CN104884227B - 模制系统 - Google Patents

模制系统 Download PDF

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Publication number
CN104884227B
CN104884227B CN201380068618.5A CN201380068618A CN104884227B CN 104884227 B CN104884227 B CN 104884227B CN 201380068618 A CN201380068618 A CN 201380068618A CN 104884227 B CN104884227 B CN 104884227B
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mechanograph
molding
mould
temperature
parameter
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CN104884227A (zh
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维杰·戈毗昌德·潘万尼
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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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/42—Removing or ejecting moulded articles using means movable from outside the mould between mould parts, e.g. robots
    • B29C45/4225—Take-off members or carriers for the moulded articles, e.g. grippers
    • 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
    • B29C45/7686—Measuring, controlling or regulating the ejected articles, e.g. weight control
    • 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
    • B29C45/72—Heating or cooling
    • B29C45/7207—Heating or cooling of the moulded 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
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    • B29C45/17—Component parts, details or accessories; Auxiliary operations
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C45/78—Measuring, controlling or regulating of temperature
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/182—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by the machine tool function, e.g. thread cutting, cam making, tool direction control
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    • 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
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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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
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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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
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    • 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
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract

除其他以外，本发明涉及一种包括控制结构的模制系统(100)，所述模制系统包括配置成模制模制件(180)的模具(120)；用于控制模制结构操作的控制器(170)；以及用于观测模制品(180)的参数以控制模制系统(100)的视觉系统(174)。

