WO2019033719A1 - 一种标识结构及其制作方法 - Google Patents

一种标识结构及其制作方法 Download PDF

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Publication number
WO2019033719A1
WO2019033719A1 PCT/CN2018/075899 CN2018075899W WO2019033719A1 WO 2019033719 A1 WO2019033719 A1 WO 2019033719A1 CN 2018075899 W CN2018075899 W CN 2018075899W WO 2019033719 A1 WO2019033719 A1 WO 2019033719A1
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WO
WIPO (PCT)
Prior art keywords
light
marking
sheet
shielding layer
structure according
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.)
Ceased
Application number
PCT/CN2018/075899
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English (en)
French (fr)
Inventor
郑俊杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Skyworth RGB Electronics Co Ltd
Original Assignee
Shenzhen Skyworth RGB Electronics Co Ltd
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Filing date
Publication date
Application filed by Shenzhen Skyworth RGB Electronics Co Ltd filed Critical Shenzhen Skyworth RGB Electronics Co Ltd
Publication of WO2019033719A1 publication Critical patent/WO2019033719A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418Constructional details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486Details, accessories and auxiliary operations
    • B29C2045/14868Pretreatment of the insert, e.g. etching, cleaning

Definitions

  • the invention relates to the technical field of product identification, in particular to a marking structure and a manufacturing method thereof.
  • LOGO (Identification) is a must-have part for TVs and other electronic products. As users' requirements for product identification become higher and higher, many product logos begin to use lighting effects to enhance the appearance and visual experience of the products. At present, there are many product logos made by the combination of transparent materials and vacuum plating. The usual practice is to add a separate part to shade the transparent LOGO structure, which is assembled or nested with the LOGO structure, but this way The practice is likely to cause a certain gap between the LOGO structure and the part, resulting in a light exposure, that is, the edge of the LOGO pattern in the LOGO structure is prone to light leakage, affecting the appearance effect, and often requires some additional shading material to possibly have a gap. The place is shielded and filled, that is, the process of shading filling is added. Therefore, such an approach has the disadvantages of cumbersome processes, low production efficiency, low reliability, and easy formation of light leakage at the edges of the LOGO pattern.
  • the usual practice is to add some shading.
  • the material adheres to the island location, which further complicates the process, increases the manufacturing cost, and may cause the light-shielding material to be dropped and the reliability to be low.
  • the main object of the present invention is to provide a marking structure and a manufacturing method thereof, which aim to solve the problems of cumbersome process, low reliability and easy light leakage in the existing marking structure and the manufacturing method thereof.
  • the marking structure provided by the present invention comprises a light-transmitting sheet and a light-shielding layer, one side of the light-transmitting sheet has a marking portion protruding from the surface, and the light-shielding layer is injection-molded and formed on the light-transmitting sheet. On one side of the portion, the light shielding layer is closed and filled around the marking portion, and an identification hole matching the marking portion is formed on the light shielding layer.
  • the marking portion has a pattern in a closed loop structure, and the transparent sheet is provided with a through hole through which a gate point is formed after being injected into the closed-loop center of the pattern, and the gate point is located at the The side of the light shielding layer facing the light transmissive sheet.
  • the light-transmissive sheet is further provided with a positioning hole for engaging with a positioning portion on the injection mold.
  • the transparent sheet has a melting point greater than a melting point of the light shielding layer.
  • the material of the light shielding layer comprises acrylonitrile-butadiene-styrene and glass fiber, and the light shielding layer has a shrinkage ratio of less than 0.2%.
  • a side of the transparent sheet facing away from the marking portion has a coating layer, and the coating layer has a light transmittance of 10%-20%.
  • the marking structure further comprises a backlight sheet, the backlight sheet being located on a side of the transparent sheet facing away from the marking portion.
  • the invention also provides a method for fabricating a marking structure, the method comprising the following steps:
  • the light-transmissive sheet is placed in an injection mold, and a light-shielding material is injected into the injection mold through a gate, and a light-shielding material injected into the injection mold is closed and filled around the marking portion to form a light shielding layer, and the light shielding layer is formed.
  • An identification hole that matches the identification portion is formed on the layer.
  • the following steps are further included before machining one side of the light transmissive sheet:
  • a surface of the light-transmissive sheet facing away from the marking portion is subjected to vacuum sputtering coating to form a plating layer.
