WO2021114482A1 - 具有双层或多层装饰面料的塑胶壳体及其制作工艺 - Google Patents

具有双层或多层装饰面料的塑胶壳体及其制作工艺 Download PDF

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WO2021114482A1
WO2021114482A1 PCT/CN2020/076522 CN2020076522W WO2021114482A1 WO 2021114482 A1 WO2021114482 A1 WO 2021114482A1 CN 2020076522 W CN2020076522 W CN 2020076522W WO 2021114482 A1 WO2021114482 A1 WO 2021114482A1
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Prior art keywords
sheet
plastic shell
fabric
plastic
double
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PCT/CN2020/076522
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English (en)
French (fr)
Inventor
胡以锦
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东莞市昊通塑胶科技有限公司
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Priority claimed from CN201922228476.1U external-priority patent/CN211764621U/zh
Priority claimed from CN201911268854.7A external-priority patent/CN110978380A/zh
Application filed by 东莞市昊通塑胶科技有限公司 filed Critical 东莞市昊通塑胶科技有限公司
Publication of WO2021114482A1 publication Critical patent/WO2021114482A1/zh

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    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection 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

Definitions

  • the invention relates to the technical field of plastic processing, in particular to a plastic shell with double or multilayer decorative fabrics and a manufacturing process thereof.
  • Plastic products especially injection molded products
  • product designers often rack their brains to design products with unique appearances to attract consumers' attention.
  • the imagination of designers can be infinitely large, while the space produced by manufacturers has limitation.
  • a designer designs a shell with a splicing and color contrast effect, which needs to be covered with other fabrics (such as leather, cloth, etc.) on the flat or three-dimensional surface of the plastic product.
  • the existing production method is to use the fabric manually Wrapping, pasting, sewing, and splicing to the appearance surface of injection molded products, using existing manufacturing methods, is difficult to achieve the desired effect, and there are the following shortcomings:
  • the processing process mainly relies on manual labor, and the single-person production efficiency is not high;
  • the quality is unstable, the consistency is poor, and the reliability is poor, such as the adhesive force will be attenuated at high or low temperature and after long-term use;
  • the present invention provides a plastic shell with double or multilayer decorative fabrics and its manufacturing process, which can present two or more different sheets on the plane or three-dimensional of the same plastic shell at the same time.
  • the appearance surface can significantly reduce the height difference of the sheet splicing place, restore the smooth surface to the greatest extent, have the advantages of high production efficiency, stable quality, etc., and solve the problems of easy warping, wrinkling, and degumming existing in the prior art.
  • a plastic shell with double or multiple layers of decorative fabrics including a plastic shell body and a decorative layer, the decorative layer covering the surface of the plastic shell, including at least two different layers
  • a sheet of fabric wherein the sheet in contact with the surface of the plastic shell is a bottom material layer, and the sheet covering the outer surface of the bottom material layer is a fabric layer
  • the fabric layer has a hollow structure, and the bottom material layer The hollow area appears on the surface of the plastic shell, and the bottom material layer and the fabric layer are connected by hot melt adhesive bonding.
  • the plastic shell body is made of ABS or PC or TPU or TPE or PET material.
  • the sheet material is artificial leather or real leather or cloth or soft metal film or soft metal film or soft plastic film or soft plastic film or any combination of the above materials.
  • the fabric layer may include multiple layers of sheets, and staggered hollow areas are arranged between the different layers of sheets.
  • the plastic shell body and the decorative layer form a seamless fusion structure through in-mold insert injection molding.
  • the four sides of the plastic shell have bending parts integrally formed with the plastic shell body.
  • the manufacturing process of a plastic shell with double or multilayer decorative fabrics includes the following steps:
  • the composite sheet is positioned and cut with a knife mold with elastic positioning posts, and positioning holes for injection molding are punched out on the composite sheet to obtain a molded sheet;
  • the molded sheet Pre-shape the molded sheet, put the pre-shaped molded sheet into the injection mold, accurately position it through the positioning hole, arrange and flatten it to roughly fit the injection mold cavity, and perform the injection of the plastic material; through the high temperature and high pressure of the injection molding machine As well as the shaping of the injection mold, the molten plastic is seamlessly combined with the molded sheet, extruded, and cooled to form the desired product. At the same time, the height difference on the molded sheet is flattened, and the entire molded sheet The material is completely embedded in the plastic body, and finally the finished product is obtained.
  • the step of pre-forming the shaped sheet further comprises bending the four sides of the shaped sheet according to the shape of the final product.
  • the pre-forming step of the shaped sheet further includes hot press forming after attaching a heat-settable base material sheet or film to the shaped sheet.
  • the sheet is artificial leather or real leather or cloth or plastic sheet or plastic film or metal sheet or printed plastic sheet or a sheet containing microminiature decoration or any combination of the foregoing materials.
  • the miniature decorative sheet is a sheet containing rhinestones or nickel flakes or dried flowers or colored sequins.
  • the present invention provides a plastic shell with double or multilayer decorative fabrics and a manufacturing process thereof, and has the following beneficial effects:
  • the surface of the plastic shell product made by the process of the present invention can have the characteristics of two or more different fabrics at the same time, can achieve the ideal splicing and color contrast effect, and the surface is smooth and free of burrs, and the fabric or design is switched during production Very flexible, greatly enriching the design options for the surface of injection molded products, significantly increasing the design space of the shape and enriching the aesthetics of the product appearance, especially when presenting a large number of island-like and precise fragmented different colors and fabrics, which has a significant advantage;
