Embossing roller for solving non-uniform gram weight adhesive film
By designing embossing rollers with deep and light patterns, the defective problems such as glue deficiency and bubbles caused by low edge weight during the lamination process of photovoltaic module packaging film are solved, and overall cost reduction and efficiency improvement are achieved and the film is conveniently curled and transported.
Patent Information
- Application Number
- CN202422065929.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the prior art, during the lamination process of photovoltaic module packaging film, poor problems such as glue deficiency and bubbles are caused by low gram weight on the edges of the film, and the overall cost reduction and efficiency improvement are relatively inconvenient.
An embossing roller including an embossing roller body, a deep pattern and a light pattern is designed. By having a deep pattern in the middle of the embossing roller body and a light pattern on both sides, the film density and gram weight are gradually reduced, thereby solving the problem of low gram weight on the edge.
The solution to the poor problems such as glue shortage and bubbles caused by low gram weight of the film edge in the EVA film packaging and lamination process of photovoltaic modules is achieved, and the overall cost reduction and efficiency improvement is achieved, which facilitates the winding and transportation of the film.
Smart Images
Figure CN222792761U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of photovoltaic encapsulation adhesive film preparation, and relates to an embossing roller for solving the problem of non-uniform grammage adhesive film. Background Art
[0002] At present, the industry generally uses regular cylindrical steel rollers in film casting lines to extrude the film into an embossed shape to produce packaging films with uniform gram weight, uniform thickness and uniform density. The photovoltaic module packaging films produced by regular cylindrical steel rollers have certain defects in the lamination process. Under the general trend of reducing costs and increasing efficiency, the overall gram weight and thickness of the film are getting lower and lower, resulting in defects such as lack of glue and bubbles at the edges of the components after lamination. The mainstream process in the industry compensates for the gram weight and thickness of the film edges by placing small strips of film on the edges, which is inconvenient. Summary of the invention
[0003] The purpose of the utility model is to solve the above-mentioned problems in the existing technology and propose an embossing roller for solving the problem of non-uniform grammage of adhesive film, and solve the problems of photovoltaic module encapsulation adhesive film produced by regular cylindrical steel roller, such as lack of adhesive at the edge and bubbles after module lamination.
[0004] The purpose of the utility model can be achieved through the following technical solutions:
[0005] An embossing roller for solving the problem of non-uniform grammage of a rubber film, characterized in that it comprises an embossing roller body, a deep pattern is arranged in the middle of the embossing roller body, and shallow patterns are arranged on both sides of the embossing roller body.
[0006] In the above-mentioned embossing roller for solving the problem of non-uniform grammage of rubber film, the embossing roller body is made of steel.
[0007] Compared with the prior art, the utility model has the following advantages:
[0008] By modifying the pattern of the embossing roller in the film production cast line, while achieving uniform thickness of the EVA encapsulation film, lighter patterns are used on both sides and darker patterns are used in the middle. After the film is embossed on the embossing roller body, the film density on both sides is greater than that in the middle, and the edge density and gram weight are gradually reduced relative to the middle, thereby achieving overall cost reduction and efficiency improvement while solving the problems of glue shortage, bubbles and other defects caused by the low gram weight of the film edge during the EVA film encapsulation lamination process of photovoltaic modules, and facilitating the winding and transportation of the film. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a structural schematic diagram of the utility model.
[0010] In the figure,
[0011] 1. Embossing roller body; 2. Deep pattern; 3. Shallow pattern. DETAILED DESCRIPTION
[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0013] like Figure 1 As shown,
[0014] An embossing roller for solving the problem of non-uniform grammage of a rubber film, characterized in that it comprises an embossing roller body 1, a deep pattern 2 is arranged in the middle of the embossing roller body 1, and shallow patterns 3 are arranged on both sides of the embossing roller body.
[0015] In this embodiment, the embossing roller in the film production casting line is modified to highlight the pattern, so as to achieve uniform thickness of the EVA encapsulation film, and the patterns on both sides are shallower 3, and the middle is darker 2. After the film is embossed on the embossing roller body 1, the film density on both sides is greater than that in the middle part, and the edge density and gram weight are gradually reduced relative to the middle, thereby achieving overall cost reduction and efficiency improvement, and solving the problems of glue shortage, bubbles and the like caused by the low gram weight of the film edge during the EVA film encapsulation lamination process of photovoltaic modules, and facilitating the winding and transportation of the film.
[0016] In this embodiment, the embossing roller body 1 is made of steel.
[0017] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0018] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. At the same time, the meaning of "and / or" appearing in the full text is that it includes three schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0019] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.
[0020] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. An embossing roller for solving the problem of non-uniform grammage film, characterized in that: It comprises an embossing roller body (1), wherein a deep pattern (2) is provided in the middle of the embossing roller body (1), and shallow patterns (3) are provided on both sides of the embossing roller body (1).
2. The embossing roller for solving the problem of non-uniform grammage of the rubber film according to claim 1, characterized in that: The embossing roller body (1) is made of steel.