CN106170380B - 模具堆叠 - Google Patents

模具堆叠 Download PDF

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CN106170380B
CN106170380B CN201480031521.1A CN201480031521A CN106170380B CN 106170380 B CN106170380 B CN 106170380B CN 201480031521 A CN201480031521 A CN 201480031521A CN 106170380 B CN106170380 B CN 106170380B
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core body
molding
pressure
cavity
inserts
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CN106170380A (zh
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桑·塞巴斯蒂安·源黄
让-克里斯托夫·维茨
拉尔夫·瓦尔特·菲施
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Husky Injection Molding Systems Ltd
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Husky Injection Molding Systems Ltd
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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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/06—Making preforms by moulding the material
    • B29B11/08—Injection moulding
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/261—Moulds having tubular mould cavities
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2673—Moulds with exchangeable mould parts, e.g. cassette moulds
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/76006—Pressure
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76177—Location of measurement
    • B29C2945/76254—Mould
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76177—Location of measurement
    • B29C2945/76254—Mould
    • B29C2945/76257—Mould cavity
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76177—Location of measurement
    • B29C2945/76254—Mould
    • B29C2945/76257—Mould cavity
    • B29C2945/7626—Mould cavity cavity walls
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76177—Location of measurement
    • B29C2945/76254—Mould
    • B29C2945/76267—Mould non-cavity forming parts
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76344—Phase or stage of measurement
    • B29C2945/76381—Injection
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76451—Measurement means
    • B29C2945/76454—Electrical, e.g. thermocouples
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76451—Measurement means
    • B29C2945/76481—Strain gauges
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76498—Pressure
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76531—Temperature
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76655—Location of control
    • B29C2945/76732—Mould
    • B29C2945/76752—Mould runners, nozzles
    • B29C2945/76755—Mould runners, nozzles nozzles
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/003—PET, i.e. poylethylene terephthalate
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/253—Preform
    • B29K2105/258—Tubular

Landscapes

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

Abstract

本发明提供了一种模具堆叠(100)。所述模具堆叠(100)包括芯体嵌件组件(102)，用于限定待模制的模制物件的内部。所述芯体嵌件组件(102)包括传感器组件(120)，传感器组件(120)配置成采用所述芯体嵌件组件(102)的整个有效表面来测量模内压力。

