Film-forming apparatus and film-forming method
Inactive Publication Date: 2013-08-29
3M INNOVATIVE PROPERTIES CO
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Benefits of technology
The present invention aims to provide a film-forming apparatus and method for laminating a film onto articles using a vacuum forming apparatus. The apparatus has an auxiliary film pressing tool that helps prevent film lifting, resulting in a higher yield and even film lamination. It can follow the shape of the article, regardless of its size, and can even be used on multiple articles simultaneously, increasing productivity.
Problems solved by technology
However, in cases where the surface of the article to be laminated has protrusions and recesses having large differences in elevation, the film cannot completely follow the shape of the surface, meaning that lifting of the film can occur in some parts.
However, when increasing the number of articles in the chamber, it is essential to make the distance between the articles as small as possible, but as this distance becomes smaller, it is common for lifting of the film to occur due to differences in elevation between articles, meaning that it can be difficult to maintain satisfactory shape followability of the film at the ends of the articles.
Method used
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examples
[0089]A working example of the present invention will now be explained.
example
[0090]A double-sided vacuum forming machine (NGF-0709, manufactured by Fu-se Vacuum Forming) was used as the film-forming apparatus. Two door parts, which were the articles, were placed on pedestals on the supporting table in the second chamber in a rotationally symmetrical manner so that the long axes passing through the centers of gravity of the articles were parallel. The shape of the door parts was almost the same as that used in the simulation shown in FIG. 4A, and the size of each part was such that the maximum width was approximately 70 mm, the maximum length was approximately 205 mm and the height was approximately 33 mm, meaning that the maximum height when placed on the pedestal was 70 mm. The minimum distance between the two door parts was 25 mm.
[0091]An iron wire used in wire hangers and having a cross-sectional diameter of 2 mm was prepared as the auxiliary film pressing tool. This was disposed on a frame, which measured 260 mm×260 mm, had an opening and was attached to...
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Abstract
A film-forming apparatus (100) and method capable of film lamination with superior evenness and good followability regardless of the size, shape and number of articles being laminated. The film-forming apparatus (100) provided has a first chamber (10, 11) that is provided with a heating means (50, 51) and that is capable of maintaining a vacuum or a pressurized state, a second chamber (20, 21) that is disposed so as to be able to be joined to, and separated from, the first chamber (10, 11), that is provided with a movable supporting table (60, 61) on which an article (300, 310, 320) is supported and that is capable of maintaining a vacuum or a pressurized state, a frame-like film holding member (30, 31) that is disposed between the first chamber (10, 11) and the second chamber (20, 21) and that holds a film (200, 210), and an auxiliary film pressing tool (40, 41, 42) having a film pressing part (42a) that inhibits lifting of the film (200, 210) when the film is laminated on a surface of the article (300, 310, 320).
Description
FIELD OF INVENTION [0001]The present invention relates to a film-forming apparatus that laminates a film on a surface of an article such as a three-dimensional component or substrate and also relates to a method for forming a film by using this film-forming apparatus.BACKGROUND [0002]Attempts have been made to decorate surfaces of three-dimensional components used in exterior and interior components of automobiles and motorcycles, electronic components, furniture, and so on or the surface of articles such as three-dimensional substrates having a complex shape, such as shapes that include protrusions and recesses on the surface, by laminating with a colored (e.g., paint replacement) or designed plastic film instead of using conventional decorations (e.g., liquid paint).[0003]As methods for laminating a film on the surface of this type of article, film lamination forming methods using vacuum forming apparatuses are known. Japanese Unexamined Patent Application Publication No. 2002-671...
Claims
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Login to View More IPC IPC(8): B29C65/02
CPCB29C51/10B29C65/02B29C2791/006B29C51/16B29C63/04B32B37/1009
InventorTAKENOUCHI, TAKASHISERIZAWA, HIDEKI
Owner3M INNOVATIVE PROPERTIES CO