TWI584938B - Roller imprinting system - Google Patents

Description

Roller imprinting system

The present invention relates to a roller embossing system, and more particularly to a roller embossing system having multiple steps of solidifying a substrate.

With the rapid development of technology, electronic products are constantly innovating and improving with the needs of people. Among them, flexible electronic products have driven a new batch of industrial development with the advantage of being flexible. In order to achieve this goal, the application of flexible substrates such as plastics, thin metal sheets, thin glass, cloth, and paper is a research field in this field. Flexible electronics are used in portable electronics and emerging products due to their light weight, thin thickness, impact resistance, flexibility, easy portability, surface use, and freedom of shape change. The field is particularly dominant.

In order to manufacture the flexible substrate described above, common techniques include a roll-to-roll process, which is a rapid prototyping process that is widely used in the manufacturing of industrial components, and common roll-to-roll processes. The process involves passing a flexible sheet between two forming rolls and utilizing the extrusion between the two forming rolls to imprint the microstructure pattern on the forming roll onto the surface of the flexible sheet. However, for a rigid planar substrate (such as glass, sapphire or tantalum), which is limited by the non-curlability of the substrate, it is necessary to use a process other than the roll-to-roll process, and a roll-to-plane process. It is one of them.

Therefore, the object of the present invention is to provide a roller embossing system, which is provided with a stamper with a pattern on the convex surface, a roller and an automatic embossing platform, so that a fast, large area can be achieved on the rigid planar substrate. The goal of automated imprinting of nanostructures or patterns is quite conducive to mass production.

The invention provides a roller embossing system, which comprises: a carrier for carrying a substrate and driving the substrate to move; the embossing module comprises a first illumination lamp, at least one transmission wheel, a rolling wheel and a stamper. The driving wheel is configured to drive the die to move the stamper in the moving direction to the substrate carried on the stage and driven by the stage to imprint the substrate, and The first illumination lamp performs the first curing of the embossed portion of the substrate; and the second illumination lamp is used for the second curing of the first cured and embossed substrate driven by the stage .

The roller imprinting system as described above further includes a control module, the control module includes: a lifting unit for controlling the height of the driving wheel and the rolling wheel relative to the loading stage; and a rotation speed unit for controlling a speed of the transmission wheel and the rolling wheel; and a transmission unit for controlling a moving speed of the substrate carrying the substrate.

In the roller embossing system as described above, the stamper has a plurality of through holes at opposite long sides.

In the roller embossing system as described above, the two-end tread of the transmission wheel has gear teeth, and the gear teeth cause the transmission wheel to move the die by inserting the through hole, and the transmission wheel is axially The inner side of the tooth of the two-end wheel The distance between the two is greater than the width of the substrate.

In the roller embossing system as described above, the two-end tread of the rolling wheel has gear teeth for engaging the through holes, and the distance between the two teeth of the rolling wheel is greater than the substrate The width.

a roller embossing system as described above, the stamper having a pattern surface and a bearing surface disposed on opposite sides, the pattern surface having a concave-convex structure between the through holes at opposite long sides of the stamper The rolling wheel is abutted against the bearing surface to imprint the relief structure to the substrate.

The roller embossing system as described above, the rolling wheel is a transparent roller, and the first illuminating lamp is placed in the rolling wheel.

The roller imprinting system as described above is made of silicone, quartz, glass or acrylic.

As described above, the roller imprinting system is made of a flexible material.

As described above for the roller imprinting system, the flexible material is silicone.

In the roller imprinting system as described above, the light emitted by the first illumination lamp and the second illumination lamp is ultraviolet light.

In summary, the roller imprinting system of the present invention controls the loading stage and the imprinting module through the control module, and the rolling unit drives the pressing mold to move and presses the substrate, and Achieve fast, large-area, automated imprinted nanostructures or patterns to facilitate mass production, and through the secondary curing mechanism to improve the curing effect of the substrate.

