Film tearing device and film pasting equipment

Abstract

The utility model discloses a film tearing device and film pasting equipment, the film tearing device comprises a first support, the first support is provided with a first mounting seat, and the first mounting seat is provided with a first driving part; the bottom film suction nozzle is used for adsorbing a bottom film; the first driving piece is used for driving the film handle platform to move at least in the first direction so as to be close to or away from the bottom film suction nozzle, and the film handle platform is provided with a plurality of second driving pieces; and each second driving piece can independently drive one pressing claw to move at least in the first direction so as to be close to or away from the film handle platform. The requirements of production efficiency and independent release of the protective film in multi-station film pasting can be met.

Description

Technical Field

[0001] This application relates to the field of electronic equipment manufacturing technology, specifically to a film peeling device and a film applying device. Background Technology

[0002] Electronic devices, such as the lenses and screens of mobile phones and tablets (hereinafter collectively referred to as the workpieces to be coated), require protective films. Before applying the film, one side of the protective film is a large base film, and multiple protective films can be applied to each base film. The other side of the protective film has a small film of similar size, each with a handle. During the application process, the protective film (along with the small films attached) must first be peeled off from the base film. Then, the protective film with the small films attached is applied to the workpiece. After application, the small films are peeled off using a clamping mechanism, leaving the remaining protective film on the workpiece.

[0003] For multiple protective films (with smaller films) on a base film, peeling and attaching them one by one would lead to low production efficiency. At the same time, peeling the films could not meet the needs of loosening the protective films one by one for attaching films in a multi-station setting. Utility Model Content

[0004] One objective of this application is to provide a new technical solution for a film-peeling device and a film-applying equipment.

[0005] To achieve the above objectives, in one aspect, embodiments of this application provide a film-tearing device, comprising: a first bracket, the first bracket being mounted with a first mounting base, the first mounting base being mounted with a first driving member; a film handle platform, the first driving member being used to drive the film handle platform to move at least along a first direction to approach or move away from the bottom film suction nozzle, the film handle platform being mounted with a plurality of second driving members; and a plurality of pressure claws, each of the second driving members being capable of independently driving one of the pressure claws to move at least along the first direction to approach or move away from the film handle platform.

[0006] Alternatively, the film-tearing device may further include: a second support, the second support being provided with a second mounting base; an adsorption block, the adsorption block having a first adsorption hole; the adsorption block and the bottom film suction nozzle being mounted on the second mounting base.

[0007] Alternatively, the second bracket may be equipped with a third driving member for driving the second mounting base to move along the first direction.

[0008] Alternatively, the surface of the adsorption block with the first adsorption hole is made of a non-adhesive material.

[0009] Alternatively, the first drive member is used to drive the membrane handle platform to move along the first direction to approach or move away from the bottom membrane nozzle, and has a movement component along the second direction; the first direction intersects the second direction.

[0010] Alternatively, the second drive member is used to drive the pressure claw to move closer to or further away from the membrane handle platform along the first direction, and has a movement component along the second direction.

[0011] Alternatively, the first mounting base and the first bracket can slide in a first direction and a second direction, wherein the first direction intersects the second direction.

[0012] Alternatively, the pressure claw may have a clearance portion.

[0013] Optionally, the film-tearing device further includes: a third bracket, on which a fourth driving member is mounted; a third mounting base, on which a fifth driving member is mounted, the fifth driving member being used to drive the bottom film gripper to be in a clamping or releasing state, and the fourth driving member being used to drive the third mounting base to move along a third direction so that the bottom film gripper approaches or moves away from the bottom film suction nozzle; the first direction intersects with the third direction.

[0014] Alternatively, the film-tearing device may further include a throwing box, wherein after the bottom film gripper moves away from the bottom film suction nozzle, the fifth driving member drives the bottom film gripper to be in a released state to throw the bottom film into the throwing box.

[0015] On the other hand, embodiments of this application also provide a film-applying device, including: a film-tearing device as described in any of the preceding claims; and a film-applying pressure-holding device, wherein the film-applying pressure-holding device is used to apply the protective film torn off by the film-tearing device to the workpiece to be covered with film and to hold it under pressure.

[0016] Optionally, the film-applying pressure-holding device includes: a fixing member, on which a film-applying pressure-holding unit is mounted; a sixth driving member, which drives the fixing member to move; the film-applying pressure-holding unit includes: a seventh driving member, which is mounted on the fixing member; a sliding connector, which is slidably engaged with the fixing member along a first direction, and the seventh driving member drives the sliding connector to slide; a pressure-holding head and a film-applying suction head, which are connected to the sliding connector and spaced apart along a second direction; the film-applying suction head can adsorb the protective film at the avoidance portion of the pressure claw; the first direction intersects the second direction and the third direction in pairs.

[0017] In the embodiments of this application, when the film-tearing device is in operation, the first driving member drives the film handle platform to move at least along the first direction to approach the bottom film suction nozzle, and multiple second driving members drive multiple pressure claws to move along the first direction to approach the film handle platform and press down on multiple film handles. Then, the first driving member drives the film handle platform to move along the first direction to move away from the bottom film suction nozzle. Not only can multiple protective films be torn off at once, but since each second driving member can independently drive a pressure claw, when multi-station film application requires applying protective films one by one, each pressure claw can independently release the film handle (and thus release the protective film), thereby taking into account both production efficiency and the needs of multi-station film application.

[0018] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0020] Figure 1 This is a perspective view of a film-tearing device according to an embodiment of this application.

[0021] Figure 2 This is a side view of a film-tearing device according to an embodiment of this application.

[0022] Figure 3 This is a front view of a film-tearing device according to an embodiment of this application.

[0023] Figure 4 This is a perspective view of a film-peeling device according to another embodiment of this application.

[0024] Figure 5 This is a perspective view of the film-applying pressure-holding unit and the mounting structure of the fixing component in the film-applying pressure-holding device according to an embodiment of this application.

[0025] Figure 6 This is a front view of the film-applying and pressure-holding device and the mounting structure of the fixing component in an embodiment of this application.