  • the step of vacuum sputtering coating on the side of the transparent sheet facing away from the marking portion further comprises the following steps:
  • the surface of the light-transmitting sheet is subjected to a strengthening treatment.
  • the portion other than the marking portion on the light-transmitting sheet is completely shielded by the light-shielding layer, and there is no gap around the marking portion.
  • the light source is incident on the side of the light-transmissive sheet facing away from the marking portion, so that the marking portion emits light, the edge of the light-emitting sheet does not leak, and the pattern is clear.
  • the marking structure can be injection-molded at one time, omitting the process of shading filling, thereby simplifying the process, improving the production efficiency, and having high reliability, avoiding the phenomenon of light leakage at the edge of the marking portion, having good appearance effect and good visual experience.
  • FIG. 1 is a schematic view showing the assembly of an identification structure according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a light-transmitting sheet and a light shielding layer portion according to an embodiment of the present invention
  • FIG. 3 is an exploded perspective view of an identification structure according to an embodiment of the present invention.
  • FIG. 4 is an exploded perspective view of the identification structure in another perspective according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for fabricating an identification structure according to an embodiment of the present invention.
  • first, second, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms "connected”, “fixed” and the like should be understood broadly, unless otherwise clearly defined and limited.
  • “fixed” may be a fixed connection, or may be a detachable connection, or may be integrated; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the marking structure provided by the present invention comprises a light-transmitting sheet 1 and a light-shielding layer 2, one side of the light-transmitting sheet 1 has a marking portion 11 protruding from the surface, and the light-shielding layer 2 is injection-molded to be transparent.
  • the sheet 1 has one side of the marking portion 11, and the light shielding layer 2 is closed and filled around the marking portion 11, and an identification hole 21 matching the marking portion 11 is formed on the light shielding layer 2.
  • the light-transmissive sheet 1 of the present embodiment is made of polycarbonate (PC) or acrylic material, and one side of the light-transmissive sheet 1 is machined by a numerical control machine tool (CNC), and a part of the material that does not emit light is processed to form a surface protruding from the surface.
  • the marking portion 11 (logo pattern), and then the processed light-transmissive sheet 1 is placed in an injection mold (not shown), a light-shielding material is injected into the injection mold through the gate, and the light-shielding material injected into the injection mold is closed.
  • the light shielding layer 2 is formed by being filled around the marking portion 11.
  • the LOGO pattern matches the marking hole 21 on the light shielding layer 2, that is, the LOGO pattern protrudes and is closely embedded in the marking hole 21, and the outer surface of the LOGO pattern extending into the marking hole 21 deviates from the light shielding layer 2
  • the surface of the light-transmitting sheet 1 is flush, and the portion of the light-transmitting sheet 1 other than the LOGO pattern is completely shielded by the light-shielding layer 2, and there is no gap around the LOGO pattern.
  • the light source When it is required to emit light, the light source is incident on the side of the light-transmissive sheet 1 facing away from the LOGO pattern, so that the LOGO pattern emits light, the edge of the light-transmissive sheet does not leak, and the pattern is clear.
  • the marking structure can be injection molded at one time, omitting the process of shading filling, thereby simplifying the process, improving the production efficiency, and having high reliability, avoiding the phenomenon of light leakage at the edge of the LOGO pattern, having good appearance effect and good visual experience.
  • the LOGO pattern may be a letter, a number, a Chinese character, or the like, or may be a pattern formed by any combination of letters, numbers, or Chinese characters.
  • the LOGO pattern is a letter group "Skyworth".
  • the LOGO pattern has a letter "o" in a closed loop structure, that is, an island position is formed in the ring of the letter "o".
  • the light-transmissive sheet 1 is provided with a through hole 12, and the through hole 12 is an injection-molded rubber inlet corresponding to the island position.
  • the injection mold when injection molding is performed into an injection mold, the injection mold has three gates arranged side by side, and a gate located in the middle corresponds to the through hole 12.
  • the light-shielding material is injected from three gates, wherein the light-shielding material is sequentially closed and filled in the island position through the gate and the through-hole 12 at the intermediate position, and the light-shielding material is closed and filled by the other two gates to fill the island.
  • the LOGO pattern other than the position other areas to be shielded are formed, and after injection molding, three gate points 22 on the light shielding layer 2 are formed, and the three gate points 22 are located on one side of the light shielding layer 2 facing the light transmitting sheet 1.