1‧‧‧ stage

100‧‧‧Roller Imprinting System

11, 214‧‧‧ bearing surface

2‧‧‧imprinting module

21‧‧‧Molding

211‧‧‧2

212‧‧‧through hole

2131‧‧‧ concave structure

213‧‧‧ patterned surface

22‧‧‧Roller unit

221‧‧‧Drive wheel

2211, 2221‧‧‧°

2212, 2222‧‧‧ teeth

222‧‧‧Rolling wheel

2224‧‧‧ hood

23‧‧‧First illumination

3‧‧‧Control Module

31‧‧‧ Lifting unit

32‧‧‧Tachometer unit

33‧‧‧Transmission unit

4‧‧‧Second light

5‧‧‧Substrate

51‧‧‧embossed surface

52‧‧‧ resin layer

C‧‧‧ directions

W1, W2‧‧‧ distance

W3‧‧‧Width

Figure 1 is a schematic view of a roller stamping system of the present invention; 2A to 2B are a plan view and a side view, respectively, of the stamper structure of the present invention; FIG. 3 is a cross-sectional view of the drive wheel of the present invention; FIG. 4 is a cross-sectional view of the roll wheel of the present invention; The figure is a schematic diagram of the relationship between the control system of the present invention and the stage and the roller unit.

The embodiments of the present invention are described by way of specific examples, and those skilled in the art can readily appreciate the advantages and effects of the present invention from the disclosure herein.

It is to be understood that the structure, the proportions, the size, and the like of the present invention are intended to be used in conjunction with the disclosure of the specification, and are not intended to limit the invention. The conditions are limited, so it is not technically meaningful. Any modification of the structure, change of the proportional relationship or adjustment of the size should remain in this book without affecting the effects and the objectives that can be achieved by the present invention. The technical content disclosed in the invention can be covered. Therefore, the scope of protection of the present invention should be as set forth in the scope of the patent application.

Please refer to Fig. 1, which is a schematic view of the roller imprinting system of the present invention. The roller imprinting system 100 includes a stage 1, an imprinting module 2, a second illumination lamp 4, and a substrate 5. The detailed operation mode will be further described in the following paragraph.

The loading platform 1 includes a bearing surface 11 for carrying the substrate 5, and the substrate 5 is driven to move in a direction C by a belt, a crawler, a roller, a shelf or a mesh belt, wherein the embossed surface of the substrate 5 51 is formed The resin layer 52 is, for example, a UV resin.

The embossing module 2 includes a stamper 21, a roller unit 22 and a first illuminating lamp 23, and the roller unit 22 is configured to drive the stamper 21 to move and bear on the stage 1 and the stage 1 The driven substrate 5 is embossed. The roller unit 22 includes at least one of the driving wheel 221 and the rolling wheel 222. In the embodiment, the driving wheel 221 is exemplified by four, but is not limited thereto.

Please refer to FIG. 2A and FIG. 2B simultaneously, which are respectively a top view and a side view of the stamper 21 of the present invention. In detail, the stamper 21 has a plurality of through holes 212 at the two long sides 211 and The pattern surface 213 and the bearing surface 214 on the opposite side have a concave-convex structure 2131 for patterning the substrate 5 between the through holes 212, wherein the stamper 21 is flexible by, for example, silicone Made of a material, the stamper 21 has a bendable property.

Please refer to FIG. 3 and FIG. 4 simultaneously, which are respectively a cross-sectional view of the transmission wheel 221 and the rolling wheel 222 of the present invention. The two-end axial surface 2211 of the transmission wheel 221 has a plurality of gear teeth 2212. The pressure roller 222 is disposed between the two transmission wheels 221 and is a transparent roller. The wheel surface 2221 of the two ends of the axial direction has a plurality of gear teeth 2222. In this embodiment, the first illumination lamp 23 and a hood are provided. The 2224 is placed in the rolling wheel 222, but is not limited thereto. In detail, the light emitted by the first illumination lamp 23 is ultraviolet light, and the hood 2224 is configured to shield a portion of the ultraviolet light emitted by the first illumination lamp 23 to form a specific exposure pattern, wherein the transparent pattern is formed. The material of the drum is silicone, quartz, glass or acrylic. The gear teeth 2212 of the transmission wheel 221 and the gear teeth 2222 of the rolling wheel 222 are embedded in the through holes 212. The driving mode 21 is moved during the rotation to make the transmission efficiency more reliable. The distance W1 between the inner sides of the teeth 2212 of the two ends of the transmission wheel 221 and the inner side of the teeth 2222 of the two ends of the rolling wheel 222 The distance W2 between the two needs to be greater than the width W3 of the substrate 5 to avoid the interference phenomenon during the transportation and the embossing, and the reliability of the product is improved. In addition, in the embodiment, the transmission wheel 21 is four. , but not limited to this.

