CN102873876A - Device for extrusion molding - Google Patents
Device for extrusion molding Download PDFInfo
- Publication number
- CN102873876A CN102873876A CN2012100254969A CN201210025496A CN102873876A CN 102873876 A CN102873876 A CN 102873876A CN 2012100254969 A CN2012100254969 A CN 2012100254969A CN 201210025496 A CN201210025496 A CN 201210025496A CN 102873876 A CN102873876 A CN 102873876A
- Authority
- CN
- China
- Prior art keywords
- light guide
- base plate
- guide base
- coaxial
- pattern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Planar Illumination Modules (AREA)
Abstract
An apparatus for molding an inline extrusion pattern is provided to enhance the efficiency of a process by remarkably shortening a processing time. An apparatus for molding an inline extrusion pattern comprises an extruder-T-Die-polishing roll(10), a pre-heater(20), an patterning apparatus(30), a cooler(40), and a cutter(50). The extruder extrudes an inserted resin material and manufactures a base light guide plate. The pre-heater heats the base light guide plate which is manufactured in the extruder. The patterning apparatus transfers a pattern to a heated base light guide plate. The cooler cools the light guide plate in which the pattern is transferred. The cutter cuts the light guide plate, which is discharged from the cooler, into a setting size.
Description
Technical field
The present invention is relevant for a kind of coaxial ejaculation formula (In-line) device for extrusion molding and pattern formation, particularly can form pattern and carry out main cooling via extruder in the light guide base plate made from resin material relevant for a kind of, and the coaxial ejaculation formula device that after design transfer, can cut LGP to a pre-set dimension, so LGP can be in single coaxial ejaculation formula system, make via extrusion molding, design transfer and cutting, reduce thus the processing procedure time of LGP.
Background technology
Generally speaking, be used widely such as the otpical leaf of LGP, blooming etc., with the light source that allows back light unit for example emission of light efficiently.
For example, LGP is liquid crystal display (Liquid Crystal Display, LCD) basic module, to guarantee that back light unit has uniform illumination and brightness, and when collecting the light of a direction, do not having in the situation of optical loss, the light that is transmitted into the front side by side light source can be scattered uniformly.Therefore, LGP is formed with micron-sized optical design.
Such LGP is normally made via extrusion molding or ejection formation.
In traditional extrusion molding processing procedure, resin material is extruded machine and extrudes to make and have certain regional light guide base plate, and it sequentially is cut into pre-set dimension, next grinds tangent plane forming minute surface, and the optical resin pattern is printed on the light emitting surface.Perhaps, this pattern can be by different moulds, form thereon in the mode of ejection formation.
Yet owing to after traditional extrusion molding processing procedure must make LGP via extruder, form pattern via individual other patterning device, therefore having increases extra production process and the problem of processing procedure time.
Moreover in traditional extrusion molding processing procedure, pattern is formed on the light guide base plate of sclerosis, and therefore fine pattern being transferred to can be more difficult on the light guide base plate, and causes the reduction of design transfer rate and limited the free degree in the design.
Summary of the invention
The present invention's imagination solves the above problems, and provide a kind of coaxial ejaculation formula device that forms for extrusion molding and pattern, it can made with resin material and form pattern via the main light guide base plate of cooling off of extruder (comprising T-shaped mould and polishing roll (felt wrapped roll)) execution, and after design transfer, can cut light guide base plate to pre-set dimension, so LGP can be in single coaxial ejaculation formula system, make via extrusion molding, design transfer and cutting, reduce thus the processing procedure time of LGP.
According to viewpoint of the present invention, the coaxial ejaculation formula device that is used for the formation of extrusion molding and pattern comprises: an extruder, and its extrusion resin material is to make light guide base plate; One preheating unit, it heats light guide base plate; One patterning unit, it shifts a pattern to the light guide base plate through heating; One cooling unit, its cooling have this pattern light guide base plate thereon; And a cutting unit, LGP to a pre-set dimension that its cutting is shifted out from cooling unit.
