Double faced adhesive tape structure
By designing a central hole and vent in the double-sided adhesive structure, the problems of uneven adhesion and air bubbles on the aluminum emblem surface are solved, improving the bonding strength between the aluminum emblem and the plastic, and enhancing the quality and service life of the automotive center cover.
Patent Information
- Application Number
- CN202520258902.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-18
AI Technical Summary
During the production of the car center cover, uneven application of double-sided tape to the aluminum emblem surface can easily cause air bubbles and bulges, leading to the emblem falling off and affecting the overall quality and service life.
A double-sided adhesive structure was designed, including a central hole and a vent. The central hole avoids the area where injection pressure is concentrated, and the vent guides air out through notches and round holes to avoid the generation of air bubbles.
This effectively prevents the formation of air bubbles, improves the bonding strength between the aluminum label and the plastic, and increases the product yield and service life.
Smart Images
Figure CN223892668U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of injection molding and assembly technology, and particularly relates to double-sided adhesive structure. Background Technology
[0002] With the continuous development of the automotive industry, the requirements for the appearance and functionality of automotive parts are increasing. As a component that combines aesthetics and identification, the market demand for aluminum logo center caps is gradually increasing. Currently, most aluminum logo center caps on the market are bonded using in-mold injection molding, which fixes the aluminum logo to the plastic, thus achieving a tight bond between the aluminum logo and the center cap.
[0003] However, in actual production, this traditional in-mold injection molding process has some problems that urgently need to be solved. When applying double-sided tape, due to the material properties of the tape itself and imperfections in the application process, the tape often adheres unevenly to the aluminum emblem surface, resulting in irregular bulges and air bubbles. These air bubbles can cause the aluminum emblem to easily detach, thus affecting the overall quality and service life of the automotive center cover, and causing numerous inconveniences to the production of automotive parts.
[0004] Therefore, how to avoid air bubbles during the application of double-sided tape is a technical problem that urgently needs to be solved in this field.
[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content
[0006] This disclosure provides at least one double-sided adhesive structure.
[0007] In a first aspect, embodiments of this disclosure provide a double-sided adhesive structure, comprising:
[0008] The adhesive body is suitable for bonding to the back of the aluminum label cap;
[0009] A central hole is formed in the middle of the adhesive body;
[0010] An exhaust vent is provided on the outer periphery of the adhesive body to guide air out when applying double-sided adhesive.
[0011] In one alternative embodiment, the venting portion includes a plurality of the notches, which are evenly distributed in the peripheral region of the gel body, and the notches extend radially along the gel body.
[0012] In one alternative embodiment, the venting portion includes circular holes, and a plurality of the circular holes are evenly distributed in the outer peripheral region of the adhesive body.
[0013] In one optional embodiment, the venting portion includes a plurality of the circular holes, which are evenly distributed in the peripheral region of the collagen body.
[0014] Several notches extend radially along the body of the adhesive, and each notch and its two sides are provided with at least one round hole.
[0015] In one alternative embodiment, the diameter of the central hole is 1 / 4 to 1 / 3 of the diameter of the adhesive body.
[0016] In one alternative embodiment, there are at least four notches, with each pair of circular holes symmetrically arranged on both sides of the notch.
[0017] In one optional embodiment, the adhesive body is circular, the central hole is circular, and the outer diameter of the adhesive body is not greater than the diameter of the back of the aluminum label.
[0018] In one alternative embodiment, the adhesive body is rectangular and the central hole is circular.
[0019] In one alternative embodiment, the adhesive body is adapted to be adhered to the back of the aluminum label cap;
[0020] An exhaust vent is provided on the outer periphery of the adhesive body to guide air out when applying double-sided adhesive.
[0021] In one optional embodiment, the venting portion includes a plurality of notches, which are evenly distributed in the peripheral region of the gel body, and each notch extends radially along the gel body.
[0022] Alternatively, the venting section includes a plurality of the circular holes, which are evenly distributed in the outer peripheral region of the adhesive body;
[0023] Alternatively, the exhaust section includes:
[0024] Several of the aforementioned circular holes;
[0025] Several notches extend radially along the body of the adhesive, and each notch has at least one round hole on both sides.
