Patent Publication Number: US-2021178739-A1

Title: Film releasing assembly, film sticking machine and method for using the film sticking machine

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is filed as a bypass continuation-in-part application of PCT application PCT/CN2019/121786 filed Nov. 29, 2019, designating the United States, which claims priority to Chinese patent application No. 201910853950.1 filed Sep. 10, 2019, the entire contents of both of which are incorporated herein by reference. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to the field of film sticking devices for electronic devices, and more particularly, to a film releasing assembly, a film sticking machine and a method for using the same. 
     BACKGROUND 
     Electronic devices are widely used in modern society, and such an electronic device is usually provided with a screen having a touch function. A user, with his/her fingers, through the conductivity of the skin of fingers, can touch the screen, i.e. clicking on virtual keys to initial calls, or menus to get information. To prevent the surface of the screen from the damage caused by frequent touch or friction or collision, it is necessary to attach a protective film on the screen. 
     The protective film generally consists of a film sheet with an adhesive side, a release layer attached to the adhesive side of the film sheet, and a protective layer attached to another side of the film sheet. Some protective films may be additionally provided with a positioning mechanism for positioning on their release layers or protective layers. At present, most of the protective films are manually attached to the electronic devices, and such a method poses a high requirement on users, leading to low work efficiency and poor attaching effect, for example, many protective films are scrapped due to unaligned attachment, bubble generation, or impurity adhesion. Another method for attaching a protective film to an electronic device may involve a film sticking machine aiding in film attaching. However, the film sticking machine in related technologies usually has a complicated structure with a complex operation and low accuracy, and during an attaching operation of the machine, the release layer needs to be manually peeled off, so that dust may easily adhere to the film sheet or the screen of the electronic device during the operation, leading to scrapping of the protective film. 
     SUMMARY 
     The present disclosure aims to at least partially solve one of the technical problems in the existing art. For this purpose, the present disclosure provides a film releasing assembly with improved efficiency of peeling a release layer, improved quality for film sticking, and simple and easy operation. 
     A film releasing assembly according to a first aspect of the present disclosure includes a pedestal and a sliding block seat. The pedestal is recessed inwards to form a process groove therein, and the process groove defines a positioning area and a film sticking area which are communicated with each other. The sliding block seat is arranged in the process groove and capable of reciprocating in the positioning area and the film sticking area, and the sliding block seat at one end thereof facing to the film sticking area includes a pushing portion formed to peel a release layer off from a film and guide the release layer peeled downwards to the process groove. 
     The film releasing assembly according to embodiments of the present disclosure has at least the following beneficial effects: through the sliding block seat capable of reciprocating in the positioning area and the film sticking area in the process groove, the release layer of a protective film may be peeled off from the film sheet and aligned with the film sheet during the sliding block seat being moved from the positioning area to the film sticking area, the film releasing assembly has an simple and convenient operation, and allows a precise positioning of a screen of an electronic device to the film sheet; and the release layer is guided downwards below the process groove while peeled, so that impurities adhered to the film sheet or the screen of the electronic device in a process of peeling off the release layer are avoided, resulting in a better film sticking quality. 
     According to some embodiments of the present disclosure, the pedestal includes a positioning hook protruding from a bottom of the process groove and matched with a connection identifier in the film sticking area, and the sliding block seat on a lower part thereof includes a receding groove matched with the positioning hook. 
     According to some embodiments of the present disclosure, the pushing portion includes a film releasing portion protruding towards a moving direction of the sliding block seat. 
     According to some embodiments of the present disclosure, the film releasing portion is arranged on one side of the pushing portion, and includes a pushing bevel inclined towards another side of the pushing portion away from the film releasing portion. 
     According to some embodiments of the present disclosure, the pedestal includes a guide rail arranged on a side wall of the process groove and connected between the positioning area and the film sticking area, and the sliding block seat includes a guide member matched with the guide rail; and the sliding block seat on a lower part thereof includes a plurality of first guide wheels arranged at intervals, and the pedestal includes a guide groove formed on a bottom of the process groove and matched with the first guide wheels. 
     According to some embodiments of the present disclosure, the sliding block seat on a lower part thereof includes second guide wheels, and the pedestal includes a limit boss formed on a bottom of the process groove in the film sticking area and matched with the second guide wheels. 
     A film sticking machine according to a second aspect of the present disclosure includes the film releasing assembly described above. 