Description

模具堆叠
技术领域
本发明总体上涉及注塑模制系统。更具体地，本发明涉及一种模具堆叠。
背景技术
模制是一种可借助其通过使用模制系统由模制材料形成模制物件的工艺。可通过使用诸如注塑工艺等模制工艺形成各种模制物件。例如，可由聚对苯二甲酸乙二酯(PET)材料形成模制物件的一个实例是随后能够吹塑为饮料容器(诸如瓶子等)的预成形件。
典型的模制系统包含注塑单元、夹紧组件及模具组件。注塑单元可以是往复螺杆型或两级型。夹紧组件尤其包括框架、可移动压板、固定压板，以及用于使可移动压板移动并向设置在这两种压板之间的模具组件施加吨位的致动器。模具组件尤其包含冷半部和热半部。热半部通常与一个或多个腔体相关联(且因此本领域技术人员有时也将其称为“腔体半部”)，而冷半部通常与一个或多个芯体相关联(且因此本领域技术人员有时也将其称为“芯体半部”)。在使用中，一个或多个腔体与一个或多个芯体一起限定一个或多个模制腔。热半部还可与熔体分配系统(本领域技术人员有时也将其称为“热流道”)相关联，用于熔体分配。模具组件可与许多附加组件(诸如颈环、颈环滑动件、顶出器结构、耐磨垫等)相关联。
举例而言，PET材料的注塑模制涉及将PET材料(例如，PET颗粒、PEN粉末、PLA等)加热至均匀熔融状态，以及在压力下将如此熔融的PET材料注入一个或多个模制腔中，所述模制腔至少部分地由分别安装于模具组件的腔板和芯板上的前述一个或多个腔体和一个或多个芯体限定。将腔板和芯板推到一起，并通过夹持力保持在一起，该夹持力足以将腔板与芯板保持在一起，以抵抗所注入的PET材料的压力。模制腔具有的形状基本上对应于待模制的模制物件的最终冷却状态的形状。如此注入的PET材料然后冷却到足以使如此形成的模制物件从模具中顶出的温度。当冷却时，模制物件在模制腔内部收缩，且因此当迫使腔板与芯板分开时，模制物件倾向于保持与芯体相关联。因此，通过推动芯板远离腔板，模制物件可脱模，即从芯体件顶出。顶出结构已知辅助用于从芯体半部移除模制物件。顶出结构的示例包含脱模板、顶出器销等。
用于制作预成形件(和其它模制物件)的注塑模具通常包括一个或多个模制腔，用于接纳熔融树脂并且形成预成形件。为了增加模制组件的灵活性，可将可互换的嵌件插到腔板中的孔内。图1示出了现有技术的注塑模制机10的一部分。一个或多个模具腔12通常限定在形状互补、大致圆柱形的腔体嵌件14与芯体嵌件15之间，腔体嵌件14与芯体嵌件15布置在腔板16中限定的孔(未单独编号)内。模具腔12一般平行于合模动作的方向(即合模轴线)而对准。
对于具有带螺纹颈部的模制物件，开式颈环(未示出)与芯体嵌件15协作以产生颈部。通常在腔体嵌件14的端部处提供锥体(也未图示)以帮助对准颈环。
热流道组件18将熔融树脂流输送到一个或多个喷嘴组件20中的熔体通道19。浇口嵌件22安放在模具腔体嵌件14内。浇口嵌件22上的第一成型表面24限定接纳器以容置喷嘴组件20的尖端。浇口嵌件22上的第二成型表面26限定模具腔12的一部分。浇口嵌件22中设置浇口28，以在每个喷嘴组件20和每个模具腔12之间提供流体连通。浇口28通过阀销29打开或闭合。也可使用其它类型的门控，例如滑阀或热门控。
注入腔内的熔融树脂必须冷却以固化树脂，使得可从模具腔12中移除模制的预成形件。需要尽可能快地冷却预成型件，这样可移除预成型件，且以最短的时间延迟来启动下一个注塑循环。为此，通常在腔体嵌件14和浇口嵌件22中设置冷却通道30。冷却流体(诸如水)通过冷却通道30循环。
美国专利5,472,331教导了一种芯体销14，其用作力传感器来检测模具腔中的压力。这借助于应变计电桥50而实现。应变计测量在模制腔的增压期间施加在芯体销上的补偿力所得到的销的弹性变形。
美国专利公开2005/0236725教导了一种具有环形通道160的芯体153，在环形通道160内设置有环形的压电陶瓷嵌件161。传感器可以用于感测模具内的压力。
美国专利5,972,256教导了一种具有芯体尖端22的芯体销10。芯体销10进一步包括用于测量模内压力的应变计。当熔融材料进入腔体时，熔融材料轴向地推到芯体销22上。应变计对进入腔体的塑料的施加力做出线性响应。所感测的信息可以用于准确地控制注塑工艺。
