A mobile phone film pasting device

Abstract

This invention relates to the field of screen protector technology, and more specifically, to a mobile phone screen protector application device, comprising a casing, a top cover, and a centering positioning device; the top cover is equipped with an airbag that presses the screen protector and the mobile phone together; the centering positioning device is used to center and position the screen protector and the mobile phone, and to clamp them in place. Compared with the prior art, the mobile phone screen protector application device provided by this invention applies pressure to the screen protector and the mobile phone through the airbag, thus adhering the screen protector and the mobile phone; simultaneously, the centering positioning device enables centering and positioning of both the screen protector and the mobile phone, eliminating the need for manual alignment of the screen protector and the mobile phone, and eliminating the need to adjust the position of the mobile phone and the screen protector relative to the airbag, thereby improving the efficiency of screen protector application.

Description

Technical Field

[0001] This invention belongs to the field of screen protector technology, and more specifically, relates to a mobile phone screen protector application device. Background Technology

[0002] Mobile phones have become one of the most important communication tools for people. However, during use, the screen of a mobile phone is easily scratched, which affects the display effect and aesthetics of the screen. Therefore, people usually put a layer of light-transmitting plastic film on the screen of their mobile phones to protect it from scratches.

[0003] Existing screen protector application devices have a simple structure, low efficiency, and leave numerous air bubbles between the screen protector and the phone. Furthermore, the phone's position needs to be manually adjusted before the screen protector and screen protector are pressed together by a bonding mechanism. If the phone and screen protector are not aligned, they will be misaligned; if they are not aligned with the bonding mechanism, the adhesion will be insufficient. Therefore, it is necessary to adjust the positions of the phone and screen protector to align them, as well as their positions with the bonding mechanism, all of which require time-consuming and labor-intensive manual adjustments. Summary of the Invention

[0004] The purpose of this invention is to provide a mobile phone screen protector application device to solve the technical problems in the prior art, such as the large number of air bubbles between the screen protector and the mobile phone, and the time-consuming and laborious process of manually adjusting the position of the mobile phone and the screen protector.

[0005] The present invention aims to provide a mobile phone screen protector application device, comprising: a housing, the upper surface of which is used to place a mobile phone; the upper surface of the housing has a first through hole; a top cover, rotatably disposed on the upper surface of the housing, the top cover having an airbag, the airbag pressing the screen protector and the mobile phone together; and a centering positioning device, disposed in the housing and extending from the first through hole, for centering and positioning the screen protector and the mobile phone and clamping it.

[0006] Furthermore, it also includes a vacuum pump, with a portion of the upper surface of the chassis recessed towards the interior of the chassis to form a mounting cavity, the mobile phone being disposed in the mounting cavity, the upper cover covering the recessed mounting cavity, the vacuum pump being disposed in the chassis, the suction port of the vacuum pump communicating with the mounting cavity, and the exhaust port of the vacuum pump communicating with the air bag.

[0007] Furthermore, a second through hole is provided on the upper surface of the chassis, and the position of the second through hole corresponds to the position of the rear camera of the mobile phone.

[0008] Furthermore, the upper surface of the chassis is provided with a third through hole and a fourth through hole, which are arranged along the width direction of the mobile phone.

[0009] Further, the centering positioning device includes: a first positioning mechanism for positioning the phone along its length; a second positioning mechanism for positioning the phone along its width; a driving mechanism capable of driving the first positioning mechanism to release and clamp the phone along its length and capable of driving the second positioning mechanism to release and clamp the phone along its width, the driving mechanism being connected to the first positioning mechanism and the second positioning mechanism respectively; and a positioning post disposed on the first positioning mechanism and / or the second positioning mechanism for positioning the phone film; wherein, the first positioning mechanism includes a first clamping component and a second clamping component arranged opposite to each other along the length of the phone, the first clamping component and the second clamping component synchronously moving away from and towards each other; the second positioning mechanism includes a third clamping component and a fourth clamping component arranged opposite to each other along the width of the phone, the third clamping component and the fourth clamping component synchronously moving away from and towards each other.

[0010] Furthermore, the centering positioning device also includes a first synchronous connection component and a second synchronous connection component. The driving mechanism is connected to the first clamping component, and the first clamping component and the second clamping component are connected through the first synchronous connection component. The driving mechanism is connected to the third clamping component, and the third clamping component and the fourth clamping component are connected through the second synchronous connection component.

