阅读说明：本技术 一种新型步进式紫外光固化微压印装置 (Novel marching type ultraviolet curing micro-imprinting device ) 是由 贺建芸 王佳佳 佟金戈 张景慧 申增强 马旭 陈慧 孔建 谢鹏程 杨卫民 丁玉梅 于 2019-10-15 设计创作，主要内容包括：本发明公开了一种新型步进式紫外光固化微压印装置及方法。该装置主要由支架、透明基材、放卷机构、张力控制系统、收卷机构、导向辊、压印装置、光照系统、涂布机构等组成。其内容包括:压印模具经过抗粘处理使其对光固化材料压印完成后具有不粘性,易于分离。光固化材料通过垂直于透明基材的涂布机构涂覆在透明基材上,调节刮刀与涂布辊表面之间的距离控制光固化材料的量,打开紫外光源,启动压印装置,光固化材料通过紫外光辐照固化并与透明基材连为一体,得到微结构,压印装置离开透明基材至下一次压印过程中,透明基材以均匀间歇的方式向前运动,基材上已完成的微结构向前运动恰好通过压印装置,基材上未被压印的光固化材料进行下一轮压印,依次循环,最终得到微结构。本发明设备简单,易于操作,有较高的产品良率并且能够进行大批量生产。(The invention discloses a novel stepping ultraviolet curing micro-imprinting device and a method. The device mainly comprises a support, a transparent substrate, an unreeling mechanism, a tension control system, a reeling mechanism, a guide roller, an imprinting device, a lighting system, a coating mechanism and the like. The content comprises that the stamping mould is subjected to anti-sticking treatment so that the stamping mould has non-stick property and is easy to separate after the photo-curing material is stamped. The method comprises the steps that a photocuring material is coated on a transparent base material through a coating mechanism perpendicular to the transparent base material, the distance between a scraper and the surface of a coating roller is adjusted to control the amount of the photocuring material, an ultraviolet light source is turned on, an imprinting device is started, the photocuring material is cured through ultraviolet light irradiation and is connected with the transparent base material into a whole to obtain a microstructure, the imprinting device leaves the transparent base material to the next imprinting process, the transparent base material moves forwards in an even and intermittent mode, the completed microstructure on the base material moves forwards just right through the imprinting device, and the photocuring material which is not imprinted on the base material is imprinted for the next imprinting, and the steps are sequentially circulated to finally obtain the. The invention has simple equipment, easy operation, higher product yield and capability of mass production.)

1. The utility model provides a novel marching type ultraviolet curing minute impression device which characterized in that: the device comprises a support, a transparent substrate, an unreeling mechanism, a tension control system, a reeling mechanism, a guide roller, an imprinting device, an illumination device and a coating mechanism; the photocuring material is evenly coated on the transparent substrate through a coating mechanism perpendicular to the transparent substrate, an ultraviolet light source is turned on, the photocuring material is cured and molded under ultraviolet light illumination through an imprinting mold perpendicular to the upper portion and is connected with the transparent substrate into a whole to obtain a microstructure, the transparent substrate moves forwards in an intermittent motion mode, is sequentially imprinted, and the imprinted microstructure film is wound through a winding mechanism and a guide roller.

2. The new step-by-step uv curable micro-imprinting apparatus according to claim 1, wherein: the transparent substrate should be moved forward exactly the length of the imprint by the imprint means each time the imprint means leaves the transparent substrate for a time interval.

3. The new step-by-step uv curable micro-imprinting apparatus according to claim 1, wherein: the ultraviolet light can be ultraviolet laser beams, high-pressure mercury lamps, metal halogen lamps, electrodeless lamps, UV plasmas or UVLED area light sources.

4. The new step-by-step uv curable micro-imprinting apparatus according to claim 1, wherein: the transparent base material can be PP, PET, PVC, PE, PC, PMMA and other materials with better light transmission.

5. The new step-by-step uv curable micro-imprinting apparatus according to claim 1, wherein: the coating mechanism comprises a coating roller and a scraper, wherein the photocuring material is coated on the transparent substrate through the coating roller, and the control of the photocuring material amount is realized through the distance between the scraper and the surface of the coating roller.