[0026] The beneficial effects of this utility model are that a double-sided adhesive structure, by opening a central hole and an air vent on the adhesive body, avoids the generation of air bubbles when the adhesive body is adhered to the back of the aluminum label cap; and when the aluminum label cap is injection molded, it avoids being washed away and moved by plastic particles during the injection molding process, thereby improving the product yield.
[0027] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.
[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art 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.
[0030] Figure 1 A perspective view of the double-sided adhesive structure provided in the embodiments of this disclosure;
[0031] Figure 2 This is a schematic diagram of the first state of the double-sided adhesive structure provided in the embodiments of this disclosure;
[0032] Figure 3 This is a schematic diagram of the second state of the double-sided adhesive structure provided in the embodiments of this disclosure;
[0033] Figure 4 This is a schematic diagram showing the unfolded state of the adhesive body and aluminum label provided in an embodiment of this disclosure.
[0034] In the picture:
[0035] 1. Glue body; 2. Center hole; 3. Vent; 31. Round hole; 32. Notch; 4. Aluminum label cap. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0037] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.
[0038] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0039] Research has revealed shortcomings in existing technologies: In actual production, this traditional in-mold injection molding process presents several problems that urgently need to be addressed. When applying double-sided tape, due to the material properties of the tape itself and imperfections in the application process, the tape often adheres unevenly to the aluminum emblem surface, resulting in irregular bulges and air bubbles. These air bubbles can cause the aluminum emblem to easily detach, thus affecting the overall quality and lifespan of the automotive center cover, and causing numerous inconveniences in the production of automotive parts.
[0040] Therefore, how to avoid air bubbles or uneven adhesion during the double-sided tape application process is a technical problem that urgently needs to be solved in this field.
[0041] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.
[0042] 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.
[0043] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0044] like Figures 1 to 4 As shown, at least one embodiment provides a double-sided adhesive structure, including: an adhesive body 1, suitable for adhering to the back of an aluminum center cap 4, which in this embodiment is a car center cap. The adhesive body 1 is a double-sided adhesive, and the material of the adhesive body 1 is a high-temperature resistant material with good adhesion to ensure adhesion performance during injection molding. A central hole 2 is formed in the middle of the adhesive body 1 and is used to avoid areas of concentrated injection pressure during injection molding. The adhesive body 1 is circular, and the central hole 2 is a circular hole with a diameter of 1 / 4 to 1 / 3 of the diameter of the adhesive body 1. The central hole 2 prevents the adhesive body 1 from being washed away by the injection pressure of the injection particles during injection molding, which helps to alleviate adhesive overflow on the plastic surface.
[0045] Reference Appendix Figure 1 The venting section 3 is located on the outer periphery of the adhesive body 1 and is used to guide air out during the application of double-sided adhesive. The venting section 3 includes eight round holes 31 and four notches 32, which are alternately arranged on the outer periphery of the adhesive body 1. The notches 32 extend radially along the adhesive body 1, and every two round holes 31 are symmetrically arranged on either side of each notch 32. The outer diameter of the adhesive body 1 is no greater than the diameter of the back of the aluminum label 4.
[0046] Reference Appendix Figure 4 In use, the adhesive body 1 with a double-sided adhesive structure is attached to the back of the aluminum cover 4, and then the aluminum cover 4 is placed into the injection mold for in-mold injection molding. During the injection molding process, the central hole 2 can preferably avoid the concentrated area of injection pressure to prevent the adhesive body 1 from being washed away and detached. At the same time, the round hole 31 and notch 32 in the venting part 3 can guide air out and avoid the generation of air bubbles, thereby improving the adhesion effect of the adhesive body 1 and increasing the bonding strength between the aluminum cover 4 and the plastic.
[0047] Depending on the different shapes of the aluminum cap 4, the adhesive body 1 can be circular, rectangular, or other shapes adapted to the shape of the aluminum cap 4.