But default unit can comprise the heating controller of several heat blocks and each heat block of unit control.
Several heat blocks laterally (TD direction) are arranged alternately.Because heat block is alternately arranged, increase heating region and removed non-heating region, therefore can make LGP by uniformly preheating.
In order to improve the uniformity of heating by each regional heat block quantity of increase, several heat blocks can be arranged on a plurality of stages (stage).
It is 150～230 ℃ preset temperature that the heat block controller can be controlled heat block heating LGP to a scope.
The patterning unit can comprise upper cylinder and the bottom roll that is separated from each other, and comprising one of at least in upper cylinder and the bottom roll one directly is formed on the pattern on the cylinder surface or has the imprinter of a pattern to light guide base plate to be transferred.The patterning unit can be respectively on its right side and the left side to the load of light guide base plate pressurization up to 20 tons, and heating LGP to a scope is 100～200 ℃ preset temperature.
Cooling unit can comprise several coolers that are positioned at both sides up and down and are separated from each other, and cools off respectively upside and the downside of LGP.
In addition, several coolers can laterally be arranged alternately on a plurality of stages, adjusting the flexibility of the LGP that extrusion molding makes, and via individual other control air draft speed to improve the design transfer rate.
Here, each cooler can be adjusted air draft speed partially with the automatic damping system, and can cool off LGP with the cold air that produces from nitrogen cooling device or the air of room temperature.Cooling unit can comprise filter with the pollutant in air draft time shift deacration.
So, the coaxial ejaculation formula device that is used for extrusion molding and pattern formation according to embodiment can be via coaxial jetting process, carry out extrusion molding, design transfer and the cutting of light guide base plate, in the situation that significantly reduces the processing procedure time, improve processing procedure efficient thus.
In addition, in this device, pattern is transferred to light guide base plate, and it carries out main cooling via extruder (comprising T-shaped mould and polishing roll (felt wrapped roll)), and comes preheating by preheating unit, improves thus the rate of transform, productivity ratio and product reliability.Moreover, allow in the situation of not cutting light guide base plate according to the system of embodiment, shift continuously pattern to light guide base plate, improve significantly thus the elasticity of optical design design.
Moreover this device allows pattern to shift continuously, can make thus the manufacturing of large-scale LGP more convenient.
Description of drawings
Fig. 1 is the block diagram of an embodiment of the coaxial ejaculation formula device for extrusion molding of the present invention;
Fig. 2 a～2c is the schematic diagram of a preheating unit of the device of Fig. 1; And
Fig. 3 a～3c is the schematic diagram of a cooling unit of the device of Fig. 1.
The specific embodiment
Describe embodiments of the invention in detail now with reference to relevant drawings.
Fig. 1 is the block diagram of an embodiment of coaxial ejaculation formula (In-line) system for extrusion molding of the present invention.
As shown in Figure 1, according to being used for the coaxial ejaculation formula device that extrusion molding and pattern form and can comprising an extruder 10 (comprising T-shaped mould and polishing roll) of this embodiment, its extrusion resin material is to make light guide base plate; One preheating unit 20, the light guide base plate of main cooling is shifted out and is subject in its heating from extruder 10; One patterning unit 30, it shifts pattern to the surface of the light guide base plate through heating; One cooling unit 40, its cooling have pattern light guide base plate thereon; And a cutting unit 50, the LGP that its cutting is shifted out from cooling unit 40 is to pre-set dimension.
System according to this embodiment can comprise, and a guide roller for example is to transmit light guide base plate to cutter unit 50 from extruder 10.
Because extruder 10 generally is usually used in making LGP via extrusion molding, so the assembly of its thin section and operate in will skip over herein and do not carry.
Although this embodiment is with LGP as an illustration, what should be appreciated that is, the present invention not only can be applicable to also can be applied to any product on the LGP, such as being taken as otpical leaf that optical module uses, blooming etc.Here, noun " pattern " any fine structure of general reference, comprise ripple, point, prism (Prisms) or lenticule (Micro Lenses) etc., it can form various shape on the surface of thin slice.