[0026] Figure 7 This is a perspective view of the film-applying and pressure-holding device according to an embodiment of this application;

[0027] Figure 8 This is a perspective view of the film application platform according to an embodiment of this application;

[0028] Figure 9 This is a top view of the film application platform according to an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Film-applying pressure-holding device; 101. Fixing component; 1011. Adapter component; 102. Seventh driving component; 103. Sliding connecting component; 104. Film-applying connecting component; 105. Pressure-holding head; 106. Film-applying suction head; 107. First slide rail; 108. Second slide rail; 109. Adapter block; 110. Suction nozzle adjusting component; 111. Suction nozzle; 112. Spring adjusting block; 113. Limiting post; 114. First elastic component; 115. Sensor mounting block; 116. Pressure sensor; 117. Floating joint; 118. Sixth driving component; 119. Ninth driving component; 120. Tenth driving component; 121. First detection unit; 122. Film-applying platform; 123. Workpiece clamping unit; 124. Adjustment platform; 125. Adsorption platform; 126. Second adsorption hole; 127. Positioning unit; 128. Positioning fixture 129. Fixed plate; 130. Third slide rail; 131. Spring fixing plate; 132. Second elastic element; 133. Push block; 134. Second detection unit; 135. Eleventh driving element; 200. Film tearing device; 201. First bracket; 202. First mounting base; 203. Adsorption block; 204. First driving element; 205. Film handle platform; 206. Second driving element; 207. Pressure claw; 208. Second bracket; 209. Third driving element; 210. Second mounting base; 211. Bottom film suction nozzle; 212. First adsorption hole; 213. Avoidance part; 214. Surface; 215. Film handle platform connecting plate; 216. Third driving element connecting plate; 217. Third bracket; 218. Fourth driving element; 219. Third mounting base; 220. Fifth driving element; 221. Bottom film gripper; 222. Second driving element mounting plate. Detailed Implementation

[0031] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0032] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0033] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0034] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0036] In the following description, “connection” includes both direct connection between the two and indirect connection between the two through, for example, adapters, middleware, etc.

[0037] In the following description, the protective film, the workpiece to be coated, the base film, and the film handle are used only to illustrate the working principle of the film peeling device, the film coating and pressure holding device, and the film coating equipment, and should not be regarded as part of any device or equipment.

[0038] In the following description, the driving component can take the form of motor drive, cylinder drive, etc.

[0039] In the following description, the first direction, the second direction, and the third direction are the directions in which the space intersects in pairs.

[0040] like Figures 1 to 3 As shown, in one embodiment of this application, the film-tearing device 200 includes: a first support 201, the first support 201 being provided with a first mounting base 202, the first mounting base 202 being equipped with a first driving member 204; a bottom film suction nozzle 211, the bottom film suction nozzle 211 being used to adsorb the bottom film; a film handle platform 205, the first driving member 204 being used to drive the film handle platform 205 to move at least along a first direction to approach or move away from the bottom film suction nozzle 211, the film handle platform 205 being equipped with a plurality of second driving members 206; and a plurality of pressure claws 207, each of the second driving members 206 being capable of independently driving one of the pressure claws 207 to move at least along the first direction to approach or move away from the film handle platform 205.

[0041] Specifically, the first mounting base 202 is provided on the first support 201 in the following ways: the first mounting base 202 can be fixedly mounted on the first support 201; or the first mounting base 202 is configured to slide and engage with the first support 201, and can be manually adjusted to a suitable position before use and then fixed; or the first support 201 is configured to support the first mounting base 202 through a drive structure of a twelfth driving member (not shown in the figure), so that the first mounting base 202 does not directly connect or engage with the first support 201, and the position of the first mounting base 202 relative to the first support 201 is adjusted by driving the twelfth driving member. The first mounting base 202 is equipped with a first driving member 204 and is used to support structures such as the membrane handle platform 205. The bottom membrane suction nozzle 211 is externally connected to a negative pressure mechanism (not shown in the figure). When the negative pressure mechanism is working, the bottom membrane suction nozzle 211 can generate negative pressure to adsorb the bottom membrane. The bottom membrane suction nozzle 211 can be mounted on the first support 201, or it can be mounted on the second support 208 as described below. The first driving member 204 mounted on the first mounting base 202 can drive the membrane handle platform connecting plate 215, which is connected to the membrane handle platform 205. Alternatively, the first driving member 204 can directly drive the membrane handle platform 205. The membrane handle platform 205 is used to overlap the membrane handle of the small membrane on the protective film. A second driving member mounting plate 222 is mounted on the membrane handle platform 205, and the second driving member mounting plate 222 is connected to the second driving member 206. In this embodiment, the second driving member mounting plate 222 is equipped with four second driving members 206. The number of second driving members 206 can be increased or decreased as needed, but should be at least two. The film tearing device 200 also includes a plurality of pressure claws 207, the number of which is the same as the number of second driving members 206, so that each second driving member 206 can independently drive one pressure claw 207.

[0042] Preferably, the mounting position of the second drive member 206 on the second drive member mounting plate 222 is adjustable to control the distance between the pressure claw 207 and the membrane handle platform 205 in the initial position. Similarly, the connection position of the first drive member 204 and the membrane handle platform connecting plate 215 is adjustable to accommodate adsorption blocks 203 at different heights in the first direction.

[0043] During operation, the feeding mechanism places the bottom film with multiple protective films attached at the position of the bottom film suction nozzle 211. The bottom film suction nozzle 211 then adsorbs the bottom film, with the small film handles attached to the protective film facing the film handle platform 205. In one embodiment, the first mounting base 202 and the first support 201 are slidably engaged, and their relative positions can be adjusted along a second direction. After adjusting to a suitable position, the first driving member 204 then drives the film handle platform 205. In another embodiment, the twelfth driving member drives the first mounting base 202 to move relative to the first support 201 along the second direction. After reaching a suitable position, the first driving member 204 then drives the film handle platform 205. The first driving member 204 drives the film handle platform 205 to move at least along the first direction indicated by the arrow in the figure, approaching the bottom film suction nozzle 211 in the first direction, preferably reaching a position where the height of the film handle platform 205 and the adsorption block 203 is the same in the first direction, until the film handle overlaps the film handle platform 205. Next, the second drive unit 206 drives the pressure claw 207 to move along the first direction closer to the film handle platform 205, and the pressure claw 207 presses the film handle firmly onto the film handle platform 205. Next, the first drive unit 204 continues to drive the film handle platform 205 to move along the direction indicated by the arrow in the first direction. The film handle platform 205 and the pressure claw 207 move away from the bottom film suction nozzle 211 in the first direction, and correspondingly away from the bottom film, thus peeling the protective film along with the small film off the bottom film. In the case of multi-station film application, when the film application and pressure holding device 100 described below needs to pick up any one of the protective films, the second drive unit 206 corresponding to that protective film can independently drive one pressure claw 207 to move along the first direction away from the film handle platform 205, releasing the pressed film handle, so that the protective film is sucked away and attached to the workpiece to be filmed. After all the second drive components 206 drive the pressure claws 207 to release the membrane handle, the first drive component 204 can drive the membrane handle platform 205 to move in the opposite direction to the direction indicated by the arrow in the first direction. The membrane handle platform 205 first approaches the bottom membrane suction nozzle 211, then moves away from the bottom membrane suction nozzle 211, and then returns to the initial position to enter the next working cycle. After the protective film on the bottom membrane is torn off, the bottom membrane suction nozzle 211 disconnects from the suction, and the bottom membrane is discarded as waste, waiting for the next bottom membrane material with a protective film attached. In this document, "multiple" refers to at least two in quantity.