  • the finished products of the present invention are more durable and have better reliability, because the sheet material is in a tightly closed precision injection mold with molten plastic raw materials at high temperature. Seamlessly integrated under high pressure;
  • the process of the present invention is easy to implement, most of the work is done by the machine, reducing manual use, can effectively improve production efficiency, save production costs, and can significantly improve the quality of the combination of sheet and injection molded parts and the reliability of the product ;
  • the present invention adopts environmentally friendly and non-toxic solid hot melt adhesive, no toxic and harmful substances are discharged during the entire production process, and the finished products have no harmful substances residues, and are friendly to the environment and the human body;
  • the present invention integrates the decorative surface and the plastic shell, which can significantly reduce the height difference between the splicing parts of the sheets, restore the smooth surface to the greatest extent, effectively improve the product texture, and effectively solve the curved appearance of the sheet wrapped in the injection molded product. Problems such as edge warping, wrinkling, and degumming during noodles.
  • Figure 1 is a schematic diagram of the external structure of Embodiment 1 of the present invention.
  • Figure 2 is a cross-sectional view of A-A in Figure 1;
  • Figure 3 is a partial enlarged view of Figure 2;
  • Example 4 is a schematic diagram of the structure of the fabric layer in Example 1 of the present invention.
  • Figure 5 is a schematic diagram of the bottom material structure of Example 2 of the present invention.
  • Embodiment 6 is a schematic diagram of the fabric structure of Embodiment 2 of the present invention.
  • FIG. 7 is a schematic diagram of the structure of the composite sheet according to Embodiment 2 of the present invention.
  • FIG. 8 is a schematic diagram of the structure of the molded sheet according to Example 2 of the present invention.
  • Plastic shell body 2. Decorative layer; 3. Substrate layer; 4. Fabric layer; 5. Hollowed area; 6. Hot melt adhesive; 7. Substrate; 8. Fabric; 9. Composite sheet 10. Forming sheet; 11. Positioning hole; 12. Positioning hole for injection molding.
  • this embodiment provides a plastic shell with double or multiple layers of decorative fabrics, including a plastic shell body 1 and a decorative layer 2.
  • the decorative layer 2 covers the surface of the plastic shell and is decorated
  • the layer 2 at least includes a bottom material layer 3 in contact with the surface of the plastic shell, and a fabric layer 4 covering the outer surface of the bottom material layer 3.
  • the bottom material layer 3 and the fabric layer 4 are bonded and connected by hot melt adhesive 6.
  • the fabric layer 4 has a hollow structure. A number of hollow areas 5 can be provided as needed.
  • the bottom material layer 3 is presented on the surface of the plastic shell 1 through the hollow areas.
  • the plastic shell body 1 and the decorative layer 2 form a seamless fusion structure through in-mold injection molding .
  • the body material of the plastic shell of the present invention includes but not limited to ABS or PC or TPU or TPE or PET material, and the sheet material includes but not limited to artificial leather or real leather or cloth or soft metal film or soft metal flake or soft plastic film Or soft plastic sheet or any combination of the above materials.
  • This embodiment is a manufacturing process of a plastic shell with double or multiple layers of decorative fabrics. Taking the manufacturing of a plastic mobile phone shell covered with double-layer PU artificial leather as an example, it includes the following steps:
  • the base material 7 and the fabric 9 are Position the base material 7 and the fabric 9 through the corresponding positioning jig and hot press to obtain the composite sheet 9; as shown in Figure 7, the base material 7 is exposed through the hollow area of the fabric 8. At this time, the base material 7 The exposed area is one layer lower than the exposed area of the fabric 8 by the thickness of the fabric 8.
  • the composite sheet 9 is positioned and cut with a knife mold with elastic positioning posts to obtain a molded sheet 10, and a positioning hole 12 for injection molding is punched out on the composite sheet 9. As shown in Figure 8.
  • the four sides of the molded sheet 10 are bent to pre-shape, or a heat-settable base material sheet or film is attached to the molded sheet 10, and the pre-molding is performed by hot pressing, and the pre-shaped molded sheet 10 is placed in an injection mold.
  • the injection positioning holes are accurately positioned, arranged and flattened to roughly fit the injection mold cavity for injection of plastic materials; through the high temperature and high pressure of the injection molding machine and the shaping of the injection mold, the molten plastic and the molded sheet are seamlessly combined and extruded , After cooling, the product is molded into the desired product, and the height difference on the molded sheet 10 is flattened, and the whole molded sheet 10 is completely embedded in the plastic body, and finally the finished product is obtained.
  • the sheet of the present invention includes but is not limited to the following materials: artificial leather, real leather, cloth, plastic sheet or film, metal sheet or film, printed plastic sheet, and miniature decorations (such as rhinestones, nickel sheets, dried flowers) , Color sequins) sheets, and any combination of the foregoing materials.
  • the present invention creatively hollows out, cuts, and fits two or more different sheets to form a rich composite sheet, and combines it with the in-mold injection molding process to produce a surface that can be in the same plane or three-dimensional appearance.
  • Injection molding products that present real fabrics with different visual or tactile sensations and seamless integration can greatly increase the design space of product appearance while improving production efficiency and product quality.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

