WO2020177783A2 - 一种导光膜网点加工设备 - Google Patents

一种导光膜网点加工设备 Download PDF

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Publication number
WO2020177783A2
WO2020177783A2 PCT/CN2020/095420 CN2020095420W WO2020177783A2 WO 2020177783 A2 WO2020177783 A2 WO 2020177783A2 CN 2020095420 W CN2020095420 W CN 2020095420W WO 2020177783 A2 WO2020177783 A2 WO 2020177783A2
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WO
WIPO (PCT)
Prior art keywords
light guide
guide film
mold
dot
film
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PCT/CN2020/095420
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English (en)
French (fr)
Other versions
WO2020177783A3 (zh
Inventor
刘勇
李永刚
Original Assignee
南京贝迪电子有限公司
Priority date (The priority date 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 date listed.)
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Application filed by 南京贝迪电子有限公司 filed Critical 南京贝迪电子有限公司
Priority to DE212020000087.5U priority Critical patent/DE212020000087U1/de
Priority to JP2020600121U priority patent/JP3231393U/ja
Publication of WO2020177783A2 publication Critical patent/WO2020177783A2/zh
Publication of WO2020177783A3 publication Critical patent/WO2020177783A3/zh

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    • 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
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/52—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00663—Production of light guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0075—Light guides, optical cables
    • 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

Definitions

  • This application relates to the field of light guide film processing, in particular to a light guide film dot processing equipment.
  • Light guide film dot processing is generally processed on the light guide plate by injection molding or printing, but it is difficult to achieve the thin film design of the light guide plate with traditional injection molding or printing.
  • the method of preparing light guide film dot processing is gradually becoming integrated Design, one-step molding, simplifying the preparation process, and saving cost, so the method for processing the dots of the light guide film in one-piece molding is currently the preferred method for processing the dots of the light guide film.
  • the patent CN201010224529.3 discloses a light guide film production device, which is provided with a thermal embossing device, including a pressing roller and a plate roller.
  • the pressing roller can be a steel roller or a plastic roller
  • the plate roller is a mirror roller.
  • There is a light guide film mold core the surface of the light guide film mold core has a microstructure, and the pressing roller cooperates with the plate roller to emboss the microstructure of the light guide film mold core onto the surface to be processed of the substrate layer to form Light guide dots. That is, the press roller and the plate roller are matched to realize the processing of the dots on the surface of the light guide film to be processed.
  • this method can achieve the one-step forming of the dots on the film surface, there will be a step speed difference due to the film running and the rotation of the roller. Therefore, the film surface may be damaged when printing dots.
  • the purpose of this application is to provide a light guide film dot processing equipment, which realizes the simultaneous processing of dots on both sides of the light guide film without causing damage to the light guide film surface.
  • a light guide film dot processing equipment including a discharging device for placing unformed dot light guide film rolls, and used for winding the light guide film rolls after dot processing
  • a material device a dot processing device located between the discharging device and the receiving device, and a linkage controller electrically connected to the dot processing device
  • the dot processing device includes a first pressing device symmetrically arranged in the thickness direction of the light guide film And the second pressing device, the first mold base and the second mold base, the first hot pressing mold and the second hot pressing mold;
  • the first mold base is installed on the first pressing device near the light guide film side, the The first hot pressing mold is arranged on the side of the first mold base close to the light guide film, and the plane of the first hot pressing mold is parallel to the surface of the light guide film;
  • the second mold base is installed on the second pressing device near the light guide film side, The second hot pressing mold is arranged on the side of the second mold base close to the light guide film
  • the first mold base is evenly provided with a number of grooves located in the same straight line near the light guide film side, and the first hot pressing mold is partially buried in the grooves along its thickness direction;
  • the first mold base and The second mold base has the same structure;
  • the heating unit is set as an electric heating unit, and the heat transfer plane of the electric heating unit is parallel to the surface of the light guide film;
  • the cooling unit is arranged between the electric heating unit and the groove and is arranged along the width of the light guide film The direction runs through the cooling channel of the first mold seat; one end of the cooling channel is a cooling liquid inlet, and the other end is a cooling liquid outlet.
  • the electric heating unit realizes the processing of the surface of the light guide film, which is convenient for dot transfer;
  • the cooling unit is conducive to the curing of the surface of the light guide film after the dot transfer.
  • first hot pressing mold is detachably connected to the inner wall of the groove of the first mold base
  • second hot pressing mold is detachably connected to the inner wall of the groove of the second mold base.
  • the cooling channel is arranged as a through hole with a square cross section along its length direction, and the projection of the through hole in the first mold seat along the installation surface of the electric heating unit at least covers the electric heating unit.
  • the through-hole structure facilitates uniform heat transfer, and on the other hand, it can achieve rapid cooling.
