CN101462338B - 模制品的制造方法 - Google Patents

模制品的制造方法 Download PDF

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Publication number
CN101462338B
CN101462338B CN2007102033438A CN200710203343A CN101462338B CN 101462338 B CN101462338 B CN 101462338B CN 2007102033438 A CN2007102033438 A CN 2007102033438A CN 200710203343 A CN200710203343 A CN 200710203343A CN 101462338 B CN101462338 B CN 101462338B
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soft layer
mechanograph
semi
die
finished product
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CN101462338A (zh
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吴焜灿
田力维
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Shenzhen Futaihong Precision Industry Co Ltd
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Shenzhen Futaihong Precision Industry Co Ltd
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Priority to CN2007102033438A priority Critical patent/CN101462338B/zh
Priority to US12/168,236 priority patent/US20090160101A1/en
Priority to JP2008289994A priority patent/JP2009149062A/ja
Priority to EP08254032A priority patent/EP2072212A1/en
Publication of CN101462338A publication Critical patent/CN101462338A/zh
Priority to US12/687,198 priority patent/US20100109191A1/en
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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
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/0055—Shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/10—Means for treating work or cutting member to facilitate cutting by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F2210/00—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products
    • B26F2210/06—Trimming plastic mouldings
    • 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
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/0055—Shaping
    • B29C2045/0058—Shaping removing material
    • 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
    • B29C45/14311—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 using means for bonding the coating to the articles
    • B29C2045/14327—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 using means for bonding the coating to the articles anchoring by forcing the material to pass through a hole in the article
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • 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
    • B29C45/14311—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 using means for bonding the coating to the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/08—Leather
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2713/00—Use of textile products or fabrics for preformed parts, e.g. for inserts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

本发明关于一种模制品的制造方法，其包括如下步骤：提供一软质层；提供一注射模具，该注射模具包括一母模及一与该母模配合的一公模；将所述软质层设置在公模与母模之间；将该母模与该公模合模，由母模与该公模围成一模腔，所述软质层贴合在该公模的一侧；将熔融的注射成型的材料注射于该模腔内以形成一基体，该熔融的注射成型的材料推动所述软质层向该母模一侧移动，当该熔融的注射成型的材料将所述模腔充填满时，该软质层贴合在该母模上，同时该注射成型的材料与所述软质层一体结合形成一所述基体与软质层结合的半成品，同时该半成品边缘形成多余的软质层；开模取出该半成品；采用冲切的方式切除所述半成品边缘多余的软质层，获得所述模制品。