Fig. 2 a～2c is the preheating unit of the device of Fig. 1, and wherein Fig. 2 a is the plan view of preheating unit, and Fig. 2 b and 2c then are the side views of this preheating unit.
Shown in Fig. 2 a～2c, preheating unit 20 light guide base plate that preheating is extruded before design transfer is to increase the design transfer rate.
Especially, via patterning unit 30 conversion patterns on the light guide base plate during, light guide base plate can be subject to the unexpected extruding of warm-up mill, the surface temperature of light guide base plate then can be unexpected rising, cause light guide base plate to become softening state by the state of sclerosis, like this then light guide base plate just is easy to be subjected to the deformation of bending, wave or other expansion.Preheating unit 20 is used for the so deformation of compensation light guide base plate.
In addition, when the light guide base plate of sclerosis was subject to design transfer, the design transfer rate can change because of the thickness of light guide base plate or crooked being adversely affected.Therefore, preheating unit 20 is used for that also light guide base plate is become and has the elasticity of height, to improve the design transfer rate.
Preheating unit 20 can comprise the heating controller of several heat blocks 210 and those heat blocks 210 of unit control.
Preheating unit 20 can comprise several heat blocks 210 to heat equably light guide base plate, and wherein, those heat blocks 210 are (perpendicular to the moving direction of LGP) alternative arrangement laterally, shown in Fig. 2 a～2c.
In Fig. 2 a～2c, the device that illustrates comprises the heat block 210 of 15 row that arrange with machine direction (MD direction), and wherein every row have the heat block 210 that 6 horizontal (TD direction) arranges.Yet what should be appreciated that here is that the quantity of heat block 210 and arrangement mode can change on demand.
When several heat blocks 210 uniformly-spaced arranged equably, 210 of heat blocks had then formed non-heating region.Therefore, in order to reach the purpose of homogeneous heating light guide base plate, those heat blocks 210 better for laterally being arranged alternately.
In addition, shown in Fig. 2 a～2c, preheating unit 20 is made of multistage preheating zone institute, to increase the quantity of each regional heat block 210, makes thus the All Ranges of light guide base plate can more uniform heating.
Moreover, owing to may dissolve when being heated to 230 ℃ or higher temperature with the made light guide base plate of plastic material, therefore the heating-up temperature of preheating unit 20 is set to and is lower than 230 ℃, and preferably 100 to 230 ℃ (best is 150 to 230 ℃).
One of at least can comprise pattern or the figuratum imprinter of tool that is formed on the cylinder surface in upper cylinder and the bottom roll.
In addition, each cylinder can by in cylinder, circulate the hot fluid that adds heat, and can be linked to a device of keeping constant pressure, so the cylinder light guide base plate of namely can pressurizeing with fixing pressure.
Fig. 3 a～3c is the schematic diagram according to a cooling unit of the device of an exemplary embodiments of the present invention.Wherein, Fig. 3 a is the plan view of cooling unit for this reason, and Fig. 3 b and 3c then are the side views of this cooling unit.
The adjustment that cooling unit 40 is used for via the cooling rate of horizontal (TD direction) with pattern LGP thereon and upper and lower surface improves the design transfer rate, and adjusts the flexibility of LGP.
After the process of LGP in design transfer, be exposed to room temperature lower time without cutting, LGP is easy to be subjected to deformation, for example when softening LGP sclerosis, produces and laterally shrinks or reverse bending.
Therefore, when through the LGP of heating after pattern is transferred to LGP, during by certain cooled region, but air draft on LGP to adjust the up and down pressure of side of LGP, to provide thus the LGP with flexibility shape of wanting to reach.
Here, when cooling unit 40 was discharged the air that is polluted, the surface of LGP may be therefore contaminated.Therefore, cooling unit 40 more can comprise the pollutant of filter 430 in air draft time shift deacration.
