Double-sided sticky foam structure

Abstract

The utility model discloses a double-sided sticky foamed plastic structure, which comprises a bearing film, a plurality of adhesive tapes, a plurality of adhesive tapes and a plurality of adhesive tapes, and is characterized in that a bearing area is arranged on the bearing film; the double-sided sticky foam is positioned on the bearing film and is provided with a sticky surface I and a sticky surface II; the heavy release film is arranged on the adhesive surface II, far away from one side of the bearing film, of the double-sided adhesive foam and is used for protecting the adhesive surface II; and the light release film is positioned on the bearing film and is adhered to the double-sided adhesive foam through the adhesive surface I so as to protect the adhesive surface I when the double-sided adhesive foam is taken out from the bearing film. According to the double-sided adhesive foam structure provided by the utility model, the low-viscosity light release film is additionally arranged between the double-sided adhesive and the bearing film, and the double-sided adhesive is partially covered by the light release film, so that the double-sided adhesive area which is not covered can be firmly adhered to the bearing film; the equidistant arrangement of the plurality of double-sided sticky foam groups is formed, so that the subsequent use is facilitated, and meanwhile, the falling can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of double-sided adhesive, in particular to a double-sided adhesive foam structure. Background Art

[0002] The traditional double-sided adhesive board structure includes a first layer of heavy release film, a second layer of double-sided adhesive, and a third layer of carrier film for carrying the double-sided adhesive board material. In actual operation, since the double-sided adhesive needs to be removed from the carrier film and placed on a bonding fixture, the sticky surface of the double-sided adhesive is easily contaminated by the touch of employees' gloves, thereby affecting the quality of the product and production efficiency. In addition, this operation method also increases the complexity of the operation, which is not conducive to improving production efficiency. For this reason, the present application proposes a double-sided adhesive foam structure. Utility Model Content

[0003] Based on this, it is necessary to provide a double-sided adhesive foam structure to address the above-mentioned technical problems. A low-viscosity light release film is added between the double-sided adhesive and the carrier film. This light release film partially covers the double-sided adhesive so that the uncovered double-sided adhesive area can be firmly attached to the carrier film to prevent it from falling. At the same time, the part covered by the light release film can protect the sticky surface from being contaminated when employees take and place the double-sided adhesive.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A double-sided sticky foam structure, comprising a carrier film, on which a carrier area is provided;

[0006] Double-sided sticky foam, which is located on the carrier film and has a first sticky surface and a second sticky surface;

[0007] A heavy release film is arranged on the second adhesive surface of the double-sided adhesive foam away from the carrier film to protect the second adhesive surface;

[0008] The light release film is located on the carrier film and adhered to the double-sided adhesive foam through the adhesive surface 1 to protect the double-sided adhesive foam when it is removed from the carrier film.

[0009] Furthermore, the double-sided adhesive foam is designed as an L-shaped structure, and the corresponding heavy release film and light release film are both adapted to its shape.

[0010] Furthermore, one end of the heavy release film extends to cover the outer side of the double-sided adhesive foam, and the other end is flush with the end of the double-sided adhesive foam;

[0011] The two ends of the light release film are located on the double-sided adhesive foam, and an adhesion area is formed between the two ends of the light release film and the double-sided adhesive foam, through which the double-sided adhesive foam can be stably adhered to the carrier film through the adhesive surface to form an arrangement.

[0012] Furthermore, an easy-tear handle is punched out of the portion of the heavy release film extending outside the double-sided adhesive foam.

[0013] Furthermore, the light release film is provided with a protection zone toward the first adhesive surface, and the protection zone is attached to the first adhesive surface to prevent the adhesive surface from being contaminated.

[0014] Furthermore, the light release film, the double-sided adhesive foam and the heavy release film are sequentially combined from bottom to top to form a double-sided adhesive foam group, and there are multiple groups of double-sided adhesive foam groups on the same carrier film;

[0015] Wherein, a plurality of groups of the double-sided adhesive foam groups are arranged in sequence and at equal intervals on the carrier film to form a mosaic state.

[0016] Furthermore, auxiliary units are provided at both ends of the light release film, and the light release film can be easily torn off from the double-sided adhesive foam through the auxiliary units.

[0017] Furthermore, the auxiliary unit is specifically a tearing handle integrally formed with the light release film.

[0018] Furthermore, the tearing handle is in a shape of a triangle or an arc.