[0044] As can be seen from the above description, the film-tearing device 200 in this embodiment can not only tear off multiple protective films at once, but also, since each second driving member 206 can independently drive a pressure claw 207, when the protective film needs to be applied one by one in multi-station film application, each pressure claw 207 can independently release the film handle (and thus release the protective film), thereby taking into account both production efficiency and the needs of multi-station film application.

[0045] like Figures 1 to 3As shown, the film-tearing device 200 in one embodiment of this application further includes: a second support 208, the second support 208 being provided with a second mounting base 210; an adsorption block 203, the adsorption block 203 having a first adsorption hole 212; the adsorption block and the bottom film suction nozzle 211 being mounted on the second mounting base 210.

[0046] Specifically, in the embodiments of this application, the bottom film suction nozzle 211 is mounted on a separate second bracket 208, rather than on the first bracket 201. This facilitates adjusting the initial distance between the membrane handle platform 205 and the bottom film suction nozzle 211 according to the site conditions, improving versatility. An external negative pressure mechanism (not shown in the figure) is connected to the adsorption block 203. The adsorption block 203 has a first adsorption hole 212. When the negative pressure mechanism is working, negative pressure is generated near the first adsorption hole 212. The adsorption block 203 can both support the bottom film before the bottom film waste is thrown out and adsorb the protective film after the bottom film waste is thrown out and before the pressure claw 207 is released, so that the protective film remains flat after being torn off. Both the adsorption block 203 and the bottom film suction nozzle 211 are mounted on the second mounting base 210, which is fixed to the second bracket 208, or indirectly mounted on the second bracket 208 by connecting to the third driving member 209 mounted on the second bracket 208 as described below.

[0047] During operation, the feeding mechanism places the bottom film with multiple protective films attached at the position of the bottom film suction nozzle 211. The bottom film is supported by the suction block 203, and the bottom film suction nozzle 211 works to suction the bottom film. The small film handles on the protective film face the film handle platform 205. At this time, the first suction hole 212 on the suction block 203 may or may not be active. The first driving member 204 drives the film handle platform 205 to move at least in the direction indicated by the arrow in the figure in the first direction, approaching the bottom film suction nozzle 211 in the first direction, preferably until the height of the film handle platform 205 is consistent with that of the suction block 203 in the first direction, so that the film handle overlaps on the film handle platform 205. Next, the second driving member 206 drives the pressure claw 207 to move in the first direction and approach the film handle platform 205, and the pressure claw 207 presses the film handle tightly onto the film handle platform 205. Next, the first driving component 204 continues to drive the membrane handle platform 205 to move in the direction indicated by the arrow in the first direction. The membrane handle platform 205 and the pressure claw 207 move away from the bottom membrane suction nozzle 211 in the first direction. Therefore, the membrane handle platform 205 and the bottom membrane suction nozzle 211 move away from each other, tearing the protective film off the bottom membrane. After tearing the film, the bottom membrane suction nozzle 211 disconnects from the adsorption of the bottom membrane waste. After the waste is thrown off, the first driving component 204 drives the membrane handle platform 205 to move in the opposite direction of the arrow in the first direction and approach the adsorption block 203. The adsorption block 203 works. Since the pressure claw 207 and the membrane handle platform 205 are pressing the membrane handle at this time, the protective film will enter the state of being supported by the surface 214 of the adsorption block 203 from the suspended state. The first adsorption hole 212 on the surface 214 begins to adsorb the protective film, ensuring the flatness of the protective film. In multi-station film application, when the film application and pressure holding device 100 needs to pick up any one of the protective films, the second driving member 206 corresponding to that protective film can independently drive one pressure claw 207 to move away from the film handle platform 205 along the first direction, releasing the pressed film handle. The first suction hole 212 also disconnects from the suction of the protective film, allowing the protective film to be sucked away and attached to the workpiece to be filmed. After all the second driving members 206 drive the pressure claws 207 to release the film handle, the first driving member 204 can drive the film handle platform 205 to move in the opposite direction to the arrow in the first direction. The film handle platform 205 first approaches the bottom film suction nozzle 211, and then moves away from the bottom film suction nozzle 211. After the protective film is sucked away by the film application and pressure holding device 100, the bottom film suction nozzle 211 and the suction block 203 enter the next working cycle.

[0048] like Figures 1 to 4 As shown, the second bracket 208 is equipped with a third driving member 209, which is used to drive the second mounting base 210 to move along the first direction.

[0049] Specifically, a third driving component 209 is mounted on the second bracket 208. The third driving component 209 drives the second mounting base 210 via a third driving component connecting plate 216. Alternatively, the moving end of the third driving component 209 can be directly connected to the second mounting base 210 to drive it. The third driving component 209 drives the second mounting base 210 to move along the first direction, causing the bottom film suction nozzle 211 and the adsorption block 203 to also move along the first direction. Therefore, the adsorption block 203 and the bottom film suction nozzle 211 can move synchronously with the second mounting base 210, which helps to speed up the film peeling process.