美国专利申请2008/0085334教导了一种可安置在热流道歧管中的插塞，该插塞具有感测元件。响应于插塞感测的压力，可以调整加热器的温度或熔体的压力(见第0035段)。
美国专利7,258,536教导了各种传感器(包括压力传感器)，并响应于来自传感器的读数，控制工艺参数(包括加热器)。
美国专利5,176,859教导了压力传感器，以测量模内的腔体压力，并响应于测量值以控制夹紧力。
美国专利3,807,914教导了安装在模具内以测量模制腔压力的感测部件，当树脂流入模制腔内时，树脂抵靠顶出器销的端部，并在抵靠处施加压力。该压力反映模制腔中存在的树脂压力。顶出器销响应于压力而移动，并且该移动被感测以获得模制腔中树脂的压力读数。响应于该读数，控制算法控制加热部件以将模具腔中树脂的压力保持在预定水平。
美国专利申请2004/0142057教导了使用传感器测量腔内压力，以及使用控制压电致动器的控制单元来控制/调整腔体压力。
发明内容
根据本发明的第一广泛方面，提供了一种模具堆叠。模具堆叠包括芯体嵌件组件，该芯体嵌件组件用于限定待模制的模制物件的内部。芯体嵌件组件包括传感器组件，传感器组件配置成采用芯体嵌件组件的整个有效表面来测量模内压力。
根据本发明的另一广泛方面，提供了一种模具堆叠。模具堆叠包括芯体嵌件组件。芯体嵌件组件用于限定待模制的模制物件的内部。芯体嵌件组件包括芯体内部构件和芯体嵌件，芯体嵌件用于限定模制物件的一部分，并且芯体内部构件用于附接到芯板。芯体内部构件和芯体嵌件经由螺纹连接而耦接。
根据本发明的另一广泛方面，提供了一种操作模制设备(具有多个模制腔)的方法。该方法包括测量第一模制腔和第二模制腔的压力分布图；比较压力分布图；调整模制设备的运行参数以在所有模制腔内获得相同的压力分布图。
附图说明
图1示出了现有技术的注塑模制机的固定部分的横截面图；
图2示出了沿着根据本发明实施例实施的模具堆叠的操作轴线截取的横截面图。
具体实施方式
参考图2，示出了根据本发明的非限制实施例的模具堆叠100的一部分。在使用中，模具堆叠100包括与芯板104相关联的芯体嵌件组件102。在所述实施例中，芯体嵌件组件102包括芯体嵌件106。一般而言，芯体嵌件106的目的是限定模制腔108的一部分，并且更具体地，限定将在模制腔108内形成的预成型件(未示出)的内表面。芯体嵌件组件102的其它组件将很快描述。
在使用中，还在腔板(未示出)内限定的孔(未示出)内设置了腔体嵌件110。一般而言，腔体嵌件110的目的是限定模制腔108的一部分，并且更具体地，限定将在模制腔108内形成的预成型件(未示出)的主体部分的外表面。在图2的具体图示内，还提供了浇口嵌件112。浇口嵌件112提供(i)具有热流道喷嘴(未示出)的接口(未单独编号)，以及(ii)用于热流道喷嘴(未示出)和模制腔108之间塑料材料流动的接口(未示出，但也称为“浇口”)。
在图2的图示中，提供了一种对开式模具嵌件114，有时也被本领域技术人员称为“颈环”或脱模环。两个对开式模具嵌件116形成对开式模具嵌件对。对开式模具嵌件114的功能是本领域的技术人员所熟知的，并且因此在此无需再详细讨论。然而，一般而言，对开式模具嵌件114执行两个功能：(a)形成在模制腔108中待模制的模制物件的某些部分，以及(b)帮助模制物件从芯体嵌件106剥离出。为此，对开式模具嵌件114的每个模具嵌件116耦接到相应的滑动件118上以此进行驱动，两者都在相向模具堆叠100的操作轴线的轴向和横向方向中。
在图2的非限制性图示中，芯体嵌件组件102、腔体嵌件110、浇口嵌件112和对开式模具嵌件114在所谓的“模具闭合位置”中示出。在模具闭合位置内，芯体嵌件组件102的一部分、腔体嵌件110的一部分、浇口嵌件112的一部分，以及对开式模具嵌件114的每一个的一部分均予以配合，以限定模制腔108。
模制腔108的形状对应于在其内待模制的模制物件的形状。在图1中所示的特定非限制性实施例内，待模制的模制物件包括预成型件，其随后能够被吹塑成最终定形物件，诸如饮料容器。然而，应该明确理解，模制物件可以具有任何其它形状和/或结构。相应地，应当清楚的是，本发明的实施例的教导适用于模具堆叠100和并入模具堆叠100内的模制系统，其可以配置成生产不同类型的模制物件，诸如但不限于预成型件、薄壁容器、帽盖等。
