film sticking action by the structural arrangement, only the action of pulling out the screen 2 and the protective film 1 can be implemented, thereby greatly improving the accuracy of film sticking and the convenience of film sticking;

specifically, the film positioning sheet 10 is attached to the touch surface of the protective film 1, and the film protective sheet 20 is attached to the adhesive surface of the protective film 1, so that the protective film 1, the film positioning sheet 10, and the film protective sheet 20 are integrally formed to be positioned on the slide 40 and the base 30; a sliding seat 40 is connected to the base 30 in a sliding manner along the front end of the base 30, a fixing part 41 for locating the screen 2 and a first film fixing structure 42 for fixing the film locating plate 10 are arranged on the sliding seat 40, the film locating plate 10 is fixed on the sliding seat 40 through the first film fixing structure 42, the protective film 1 and the film protecting plate 20 can be placed between the fixing part 41 and the film locating plate 10, and the protective film 1 is also fixed and suspended above the fixing part 41 through the fixing of the film locating plate 10;

a second film fixing structure 31 is arranged on the base 30, a brace part 21 folded at the lower end of the film protecting sheet 20 is also extended at the rear end of the film protecting sheet 20, and the brace part 21 is fixedly matched with the second film fixing structure 31; the air discharging member 50 is provided on the base 30, and the air discharging member 50 performs a close contact type sweeping operation on the film positioning sheet 10 by push-pull engagement of the slider 40 and the base 30.

By means of the arrangement, the screen 2 and the protective film 1 can be accurately positioned on the sliding seat 40, then synchronous movement of the screen 2 and the protective film 1 is achieved by pulling the sliding seat 40, at the moment, since the film protective sheet 20 is limited on the base 30 through the brace part 21, after the sliding seat 40 is pulled, the movement of the film protective sheet 10 drives the protective film 1 to move, the film protective sheet 20 is not moved, the protective film 1 is gradually separated from the film protective sheet 20 in the moving process, namely, the film protective sheet 20 is gradually torn off from the protective film 1, in the tearing process, the exhaust piece 50 is synchronously interposed, and a close contact type transverse sweeping operation is conducted along the front end of the film protective sheet 10 to the rear end of the film protective sheet 10, so that the protective film 1 at the lower end of the film protective sheet 20 can be transversely guided to the screen 2, and the operation that the protective film 1 can be attached to the screen 2 immediately when the film protective sheet 20 is torn off can be achieved, and the attaching face of the protective film 1 cannot be exposed in air can be achieved; in addition, in order to enable the film protection sheet 20 to achieve a more efficient dust-free attaching effect in the tearing process, namely, to achieve the purpose of tearing the film protection sheet 20 and simultaneously adsorbing dust on the mobile phone screen 2, the film protection sheet 20 is further provided with an electrostatic layer, so that the purpose of electrostatic dust adsorption is achieved.

Referring to fig. 1-3, based on the push-pull matching manner of the base 30 and the slide 40, the present utility model adopts a drawer type matching structure, wherein blocking edges 32 are disposed on the left side, the right side and the rear side of the base 30, and drawer type sliding grooves 33 are respectively disposed on the blocking edges 32 on the left side and the right side of the base 30, the left side and the right side of the slide 40 are slidably connected with the drawer type sliding grooves 33, and the slide 40 is limited by the blocking edges 32 on the rear side of the base 30. Adopt drawer type complex structure, can satisfy slide 40 and base 30 and carry out push-and-pull cooperation towards an opposite direction, and through this mode, owing to protection film 1 and screen 2 all fix a position on slide 40, even though slide 40 and base 30 cooperation appear the deviation, also can not influence the accurate location of protection film 1 and screen 2.

Referring to fig. 1-4, in order to facilitate the sliding of the base 30 and the sliding seat 40, a larger tolerance is allowed between the base 30 and the sliding seat 40, but the sliding seat 40 and the base 30 are relatively flexible, which may cause sliding to occur when positioning the protective film 1 and the screen 2, so as to cause spontaneous film tearing operation, so that the sliding seat 40 can maintain stability when being pushed against the blocking edge 32 at the rear of the base 30, the blocking edge 32 at the rear of the base 30 is further provided with a limiting groove 34 abutting against the drawer-type sliding groove 33, and the rear end of the sliding seat 40 is deeply limited in the limiting groove 34.

Referring to fig. 1-4, based on the arrangement of the fixing portion 41, the mobile phone screen 2 is taken as an example based on the generally rectangular structure of the screen 2, and the surrounding edge 44 is disposed on the sliding base 40, so that the surrounding edge 44 is used for supporting the periphery of the screen 2, thereby achieving the purpose of positioning the screen 2, in order to achieve the compactness of the overall structure of the sliding base 40, the left and right sides of the surrounding edge 44 are flush with the left and right sides of the sliding base 40 by utilizing the edges of the sliding base 40, and the total thickness of the sliding base 40 and the surrounding edge 44 is matched with the thickness of the drawer type chute 33, so that the surrounding edge 44 can position the screen 2 and simultaneously can also be in sliding fit with the drawer type chute 33.