[0050] During operation, the feeding mechanism places the bottom film with multiple protective films attached at the bottom film suction nozzle 211. The bottom film is supported by the suction block 203, and the bottom film suction nozzle 211 works to suction the bottom film. The small film handles on the protective films face the film handle platform 205. At this time, the first suction hole 212 on the suction block 203 can be activated or deactivated. The first driving member 204 drives the film handle platform 205 to move in the direction indicated by the arrow in the figure along the first direction, approaching the bottom film suction nozzle 211 in the first direction, preferably until the height of the film handle platform 205 and the suction block 203 are consistent in the first direction, so that the film handle overlaps on the film handle platform 205. Next, the second driving member 206 drives the pressure claw 207 to move along the first direction and approach the film handle platform 205, and the pressure claw 207 presses the film handle tightly onto the film handle platform 205. Next, the first driving member 204 continues to drive the membrane handle platform 205 to move in the direction indicated by the arrow in the first direction. The membrane handle platform 205 and the pressure claw 207 move away from the bottom membrane suction nozzle 211 in the first direction. The third driving member 209 drives the second mounting base 210 to move in the opposite direction to the direction indicated by the arrow in the first direction. Correspondingly, the bottom membrane suction nozzle 211 and the adsorption block 203 also move in the opposite direction to the direction indicated by the arrow in the first direction. Therefore, the membrane handle platform 205 and the bottom membrane suction nozzle 211 move away from each other, and the protective film along with the small film is peeled off from the bottom film. This is more efficient than the membrane handle platform 205 moving alone. After the film is peeled off, the bottom film suction nozzle 211 disconnects from the adsorption of the bottom film waste. After the waste is thrown out, the third driving component 209 drives the second mounting base 210 to move in the direction indicated by the arrow in the first direction. Since the pressure claw 207 and the film handle platform 205 are pressing the film handle at this time, the protective film will enter the state of being supported by the surface 214 of the adsorption block 203 from the suspended state. The first adsorption hole 212 on the surface 214 begins to adsorb the protective film, ensuring the flatness of the protective film. In the case of multi-station film application, when the film application and pressure holding device 100 described below needs to pick up any one of the protective films, the second driving component 206 corresponding to this protective film can independently drive one pressure claw 207 to move away from the film handle platform 205 in the first direction, releasing the pressed film handle. The first adsorption hole 212 also disconnects from the adsorption of the protective film, so that the protective film is sucked away and attached to the workpiece to be applied. After all the second driving components 206 drive the pressure claws 207 to release the film handle, the first driving component 204 can drive the film handle platform 205 to move in the opposite direction to the direction indicated by the arrow in the first direction. The film handle platform 205 first approaches the bottom film suction nozzle 211, then moves away from the bottom film suction nozzle 211, and the film handle platform 205 returns to the initial position to enter the next working cycle. Similarly, the third driving component 209 also drives the second mounting base 210 to move back to the initial position in the first direction, or the first suction hole 212 adsorbs the protective film just when the second mounting base 210 returns to the initial position. After the protective film is sucked away by the film application and pressure holding device 100, the bottom film suction nozzle 211 and the suction block 203 enter the next working cycle.

[0051] In the embodiments of this application, the surface 214 of the adsorption block 203 with the first adsorption hole 212 is made of a non-adhesive material.

[0052] Specifically, the surface 214 of the adsorption block 203 can be coated with materials such as Teflon or polytetrafluoroethylene, or the entire adsorption block 203 can be made of silicone or polytetrafluoroethylene, making it difficult for adhesive to adhere to the surface 214 where the first adsorption hole 212 is located. The advantage of this is that it can prevent the adhesive protective film (because it needs to be adhered to the base film) from sticking to the surface 214 of the adsorption block 203, thus avoiding the protective film from being difficult to detach from the adsorption block 203 or from forming wrinkles.

[0053] like Figure 2 As shown, in one embodiment of this application, the first driving member 204 is used to drive the membrane handle platform 205 to move along the first direction to approach or move away from the bottom membrane suction nozzle 211, and has a movement component along the second direction. The first direction intersects the second direction.

[0054] Specifically, taking the first driving component 204 as an example, the surface of the cylinder body on which the first mounting base 202 mounts the first driving component 204 is an inclined plane. Therefore, when the piston rod of the first driving component 204 extends and retracts, it has both a second-direction movement component and a first-direction movement component. Thus, when the first driving component 204 drives the membrane handle platform 205, the membrane handle platform 205 has both a second-direction movement component and a first-direction movement component, so that the membrane handle platform can simultaneously approach the bottom membrane suction nozzle 211 in the second and first directions, thereby accelerating the overlap speed with the membrane handle.

[0055] like Figure 2 As shown, in one embodiment of this application, the second driving member 206 is used to drive the pressure claw 207 to move closer to or further away from the membrane handle platform 205 along the first direction, and has a movement component along the second direction.

[0056] Specifically, taking the second driving member 206 as an example where a cylinder is used, since the surface of the mounting plate 222 for mounting the second driving member 206 is an inclined plane, when the piston rod of the second driving member 206 extends or retracts, it has both a movement component along the second direction and a movement component along the first direction. Therefore, when the pressure claw 207 is driven by the second driving member 206, it will also have movement components along both the second and first directions simultaneously. This helps the pressure claw 207 avoid interfering with the overlap between the membrane handle and the membrane handle platform 205 before operation, and quickly presses the membrane handle after the membrane handle overlaps with the membrane handle platform 205.

[0057] like Figure 1As shown, the first mounting base 202 and the first bracket 201 are slidably engaged along the first direction and the second direction. The first direction intersects the second direction.

[0058] Specifically, the first mounting base 202 is provided with a slide rail, and the first bracket 201 has a slide groove. The slide groove and the slide rail cooperate to achieve a sliding engagement between the two. Alternatively, the first mounting base 202 and the first bracket 201 can also achieve a sliding engagement through a linear guide slider mechanism. The sliding engagement between the first mounting base 202 and the first bracket 201 along the first and second directions allows for smoother movement of the first mounting base 202 in both directions, facilitating the adjustment of the first mounting base 202 to a suitable position.

[0059] like Figure 1 and Figure 3 As shown, in one embodiment of this application, the pressure claw 207 has a clearance portion 213.

[0060] Specifically, the clearance portion 213 can be formed by opening a hole in the pressure claw 207, or it can be formed by removing part of the material from the pressure claw 207. The function of the clearance portion 213 is to prevent the film application suction head 106 from adsorbing the protective film.

[0061] like Figure 4 As shown, another embodiment of the film-tearing device 200 of this application further includes: a third bracket 217, on which a fourth driving member 218 is mounted; a third mounting base 219, on which a fifth driving member 220 is mounted, the fifth driving member 220 being used to drive the bottom film gripper 221 into a clamping or releasing state, and the fourth driving member 218 being used to drive the third mounting base 219 to move along a third direction, so that the bottom film gripper 221 approaches or moves away from the bottom film suction nozzle 211. The second direction, the first direction, and the third direction intersect each other.

[0062] Specifically, the fourth drive member 218 on the third bracket 217 can drive the third mounting base 219 to move in a third direction, thus driving the fifth drive member 220 to move the bottom film gripper 221 in a third direction to move closer to or further away from the bottom film suction nozzle 211. The bottom film gripper 221 is used to clamp the bottom film after it has been torn off.

