Film tearing mechanism and film sticking machine

Abstract

The application discloses a film tearing mechanism and a film sticking machine. The film tearing mechanism comprises a film tearing piece for tearing a protective film on a target object. The film tearing piece is provided with a contact surface. When the protective film is torn, the contact surface is in contact with the whole surface of the protective film. With the movement of the film tearing piece, the protective film is separated from the target object under the driving of the film tearing piece. The film tearing mechanism can avoid the accumulation of static electricity at the tail end of the target product during the film tearing process, thereby avoiding the damage of the target object caused by static electricity.

Description

Technical Field

[0001] This application relates to the field of film applicator technology, and in particular to a film peeling mechanism and a film applicator. Background Technology

[0002] To protect the display panel during manufacturing, a protective film is applied to its outer surface. This protective film is then removed during subsequent manufacturing processes (such as the process of attaching a polarizer to the surface). However, see [link to relevant documentation]. Figure 1 as well as Figure 2 Existing technologies typically use a peeling head to remove the protective film. This method can easily cause static electricity to accumulate at the end of the display panel during the removal process. As the protective film is gradually removed, static electricity will gradually accumulate, resulting in a large amount of positive charge at the end of the display panel, which can damage the display panel and cause uneven display brightness. Summary of the Invention

[0003] This application provides a film-peeling mechanism and a film-applying machine that can prevent static electricity from accumulating at the tail end of the target product during the film-peeling process, thereby preventing static electricity from damaging the target object.

[0004] The first aspect of this application provides a film-tearing mechanism, comprising: a film-tearing member for tearing a protective film from a target object, the film-tearing member having a contact surface, wherein when tearing the protective film, after the contact surface adheres to the entire surface of the protective film, the protective film separates from the target object under the action of the film-tearing member as the film-tearing member moves.

[0005] The contact surface is an arc-shaped convex surface; preferably, the cross-section of the film-tearing component is fan-shaped.

[0006] The contact surface is conductive, and the film-tearing member has at least one conductive path electrically connected to the contact surface, and the conductive path is grounded.

[0007] The film-tearing component is conductive and grounded; preferably, the material of the film-tearing component includes a metallic material.

[0008] The contact surface and the protective film have the same surface dimensions facing away from the target object.

[0009] The film-tearing component has at least one vacuum hole on its contact surface, and the film-tearing mechanism further includes a vacuum-drawing component that communicates with the at least one vacuum hole and is used to draw a vacuum into the vacuum hole.

[0010] The vacuum holes are multiple in number and are evenly distributed on the contact surface.

[0011] The film-tearing component has at least one vacuum channel inside, and each vacuum channel corresponds to a vacuum hole. The vacuum channel connects the corresponding vacuum hole to the vacuum pumping component. All the vacuum channels are connected together at one end and then connected to the vacuum pumping component.

[0012] The target object is a display panel.

[0013] A second aspect of this application provides a film applicator, comprising: a film peeling mechanism as described in any of the preceding embodiments.

[0014] The beneficial effects of this application are as follows: The film-tearing mechanism of this application has a film-tearing component used to tear off the protective film from a target object. The film-tearing component has a contact surface, wherein when tearing off the protective film, after the contact surface is in contact with the entire surface of the protective film, the protective film is separated from the target object by the movement of the film-tearing component. Because the contact surface of the film-tearing component is in contact with the entire surface of the protective film when tearing off the protective film, compared with the film-tearing method using a film-tearing head in the prior art, this application can avoid the gradual accumulation of static electricity during the film-tearing process. In other words, the film-tearing mechanism in this application can reduce the accumulation of static electricity during the film-tearing process, thereby avoiding damage to the target object caused by static electricity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the state structure of a film-tearing mechanism in the prior art during film tearing;

[0017] Figure 2 This is a schematic diagram of another structural state of the film-tearing mechanism in the prior art during film tearing;

[0018] Figure 3 This is a schematic diagram of the state structure of the film-tearing mechanism during film tearing in one embodiment of this application;

[0019] Figure 4 for Figure 3 A schematic diagram of the film-tearing mechanism in another state during film tearing;

[0020] Figure 5 for Figure 3 A schematic diagram of the film-tearing mechanism in another state during film tearing;

[0021] Figure 6for Figure 3 A schematic diagram showing the relative position of the film-tearing mechanism to the target object after film tearing is completed.