  • both ends of the through hole are closed, and a liquid inlet is opened on the closed surface of the cooling liquid inlet end of the through hole, and a liquid outlet is opened on the closed surface of the cooling liquid outlet end of the through hole.
  • the setting of the liquid inlet and the liquid outlet facilitates the use of pipes to transport the cooling liquid into the cooling channel.
  • the width of the light guide film is defined as D
  • the width of the first mold seat near the light guide film in the width direction of the light guide film is D1
  • the width of the second mold seat near the light guide film in the width direction of the light guide film is D2, then D1>D, D2>D.
  • the size selection of the first mold base and the second mold base can complete the dot molding along the width direction of the light guide film at one time, which improves the processing efficiency.
  • the light guide film dot processing equipment also includes a first guide wheel group and a second guide wheel group each provided with two guide wheels, as well as a reclaiming device and a finished product collection device;
  • the first guide wheel group is provided Between the feeding device and the dot processing device, the two guide wheels of the first guide wheel set are symmetrically arranged on both sides of the thickness direction of the light guide film, and the two guide wheels respectively abut on the surface of the light guide film;
  • the second guide wheel set is arranged between the dot processing device and the material receiving device.
  • the two guide wheels of the second guide wheel set are symmetrically arranged on both sides of the thickness direction of the light guide film, and the two guide wheels respectively abut on the light guide
  • the surface of the film; the reclaiming device is used to pick up the light guide film rolls that the rewinding device has rewinded, and the finished product collection device is used to collect the light guide film rolls picked up by the reclaiming device.
  • the setting of the guide wheel group is beneficial to keep the guide die of the processing part of the dot processing device flat.
  • the reclaiming device is a reclaiming manipulator.
  • the first hot pressing mold is a mirror mold, a dot mold or a V structure mold
  • the second hot pressing mold is a mirror mold, a dot mold or a V structure mold, which facilitates the selection of a dot structure.
  • the light guide film dot processing equipment disclosed in the present application includes a discharging device, a receiving device, a dot processing device, and a linkage controller;
  • the dot processing device includes two pressurizing devices and two mold holders respectively symmetrically arranged in the thickness direction of the light guide film And two hot stamping dies, in which a heating unit and a cooling unit are arranged inside the mold seat;
  • the mold seat is installed on the side of the pressing device near the light guide film, and the hot stamping mold is detachably set on the side of the mold seat near the light guide film; linkage control
  • the two pressure devices are controlled to drive the two pressure devices to move relative to each other along the thickness direction of the light guide film, and when the pressure devices move relative to each other, the hot stamping mold will resist the surface of the light guide film;
  • the linkage controller also programs the internal heating of the mold base The start and stop of the unit and the cooling unit realize the formation of dots on the surface of the light guide film by the hot press mold.
  • the application has a simple structure, and uses two pressurizing devices, two mold holders and two hot press molds to work together to achieve the effect of achieving different dots on both sides of the light guide film, so that the optical performance of the light guide film product is greatly improved, and the product quality is high ; And, the hot pressing model number can be adjusted, so it can be used for the processing of light guide films with different dot structures and sizes, and the light guide film products are more widely used in various occasions.
  • FIG. 1 is a specific structure diagram of the application
  • FIG. 2 is a cross-sectional view of the first mold base along the width direction of the light guide film.
  • the processing of the dots on the surface of the light guide film is usually only single-sided processing, and the processing mainly adopts a roller structure that can rotate around a roller to achieve transfer.
  • the roller and the light guide film may exist The step speed is poor, so the roller will damage the surface of the light guide film when transferring the dots.
  • This application aims to propose a light guide film dot processing equipment to realize the simultaneous processing of the dots on both sides of the light guide film and avoid misleading The surface of the light film causes damage, which improves the optical performance and quality of the light guide film.
  • a light guide film dot processing equipment includes a discharge device for placing unformed dot light guide film rolls 1, a rewinding device for rewinding light guide film rolls after dot processing 2.
  • the dot processing device 3 between the unwinding device 1 and the receiving device 2 and the linkage controller 4 electrically connected to the dot processing device 3; the dot processing device 3 includes first pressurizers respectively symmetrically arranged in the thickness direction of the light guide film 9
  • the first mold base 3.3 is installed near the first pressing device 3.1
  • the first hot press mold 3.5 is set on the first mold base 3.3 near the light guide film 9, and the plane of the first hot press mold 3.5 is parallel to the surface of the light guide film 9; the second mold base 3.4 is mounted on the
  • the second pressing device 3.2 is close to the light guide film 9, the second hot pressing mold
  • the linkage controller 4 is used to control and drive the first pressing device 3.1 and the second pressing device 3.2 to move relative to each other along the thickness direction of the light guide film 9, and when the first pressing device 3.1 and the second pressing device 3.2 are opposite to each other
  • the linkage controller 4 at least makes the first hot pressing mold 3.5 and the second hot pressing mold 3.6 abut the surface of the light guide film 9; that is, when the first pressing device 3.1 and the second pressing device 3.2 move relatively, wherein
  • the first pressing device 3.1 drives the first mold base 3.3 and the first hot pressing mold 3.5 on it to extrude one side surface of the light guide film 9, and the second pressing device 3.2 drives the second mold base 3.4 and the second mold base on it.