[0063] During operation, after the protective film on the bottom film adsorbed by the bottom film suction nozzle 211 is completely removed, the fourth drive component 218 drives the third mounting base 219 to move in a third direction, and the bottom film gripper 221 approaches the bottom film suction nozzle 211. The fifth drive component 220 drives the bottom film gripper 221 from a loose state to a clamping state, clamping the bottom film waste. Then, the bottom film suction nozzle 211 disconnects from the bottom film waste, and the fourth drive component 218 drives the third mounting base 219 to move in a third direction, moving the bottom film gripper 221 away from the bottom film suction nozzle 211, thus removing the bottom film waste. Finally, the fifth drive component 220 drives the bottom film gripper 221 to release, discarding the bottom film waste.

[0064] In one embodiment of this application, the film-tearing device 200 further includes a throwing box (not shown in the figure). After the bottom film gripper 221 moves away from the bottom film suction nozzle 211, the fifth driving member 220 drives the bottom film gripper 221 to be in a released state so as to throw the bottom film into the throwing box.

[0065] Specifically, the waste collection box is used to collect waste material from the bottom film to prevent environmental pollution.

[0066] According to another aspect of this application, a film-applying device is also provided, comprising: a film-tearing device 200 as described above; and a film-applying pressure-holding device 100, wherein the film-applying pressure-holding device 100 is used to apply the protective film torn off by the film-tearing device 200 to the workpiece to be covered and to hold it under pressure.

[0067] Specifically, in the embodiments described below, the number of film-applying suction heads 106 in the film-applying and pressure-holding device 100 corresponds to the number of pressure claws 207. In other embodiments of this application, the number of film-applying suction heads 106 may differ from the number of pressure claws 207. The function of the film-applying and pressure-holding device 100 is to suck up the protective film (along with the small film) torn off by the film-tearing device 200 and transfer it to the film-applying and pressure-holding station, then attach the protective film to the workpiece to be film-applied and hold it under pressure.

[0068] like Figures 5 to 8 As shown, the film-applying and pressure-holding device 100 in this embodiment includes: a fixing member 101, on which a film-applying and pressure-holding unit is mounted; and a sixth driving member 118, which is used to drive the fixing member 101 to move.

[0069] The film-applying and pressure-holding unit includes: a seventh driving member 102, which is mounted on the fixing member 101; a sliding connector 103, which is slidably engaged with the fixing member 101 along a first direction, and the seventh driving member 102 is used to drive the sliding connector 103 to slide; a pressure-holding head 105 and a film-applying suction head 106, which are connected to the sliding connector 103 and spaced apart along a second direction; the film-applying suction head 106 can adsorb the protective film at the avoidance portion 213 of the pressure claw 207.

[0070] Specifically, the function of the film-applying and pressure-holding unit is to pick up the protective film (with a small film), attach the protective film to the workpiece to be coated, and apply pressure to the protective film for pressure holding. The fixing member 101 is not absolutely stationary, but rather relative to the sliding connector 103. The fixing member 101 is defined as a relatively fixed structural component. In actual operation, the sixth driving member 118 can use a robotic arm to drive the fixing member 101 to move, and the fixing member 101 will correspondingly drive the film-applying and pressure-holding unit to move. The robotic arm can have three-dimensional spatial motion freedom. The sixth driving member 118 can also include, as described below, a ninth driving member 119, a tenth driving member 120, and an eleventh driving member 134, which drive the fixing member 101 to move. The sixth driving member 118 can drive the fixing member 101 to move or rotate in one direction, two directions, or three directions, with the aim of moving the film-applying and pressure-holding unit to the desired working position.

[0071] like Figure 5 and Figure 6As shown, in one embodiment of this application, the seventh driving member 102 in the film-applying pressure-holding unit is mounted on the adapter 1011, and the adapter 1011 is then fixedly connected to the fixing member 101. The adapter 1011 is considered part of the fixing member 101, and therefore is still considered as the seventh driving member 102 mounted on the fixing member 101. In other embodiments of this application, the fixing member 101 may be an L-shaped plate. In one embodiment of this application, the fixing member 101 is equipped with a first slide rail 107 extending along a first direction, and the sliding connector 103 is equipped with a slider. The sliding connection between the sliding connector 103 and the fixing member 101 along the first direction is achieved through the cooperation of the first slide rail 107 and the slider. In other embodiments of this application, the fixing member 101 is equipped with a slider, and the sliding connector 103 is equipped with a first slide rail 107 extending along a first direction. The sliding connection between the sliding connector 103 and the fixing member 101 along the first direction is achieved through the cooperation of the first slide rail 107 and the slider. Taking the seventh driving component 102 as an example, which uses a cylinder, the moving end of the cylinder is connected to the sliding connector 103. The extension and retraction of the cylinder piston rod can drive the sliding connector 103 to slide relative to the fixed component 101 in the first direction. The seventh driving component 102 can also use a motor screw mechanism or other similar means to drive the sliding connector 103 to slide in the first direction.

[0072] The film-applying suction head 106 is used to pick up the protective film, and the pressure-holding head 105 is used to apply pressure to the protective film attached to the workpiece to ensure the flatness of the bonding surface and the completeness of the application. Therefore, in this embodiment, film application and pressure holding are two different structures. In this embodiment, the pressure-holding head 105 and the film-applying suction head 106 are indirectly connected to the sliding connector 103 through the film-applying connector 104. In other embodiments of this application, the pressure-holding head and the film-applying suction head 106 can also be directly connected to the sliding connector 103. The pressure-holding head 105 and the film-applying suction head 106 are spaced apart along the second direction.

[0073] During operation, after the film-peeling device 200 peels the protective film from the base film, the film-applying suction head 106 reaches the position of the clearance part 213 of the pressure claw 207, picks up the protective film, and the pressure claw 207 releases the film handle, so the first suction hole 212 no longer picks up the protective film. The film-applying suction head 106 moves with the protective film adsorbed, reaching the film-applying position on the workpiece to be filmed. Then, the seventh driving member 102 drives the sliding connector 103 to slide along the first direction. The sliding connector 103 drives the film-applying suction head 106 to slide along the first direction, attaching the protective film to the film-applying position on the workpiece. Then, the seventh driving member 102 drives the sliding connector 103 to return along the first direction, and the sixth driving member 118 drives the fixing member 101 to move along the second direction. The fixing member 101 drives the sliding connector 103, the pressure holding head 105, and the film-applying suction head 106 to move along the second direction. The film applicator 106 is no longer aligned with the position to be applied, while the pressure holding head 105, being spaced apart from the film applicator 106 along the second direction, is aligned with the position to be applied (the film application is now complete). Then, the seventh drive member 102 drives the sliding connector 103 to slide along the first direction again. The sliding connector 103 drives the pressure holding head 105 to slide along the first direction, applying pressure to the protective film along the first direction for pressure holding.