[0022] Figure 7 This is a schematic diagram of one embodiment of the film applicator of this application. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] See Figure 3 This application discloses a film-tearing mechanism 100 including a film-tearing component 101. The film-tearing component 101 is used to tear off the protective film 102 on the target object 103. The film-tearing component 101 is provided with a contact surface 1011. When tearing off the protective film 102, after the contact surface 1011 is attached to the entire surface of the protective film 102, the protective film 102 is separated from the target object 103 under the action of the film-tearing component 101 as the film-tearing component 101 moves.

[0025] In this context, the protective film 102 and the target object 103 are not part of the film-tearing mechanism 100, but rather the objects to which the film-tearing mechanism 100 is applied. For ease of explanation... Figure 3 It is numbered in the Chinese.

[0026] Specifically, the target object 103 can be a display panel such as OLED (Organic Light-Emitting Diode) or LCD (Liquid Crystal Display), or other objects such as glass. However, for ease of explanation, the target object 103 will be described as a display panel in the following description.

[0027] The protective film 102 is adhered to the outer surface of the target object 103, serving to block dust and prevent scratches. A film-peeling mechanism 100 is mounted on a film-applying machine, which includes a base, rollers, and other structures. The film-applying machine drives the film-peeling mechanism 100 to adhere its contact surface 1011 to the entire surface of the protective film 102. The contact surface 1011 of the film-peeling component 101 is the surface that contacts the protective film 102. As the film-peeling component 101 moves, the protective film 102 is separated from the target object 103 under the action of the film-peeling component 101.

[0028] Since the contact surface 1011 of the film-tearing component 101 is in contact with the entire surface of the protective film 102, compared with the film-tearing method using a film-tearing head in the prior art, this embodiment will not cause static electricity accumulation on the tail end of the target object 103 of the protective film 102, thus avoiding static electricity damage to the target object 103.

[0029] As can be seen from the above, the film-tearing mechanism 100 of this application includes a film-tearing component 101, which is used to tear off the protective film 102 on the target object 103. The film-tearing component 101 has a contact surface 1011. When tearing off the protective film 102, after the contact surface 1011 adheres to the entire surface of the protective film 102, the protective film 102 separates from the target object 103 under the action of the film-tearing component 101. Since the film-tearing component 101 is in contact with the protective film 102, and the contact surface 1011 adheres to the entire surface of the protective film 102, the protective film 102 is adhered to the contact surface 1011 of the film-tearing component 101 when tearing off the protective film 102. Compared with the film-tearing head used in the prior art, it is less likely for static electricity to accumulate on the tail end of the target object 103. In other words, it can reduce the accumulation of static electricity during the film-tearing process, thereby avoiding damage to the target object 103 caused by static electricity.

[0030] In one embodiment, the contact surface 1011 is an arcuate convex surface. (See also...) Figures 3 to 6 , Figures 3 to 6 This is a schematic diagram illustrating the process of the tearing device 101 tearing the protective film 102. The contact surface 1011 is an arc-shaped convex surface with a convex center and concave ends. When tearing the protective film 102, the end of the tearing device 101 first adheres to the corner area of ​​the protective film 102, applying a force to the tearing device 101 to detach it from the target object 103. This causes the corner area of ​​the protective film 102 to separate from the target object 103 along with the tearing device 101. Then, the tearing device 101 is controlled to extend the tearing direction from one corner area of ​​the protective film 102 to the opposite corner area. During this process, the contact surface 1011 of the tearing device 101 gradually adheres to the protective film 102, and the protective film 102 gradually separates from the target object 103 under the force of the tearing device 101. That is, after the contact surface 1011 adheres to the entire surface of the protective film 102, the protective film 102 separates from the target object 103 under the action of the tearing device 101.

[0031] Since the contact surface 1011 is an arc-shaped convex surface, the tearing member 101 first contacts the corner area of ​​one end of the protective film 102, causing the corner area of ​​one end of the protective film 102 to separate from the target object 103 first. In this process, the tearing member 101 has a small force to tear the protective film 102, resulting in less damage to the target object 103.

[0032] In an application scenario, such as Figures 3 to 6As shown, the cross-section of the film-tearing component 101 is fan-shaped.

[0033] Of course, in other embodiments, the contact surface 1011 can also be a plane, and this application does not limit the shape of the contact surface 1011.

[0034] In other embodiments, the cross-section of the film-tearing member 101 may also be, for example, boat-shaped, rectangular, or irregular in shape. This application does not limit the cross-sectional shape of the film-tearing member 101.