6. The new step-by-step uv curable micro-imprinting apparatus according to claim 1, wherein: the surface of the imprinting mould is subjected to anti-adhesion treatment, and a fluorinated coating is coated on the roller mould, so that the roller mould is easy to separate from a product after the imprinting and curing of the photocuring material are finished.

Technical Field

The invention belongs to the field of micro-nano processing and manufacturing, and particularly relates to an ultraviolet curing micro-imprinting device.

Background

Micro-nano manufacturing technology generally refers to the technology of micro-nano materials, manufacturing, designing, measuring, controlling and products. With the progress of technology, the rapid rise of nano science and nano technology, the micro-nano manufacturing technology is particularly important. At present, a micro-nano manufacturing technology has the advantages of small volume, light weight, high reliability and the like, is widely applied to the aspects of biomedicine, national defense science and technology, optical industry, fine chemical engineering and the like, and a micro-nano structure material has good stability, generally cannot be agglomerated, has a stable structure in the using process, and increasingly attracts attention of people due to the special appearance and performance of the material.

In the 21 st century, nano-fabrication will become one of the technological competitions in developed countries in the world. The development of the micro-nano manufacturing process and technology enables the manufactured objects to enter micro and nano aspects from the macro aspect, greatly improves the manufacturing precision and quality, plays a positive promoting role in promoting interdisciplinary, and enables the research of manufacturing science to be more complete. Under the promotion of scientific technology, the advanced manufacturing technology represented by micro-nano manufacturing is necessarily developed towards the direction of informatization, limitation and greening, and finally becomes the key of future manufacturing industry development.

The micro-nano imprinting technology is mainly divided into two categories of hot imprinting and ultraviolet imprinting, and the ultraviolet curing micro-imprinting technology is different from the traditional preparation method of hot imprinting forming. The ultraviolet curing micro-imprinting technology can be carried out at normal temperature and normal pressure, overcomes the defects of thermal deformation and warping caused by hot imprinting, and has the most important difference that the temperature of a die in the hot imprinting process is increased and then reduced, and the ultraviolet imprinting is in a constant temperature state in the whole process, so that the time required by the hot imprinting to reach a high-temperature and high-pressure environment is reduced, the production efficiency is improved, and the ultraviolet curing micro-imprinting technology has the advantages of low cost, simplicity and convenience in operation, quickness in molding, high efficiency, environmental friendliness and the like. The stepping ultraviolet curing device adopted by the invention moves forwards in a uniform and intermittent mode, and the obtained product is doubled and enlarged by utilizing the seamless splicing principle, so that the product can be continuously produced in large batch.

Disclosure of Invention

The invention aims to provide a novel stepping ultraviolet curing micro-imprinting device, which is used for imprinting at normal temperature and normal pressure by utilizing an ultraviolet curing micro-imprinting technology, has low cost and simple and convenient operation and overcomes the problem of high hot-imprinting forming conditions. The invention has the advantages of high forming efficiency, high replication precision, low energy consumption and the like.

In order to achieve the purpose of the invention, the invention adopts the technical scheme that: a novel stepping ultraviolet curing device. The device comprises a support, a transparent substrate, an unreeling mechanism, a tension control system, a reeling mechanism, a guide roller, an imprinting device, an illumination system and a coating mechanism. The surface of the imprinting mold is subjected to anti-adhesion treatment to enable the surface of the imprinting mold to be non-adhesive to a photocuring material, the photocuring material is easy to fall off from an imprinting device after being cured, the coating mechanism uniformly coats the photocuring material on a transparent base material, an ultraviolet light source is turned on, the imprinting device is started to obtain a microstructure film, the imprinting device leaves the transparent base material until the imprinting device carries out the next time, the transparent base material moves forwards in a uniform intermittent mode, when the imprinting device carries out imprinting again, the microstructure film just passes through the imprinting device, the next imprinting is carried out on the non-imprinted photocuring material, and finally the microstructure film is wound through a guide roller traction and winding mechanism.

According to the step-by-step ultraviolet curing micro-imprinting device provided by the invention, the transparent substrate moves forward by the length printed by the imprinting device at the time interval that the imprinting device leaves the transparent substrate.