Although cold air exhaust blower (cooling air blower) 410 discharges the amount of same air to each cooling block 420 via connecting piece, but each cooling block 420 still can comprise air exhaust controller (not being plotted among the figure), it controls air draft speed with the size of adjustment towards the nozzle of the opening of LGP air draft.
Therefore, the operator of this device can consider that the position of LGP design transfer produces local bending or deformation, to adjust partly the air draft speed of each cooling block 420.
Moreover several cooling blocks 420 can be arranged on the next stage dividually, and shown in Fig. 3 a～3c, the cooling degree of LGP can laterally be separated in according to several the cooled region of next stage on each, are adjusted by the air draft speed of those cooling blocks 420 of control.
That is to say, cooling unit 40 can consider that the position of LGP design transfer produces local bending or the situation of deformation, be operated to carry out the Local cooling of LGP upside or downside, so cold air only can be discharged into the position that LGP is subjected to local buckling or deformation.
By behind the cooling unit 40, LGP can cut to the size that institute wants to reach via cutter unit 50, provides thus to have transfer pattern LGP thereon.
So, carry out extrusion molding and design transfer according to the device permission of embodiment via coaxial jetting process, reduce significantly the processing procedure time thus.Specifically, this device allows pattern to shift continuously, can make thus the manufacturing of large-scale LGP more convenient.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. one kind is used for the coaxial ejaculation formula device that extrusion molding and pattern form, and it is characterized in that this coaxial ejaculation formula device comprises:
One extruder is extruded a resin material to make a light guide base plate;
One preheating unit heats this light guide base plate and comprises several heat blocks and the heat block controller of those heat blocks of control;
One patterning unit shifts this light guide base plate after a pattern extremely heats;
One cooling unit, cooling has this pattern this light guide base plate thereon; And
One cutting unit, this light guide base plate to one pre-set dimension that cutting is shifted out from this cooling unit.
2. coaxial ejaculation formula device as claimed in claim 1 is characterized in that these several heat blocks laterally are staggered.
3. coaxial ejaculation formula device as claimed in claim 1 is characterized in that these several heat blocks were arranged on a plurality of stages, is improved the uniformity of heating by the quantity of those heat blocks that increase each zone.
4. coaxial ejaculation formula device as claimed in claim 1 is characterized in that, this heat block controller is controlled those heat blocks, and to heat this light guide base plate to one scope be 150～230 ℃ preset temperature.
5. coaxial ejaculation formula device as claimed in claim 1, it is characterized in that, this patterning unit comprise be separated from each other one on cylinder and a bottom roll, comprising one of at least on this in cylinder and this bottom roll one directly is formed on the pattern on the cylinder surface or has the imprinter of a pattern to this light guide base plate to be transferred.
6. coaxial ejaculation formula device as claimed in claim 5 is characterized in that, this patterning unit respectively on its right side and the left side to the load of this light guide base plate pressurization up to 20 tons, and to heat this light guide base plate to one scope be 100～200 ℃ preset temperature.
7. coaxial ejaculation formula device as claimed in claim 1 is characterized in that, this cooling unit comprises several coolers that are positioned at both sides up and down and are separated from each other, and cools off respectively upside and the downside of this light guide base plate.
8. coaxial ejaculation formula device as claimed in claim 7 is characterized in that, when this light guide base plate of cooling, those coolers use and result from the cold air of a nitrogen cooling device or the air of room temperature.
9. coaxial ejaculation formula device as claimed in claim 7 is characterized in that those coolers laterally were arranged alternately on a plurality of stages, and uses an automatic damping system to adjust partially an air draft speed.