  • the island location area in the LOGO pattern and the other areas to be shielded can be filled at one time at the same time, and no additional shielding material is needed to adhere the island location, which not only simplifies the process, reduces the cost, and is reliable.
  • the light-transmitting sheet 1 of the present embodiment is further provided with a positioning hole 13 for engaging with a positioning portion on the injection mold to fix the light-transmitting sheet 1 in the injection mold, thereby preventing injection molding.
  • the injection molding effect is ensured.
  • the melting point of the light-transmitting sheet 1 is larger than the melting point of the light-shielding layer 2, and the transparent sheet is melted at the time of injection molding to prevent the edge line of the LOGO pattern from being deformed.
  • the melting point of the light-transmitting sheet 1 is larger than the temperature of the injection mold.
  • the light shielding layer 2 of the present embodiment is made of a mixture of acrylonitrile butadiene styrene (ABS) and glass fiber (GF), wherein the mass ratio of ABS to GF is 9:1.
  • ABS acrylonitrile butadiene styrene
  • GF glass fiber
  • the shrinkage ratio of the light shielding layer 2 is less than 0.2% to reduce the amount of bending deformation of the marked product, so that it has a good flatness.
  • the light shielding layer 2 may also be made of other dark materials, and the shrinkage ratio of the light shielding layer 2 is not more than 0.2%.
  • the surface of the transparent sheet 1 facing away from the marking portion 11 is subjected to vacuum sputtering coating, and the surface of the transparent sheet 1 facing away from the marking portion 11 has a coating layer (not shown).
  • the coating layer of the embodiment is metal. Plating, metal plating can be gold, silver or other colors.
  • the LOGO pattern presents the color of the light source, and the color of the light source can be adjusted according to actual needs.
  • the LOGO pattern presents a bright metal plating color, which has the advantage of being beautiful.
  • the thickness of the coating layer affects the light transmittance.
  • the light transmittance of the coating layer of the present embodiment is 10% to 20%, and the metal texture when the LOGO pattern is not illuminated and the bright effect when the LOGO pattern is illuminated can be satisfied.
  • the marking structure of the embodiment further includes a backlight sheet 3 , and the backlight sheet 3 is located on a side of the transparent sheet 1 facing away from the marking portion 11 .
  • the backlight sheet 3 supplies a light source to the LOGO pattern.
  • the present invention also provides a method for fabricating an identification structure, the method comprising the following steps:
  • the light-transmissive sheet 1 is selected.
  • the light-transmissive sheet 1 of the embodiment is selected from a high-brightness and transparent PC sheet having a thickness of 1.5 mm, and then one side of the light-transmitting sheet 1 is machined by a CNC, and the processing depth is 0.8 mm.
  • a LOGO pattern protruding from the surface is formed.
  • the transparent sheet 1 can be processed in two times, and the selected tool is a rotary knife with a rounded tip. For the first roughing, a tool with a cutter head diameter of 2 mm was selected. The roughing process caused the material of the PC sheet to be quickly cut and removed.
  • the second time is finishing, selecting a tool with a cutter head diameter of 0.5mm to cut out the desired LOGO pattern.
  • the flatness and brightness of the surface of the PC sheet are ensured by the method of roughing and finishing, and the chamfer size of the LOGO pattern is equal to the diameter of the cutter head used for finishing, which is 0.5 mm, which has the advantage of being beautiful.
  • the tool selected for finishing has a tip diameter of no greater than 0.5 mm.
  • the light-transmissive sheet 1 is placed in an injection mold, and three gates are reserved on the injection mold, one of which corresponds to an island position in the LOGO pattern, and the gate of the embodiment has a diameter of about 2 mm.
  • the light shielding material is injected into the injection mold through the three gates, and the light shielding material injected into the injection mold is closed and filled around the LOGO pattern to form the light shielding layer 2.
  • the light shielding layer 2 is bonded to the light-transmitting sheet 1, and the portion of the light-transmitting sheet 1 other than the LOGO pattern is completely shielded by the light-shielding layer 2, and there is no gap around the LOGO pattern.
  • the method before the machining of one side of the transparent sheet 1 , the method further comprises the steps of: performing vacuum sputtering coating on the side of the transparent sheet 1 facing away from the LOGO pattern to form a coating layer on the surface, the embodiment
  • the coating layer of the example is a metal plating layer, and the metal plating layer can be gold, silver or other colors, so that the LOGO pattern exhibits a bright metal plating color when not emitting light, and has an aesthetic advantage.