     The film sticking machine according to the embodiments of the present disclosure has at least the following beneficial effects: by using the above film releasing assembly, a user may easily manipulate the film releasing assembly to efficiently and stably peel off the release layer, so that impurities adhered to the film sheet or the screen of the electronic device in a process of peeling off the release layer are avoided, resulting in better film sticking quality for the film sticking machine. 
     According to some embodiments of the present disclosure, the film sticking machine further includes a film sticking assembly, a film positioner, and a device positioner. The film sticking assembly includes a film presser arranged above the pedestal and in the film sticking area and a positioning seat arranged in the film sticking area in a sliding manner along a film sticking direction. The film positioner is configured to lock a protective film in location, and arranged above the positioning seat. The device positioner is configured to lock an electronic device in location, and arranged above the sliding block seat. 
     According to some embodiments of the present disclosure, the film presser includes a film pressing mechanism, a pushing handle and a supporting frame. The film pressing mechanism includes a separating sheet, and a film pressing strip protruding along a lower surface of the separating sheet. The pushing handle is vertically spaced from the film pressing mechanism to define a penetrating space between the pushing handle and the separating sheet. The supporting frame has an upper end and a lower end which are respectively connected with the film pressing mechanism and the pushing handle. 
     A method for using the film sticking machine according to a third aspect of the present disclosure includes steps of: moving the device positioner to the positioning area; providing and positioning a protective film in the film positioner; providing and positioning an electronic device in the device positioner; moving the device positioner from the positioning area to the film sticking area, to align the device positioner with the film positioner; pressing a separating part of the protective film, while moving the film presser along the film sticking direction, to attach a film sheet of the protective film to a screen of the electronic device; and moving the device positioner from the film sticking area to the positioning area. 
     The method for using the film sticking machine according to the embodiments of the present disclosure has at least the following beneficial effects: with the above film sticking machine, the film sticking operation is simple and easy, and the film sticking quality is high. 
     A film presser according to a fourth aspect of the present disclosure includes a film pressing mechanism, a pushing handle, and a supporting frame. The film pressing mechanism includes a separating sheet and a film pressing strip protruding along a lower surface of the separating sheet. The pushing handle, vertically spaced from the film pressing mechanism to define a penetrating space between the pushing handle and the separating sheet. The supporting frame has an upper end and a lower end which are respectively connected with the film pressing mechanism and the pushing handle. 
     A film sticking assembly according to a fifth aspect of the present disclosure includes the film presser described above, and a positioning seat defining a film sticking space. The film presser is arranged in the film sticking space in a sliding manner along a film sticking direction. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and/or additional aspects and advantages of the present disclosure will be apparent and easily understood from the description of the embodiments with reference to the following accompanying drawings, in the drawings: 
         FIG. 1  is a structure diagram of a film sticking machine according to an embodiment of the present disclosure; 
         FIG. 2  is an exploded view of the film sticking machine shown in  FIG. 1 ; 
         FIG. 3  is a structure diagram of a film releasing assembly according to an embodiment of the present disclosure; 
         FIG. 4  is a structure diagram of a pedestal shown in  FIG. 3 ; 
         FIG. 5  is a structure diagram of a sliding block seat shown in  FIG. 3 ; 
         FIG. 6  is an exploded view of a film sticking assembly shown in  FIG. 1 ; 
         FIG. 7  is a structure diagram of a film presser according to an embodiment of the present disclosure; 
         FIG. 8  is an exploded view of a film pressing mechanism shown in  FIG. 7 ; 
         FIG. 9  is a flow chart of a method for using a film sticking machine according to an embodiment of the present disclosure; 
         FIG. 10  is a schematic diagram of the film sticking machine subjected to step S 300  shown in  FIG. 9 ; 
         FIG. 11  is a schematic diagram of the film sticking machine subjected to step S 400  shown in  FIG. 9 ; 
         FIG. 12  is a schematic diagram of the film sticking machine subjected to step S 500  shown in  FIG. 9 ; 
         FIG. 13  is an exploded view of a protective film shown in  FIG. 9 ; 
         FIG. 14  is an exploded view of the film presser shown in  FIG. 7 ; 
         FIG. 15  is a structure diagram of a film sticking assembly according to an embodiment of the present disclosure; and 
         FIG. 16  is an exploded view of the film sticking assembly shown in  FIG. 15 . 