[0011] Further, the first synchronous connection component includes: a first rack fixed to the first clamping component; a second rack fixed to the second clamping component; a first gear, wherein the first rack and the second rack mesh with opposite sides of the first gear, and the first rack and the second rack are arranged in parallel; the second synchronous connection component includes: a third rack fixed to the third clamping component; a fourth rack fixed to the fourth clamping component; a second gear, wherein the third rack and the fourth rack mesh with opposite sides of the second gear, and the first rack and the second rack are arranged in parallel.

[0012] Furthermore, both the first and second clamping components include: a first sliding plate connected to the driving mechanism, which slides along the length direction of the mobile phone under the action of the driving mechanism; and a first clamping plate fixed on the first sliding plate for clamping the mobile phone. Both the third and fourth clamping components include: a second sliding plate connected to the driving mechanism, which slides along the width direction of the mobile phone under the action of the driving mechanism; and a second clamping plate fixed on the second sliding plate for clamping the mobile phone.

[0013] Furthermore, a fifth through hole is provided on the first sliding plate. Both the first clamping assembly and the second clamping assembly further include: a first guide shaft arranged along the length direction of the mobile phone, one end of the first guide shaft being fixed to the chassis, and the other end of the first guide shaft passing through the fifth through hole; a first spring, the first spring being sleeved on the first guide shaft, and the two ends of the first spring respectively abutting against the chassis and the first sliding plate; a sixth through hole is provided on the second sliding plate. The third clamping assembly and the fourth clamping assembly further include: a second guide shaft arranged along the length direction of the mobile phone, one end of the second guide shaft being fixed to the chassis, and the other end of the second guide shaft passing through the sixth through hole; a second spring, the second spring being sleeved on the second guide shaft, and the two ends of the second spring respectively abutting against the chassis and the second sliding plate.

[0014] Furthermore, the drive mechanism includes a power component and a transmission component, wherein the power component drives the transmission component to move; the transmission component includes: a drive shaft fixed to the chassis; a first cam disposed on the drive shaft, the first cam being connected to the power component, the power component driving the first cam to rotate; a first mounting plate fixed to the first sliding plate; a first bearing fixed to the first mounting plate, the first bearing abutting against the first cam, and the axis of the first bearing being parallel to the drive shaft; a second cam disposed on the drive shaft; a second mounting plate fixed to the second sliding plate; and a second bearing fixed to the second mounting plate, the second bearing abutting against the second cam, and the axis of the second bearing being parallel to the drive shaft.

[0015] Compared with the prior art, the mobile phone screen protector device provided by the present invention applies pressure to the screen protector and the mobile phone through an airbag, which can adhere the screen protector and the mobile phone together. At the same time, through the centering positioning device, the screen protector and the mobile phone can be centered and clamped, eliminating the need for manual alignment of the screen protector and the mobile phone, as well as the need to adjust the position of the mobile phone and the screen protector relative to the airbag, thus improving the efficiency of screen protector application. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the mobile phone screen protector device provided in an embodiment of the present invention. Figure 1 ;

[0018] Figure 2 A schematic diagram of the structure of the mobile phone screen protector device provided in an embodiment of the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the internal structure of the mobile phone screen protector device provided in an embodiment of the present invention;

[0020] Figure 4 An exploded view of the centering positioning device provided in an embodiment of the present invention;

[0021] Figure 5 A schematic diagram of the centering positioning device provided in an embodiment of the present invention. Figure 1 ;

[0022] Figure 6 A schematic diagram of the centering positioning device provided in an embodiment of the present invention. Figure 2 ;

[0023] Figure 7 A schematic diagram of the centering positioning device provided in an embodiment of the present invention. Figure 3 ;

[0024] Figure 8 A schematic diagram of the centering positioning device provided in an embodiment of the present invention. Figure 4 .