本发明涉及塑料加工技术领域，具体为具有双层或多层装饰面料的塑胶壳体及其制作工艺，所述工艺包括如下步骤：开料，根据需要选取其中一种片材作为底料，其余的片材作为面料；在面料的背面贴合固体热熔胶，并在面料上制作镂空区域，对底料和面料进行切割，并分别在底料和面料的边角冲定位孔；贴合，将底料和面料进行定位贴合，得到复合片材；定位切割，根据最终产品的形状，将复合片材用带有弹性定位柱的刀模进行定位切割，并在复合片材上冲出注塑用定位孔，得到成型片材；模内注塑，将成型片材定位放入注塑模具进行注塑。本发明可显著减少片材拼接处的高低差，最大限度的还原平滑表面，具备生产效率高、品质稳定等优点。

Description

具有双层或多层装饰面料的塑胶壳体及其制作工艺 技术领域
本发明涉及塑料加工技术领域，具体为具有双层或多层装饰面料的塑胶壳体及其制作工艺。
背景技术
塑胶产品尤其是注塑产品的应用非常广泛，特别是在装饰领域，例如手机壳、平板电脑保护壳等等。随着人们个性化需求的不断升级，产品设计师们往往为设计具有独特外观的产品以吸引消费者眼球而绞尽脑汁，然而，设计师的想象空间可以无限大，厂商们生产的空间却具有局限性。例如，设计师设计出一款具有拼接撞色效果的外壳，需要在塑胶产品平面或三维表面包覆其他面料(如皮革，布料等)，现有的制作方法是，将面料以人工的方式进行包裹、粘贴、车缝、拼接到注塑产品的外观面，采用现有的制作方法，很难达到理想的效果，存在以下缺点：
1.加工过程主要靠人工，单人生产效率不高；
2.品质不稳定，一致性差，可靠性不佳,如粘合力在高温或低温下以及长时间使用后会衰减；
3.消耗并残留大量不同种类的含有害化学物质的胶水，对于环境保护及人体健康存在较大威胁；
4.存在外观设计的局限性，如通常情况下，只能包裹一种面料，当需要包裹两种及以上片材时，只能先将面料进行胶粘或车线拼接，进一步地，当设计需要呈现大量的孤岛状及精准碎片化的不同颜色/纹理的面料拼接时，会使工艺复杂程度几何级提升，造成大量成本增加；
5.拼接面料时，会造成拼接处较大的凹凸不平或车缝线，影响使用感受，将面料包裹在注塑产品的曲面外观面时，容易产生翘边，起皱，脱胶等问题。
发明内容
(一)解决的技术问题
针对现有技术的不足，本发明提供了具有双层或多层装饰面料的塑胶壳体及其制作工艺，可将两种或多种不同的片材同时呈现在同一塑胶壳体的平面或三维外观面，可显著减少片材拼接处的高低差，最大限度的还原平滑表面，具备生产效率高、品质稳定等优点，解决了现有技术中存在的易翘边、起皱、脱胶等问题。
(二)技术方案
为实现上述目的，本发明提供如下技术方案：具有双层或多层装饰面料的塑胶壳体，包括塑胶壳本体及装饰层，所述装饰层包覆于塑胶壳体表面，包括至少两层不同面料的片材，其中，与塑胶壳体表面接触的片材为底料层，覆盖于所述底料层外表面的片材为面料层，所述面料层具有镂空结构，所述底料层透过镂空区域呈现于塑胶壳体表面，所述底料层和面料层之间通过热熔胶粘合相接。
优选地，所述塑胶壳本体采用ABS或PC或TPU或TPE或PET材料制成。
优选地，所述片材为人造皮革或真皮或布料或软质金属薄膜或软质金属薄片或软质塑胶薄膜或软质塑胶薄片或以上材料的任意结合。
优选地，所述面料层可包括多层片材，并在不同层片材之间设置交错的镂空区域。
