CN101522385A - 改进的塑料预成型件 - Google Patents

改进的塑料预成型件 Download PDF

Info

Publication number
CN101522385A
CN101522385A CNA2007800368257A CN200780036825A CN101522385A CN 101522385 A CN101522385 A CN 101522385A CN A2007800368257 A CNA2007800368257 A CN A2007800368257A CN 200780036825 A CN200780036825 A CN 200780036825A CN 101522385 A CN101522385 A CN 101522385A
Authority
CN
China
Prior art keywords
preformed member
annex
bottle
preformed
blind end
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.)
Granted
Application number
CNA2007800368257A
Other languages
English (en)
Other versions
CN101522385B (zh
Inventor
G·帕格利亚奇
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.)
Concordia Dev S R L
Original Assignee
Concordia Dev S R L
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Concordia Dev S R L filed Critical Concordia Dev S R L
Publication of CN101522385A publication Critical patent/CN101522385A/zh
Application granted granted Critical
Publication of CN101522385B publication Critical patent/CN101522385B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B29B11/14—Making preforms characterised by structure or composition
    • 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
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • 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
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods
    • 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
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/786—Temperature
    • B29C2049/7867—Temperature of the heating or cooling means
    • B29C2049/78675—Temperature of the heating or cooling means of the heating means
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • 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
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0772—Closure retaining means
    • B29C2949/0773—Threads
    • 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
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0777—Tamper-evident band retaining ring
    • 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
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/078—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the bottom
    • 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
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
    • 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
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
    • 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
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
    • 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
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
    • 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
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • 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
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • 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
    • 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
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/16—Biaxial stretching during blow-moulding using pressure difference for pre-stretching, e.g. pre-blowing
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/783—Measuring, controlling or regulating blowing pressure
    • 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
    • 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)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

一种通过吹塑成型方法用于制造中空体的塑料材质的预成型件(1)，包括具有开放端(2)和封闭端(4)的基本上圆柱形的中心本体(3)，对应于所述封闭端(4)的中心区域提供一中空附属物(5)，其向预成型件(1)外突出，能够在内部容纳所述预成型件(1)拉伸杆的顶端部。中空附属物(5)和预成型件的封闭端(4)的保留侧部均可以是球形、锥形、椭圆形或抛物线形状。