[0019] Furthermore, the auxiliary unit is specifically composed of two triangular protruding handles arranged in parallel and integrally formed with the light release film;

[0020] Wherein, a connecting section is formed at the transition between the two opposite corner ends of the two triangular protruding handles, and a stress dispersion hole is punched on the outer side of the connecting section;

[0021] A pasting gap is formed between the two triangular protruding handles.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The double-sided adhesive foam structure provided by the utility model adds a low-viscosity light release film between the double-sided adhesive foam and the carrier film. The light release film partially covers the double-sided adhesive foam, so that the uncovered double-sided adhesive foam area can be firmly attached to the carrier film, forming a plurality of double-sided adhesive foam groups arranged equidistantly, which is convenient for subsequent removal and use, and can also prevent falling. Moreover, since the light release film partially covers the surface of the double-sided adhesive foam, the first adhesive surface of the double-sided adhesive foam can be protected, and since the second adhesive surface is protected by the heavy release film, the situation that the adhesive surface of the double-sided adhesive foam is contaminated during the actual taking process is avoided.

[0024] By setting the auxiliary unit, tearing structures can be extended from both ends of the light release film, thereby facilitating the removal of the light release film when the double-sided sticky foam is attached and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the paneling structure of the double-sided foam structure provided by the utility model;

[0026] Figure 2 A schematic diagram of the structure of the double-sided sticky foam structure provided by the utility model;

[0027] Figure 3 A schematic diagram of the disassembled structure of the double-sided sticky foam structure provided by the utility model;

[0028] Figure 4 A schematic diagram of the light release film structure of the double-sided adhesive foam structure provided by the utility model;

[0029] Figure 5 A schematic diagram of the auxiliary unit structure of the double-sided adhesive foam structure provided by the utility model;

[0030] Figure 6 A schematic diagram of the auxiliary unit structure in Embodiment 5 of the double-sided adhesive foam structure provided by the utility model;

[0031] Figure 7 A schematic diagram of the auxiliary unit structure in Example 6 of the double-sided adhesive foam structure provided by the utility model;

[0032] Figure 8 This is a side structural schematic diagram of the double-sided sticky foam structure provided by the utility model.

[0033] The markings in the figure are as follows:

[0034] Carrying film 1, carrying area 11;

[0035] Double-sided adhesive foam 2, adhesive side 1 21, adhesive side 2 22,

[0036] Heavy release film 3, easy-tear handle 31;

[0037] Light release film 4; attachment area 41, protection area 42,

[0038] Auxiliary unit 5, tearing handle 51, triangular protruding handle 52, connecting section 53, stress dispersion hole 54, pasting gap 55. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0040] As described in the background technology, the traditional double-sided adhesive board structure includes a first layer of heavy release film, a second layer of double-sided adhesive, and a third layer of carrier film for carrying the double-sided adhesive board material. In the actual operation process, since the double-sided adhesive needs to be removed from the carrier film and placed on the bonding fixture, the adhesive surface of the double-sided adhesive is easily contaminated by the touch of the employee's gloves, thereby affecting the product quality and production efficiency.

[0041] In order to solve this technical problem, the utility model provides a double-sided sticky foam structure, which is applied to double-sided sticky foam.

[0042] Specifically, please refer to Figure 1-4 , the double-sided sticky foam structure specifically includes:

[0043] A carrier film 1, on which a carrier area 11 is provided;

[0044] Double-sided adhesive foam 2, which is located on the carrier film 1 and has an adhesive surface 1 21 and an adhesive surface 22;

[0045] A heavy release film 3, which is arranged on the second adhesive surface 22 of the double-sided adhesive foam 2 away from the carrier film 1, and is used to protect the second adhesive surface 22;

[0046] The light release film 4 is located on the carrier film 1 and adhered to the double-sided adhesive foam 2 through the adhesive surface 1 21 to protect the double-sided adhesive foam 2 when the adhesive surface 1 21 is removed from the carrier film 1 .

[0047] The double-sided sticky foam structure provided by the utility model adds a low-viscosity light release film 4 between the double-sided sticky foam 2 and the carrier film 1. The light release film 4 partially covers the sticky surface 21 of the double-sided sticky foam 2, so that the sticky surface 21 area on the double-sided sticky foam 2 that is not covered can be firmly attached to the carrier film 1 to prevent it from falling. Moreover, since the light release film 4 partially covers the surface of the double-sided sticky foam 2, the sticky surface 1 of the double-sided sticky foam 2 can be protected, and since the sticky surface 22 is protected by the heavy release film, contamination of the sticky surface of the double-sided sticky foam during the actual taking process is avoided.