优选地，所述塑胶壳本体与装饰层通过模内镶嵌注塑形成无缝融合结构。
优选地，所述塑胶壳体的四边具有与塑胶壳本体一体成型的弯折部。
具有双层或多层装饰面料的塑胶壳体的制作工艺，包括如下步骤：
S1、开料：
备好需要在塑胶壳体表面制作装饰面的两种或多种片材，根据需要选取其中一种片材作为底料，其余的片材作为面料；在面料的背面贴合固体热熔 胶，并在面料上制作镂空区域，根据最终产品所需的最大外形尺寸对底料和面料进行切割，并分别在底料和面料的边角冲位置对应的定位孔；
S2、贴合：
将底料和面料通过对应的定位治具和热压机进行定位贴合，得到复合片材；
S3、定位切割：根据最终产品的形状，将复合片材用带有弹性定位柱的刀模进行定位切割，并在复合片材上冲出注塑用定位孔，得到成型片材；
S4、模内注塑：
将成型片材进行预定型，将预定型后的成型片材放入注塑模具，通过定位孔精确定位，整理平整使其大致贴合注塑模具型腔，进行塑胶材料注塑；通过注塑机的高温高压以及注塑模具的塑形，将熔融塑料与成型片材进行无缝结合、挤压、冷却后即塑形成所需的产品，同时将成型片材上的高低差压平，并将整块成型片材完全嵌入到塑胶本体中，最后得到制成品。
优选地，所述成型片材的预定型步骤还包括根据最终产品的形状将成型片材的四边弯折。
优选地，所述成型片材的预定型步骤还包括在成型片材上贴合可热定型基材薄片或薄膜后再进行的热压成型。
优选地，所述片材为人造皮革或真皮或布料或塑胶薄片或塑胶薄膜或金属薄片或印制好的塑胶片材或含有微小型子装饰的片材或前述材料的任意结合，所述含有微小型子装饰的片材为含有水钻或镍片或干花或彩色亮片的片材。
(三)有益效果
与现有技术相比，本发明提供了具有双层或多层装饰面料的塑胶壳体及其制作工艺，具备以下有益效果：
1、采用本发明工艺制成的塑胶壳体产品表面能同时具有两种甚至多种不同面料的特性，可达到理想的拼接撞色效果，并且表面平整无毛刺，同时在生产时切换面料或设计非常灵活，大大丰富了注塑产品表面的设计选择，可显著增加外形设计空间及丰富产品外观美学，尤其是在呈现大量孤岛状及精准碎片化的不同颜色、面料时，具有显著优势；
2、与现有的覆有装饰面料的注塑产品相比，本发明的制成品更经久耐用，可靠性更佳，因为片材是在紧密闭合的精密注塑模具中与熔融的塑料原料在高温高压下无缝结合的；
3、本发明的工艺实施起来简单上手，大部分工作都由机器完成，减少人工使用，可有效提高生产效率，节约生产成本，同时可显著提高片材与注塑件的结合品质以及产品的可靠性；
4、本发明采用环保无毒型的固体热熔胶，实施生产全程无有毒有害物质排放，制成品无有害物质残留，对环境及人体友好；
5、本发明将装饰面与塑胶壳体一体成型，可显著减少片材拼接处的高低差，最大限度的还原平滑表面，有效提升产品质感，同时可有效解决片材包裹在注塑产品的曲面外观面时的翘边、起皱、脱胶等问题。
附图说明
图1为本发明实施例1的外部结构示意图；
图2为图1的A-A剖面图；
图3为图2的局部放大图；
图4为本发明实施例1的面料层结构示意图。
图5为本发明实施例2的底料结构示意图；
图6为本发明实施例2的面料结构示意图；
图7为本发明实施例2的复合片材结构示意图；
图8为本发明实施例2的成型片材结构示意图。
