Foamed plastic structure facilitating man-machine film tearing

Abstract

The utility model discloses a foamed plastic structure convenient for man-machine film tearing, which comprises a grid release film gasket, the grid release film gasket is in a grid shape, and the grid release film gasket is arranged at the corner of the top of a second double-sided adhesive layer; the heavy release film covers the top of the second double-sided adhesive layer and the top of the grid release film gasket. The grid release film gasket is a grid release film and is attached to the position, close to the tearing handle, of the heavy release film in advance, and the contact area of the heavy release film and the double-faced adhesive tape foam is reduced through the grid release film gasket between the double-faced adhesive tape and the heavy release film, so that the viscidity between the heavy release film and the foam adhesive layer is reduced, and the service life of the double-faced adhesive tape is prolonged. Therefore, the heavy release film can be torn off more easily by an equipment manipulator or manual work, and meanwhile, the situation that the foam body is torn off when the heavy release film is torn off due to the fact that the viscosity of the second double-faced adhesive tape foam is too high is avoided.

Description

Technical Field

[0001] This utility model relates to the field of foam technology, and in particular to a foam structure that is easy for humans and machines to tear. Background Technology

[0002] In-vehicle display technology has become a standard feature in modern cars, and its bonding process significantly impacts product performance and aesthetics. Traditional bonding methods widely utilize optical character recognition (OCR) and optical adhesives (OCA). In high-end models, these technologies greatly improve screen bonding quality and user experience. However, for some lower-end cars, a simpler frame-bonding method is often used. This involves a double-sided adhesive foam backing for the touchscreen, which is then manually peeled off the release film before assembly with the display. This method is favored by some automakers due to its simplicity and low cost. However, the traditionally designed foam has strong adhesive properties, making manual operation difficult, especially when using automated assembly equipment. The equipment often alarms due to its inability to effectively peel off the release film, severely impacting production efficiency. Regardless of whether manual or automated equipment is used for film peeling, the strong adhesiveness of the foam inevitably leads to separation between the foam and the touchscreen, resulting in a decrease in yield. Utility Model Content

[0003] Based on this, it is necessary to provide a foam structure that facilitates manual and machine tearing of the film, addressing the aforementioned technical problems. The grid release film pad is a grid-type release film, pre-attached to the secondary release film near the tear handle. Between the double-sided adhesive and the secondary release film, the grid release film pad reduces the contact area between the secondary release film and the double-sided adhesive foam, thus reducing the adhesion between the secondary release film and the foam adhesive layer. This makes it easier for the machine's robotic arm or manual operation to tear off the secondary release film. It also avoids the situation where the foam body is torn apart when tearing the secondary release film due to the excessive adhesion of the second double-sided adhesive foam. This design not only improves the convenience of manual operation when the equipment is insufficient, but also effectively prevents damage during the film tearing process, ensuring the original adhesion and performance of the product, and improving the overall process stability and ease of operation.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A foam structure that is easy for humans and machines to tear.

[0006] The foam structure that facilitates human-machine tearing specifically includes:

[0007] Light release film;

[0008] Double-sided adhesive foam, the double-sided adhesive foam includes a first double-sided adhesive layer, a second double-sided adhesive layer and a foam body, the foam body is adhered to the top of the light release film through the first double-sided adhesive layer, and the second double-sided adhesive layer is arranged on the top of the foam body;

[0009] Mesh release film gasket, the mesh release film gasket is in a mesh shape, and the mesh release film gasket is arranged at the corner of the top of the second double-sided adhesive layer;

[0010] Heavy release film, the heavy release film is covered and arranged on the top of the second double-sided adhesive layer and the mesh release film gasket.

[0011] As a preferred embodiment of the foam structure for facilitating human-machine film tearing provided by the present invention, the shape of the foam body is a "mouth" shape.

[0012] As a preferred embodiment of the foam structure for facilitating human-machine film tearing provided by the present invention, a tear handle is punched and arranged at a position where the corner of the heavy release film extends outside the double-sided adhesive foam, and the position of the tear handle is close to the mesh release film gasket.

[0013] As a preferred embodiment of the foam structure for facilitating human-machine film tearing provided by the present invention, the tear handle and the heavy release film are of an integrally formed structure.

[0014] As a preferred embodiment of the foam structure for facilitating human-machine film tearing provided by the present invention, the shape of the tear handle is one of a square, a triangle or an arc shape.