[0025] The following are the labeling elements in the figure:

[0026] 1-First positioning mechanism; 11-First clamping assembly; 111-First sliding plate; 1111-Fifth through hole; 112-First clamping plate; 113-First guide shaft; 114-First spring; 12-Second clamping assembly; 2-Second positioning mechanism; 21-Third clamping assembly; 211-Second sliding plate; 2111-Sixth through hole; 212-Second clamping plate; 213-Second guide shaft; 214-Second spring; 22-Fourth clamping assembly; 3-Drive mechanism; 31-Power assembly; 311-Motor; 312-Driving wheel; 313-Driven wheel; 314-Synchronizer; 32-Transmission assembly; 321-Transmission shaft ; 322-First cam; 323-First mounting plate; 324-First bearing; 326-Second cam; 327-Second mounting plate; 328-Second bearing; 4-First synchronous connection assembly; 41-First rack; 42-Second rack; 43-First gear; 5-Second synchronous connection assembly; 51-Third rack; 52-Fourth rack; 53-Second gear; 7-Chassis; 71-Upper surface; 711-First through hole; 712-Second through hole; 713-Third through hole; 714-Fourth through hole; 72-Mounting cavity; 8-Top cover; 81-Airbag; 10-Centering positioning device; 101-Positioning column; 9-Vacuum pump. Detailed Implementation

[0027] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0028] Please see Figure 1 and Figure 2 The present invention provides a mobile phone screen protector application device, which includes a housing 7, with an upper surface 71 for placing a mobile phone; a first through hole 711 is provided on the upper surface 71 of the housing 7; a top cover 8, rotatably disposed on the upper surface 71 of the housing 7, and an airbag 81 provided on the top cover 8, which presses the screen protector and the mobile phone together; and a centering positioning device 10, disposed on the housing 7 and extending from the first through hole 711, for centering and positioning the screen protector and the mobile phone, and clamping it. In specific implementation, the airbag 81 can be a silicone airbag. The mobile phone is placed on the upper surface 71 of the housing 7, and the part of the centering positioning device 10 extending from the first through hole 711 centers and positions and clamps the screen protector and the mobile phone. Then, the airbag 81 on the top cover 8 inflates and applies pressure to the mobile phone and the screen protector, so that the screen protector and the mobile phone adhere together.

[0029] Compared with the prior art, the mobile phone screen protector device provided by the present invention applies pressure to the screen protector and the mobile phone through the airbag 81, which can adhere the screen protector and the mobile phone. At the same time, the centering positioning device 10 can realize the centering positioning of the screen protector and the mobile phone, and can center and clamp the mobile phone, without the need for manual alignment of the position of the screen protector and the mobile phone, or adjustment of the position of the mobile phone and the screen protector relative to the airbag 81, thus improving the efficiency of screen protector application.

[0030] Furthermore, in conjunction with reference Figure 3 As a specific embodiment of the mobile phone screen protector device provided by the present invention, the mobile phone screen protector device also includes a vacuum pump 9. A portion of the upper surface 71 of the casing 7 is recessed towards the interior of the casing 7 to form an installation cavity 72. A top cover 8 covers the recessed installation cavity 72. The vacuum pump 9 is located in the casing 7, with its suction port connected to the installation cavity 72 and its outlet connected to an air bladder 81. Because the top cover 8 covers the recessed installation cavity 72, the vacuum pump 9 evacuates the air in the recessed installation cavity 72 into a vacuum, and the extracted air is then transported to the air bladder 81. After the air bladder 81 expands, it allows the mobile phone screen protector to better adhere to the mobile phone, resulting in a film without air bubbles.

[0031] Furthermore, in conjunction with reference Figure 3 As a specific embodiment of the mobile phone screen protector device provided by the present invention, a second through hole 712 is also provided on the upper surface 71 of the casing 7, and the position of the second through hole 712 corresponds to the position of the rear camera of the mobile phone. By providing a second through hole 712 on the upper surface 71 of the casing 7, and with the position of the second through hole 712 corresponding to the position of the rear camera of the mobile phone, when the mobile phone is placed on the upper surface 71, the protruding part of the rear camera is exactly located at the position of the second through hole 712. This allows the mobile phone to be placed horizontally and stably on the upper surface 71 of the casing 7 when applying the screen protector, avoiding the problem that the mobile phone cannot be placed horizontally due to the rear camera, which would affect the screen protector application effect.

[0032] Furthermore, as a specific embodiment of the mobile phone screen protector device provided by the present invention, the upper surface 71 of the housing 7 is also provided with a third through hole 713 and a fourth through hole 714, which are arranged along the width direction of the mobile phone. The arrangement of the third through hole 713 and the fourth through hole 714 makes it easier for the user or a robotic arm to remove the mobile phone from the upper surface 71 of the housing 7.