  • the hot press mold 3.6 extrudes the other side surface of the light guide film 9, and the dot structure on the first hot press mold 3.5 and the second hot press mold 3.6 is transferred on the surface of the light guide film 9.
  • the linkage controller 4 is also used to program control the start and stop of the internal heating unit 3.8 and cooling unit 3.9 of the first mold base 3.3 and the second mold base 3.4.
  • the heating unit 3.8 helps the light guide film 9
  • the surface is softened, which facilitates the formation of dots on the surface of the light guide film by the first hot press mold 3.5 and the second hot press mold 3.6
  • the cooling unit 3.9 helps the surface of the light guide film 9 to be cured after the late transfer and improves the processing efficiency of the dots.
  • the first pressure device 3.1 and the second pressure device 3.2 are provided with a distance sensor electrically connected to the linkage controller on the side close to the light guide film to stop the first pressure device 3.1 and the second pressure device 3.1.
  • the relative movement of the pressing device 3.2 achieves the effect of controlling the dot transfer without damaging the light guide film 9.
  • the first mold base 3.3 and the second mold base 3.4 have the same structure; the first mold base 3.3 is evenly provided with a number of grooves 3.7 located on the same straight line near the light guide film 9, and the first hot pressing mold 3.5 The thickness direction is partially buried in the groove 3.7; the heating unit 3.8 is set as an electric heating unit, and the heat transfer plane of the electric heating unit is parallel to the surface of the light guide film 9, such as an electric heating sheet, an electric heating structure composed of electric heating wires.
  • the cooling unit 3.9 is arranged between the electric heating unit and the groove 3.7, and is arranged as a cooling channel passing through the first mold base 3.3 along the width direction of the light guide film 9; one end of the cooling channel is a cooling liquid inlet and the other end is a cooling liquid outlet.
  • the electric heating unit heats the surface of the light guide film 9, which is conducive to softening the surface of the light guide film 9 and facilitates the dot transfer; the cooling unit 3.9 is conducive to the solidification of the light guide film surface after the dot transfer, shortening the dot forming time and improving the dot transfer Printing efficiency.
  • the cooling unit 3.9 can be water-cooled or oil-cooled, and there is no restriction here.
  • the cooling channel is set as a through hole with a square cross-section along its length.
  • the projection of the through hole in the first mold seat along the installation surface of the electric heating unit at least covers the electric heating unit; on the one hand, the through hole structure is beneficial to
  • the heat transfer is uniform, that is, the heat is evenly distributed by heating the air in the through hole by the electric heating unit, and then the uniformly heated first heat press mold 3.5 realizes uniform heating of the surface of the light guide film 9 of the dot to be processed; on the other hand, when the through hole
  • the cooling liquid can fully contact the first mold base 3.3 to quickly exchange heat, and then the first hot stamping mold 3.5 with uniform heat exchange realizes rapid cooling on the surface of the light guide film 9 to realize the surface of the light guide film 9
  • the network structure is stable.
  • both ends of the through hole are closed, a liquid inlet 3.10 is opened on the closed surface of the coolant inlet end of the through hole, and a liquid outlet 3.11 is opened on the closed face of the coolant outlet end of the through hole; Port 3.10 and liquid outlet 3.11 are respectively piped or directly connected to liquid supply and liquid collection equipment, forming a cycle of cooling liquid transported into the cooling channel and back and forth for use.
  • two pipelines are directly arranged in the first mold base 3.3 and the second mold base 3.4, one is used to pass high temperature liquid, and the other is used to pass low temperature liquid.
  • the linkage controller 4 program controls the high temperature liquid and the low temperature liquid.
  • the conveying time can also realize the functions of the heating unit 3.8 and the cooling unit 3.9 in this embodiment.
  • the present application sets both the first mold base 3.3 and the second mold base 3.4 as a large-size structure, that is, the width of the light guide film 9 is defined as D, and the first mold base 3.3 is close to the light guide
  • the width of the film 9 side along the width direction of the light guide film 9 is D1
  • the width of the second mold base 3.4 along the width direction of the light guide film 9 near the light guide film 9 is D2, then D1>D, D2>D
  • the purpose is When the first pressure device 3.1 and the second pressure device 3.2 are driven and drive the first mold holder 3.3 and the second mold holder 3.4 to transfer the dots of the light guide film 9, the dots along the width direction of the light guide film 9 can be completed at one time Forming to improve processing efficiency.