[0015] As a preferred embodiment of the foam structure for facilitating human-machine film tearing provided by the present invention, the length and width dimensions of the light release film are larger than the length and width dimensions of the double-sided adhesive foam.

[0016] As a preferred embodiment of the foam structure for facilitating human-machine film tearing provided by the present invention, the length and width dimensions of the heavy release film are equal to the length and width dimensions of the double-sided adhesive foam.

[0017] As a preferred embodiment of the foam structure for facilitating human-machine film tearing provided by the present invention, in the front view, a FPC clearance groove is arranged at the lower edge position of the double-sided adhesive foam and the heavy release film.

[0018] As a preferred embodiment of the foam structure for facilitating human-machine film tearing provided by the present invention, in the front view, the outer edge of the mesh release film gasket coincides with the outer edge of the double-sided adhesive foam.

[0019] As a preferred embodiment of the foam structure for easy human-machine tearing provided by this utility model, the material of the light release film is any one of PET, PE and PI.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This utility model provides a foam structure that facilitates manual and machine film removal. The grid release film pad is a grid-type release film, pre-attached to the heavy release film near the tear handle, between the double-sided adhesive and the heavy release film. Because the grid release film pad reduces the contact area between the heavy release film and the double-sided adhesive foam, the adhesion between the heavy release film and the foam adhesive layer is reduced, making it easier for the machine's robotic arm or manual operation to tear off the heavy release film. It also avoids the situation where the foam body is torn apart when tearing the heavy release film due to the excessive adhesion of the second double-sided adhesive foam. This design not only improves the convenience of manual operation when the equipment is insufficient, but also effectively prevents damage during the film removal process, ensuring the original adhesion and performance of the product, and improving the overall process stability and ease of operation. Attached Figure Description

[0022] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the foam structure that facilitates human-machine tearing of the film provided by this utility model;

[0024] Figure 2 for Figure 2 A magnified view of a portion at point A;

[0025] Figure 3 for Figure 2 Top view;

[0026] Figure 4 A schematic diagram of the foam structure for easy human-machine film tearing provided by this utility model (framed).

[0027] The markings in the diagram are explained as follows:

[0028] Light release film 100, double-sided adhesive foam 200, first double-sided adhesive layer 210, second double-sided adhesive layer 220, foam body 230, mesh release film gasket 300, heavy release film 400, tear handle 410, FPC anti-cavity groove 500. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0030] As mentioned in the background section, traditionally designed foam has strong adhesive properties, which makes manual operation difficult, especially when using automated assembly equipment. The equipment often alarms because it cannot effectively peel off the film, seriously affecting production efficiency. Regardless of whether manual or automated equipment is used to peel off the film, the strong adhesiveness of the foam often inevitably leads to the separation of the foam body 230 from the touch screen, resulting in a decrease in yield.

[0031] To solve this technical problem, this utility model provides a foam structure that is easy for humans and machines to tear.

[0032] For details, please refer to Figure 1-4 The foam structure that facilitates human-machine tearing specifically includes:

[0033] Light release film 100;

[0034] Double-sided adhesive foam 200 includes a first double-sided adhesive layer 210, a second double-sided adhesive layer 220 and a foam body 230. The foam body 230 is bonded to the top of the light release film 100 by the first double-sided adhesive layer 210, and the second double-sided adhesive layer 220 is disposed on the top of the foam body 230.

[0035] The mesh release film gasket 300 is mesh-shaped and is disposed at the top corner of the second double-sided adhesive layer 220.

[0036] A heavy release film 400 covers the top of the second double-sided adhesive layer 220 and the mesh release film gasket 300.

[0037] The foam structure provided by this utility model facilitates manual and machine tearing of the film. The grid release film pad 300 is a grid-type release film, pre-attached to the position of the heavy release film 400 near the tear handle 410, between the double-sided adhesive and the heavy release film 400. Because the grid release film pad 300 reduces the contact area between the heavy release film 400 and the double-sided adhesive foam 200, the adhesion between the heavy release film 400 and the foam adhesive layer is reduced, making it easier for the machine robot or manual to tear off the heavy release film 400. At the same time, it avoids the situation where the foam body 230 is torn apart when tearing the heavy release film 400 due to the excessive adhesion of the second double-sided adhesive foam 200. This design not only improves the convenience of manual operation when the equipment is insufficient, but also effectively prevents damage during the tearing process, ensures the original adhesion and performance of the product, and improves the stability and ease of operation of the overall process.