  • the method further comprises the steps of: strengthening the surface of the transparent sheet 1 to enhance the surface hardness of the transparent sheet 1 and improving scratch resistance.
  • the strengthening treatment method adopted in this embodiment is as follows: firstly, the surface of the transparent sheet 1 is sprayed with a shadowless glue (UV glue), and the formula of the UV glue can be adjusted according to actual needs, and then the glue is cured by ultraviolet (UV) irradiation.
  • UV glue ultraviolet
  • the hardness of the surface of the light-transmitting sheet 1 can be increased to 2H-5H.
  • the light-transmitting sheet 1 of the present embodiment can be increased in hardness to 2H after the strengthening treatment.
  • the strengthening treatment of the surface of the light-transmitting sheet 1 may be carried out by other strengthening treatment methods in the prior art.
  • the method has the advantages of one-time injection molding when the marking structure is made, omitting the process of shading filling, and does not need to add some shading material to adhere the island position, which simplifies the process, improves the production efficiency, and has high reliability and avoids Light leakage occurs at the edge of the LOGO pattern.
  • the surface of the marking structure is flat, and the highlighting effect is perfectly reflected, which has the advantages of good appearance effect and good visual experience.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

一种标识结构,包括透光片(1)和遮光层(2),透光片(1)的一面具有凸出于该表面的标识部(11),遮光层(2)注塑形成于透光片(1)具有标识部(11)的一面,遮光层(2)封闭并填充于标识部(11)的周围,并在遮光层(2)上形成与标识部(11)匹配的标识孔(21)。还公开了一种标识结构的制作方法。标识结构和制作方法具有工艺简单、可靠性高和不易漏光的优点。

Description

一种标识结构及其制作方法
技术领域
本发明涉及产品标识技术领域,尤其涉及一种标识结构及其制作方法。
背景技术
LOGO(标识)是电视及其他电子产品必备的一个零件,随着用户对产品标识的要求越来越高,很多产品标识开始使用发光效果,以增强产品的外观效果和视觉体验。目前,有很多产品标识采用透明材料与真空镀结合的工艺制成,通常的做法是:增加一个单独的零件对透明的LOGO结构进行灯光遮蔽,该零件与LOGO结构进行装配或者嵌套,但这样的做法容易造成LOGO结构和该零件之间具有一定的缝隙,导致有灯光露出,即LOGO结构中LOGO图案的边缘容易出现漏光现象,影响外观效果,往往需要额外用一些遮光材料对可能出现缝隙的地方进行遮蔽、填充,即增加了遮光填充的工序。因此,这样的做法存在工艺繁琐、生产效率低、可靠性不高及易在LOGO图案的边缘形成漏光的缺点。