[0048] Reference Appendix Figure 2 In at least one embodiment, the exhaust portion 3 includes only notches 32, and a plurality of notches 32 are evenly distributed in the outer peripheral region of the adhesive body 1, and the notches 32 extend radially along the adhesive body 1. This design can also effectively guide air out and avoid the generation of bubbles.
[0049] Reference Appendix Figure 3In at least one embodiment, the exhaust section 3 includes only circular holes 31, and a plurality of the circular holes 31 are evenly distributed in the outer peripheral region of the adhesive body 1. This design can also effectively guide air out and avoid the generation of air bubbles.
[0050] like Figure 4 As shown, at least one embodiment provides a double-sided adhesive structure, characterized in that: an adhesive body 1 is adapted to be pasted on the back of an aluminum label 4; and an exhaust portion 3 is disposed in the outer peripheral area of the adhesive body 1 for guiding air out when the double-sided adhesive is pasted.
[0051] In summary, the double-sided adhesive structure of this utility model effectively solves the problems of air bubbles or uneven adhesion that are easily generated during the application of double-sided adhesive in the prior art by optimizing the design of the central hole 2 and the venting part 3, thereby improving the bonding strength between the aluminum label and the plastic, and thus improving the overall quality and service life of the automotive center cover.
[0052] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0053] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0054] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A double-sided adhesive structure, characterized in that, include: The adhesive body (1) is suitable for being pasted onto the back of the aluminum label cap (4); A central hole (2) is formed in the middle of the adhesive body (1); The exhaust section (3) is disposed on the outer peripheral area of the adhesive body (1) and is used to guide air out when the double-sided adhesive is applied.
2. The double-sided adhesive structure as described in claim 1, characterized in that, The exhaust portion (3) includes a plurality of notches (32) and is evenly distributed in the outer peripheral region of the adhesive body (1), and the notches (32) extend radially along the adhesive body (1).
3. The double-sided adhesive structure as described in claim 1, characterized in that, The exhaust section (3) includes a circular hole (31), and a plurality of the circular holes (31) are evenly distributed in the outer peripheral area of the adhesive body (1).
4. The double-sided adhesive structure as described in claim 1, characterized in that, The exhaust section (3) includes a plurality of the circular holes (31) and is evenly distributed in the outer peripheral area of the adhesive body (1); Several notches (32) extend radially along the adhesive body (1), and each notch (32) and its two sides are provided with at least one round hole (31).
5. The double-sided adhesive structure as described in claim 4, characterized in that, The diameter of the central hole (2) is 1 / 4 to 1 / 3 of the diameter of the gel body (1).
6. The double-sided adhesive structure as described in claim 5, characterized in that, There are at least four notches (32), and every two circular holes (31) are symmetrically arranged on both sides of the notch (32).
7. The double-sided adhesive structure as described in claim 1, characterized in that, The adhesive body (1) is circular, the central hole (2) is circular, and the outer diameter of the adhesive body (1) is not greater than the diameter of the back of the aluminum cover (4).
8. The double-sided adhesive structure as described in claim 1, characterized in that, The adhesive body (1) is rectangular, and the central hole (2) is circular.
9. A double-sided adhesive structure, characterized in that, The adhesive body (1) is suitable for being pasted onto the back of the aluminum label cap (4); The exhaust section (3) is disposed on the outer peripheral area of the adhesive body (1) and is used to guide air out when the double-sided adhesive is applied.
10. The double-sided adhesive structure according to claim 9, characterized in that, The exhaust section (3) includes a plurality of notches (32) and is evenly distributed in the outer peripheral area of the adhesive body (1), and each notch (32) extends radially along the adhesive body (1); Alternatively, the exhaust portion (3) includes a plurality of the circular holes (31) and is evenly distributed in the outer peripheral area of the adhesive body (1); Alternatively, the exhaust section (3) may include: Several of the aforementioned circular holes (31); Several notches (32) extend radially along the adhesive body (1), and each notch (32) has at least one round hole (31) on both sides.