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0039] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0040] 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 further defined and explained in subsequent figures.

[0041] Example 1

[0042] Please refer to Figure 1-4 A foam structure that is easy for humans and machines to peel off, comprising a light release film 100;

[0043] Double-sided adhesive foam 200 includes a first double-sided adhesive layer 210, a second double-sided adhesive layer 220 and a foam body 230. The foam body 230 is bonded to the top of the light release film 100 by the first double-sided adhesive layer 210, and the second double-sided adhesive layer 220 is disposed on the top of the foam body 230.

[0044] The mesh release film gasket 300 is mesh-shaped and is disposed at the top corner of the second double-sided adhesive layer 220.

[0045] A heavy release film 400 covers the top of the second double-sided adhesive layer 220 and the mesh release film gasket 300.

[0046] Through the above structural design, the entire light release film 100 is not hollowed out and is attached to the double-sided adhesive foam 200. The designed outer periphery is larger than the outer periphery of the foam body 230. The reason is to facilitate the operator to manually pick up the material and quickly peel it off from the foam body 230. When it is used to fit with the first double-sided adhesive layer 210 under the foam body 230, it can protect the first double-sided adhesive layer 210 on the foam body 230 from being contaminated and the foam body 230 is not easily damaged by pressing, etc. The light release film 100 is peeled off before the double-sided adhesive foam 200 is attached to the touch screen;

[0047] The double-sided adhesive foam 200 is in the shape of a "square", that is, a "square" shaped foam is punched out on a single piece of foam. The middle is used for the display area of the display module to display, and it has a buffering effect between the touch screen and the display module; Both sides of the double-sided adhesive foam 200 are coated with glue layers (the first double-sided adhesive layer 210 and the second double-sided adhesive layer 220). The bottom surface of the foam body 230 is attached to the light release film 100 through the first double-sided adhesive layer 210, and the other side is attached to the heavy release film 400 through the second double-sided adhesive layer 220. When the light release film 100 and the heavy release film 400 are peeled off, one side is used to fit with the touch screen and the other side is used to fit with the display screen;

[0048] The mesh release film gasket 300 is a mesh-shaped release film, which is pre-fitted at a position close to the tear handle 410 of the heavy release film 400, between the double-sided adhesive and the heavy release film 400. Since the mesh release film gasket 300 reduces the contact area between the heavy release film 400 and the double-sided adhesive foam 200, the adhesion between the heavy release film 400 and the foam adhesive layer is reduced, so that it is easier for the equipment manipulator or manual labor to tear off the heavy release film 400. At the same time, it also avoids the situation that the foam body 230 is torn and separated when tearing the heavy release film 400 due to the too strong adhesion of the second double-sided adhesive foam 200. This design not only improves the manual operation convenience of the equipment in case of insufficient production, but also effectively prevents damage during the film tearing process, ensures the original adhesion and performance of the product, and improves the stability of the overall process and the convenience of operation.

[0049] Specifically, the shape of the foam body 230 is "square".

[0050] Through the above structural design, the foam body 230 is in the shape of a "square", that is, a "square" shaped foam is punched out on a single piece of foam. The middle is used for the display area of the display module to display, and it has a buffering effect between the touch screen and the display module.

[0051] Specifically, a tear handle 410 is punched and provided at a position where the corner of the heavy release film 400 extends outside the double-sided adhesive foam. The position of the tear handle 410 is close to the mesh release film gasket 300. Specifically, the tear handle 410 and the heavy release film 400 are of an integrally formed structure.

[0052] Through the above structural design, the tear handle 410 and the heavy release film 400 are integrated into one structure and are located close to the grid release film pad 300 for manual peeling of the heavy release film 400.

[0053] Specifically, the tear handle 410 is shaped like a square, a triangle, or an arc.

[0054] Through the above structural design, in this embodiment, the tear handle 410 is square in shape, but it can also be triangular or arc-shaped depending on different needs.

[0055] Example 2

[0056] The foam structure for easy tearing by humans and machines provided in Example 1 has been further optimized, specifically, as follows: Figure 1-4 As shown, the length and width dimensions of the light release film 100 are larger than those of the double-sided adhesive foam 200.