另外,对于LOGO结构中具有闭环结构的图案,即LOGO图案内的孤岛位置(如字母O、D等,字母中间需要进行遮蔽的位置会形成局部封闭的孤岛),通常的做法是额外增加一些遮光材料对孤岛位置进行黏贴,进一步使工艺变得繁琐,增加了制作成本,并且黏贴的遮光材料可能会发生掉落,可靠性低。
发明内容
本发明的主要目的在于提供一种标识结构及其制作方法,旨在解决现有标识结构及其制作方法存在的工艺繁琐、可靠性低和易漏光的问题。
为实现上述目的,本发明提供的标识结构包括透光片和遮光层,所述透光片的一面具有凸出于该表面的标识部,所述遮光层注塑形成于所述透光片具有标识部的一面,所述遮光层封闭并填充于所述标识部的周围,并在所述遮光层上形成与所述标识部匹配的标识孔。
优选地,所述标识部具有呈闭环结构的图案,所述透光片上开设有通孔,通过所述通孔向所述图案的闭环中心注塑后形成浇口点,所述浇口点位于所述遮光层上朝向所述透光片的一面。
优选地,所述透光片还开设有定位孔,所述定位孔用于与注塑模具上的定位部配合。
优选地,所述透光片的熔点大于所述遮光层的熔点。
优选地,所述遮光层的材质包括丙烯腈-丁二烯-苯乙烯和玻璃纤维,所述遮光层的收缩率小于0.2%。
优选地,所述透光片背离所述标识部的一面具有镀膜层,所述镀膜层的透光率为10%-20%。
优选地,所述标识结构还包括背光源片,所述背光源片位于所述透光片背离所述标识部的一面。
本发明同时提供一种标识结构的制作方法,所述方法包括以下步骤:
对透光片的一面进行机加工,加工完成后形成凸出于该表面的标识部;
将所述透光片放入注塑模具内,通过浇口向注塑模具内注入遮光材料,注入注塑模具内的遮光材料封闭并填充于所述标识部的周围,形成遮光层,并在所述遮光层上形成与所述标识部匹配的标识孔。
优选地,对透光片的一面进行机加工之前还包括以下步骤:
对所述透光片上背离所述标识部的一面进行真空溅射镀膜,形成镀膜层。
优选地,对所述透光片上背离所述标识部的一面进行真空溅射镀膜之前还包括以下步骤:
对所述透光片表面进行强化处理。
在本发明的技术方案中,透光片上除标识部以外的部分被遮光层完全遮蔽,标识部的周围不存在间隙。需要发光时,向透光片上背离标识部的一面射入光源,使得标识部发光,其边缘不会出现漏光现象,且图案呈现清晰。该标识结构可以一次性注塑成型,省略了遮光填充的工序,从而简化了工艺,提高了生产效率,且其可靠性高,避免了标识部边缘出现漏光的现象,具有外观效果好和视觉体验佳的优点。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图示出的结构获得其他的附图。
图1为本发明实施例标识结构的装配示意图;
图2为本发明实施例透光片及遮光层部分的结构示意图;
图3为本发明实施例标识结构的分解示意图;
图4为本发明实施例标识结构在另一视角的分解示意图;
图5为本发明实施例标识结构的制作方法的流程图。
附图标号说明:
标号 名称 标号 名称
1 透光片 11 标识部
12 通孔 13 定位孔
2 遮光层 21 标识孔
22 浇口点 3 背光源片
本发明目的实现、功能特点及优点将结合实施例,参照附图做进一步说明。
具体实施方式
下面将结合本实施例中的附图,对本实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
需要说明,本实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。
另外,在本发明中如涉及“第一”、“第二”等的描述仅用于描述目的,而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中,“多个”的含义是至少两个,例如两个,三个等,除非另有明确具体的限定。
在本发明中,除非另有明确的规定和限定,术语“连接”、“固定”等应做广义理解,例如,“固定”可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系,除非另有明确的限定。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。
另外,本发明各个实施例之间的技术方案可以相互结合,但是必须是以本领域普通技术人员能够实现为基础,当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在,也不在本发明要求的保护范围之内。
应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