[0035] See Figure 4 In one embodiment, the contact surface 1011 is conductive, the film-tearing member 101 is formed with at least one conductive path 1013 electrically connected to the contact surface 1011, and the conductive path 1013 is grounded.

[0036] Specifically, one end of the conductive path 1013 is connected to the contact surface 1011, and the other end is grounded. This allows the static electricity generated when tearing off the protective film 102 to be released to the ground through the conductive path 1013, which helps to eliminate the static electricity generated when tearing off the protective film 102. The conductive path 1013 and the contact surface 1011 can be made of metal, such as at least one of aluminum, copper, and iron. Except for the conductive path 1013 and the contact surface 1011, which are made of conductive materials, other parts of the film-tearing component 101 can be made of non-conductive materials, such as plastic or resin. Compared to the prior art that uses a film-tearing head to tear off the protective film 102 and then uses an ion bar and X-ray to eliminate static electricity, this application can discharge static electricity in real time through the conductive path 1013 during the process of tearing off the protective film 102, improving immediacy and reducing the amount of residual static electricity on the target object 103, thus better protecting the target object 103.

[0037] In this application, the number of conductive paths 1013 is not limited, and can be, for example, one, two, five, etc. The material of the contact surface 1011 includes conductive materials such as metal. Therefore, in the case of one conductive path 1013, the static electricity on the protective film 102 can be released through this conductive path 1013.

[0038] In one embodiment, the film-tearing component 101 is conductive and grounded. Specifically, the entire material of the film-tearing component 101 is conductive, and since it is grounded, static electricity generated when tearing off the protective film 102 can be released to the ground through the film-tearing component 101. This improves static electricity conduction efficiency and allows for real-time static electricity release during the tearing process, significantly reducing residual static electricity and effectively preventing uneven product brightness caused by static electricity residue. The simultaneous static electricity removal action at the film-tearing point enhances immediacy and improves static electricity conduction efficiency, better protecting the target object 103 and effectively improving uneven brightness.

[0039] In one embodiment, the material of the film-tearing member 101 includes a metallic material, such as aluminum, copper, iron, etc.

[0040] In other embodiments, the material of the film-tearing member 101 may also be other conductive materials such as graphite. In summary, this application does not impose specific limitations on the material of the film-tearing member 101.

[0041] In one embodiment, the contact surface 1011 and the protective film 102 have the same surface dimensions facing away from the target object 103.

[0042] Specifically, the fact that the contact surface 1011 and the protective film 102 have the same surface size away from the target object 103 means that the contact surface 1011 and the protective film 102 have the same surface area away from the target object 103, and the two can be completely adhered together. In other words, the contact surface 1011 and the protective film 102 have the same surface size away from the target object 103, which can ensure that the contact surface 1011 and the protective film 102 are fully adhered, thus ensuring that the protective film 102 can be easily removed.

[0043] The contact surface 1011 and the protective film 102 facing away from the target object 103 can have the same or different shapes. For example, when the protective film 102 is flat, the contact surface 1011 is also flat; or when the protective film 102 is flat, the contact surface 1011 is an arcuate convex surface or other shapes. In short, this application does not limit the shape or size of the contact surface 1011.

[0044] In other embodiments, when the film-tearing component 101 is grounded, the static electricity generated by the protective film 102 during the process of tearing off the protective film 102 can be released to the ground through the contact surface 1011.

[0045] In one embodiment, the contact surface 1011 of the film-tearing member 101 is provided with at least one vacuum hole (not shown), and the film-tearing mechanism 100 further includes a vacuum pumping assembly (not shown), which communicates with at least one vacuum hole and is used to evacuate the vacuum hole.

[0046] Specifically, the vacuum assembly evacuates the vacuum holes on the contact surface 1011, and the resulting vacuum suction force can attract the protective film 102, thereby separating the protective film 102 from the target object 103. The vacuum assembly can be, for example, a vacuum pump. The vacuum assembly is connected to the vacuum holes through an air tube. The vacuuming force of the vacuum assembly can be adjusted by the operator to ensure that the force applied to tearing off the protective film 102 is gentle on the target object 103 and will not cause damage. The number of vacuum holes can be, for example, one, five, or more, and the shape of the vacuum holes can be, for example, circular or square. This application does not limit the number, shape, or size of the vacuum holes.