[0057] The structure is designed such that the outer perimeter is larger than the outer perimeter of the foam body 230 to facilitate manual material handling by the operator and to allow for quick removal from the foam body 230.

[0058] Example 3

[0059] The foam structure provided in Example 1 or 2, which facilitates human-machine tearing, is further optimized, such as... Figure 1-4 As shown, the length and width dimensions of the release film 400 are equal to those of the double-sided adhesive foam 200. Specifically, in a formal view, FPC clearance grooves 500 are provided at the lower edges of the double-sided adhesive foam 200 and the release film 400.

[0060] Through the above structural design, the FPC clearance slot 500 is used to clear the FPC in the frame-mounted screen, which helps to prevent structural interference.

[0061] Specifically, from a formal perspective, the outer edge of the mesh release film gasket 300 coincides with the outer edge of the double-sided adhesive foam 200.

[0062] Through the above structural design, the outer edge of the mesh release film gasket 300 coincides with the outer edge of the double-sided adhesive foam 200, which helps to prevent the mesh release film gasket 300 from being scratched off.

[0063] Specifically, the light release film 100 is made of any one of PET, PE and PI.

[0064] Through the above structural design, in this embodiment, the material of the light release film 100 is PET, but it can also be PE or PI depending on different needs.

[0065] The usage process of the foam structure with easy human-machine tearing film provided by this utility model is as follows:

[0066] The first step is to attach the touch screen to the foam. First, peel off the light release film 100 of the foam body 230 and attach the first double-sided adhesive layer 210 of the foam body 230 to the back of the touch screen.

[0067] The second step is to peel off the heavy release film 400 before bonding it to the display module. There are two peeling methods: First, hold the tear handle 410 of the heavy release film 400 and peel it off manually. Second, use the adhesive paper on the robotic arm of the equipment to stick the adhesive paper to the light release film 100 on the top of the grid release film pad 300.

[0068] The third step is to use equipment to peel off the film;

[0069] The fourth step is to attach the touchscreen with the peeled release film 400 and the foam body 230 to the display surface of the display module to complete the entire bonding process.

[0070] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0071] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A foam structure facilitating human-machine tearing of a film, characterized by It includes: A light release film (100); A double-sided adhesive foam (200), the double-sided adhesive foam (200) includes a first double-sided adhesive layer (210), a second double-sided adhesive layer (220) and a foam body (230), the foam body (230) is adhered to the top of the light release film (100) through the first double-sided adhesive layer (210), and the second double-sided adhesive layer (220) is provided on the top of the foam body (230); A mesh release film gasket (300), the mesh release film gasket (300) is in a mesh shape, and the mesh release film gasket (300) is provided at the corner of the top of the second double-sided adhesive layer (220); A heavy release film (400), the heavy release film (400) is covered and provided on the top of the second double-sided adhesive layer (220) and the mesh release film gasket (300).

2. The foam structure of claim 1, wherein, The shape of the foam body (230) is a "mouth" shape.

3. The foam structure for easy human-machine tearing of the film according to claim 2, characterized in that, A tear handle (410) is punch-cut at a position where the corner of the heavy release film (400) extends outside the double-sided adhesive foam (200), and the position of the tear handle (410) is close to the mesh release film gasket (300).

4. The foam structure of claim 3, wherein, The tear handle (410) and the heavy release film (400) are of an integrally formed structure.

5. The foam structure of claim 4, wherein, The shape of the tear handle (410) is one of a square, a triangle or an arc shape.

6. The foam structure of claim 1, wherein, The length and width dimensions of the light release film (100) are larger than the length and width dimensions of the double-sided adhesive foam (20).

7. The foam structure of claim 1, wherein, The length and width dimensions of the heavy release film (400) are equal to the length and width dimensions of the double-sided adhesive foam (200).

8. The foam structure of claim 1, wherein, In the front view, an FPC clearance groove (500) is provided at the lower edge position of the double-sided adhesive foam (200) and the heavy release film (400).

9. The foam structure of claim 1, wherein, In the front view, the outer edge of the mesh release film gasket (300) coincides with the outer edge of the double-sided adhesive foam (200).

10. The foam structure of claim 1, wherein, The production material of the light release film (100) is any one of PET, PE and PI.

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