Description

改进的塑料预成型件
技术领域
本发明涉及一种改进的预成型件，该预成型件通过吹塑成型方法用于制造中空体、特别是任何种类和尺寸的瓶子。
背景技术
如本领域技术人员所熟知的，目前制造塑料材质的瓶或罐几乎全是通过2步法进行，该2步法包括制造和使用具有基本上圆柱形状的中空的、半成型的产品，准确的说是预成型件或雏形。该方法的第一步中空预成型件的制造是如此完成的，即以高度集中的方式，通过少数专业制造商完成，相对于最终成型的瓶子，所述预成型件具有较大的厚度和大约1∶2到1∶4的长径比。在该方法的第二步中，中空预成型件引入模具中，加热到完成所需软化的足够温度，通过将拉伸杆引入预成型件中拉伸到瓶子的最终长度，因此在加热和拉伸的预成型件中通过引入一种或多种压缩空气流进行吹塑，其中上述第二步通常不与液体罐装的包装在同一工厂中进行。
该制造系统允许显著的和多种的优点存在于整个制造链中，其对于本领域技术人员来说是公知的，因此不必在此重述，如前所述，其优点导致几乎在全球范围内普遍采用该制造系统以便获得中空体，特别是任何类型、形状和尺寸的瓶子。
特别是，发现上述方法尤其适合应用于透明塑料材料，例如PET(聚对苯二甲酸乙二醇酯)，其在吹塑过程中，经历这种结晶结构的取向以给予该瓶体特殊的安全机械性能，即使该材料具有特别小的最终厚度值。
精确地说，对于这种瓶子不断的寻找最优的制造方法，其目的在于减少塑料材料量，最终瓶体积不变，从而减少瓶子的最终成本。到目前这种寻找主要目的一方面在于成品瓶的形状改变(以便产生更好的形状稳定性)，另一方面在于调整不同的模制参数(预成型件的拉伸比率、加热温度、吹塑空气压力等)。
多年来基本上不变的仍然是预成型件的形状，该形状如前所述由一个中空圆柱体形成，具有恒定或可变的厚度，其开放端已经是瓶颈区域的最终形状，因此也提供与螺旋帽连接的必要的螺纹，并且绝大多数情况下其封闭端为半球形。
为了减少保留在成品瓶底部的中央区域中因此没有直接使用的塑料材料的量，已经建议并且部分使用具有非球形头的预成型件，特别是具有圆锥形、椭圆形或抛物线形状的头部。然而，在预成型件成型的过程中该类型的预成型件实际上具有一些优点的同时，由于增加了熔融塑料材料流动路径的流线，也使成型时间适当的减少(其实际上是注射到相应的预成型件封闭端的顶点)，并且由于成品瓶的材料分布并没有最终表现的与具有半球形头部的预成型件获得的瓶子有明显的不同，因而在减少预成型件重量方面得不到合适的结果。
发明内容
因此，本发明的目的在于提供一种改进的预成型件，其获得的瓶子的尺寸和机械特征相同，但相比目前使用的已知类型的预成型件具有显著减少的重量。
本发明的另一个目的在于提供一种改进的预成型件，通过这种改进的预成型件，有可能将瓶子重量的减少集中在相应的瓶底的中央区域。
根据本发明，通过具有限定在随附的权利要求1中的结构的预成型件达到该目标，本发明预成型件的更多结构限定在从属权利要求中。
本发明的进一步的结构和优点将在随后的优选实施例的说明和附图中变得更加明显，其中附图示出了根据本发明的改进的圆柱形预成型件的示意性侧视图。
如在附图中清楚看出的，根据本发明的预成型件1由于开放端2的形状、具有用于容纳和抵接瓶子的螺旋帽和肋部的公知方式、以及预成型件的本体3的细长圆柱形形状，从而具有完全的常规结构。
事实上，本发明的预成型件的革新之处完全依赖于封闭端的形状或预成型件的头部4，其对应中心区域形成轴向附件5，该附件适于与头部4的保留侧部径向延伸。所述头部4的保留侧部可以具有任何一种如上所述的公知形状并且优选具有半球形。
由于在模制步骤的开始时仅仅需要这种附件的内径足够大以便能够容纳位于其中的预成型件的拉伸杆的顶端部(没有示出)，因而附件5的形状和其尺寸没有特别的限制。在该实施例中，示出的附件5也具有半径为R的半球形形状，并且优选地，通过具有相同半径R的向外弯曲的凹表面，附件5与封闭端4的侧部径向延伸。
附件5的半径R和其整个高度h，相对于理论上完全半球形头部的顶端部的切向平面(在图中以虚线表示)，确定了本发明的预成型件的结构。R的最小值，R＝R最小，如上所述对应于附件5的内径，以便适于允许预成型件拉伸杆的紧配合引入；R的最大值，R＝R最大对应于D/2，其中D是预成型件的圆柱形中心区域3的直径。预成型件的总高度H是相等的，在R＝R最小时预成型件的重量减少的效果是最大的，但是当R＝R最大时效果是最小的、或更加正好的是零，即当本发明的预成型件的头部形状与常规模具的形状相匹配时，预成型件重量减少的效果是最小的，或更精确的说为零。
类似地观测附件5的高度h，因为显然—再次预成型件总体高度H相同，从值hmin＝0开始，高度h越高预成型件的重量减少最多，其中本发明的预成型件具有完全半球形头部的头部4的形状以便匹配常规的模具。
在上述可变的范围内，附属物5的尺寸和形状根据所需要的结果可以随意改变，例如为了将预成型件的重量损失集中相应于由同样的形成的瓶底的中心区域，或者为了其它的有时可变为有用的目的或便于不同的、个体使用。
由于本发明的预成型件具有上述描述的具体形状，因此获得比公知类型的具有相同厚度和高度的预成型件具有少的重量的预成型件的特别效果，这是因为本发明的预成型件的全部表面比相应的、常规的具有完全半球形头部和同等高度的预成型件明显具有较小的延伸的事实。因此可达到预成型件的的3-5％重量的减少，并且此外达到此种显著的结果无需丝毫改变预成型件的其它特征，特别是同样的轴拉伸率。拉伸杆可能要改变其终端以便适应附件5的内部形状，能够插入附件5中并且决定了本发明的预成型件的拉长，其相似于在具有相同全部高度H的半球形头部常规预成型件中发生的情况。此外拉伸动作是更加的平滑和均一的，因为基于附件5已经表现出一定的斜度以便用于变形的预成型件的形状的事实。
因此，本发明的预成型件取代了常规的预成型件而无需执行吹塑方法的新标准，从而以简单和直接的方式使得预成型件的重量显著的减少，并因此使得成品瓶的重量减少，从而达到本发明的第一个目的。通过合适的调整附件5的尺寸参数，另外可能将重量减少集中在相应的瓶底的中心区域，其中该瓶子是通过吹塑所述的预成型件获得的，因此也达到本发明的第二个目的。这个目的是特别重要的，因为其可改善瓶子的对撞击的机械抵抗力，消除、或显著的减少脆弱区域，在常规瓶子中该脆弱区域由瓶底的环带组成，其中在小厚度的外围区域和大厚度的中心区域之间是过渡区域。
本发明对同样的优选实施例进行了说明，但是应当清楚的是使用本发明原理的其它实施方式可不同于所述的实施例。因此本发明不被所述的实施例的特征所限制，其仅在附随的权利要求中进行界定。