[0047] In other embodiments, an adhesive can also be applied to the contact surface 1011 to adsorb the protective film 102. When a force is applied to the film-tearing member 101 to move away from the target object 103, the film-tearing member 101 separates from the target object 103.

[0048] In one embodiment, there are multiple vacuum holes, and the multiple vacuum holes are evenly distributed on the contact surface 1011.

[0049] Specifically, multiple vacuum holes can generate greater adsorption force, making it easier for the protective film 102 to detach from the target object 103. The multiple vacuum holes are evenly distributed on the contact surface 1011, which facilitates the vacuum assembly to generate a more uniform adsorption force when evacuating the vacuum holes, making it easier to detach the protective film 102 from the target object 103 and allowing the operator to adjust the vacuum adsorption force.

[0050] In other embodiments, regardless of the ease of removing the protective film 102, the vacuum holes may be unevenly distributed on the contact surface 1011. This application does not limit the number, arrangement, or shape of the vacuum holes.

[0051] Continue reading Figure 3 In one embodiment, at least one vacuum channel 1014 is formed inside the film-tearing member 101. The vacuum channel 1014 corresponds to a vacuum hole, and the vacuum channel 1014 connects the corresponding vacuum hole to the vacuum pumping component. All the vacuum channels 1014 are connected together at one end and then connected to the vacuum pumping component.

[0052] Specifically, the vacuum channel 1014 is a vacuum-drawing conduit located inside the film-tearing component 101. Each vacuum channel 1014 corresponds to and is connected to a vacuum hole, and the other end of each vacuum channel 1014 is connected to a vacuum-drawing assembly. In this embodiment, all vacuum channels 1014 are connected together and then connected to the vacuum-drawing assembly, ensuring that the pressure within all vacuum channels 1014 is the same, thereby guaranteeing that the film-tearing component 101 uniformly adsorbs the protective film 102.

[0053] Of course, in other embodiments, the pressure in different vacuum channels 1014 can also be different, and the specific settings can be made according to the actual situation.

[0054] See Figure 7 In one embodiment, the film applicator 200 includes a film-peeling mechanism 100 as described in any of the above embodiments.

[0055] Specifically, the film applicator 200 is a machine that can apply and remove film. When removing film, since the film applicator 200 includes the film removal mechanism 100 in any of the above embodiments, it can reduce the accumulation of static electricity at the end of the target product during the film removal process, thereby avoiding static damage to the target object and effectively improving the uneven brightness of the display panel.

[0056] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A film-tearing mechanism, characterized in that, include: A film-tearing device is used to tear off a protective film from a target object. The film-tearing device has a contact surface, and the film-tearing device and the contact surface are conductive. The film-tearing device is grounded, and the film-tearing device forms at least one conductive path electrically connected to the contact surface, and the conductive path is grounded. When tearing off the protective film, after the contact surface adheres to the entire surface of the protective film, the protective film separates from the target object under the action of the film-tearing device as the film-tearing device moves.

2. The film-tearing mechanism according to claim 1, characterized in that, The contact surface is an arc-shaped convex surface.

3. The film-tearing mechanism according to claim 2, characterized in that, The cross-section of the film-tearing component is fan-shaped.

4. The film-tearing mechanism according to claim 1, characterized in that, The material of the film-tearable component includes metal.

5. The film-tearing mechanism according to claim 1, characterized in that, The contact surface and the protective film have the same surface dimensions facing away from the target object.

6. The film-tearing mechanism according to claim 1, characterized in that, The contact surface of the film-tearing member is provided with at least one vacuum hole, and the film-tearing mechanism further includes: A vacuum pumping assembly, connected to the at least one vacuum port, is used to evacuate the vacuum port.

7. The film-tearing mechanism according to claim 6, characterized in that, The number of vacuum holes is multiple, and the multiple vacuum holes are evenly distributed on the contact surface.

8. The film-tearing mechanism according to claim 6, characterized in that, The interior of the film-tearing component has at least one vacuum channel, which corresponds one-to-one with the vacuum hole. The vacuum channel connects the corresponding vacuum hole to the vacuum pumping component. All the vacuum channels are connected together at one end and then connected to the vacuum pumping component.

9. The film-tearing mechanism according to claim 1, characterized in that, The target object is a display panel.

10. The film-tearing mechanism according to claim 1, characterized in that, The contact surface is coated with adhesive.

11. A film applicator, characterized in that, Includes the film-tearing mechanism as described in any one of claims 1-10.

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