Description

模制品的制造方法
技术领域
本发明涉及一种模制品的制造方法，尤其涉及一种具有皮革或织物或布表面的模制品的制造方法。
背景技术
随着移动通讯技术的发展，各式各样的电子装置如移动电话等竞相涌现，令消费者可随时随地充分享受移动技术带来的种种便利，这些电子装置壳体的美观程度及触觉效果也愈来愈受到人们的关注与重视。
壳体是电子装置的主要零组件之一，其广泛应用于电话、计算机、游戏机等电子装置上。由于塑料材料本身具有质轻、成本低、加工技术相对简单、抗腐蚀等诸多优点，所以大多数电子装置都采用塑料壳体。
为进一步使壳体具有良好的触感，现有技术中采用了一由皮革、织物等为材料的软质层设置在该壳体的最外层，该软质层通过一黏胶层与塑料材料紧密结合以制造出具有良好手感的壳体。一般地，在制造该壳体的过程中，需先将该软质层剪切成符合壳体尺寸的大小，然后在皮革或织物的一表面印刷或粘贴一粘接层(如胶水或热熔胶膜)，再进行注射成型，通过所述粘接层来实现皮革或织物与塑料基体紧密结合以形成电子装置的壳体。但是该制造方法不仅复杂，增加了制造工序和加工材料，使电子产品壳体的制造成本大大提高，而且在注射成型前便将软质层剪切为一与成型后的壳体大小相当的尺寸，在注射成型时，该软质层会因为在模内定位不稳，或有注射材料对该软质层的冲击力使得软质层在模具中的位置偏移。成型完成后，软质层不能正好覆盖于壳体上的预定位置，造成不良品的出现。
发明内容
鉴于以上缺点，有必要提供一种减少加工工序及加工材料、降低成本、提高成型良率的模制品的制造方法。
一种模制品的制造方法，其包括如下步骤：
提供一软质层，该软质层为皮革、织物及布中的任一种；
提供一注射模具，该注射模具包括一母模及一与该母模配合的一公模，该母模开设有一模穴，该公模设置有一凸起，一流道贯穿该凸起及该公模；
将所述软质层贴合在与公模相对的母模的表面上；
将该母模与该公模合模，该软质层被凸起顶入模穴中并贴合在该公模的一侧，同时由母模与该公模围成一模腔；
将熔融的注射成型的材料注射于该模腔内以形成一基体，该熔融的注射成型的材料推动所述软质层向该母模一侧移动，当该熔融的注射成型的材料将所述模腔充填满时，该软质层贴合在该母模上，同时该注射成型的材料与所述软质层一体结合形成一所述基体与软质层结合的半成品，同时该半成品边缘形成多余的软质层；
开模取出该半成品；
采用冲切的方式切除所述半成品边缘多余的软质层，获得所述模制品。
与现有技术相比，本发明模制品的制造方法利用加热的冲切刀具对该半成品边缘多余的软质层进行切割时，高温的冲切刀具可将该模制品的边缘的软质层的细微结构熔化，从而形成光滑平整边缘。同时，在注射成型时，软质层的尺寸大于模制品的尺寸，使得即使软质层由于注射材料的冲击而发生偏移，仍能保证软质层可覆盖于模制品的预定位置，从而减少了因软质层发生偏移时，模制品的预定位置未完全被软质层覆盖而产生良率下降的情况。
附图说明
图1是本发明较佳实施例模制品剖视分解示意图；
图2是本发明较佳实施例模制品的软质层贴合于母模上的示意图；
图3是本发明较佳实施例模制品的软质层放入母模时，公模与母模合模时的示意图；
图4是图3注入熔融的注塑树脂后，成型该模制品的半成品示意图；
图5是冲切本发明较佳实施例模制品的半成品的示意图。
具体实施方式
请参阅图1，本发明模制品10，包括一软质层12及一基体14。该软质层12为皮革或织物或布制成，如天然皮革、人造皮革、棉织物、纤维织物、毛织物，塑料织物或尼龙布等。本较佳实施方式的软质层12为人造皮革、棉织物或尼龙布。该软质层12具有一与基体14接合的接合面122，该接合面122为一粗糙面或毛面，其上具有若干毛面结构或微细结构。
该基体14为可注射成型的材料经过注射成型制成，该可注射成型的材料为塑料、橡胶或硅胶，其中塑料材料可为聚氯乙烯、聚对苯二甲酸乙二醇酯、丙烯睛-苯乙烯-丁二烯共聚合物(ABS，acrylonitrile-butadiene-styrene)、聚碳酸酯(PC，polycarbonate)、聚醯亚胺、液晶聚合物、聚醚醯亚胺、聚苯硫、聚飒、聚苯乙烯、乙二醇改性聚酯及聚丙烯聚合物中的一种或多种。该基体14优选为丙烯睛-苯乙烯-丁二烯共聚合物(ABS，acrylonitrile-butadiene-styrene)或聚碳酸酯(PC，polycarbonate)材料。所述丙烯睛-苯乙烯-丁二烯共聚合物及聚碳酸酯与皮革或织物具有良好的接合效果，特别是与人造皮革、棉织物或尼龙布的接合效果更佳。
基体14以注塑成型的方式成型于软质层12的接合面122，以此使基体14热熔接合于软质层12。接合面22的毛面结构或微细结构，增加了该软质层12与基体14的接合面积，进一步增强了两者的接合效果。
本发明较佳实施例的模制品10的制造方法，包括如下步骤：
提供一软质层12，该软质层12的尺寸大于待成型模制品10的尺寸。该软质层12由皮革、织物及布中的任一种制成，如天然皮革、人造皮革、棉织物、纤维织物、毛织物、塑料织物或尼龙等。该软质层12具有一接合面122，该接合面122为一粗糙面或毛面，接合面122具有多个微细结构；
提供一注射模具，请参阅图2所示，该注射模具包括一母模32及一与该母模32配合的一公模34，该母模32开设有一模穴322，该公模34设置有一凸起342，同时一流道3422贯穿该凸起342及该公模34。
将该软质层12贴合在与公模34相对的母模32的表面上，且软质层12的接合面122与该公模34相对。
请参阅图3，将该母模32与该公模34合模，该软质层12被凸起342顶入模穴322中并贴合在该公模34的一侧，同时由母模32与该公模34围成一模腔36。
请一并参阅图4及图5，熔融的注射成型的材料通过流道3422被注射于该模腔36内，该注射成型的材料可为丙烯睛-苯乙烯-丁二烯共聚合物或聚碳酸酯材料。该熔融的注射成型的材料推动贴合在该公模34一侧的软质层12向该母模32一侧移动，当注射成型的材料将所述模腔36充填满时，该模腔36内的软质层12贴合在该母模32上，此时由注射成型的材料成型成所述基体14，同时所述软质层12与该基体14一体成型为一具有软质层12的半成品20，该软质层12与该基体14的边缘结合处形成一该模制品10的外轮廓线202，该软质层12上位于该外轮廓线202以外的为待切除部。
然后，冷却所述注射模具后开模，将形成的半成品20取出。
最后，对该半成品20的软质层12的待切除部进行冲切，以形成该模制品10。其具体过程是：提供一冲切设备，其包括一固定治具80及一设置于该固定治具80正上方的冲切刀具90，该冲切刀具90为中空且形状与该外轮廓线202相同的刀具，即该冲切刀具90的形状及外围尺寸与该基体14的形状及外围尺寸相当。然后将该半成品20固定在该治具80上。再将该冲切刀具90加热，对正该半成品20的外轮廓线202。最后该冲切刀具90向下冲切，以将该半成品20的外轮廓线202以外的软质层12即所述待切除部切除，形成该模制品10。
利用加热的冲切刀具对该半成品边缘多余的软质层进行切割时，高温的冲切刀具可将该模制品的边缘的软质层的细微结构熔化，从而形成光滑平整边缘。同时，在注射成型时，软质层的尺寸大于模制品的尺寸，使得即使软质层由于注射材料的冲击而发生偏移，仍能保证软质层可覆盖于模制品的预定位置，从而减少了因软质层发生偏移时，模制品的预定位置未完全被软质层覆盖而产生良率下降的情况。
所述制造方法的步骤还可包括对软质层的接合面进行粗糙化处理的步骤，例如对软质层进行打磨处理或喷砂处理获得该微细结构或使该微细结构更粗糙的步骤。