  • the first hot pressing mold can be adjusted and installed according to the actual width of the light guide film 9 to be processed.
  • the quantity of 3.5 is always maintained.
  • This dot processing equipment can complete dot forming along the width of the light guide film 9 at one time, which is suitable for dot processing of light guide films 9 of various sizes.
  • the light guide film dot processing equipment further includes a first guide wheel group 5 and a second guide wheel group 6 each provided with two guide wheels, and The reclaiming device 7 and the finished product collection device 8; the first guide wheel group 5 is arranged between the unwinding device 1 and the dot processing device 3.
  • the two guide wheels of the first guide wheel group 5 are symmetrically arranged in the thickness direction of the light guide film 9
  • the two guide wheels respectively abut the surface of the light guide film 9
  • the second guide wheel group 6 is arranged between the dot processing device 3 and the material receiving device, and the two guide wheels of the second guide wheel group 6 It is symmetrically arranged on both sides of the thickness direction of the light guide film 9, and two guide wheels are respectively abutted on the surface of the light guide film 9;
  • the reclaiming device 7 is used to pick up the light guide film roll completed by the rewinding device 2, generally A picking manipulator is selected, and the finished product collection device 8 is used to collect the light guide film rolls picked up by the picking device 7.
  • the first guide wheel group 5 and the second guide wheel group 6 are arranged to ensure that the surface of the guide die located at the part to be processed by the dot processing device 3 is kept flat, and no wrinkles are generated during dot transfer, which reduces the quality of the light guide film.
  • the first hot pressing mold 3.5 is detachably connected to the inner wall of the groove 3.7 of the first mold base 3.3
  • the second hot pressing mold 3.6 is detachably connected to the second mold base 3.4 groove 3.7 inner wall
  • detachable connection allows the equipment to replace hot stamping molds with different network point structures according to production needs, saving costs, improving efficiency and reducing development cycles