[0048] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0049] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0050] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0051] Example 1

[0052] Please refer to Figure 1-4 A double-sided adhesive foam structure, comprising: a carrier film 1, on which a carrier area 11 is provided; a double-sided adhesive foam 2, which is located on the carrier film 1 and has an adhesive surface 1 21 and an adhesive surface 22; a heavy release film 3, which is arranged on the adhesive surface 22 of the double-sided adhesive foam 2 away from the carrier film 1, and is used to form a protection for the adhesive surface 22; a light release film 4, which is located on the carrier film 1 and adhered to the double-sided adhesive foam 2 through the adhesive surface 1 21, so as to protect the adhesive surface 1 21 of the double-sided adhesive foam 2 when it is taken out from the carrier film 1;

[0053] The viscosity of the above-mentioned light release film 4 is lower than the viscosity of the double-sided adhesive foam 2 itself. By setting the different viscosities, the light release film 4 can be attached to the carrier film 1, and at the same time, due to its low viscosity, the bonding strength between the light release film 4 and the carrier film 1 can be reduced during the subsequent tearing process, making it easier to remove;

[0054] like Figure 1 As shown, the double-sided adhesive foam 2 is designed as an L-shaped structure, and the corresponding heavy release film 3 and light release film 4 are adapted to its shape, and the sequential distribution of multiple groups of double-sided adhesive foam structures can be achieved through the cooperation of a single carrier film 1;

[0055] One end of the heavy release film 3 extends to cover the outer side of the double-sided adhesive foam 2, and the other end is flush with the end of the double-sided adhesive foam 2. The two ends of the light release film 4 are located on the double-sided adhesive foam 2, and an attachment area 41 is formed between the two ends of the light release film 4 and the double-sided adhesive foam 2. Through the attachment area 41, the double-sided adhesive foam 2 can be stably adhered to the carrier film 1 through the adhesive surface 21 to form an arrangement;

[0056] like Figure 2 , Figure 3 and Figure 4As shown, since the light release film 4 only partially covers the double-sided adhesive foam 2, the double-sided adhesive foam 2 exposed outside the light release film 4 can be bonded with the corresponding carrier film 1 through the adhesive surface 21 thereon, thereby ensuring the stable arrangement of the double-sided adhesive foam 2.

[0057] Example 2

[0058] The double-sided sticky foam structure provided in Example 1 is further optimized, specifically, as follows Figure 2 As shown, the portion of the heavy release film 3 extending outside the double-sided adhesive foam 2 is punched with an easy-tear handle 31;

[0059] After the heavy release film 3 is attached to the outer surface of the corresponding double-sided adhesive foam 2, it forms a protection for the adhesive surface 22 on the double-sided adhesive foam 2, preventing external dust particles from directly contacting the adhesive surface 22 and affecting the bonding strength during subsequent use;

[0060] At the same time, due to the design of the easy-to-tear handle 31, after the double-sided adhesive foam structure is embedded and pasted in the LENS or module alignment groove, it can be removed from the surface of the double-sided adhesive foam 2 by pulling one end of the easy-to-tear handle 31, thereby exposing the sticky surface 22 on the double-sided adhesive foam 2, so that it can be pasted with other external objects, which is convenient for operators to use.

[0061] Example 3

[0062] The double-sided adhesive foam structure provided in Example 1 or 2 is further optimized, such as Figure 2 As shown, the light release film 4 is formed with a protection zone 42 toward the adhesive surface 1 21, and the protection zone 42 is attached to the adhesive surface 1 21 to prevent the adhesive surface from being contaminated;

[0063] Since the light release film 4 partially covers the adhesive surface 21 on the double-sided adhesive foam 2, the covered adhesive surface 21 can be isolated and protected by the light release film 4. At the same time, during the process of taking out the double-sided adhesive foam structure from the carrier film 1, the operator can touch the outer side of the light release film 4 covered by the outer side of the protected protection area 42 with his hand. By directly contacting the light release film 4, the double-sided adhesive foam 2 can be taken and used. At the same time, the adhesive surface 21 on the double-sided adhesive foam 2 is effectively protected during the taking process, so that the subsequent bonding strength is guaranteed.