Description

模制系统
技术领域
本文所公开的非限制性实施例通常涉及一种模制系统及所述模制系统的一种相关操作方法。
发明内容
根据本文所公开的一个方面，提供一种用于模制系统的控制结构，所述模制系统包括：视觉系统，其用于观测模制品的参数以及控制模制系统的操作。
依照本文所公开的另一方面，提供一种用于控制模制系统的方法，所述方法包括使用视觉系统来观测模制品的参数，并且参考模制品的参数对模制系统的操作进行控制。
在结合附图对特定非限制性实施例的以下说明进行回顾的情况下，非限制性实施例的这些方面和其他方面及特征现在对于本领域技术人员来说是显而易见的。
附图说明
参考附图，将更充分地理解本发明的非限制性实施例，其中：
图1示出根据非限制性实施例的模制系统的示意图；
图2示出根据另一非限制性实施例的模制系统的示意图；
附图未必按比例绘制，并可以通过双点划线、图形表示及局部视图进行说明。在某些情况下，可能省略对于理解实施例不必要的细节或使其他细节难以理解的细节。
具体实施方式
现在将详细地参照模制系统的各种非限制性实施例及其相关操作方法。应该认识到，考虑到本文所公开的非限制性实施例，其他非限制性实施例、改进以及等价物对于本领域普通技术人员是显而易见，并且这些变型都应当视为在附属的权利要求书的保护范围之内。
此外，本领域普通技术人员将认识到下文讨论的非限制性实施方式的特定结构和操作细节可以被完全修改或省略(即不重要的)。在其他情况下，没有详细描述公知的方法、过程和部件。
引言：
在模制品离开模制系统(即模制系统的下游)之后，存在多种检查模制品参数的方法与装置，然而这是事后方法，并且浪费时间。在对模制工艺进行调整之前，可能存在大量有缺陷的模制品。
本发明公开一种具有整合视觉系统的模制系统，通过所述视觉系统可观测在此进行模制的模制品的选定参数，用于控制所述模制系统的操作。
模制参数可以包括例如，模制品的一个或多个选定尺寸或者其温度。目前，没有在模制系统内(即在模制品离开机器之前)测量模制品的尺寸并且使用该信息调整和控制所述过程的装置。可在模制系统内的不同位置(例如，模制系统内的模具内或模制后调节设备的传送装置上)对模制参数进行检查。
此外，可以基于模制品的参数对模制工艺进行控制。例如，基于模制品在传送装置上时对其进行尺寸检查，模制系统的控制器可以检验模制工艺是否已调整到制造无缺陷模制品的状态。如果没有，应当调整必要的过程参数以确保制造出无缺陷的模制品。
通过基于从视觉系统接收的反馈来调整必要的过程参数，可以有效地控制所述过程以确保制造出无缺陷的模制品。
非限制性实施例：
参考图1，图中示出了根据非限制性实施例的模制系统100的示意图。模制系统大致包括：配置成对模制品180进行模制的模制结构；通过其控制模制结构操作的控制器170；配置成在模制品180从模具120上移出后对其进行热调节的模制后调节设备150；以及通过其观测模制品180的参数的视觉系统174。
模制结构包括配置成打开、闭合并且夹持模具120的模夹钳110；熔体制备装置140，其配置成制作并注入模制材料以在模具120中进行模制；模制材料分配器130，其配置成将模塑材料分配到模具120中。
对于本领域技术人员来说，模制结构的前述元件是公知的，并且在本文中对其不作详细描述。需要说明的是，模具120包括第一部分122和第二部分124，当两者闭合在一起时，限定出多个模制腔，在所述模制腔中，模制品(例如用于吹塑成容器的类型的预制件)是可模制的。第一部分122安装到模夹钳110的移动压板114。第二部分124安装到模制材料分配器130，该模制材料分配器130进而安装在模夹钳110的固定压板116上。在操作中，第一部分122相对于第二部分作往复运动，以通过移动压板114和固定压板116间的相对运动来打开和闭合模具120。模制材料制备装置140配置成制作(例如熔体)模制材料(未示出)并且通过熔体分配器130将模制材料注入到模具120的多个模制腔中。
模制后调节设备150包括取回装置158，其配置成在该过程中将模制品180从模具120取回并对模制品180进行热调节；辅助装置154，其配置成当模制品180在取回装置158中时对其进行热调节；空气调节机152，其配置成在使用中向辅助装置154供给热调节的空气，从而热调节模制品180；以及传送装置162，其配置成从辅助装置154接收模制品180以将该模制品传送到模制系统100的外部。
模制后调节设备150的前述元件对于本领域技术人员来说是公知的，并且在本文中对其不作详细描述。需要说明的是，取回装置158包括一组保持器160，在其中从模具120接收模制品180。在操作中，当从模具120进行传送模制品180时，模制品180在保持器160中被冷却。辅助装置154包括一组销156，在模制品180仍保留在取回装置158的保持器160中时，处理的空气可以从这组销排出以冷却模制品180的内部区域。照此，辅助装置154连接到在预定温度和流速下向其提供空气的空气调节机152。一旦模制品冷却到足以释放，就将其排出到传送装置162上以传送离开模制系统100。模制品180可以借助在模制系统的区域内的空气循环在传送装置162上继续冷却一段时间，所述时间相当于从模制系统传送该模制品所花费的时间。
视觉系统是已知的装置，因此在此不对其结构和操作进行描述。需要注意的是，视觉系统174包括通过其观测所关注模制品180的参数的一个或多个照相机175。视觉系统174还可包括控制器171，以执行对从照相机接收到的信息进行处理的步骤。可选地，视觉系统174的控制结构可在模制系统100的控制器170内实施。无论怎样，视觉系统174最终通过任何适宜装置连接到控制器170，从而与控制器170通讯模制品180的参数。视觉系统174的照相机175可定位成在模具(从顶部、底部和/或侧部)中或者在模制后调节设备150中的任何位置检测模制品180。例如，如图所示，视觉系统174可定位成当模制品180在传送装置162上时对其进行检测。在又一示例中，如参考图2所示，视觉系统174可定位成当模制品180在模具120上时对其进行检测。
如之前所提，控制器170可配置成参照模制品180的参数来控制模制结构。在此非限制性实施例中，可基于模制品180的参数来控制模夹钳110、熔体制备装置140、模制材料分配器130、取回装置158、辅助装置154、空气调节机152以及传送装置162中的一个或多个。
例如，控制器170可配置成基于模制品180的不在预定界限中的参数(例如，温度)来控制(通过控制与其相关联的驱动器164)传送装置162的速度。更具体地说，控制器170可配制成：如果温度过高可使传送装置162降速，而如果温度过低则使传送装置162加速。
在另一示例中，控制器170可配置成基于模制品180的参数(例如，温度)控制空气调节机的操作参数(例如流速、湿度、温度)。更具体地说，控制器170可配制成：如果温度过高则增大空气的流速，而如果温度过低则减小空气的流速。
在另一示例中，控制器170可配置成基于模制品180的参数来控制模制材料分配器130的操作参数。典型地，当注塑成型操作完成时且在模制品被排出之前，并不感测模制品的温度。因此，我们有可能使用视觉系统174来克服这些限制条件。机器视觉系统可以在模制品被排出之前测量这些制品的参数(例如温度)，并且将信息发送给控制器170。
基于所述反馈，控制器170可发送指令以控制模制材料分配器130。例如，所述控制器可控制其中的阀浇口(未示出)来调节熔体平衡。所述控制器还可发送反馈给热流道控制器(未示出)来调节温度设定。控制器还能发送指令给模具120内的冷却回路以调节模具冷却温度。
通过基于从视觉系统174接收的反馈调整必要的过程参数，可以有效地控制所述过程以确保基本上无缺陷的模制品。
在另一个示例中，视觉系统174可配置成与选定的标准相比，判定模制中的模制品的颜色以确定该颜色是否在预定的规格内。如果存在差异，控制器170可相应地控制调色机141(图2)。
在另一个示例中，视觉系统174可配置成感测模具120中是否存在模制品并相应地控制调整或停止该模制系统100(即模具保护)。
要注意的是，前面已经概述了一些较相关的非限制性实施例。本领域技术人员将明白，可实现对所公开的非限制性实施例的修改，而不脱离其本质和范围。因此，所述的非限制性实施例应该被认为仅仅是描述一些更突出的特征和应用。通过以不同方式应用非限制性实施例或以本领域技术人员已知的方式修改该非限制性实施例，可实现其他的有益结果。在此申明混合和配合各种非限制性实施例之间的特征、元素和/或作用是被许可的。所以本领域技术人员从本公开中了解，除非上面明白禁止，一个实施例中的特征、元素和/或作用是可被适当地合并到另一实施例里。虽然对于特定的装置和方法进行了说明，但是其目的和概念适合于并且可用于其他的装置和应用。