  • the first hot stamping mold 3.5 is a mirror mold, Dot mold or V structure mold
  • the second hot pressing mold 3.6 is a mirror mold, dot mold or V structure mold.
  • the structure of the first hot stamping die 3.5 and the second hot stamping die 3.6 is far more than the above-listed structures, and the network point structure can be independently designed according to the production requirements.
  • the light guide film dot processing equipment of the present application has a reasonable design and simple structure. It selects any two of a variety of molds and is hot-pressed to achieve different dot effects on both sides of the light guide film product. The optical performance is greatly improved. High quality, can be widely used in various occasions.

Abstract

本申请提供的导光膜网点加工设备，涉及导光膜加工领域，包括放料装置、收料装置、网点加工装置和联动控制器；网点加工装置包括分别对称设置在导光膜厚度方向的两加压装置、内部设置有加热单元和冷却单元的两模具座，以及两热压模；模具座安装于加压装置靠近导光膜侧，热压模可拆卸设置在模具座靠近导光膜侧；联动控制器控制驱动两加压装置沿导光膜厚度方向相对或相背运动，且当加压装置相对运动时，会使得热压模抵触于导光膜表面；联动控制器还程序控制模具座内部加热单元和冷却单元的启停，实现热压模在导光膜表面成型网点。本申请采用在导光膜两面成型不同网点的加工工艺，提高导光膜产品的光学性能、产品质量和种类多样性。

Description

一种导光膜网点加工设备 技术领域
本申请涉及导光膜加工领域，具体涉及一种导光膜网点加工设备。
背景技术
导光膜网点加工一般采用注塑成型或印刷等方式加工在导光板上，但传统的注塑成型或印刷等很难实现导光板的薄膜化设计，目前制备导光膜网点加工的方式逐渐趋向一体化设计，一步成型，简化制备流程，节约成本，因此一体成型导光膜网点加工方法是目前导光膜网点加工的优选方式。
例如专利CN201010224529.3公开了一种导光膜制作装置，该装置设置有热压印装置，包括压辊和版辊，压辊可以为纲辊或者塑料辊，版辊为镜面辊，在版辊上设有导光膜模仁，该导光膜模仁表面具有微结构，该压辊配合该版辊将该导光膜模仁的微结构压印至该基材层的待加工面上形成导光网点。即采用压辊和版辊配合的方式实现在导光膜的待加工面上加工网点，虽然该方法可以实现膜表面网点的一步成型，但是由于膜运行配合辊转动的过程会存在步速差，因此压印网点时可能会对膜表面造成损伤。
发明内容
本申请目的在于提供一种导光膜网点加工设备，实现对导光膜两侧表面网点的同步加工，并且不会对导光膜表面造成损伤。
为达成上述目的，本申请提出如下技术方案：一种导光膜网点加工设备，包括用于放置未成型网点导光膜卷的放料装置、用于收卷网点加工后导光膜卷的收料装置、位于放料装置和收料装置之间的网点加工装置和电连接于网点加工装置的联动控制器；所述网点加工装置包括分别对称设置在导光膜厚度方向 的第一加压装置和第二加压装置、第一模具座和第二模具座、第一热压模和第二热压模；所述第一模具座安装于第一加压装置靠近导光膜侧，所述第一热压模设置在第一模具座靠近导光膜侧，且第一热压模平面平行于导光膜表面；所述第二模具座安装于第二加压装置靠近导光膜侧，所述第二热压模设置在第二模具座靠近导光膜侧，且第二热压模平面平行于导光膜表面；所述第一模具座和第二模具座内部均设置有加热单元和冷却单元，并且加热单元和冷却单元在第一模具座和第二模具座内部间隔安装；所述联动控制器用于控制驱动第一加压装置和第二加压装置沿导光膜厚度方向相对或相背运动，并且当第一加压装置和第二加压装置相对运动时，联动控制器至少使得第一热压模和第二热压模抵触于导光膜表面；所述联动控制器还用于程序控制第一模具座和第二模具座内部加热单元和冷却单元的启停，使得第一热压模和第二热压模在导光膜表面成型网点。