Claims (8)

1、一种通过吹塑成型方法用于制造中空体的塑料材料的预成型件(1)，其中所述预成型件(1)包括基本上圆柱形的中心本体(3)，所述本体(3)具有开放端(2)和封闭端(4)，其特征在于，所述封闭端(4)具有在其中心区域向所述预成型件(1)的外部突出的中空的附件(5)。
2、根据权利要求1所述的预成型件，其中，所述中空本体是瓶子或罐，并且所述开放端(2)形成成品瓶或罐的颈部和帽的基座。
3、根据权利要求1或2所述的预成型件，其中，至少所述附件(5)的中心区域具有球形、椭圆形或抛物线形状。
4、根据权利要求3所述的预成型件，其中，所述附件(5)相对于预成型件(1)的所述封闭端(4)的保留侧部径向延伸。
5、根据权利要求4所述的预成型件，其中，所述附件(5)具有球形形状。
6、根据权利要求5所述的预成型件，其中，所述附件(5)具有的半径(R)等于向外凹的表面的半径，所述向外凹的表面将所述附件(5)连接到所述预成型件(1)的所述封闭端(4)的保留侧部。
7、根据权利要求5或6所述的预成型件，其中，与中心的所述附件(5)相邻的所述封闭端(4)的侧部具有球形、椭圆形或抛物线形状。
8、根据前述权利要求中任一项所述的预成型件，其中，中心的所述附件(5)具有一内部间隙，所述间隙至少足够容纳所述预成型件的拉伸杆的自由端。
CN200780036825.7A 2006-10-06 2007-10-03 改进的塑料预成型件 Expired - Fee Related CN101522385B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI2006A001922 2006-10-06
IT001922A ITMI20061922A1 (it) 2006-10-06 2006-10-06 Preforma di materiale plastico perfezionata.
PCT/IB2007/054015 WO2008041186A2 (en) 2006-10-06 2007-10-03 Plastic preform where closed end is provided with a hollow appendix

Publications (2)

Publication Number Publication Date
CN101522385A true CN101522385A (zh) 2009-09-02
CN101522385B CN101522385B (zh) 2014-07-30

Family

ID=39268876

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200780036825.7A Expired - Fee Related CN101522385B (zh) 2006-10-06 2007-10-03 改进的塑料预成型件

Country Status (20)

Country Link
US (1) US9492950B2 (zh)
EP (2) EP2439032A3 (zh)
JP (2) JP2010505653A (zh)
KR (1) KR101537824B1 (zh)
CN (1) CN101522385B (zh)
AR (1) AR063156A1 (zh)
AU (1) AU2007303824B2 (zh)
BR (1) BRPI0717797A2 (zh)
CA (1) CA2665331A1 (zh)
HK (1) HK1137385A1 (zh)
IL (1) IL197729A (zh)
IT (1) ITMI20061922A1 (zh)
MA (1) MA30818B1 (zh)
MX (1) MX346930B (zh)
RU (1) RU2469845C2 (zh)
TN (1) TN2009000121A1 (zh)
TW (1) TW200902294A (zh)
UA (1) UA96609C2 (zh)
WO (1) WO2008041186A2 (zh)
ZA (1) ZA200902874B (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101863328A (zh) * 2010-06-09 2010-10-20 上海紫江企业集团股份有限公司 一种易拉伸瓶坯
CN104718235A (zh) * 2012-08-31 2015-06-17 依云矿泉水股份有限公司 制造由fdca和二醇单体制成的瓶的方法和实施该方法的装置
US9849620B2 (en) 2014-03-21 2017-12-26 Husky Injection Molding Systems Ltd. Container preform