Referring to fig. 1, fig. 4 and fig. 6, the first film fixing structure 42 is disposed on the enclosing edge 44 by using the structure of the enclosing edge 44, and specifically, the first film fixing structure 42 includes at least one first fixing post 421 disposed at the front portion of the enclosing edge 44 and at least one second fixing post 422 disposed at the rear portion of the enclosing edge 44, the second fixing post 422 is in abdicating fit with the film protection sheet 20, and the first fixing post 421 and the second fixing post 422 are disposed in a foolproof manner so as to prevent the film positioning sheet 10 from being reversely assembled at the positioning position; through all extending forming has the grab ear 11 at the front end and the rear end of film locating piece 10, is provided with first fixed orifices 12 on grab ear 11, and grab ear 11 of film locating piece 10 front end passes through first fixed orifices 12 and first fixed column 421 location cooperation, and grab ear 11 of film locating piece 10 rear end passes through first fixed orifices 12 and second fixed column 422 location cooperation, and grabear 11 supports on enclosing limit 44.

Referring to fig. 4 and 6, since the vent member 50 needs to be torn off a portion of the membrane protection sheet 20 before the vent member 50 is inserted into the membrane positioning sheet 10 to vent the membrane protection sheet 1, a certain distance is reserved between the vent member 50 and the membrane protection sheet 1 in the initial state, which results in the vent member 50 being clamped by the membrane positioning sheet 10 during insertion, so that the upper end surface of the front portion of the enclosing edge 44 is inclined downward, and the first fixing post 421 is provided with the first expansion portion 423, and the grip portion 11 at the front end of the membrane positioning sheet 10 is inclined downward due to the restriction of the first expansion portion 423.

Referring to fig. 1 to 4, in the above technical solution, it is described that a certain distance needs to be kept between the air discharging member 50 and the protective film 1 in the initial state, so that an extension 45 is provided between the front end of the enclosing edge 44 and the front end of the sliding seat 40 on the sliding seat 40, the air discharging member 50 is connected between the blocking edges 32 on the left and right sides of the base 30, and the air discharging member 50 is located above the extension 45; in view of that the sliding friction force between the slide 40 and the base 30 is not excessively large when the slide 40 is pulled, and the slide 40 can be pulled out manually conveniently, the thickness of the extension portion 45 is smaller than that of the drawer type chute 33 in view of reducing the sliding friction force and facilitating the slide 40 pulling, so that the extension portion 45 can be not limited by the drawer type chute 33, the upward flexibility of the extension portion 45 is improved, when the extension portion 45 is grasped by hands to pull, the extension portion 45 has upward acting force when the pull direction is deviated, and by the arrangement, the acting force can slightly deform the extension portion 45 without causing the extension portion 45 to abut against the drawer type chute 33, thereby causing the problem of friction force increase, the front end of the slide 40 is further provided with the buckling portion 46, and the two ends of the buckling portion 46 respectively abut against the blocking edges 32 at the left side and the right side of the base 30, thereby facilitating the slide 40 to be pulled by the hand.

Referring to fig. 1-4, in order to ensure the exhaust effect, an exhaust member 50 is provided in a roller-shaped structure, and the blocking edges 32 on the left and right sides of the base 30 are respectively provided with dovetail grooves 36 adapted to the exhaust member 50, and two ends of the exhaust member 50 are respectively rotatably connected with the dovetail grooves 36 on the left and right sides of the base 30; the blocking edges 32 on the left and right sides of the base 30 are also provided with raised portions 37, respectively, and the dovetail grooves 36 are provided on the raised portions 37.

Referring to fig. 1, 2, 3, 4 and 6, based on the arrangement of the second film fixing structure 31, one end of the film protecting sheet 20 is mainly limited, so that the second film fixing structure 31 includes at least one third fixing post 311 arranged at the rear position of the base 30, and a second expanding portion 312 is further arranged on the second film fixing structure 31, the brace portion 21 is provided with a second fixing hole 22 matching with the third fixing post 311, and the brace portion 21 is positioned on the third fixing post 311 after overcoming the resistance of the second expanding portion 312 by stretching of the second fixing hole 22. When the film protecting sheet 20 is pulled, the speed of folding and tearing the film protecting sheet 20 is greater than the moving speed of the air discharging piece 50 relative to the base 30, so that in the film tearing process, the air discharging piece 50 is slowly close to the tearing edge of the film protecting sheet 20, if the size is not good, the tearing edge of the film protecting sheet 20 is finally exceeded and the film protecting sheet 20 is pressed, therefore, in the size setting, when the air discharging piece 50 starts to enter the position right above the screen along the front end, more than half of the adhesive surface of the protecting film 1 needs to be torn by the tearing edge of the film protecting sheet 20, and the air discharging piece 50 can be prevented from pressing the film protecting sheet 20 in the whole process.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (10)