[0033] Furthermore, in conjunction with reference Figure 4As a specific embodiment of the mobile phone screen protector device provided by the present invention, the centering positioning device 10 includes: a first positioning mechanism 1 for positioning the mobile phone in the length direction; a second positioning mechanism 2 for positioning the mobile phone in the width direction; a driving mechanism 3 for driving the first positioning mechanism 1 to release and clamp the mobile phone in the length direction and for driving the second positioning mechanism 2 to release and clamp the mobile phone in the width direction, the driving mechanism 3 being connected to the first positioning mechanism 1 and the second positioning mechanism 2 respectively; and a positioning post 101 disposed on the first positioning mechanism 1 and / or the second positioning mechanism 2 for positioning the mobile phone screen protector; wherein, the first positioning mechanism 1 includes a first clamping component 11 and a second clamping component 12 arranged opposite to each other in the length direction of the mobile phone, the first clamping component 11 and the second clamping component 12 synchronously moving away from and towards each other; the second positioning mechanism 2 includes a third clamping component 21 and a fourth clamping component 22 arranged opposite to each other in the width direction of the mobile phone, the third clamping component 21 and the fourth clamping component 22 synchronously moving away from and towards each other.

[0034] In practice, when the phone needs to be placed on the screen protector device, the drive mechanism 3 drives the first positioning mechanism 1 to move, causing the first clamping component 11 and the second clamping component 12 to move away from each other simultaneously, increasing the distance between the first clamping component 11 and the second clamping component 12; the drive mechanism 3 drives the second positioning mechanism 2 to move, causing the third clamping component 21 and the fourth clamping component 22 to move away from each other simultaneously, increasing the distance between the third clamping component 21 and the fourth clamping component 22. When the phone is placed on the upper surface 71 of the casing 7, the first clamping component 11 and the second clamping component 12 move closer to each other simultaneously, and the third clamping component 21 and the fourth clamping component 22 move closer to each other simultaneously, thereby clamping the phone. Because the first clamping component 11 and the second clamping component 12 of the first positioning mechanism 1 move away from each other and move closer to each other synchronously, and the third clamping component 21 and the fourth clamping component 22 of the second positioning mechanism 2 move away from each other and move closer to each other synchronously, it can be ensured that the center position between the first positioning mechanism 1 and the second positioning mechanism 2 remains unchanged when the first positioning mechanism 1 and the second positioning mechanism 2 move. When the mobile phone is placed between the first positioning mechanism 1 and the second positioning mechanism 2, it can achieve automatic centering and positioning without the need for manual adjustment of the position of the mobile phone. In use, the positioning post 101 can be placed on the first clamping component 11 and the second clamping component 12. The length of the protective film of the mobile phone screen protector can be greater than the length of the mobile phone screen protector, and at least two through holes can be opened on the protective film away from the mobile phone screen protector. When the screen protector needs to be applied, the two through holes on the mobile phone screen protector can be fitted onto the positioning post 101 to achieve the centering positioning of the mobile phone screen protector. Of course, it is understood that the positioning post 101 can also be placed on the third clamping component 21 and the fourth clamping component 22. The width of the protective film is greater than the width of the mobile phone screen protector, and at least two through holes can be set in the width direction of the mobile phone screen protector, as long as the centering positioning of the mobile phone screen protector can be achieved. Those skilled in the art can choose the setting according to actual needs.

[0035] Furthermore, in conjunction with reference Figure 6As a specific embodiment of the mobile phone screen protector device provided by the present invention, the centering positioning device 10 further includes a first synchronous connection component 4 and a second synchronous connection component 5. The driving mechanism 3 is connected to the first clamping component 11, and the first clamping component 11 and the second clamping component 12 are connected through the first synchronous connection component 4. The driving mechanism 3 is connected to the third clamping component 21, and the third clamping component 21 and the fourth clamping component 22 are connected through the second synchronous connection component 5. The first synchronous connection component 4 enables the first clamping component 11 and the second clamping component 12 to synchronously move away from and towards each other without requiring separate drives for each component, thus simplifying the structure of the centering positioning device 10. Similarly, the second synchronous connection component 5 enables the third clamping component 21 and the fourth clamping component 22 to synchronously move away from and towards each other without requiring separate drives for each component, further simplifying the structure of the centering positioning device 10.