Referring to FIG. 5 at the same time, the roller imprinting system 100 further includes a control module 3 for receiving a control command transmitted by the user and controlling the relative speed of the relative transmission of the stage 1 and the relative speed of the imprint module 2. And the relative height, the control module 3 has a lifting unit 31, a rotating speed unit 32 and a transmission unit 33; the lifting unit 31 and the rotating speed unit 32 are connected to the roller unit 22, and the lifting unit 31 is used to control the roller The rotation speed unit 32 is used to control the rotation speed of the transmission wheel 221 and the rolling wheel 222 of the roller unit 22 with respect to the height of the stage 1. The transmission unit 33 is used to control the loading of the stage 1. The movement speed of the substrate 5, whereby the user can input a control command to control the process according to the requirements of the process.

Further, when the user inputs a control command to the control module 3, the rotational speed unit 32 controls the rotational speed at which the roller unit 22 starts to rotate, so that the roller unit 22 drives the die 21 to move, and the lifting unit 31 is driven by the lifting unit 31. Controlling the roller unit 22 to feed in the direction of the stage 1, and stopping the feeding to the stage 1 when the transmission wheel 221 reaches the relative height requirement relative to the stage 1, at this time, the lifting The unit 31 continues to control the rolling wheel 222 to continue feeding in the direction of the stage 1, thereby abutting and applying a downward pressure to the bearing surface 214 of the stamper 21, so that the pattern surface The concave-convex structure 2131 of 213 imprints the substrate 5, and firstly cures the embossed portion of the substrate 5 through the ultraviolet light emitted by the first illumination lamp 23 inside the transparent roller 222 (preliminary After curing, the substrate 5 is moved in the direction C through the stage 1 , and the first curing and imprinted substrate 5 driven by the stage 1 is driven by the second illumination lamp 4 . A second curing (complete curing) is performed to thereby enhance the curing effect on the substrate 5.

In summary, the roller imprinting system of the present invention controls the loading stage and the imprinting module through the control module, and drives the pressing mold by the roller unit to perform the imprinting process on the substrate, thereby achieving rapid The effect of large-area, automated imprinted nanostructures or patterns to facilitate mass production, and through the mechanism of secondary curing to improve the curing effect of the substrate.

1‧‧‧ stage

100‧‧‧Roller Imprinting System

11‧‧‧ bearing surface

2‧‧‧imprinting module

21‧‧‧Molding

221‧‧‧Drive wheel

222‧‧‧Rolling wheel

22‧‧‧Roller unit

23‧‧‧First illumination

4‧‧‧Second light

5‧‧‧Substrate

51‧‧‧embossed surface

52‧‧‧ resin layer

C‧‧‧ directions

Claims (7)

A roller imprinting system includes: a loading platform for carrying a substrate and driving the substrate to move; and an imprinting module comprising a first illumination lamp, at least one transmission wheel, a rolling wheel and a compression mold, the transmission wheel For driving the stamper, the rolling wheel is configured to press the moving stamper against the substrate carried on the stage and driven by the stage to imprint the substrate, and is disposed on the substrate The first illumination lamp in the rolling wheel performs the first curing of the embossed portion of the substrate; and the second illumination lamp is used for curing the substrate for the second time to be the first curing of the substrate And the embossed part. The roller imprinting system of claim 1, further comprising a control module, the control module comprising: a lifting unit for controlling the height of the driving wheel and the rolling wheel relative to the loading stage; a unit for controlling the rotation speed of the transmission wheel and the rolling wheel; and a transmission unit for controlling a moving speed of the substrate carrying the substrate. The roller embossing system of claim 1, wherein the rolling wheel is a transparent roller, and the first illuminating lamp is disposed in the rolling wheel. The roller imprinting system of claim 3, wherein the material of the roller is silicone, quartz, glass or acrylic. The roller imprinting system according to claim 1, wherein the material of the stamper is a flexible material. The roller imprinting system of claim 5, wherein the flexible material is silicone. The roller imprinting system of claim 1, wherein the light emitted by the first illumination lamp and the second illumination lamp is ultraviolet light.