Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Roller die core and manufacturing method thereof

A production method and roller technology, which can be applied to other household appliances, household appliances, optical components, etc., can solve the problems of lowering the 100-grid test level, affecting the yield rate, reducing the adhesion, etc., to increase the anti-oxidation ability and prolong the service life. , Overcome the effect of being easily oxidized

Inactive Publication Date: 2014-12-03
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the production process of optical films, such as prism sheets, is made by using ultra-precision engraved copper roller dies to emboss UV resin on PET (Polyethylene terephthalate, polyterephthalate plastic) carriers and then cured by light, which affects the yield rate. There are three main reasons: The first is the dust particles that may fall on the surface of the copper roller during production. Because the hardness of the hard copper plated is only about 220 Hv (Vickers hardness), when the roller continues to run, the dust particles It will be driven between the PET carrier and the wheel surface, and finally the surface of the copper roller will be scratched, resulting in poor optical quality of the finished optical film; the second is that the resin is easy to form residual glue on the copper roller during demoulding, although it can be added The release agent is used in the UV glue formula to overcome it, but this anti-sticking effect also reduces the adhesion of the cured resin colloid to the PET carrier, and finally reduces the 100-grid test level; thirdly, because the material of the roller is copper, exposure Copper oxide is easy to form in the atmospheric environment. When the area of ​​the oxide layer increases, it will cause microstructure damage. Finally, the roller must be re-engraved when it is scrapped.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Roller die core and manufacturing method thereof
  • Roller die core and manufacturing method thereof
  • Roller die core and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0014] see Figure 1-2 , Figure 1-2 A roller mold core 100 is provided according to the first embodiment of the present invention. The roller mold core 100 is used to form an optical film, and the roller mold core 100 includes a copper roller 10, a microstructure 12 formed on the outer peripheral surface of the copper roller 10, a central axis 14 positioned at opposite ends of the copper roller 10, and a central axis 14 formed on the copper roller 10. A diamond-like carbon (Diamond Like Carbon; DLC) film layer 20 on the surface of the microstructure 12 , the copper roller 10 can rotate around the central axis 14 . Wherein, the microstructure 12 is a V-groove, and the depth of the V-groove is 50um (micrometer). The thickness of the diamond-like carbon film layer 20 is 200 nm (nanometer).

[0015] The second embodiment of the present invention also provide...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
hardnessaaaaaaaaaa
friction coefficientaaaaaaaaaa
Login to View More

Abstract

The invention relates to a roller die core. The roller die core is used for molding an optical film. The roller die core comprises a roller, microstructures formed on the outer circumferential surface of the roller and a diamond-like carbon film formed on the surfaces of the microstructures. The invention also relates to a manufacturing method of the roller die core.

Description

technical field [0001] The invention relates to a roller mold core and a manufacturing method of the roller mold core. Background technique [0002] At present, the production process of optical films, such as prism sheets, is made by using ultra-precision engraved copper roller dies to emboss UV resin on PET (Polyethylene terephthalate, polyterephthalate plastic) carriers and curing them with light, which affects the yield rate. There are three main reasons: The first is the dust particles that may fall on the surface of the copper roller during production. Because the hardness of the hard copper plated is only about 220 Hv (Vickers hardness), when the roller continues to run, the dust particles It will be driven between the PET carrier and the wheel surface, and finally the surface of the copper roller will be scratched, resulting in poor optical quality of the finished optical film; the second is that the resin is easy to form residual glue on the copper roller during dem...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/38B29L11/00
Inventor 许嘉麟
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products