返回到芯体组件102的描述，根据本发明的实施例，芯体组件102包括附接到芯体嵌件106的芯体内部构件122。在所述的特定实施例中，芯体内部构件122经由螺纹耦接器105附接到芯体嵌件106。芯体内部构件122耦接到芯板104。要注意的是，与本发明的此实施例相关联的特定技术效果是使芯体嵌件106从芯体内部构件122快速脱离的能力。另一个特定技术效果可以包括使芯体组件102相对于芯板104预居中的能力。要注意，在本发明的可替代实施例中，芯体内部构件122和芯体嵌件106可以经由两者之间的不同耦接而实现或者可以由一体式结构制成。
还提供了一种传感器组件120。一般而言，传感器组件120的目的是在模制周期的适当部分期间(例如注塑、保持等)，随着模制腔108填充模制材料，对模制腔108内的模制材料压力进行测量。
传感器组件120配置成测量动态形式的压力，也就是说，不是在模制周期的某一个时间点期间对模内压力进行测量，芯体组件102配置成在模制周期的整个时间长度期间对模内的模制材料压力进行测量。此外，芯体组件102配置成采用芯体嵌件106的整个“有效表面”(即积极参与模制过程的芯体嵌件106的表面，即形成模制物件并因此“接触”模制材料)来测量模内的模制材料压力，与现有技术方案的单点测量相反。采用芯体嵌件106的有效表面不可避免地导致以下事实：芯体嵌件106在模制期间所有效经受的所有工艺参数将反映到传感器组件120由此获得的测量值中。一般而言，芯体组件102配置成测量注塑循环期间芯体组件102所经受的整个力。这些可以包括造成注塑压力、保持压力、阀杆闭合、芯体组件102上模制物件收缩的一些或全部的力。芯体组件102可以进一步配置成对造成牵引(诸如但不限于模制物件从芯体组件102脱离的顶出力、模制物件在模制腔108内的粘附等的一些或全部)的整体力进行测量。
在图2所示的实施例中，传感器组件120夹在内部构件122和芯体嵌件106之间。附接到芯体内部构件122的是测压单元124。测压单元124可以实现为用于将力转换为电信号的任何传感器。还提供了测压单元盖罩125，其配置成物理地包覆测压单元124的一部分。一般而言，测压单元盖罩125的目的是通过测压单元盖罩125的螺钉(未示出)施加一定的力(诸如预载荷)而用于校准测压单元124。另外(或可替代地)，测压单元盖罩125可以帮助调整测压单元124的精度。例如，通过测压单元盖罩124的预载荷，我们减少传感器组件120中潜在地存在的任何间隙，并且因此负荷单元124将能够提供更精确的读数。另外(或可替代地)，测压单元盖罩125可以帮助增加工作范围。测压单元盖罩125的提供允许了解到不仅在注塑期间向芯体106上施加的压缩力，而且了解到脱模力，即在模制物件从芯体106移除期间由芯体经受的牵引。在使用中，当模制材料被注入模制腔中时，或者当如此注入的模制材料在模制腔内冷却时，在模制材料作用于芯体组件102的整个有效表面时，传感器组件120有效地测量模内的模制材料压力。
鉴于参考图2并根据本发明的非限制性实施例而在上文描述的架构，模制系统的操作方法包括(至少在模制周期的一部分期间)：(i)了解采用芯体嵌件组件102的整个有效表面的模内压力，以及(ii)基于所测量的模内压力，对容纳模制堆叠100的模制系统的至少一个运行参数进行调整。应当明确地理解，在本发明的一些实施例中，可以了解每个模制腔的模内压力。在其它非限制性实施例中，可以了解模制腔子组的模内的模制材料压力。
根据本发明的实施例，可以构想所调整的参数可以包括以下中的一个或多个：
■热流道阀杆打开和闭合；
■阀杆的压力或力或速度；
■熔体温度；
■顶出速度。
理所当然，其它实施例进一步调整参数是可能的。
在本发明的一个示例性实施例中，其中如果确定熔体压力超出预定义的阈值，则该方法设想通过增加或减小该熔体压力来调整熔体温度。一般而言，如果确定出熔体压力低于预定义的阈值，则可以采取以下补救措施中的一个或多个：
■与同一注塑内的其它模制腔相比，模制腔108经受较低的模内压力，通过与所考虑的模制腔108相关联的热流道喷嘴的阀杆位置，通过打开熔体通道来增加模制材料进入模制腔108的流量。