     
    
    
     DETAILED DESCRIPTION 
     The embodiments of the present disclosure are described in detail hereinafter. Examples of the embodiments are shown in the accompanying drawings. The same or similar reference numerals throughout the accompanying drawings denote the same or similar elements or elements having the same or similar functions. The embodiments described hereinafter with reference to the accompanying drawings are exemplary and are only used to explain the present disclosure, but should not be understood as limiting the present disclosure. 
     In the description of the present disclosure, it should be understood that the orientation or position relationship indicated by the terms “up”, “down”, “front”, “rear”, “left”, “right”, and the like is based on the orientation or position relationship shown in the accompanying drawings, it is only for the convenience of description of the present disclosure and simplification of the description, and it is not to indicate or imply that the indicated device or element must have a specific orientation, and be constructed and operated in a specific orientation. Therefore, the terms shall not be understood as limiting the present disclosure. 
     In the description of the present disclosure, “a” refers to one or more. If the terms “first” and “second” are described, the descriptions are used for the purpose of distinguishing the technical features only, and cannot be understood as indicating or implying relative importance, implicitly indicating the number of technical features indicated thereby, or implicitly indicating the order of technical features indicated thereby. 
     In the description of the present disclosure, the terms “arrangement”, “installation”, “connection” and the like should be understood in broad sense unless otherwise specified and defined. The specific meaning of the above terms in the present disclosure may be reasonably determined according to specific contents of the technical solutions by those skilled in the art. 
     The following reference numbers are used with reference to the Figures: 
       10  refers to film sticking machine;  20  refers to protective film;  21  refers to film sheet;  22  refers to release layer;  23  refers to protective layer;  24  refers to connection identifier;  25  refers to separating part; 
       100  refers to film releasing assembly;  110  refers to pedestal;  120  refers to sliding block seat;  111  refers to process groove;  112  refers to positioning area;  113  refers to film sticking area;  114  refers to guide rail;  115  refers to guide groove;  116  refers to limit boss;  117  refers to positioning hook;  121  refers to pushing portion;  1211  refers to film releasing portion;  1212  refers to pushing bevel;  122  refers to guide member;  123  refers to first guide wheel;  124  refers to second guide wheel;  125  refers to receding groove; 
       200  refers to film sticking assembly;  210  refers to film presser;  211  refers to film pressing mechanism;  2111  refers to separating sheet;  2112  refers to film pressing strip;  2113  refers to guide portion;  2114  refers to guide plane;  2115  refers to clamping groove;  2116  refers to scrapper portion;  2117  refers to positioning sheet;  212  refers to pushing handle;  2121  refers to pushing portion;  213  refers to supporting frame;  2131  refers to boss;  2132  refers to bolt;  214  refers to guide mechanism;  2141  refers to roller;  220  refers to positioning seat;  221  refers to film sticking space;  222  refers to guide rail; 
       300  refers to film positioner; 
       400  refers to device positioner; and 
       500  refers to dedusting assembly. 
     With reference to  FIGS. 1-2 , a film sticking machine  10  according to an embodiment of the present disclosure includes a film releasing assembly  100 , a film sticking assembly  200 , a film positioner  300 , and a device positioner  400 . Specifically, as shown in  FIG. 13 , a protective film  20  is consisted of a film sheet  21 , a release layer  22 , and a protective layer  23 , and the release layer  22  at one end is also provided with a connection identifier  24 . The film positioner  300  is used for locking the protective film  20  in location, where the locking is achieved by means of a positioning hole in the protective layer  23 . The device positioner  400  is used for locking an electronic device in position. The film releasing assembly  100  is constructed to bring the device positioner  400  to reciprocate between a positioning area  112  and a film sticking area  113  while peeling off the release layer  22 . The film sticking assembly  200  is constructed to attach the film sheet  21  on the film positioner  300  to a screen of the electronic device, to achieve film sticking on the electronic device. The film sticking machine according to the invention has a simple structure, providing high accuracy and excellent quality for film sticking. 