[0074] As can be seen from the above description, since the pressure holding head 105 and the film application suction head 106 are spaced apart on the sliding connector 103 along the second direction, they can share a set of positioning and driving mechanisms. After the film application suction head 106 completes the film application, the sixth driving member 118 can immediately drive the pressure holding head 105 to align with the position to be applied and then perform pressure holding. There is no need to transfer the workpiece to be applied, which is highly efficient and has a good pressure holding effect.

[0075] like Figure 5 and Figure 6 As shown, in one embodiment of this application, the film-applying pressure-holding unit further includes a film-applying connector 104. The film-applying connector 104 and the sliding connector 103 are slidably engaged along the first direction, and the pressure-holding head 105 and the film-applying suction head 106 are connected to the film-applying connector 104.

[0076] Specifically, in one embodiment of this application, a second slide rail 108 extending along a first direction is mounted on the sliding connector 103, and a slider is mounted on the film-applying connector 104, with the slider slidingly engaged with the second slide rail 108. In another embodiment of this application, a slider is mounted on the sliding connector 103, and a second slide rail 108 extending along a first direction is mounted on the film-applying connector 104, with the slider slidingly engaged with the second slide rail 108. The pressure-holding head 105 and the film-applying suction head 106 are first mounted on the adapter block 109, and the adapter block 109 is then connected to the film-applying connector 104. The adapter block 109 can be considered as part of the film-applying connector 104; therefore, the pressure-holding head 105 and the film-applying suction head 106 are indirectly connected to the film-applying connector 104. In other embodiments of this application, the pressure-holding head 105 and the film-applying suction head 106 can also be directly connected to the film-applying connector 104.

[0077] During operation, when the seventh driving member 102 drives the sliding connector 103 to move along the first direction, after the film-applying suction head 106 or the pressure-holding head 105 comes into contact with the film-applying workpiece, the film-applying connector 104 can slide relative to the sliding connector 103 along the first direction, thereby providing a buffer for the film-applying suction head 106 or the pressure-holding head 105 and preventing the film-applying suction head 106 from being damaged due to excessive pressure.

[0078] In one embodiment of this application, the film applicator 106 and the pressure holding head 105 can be connected to the film applicator 104 or the sliding connector 103 via a quick-release structure, thereby allowing different film applicators 106 and pressure holding heads 105 to be replaced according to different workpiece types or sizes.

[0079] like Figure 5 and Figure 6 As shown in the embodiment of this application, the film-applying pressure-holding unit further includes a suction nozzle adjustment member 110. The suction nozzle adjustment member 110 is equipped with a suction nozzle 111, and the suction nozzle adjustment member 110 is connected to the film-applying connector 104. The suction nozzle adjustment member 110 can adjust the relative position of the suction nozzle 111 and the film-applying suction head 106 in the first direction.

[0080] Specifically, the suction nozzle 111 is used to adsorb the small film handles on the protective film and works in conjunction with the film application nozzle 106. In one embodiment of this application, the suction nozzle adjusting member 110 can have different through holes along the first direction. After the pin is inserted into different through holes and connected to the film application connector 104, the relative position of the suction nozzle 111 and the film application nozzle 106 in the first direction can be adjusted, thereby adapting to protective films of more shapes. In other embodiments of this application, the suction nozzle adjusting member 110 can be threadedly connected to the film application connector 104 via a screw. Rotating the screw can adjust the relative position of the suction nozzle 111 and the film application nozzle 106 in the first direction. The suction nozzle adjusting member 110 can be directly or indirectly connected to the film application connector 104.

[0081] like Figure 6 As shown in the embodiment of this application, the film-applying pressure-holding unit further includes a spring adjusting block 112, which is fixedly connected to the sliding connector 103. A first elastic element 114 is provided between the spring adjusting block 112 and the limiting post 113. The limiting post 113 can abut against the film-applying connector 104 to apply pressure along the first direction to the pressure-holding head 105.

[0082] Specifically, after the spring adjusting block 112 is fixedly connected to the sliding connector 103, it can apply pressure in the first direction to the film-applying connector 104 through the first elastic element 114 and the limiting post 113, thus applying pressure in the first direction to the pressure-holding head 105. The spring adjusting block 112 can adjust the preload of the first elastic element 114 by adjusting the length of the screw mounted on it, or by slidingly engaging with the limiting post 113 and adjusting the nut on the limiting post 113 to adjust the preload of the first elastic element 114. The first elastic element 114 presses against the limiting post 113, and the limiting post 113 then directly or indirectly abuts against the film-applying connector 104, thereby applying pressure in the first direction to the pressure-holding head 105 and the film-applying suction head 106.

[0083] When the pressure-holding head 105 needs to apply pressure to the protective film during operation, the seventh driving member 102 drives the sliding connector 103 to slide along the first direction. After the pressure-holding head 105 contacts the protective film attached to the workpiece to be covered, as the sliding connector 103 continues to slide, the film-applying connector 104 overcomes the elastic force of the first elastic member 114 and slides relative to the sliding connector 103. The pressure-holding head 105 is buffered, and while providing pressure, it avoids damaging the workpiece to be covered.

[0084] like Figure 6 As shown in the embodiment of this application, the film-applying pressure-holding unit further includes a sensor mounting block 115, on which a pressure sensor 116 is mounted. The sensor mounting block 115 is fixedly connected to the film-applying connector 104, and the limiting post 113 can abut against the pressure sensor 116. The pressure sensor 116 is electrically connected to the seventh driving member 102.

[0085] Specifically, the sensor mounting block 115 is fixedly connected to the film-applying connector 104, and the pressure sensor 116 is mounted on the sensor mounting block 115. Therefore, after the limiting post 113 abuts against the pressure sensor 116, it is equivalent to indirectly abutting against the film-applying connector 104. During the pressure-holding head 105 pressurizes the protective film, as the seventh driving member 102 drives the sliding connector 103 to slide along the first direction, the film-applying connector 104 slides relative to the sliding connector 103 along the first direction, and the first elastic member 114 is further compressed. The pressure sensor 116 can detect the magnitude of the pressure applied to the first elastic member 114. When the pressure reaches the pressurization value, the pressure sensor 116 transmits an electrical signal to the seventh driving member 102, and the seventh driving member 102 stops driving, maintaining the pressure of the pressurization head 105 to ensure consistent pressurization of the protective film.