如图1至图4所示,本发明提供的标识结构包括透光片1和遮光层2,透光片1的一面具有凸出于该表面的标识部11,遮光层2注塑形成于透光片1具有标识部11的一面,遮光层2封闭并填充于标识部11的周围,并在遮光层2上形成与标识部11匹配的标识孔21。本实施例的透光片1采用聚碳酸酯(PC)或亚克力材料,采用数控机床(CNC)对透光片1的一面进行机加工,加工掉一部分不要发光的材料,形成凸出于该表面的标识部11(LOGO图案),然后将加工完成后的透光片1放入注塑模具(图未示)内,通过浇口向注塑模具内注入遮光材料,注入注塑模具内的遮光材料封闭并填充于标识部11的周围,形成遮光层2。
注塑成型后,LOGO图案与遮光层2上的标识孔21匹配,即LOGO图案伸入并紧密镶嵌在该标识孔21中,伸入标识孔21中的LOGO图案的外表面与遮光层2上背离透光片1的表面平齐,透光片1上除LOGO图案以外的部分被遮光层2完全遮蔽,LOGO图案的周围不存在间隙。需要发光时,向透光片1上背离LOGO图案的一面射入光源,使得LOGO图案发光,其边缘不会出现漏光现象,且图案呈现清晰。该标识结构可以一次性注塑成型,省略了遮光填充的工序,从而简化了工艺,提高了生产效率,且其可靠性高,避免了LOGO图案边缘出现漏光的现象,具有外观效果好和视觉体验佳的优点。
需要说明的是,LOGO图案可以是字母、数字或汉字等,还可以是由字母、数字或汉字等任意组合形成的图案。本实施例中LOGO图案为字母组“Skyworth”。
本实施例中,LOGO图案具有呈闭环结构的字母“o”,即字母“o”的环内形成孤岛位置。透光片1上开设有通孔12,通孔12为与孤岛位置对应的注塑进胶口。本实施例向注塑模具内注塑时,注塑模具具有三个并排布置的浇口,位于中间的一个浇口与该通孔12对应。注塑时,遮光材料从三个浇口注入,其中,遮光材料依次通过位于中间位置的浇口和通孔12后向封闭并填充孤岛位置,遮光材料通过其他两个浇口后封闭并填充除孤岛位置以外的LOGO图案中其他需要遮蔽的区域,注塑后形成位于遮光层2上的三个浇口点22,三个浇口点22均位于遮光层2上朝向透光片1的一面。本实施例可对LOGO图案中的孤岛位置区域与其他需要遮蔽的区域同时一次性整体填充,不需要额外增加一些遮光材料对孤岛位置进行黏贴,不仅简化了工艺,降低了成本,而且具有可靠性高的优点。
如图4所示,本实施例的透光片1还开设有定位孔13,定位孔13用于与注塑模具上的定位部配合,以将透光片1固定在注塑模具中,从而防止注塑时透光片1在模具中移动,保证了注塑效果。
本实施例中,透光片1的熔点大于遮光层2的熔点,避免注塑时透明片被融化而出现LOGO图案边缘线条变形的情况。透光片1的熔点大于注塑模具的温度。
本实施例的遮光层2是由丙烯腈-丁二烯-苯乙烯(ABS)和玻璃纤维(GF)混合制成,其中,ABS与GF的质量比为9:1。遮光层2的收缩率小于0.2%,以减少该标识产品的弯曲变形量,使其具有较好的平整度。在其他实施例中遮光层2也可以是其他深色材质制成,并且使遮光层2的收缩率不大于0.2%。
本实施例中,对透光片1背离标识部11的一面进行真空溅射镀膜,使透光片1背离标识部11的一面具有镀膜层(图未示),本实施例的镀膜层为金属镀层,金属镀层可以呈现金色、银色或其他颜色。发光时,LOGO图案呈现光源的颜色,光源的颜色可根据实际需要进行调整,不发光时,LOGO图案呈现明亮的金属镀层的颜色,具有美观的优点。镀膜层的厚度影响其透光率,本实施例的镀膜层的透光率为10%-20%,可以同时满足LOGO图案不发光时的金属质感和LOGO图案发光时的明亮效果。
如图1、图3和图4所示,本实施例的标识结构还包括背光源片3,背光源片3位于透光片1背离标识部11的一面。需要发光时,背光源片3向LOGO图案提供光源。
如图5所示,本发明还提供一种标识结构的制作方法,该方法包括以下步骤:
S1:选取透光片1,本实施例的透光片1选取厚度为1.5mm的高亮、透明的PC片材,然后采用CNC对透光片1的一面进行机加工,加工深度为0.8mm,加工完成后形成凸出于该表面的LOGO图案。为避免LOGO图案变形,可分两次对透光片1进行加工,加工时所选的刀具为带有圆头刀尖的旋转刀。第一次为粗加工,选用刀头直径为2mm的刀具,粗加工使得PC片材部分材料被快速切割、移除。第二次为精加工,选取刀头直径为为0.5mm的刀具,切割出需要的LOGO图案。采用先粗加工后精加工的方式保证了PC片材表面的平整度和光亮度,并且LOGO图案的倒角尺寸与精加工时选用的刀具的刀头直径相等,为0.5mm,具有美观的优点。在其他实施例中,精加工时选用的刀具的刀头直径不大于0.5mm。加工完成后注意清理加工过程中形成的碎屑。