进一步的，所述第一模具座靠近导光膜侧均匀设置有位于同一直线的若干凹槽，所述第一热压模沿其厚度方向部分埋设于凹槽内；所述第一模具座和第二模具座结构相同；所述加热单元设置为电热单元，电热单元的传热平面平行于导光膜表面；所述冷却单元设置在电热单元和凹槽之间，设置为沿导光膜宽度方向贯穿第一模具座的冷却通道；所述冷却通道一端为冷却液入口，另一端为冷却液出口。电热单元实现对导光膜表面的加工，便于网点转印；冷却单元有利于网点转印后，导光膜表面固化。
进一步的，所述第一热压模可拆卸连接于第一模具座的凹槽内壁，所述第二热压模可拆卸连接于第二模具座的凹槽内壁。可拆卸式连接使得设备可以根据生产需要更换具有不同网点结构的热压模，节约成本，提高效率和减少开发周期等。
进一步的，所述冷却通道设置为沿其长度方向截面为方形的通孔，所述通孔在第一模具座内沿电热单元安装面上的投影至少覆盖电热单元。通孔结构一方面有利于热量传递均匀，另一方面能实现快速降温。
进一步的，所述通孔两端封闭，且通孔的冷却液入口端封闭面上开设有一进液口，通孔的冷却液出口端封闭面上开设有一出液口。设置进液口和出液口有利于采用管道将冷却液输送进冷却通道中。
进一步的，定义导光膜的宽度为D，第一模具座靠近导光膜侧沿导光膜宽度方向的宽度为D1，第二模具座靠近导光膜侧沿导光膜宽度方向的宽度为D2，则D1＞D，D2＞D。第一模具座和第二模具座的尺寸选择能一次性完成沿导光膜宽度方向的网点成型，提高加工效率。
进一步的，所述导光膜网点加工设备还包括各设置有两个导向轮的第一导向轮组和第二导向轮组，以及取料装置和成品收集装置；所述第一导向轮组设置在放料装置和网点加工装置之间，第一导向轮组的两个导向轮对称设置在导光膜厚度方向的两侧，并且两个导向轮分别抵接于导光膜的表面；所述第二导向轮组设置在网点加工装置和收料装置之间，第二导向轮组的两个导向轮对称设置在导光膜厚度方向的两侧，并且两个导向轮分别抵接于导光膜的表面；所述取料装置用于拾取收料装置收卷完成的导光膜卷，所述成品收集装置用于收集取料装置拾取的导光膜卷。设置导向轮组有利于保持网点加工装置加工部位的导向模平整。
进一步的，所述取料装置为取料机械手。
进一步的，所述第一热压模为镜面模、网点模或V结构模，第二热压模为镜面模、网点模或V结构模，便于网点结构的选择。
由以上技术方案可知，本申请的技术方案提供的导光膜网点加工设备，获得了如下有益效果：
本申请公开的导光膜网点加工设备，包括放料装置、收料装置、网点加工装置和联动控制器；网点加工装置包括分别对称设置在导光膜厚度方向的两加压装置、两模具座和两热压模，其中，模具座内部间隔设置有加热单元和冷却单元；模具座安装于加压装置靠近导光膜侧，热压模可拆卸设置在模具座靠近导光膜侧；联动控制器控制驱动两加压装置沿导光膜厚度方向相对或相背运动， 且当加压装置相对运动时，会使得热压模抵触于导光膜表面；联动控制器还程序控制模具座内部加热单元和冷却单元的启停，实现热压模在导光膜表面成型网点。
本申请结构简单，采用两加压装置、两模具座和两热压模配合工作的方式，实现在导光膜两面达到不同网点的效果，使得导光膜产品的光学性能大幅提升，产品质量高；并且，热压模型号可调节，因此可用于不同网点结构和尺寸的导光膜的加工，导光膜产品在各个场合的应用更广泛。
应当理解，前述构思以及在下面更加详细地描述的额外构思的所有组合只要在这样的构思不相互矛盾的情况下都可以被视为本公开的申请主题的一部分。
结合附图从下面的描述中可以更加全面地理解本申请教导的前述和其他方面、实施例和特征。本申请的其他附加方面例如示例性实施方式的特征和/或有益效果将在下面的描述中显见，或通过根据本申请教导的具体实施方式的实践中得知。
附图说明
附图不意在按比例绘制。在附图中，在各个图中示出的每个相同或近似相同的组成部分可以用相同的标号表示。为了清晰起见，在每个图中，并非每个组成部分均被标记。现在，将通过例子并参考附图来描述本申请的各个方面的实施例，其中：
图1为本申请的具体结构图；
图2为第一模具座沿导光膜宽度方向的截面图。
图中各标记的具体意义为：
1-放料装置，2-收料装置，3-网点加工装置，3.1-第一加压装置，3.2-第二加压装置，3.3-第一模具座，3.4-第二模具座，3.5-第一热压模，3.6-第二热压模，3.7-凹槽，3.8-加热单元，3.9-冷却单元，3.10-进液口，3.11-出液口，4-联动控制 器，5-第一导向轮组，6-第一导向轮组，7-取料装置，8-成品收集装置，9-导光膜。
具体实施方式
为了更了解本申请的技术内容，特举具体实施例并配合所附图式说明如下。
在本公开中参照附图来描述本申请的各方面，附图中示出了许多说明的实施例。本公开的实施例不定义包括本申请的所有方面。应当理解，上面介绍的多种构思和实施例，以及下面更加详细地描述的那些构思和实施方式可以以很多方式中任意一种来实施，这是因为本申请所公开的构思和实施例并不限于任何实施方式。另外，本申请公开的一些方面可以单独使用，或者与本申请公开的其他方面的任何适当组合来使用。
基于现有技术中，导光膜表面网点加工通常只能单面加工，并且加工主要采用可绕辊轴转动的辊结构实现转印，在导光膜运行时，辊和导光膜可能会存在步速差，因此辊转印网点时会对导光膜表面造成损伤的技术问题，本申请旨在提出一种导光膜网点加工设备，实现导光膜两面网点的同步加工，且避免对导光膜表面造成损伤，提高导光膜光学性能和质量。