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20061922A1 (it) * 2006-10-06 2008-04-07 Gianfilippo Pagliacci Preforma di materiale plastico perfezionata.
DE102009030762B4 (de) * 2009-06-27 2015-12-31 Netstal-Maschinen Ag Verfahren und Vorrichtung zur Herstellung von Preformen mit Spezialgeometrien
ITMI20091782A1 (it) 2009-10-16 2010-01-15 Concordia Dev Srl Preforma di materiale plastico con rientranze formate sulla sua testa.
EP2316626A1 (en) * 2009-10-27 2011-05-04 La Seda De Barcelona S.A. Preform for making a blow-molded container and having a concave gate portion, injection mold stack and process for making the preform, process for making the container and container
US8828308B2 (en) * 2010-09-13 2014-09-09 Amcor Limited Hydroblow preform design
DE102012004613A1 (de) * 2012-02-24 2013-07-11 Mahir Aktas Verfahren und Vorrichtung zur Herstellung einer optimierten Bodenkontur von Preformen
ITMI20130115A1 (it) 2013-01-25 2014-07-26 Concordia Dev Srl Preforma di materiale plastico con estremita' chiusa alleggerita.
DE102013011315A1 (de) 2013-07-01 2015-01-08 Mahir Aktas Vorrichtung zur Herstellung von Vorformlingen sowie für die Blasformung von Behältern
PT3328604T (pt) * 2015-07-31 2020-12-15 Husky Injection Molding Systems Ltd Uma pré-forma, uma pilha de molde para produzir a pré-forma e um aparelho de manipulação de pré-forma para manipular a pré-forma
FR3058084B1 (fr) * 2016-10-27 2020-12-25 Oreal Preforme pour la fabrication d'un recipient par soufflage bi-etirage, et procede associe

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955697A (en) * 1970-09-14 1976-05-11 Valyi Emery I Multilayered hollow plastic container
US3881621A (en) * 1973-07-02 1975-05-06 Continental Can Co Plastic container with noneverting bottom
JPS54146870A (en) * 1978-05-10 1979-11-16 Nippon Ester Co Ltd Blow molded article of polyester
US4525401A (en) * 1979-11-30 1985-06-25 The Continental Group, Inc. Plastic container with internal rib reinforced bottom
US4395378A (en) 1981-05-14 1983-07-26 Sewell Plastics, Inc. Method for making an injection stretch blow molded container with an integral tab
US4465199A (en) * 1981-06-22 1984-08-14 Katashi Aoki Pressure resisting plastic bottle
JPS5866919U (ja) * 1981-10-30 1983-05-07 株式会社吉野工業所 壜成形用管状中間素材
EP0108307A1 (en) * 1982-11-08 1984-05-16 Adjusta-Post Manufacturing Co. Injection-blow molding of plastic globes
US4927679A (en) * 1987-05-29 1990-05-22 Devtech, Inc. Preform for a monobase container
US4889752A (en) * 1987-05-29 1989-12-26 Devtech, Inc. One piece self-standing blow molded plastic containers
JPH085117B2 (ja) * 1988-11-10 1996-01-24 日精エー・エス・ビー機械株式会社 耐圧性薄肉合成樹脂容器及びその成形方法
JPH03295615A (ja) 1990-04-16 1991-12-26 Toyo Seikan Kaisha Ltd 耐圧性自立型ポリエチレンテレフタレートボトル２軸延伸ブロー成形用プリフォーム及びこのプリフォームを用いて成形したボトル
JP2911557B2 (ja) * 1990-07-11 1999-06-23 大日本印刷株式会社 樹脂製予備成形体、それを用いた二軸延伸ブロー成形容器及びその製造方法
JPH04131221A (ja) * 1990-09-21 1992-05-01 Mitsui Petrochem Ind Ltd 吊り下げ用舌片付き容器の製造方法
US5290506A (en) * 1991-04-30 1994-03-01 Nissei Asb Machine Co., Ltd. Process of injection stretch blow molding hollow article having thick-walled bottom
JP2506250B2 (ja) 1991-12-18 1996-06-12 ヘルマン ハイエ ガラス流体からガラスゴブを剪断する剪断装置
US5508076A (en) * 1994-02-10 1996-04-16 Electra Form, Inc. Layered preform
JP3295615B2 (ja) * 1997-03-24 2002-06-24 日鐵建材工業株式会社 土留支保用切梁の係止構造
DE19925695B4 (de) * 1999-06-04 2010-01-28 Aisa Automation Industrielle S.A. Verfahren zur Herstellung von tubenförmigen Behältern
JP2002067128A (ja) * 2000-08-30 2002-03-05 Aoki Technical Laboratory Inc プリフォームの底部構造
RU2261199C2 (ru) * 2003-05-08 2005-09-27 Пирог Николай Иванович Пластиковая бутылка и форма для получения дна бутылки
JP4292918B2 (ja) * 2003-08-22 2009-07-08 東洋製罐株式会社 プラスチックボトル容器用プリフォーム
JP4148065B2 (ja) * 2003-08-26 2008-09-10 東洋製罐株式会社 プラスチックボトル容器の延伸ブロー成形方法及びこの成形方法により形成されるプラスチックボトル容器
JP4748475B2 (ja) * 2005-10-31 2011-08-17 株式会社吉野工業所 射出成形プリフォーム
EP2081769B1 (en) * 2006-10-04 2016-08-10 3M Innovative Properties Company Method of making multilayer polyurethane protective film
ITMI20061922A1 (it) * 2006-10-06 2008-04-07 Gianfilippo Pagliacci Preforma di materiale plastico perfezionata.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101863328A (zh) * 2010-06-09 2010-10-20 上海紫江企业集团股份有限公司 一种易拉伸瓶坯
CN104718235A (zh) * 2012-08-31 2015-06-17 依云矿泉水股份有限公司 制造由fdca和二醇单体制成的瓶的方法和实施该方法的装置
US9849620B2 (en) 2014-03-21 2017-12-26 Husky Injection Molding Systems Ltd. Container preform