[0036] Furthermore, in conjunction with reference Figure 7As a specific embodiment of the mobile phone screen protector device provided by the present invention, the first synchronous connection component 4 includes: a first rack 41, fixed to the first clamping component 11; a second rack 42, fixed to the second clamping component 12; a first gear 43, wherein the first rack 41 and the second rack 42 mesh with opposite sides of the first gear 43, and the first rack 41 and the second rack 42 are arranged in parallel; the second synchronous connection component 5 includes: a third rack 51, fixed to the third clamping component 21; a fourth rack 52, fixed to the fourth clamping component 22; a second gear 53, wherein the third rack 51 and the fourth rack 52 mesh with opposite sides of the second gear 53, and the first rack 41 and the second rack 42 are arranged in parallel. By meshing the first rack 41 and the second rack 42, which are parallel to each other, onto opposite sides of the first gear 43, the first rack 41 and the second rack 42 can move at the same speed but in opposite directions. Furthermore, by fixing the first rack 41 to the first clamping assembly 11 and the second rack 42 to the second clamping assembly 12, the first clamping assembly 11 and the second clamping assembly 12 can move at the same speed but in opposite directions, that is, the first clamping assembly 11 and the second clamping assembly 12 move away from each other and move closer to each other synchronously. It is understandable that the first synchronous connection component 4 can also have other structures. For example, an adjustment plate can be provided between the first clamping component 11 and the second component, and a wedge with the same structure can be provided between the adjustment plate and the first clamping component 11 and the second clamping component 12. The adjustment plate moves on the inclined surface of the wedge, and the wedge pushes the first clamping component 11 and the second clamping component 12 away from each other. Then, a spring structure is used to realize that the first clamping component 11 and the second clamping component 12 automatically move closer to each other. As long as it can realize the synchronous moving away and moving closer between the first clamping component 11 and the second clamping component 12, it is acceptable. Those skilled in the art can choose the setting according to actual needs. Similarly, the second synchronous connection component 5 is based on the same principle, and will not be described in detail here.

[0037] Furthermore, as a specific embodiment of the mobile phone screen protector device provided by the present invention, the first clamping assembly 11 and the second clamping assembly 12 both include: a first sliding plate 111, connected to the driving mechanism 3, which slides along the length direction of the mobile phone under the action of the driving mechanism 3; and a first clamping plate 112, fixed on the first sliding plate 111, for clamping the mobile phone; the third clamping assembly 21 and the fourth clamping assembly 22 both include: a second sliding plate 211, connected to the driving mechanism 3, which slides along the width direction of the mobile phone under the action of the driving mechanism 3; and a second clamping plate 212, fixed on the second sliding plate 211, for clamping the mobile phone.

[0038] Furthermore, referring to the figures, as a specific embodiment of the mobile phone screen protector device provided by the present invention, the first sliding plate 111 has a fifth through hole 1111, and both the first clamping assembly 11 and the second clamping assembly 12 further include: a first guide shaft 113 arranged along the length direction of the mobile phone, one end of the first guide shaft 113 being fixed to the housing 7, and the other end of the first guide shaft 113 passing through the fifth through hole 1111; and a first spring 114, which is sleeved on the first guide shaft 113, and both ends of the first spring 114 are provided with a fifth through hole 1111. The first sliding plate 111 and the second sliding plate 211 are respectively abutted against the chassis 7 and the first sliding plate 111; the second sliding plate 211 has a sixth through hole 2111. The third clamping assembly 21 and the fourth clamping assembly 22 also include: a second guide shaft 213 arranged along the length direction of the mobile phone, one end of the second guide shaft 213 is fixed to the chassis 7, and the other end of the second guide shaft 213 passes through the sixth through hole 2111; a second spring 214, the second spring 214 is sleeved on the second guide shaft 213, and the two ends of the second spring 214 abut against the chassis 7 and the second sliding plate 211 respectively. The first guide shaft 113 allows the first sliding plate 111 to slide along it, resulting in smoother movement. The first spring 114 is fitted onto the first guide shaft 113, with its two ends abutting against the housing 7 and the first sliding plate 111 respectively. When the force driving the first sliding plate 111 is less than the force of the first spring 114, the spring 114 will push the first sliding plate 111 towards the phone, automatically clamping the phone. The drive mechanism 3 only needs to move the first sliding plate 111 away from the phone to release it; no additional power is required to clamp the phone. Similarly, the second guide shaft 213 and the second spring 214 have similar effects, which will not be elaborated further here.