图中：1、塑胶壳本体；2、装饰层；3、底料层；4、面料层；5、镂空区域；6、热熔胶；7、底料；8、面料；9、复合片材；10、成型片材；11、定位孔；12、注塑用定位孔。
具体实施方式
下面将结合本发明实施例中的附图，对本发明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做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。
实施例1
如图1-4所示，本实施例提供了一种具有双层或多层装饰面料的塑胶壳体，包括塑胶壳本体1及装饰层2，装饰层2包覆于塑胶壳体表面，装饰层2至少包括与塑胶壳体表面接触的底料层3，以及覆盖于底料层3外表面的面料层4，底料层3和面料层4之间通过热熔胶6粘合相接，面料层4具有镂空结构，可以根据需要设置若干镂空区域5，底料层3透过镂空区域呈现于塑胶壳体1表面，塑胶壳本体1与装饰层2通过模内镶嵌注塑形成无缝融合结构。本发明的塑胶壳本体材质包括但不限于ABS或PC或TPU或TPE或PET材料，片材材质包括但不限于人造皮革或真皮或布料或软质金属薄膜或软质金属薄片或软质塑胶薄膜或软质塑胶薄片或以上材料的任意结合。
实施例2
本实施例为具有双层或多层装饰面料的塑胶壳体的制作工艺，以制作一款覆有双层PU人造皮革的塑料手机壳为例，包括如下步骤：
S1、开料：
如图5-6所示，备好需要在塑胶壳体表面制作装饰面的两种片材，根据 需要选取其中一种片材作为底料7，另一种片材作为面料8；先在面料8的背面贴合环保无毒型的固体热熔胶，并在面料8上制作镂空区域，根据最终产品所需的最大外形尺寸通过高速模切机对底料7和面料8进行切割，并分别在底料7和面料8的边角冲2-6个位置对应的定位孔11。
S2、贴合：
将底料7和面料9通过对应的定位治具和热压机进行定位贴合，得到复合片材9；如图7所示，底料7通过面料8的镂空区域显露出来，此时底料7露出的区域要比面料8露出的区域低一层面料8的厚度。
S3、定位切割：根据最终产品的形状，将复合片材9用带有弹性定位柱的刀模进行定位切割，得到成型片材10,并在复合片材9上冲出注塑用定位孔12，如图8所示。
S4、模内注塑：
将成型片材10四边弯折预定型，或在成型片材10上贴合可热定型基材薄片或薄膜，进行热压预定型，将预定型后的成型片材10放入注塑模具，通过注塑定位孔精确定位，整理平整使其大致贴合注塑模具型腔，进行塑胶材料注塑；通过注塑机的高温高压以及注塑模具的塑形，将熔融塑料与成型片材进行无缝结合、挤压、冷却后即塑形成所需的产品，同时将成型片材10上的高低差压平，并将整块成型片材10完全嵌入到塑胶本体中，最后得到制成品。
本发明的片材包括但不限于以下材质：人造皮革、真皮、布料、塑胶薄片或薄膜、金属薄片或薄膜、印制好的塑胶片材、含有微小型子装饰(如水钻、镍片、干花、彩色亮片)的片材、以及前述材料的任意结合。
本发明创造性的将两种甚至多种不同的片材进行镂空、切割、贴合而形成丰富的复合片材，并与模内注塑工艺相结合，从而制成了能在同一平面或三维外观面呈现不同视觉或触觉且无缝结合的真实面料的注塑产品，在提高 生产效率和产品质量的同时可大大增加产品外观的设计空间。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (10)