Claims (10)

1.一种模制品的制造方法，其特征在于包括如下步骤：
提供一软质层，该软质层为皮革、织物及布中的任一种；
提供一注射模具，该注射模具包括一母模及一与该母模配合的一公模，该母模开设有一模穴，该公模设置有一凸起，一流道贯穿该凸起及该公模；
将所述软质层贴合在与公模相对的母模的表面上；
将该母模与该公模合模，该软质层被凸起顶入模穴中并贴合在该公模的一侧，同时由母模与该公模围成一模腔；
将熔融的注射成型的材料注射于该模腔内以形成一基体，该熔融的注射成型的材料推动所述软质层向该母模一侧移动，当该熔融的注射成型的材料将所述模腔充填满时，该软质层贴合在该母模上，同时该注射成型的材料与所述软质层一体结合形成一所述基体与软质层结合的半成品，同时该半成品边缘形成多余的软质层；
开模取出该半成品；
采用冲切的方式切除所述半成品边缘多余的软质层，获得所述模制品。
2.如权利要求1所述的模制品的制造方法，其特征在于：该冲切过程由一冲切设备完成。
3.如权利要求2所述的模制品的制造方法，其特征在于：该冲切包括如下步骤：提供一冲切设备，其包括一固定治具及一设置于该固定治具正上方的冲切刀具；将该半成品固定在该固定治具上；使所述冲切刀具朝向该半成品冲切，以将该半成品边缘多余的软质层一次切除，形成该模制品。
4.如权利要求3所述的模制品的制造方法，其特征在于：该冲切的步骤还包括在冲切之前将该冲切刀具加热的步骤。
5.如权利要求3所述的模制品的制造方法，其特征在于：该冲切刀具为中空，且形状及外围尺寸与该基体的形状及外围尺寸相当。
6.如权利要求1所述的模制品的制造方法，其特征在于：所述提供软质层的步骤还包括一对该软质层进行粗糙化处理的步骤，以使所述软质层具有一粗糙接合面，该基体嵌入该接合面内。
7.如权利要求6所述的模制品的制造方法，其特征在于：所述粗糙化处理的步骤为对软质层进行打磨处理或者喷砂处理。
8.如权利要求1所述的模制品的制造方法，其特征在于：该基体为塑料、橡胶或硅胶材料。
9.如权利要求1所述的模制品的制造方法，其特征在于：所述皮革选自天然皮革及人造皮革中的任一种。
10.如权利要求1所述的模制品的制造方法，其特征在于：所述织物选自毛织物、棉织物、纤维织物、塑料织物及尼龙布中的任一种。
CN2007102033438A 2007-12-21 2007-12-21 模制品的制造方法 Expired - Fee Related CN101462338B (zh)

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US12/168,236 US20090160101A1 (en) 2007-12-21 2008-07-07 Method for making multi-layered molded articles
JP2008289994A JP2009149062A (ja) 2007-12-21 2008-11-12 成形品の製造方法
EP08254032A EP2072212A1 (en) 2007-12-21 2008-12-17 Method for making multi-layered molded articles
US12/687,198 US20100109191A1 (en) 2007-12-21 2010-01-14 Method for making multi-layered molded articles

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