1. The film pasting device is characterized by comprising a film locating piece, a film protecting piece, a base, a sliding seat and an exhaust piece, wherein the film locating piece is attached to a touch surface of the protecting film, the film protecting piece is attached to the pasting surface of the protecting film, the sliding seat is connected to the base in a sliding manner along the front end of the base, a fixing part for locating the screen and a first film fixing structure for fixing the film locating piece are arranged on the sliding seat, the film locating piece is fixed on the sliding seat through the first film fixing structure, so that the protecting film and the film protecting piece can be placed between the fixing part and the film locating piece, and the protecting film is fixed and suspended above the fixing part through the film locating piece;

the base is provided with a second film fixing structure, the rear end of the film protecting piece is also extended with a brace part folded at the lower end of the film protecting piece, and the brace part is fixedly matched with the second film fixing structure; the exhaust piece is arranged on the base, and the exhaust piece is matched on the membrane positioning sheet through the sliding seat and the base in a sliding manner to carry out close contact type sweeping operation.

2. The film sticking device for realizing synchronous operation of film tearing and film sticking based on a screen extraction mode according to claim 1, wherein blocking edges are arranged on the left side, the right side and the rear side of the base, drawer type sliding grooves are respectively arranged on the blocking edges on the left side and the right side of the base, the left side and the right side of the sliding seat are in sliding connection with the drawer type sliding grooves, and the sliding seat is limited by the blocking edges on the rear side of the base.

3. The film sticking device for realizing synchronous operation of film tearing and film sticking based on a screen extraction mode according to claim 1, wherein the blocking edge at the rear side of the base is further provided with a limiting groove which is in butt joint with a drawer type sliding groove, and the rear end of the sliding seat is extended into the limiting groove for limiting.

4. The film sticking device for realizing synchronous operation of film tearing and film sticking based on a screen extraction mode according to claim 2, wherein a surrounding edge is arranged on the sliding seat, a fixed part on the sliding seat is formed by surrounding the surrounding edge, the left side and the right side of the surrounding edge are flush with the left side and the right side of the sliding seat, and the total thickness of the sliding seat and the surrounding edge is matched with the thickness of the drawer type sliding groove.

5. The film sticking device for realizing synchronous operation of a film tearing and sticking film based on a screen extraction mode according to claim 4, wherein the first film fixing structure comprises at least one first fixing column arranged at the front part of a surrounding edge and at least one second fixing column arranged at the rear part of the surrounding edge, the second fixing column is in abdication fit with a film protection sheet, the first fixing column and the second fixing column are in foolproof arrangement, the front end and the rear end of the film positioning sheet are respectively provided with a grabbing lug in an extending mode, a first fixing hole is formed in each grabbing lug, the grabbing lug at the front end of the film positioning sheet is in positioning fit with the first fixing column through the first fixing hole, the grabbing lug at the rear end of the film positioning sheet is in positioning fit with the second fixing column through the first fixing hole, and the grabbing lug is supported on the surrounding edge.

6. The film sticking device for realizing synchronous operation of film tearing and film sticking based on a screen extraction mode according to claim 5, wherein the upper end face of the front part of the enclosing edge is arranged obliquely downwards, a first expansion part is arranged on the first fixing column, and the grabbing lug part at the front end of the film locating piece is kept obliquely downwards by the limitation of the first expansion part.

7. The film sticking device for realizing synchronous operation of film tearing and film sticking based on a screen extraction mode according to claim 2, wherein the second film fixing structure comprises at least one third fixing column arranged at the rear position of the base, a second expansion part is further arranged on the second film fixing structure, a second fixing hole matched with the third fixing column is formed in the brace part, and the brace part is positioned on the third fixing column after overcoming the resistance of the second expansion part through the stretching of the second fixing hole.

8. The film sticking device for realizing synchronous operation of a film tearing and sticking film based on a screen extraction mode according to claim 4, wherein an extension part is arranged between the front end of a surrounding edge and the front end of the sliding seat on the sliding seat, the thickness of the extension part is smaller than that of a drawer type sliding groove, the front end of the sliding seat is also provided with a buckling hand part, two ends of the buckling hand part are respectively abutted against the blocking edges on the left side and the right side of the base, an exhaust piece is connected between the blocking edges on the left side and the right side of the base, and the exhaust piece is positioned above the extension part.

9. The film sticking device for realizing synchronous operation of film tearing and film sticking based on a screen extraction mode according to claim 8, wherein the exhaust piece is of a roller-shaped structure, dovetail grooves which are adapted to the exhaust piece are respectively arranged on the blocking edges on the left side and the right side of the base, and two ends of the exhaust piece are respectively connected with the dovetail grooves on the left side and the right side of the base in a rotating mode.

10. The film sticking device for realizing synchronous operation of film tearing and film sticking based on a screen extraction mode according to claim 9, wherein blocking edges on the left side and the right side of the base are respectively provided with a lifting part, and the dovetail groove is arranged on the lifting parts.