[0039] Furthermore, in conjunction with reference Figure 5 and Figure 8As a specific embodiment of the centering positioning device 10 for mobile phone screen protectors provided by the present invention, the driving mechanism 3 includes a power component 31 and a transmission component 32. The power component drives the transmission component 32 to move. The transmission component 32 includes: a transmission shaft 321, fixed to the housing 7; a first cam 322, disposed on the transmission shaft 321, connected to the power component 31, and the power component 31 drives the first cam 322 to rotate; a first mounting plate 323, fixed to the first sliding plate 111; a first bearing 324, fixed to the first mounting plate 323, abutting against the first cam 322, and the axis of the first bearing 324 is parallel to the transmission shaft 321; a second cam 326, disposed on the transmission shaft 321; a second mounting plate 327, fixed to the second sliding plate 211; and a second bearing 328, fixed to the second mounting plate 327, abutting against the second cam 326, and the axis of the second bearing 328 is parallel to the transmission shaft 321. In specific implementation, the power component 31 drives the first cam 322 to rotate, the first cam 322 drives the first transmission shaft 321 to rotate, thereby driving the second cam 326 to rotate; when the first cam 322 rotates, it pushes the first bearing 324 away from the second sliding plate 211, thereby driving the first mounting plate 323 and the first sliding plate 111 to move away from the second sliding plate 211, and vice versa; when the second cam 326 rotates, it drives the transmission shaft 321 to rotate; when the second cam 326 rotates, it pushes the second bearing 328 away from the first sliding plate 111, thereby driving the second mounting plate 327 and the second sliding plate 211 to move away from the first sliding plate 111, and vice versa.

[0040] By driving the first cam 322 to rotate via the power component 31, which in turn drives the transmission shaft 321 to rotate, and consequently the second cam 326 to rotate, the power component 31 only needs to drive the first cam 322 to move, thereby causing the first positioning mechanism 1 and the second positioning mechanism 2 to simultaneously release or clamp the mobile phone, improving the efficiency of the centering positioning device 10. Of course, it is understandable that the power component 31 could also drive the second cam 326 to rotate, thereby driving the transmission shaft 321 to rotate, and consequently causing the first cam 322 to rotate synchronously.