     With reference to  FIGS. 2-5 , the film releasing assembly  100  according to an embodiment of the present disclosure includes a pedestal  110  and a sliding block seat  120 , where the pedestal  110  is inwards recessed to form a process groove  111 , and the process groove  111  defines the positioning area  112  and the film sticking area  113  which are communicated with each other. The sliding block seat  120  is arranged in the process groove  111  and may reciprocate in the positioning area  112  and the film sticking area  113 . A pushing portion  121  is formed at one end of the sliding block seat  120  facing to the film sticking area  113 , to peel the release layer  22  off from the film sheet  21  and guide the release layer  22  peeled downwards to the process groove  111 . Specifically, when the sliding block seat  120  moves from the positioning area  112  to the film sticking area  113 , the release layer  22  of the protective film  20  is gradually peeled off from the film sheet  21  by means of the pushing portion  121  and aligned with the film sheet  21 , this operation is simple and convenient, and the electronic device is precisely positioned between the screen of the electronic device and the film sheet  21 . In addition, the release layer  22  is guided downwards below the process groove  111  while peeled, so that impurities adhered to the film sheet  21  or the screen of the electronic device in a process of peeling off the release layer  22  are avoided, and the film sticking quality is improved. 
     With reference to  FIGS. 4-5 , the pushing portion  121  has a film releasing portion  1211  protruding towards a moving direction of the sliding block seat  120 , and the film releasing portion  1211  is arranged along a lateral direction relative to the pushing portion  121 , alternatively, the film releasing portion  1211  may be arranged at a left side, a right side or between the left and right sides, relative to the pushing portion  121 . When the sliding block seat  120  is slid to the film sticking area  113 , the film releasing portion  1211  comes in contact with the release layer  22  first. A small contact area between the film releasing portion  1211  and the release layer  22  allows a reduced pressure area on the release layer  22 , so that, through the pushing portion  121 , the release layer  22  can be peeled off more easily and smoothly, resulting in an improved peeling efficiency, a more stable peeling process and a better peeling effect for the release layer  22 . Further, with reference to  FIGS. 2-3 , the film releasing portion  1211  is arranged on one side of the pushing portion  121 , for example in the drawings it is on a left side. The film releasing portion  1211  is inclined along one side of the pushing portion  121  away from the film releasing portion  1211  in a transitional manner to define a pushing bevel  1212 . In this embodiment, the release layer  22  is peeled from the left side, and the pushing bevel  1212  is capable of continuously and stably pushing the release layer  22  to be gradually peeled off from the film sheet  21  along an inclined line, so that the sliding block seat  120  can have further improved efficiency in peeling off the release layer  22  during a sliding process, and the release layer  22  can have a simpler design, without an additional structure designed to be matched with the film releasing portion  1211 . 
     With reference to  FIGS. 4-5 , the process groove  111  has a bottom protruding to form a positioning hook  117  matched with a connection identifier  24  in the film sticking area  113 . When the sliding block seat  120  is being moved from the positioning area  112  to the film sticking area  113 , the pushing portion  121  pushes the connection identifier  24  to the positioning hook  117 . The release layer  22  is stably guided to below the process groove  111  under the positioning cooperation between the positioning hook  117  and the connection identifier  24 , so that the release layer  22  can be better separated from the film sheet  21 , and an improved peeling effect for the release layer  22  is provided. It is appreciated that, a receding groove  125  matched with the positioning hook  117  is formed in a lower portion of the sliding block seat  120 , providing better running stability and improved guide accuracy for the sliding block seat  120 . 
     With reference to  FIGS. 4-5 , in some embodiments of the present disclosure, on both lateral side walls of the process groove  111 , guide rails  114  connected between the positioning area  112  and the film sticking area  113  are provided. The guide rails  114  are symmetrically arranged along two lateral side walls of the process groove  111 , and the sliding block seat  120  is provided with guide members  122  matched with the guide rail  114 , so that the sliding block seat  120  can move more smoothly, and is guided more accurately. Further, in a lower portion of the sliding block seat  120 , a plurality of first guide wheels  123  are provided at intervals, and on a bottom of the process groove  111 , a guide groove  115  matched with the first guide wheels  123  is provided. The first guide wheels  123  are rollably supported on the guide groove  115 , so that the degree of freedom of the sliding block seat  120  along the left-right direction is further limited, shaking of the sliding block seat  120  in a moving process is further reduced, a guide accuracy of the sliding block seat  120  is improved, and a service life of the film releasing assembly  100  is prolonged. 