Claims (7)

1.一种与模制系统(100)一起使用的控制结构，包括：
视觉系统(174)，其配置成观测由所述模制系统(100)模制的模制品(180)的参数，用于控制所述模制系统的操作；
所述视觉系统(174)包括一个或多个照相机(175)，其配置成将所述模制品(180)的观测参数提供到与所述视觉系统(174)相关联的控制器(171)和/或与所述模制系统(100)相关联的控制器(170)，其中，所述控制器(170，171)中的一者或两者配置成参照所述模制品(180)的参数控制所述模制系统(100)的操作；
所述模制系统(100)包括以下中的一个或多个：
模夹钳(110)，其被配置成打开、闭合并夹持模具(120)，在所述模具中，所述模制品(180)是可模塑的；
熔体制备装置(140)，其被配置成制备并注入模制材料以在所述模具(120)中进行模制；以及
模制材料分配器(130)，其被配置成将所述模制材料分配至所述模具(120)；
模制材料调色机(141)；以及
模制后调节设备(150)，其包括以下中的一个或多个：
取回装置(158)，其被配置成从所述模具(120)取回所述模制品(180)并且热调节所述模制品(180)；
辅助装置(154)，其被配置为当所述模制品(180)在所述取回装置(158)中对其进行热调节；
空气调节机(152)，其被配置为在使用中将热调节的空气供给到所述辅助装置(154)以热调节所述模制品(180)；以及
传送装置(162)，其被配置为从所述辅助装置(154)接收所述模制品(180)以将其传送到所述模制系统(100)的外部；
其中，所述控制器(170)配置为基于所述模制品(180)的温度对所述空气调节机(152)的操作参数进行控制。
2.根据权利要求1所述的控制结构，其中：
其中所述空气调节机的所述操作参数是空气的流速。
3.根据权利要求2所述的控制结构，其中：
所述控制器(170)被配置成：在所述温度过高时增加空气流速，并且在所述温度过低时减小空气流速。
4.一种用于控制模制系统(100)的操作的方法，包括：
使用视觉系统(174)观测在所述模制系统(100)中模制的模制品(180)的参数；
参考所述模制品(180)的所述参数控制所述模制系统(100)；
所述模制品(180)的参数是下述其中之一：
选定尺寸；
温度；
颜色；和/或
存在或不存在；
所述模制系统(100)包括：
模夹钳(110)，其配置成打开、闭合并且夹持模具(120)；
熔体制备装置(140)，其配置成制作并注入模制材料以在所述模具(120)中进行模制；以及
模制材料分配器(130)，其配置成将所述模制材料分配到所述模具(120)；
模制材料调色机(141)，其用于控制要模制的所述模制材料的颜色；
所述模制后调节设备(150)包括：
取回装置(158)，其配置成从所述模具(120)取回所述模制品(180)并热调节所述模制品(180)；
辅助装置(154)，其配置成在所述模制品(180)在所述取回装置(158)中时热调节所述模制品(180)；
空气调节机(152)，其配置成在使用时将热调节的空气供给到所述辅助装置(154)以用于热调节所述模制品(180)；和
传送装置(162)，其配置成从所述辅助装置(154)接收所述模制品(180)以用于将其传送到所述模制系统(100)外部；
其中，所述的参考所述模制品(180)的所述参数控制所述模制结构的步骤包括：基于模制品(180)的温度来控制所述空气调节机(152)的操作参数。
5.根据权利要求4所述的方法，其中：
在所述模制品(180)位于以下装置之一中时，通过对其检查来执行所述的使用所述视觉系统(174)观测所述模制品(180)的参数的步骤，所述装置为：
所述模制系统(100)的模具(120)，在所述模具中对所述模制品(180)进行模制；和
所述模制系统(100)的模制后调节设备(150)，在去除所述模具后，所述模制品(180)在所述模制后调节设备内进行热调节。
6.根据权利要求4所述的方法，其中：
其中所述视觉系统(174)配置成：当所述模制品(180)在所述传送装置(162)上时对其进行检查。
7.根据权利要求4所述的方法，其中：
所述空气调节机(152)的操作参数是所述空气的流速，并且所述的参考所述模制品(180)的温度控制所述空气调节机(152)的步骤包括：
确定所述模制品(180)的温度是否在事先确定的界限之内；并且
在所述温度过高时，增加所述流速，并且在温度过低时，减少所述流速。
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