Also Published As

Publication number Publication date
KR101537824B1 (ko) 2015-07-17
MA30818B1 (fr) 2009-10-01
MX346930B (es) 2017-04-05
WO2008041186A3 (en) 2009-05-07
TN2009000121A1 (en) 2010-10-18
US20100081003A1 (en) 2010-04-01
HK1137385A1 (zh) 2010-07-30
WO2008041186A8 (en) 2008-06-05
AU2007303824A8 (en) 2009-05-28
BRPI0717797A2 (pt) 2014-04-15
RU2469845C2 (ru) 2012-12-20
AR063156A1 (es) 2008-12-30
WO2008041186A2 (en) 2008-04-10
CN101522385B (zh) 2014-07-30
TW200902294A (en) 2009-01-16
US9492950B2 (en) 2016-11-15
AU2007303824B2 (en) 2012-07-05
EP2439032A3 (en) 2012-11-07
KR20090060326A (ko) 2009-06-11
UA96609C2 (en) 2011-11-25
EP2077934A2 (en) 2009-07-15
MX2009003527A (es) 2009-05-11
JP2010505653A (ja) 2010-02-25
JP2013078951A (ja) 2013-05-02
ITMI20061922A1 (it) 2008-04-07
AU2007303824A1 (en) 2008-04-10
IL197729A0 (en) 2009-12-24
EP2439032A2 (en) 2012-04-11
CA2665331A1 (en) 2008-04-10
RU2009117211A (ru) 2010-11-20
IL197729A (en) 2013-06-27
ZA200902874B (en) 2010-04-28

Similar Documents

Publication Publication Date Title
CN101522385B (zh) 改进的塑料预成型件
KR101961185B1 (ko) 프리폼의 온도 조정 장치 및 프리폼의 온도 조정 방법, 수지제 용기 및 수지제 용기의 제조 방법
US20090078672A1 (en) Container and Preform for Obtaining a Container
EP2948284B1 (en) Preform of plastic material with lightened closed end
US9849620B2 (en) Container preform
WO2011045739A1 (en) Preform of plastic material with recesses formed on the head thereof
JP6340047B2 (ja) 樹脂ボトル用プリフォーム
CN100372740C (zh) Pet塑料容器坯、pet塑料容器坯的制造方法及设备
US11865742B2 (en) Preform and mold stack
JP5446162B2 (ja) プリフォーム
US9567128B2 (en) Wide mouth container and method of making the same
ITMI20090489A1 (it) Maschio perfezionato per stampi di preforme e preforma ottenuta con esso.
JP2009262441A (ja) 合成樹脂製ブローボトルの成形方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1137385

Country of ref document: HK

C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140730

Termination date: 20211003