     With reference to  FIGS. 4-5  again, further, on the lower portion of the sliding block seat  120 , a plurality of second guide wheels  124  are provided, and on the bottom of the process groove  111 , a limit boss  116  matched with the second guide wheels  124  is provided in the film sticking area  113 . The limit boss  116  is located on a traveling route of the second guide wheels  124 , and the second guide wheels  124  are rollably supported on the process groove  111 . When the sliding block seat  120  moves from the positioning area  112  to a designated location in the film sticking area  113 , the second guide wheels  124  roll over the limit boss  116  and then abut against the limit boss  116 , so that the sliding block seat  120  can be accurately positioned in the designated position of the film sticking area  113 . Moreover, a user can intuitively judge an aligning location of the film sheet  21 , and the operation is simpler. 
     With reference back to  FIGS. 1-2 , the film sticking machine  10  according to the embodiment of the present disclosure includes the film releasing assembly  100  of the above embodiment, the user may conveniently operate the film releasing assembly  100  to efficiently and stably peel off the release layer  22 , so that impurities are avoided from adhering to the film sheet  21  or the screen of the electronic device in a process of peeling off the release layer  22 , whereby the film sticking quality of the film sticking machine  10  is improved. 
     In some embodiments of the present disclosure, with reference to  FIGS. 6 and 1-2 , the film sticking machine  10  further includes a film sticking assembly  200 , a film positioner  300 , and a device positioner  400 . The film sticking assembly  200  includes a film presser  210  and a positioning seat  220 , the positioning seat  220  is arranged above the pedestal  110  and located in the film sticking area  113 , and the film presser  210  is arranged in the film sticking area  113  in a sliding manner along a film sticking direction. The film positioner  300  is arranged above the positioning seat  220 . The device positioner  400  is arranged above the sliding block seat  120 . When the user manipulates the film releasing assembly  100 , pushing the device positioner  400  to move from the positioning area  112  to the film sticking area  113 , the pushing portion  121  peels off the release layer  22  of the protective film  20  and aligns the device positioner  400  with the film positioner  300 . The user then manipulates the film sticking assembly  200 , to separate the protective layer  23  of the protective film  20  in the film positioner  300  from the film sheet  21 , and attach the film sheet  21  in the film positioner  300  to the screen of the electronic device, whereby a film sticking process of the electronic device is completed. The film sticking machine  10  of the present disclosure can offer simpler manipulation, higher film sticking accuracy, and better film sticking quality. 
     With reference back to  FIGS. 1-2 , the film sticking machine  10  according to the embodiment further comprises a dedusting assembly  500  for removing dust on a surface of the electronic device. The dedusting assembly  500  is arranged on the pedestal  110  and located at a junction of the positioning area  112  and the film sticking area  113 , so that the screen of the electronic device can be dedusted when the device positioner  400  is moved from the positioning area  112  to the film sticking area  113 , impurities are prevented from adhering to the screen of the electronic device, and the film sticking quality is further improved. 
     With reference to  FIGS. 6-7 , the film presser  210  includes a film pressing mechanism  211 , a pushing handle  212 , and a supporting frame  213 . The supporting frame  213  has an upper end and a lower end respectively connected with the film pressing mechanism  211  and the pushing handle  212 , i.e. connecting the pushing handle  212  and the film pressing mechanism  211 , whereby a movement of the film pressing mechanism  211  is controlled by means of the pushing handle  212 . Specifically, the film pressing mechanism  211  includes a separating sheet  2111  and a film pressing strip  2112 , and the separating sheet  2111  may separate the protective layer  23  from the film sheet  21 , thereby reducing interference of the protective layer  23  on film sticking and eliminating steps of manually removing the protective layer  23  by the user. In addition, the film pressing strip  2112  protrudes along a lower surface of the separating sheet  2111 , to press the film sheet  21  for bubble elimination, whereby the bubbles can be continuously and effectively discharged while the film sheet  21  is coming in contact with the screen of the electronic device, offering better sticking quality. It should be further noted that, the film pressing strip  2112  is generally made of an elastic buffer material, such as rubber, and the like. The film pressing strip  2112  has a certain deformation, and consequently a certain buffering force under pressure, so that the film pressing strip  2112  can exert a pressure on the film sheet  21  for effective air discharge while protecting the film sheet  21 . Further, the pushing handle  212  and the film pressing mechanism  211  are spaced vertically to define a penetrating space in between the pushing handle  212  and the separating sheet  2111 . The separating sheet  2111  separates the protective layer  23  from the film sheet  21  and guides the protective layer  23  to pass through the penetrating space, without influence exerted by the protective layer  23  on the film sticking process, and whereby the film sticking quality is further improved. 