下面结合附图所示的实施例，对本申请的导光膜网点加工设备作进一步具体介绍。
结合图1所示，一种导光膜网点加工设备，包括用于放置未成型网点导光膜卷的放料装置1、用于收卷网点加工后导光膜卷的收料装置2、位于放料装置1和收料装置2之间的网点加工装置3和电连接于网点加工装置3的联动控制器4；网点加工装置3包括分别对称设置在导光膜9厚度方向的第一加压装置3.1和第二加压装置3.2、第一模具座3.3和第二模具座3.4、第一热压模3.5和第二热压模3.6；第一模具座3.3安装于第一加压装置3.1靠近导光膜9侧，第一热压模3.5设置在第一模具座3.3靠近导光膜9侧，且第一热压模3.5平面平行于导光膜9表面；第二模具座3.4安装于第二加压装置3.2靠近导光膜9侧，第二 热压模3.6设置在第二模具座3.4靠近导光膜9侧，且第二热压模3.6平面平行于导光膜9表面；第一模具座3.3和第二模具座3.4内部均设置有加热单元3.8和冷却单元3.9，并且加热单元3.8和冷却单元3.9在第一模具座3.3和第二模具座3.4内部间隔安装。
联动控制器4用于控制驱动第一加压装置3.1和第二加压装置3.2沿导光膜9厚度方向相对或相背运动，并且当第一加压装置3.1和第二加压装置3.2相对运动时，联动控制器4至少使得第一热压模3.5和第二热压模3.6抵触于导光膜9表面；即，当第一加压装置3.1和第二加压装置3.2相对运动，其中第一加压装置3.1带动第一模具座3.3及其上的第一热压模3.5挤压导光膜9一侧表面，第二加压装置3.2带动第二模具座3.4及其上的第二热压模3.6挤压导光膜9另一侧表面，第一热压模3.5和第二热压模3.6上的网点结构即转印在导光膜9表面上。为确保网点转印的效率，联动控制器4还用于程序控制第一模具座3.3和第二模具座3.4内部加热单元3.8和冷却单元3.9的启停，加热单元3.8有助于导光膜9表面软化，便于第一热压模3.5和第二热压模3.6在导光膜表面成型网点，冷却单元3.9有助于晚点转印后导光膜9表面固化，提高网点加工效率。
一些实施例中，通过在第一加压装置3.1和第二加压装置3.2靠近导光膜侧设置电连接于联动控制器的距离传感器的方式，来阻停第一加压装置3.1和第二加压装置3.2的相对运动，达到控制网点转印而不损害导光膜9的效果。
结合图2所示，第一模具座3.3和第二模具座3.4结构相同；第一模具座3.3靠近导光膜9侧均匀设置有位于同一直线的若干凹槽3.7，第一热压模3.5沿其厚度方向部分埋设于凹槽3.7内；加热单元3.8设置为电热单元，电热单元的传热平面平行于导光膜9表面，如电热片、由电热丝编制构成的电热结构等。冷却单元3.9设置在电热单元和凹槽3.7之间，设置为沿导光膜9宽度方向贯穿第一模具座3.3的冷却通道；冷却通道一端为冷却液入口，另一端为冷却液出口。电热单元实现对导光膜9表面的加热，有利于导光膜9表面软化，便于网点转印；冷却单元3.9有利于网点转印后，导光膜表面固化，缩短网点成型时间，提 高网点转印效率。冷却单元3.9可以选用水冷、油冷，此处不做限制。
进一步结合图2所示，冷却通道设置为沿其长度方向截面为方形的通孔，通孔在第一模具座内沿电热单元安装面上的投影至少覆盖电热单元；通孔结构一方面有利于热量传递均匀，即通过电热单元加热通孔内空气的方式使得热量均匀分布，进而受热均匀的第一热压模3.5实现对待加工网点的导光膜9表面均匀加热；另一方面，当通孔内充分分布冷却液时，冷却液能充分接触第一模具座3.3快速发生热交换，进而换热均匀的第一热压模3.5又在导光膜9表面实现快速降温,实现导光膜9表面网点结构稳定。
某些实施例中，将通孔的两端封闭，通孔的冷却液入口端封闭面上开设有一进液口3.10，通孔的冷却液出口端封闭面上开设有一出液口3.11；进液口3.10和出液口3.11分别采用管道或直接连接供液、集液设备，构成冷却液输送进冷却通道及回流往复利用的循环。部分实施例中，直接在第一模具座3.3和第二模具座3.4内设置两路管道，一路用于通高温液体，另一路用于通低温液体采用联动控制器4程序控制高温液体和低温液体的输送时间，也能实现本实施例中加热单元3.8和冷却单元3.9的作用。
为提高导光膜9网点加工效率，本申请将第一模具座3.3和第二模具座3.4均设置为大尺寸结构，即定义导光膜9的宽度为D，第一模具座3.3靠近导光膜9侧沿导光膜9宽度方向的宽度为D1，第二模具座3.4靠近导光膜9侧沿导光膜9宽度方向的宽度为D2，则D1＞D，D2＞D，其目的在于当第一加压装置3.1和第二加压装置3.2被驱动并带动第一模具座3.3和第二模具座3.4向导光膜9转印网点时可以一次性完成沿导光膜9宽度方向的网点成型，提高加工效率。另外，由于第一模具座3.3靠近导光膜9侧均匀设置有位于同一直线的若干凹槽3.7，因此在实际生产时可以根据实际待加工导光膜9的宽度，调整安装第一热压模3.5的数量，始终保持本网点加工设备可以一次性完成沿导光膜9宽度方向的网点成型，适用于各尺寸导光膜9的网点加工。