S2:将透光片1放入注塑模具内,注塑模具上预留三个浇口,其中一个浇口对应LOGO图案中的孤岛位置,本实施例的浇口的直径约为2mm。通过三个浇口向注塑模具内注入遮光材料,注入注塑模具内的遮光材料封闭并填充于LOGO图案的周围,形成遮光层2。冷却后,遮光层2与透光片1结合在一起,透光片1上除LOGO图案以外的部分被遮光层2完全遮蔽,LOGO图案的周围不存在间隙。
在进一步的技术方案中,对透光片1的一面进行机加工之前还包括步骤:对透光片1上背离LOGO图案的一面进行真空溅射镀膜,以在该面上形成镀膜层,本实施例的镀膜层为金属镀层,金属镀层可以呈现金色、银色或其他颜色,使得不发光时LOGO图案呈现明亮的金属镀层的颜色,具有美观的优点。
更进一步地,对透光片1上背离所述标识部的一面进行真空溅射镀膜之前还包括步骤:对透光片1表面进行强化处理,以加强透光片1的表面硬度,提高耐划伤的能力,防止机加工时LOGO图案边缘出现崩料现象,同时增强了镀膜层的附着力。本实施例采用的强化处理的方式是:首先对的透光片1表面喷涂无影胶水(UV胶水),UV胶水的配方可根据实际需要进行调整,然后用紫外线(UV)照射让胶水固化。强化处理后,透光片1表面的硬度可以提高到2H-5H。本实施例的透光片1经过强化处理后其硬度提高到2H即可。在其他实施例中,对透光片1表面进行强化处理可以采用现有技术中的其他强化处理方式。
该方法制作标识结构时一次性注塑成型,省略了遮光填充的工序,并且不需要额外增加一些遮光材料对孤岛位置进行黏贴,简化了工艺,提高了生产效率,且其可靠性高,避免了LOGO图案边缘出现漏光的现象,同时,使得标识结构的表面平整,高亮的效果得到完美的体现,具有外观效果好和视觉体验佳的优点。
以上仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (15)

  1. 一种标识结构,其特征在于,包括透光片和遮光层,所述透光片的一面具有凸出于该表面的标识部,所述遮光层注塑形成于所述透光片具有标识部的一面,所述遮光层封闭并填充于所述标识部的周围,并在所述遮光层上形成与所述标识部匹配的标识孔。
  2. 根据权利要求1所述的标识结构,其特征在于,所述标识部具有呈闭环结构的图案,所述透光片上开设有通孔,通过所述通孔向所述图案的闭环中心注塑后形成浇口点,所述浇口点位于所述遮光层上朝向所述透光片的一面。
  3. 根据权利要求2所述的标识结构,其特征在于,所述透光片背离所述标识部的一面具有镀膜层,所述镀膜层的透光率为10%-20%。
  4. 根据权利要求2所述的标识结构,其特征在于,所述标识结构还包括背光源片,所述背光源片位于所述透光片背离所述标识部的一面。
  5. 根据权利要求1所述的标识结构,其特征在于,所述透光片还开设有定位孔,所述定位孔用于与注塑模具上的定位部配合。
  6. 根据权利要求5所述的标识结构,其特征在于,所述透光片背离所述标识部的一面具有镀膜层,所述镀膜层的透光率为10%-20%。
  7. 根据权利要求5所述的标识结构,其特征在于,所述标识结构还包括背光源片,所述背光源片位于所述透光片背离所述标识部的一面。
  8. 根据权利要求1所述的标识结构,其特征在于,所述透光片的熔点大于所述遮光层的熔点。
  9. 根据权利要求8所述的标识结构,其特征在于,所述透光片背离所述标识部的一面具有镀膜层,所述镀膜层的透光率为10%-20%。
  10. 根据权利要求1所述的标识结构,其特征在于,所述遮光层的材质包括丙烯腈-丁二烯-苯乙烯和玻璃纤维,所述遮光层的收缩率小于0.2%。
  11. 根据权利要求1所述的标识结构,其特征在于,所述透光片背离所述标识部的一面具有镀膜层,所述镀膜层的透光率为10%-20%。
  12. 根据权利要求1所述的标识结构,其特征在于,所述标识结构还包括背光源片,所述背光源片位于所述透光片背离所述标识部的一面。
  13. 一种标识结构的制作方法,其特征在于,所述方法包括以下步骤:
    对透光片的一面进行机加工,加工完成后形成凸出于该表面的标识部;
    将所述透光片放入注塑模具内,通过浇口向注塑模具内注入遮光材料,注入注塑模具内的遮光材料封闭并填充于所述标识部的周围,形成遮光层,并在所述遮光层上形成与所述标识部匹配的标识孔。
  14. 根据权利要求13所述的标识结构的制作方法,其特征在于,对透光片的一面进行机加工之前还包括以下步骤:
    对所述透光片上背离所述标识部的一面进行真空溅射镀膜,形成镀膜层。
  15. 根据权利要求14所述的标识结构的制作方法,其特征在于,对所述透光片上背离所述标识部的一面进行真空溅射镀膜之前还包括以下步骤:
    对所述透光片表面进行强化处理。
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