     With reference to  FIG. 8 , a guide portion  2113  is formed at a forward end of the separating sheet  2111 , and a guide plane  2114  is formed on a lower surface of the guide portion  2113 , the guide plane  2114  is inclined backward from top to bottom. The inclined arrangement of the guide plane  2114  is beneficial for quickly separating the protective layer  23  from the film sheet  21 , and preventing the guide portion  2113  from being in contact with the film sheet  21  to cause damage to the film sheet  21 . 
     With reference to  FIG. 8 , the separating sheet  2111  is provided with a clamping groove  2115  along a left-right direction, and the film pressing strip  2112  is mounted in the clamping groove  2115 , and provided with a scraper portion  2116  protruding towards the bottom of the clamping groove  2115 . The scraper portion  2116  has an inverted conical structure with a large top and a small bottom, the scraper portion  2116  is capable of being effectively deformed to fit the film sheet  21  during a sliding process of the separating sheet  2111 , thereby offering better bubble discharge effect. Further, the clamping groove  2115  is in a gradually shrinking shape from top to bottom, and the film pressing strip  2112  and the clamping groove  2115  are mounted in a transitional fit or interference fit, so that an mounting structure between the film pressing strip and the clamping groove is more stable and durable. Glue may also be applied to a contact surface between the film pressing strip  2112  and the clamping groove  2115 , for higher stability of connection between the two. 
     With reference to  FIGS. 6-7 , a rear surface of the pushing handle  212  is concavely provided with a pushing portion  2121 , offering convenience for the user to slide the pushing handle  212 . 
     With reference to  FIGS. 9 and 13 , according to an embodiment of the present disclosure a method for using the film sticking machine  10  includes the film sticking machine according to the above embodiment, and the method for using the film sticking machine  10  includes the following steps. 
     At S 100 , the device positioner  400  is moved to the positioning area  112 . 
     At S 200 , a protective film  20  is provided, and the protective film  20  is positioned in the film positioner  300 . 
     At S 300 , an electronic device  30  is provided, and the electronic device  30  is positioned in the device positioner  400 . 
     It should be noted that the execution order of the above step S 200  and step S 300  may be interchanged, and after the above steps are executed, a state shown in  FIG. 10  is reached. At that moment, a film sticking preparation work of the film sticking machine  10  is completed. 
     At S 400 , the device positioner  400  is moved from the positioning area  112  to the film sticking area  113 , to align the device positioner  400  with the film positioner  300 . 
     It should be noted that, the release layer  22  is gradually peeled off while the device positioner  400  is being moved from the positioning area  112  to the film sticking area  113 . After the above step is executed, a state shown in  FIG. 11  is reached. At that moment, the film sheet  21  is completely aligned with the screen of the electronic device  30 . 
     At S 500 , a separating part  25  of the protective film  20  is pressed, and the film presser  210  is moved along the film sticking direction at the same time, to attach a film sheet  21  of the protective film  20  to the screen of the electronic device  30 . 
     It should be noted that, the separating part is constructed to be pressed, facilitating the initial separation between the protective layer  23  and the film sheet  21 . When the film presser  210  moves, the protective layer  23  can be gradually separated from the film sheet  21 . After the above step is executed, a state shown in  FIG. 12  is reached. At the moment, the film sheet  21  is already attached to the screen of the electronic device  30 . 
     At S 600 , the device positioner  400  is moved from the film sticking area  113  to the positioning area  112 . At the moment, the film sticking is completed, and a next film sticking operation may be performed once the protective layer  23  and the release layer  22  which are separated from the film sheet  21  in the film sticking area  113  are cleared. The film sticking machine  10  according to the embodiment has a simple structure and a convenient operation, and offers higher film sticking quality. 