[0086] like Figure 5 and Figure 6 As shown, in an embodiment of this application, the seventh driving member 102 and the sliding connector 103 are connected by a floating joint 117.

[0087] Specifically, the seventh driving component 102 is connected to the sliding connector 103 through a floating joint 117, which can compensate for the installation error of the seventh driving component 102 or the error caused by vibration during the driving process, ensure the smooth movement of the sliding connector 103, further ensure the smooth process of the film-applying suction head 106 picking up and applying the protective film, and ensure the stable pressure holding of the pressure holding head 105.

[0088] In the embodiments of this application, the pressure holding head 105 is made of aluminum alloy and is covered with silicone.

[0089] Specifically, the pressure-holding head 105, made of aluminum alloy, ensures dimensional accuracy, and the silicone coating ensures that the protective film will not be damaged during the pressure-holding process.

[0090] like Figure 5 and Figure 6 As shown in the embodiments of this application, the fastener 101 is equipped with a plurality of film-applying pressure-holding units.

[0091] Specifically, the fixing member 101 is equipped with multiple (i.e., at least two) film-applying and pressure-holding units. The film-applying suction head 106 and the pressure-holding head 105 in each film-applying and pressure-holding unit can be driven independently, which can improve and ensure the film-applying accuracy when multiple workpieces need to be film-applied. Furthermore, by adjusting the spring adjusting block 112, the pressure-holding consistency of multiple film-applying and pressure-holding units can also be ensured.

[0092] like Figure 7As shown in the embodiments of this application, the film-applying and pressure-holding device 100 further includes: a film-applying platform 122, wherein the film-applying platform 122 is provided with a plurality of workpiece clamping units 123 to be applied with film; the film-applying and pressure-holding units correspond one-to-one with the workpiece clamping units 123 to be applied with film.

[0093] Specifically, the number of multiple (i.e., at least two) workpiece clamping units 123 on the film application platform 122 can be the same as the number of film application and pressure holding units. For example, in... Figure 5 and Figure 7 In the illustrated embodiment, there are four film-applying pressure-holding units and four workpiece clamping units 123, the specific number of which can be increased or decreased as needed. Each film-applying pressure-holding unit corresponds one-to-one with each workpiece clamping unit 123, meaning that the film-applying suction head 106 of one film-applying pressure-holding unit can apply film to a workpiece clamped in one workpiece clamping unit 123, and the pressure-holding head 105 of the film-applying pressure-holding unit can maintain pressure on the protective film applied to the workpiece clamped in the workpiece clamping unit 123. Thus, a single drive of the sixth driving member 118 can apply film and maintain pressure on multiple workpieces. Since the fixing member 101 is equipped with multiple film-applying pressure-holding units, each film-applying pressure-holding unit can apply film and maintain pressure on the workpieces clamped in the workpiece clamping unit 123 one by one.

[0094] like Figure 8 and Figure 9 As shown in this embodiment, the film-applying platform 122 is equipped with an adjustment platform 124, and the adjustment platform 124 is equipped with an adsorption platform 125. The workpiece clamping unit 123 includes: a second adsorption hole 126 and a positioning unit 127 disposed on the adsorption platform 125; a positioning fixing plate 128 slidably engaged with the adjustment platform 124; a push block 132 slidably engaged with the positioning fixing plate 128; a spring fixing plate 130 fixedly connected to the positioning fixing plate 128; and a second elastic member 131 disposed between the push block 132 and the spring fixing plate 130. The film-applying platform 122 is also equipped with an eighth driving member, which is used to drive the positioning fixing plate 128 closer to or further away from the adsorption platform 125.

[0095] Specifically, the adjustment platform 124 is mounted on the film-applying platform 122. Its levelness can be adjusted using wedges, set screws, etc., or it can be fixed to the film-applying platform 122 to support the adsorption platform 125, the workpiece clamping unit 123, etc. The adsorption platform 125 is mounted on the adjustment platform 124 and connected to an external negative pressure mechanism (not shown in the figure). When the negative pressure mechanism operates, negative pressure is generated at the second adsorption hole 126 on the adsorption platform 125 to adsorb the workpiece to be applied. A positioning unit 127 is also provided on the adsorption platform 125. The positioning unit 127 can be a positioning pin, positioning block, etc., arranged around the second adsorption hole 126 for positioning the workpiece to be applied. The positioning fixing plate 128 slides along the second direction with the adjustment platform 124 via a third slide rail 129. The push block 132 slides along the second direction with the positioning fixing plate 128. A second elastic element 131 is provided between the push block 132 and the spring fixing plate 130. The film application platform 122 is also equipped with an eighth driving component (not shown in the figure), which can drive the positioning and fixing plate 128 to move closer to or further away from the adsorption platform 125 in the second direction.

[0096] The working process of the workpiece clamping unit 123 to be coated is as follows:

[0097] After the workpiece to be coated is placed on the adjustment platform 124, the positioning unit 127 positions the workpiece. The eighth driving member drives the positioning fixing plate 128 to approach the adsorption platform 125 along the second direction. The push block 132 thus pushes the workpiece to be coated along the second direction. During this process, the second elastic member 131 provides cushioning for the push block 132. Finally, the workpiece to be coated is clamped by the push block 132 and the positioning unit 127, and the second adsorption hole 126 adsorbs the workpiece.

[0098] like Figures 5 to 7 As shown, the film-applying and pressure-holding device 100 of the embodiment of this application further includes a first detection unit 121. The first detection unit 121 is used to detect the position of the protective film and the position of the film to be applied. The first detection unit 121 is electrically connected to the controller. The controller controls the sixth driving member 118 to drive the fixing member 101 to move so that the film-applying suction head 106 reaches the position of the protective film or the position of the film to be applied.

