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Three-dimensional side cutting method and die for stereoscopic high stretch formed film

A technology of stretch forming and mould, which is applied in the field of film cutting method and mould, can solve the problem that the film cannot be cut into two-dimensional planes, etc., and achieve the effect of expanding the application field of decoration technology, improving product efficiency, and reducing defective products

Active Publication Date: 2013-07-17
QUNDA PLASTIC ELECTRONICS SHENZHEN
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Problems solved by technology

[0004] One of the technical problems to be solved by the present invention is that the above-mentioned traditional film cutting method in the prior art can only be applied to cutting three-dimensional low-stretch films, and cannot cut flat two-dimensional films with a film thickness of no more than 0.2 mm. Defects of film, providing a three-dimensional side cutting method for three-dimensional high-stretch forming film
[0005] The second technical problem to be solved by the present invention is that the above-mentioned traditional film cutting method in the prior art can only be applied to cutting three-dimensional low-stretch films, and cannot cut flat two-dimensional films with a film thickness of no more than 0.2 mm. Defects of the film, providing a three-dimensional side-cut mold for high-stretch film forming

Method used

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  • Three-dimensional side cutting method and die for stereoscopic high stretch formed film
  • Three-dimensional side cutting method and die for stereoscopic high stretch formed film
  • Three-dimensional side cutting method and die for stereoscopic high stretch formed film

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Embodiment Construction

[0045] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0046] Such as Figure 1-Figure 8 As shown, the number labels in the figure represent:

[0047] 1-Thermocompression forming mold, 11-the first panel, 12-the fixed plate of the upper mold, 13-the first upper template, 14-the first punch, 15-pressing plate, 16-the first lower template, 17-the first bomb Block, 18-the first base plate, 19-the first positioning column;

[0048] 2-ring cutting die, 21-second panel, 22-second upper template, 23-second punch, 24-second bullet, 25-second lower template, 26-second bottom plate, 27-second positioning post;

[0049] 3-side cutting die, 31-the third panel, 32-the third upper template, 33-briquetting block, 34-the third punch, 351a-the first oil cylinder, 351b-the first row of kn...

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Abstract

The invention discloses a three-dimensional side cutting method and a die for a stereoscopic high stretch formed film. The method is realized by the steps of: S1: conducting hot-pressing stretching on a sheet in a hot-pressing forming mould to form a semi-finished sheet with an arc; S2: placing the semi-finished sheet in a circular cutting mould to conduct circular cutting on the rim material, thus forming a shaped sheet; S3: carrying out side accurate cutting on the rim material of the shaped sheet in a side cutting mould to obtain a cut formed sheet. The die includes: the hot-pressing forming mould, which performs hot-pressing stretching on the sheet with a printed pattern and a punched positioning hole so as to form the semi-finished sheet with an arc; the circular cutting mould, which cuts the redundant rims materials around the semi-finished sheet; and the side cutting mould, which is controlled by a side cutting equipment control system and conducts side cutting on the remaining sheet of the shaped sheet. The three-dimensional side cutting method and the die provided in the invention can broaden the film thickness selection region during cutting and reduce the defective rate of products.

Description

technical field [0001] The invention relates to a film cutting method and a mold, more specifically, to a three-dimensional side cutting method and a mold for a three-dimensional high stretch forming film. Background technique [0002] The three-dimensional side-cutting method of the three-dimensional high-stretch forming film is mainly used in the field of digital electronic products that pursue a three-dimensional appearance decoration effect, and can be applied to the casing of digital electronic products that use in-mold decoration technology. [0003] At present, the traditional method of producing the above shell is the film cutting method, which mainly adopts the vertical punching method, but limited by the film cutting method itself, this method can only be applied to cutting three-dimensional low-stretch films, and It is impossible to cut flat two-dimensional films with a film thickness of no more than 0.2mm, which can no longer meet the needs of the booming digital...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C51/04B29C51/32B26F1/38B26F1/44
Inventor 黎烘华刘永福尹高喜汪智勇
Owner QUNDA PLASTIC ELECTRONICS SHENZHEN
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