10. coaxial ejaculation formula device as claimed in claim 7 is characterized in that, this cooling unit more comprises a filter with the pollutant in air draft time shift deacration.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110068885A KR101102131B1 (en) | 2011-07-12 | 2011-07-12 | Device for extrusion molding |
| KR10-2011-0068885 | 2011-07-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102873876A true CN102873876A (en) | 2013-01-16 |
| CN102873876B CN102873876B (en) | 2016-02-24 |
Family
ID=45613675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210025496.9A Active CN102873876B (en) | 2011-07-12 | 2012-01-16 | For the coaxial injection formula device that extrusion molding and pattern are formed |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101102131B1 (en) |
| CN (1) | CN102873876B (en) |
| TW (1) | TWI531462B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624992A (en) * | 2013-11-22 | 2014-03-12 | 北京化工大学 | Pressing device and method of polymer microstructure |
| CN103869407A (en) * | 2014-03-07 | 2014-06-18 | 合肥铨励光电科技有限公司 | Cold/hot rolling thin film type highlighting light guide plate and roll-to-roll preparation method thereof |
| CN104149323A (en) * | 2014-07-22 | 2014-11-19 | 合肥京东方显示光源有限公司 | Hot rolling device, light guide plate, preparation method of light guide plate and backlight module |
| CN107526130A (en) * | 2017-08-18 | 2017-12-29 | 苏州天禄光科技股份有限公司 | The method and apparatus for manufacturing the site of light guide plate |
| CN108327236A (en) * | 2018-04-25 | 2018-07-27 | 黄志力 | A kind of rolling device for processing the transparent carpet cushions of PC |
| CN110722783A (en) * | 2019-10-07 | 2020-01-24 | 江苏科尔玛智能装备制造有限公司 | PVC floor is to version knurling device |
| CN110774732A (en) * | 2019-11-04 | 2020-02-11 | 牛瑞肖 | Printing device for light guide plate |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2748656B1 (en) * | 2011-08-23 | 2016-04-27 | Evonik Röhm GmbH | Continuous method for manufacturing light guide plates |
| JP2014112487A (en) * | 2012-12-05 | 2014-06-19 | Sumitomo Chemical Co Ltd | Light guide plate |
| KR101582373B1 (en) * | 2013-03-08 | 2016-01-04 | 제일모직주식회사 | Method for preparing light guide plate, light guide plate prepared from the same and liquid crystal display comprising the same |
| KR101948133B1 (en) * | 2016-07-06 | 2019-02-14 | 주식회사 레이젠 | Device Manufacturing Pattern For LGP |
| CN109249573A (en) * | 2017-07-14 | 2019-01-22 | 南京贝迪电子有限公司 | A kind of production equipment of novel no warpage light guiding film |
| CN111559073A (en) * | 2020-04-15 | 2020-08-21 | 南京贝迪电子有限公司 | Light guide film product processing equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624992A (en) * | 2013-11-22 | 2014-03-12 | 北京化工大学 | Pressing device and method of polymer microstructure |
| CN103869407A (en) * | 2014-03-07 | 2014-06-18 | 合肥铨励光电科技有限公司 | Cold/hot rolling thin film type highlighting light guide plate and roll-to-roll preparation method thereof |
| CN104149323A (en) * | 2014-07-22 | 2014-11-19 | 合肥京东方显示光源有限公司 | Hot rolling device, light guide plate, preparation method of light guide plate and backlight module |
| CN104149323B (en) * | 2014-07-22 | 2016-08-10 | 合肥京东方显示光源有限公司 | A kind of hot-rolling pressure device, light guide plate and preparation method thereof, backlight module |
| CN107526130A (en) * | 2017-08-18 | 2017-12-29 | 苏州天禄光科技股份有限公司 | The method and apparatus for manufacturing the site of light guide plate |
| CN108327236A (en) * | 2018-04-25 | 2018-07-27 | 黄志力 | A kind of rolling device for processing the transparent carpet cushions of PC |
| CN110722783A (en) * | 2019-10-07 | 2020-01-24 | 江苏科尔玛智能装备制造有限公司 | PVC floor is to version knurling device |
| CN110774732A (en) * | 2019-11-04 | 2020-02-11 | 牛瑞肖 | Printing device for light guide plate |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201302437A (en) | 2013-01-16 |
| KR101102131B1 (en) | 2012-01-02 |
| TWI531462B (en) | 2016-05-01 |
| CN102873876B (en) | 2016-02-24 |
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