[0099] Specifically, the first detection unit 121 can employ a CCD (Charge Coupled Device) camera, laser sensor, etc., to detect the position of the protective film and the position of the film to be applied. The first detection unit 121 transmits the protective film position signal and the film-to-be-applied position signal to the controller. The controller drives the sixth driving member 118 based on these signals. The sixth driving member 118 then drives the fixing member 101 to move based on these signals, enabling the film-applying suction head 106 to accurately reach the protective film position, pick up the protective film, and then reach the film-to-be-applied position to apply the protective film to the workpiece. Alternatively, it can bring the pressure-holding head 105 to the film-to-be-applied position, and then the seventh driving member 102 drives the pressure-holding head 105 to maintain pressure. The entire process of protective film pickup, application, and pressure holding is accurate. Using a controller to control the movement of the driving members to reach the target position is existing technology and will not be described in detail here.

[0100] In one embodiment of this application, the sixth driving member 118 includes a ninth driving member 119, a tenth driving member 120, and an eleventh driving member 134. The ninth driving member 119, tenth driving member 120, and eleventh driving member 134 can be three independent cylinders. The moving end of the ninth driving member 119 is connected to the moving end of the eleventh driving member 134, the tenth driving member 120 is connected to the moving end of the ninth driving member 119, and the moving end of the tenth driving member 120 is connected to the fixing member 101. In this case, the movement of the ninth driving member 119, tenth driving member 120, and eleventh driving member 134 can realize the three-way translational drive of the sixth driving member 118. As mentioned above, in other embodiments of this application, the sixth driving member 118 can also be a robotic arm.

[0101] like Figure 7 As shown in the embodiments of this application, the film-applying pressure-holding device further includes a second detection unit 133. The second detection unit 133 is used to detect whether the protective film adsorbed by the film-applying suction head 106 is offset. When the second detection unit 133 detects that the protective film is offset, the film-applying suction head 106 disconnects from adsorbing the protective film.

[0102] Specifically, the second detection unit 133 can employ a CCD (Charge Coupled Device) camera, laser sensor, etc., and is positioned on the film application platform 122, or on the ground or elsewhere below the film application nozzle in the first direction, to detect whether the protective film adsorbed by the film application nozzle 106 has shifted. After the film application nozzle 106 adsorbs and applies the film, the movement path of each film application nozzle 106 passes above the second detection unit 133. When the second detection unit 133 detects that the protective film adsorbed by the film application nozzle 106 has shifted, it can send an electrical signal to the film application pressure holding unit. Upon receiving the electrical signal, the film application pressure holding unit moves to the film discarding position, the film application nozzle 106 disconnects from adsorption, and the protective film is discarded, thereby preventing incorrect placement of the protective film on the workpiece to be applied. The disconnected film application nozzle 106 can return to the position where it adsorbed the protective film and adsorb new protective film for application.

[0103] The detection unit sends signals to the negative pressure mechanism to control its on / off state, which is existing technology and will not be described in detail here.

[0104] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0105] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A film-tearing device (200), characterized in that, include: A first bracket (201) is provided with a first mounting base (202), and a first driving component (204) is mounted on the first mounting base (202); A bottom film suction nozzle (211) is used to adsorb the bottom film; A membrane handle platform (205), wherein the first driving member (204) is used to drive the membrane handle platform (205) to move at least along a first direction to approach or move away from the bottom membrane suction nozzle (211), and the membrane handle platform (205) is equipped with a plurality of second driving members (206); Multiple pressure claws (207), each of the second drive members (206) is capable of independently driving one of the pressure claws (207) to move at least along the first direction to approach or move away from the membrane handle platform (205).

2. The film-tearing device according to claim 1, characterized in that, Also includes: The second bracket (208) is provided with a second mounting base (210); An adsorption block (203) is provided with a first adsorption hole (212); The adsorption block (203) and the bottom film suction nozzle (211) are mounted on the second mounting base (210).

3. The film-tearing device according to claim 2, characterized in that, The second bracket (208) is equipped with a third drive member (209), which is used to drive the second mounting base (210) to move along the first direction.

4. The film-tearing device according to claim 2, characterized in that, The surface (214) of the adsorption block (203) having the first adsorption hole (212) is made of non-adhesive material.

5. The film-tearing device according to claim 1, characterized in that, The first drive member (204) is used to drive the membrane handle platform (205) to move along the first direction to approach or move away from the bottom membrane suction nozzle (211), and has a movement component along the second direction; The first direction intersects with the second direction.

6. The film-tearing device according to claim 5, characterized in that, The second drive member (206) is used to drive the pressure claw (207) to move closer to or further away from the membrane handle platform (205) along the first direction, and has a movement component along the second direction.

7. The film-tearing device according to claim 1, characterized in that, The first mounting base (202) and the first bracket (201) slide in cooperation along the first direction and the second direction, and the first direction intersects the second direction.

8. The film-tearing device according to claim 1, characterized in that, The pressure claw (207) is provided with a clearance part (213).

9. The film-tearing device according to claim 1, characterized in that, Also includes: The third bracket (217) is equipped with a fourth drive element (218); The third mounting base (219) is equipped with a fifth driving member (220), which is used to drive the bottom film gripper (221) to be in a clamping or releasing state. The fourth driving member (218) is used to drive the third mounting base (219) to move in a third direction so that the bottom film gripper (221) moves closer to or further away from the bottom film suction nozzle (211). The first direction intersects with the third direction.

10. The film-tearing device according to claim 9, characterized in that, It also includes a throwing box. After the bottom film gripper (221) moves away from the bottom film suction nozzle (211), the fifth driving member (220) drives the bottom film gripper (221) to be in a released state so as to throw the bottom film into the throwing box.

11. A film application device, characterized in that, include: The film-tearing device (200) as described in any one of claims 1 to 10; A film-applying and pressure-holding device (100) is used to apply the protective film torn off by the film-tearing device (200) to the workpiece to be covered with film and to hold it under pressure.

12. The film-applying device according to claim 11, characterized in that, The film-applying pressure-maintaining device (100) includes: A fastener (101) is provided with a film-applying pressure-holding unit. A sixth driving member (118) is used to drive the fixed member (101) to move; The film-applying pressure-maintaining unit includes: A seventh driving member (102) is mounted on the fixing member (101); A sliding connector (103) is provided, wherein the sliding connector (103) and the fixing member (101) are slidably engaged in a first direction, and the seventh driving member (102) is used to drive the sliding connector (103) to slide. A pressure-holding head (105) and a film-applying suction head (106) are provided, wherein the pressure-holding head (105) and the film-applying suction head (106) are connected to the sliding connector (103) and are spaced apart along the second direction; The film-applying nozzle (106) can adsorb the protective film at the avoidance part (213) of the pressure claw (207); The first direction intersects with the second direction and the third direction in pairs.

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