  1. 具有双层或多层装饰面料的塑胶壳体，包括塑胶壳本体及装饰层，其特征在于：所述装饰层包覆于塑胶壳体表面，包括至少两层不同面料的片材，其中，与塑胶壳体表面接触的片材为底料层，覆盖于所述底料层外表面的片材为面料层，所述面料层具有镂空结构，所述底料层透过镂空区域呈现于塑胶壳体表面，所述底料层和面料层之间通过热熔胶粘合相接。
  2. 如权利要求1所述的具有双层或多层装饰面料的塑胶壳体，其特征在于：所述塑胶壳本体采用ABS或PC或TPU或TPE或PET材料制成。
  3. 如权利要求1所述的具有双层或多层装饰面料的塑胶壳体，其特征在于：所述片材为人造皮革或真皮或布料或软质金属薄膜或软质金属薄片或软质塑胶薄膜或软质塑胶薄片或以上材料的任意结合。
  4. 如权利要求1所述的具有双层或多层装饰面料的塑胶壳体，其特征在于：所述面料层可包括多层片材，并在不同层片材之间设置交错的镂空区域。
  5. 如权利要求1-4任一权利要求所述的具有双层或多层装饰面料的塑胶壳体，其特征在于：所述塑胶壳本体与装饰层通过模内镶嵌注塑形成无缝融合结构。
  6. 如权利要求1所述的具有双层或多层装饰面料的塑胶壳体，其特征在于：所述塑胶壳体的四边具有与塑胶壳本体一体成型的弯折部。
  7. 具有双层或多层装饰面料的塑胶壳体的制作工艺，其特征在于，包括如下步骤：
    S1、开料：
    备好需要在塑胶壳体表面制作装饰面的两种或多种片材，根据需要选取其中一种片材作为底料，其余的片材作为面料；在面料的背面贴合固体热熔胶，并在面料上制作镂空区域，根据最终产品所需的最大外形尺寸对底料和面料进行切割，并分别在底料和面料的边角冲位置对应的定位孔；
    S2、贴合：
    将底料和面料通过对应的定位治具和热压机进行定位贴合，得到复合片材；
    S3、定位切割：根据最终产品的形状，将复合片材用带有弹性定位柱的刀模进行定位切割，并在复合片材上冲出注塑用定位孔，得到成型片材；
    S4、模内注塑：
    将成型片材进行预定型，将预定型后的成型片材放入注塑模具，通过定位孔精确定位，整理平整使其大致贴合注塑模具型腔，进行塑胶材料注塑；通过注塑机的高温高压以及注塑模具的塑形，将熔融塑料与成型片材进行无缝结合、挤压、冷却后即塑形成所需的产品，同时将成型片材上的高低差压平，并将整块成型片材完全嵌入到塑胶本体中，最后得到制成品。
  8. 根据权利要求7所述的具有双层或多层装饰面料的塑胶壳体的制作工艺，其特征在于：所述成型片材的预定型步骤还包括根据最终产品的形状将成型片材的四边弯折。
  9. 根据权利要求7或8所述的具有双层或多层装饰面料的塑胶壳体的制作工艺，其特征在于：所述成型片材的预定型步骤还包括在成型片材上贴合可热定型基材薄片或薄膜后再进行的热压成型。
  10. 根据权利要求7所述的具有双层或多层装饰面料的塑胶壳体的制作工艺，其特征在于：所述片材为人造皮革或真皮或布料或塑胶薄片或塑胶薄膜或金属薄片或印制好的塑胶片材或含有微小型子装饰的片材或前述材料的任意结合，所述含有微小型子装饰的片材为含有水钻或镍片或干花或彩色亮片的片材。
PCT/CN2020/076522 2019-12-11 2020-02-25 具有双层或多层装饰面料的塑胶壳体及其制作工艺 WO2021114482A1 (zh)

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CN201911268854.7A CN110978380A (zh) 2019-12-11 2019-12-11 在塑胶壳体表面制作无缝结合的双层或多层装饰面的工艺

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Publication number Priority date Publication date Assignee Title
CN201538188U (zh) * 2009-08-10 2010-08-04 陈健辉 具镂刻图样的皮革与饰片的结合结构
CN103862620A (zh) * 2014-03-19 2014-06-18 林云 一种天然木皮模内复合注塑构件及其制作方法
CN104827678A (zh) * 2015-06-01 2015-08-12 文峰 自然纤维片材热固性制作方法、片材和手机壳的制作方法
CN107053933A (zh) * 2017-05-24 2017-08-18 杨桃 一种mach风格的皮具及制作工艺
CN206433049U (zh) * 2017-02-10 2017-08-22 葛继卿 一种tpu与皮革复合手机保护壳

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CN103862620A (zh) * 2014-03-19 2014-06-18 林云 一种天然木皮模内复合注塑构件及其制作方法
CN104827678A (zh) * 2015-06-01 2015-08-12 文峰 自然纤维片材热固性制作方法、片材和手机壳的制作方法
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