附图所示的实施例中，为确保导光膜9网点加工质量，导光膜网点加工设 备还包括各设置有两个导向轮的第一导向轮组5和第二导向轮组6，以及取料装置7和成品收集装置8；第一导向轮组5设置在放料装置1和网点加工装置3之间，第一导向轮组5的两个导向轮对称设置在导光膜9厚度方向的两侧，并且两个导向轮分别抵接于导光膜9的表面；第二导向轮组6设置在网点加工装置3和收料装置之间，第二导向轮组6的两个导向轮对称设置在导光膜9厚度方向的两侧，并且两个导向轮分别抵接于导光膜9的表面；取料装置7用于拾取收料装置2收卷完成的导光膜卷，一般选用取料机械手，成品收集装置8用于收集取料装置7拾取的导光膜卷。实施例通过设置第一导向轮组5和第二导向轮组6确保位于网点加工装置3待加工部位的导向模表面保持平整，在网点转印时不产生褶皱，降低导光膜质量。
一些实施例中，为进一步提高本申请设备的应用范围，第一热压模3.5可拆卸连接于第一模具座3.3的凹槽3.7内壁，第二热压模3.6可拆卸连接于第二模具座3.4的凹槽3.7内壁；可拆卸式连接使得设备可以根据生产需要更换具有不同网点结构的热压模，节约成本，提高效率和减少开发周期等，例如，第一热压模3.5为镜面模、网点模或V结构模，第二热压模3.6为镜面模、网点模或V结构模。当然第一热压模3.5和第二热压模3.6的结构远不止上述列出的结构，还可以根据生产要求自主设计网点结构。
本申请的导光膜网点加工设备，设计合理，结构简单，选用多种模具中的任意两种，热压成形，让导光膜产品两面达到不同的网点效果，光学性能大幅提升，其生产产品质量高，能广泛应用于各个场合。
虽然本申请已以较佳实施例揭露如上，然其并非用以限定本申请。本申请所属技术领域中具有通常知识者，在不脱离本申请的精神和范围内，当可作各种的更动与润饰。因此，本申请的保护范围当视权利要求书所界定者为准。

Claims (10)

  1. 一种导光膜网点加工设备，其特征在于，包括用于放置未成型网点导光膜卷的放料装置、用于收卷网点加工后导光膜卷的收料装置、位于放料装置和收料装置之间的网点加工装置和电连接于网点加工装置的联动控制器；
    所述网点加工装置包括分别对称设置在导光膜厚度方向的第一加压装置和第二加压装置、第一模具座和第二模具座、第一热压模和第二热压模；
    所述第一模具座安装于第一加压装置靠近导光膜侧，所述第一热压模设置在第一模具座靠近导光膜侧，且第一热压模平面平行于导光膜表面；所述第二模具座安装于第二加压装置靠近导光膜侧，所述第二热压模设置在第二模具座靠近导光膜侧，且第二热压模平面平行于导光膜表面；
    所述第一模具座和第二模具座内部均设置有加热单元和冷却单元，并且加热单元和冷却单元在第一模具座和第二模具座内部间隔安装；
    所述联动控制器用于控制驱动第一加压装置和第二加压装置沿导光膜厚度方向相对或相背运动，并且当第一加压装置和第二加压装置相对运动时，联动控制器至少使得第一热压模和第二热压模抵触于导光膜表面；所述联动控制器还用于程序控制第一模具座和第二模具座内部加热单元和冷却单元的启停，使得第一热压模和第二热压模在导光膜表面成型网点。
  2. 根据权利要求1所述的导光膜网点加工设备，其特征在于，所述第一模具座靠近导光膜侧均匀设置有位于同一直线的若干凹槽，所述第一热压模沿其厚度方向部分埋设于凹槽内；所述第一模具座和第二模具座结构相同；
    所述加热单元设置为电热单元，电热单元的传热平面平行于导光膜表面；所述冷却单元设置在电热单元和凹槽之间，设置为沿导光膜宽度方向贯穿第一模具座的冷却通道；所述冷却通道一端为冷却液入口，另一端为冷却液出口。
  3. 根据权利要求2所述的导光膜网点加工设备，其特征在于，所述第一热压模可拆卸连接于第一模具座的凹槽内壁，所述第二热压模可拆卸连接于第二模具座的凹槽内壁。
  4. 根据权利要求2所述的导光膜网点加工设备，其特征在于，所述冷却通道设置为沿其长度方向截面为方形的通孔，所述通孔在第一模具座内沿电热单元安装面上的投影至少覆盖电热单元。
  5. 根据权利要求4所述的导光膜网点加工设备，其特征在于，所述通孔两端封闭，且通孔的冷却液入口端封闭面上开设有一进液口，通孔的冷却液出口端封闭面上开设有一出液口。
  6. 根据权利要求1所述的导光膜网点加工设备，其特征在于，定义导光膜的宽度为D，第一模具座靠近导光膜侧沿导光膜宽度方向的宽度为D1，第二模具座靠近导光膜侧沿导光膜宽度方向的宽度为D2，则D1＞D，D2＞D。
  7. 根据权利要求1所述的导光膜网点加工设备，其特征在于，所述导光膜网点加工设备还包括各设置有两个导向轮的第一导向轮组和第二导向轮组，以及取料装置和成品收集装置；
    所述第一导向轮组设置在放料装置和网点加工装置之间，第一导向轮组的两个导向轮对称设置在导光膜厚度方向的两侧，并且两个导向轮分别抵接于导光膜的表面；所述第二导向轮组设置在网点加工装置和收料装置之间，第二导向轮组的两个导向轮对称设置在导光膜厚度方向的两侧，并且两个导向轮分别抵接于导光膜的表面；
    所述取料装置用于拾取收料装置收卷完成的导光膜卷，所述成品收集装置用于收集取料装置拾取的导光膜卷。
  8. 根据权利要求7所述的导光膜网点加工设备，其特征在于，所述取料装置为取料机械手。
  9. 根据权利要求1所述的导光膜网点加工设备，其特征在于，所述第一热压模为镜面模、网点模或V结构模
  10. 根据权利要求1所述的导光膜网点加工设备，其特征在于，所述第二热压模为镜面模、网点模或V结构模
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