[0064] The light release film 4, the double-sided adhesive foam 2 and the heavy release film 3 are combined in sequence from bottom to top to form a double-sided adhesive foam group, and there are multiple double-sided adhesive foam groups on the same carrier film 1, wherein the multiple double-sided adhesive foam groups are arranged in sequence and at equal intervals on the carrier film 1 to form a patchwork state. By arranging the multiple double-sided adhesive foam groups on a single carrier film 1, the utilization rate of the carrier area 11 on the carrier film 1 is improved. At the same time, when the double-sided adhesive foam group is embedded in the alignment grooves of multiple lenses or modules, the need to continuously take out multiple double-sided adhesive foam groups in sequence is avoided, thereby effectively improving the efficiency of the operator.

[0065] Example 4

[0066] The double-sided adhesive foam structure provided in Examples 1, 2 and 3 is further optimized. In order to better realize the tearing of the light release film 4 during the embedding operation of the double-sided adhesive foam group in the lens or module alignment groove, so that the adhesive surface 21 thereon is exposed for the attachment operation, an auxiliary unit 5 is added, as follows:

[0067] like Figure 2 As shown, auxiliary units 5 are provided at both ends of the light release film 4, and the light release film 4 can be easily torn off from the double-sided adhesive foam 2 through the auxiliary units 5;

[0068] Example 5

[0069] like Figure 5 and Figure 6 As shown, the double-sided sticky foam structure provided in Example 4 is further optimized, and the auxiliary unit 5 is specifically a tearing handle 51 integrally formed with the light release film 4;

[0070] The tearing handle 51 can be punched out of the light release film 4, and the tearing handle 51 itself is not sticky. Therefore, when the double-sided sticky foam 2 is embedded and installed in the lens or module alignment groove, since the tearing handle 51 itself protrudes from one side of the light release film 4, it is convenient to bend and tilt one end of the tearing handle 51, and then tear it off so that the light release film 4 connected to it can be taken out simultaneously;

[0071] And because the tearing handle 51 itself is not sticky, the viscosity of the contact surface between it and the double-sided sticky foam 2 is also low, thereby further facilitating the tearing operation of the light release film 4;

[0072] The tear handle 51 is in the shape of a triangle or an arc. In this embodiment, only two shapes are listed. The tear handle 51 can also be set to other shapes as long as its end is not parallel to the end of the light release film 4 and is easy to open and tear.

[0073] Example 6

[0074] like Figure 7 As shown, the double-sided adhesive foam structure provided in Example 4 is further optimized, and the auxiliary unit 5 is specifically composed of two triangular protruding handles 52 arranged in parallel and integrally formed with the light release film 4;

[0075] The difference between this embodiment and the embodiment 5 is that the auxiliary unit 5 in this embodiment is composed of two easy-tear structures, so that during the actual pasting operation of the double-sided adhesive foam structure, the auxiliary unit 5 can be buckled on any side, so that it is not necessary to extend the fingers to the middle of the light release film 4 to contact the end of the auxiliary unit 5 for tearing operation as in the embodiment 5, which further reduces the contamination of the double-sided adhesive foam 2.

[0076] A connecting section 53 is formed at the transition between the two opposite corners of the two triangular protruding handles 52, and a stress dispersion hole 54 is punched out on the outer side of the connecting section 53. The structural design of the connecting section 53 increases the connection strength between the two triangular protruding handles 52, so that when the end of any triangular protruding handle 52 is torn off, the breakage of the connection can be effectively avoided, which makes it impossible to tear off the light release film 4.

[0077] At the same time, due to the design of the stress dispersion hole 54, the tearing force is evenly distributed on the two triangular protruding handles 52 during tearing, thus avoiding the situation that the stress is too concentrated and easily causes tearing;

[0078] like Figure 7 As shown, as a further optimization of the present embodiment: a sticking gap 55 is formed between the two triangular protrusions 52. The opening of the sticking gap 55 allows the light release film 4 to be attached to the surface of the double-sided adhesive foam 2 through the sticking gap 55 so that the sticky surface 21 is partially attached to the carrier film 1, thereby preventing the triangular protrusions 52 from curling up independently during the attachment process, and effectively increasing the bonding strength between the double-sided adhesive foam 2 and the contact surface of the carrier film 1.