[0041] Furthermore, as a specific embodiment of the centering positioning device 10 for mobile phone screen protectors provided by the present invention, the power component 31 includes: a motor 311, disposed in the housing 7; a drive wheel 312, connected to the motor 311 and rotating under the action of the motor 311; a driven wheel 313, fixed to the first rotating shaft; and a synchronizing element 314, connecting the drive wheel 312 and the driven wheel 313. In specific implementation, the drive wheel 312 and the driven wheel 313 can be pulleys, and the synchronizing element 314 can be a belt; of course, it is understood that the drive wheel 312 and the driven wheel 313 can also be sprockets, and the synchronizing element 314 can also be a chain; the drive wheel 312 and the driven wheel 313 can also both be gears, as long as the drive wheel 312 can drive the driven wheel 313 to move synchronously, those skilled in the art can choose the setting according to actual needs.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mobile phone screen protector application device, characterized in that, include: A chassis, the upper surface of which is used to hold a mobile phone; the upper surface of the chassis has a first through hole; The top cover is rotatably disposed on the upper surface of the chassis, and the top cover is provided with an airbag that presses the screen protector and the phone together; wherein, the airbag is a silicone airbag; A centering positioning device is provided in the chassis and extends out of the first through hole, used for centering and positioning the mobile phone film, as well as centering and clamping the mobile phone; The centering positioning device includes: The first positioning mechanism is used to position the mobile phone along its length. The second positioning mechanism is used to position the phone in the width direction of the phone. The driving mechanism is capable of driving the first positioning mechanism to release and clamp the phone in the length direction of the phone and to drive the second positioning mechanism to release and clamp the phone in the width direction. The driving mechanism is connected to the first positioning mechanism and the second positioning mechanism respectively. A positioning post, which is disposed on the first positioning mechanism and / or the second positioning mechanism, is used to position the mobile phone film; The first positioning mechanism includes a first clamping component and a second clamping component arranged opposite to each other along the length direction of the mobile phone, and the first clamping component and the second clamping component move away from each other and move closer to each other synchronously; the second positioning mechanism includes a third clamping component and a fourth clamping component arranged opposite to each other along the width direction of the mobile phone, and the third clamping component and the fourth clamping component move away from each other and move closer to each other synchronously. Both the first clamping assembly and the second clamping assembly include: The first sliding plate is connected to the driving mechanism and slides along the length of the mobile phone under the action of the driving mechanism. The first clamping plate is fixed to the first sliding plate and is used to clamp the mobile phone; Both the third clamping assembly and the fourth clamping assembly include: The second sliding plate is connected to the driving mechanism and slides along the width direction of the mobile phone under the action of the driving mechanism; The second clamping plate is fixed to the second sliding plate and is used to clamp the mobile phone; The first sliding plate has a fifth through hole, and both the first clamping assembly and the second clamping assembly further include: A first guide shaft is provided along the length of the mobile phone, one end of the first guide shaft is fixed to the chassis, and the other end of the first guide shaft passes through the fifth through hole; A first spring is sleeved on the first guide shaft, and both ends of the first spring abut against the chassis and the first sliding plate, respectively. The second sliding plate has a sixth through hole, and the third clamping assembly and the fourth clamping assembly further include: A second guide shaft is provided along the length of the mobile phone, one end of which is fixed to the chassis, and the other end of which passes through the sixth through hole; The second spring is sleeved on the second guide shaft, and its two ends abut against the chassis and the second sliding plate, respectively. The drive mechanism includes a power component and a transmission component, wherein the power component drives the transmission component to move; the transmission component includes: The drive shaft is fixed to the chassis; A first cam is disposed on the drive shaft, and the first cam is connected to the power component, which drives the first cam to rotate. The first mounting plate is fixed to the first sliding plate; A first bearing is fixed to the first mounting plate, the first bearing abuts against the first cam, and the axis of the first bearing is parallel to the drive shaft; A second cam is provided on the drive shaft; The second mounting plate is fixed to the second sliding plate; The second bearing is fixed to the second mounting plate, the second bearing abuts against the second cam, and the axis of the second bearing is parallel to the drive shaft.

2. The mobile phone screen protector applicator according to claim 1, characterized in that, It also includes a vacuum pump. Part of the upper surface of the chassis is recessed towards the inside of the chassis to form a mounting cavity. The mobile phone is placed in the mounting cavity. The upper cover covers the recessed mounting cavity. The vacuum pump is placed in the chassis. The suction port of the vacuum pump is connected to the mounting cavity, and the exhaust port of the vacuum pump is connected to the air bag.

3. The mobile phone screen protector applicator according to claim 1, characterized in that, A second through hole is also provided on the upper surface of the chassis, and the position of the second through hole corresponds to the position of the rear camera of the mobile phone.

4. The mobile phone screen protector applicator according to claim 1, characterized in that, The upper surface of the chassis is also provided with a third through hole and a fourth through hole, which are arranged along the width direction of the mobile phone.

5. The mobile phone screen protector applicator according to claim 1, characterized in that, The centering positioning device further includes a first synchronous connection component and a second synchronous connection component. The driving mechanism is connected to the first clamping component, and the first clamping component and the second clamping component are connected through the first synchronous connection component. The driving mechanism is connected to the third clamping component, and the third clamping component and the fourth clamping component are connected through the second synchronous connection component.

6. The mobile phone screen protector applicator according to claim 5, characterized in that, The first synchronous connection component includes: The first rack is fixed to the first clamping assembly; The second rack is fixed to the second clamping assembly; The first gear has a first rack and a second rack meshing on opposite sides of the first gear, and the first rack and the second rack are arranged in parallel. The second synchronous connection component includes: The third rack is fixed to the third clamping assembly; The fourth rack is fixed to the fourth clamping assembly; The second gear, the third rack and the fourth rack mesh on opposite sides of the second gear respectively, and the first rack and the second rack are arranged in parallel.

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