According to the stepping ultraviolet curing micro-imprinting device provided by the invention, the unwinding mechanism is positioned above the side of the substrate, so that relatively labor is saved during unwinding, and the unwinding mechanism is protected.

According to the stepping ultraviolet curing micro-imprinting device provided by the invention, the winding mechanism is positioned below the side of the base material, and the winding mechanism is protected during winding.

According to the stepping ultraviolet curing micro-imprinting device provided by the invention, the ultraviolet light can be an ultraviolet laser beam, a high-pressure mercury lamp, a metal halogen lamp, an electrodeless lamp, a UV plasma or UVLED surface light source and the like.

According to the stepping ultraviolet curing micro-imprinting device provided by the invention, the transparent base material can be a material with better light transmittance, such as PP, PET, PVC, PE, PC, PMMA and the like.

According to the step-by-step ultraviolet curing micro-imprinting device provided by the invention, the coating mechanism comprises a coating roller and a scraper, the photocuring material is coated on the transparent substrate through the coating roller, and the control of the photocuring material amount is realized through the distance between the scraper of the scraper and the surface of the coating roller.

The novel stepping ultraviolet curing micro-imprinting device provided by the invention comprises the following process routes: (1) the surface of the stamping mould is subjected to anti-adhesion treatment to enable the surface to be non-adhesive to the photo-curing material, and the transparent base material is laid flat through 2 and 7 guide rollers. (2) The transparent substrate is conveyed forward uniformly and intermittently by the unwinding mechanism 9 and the guide roller 7. (3) The photo-curable material is uniformly coated on the transparent base material by the coating mechanism 8. (4) And turning on an ultraviolet light source, and starting the imprinting device to enable the photocuring material to be solidified and be integrated with the transparent base material. (5) And when the imprinting device imprints again, the imprinted microstructure film on the substrate moves forwards just through the imprinting device, and the next round of imprinting is carried out on the non-imprinted photocuring material on the substrate. (6) This process is repeated in sequence. (7) And rolling the microstructure film through a rolling mechanism 1 and a guide roller 2.

According to the novel stepping ultraviolet curing micro-imprinting device provided by the invention, the imprinting mode is intermittent imprinting, the transparent base material moves forwards in an even and intermittent mode in the process that the imprinting device leaves the transparent base material and the next imprinting is carried out, the finished micro-structure film just passes through the imprinting device, and the next imprinting is carried out on the non-imprinted light curing material, so that the micro-structure film is finally obtained.

According to the novel stepping ultraviolet curing micro-imprinting device provided by the invention, the surface of the imprinting mold is subjected to anti-adhesion treatment, so that the imprinting and curing of the photo-curing material are easily separated from a product.

Compared with the traditional hot stamping process, the method has the advantages of simple operation, low cost, no influence of thermal expansion on product precision and high forming precision, and can be carried out at normal temperature and normal pressure. The invention adopts an intermittent stamping mode to stamp, has simple structure and is easy for mass production.

Drawings

Fig. 1 is a simplified schematic diagram of a step-wise uv curing micro-imprinting apparatus according to the present invention.

In the figure: 1. a winding mechanism; 2. 7, a guide roller; 3. an illumination device; 4. an imprint device; 5. 6, a bracket; 8. a coating mechanism; 9. unwinding device.

Detailed Description

For the purposes of facilitating an understanding of the present invention, reference is made to the following drawings.

The invention provides a stepping ultraviolet curing micro-imprinting device, which comprises a winding mechanism 1; 2. 7, a guide roller; 3. an illumination system; 4. an imprint device; 5. 6, a bracket; 8. a coating mechanism; 9. unwinding device. The stamping mould is subjected to anti-sticking treatment to ensure that the stamping mould has non-stick property on the photocuring material, so that the stamping mould is easy to separate from the stamping mould after the photocuring material is stamped and cured. The transparent substrate is rolled and unreeled through the rolling mechanism 1 and the unreeling mechanism 9. Photocuring material evenly coats on transparent substrate through coating mechanism 8, and photocuring material moves forward with even intermittent type mode along with 2, 7 guide rolls, opens lighting system 3, starts impression device 4, makes photocuring material solidification and transparent substrate fuse into an organic whole, at last through winding mechanism 1 and guide roll 2 with the rolling of micro-structure membrane.