     With reference to  FIGS. 7 and 14 , the film presser  210  according to an embodiment of the invention includes a film pressing mechanism  211 , a pushing handle  212 , and a supporting frame  213 . The supporting frame  213  has an upper end and a lower end respectively connected with the film pressing mechanism  211  and the pushing handle  212 , i.e. the pushing handle  212  connects the film pressing mechanism  211 , the movement of the film pressing mechanism  211  is controlled by means of the pushing handle  212 . Specifically, the film pressing mechanism  211  includes a separating sheet  2111  and a film pressing strip  2112 , and the separating sheet  2111  can separate the protective layer from the film sheet, thereby reducing interference of the protective layer on a film sticking process of the film presser  210 , and reducing steps of manually removing the protective layer by the user. In addition, the film pressing strip  2112  is convexly formed along a lower surface of the separating sheet  2111 , and the film pressing strip  2112  presses the film sheet. In the film sticking process, the film pressing strip  2112  is pressed down on the film sheet while the separating sheet  2111  separates the protective layer, so that the film sheet can gradually approach to the screen of the electronic device along the film sticking direction under pressure. Moreover, since the protective layer and the film sheet at rear in the film sticking direction are not separated at the moment, and the film sheet at rear in the film sticking direction does not come into contact with the screen of the electronic device, a contact angle is formed between the film sheet and the screen of the electronic device. The contact angle is gradually reduced during the movement of the film presser  210  along the film sticking direction, so that the film sheet may be gradually attached to the screen of the electronic device, and bubbles are continuously and effectively discharged during a gradual contact process, thereby improving the film sticking quality. It should be further noted that, the film pressing strip  2112  is generally made of an elastic buffer material, such as rubber, and the like. The film pressing strip  2112  has a certain deformation and consequently a certain buffering force under pressure, and thus the film sheet is protected, the stability of applying a pressure to the film sheet is ensured, and air can be effectively discharged from the film sheet. Further, the pushing handle  212  and the film pressing mechanism  211  are spaced vertically to define a penetrating space between the pushing handle  212  and the separating sheet  2111 . The separating sheet  2111  is designed to separate the protective layer from the film sheet and guides the protective layer to pass through the penetrating space, without influence of the protective layer on a film sticking process, offering better film sticking quality. 
     The film presser  210  according to the embodiment has a simple structure and easy manipulation, the user only needs to manipulate the pushing handle  212  to slide, enabling the film pressing mechanism  211  to act on the protective film to complete the film sticking process. Moreover, the bubbles can be continuously and effectively discharged during the contact between the film sheet and the screen of the electronic device, offering higher film sticking quality. 
     With reference to  FIGS. 15-16 , the film sticking assembly according to the embodiment of the invention includes the film presser  210  according to the above embodiment, and further includes a positioning seat  220 . The protective film is positioned on the positioning seat  220 , and the positioning seat  220  defines a film sticking space  221 . The film presser  210  is slidably arranged in the film sticking space  221  along the film sticking direction, and the film sticking direction is a forward direction of the film presser  210 . Specifically, when the film presser  210  slides along the film sticking direction, the pushing handle  212  pushes the separating sheet  2111  to remove the protective layer, and the film pressing strip  2112  can accurately and stably attach the protective film to the screen of the electronic device located below the positioning seat  220 , so that the film sticking quality is improved. 
     With reference to  FIGS. 15-16  again, the film presser  210  further includes a guide mechanism  214 , a guide rail  222  matched with the guide mechanism  214  is arranged on the positioning seat  220 , and the guide rail  222  is arranged along the film sticking direction, for ensuring the sliding accuracy of the film presser  210 , and improving the film sticking stability. 
     With reference to  FIGS. 14-15 , specifically, the guide mechanism  214  includes a plurality of sets of rollers  2141 , both ends of the separating sheet  2111  are respectively connected with the supporting frames  213 , and the plurality of sets of rollers  2141  are symmetrically arranged on the supporting frames  213  respectively, whereby the guide mechanism  214  has a stable structure, the film presser  210  confronts a smaller sliding resistance, and its service life is longer. It should be noted that, in the embodiment, two sets of rollers  2141  are arranged on each of the supporting frame  213  at intervals along the film sticking direction, thus effectively reducing swing of the separating sheet  2111  during sliding, and having a simpler structure, a lighter weight, and a lower cost. Further, each of the supporting frames  213  is provided with a boss  2131  matched with an upper end plane of each of the rollers  2141 , the separating sheet  2111  at both ends is respectively provided with a positioning sheet  2117 , and the positioning sheet  2117  is matched with a lower end plane of the roller  2141 . The positioning sheet  2117  is connected with the supporting frame  213  through a bolt  2132 , thereby offering a stable structure and convenience in assembling. 
     The embodiments of the present disclosure are described in detail with reference to the accompanying drawings above, but the present disclosure is not limited to the above embodiments, and various changes may also be made within the knowledge scope of those of ordinary skills in the art without departing from the purpose of the present disclosure.