■与同一注塑内的其它模制腔相比，模制腔108经受较高的模内压力，通过与所考虑的模制腔108相关联的热流道喷嘴的阀杆位置，通过限制熔体通道来减少模制材料进入模制腔108的流量。与其它腔体相比，增加模制腔108的喷嘴温度经受增加的流量，以便及时获得腔体到腔体的相同注塑分布图。
■与其它腔体相比，降低经受限制流量的模制腔108的喷嘴温度，以便及时获得腔体到腔体的相同注塑分布图。
即使上述示例已采用调整(增加或降低)与给定的喷嘴相关联的温度，但是应该了解到，在本发明的可替代实施例中，可以在喷嘴的上游水平处(诸如在与需要控制的给定喷嘴相关联的热流道的一部分中)对温度进行调整(增加或降低)。在本发明的其它实施例中，相同的分析可以适于保持压力的调节。
因此，鉴于上述架构，可以对具有多个模制腔的模制设备执行一种操作方法。该方法包括测量用于每个模制腔的压力分布图；比较压力分布图；调整模制设备的运行参数，以在所有模制腔内获得相同的压力分布图。根据本发明的各种实施例，通过传感器组件120测量熔融材料施加在芯体组件102上的力，可以对每个或仅仅一些模制腔108的熔体压力分布图进行比较。如果曲线分布图(即测压单元124上的力读数)不相同(指示不同模制腔108中经受的模制压力不同)，则可以采取补救措施。如所解释的，补救措施可以通过调节喷嘴阀杆(打开位置、闭合位置，或半闭合位置)来调节模制材料进入模制腔108的流量，通过调节熔体分配网络(也称为热流道)的一部分或热流道喷嘴的温度来调节模制材料等的流量，来平衡模制材料的流量。
本发明的实施例的一些技术效果可以包括以下的一些或全部。例如，对不同模制腔的过程曲线进行对比并对各个过程分布图进行调整的能力，允许获得用于模制腔的基本上相同的注塑条件，其反过来可以导致滴与滴之间的更好的部件质量的可重复性、滴与滴之间的较少重量偏差、更快的循环时间等。还构想可以避免制造出缺陷部件，或至少可以检测出并去除缺陷部件。本发明的实施例的另一技术效果可以包括每次注塑之间的更高可重复性，以及不同模制腔108中所制的模制物件的更高可重复性。本发明的实施例的另一技术效果可以包括在模制周期期间(即实时)检测潜在问题，或观察生产质量的偏离情况。本发明的实施例的另一技术效果可以包括基于所了解的脱模力(例如如果芯体106需要整修(通过采用喷砂、抛丸等方式进行重新纹理化))，来了解芯体106的纹理所需的任何修改。应该明确理解，在本发明的每一个和所有的实施例和实施方式中，并非每一个和所有的优势都必须了解和实现。
本发明的实施例的另一个技术效果可以包括了解由于树脂条件变化(比如干燥)或树脂供给变化(比如经受不同批次的树脂和IV号)而造成的树脂性质的任何改变。
实施例的描述提供了本发明的示例，且这些示例并不限制本发明的范围。应理解，本发明的范围由权利要求书限制。上文描述的概念可适合于特定条件和/或功能，且可进一步延伸到属于本发明范围内的多种其它应用。在这样描述了示例性实施例之后，在不脱离所描述的概念的情况下，显而易见的是，修改和提高是可能的。因此，借助于专利证书来保护的内容仅由所附权利要求书的范围限制。

Claims (3)

1.一种模具堆叠(100)，其包括：
芯体嵌件组件(102)，所述芯体嵌件组件(102)用于限定待模制的模制物件的内部，所述芯体嵌件组件(102)包括传感器组件(120)，所述传感器组件(120)配置成采用所述芯体嵌件组件(102)的整个有效表面来测量模内压力；
所述芯体嵌件组件(102)包括芯体内部构件(122)和芯体嵌件(106)，所述芯体嵌件(106)用于限定模制物件的一部分，并且所述芯体内部构件(122)用于附接到芯板；
所述传感器组件(120)包括所述测压单元(124)和所述测压单元盖罩(125)，所述测压单元(124)夹在所述芯体内部构件(122)和所述芯体嵌件(106)之间，附接到所述芯体内部构件(122)，所述测压单元盖罩(125)配置成物理地包覆所述测压单元(124)的一部分。
2.根据权利要求1所述的模具堆叠(100)，其中所述芯体内部构件(122)和所述芯体嵌件(106)经由螺纹连接而耦接。
3.根据权利要求1所述的模具堆叠(100)，其中所述测压单元(124)包括压力传感器。
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