[0079] The use process of the double-sided sticky foam structure provided by the utility model is as follows:

[0080] By adding a low-viscosity light release film 4 between the double-sided adhesive foam 2 and the carrier film 1, the light release film 4 partially covers the adhesive surface 1 21 of the double-sided adhesive foam 2, so that the adhesive surface 1 21 area of ​​the double-sided adhesive foam 2 that is not covered can be firmly attached to the carrier film 1 to prevent it from falling off, and because the light release film 4 partially covers the surface of the double-sided adhesive foam 2, the adhesive surface 1 of the double-sided adhesive foam 2 can be protected, and because the adhesive surface 22 is protected by the heavy release film, it is avoided The situation in which the sticky surface of the double-sided sticky foam is contaminated during the actual taking process is avoided. When the double-sided sticky foam group is placed in the LENS or module alignment groove for operation, the tearing handle 51 is buckled on one side of the light release film 4, which facilitates the removal of the light release film 4, so that the sticky surface 1 21 is completely exposed for the sticking operation, and then the heavy release film 3 can be taken out through the easy-tear handle 31, so that the sticky surface 1 21 and the sticky surface 2 22 on the double-sided sticky foam 2 are exposed for sticking.

[0081] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0082] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A double-sided sticky foam structure, characterized in that: It includes: A carrier film (1), wherein a carrier area (11) is provided on the carrier film (1); A double-sided adhesive foam (2), which is located on the carrier film (1) and has an adhesive surface 1 (21) and an adhesive surface 2 (22); A heavy release film (3) is arranged on the second adhesive surface (22) of the double-sided adhesive foam (2) away from the carrier film (1) to protect the second adhesive surface (22); A light release film (4) is located on the carrier film (1) and is adhered to the double-sided adhesive foam (2) via the adhesive surface 1 (21) so as to protect the adhesive surface 1 (21) of the double-sided adhesive foam (2) when it is removed from the carrier film (1).

2. The double-sided adhesive foam structure according to claim 1, characterized in that: The double-sided adhesive foam (2) is designed as an L-shaped structure, and the corresponding heavy release film (3) and light release film (4) are both adapted to its shape.

3. The double-sided adhesive foam structure according to claim 2, characterized in that: One end of the heavy release film (3) extends to cover the outer side of the double-sided adhesive foam (2), and the other end is flush with the end of the double-sided adhesive foam (2); The two ends of the light release film (4) are located on the double-sided adhesive foam (2), and an attachment area (41) is formed between the two ends of the light release film (4) and the double-sided adhesive foam (2). The attachment area (41) enables the double-sided adhesive foam (2) to be stably adhered to the carrier film (1) through the adhesive surface (21) to form an arrangement.

4. The double-sided adhesive foam structure according to claim 1, characterized in that: An easy-tear handle (31) is punched out of the portion of the heavy release film (3) extending outside the double-sided adhesive foam (2).

5. The double-sided adhesive foam structure according to claim 1, characterized in that: The light release film (4) is provided with a protection zone (42) facing the first adhesive surface (21), and is attached to the first adhesive surface (21) through the protection zone (42) to prevent the adhesive surface from being contaminated.

6. The double-sided adhesive foam structure according to claim 1, characterized in that: The light release film (4), the double-sided adhesive foam (2) and the heavy release film (3) are sequentially combined from bottom to top to form a double-sided adhesive foam group, and a plurality of double-sided adhesive foam groups are provided on the same carrier film (1); Wherein, a plurality of groups of the double-sided adhesive foam groups are arranged in sequence and at equal intervals on the carrier film (1) to form a mosaic state.

7. The double-sided adhesive foam structure according to claim 1, characterized in that: Both ends of the light release film (4) are provided with auxiliary units (5), and the light release film (4) can be easily torn off from the double-sided adhesive foam (2) through the auxiliary units (5).

8. The double-sided adhesive foam structure according to claim 7, characterized in that: The auxiliary unit (5) is specifically a tearing handle (51) formed integrally with the light release film (4).

9. The double-sided adhesive foam structure according to claim 8, characterized in that: The tearing handle (51) is in the shape of a triangle or an arc.

10. The double-sided adhesive foam structure according to claim 9, characterized in that: The auxiliary unit (5) is specifically composed of two triangular protruding handles (52) arranged in parallel and integrally formed with the light release film (4); Wherein, the two triangular protruding handles (52) are transitionally connected to each other at their opposite corner ends to form a connecting section (53), and a stress dispersion hole (54) is punched out on the outside of the connecting section (53); A pasting gap (55) is formed between the two triangular protruding handles (52) facing each other.

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