CN100391722C - 合成树脂制瓶状容器的制造方法及装置 - Google Patents
合成树脂制瓶状容器的制造方法及装置 Download PDFInfo
- Publication number
- CN100391722C CN100391722C CNB028128567A CN02812856A CN100391722C CN 100391722 C CN100391722 C CN 100391722C CN B028128567 A CNB028128567 A CN B028128567A CN 02812856 A CN02812856 A CN 02812856A CN 100391722 C CN100391722 C CN 100391722C
- Authority
- CN
- China
- Prior art keywords
- neck
- preform
- synthetic resin
- temperature
- container
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0063—After-treatment of articles without altering their shape; Apparatus therefor for changing crystallisation
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1658—Cooling using gas
-
- 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
- B29C2049/7861—Temperature of the preform
- B29C2049/7862—Temperature of the preform characterised by temperature values or ranges
-
- 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
- B29C2949/20—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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3041—Preforms or parisons made of several components having components being extruded
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
-
- 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
- B29C49/04—Extrusion 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
- B29C49/02—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
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6409—Thermal conditioning of preforms
- B29C49/6436—Thermal conditioning of preforms characterised by temperature differential
- B29C49/6445—Thermal conditioning of preforms characterised by temperature differential through the preform length
- B29C49/6452—Thermal conditioning of preforms characterised by temperature differential through the preform length by heating the neck
-
- 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
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/68—Ovens specially adapted for heating preforms or parisons
- B29C49/685—Rotating the preform in relation to 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- 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
-
- 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
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0041—Crystalline
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (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)
Abstract
一种聚对苯二甲酸乙二酯树脂等的合成树脂制瓶状容器的制造方法,包括对相当于容器的颈部的预塑形坯的颈部进行加热结晶化的热处理制造工艺。在热处理制造工艺的第一阶段中,将预塑形坯的颈部暂时的升温至其合成树脂的融点附近的温度为止,其中当合成树脂为聚对苯二甲酸乙二酯树脂时,则是暂时的升温至200℃-230℃左右的温度为止。接着,在第二阶段中,将预塑形坯的颈部的温度维持于可促进其合成树脂的结晶化的温度范围内,其中当合成树脂为聚对苯二甲酸乙二酯树脂时,则是将温度维持于170℃-195℃左右的温度。
Description
技术领域
本发明关于一种合成树脂制瓶(bottle)状容器的制造方法及装置,特别是关于一种在短时间内对容器的颈部(neck)进行结晶化处理的制造方法。
背景技术
对合成树脂制瓶状容器而言,为了提高容器颈部的耐热性及耐久性,公知的方法是将对应预塑形坯(pre-form)的颈部加热而使其结晶化。容器的主体通过二轴延伸吹炼(blow)成形而将分子进行配向,与所维持的透明性相对照可知,施加结晶化处理的颈部具有由球晶成长而得的结晶组织,因而变成白色或乳白色而失去透明。前述的瓶状容器的制造方法例如是美国专利第4375442号申请案所具体记载的技术。
合成树脂的结晶化为合成树脂在玻璃转移温度以上的温度条件下加热产生的。一般而言,当为聚对苯二甲酸乙二酯(polyethyleneterephthalate,PET)树脂的情形下,预塑形坯的颈部于大约120℃以上的温度下,并于所定时间内持续加热而进行结晶化。较特别的是,在大约170℃~190℃左右的温度领域内进行加热可以提高结晶化速度。
然而,在公知的结晶方法中,由于预塑形坯的颈部会从开始加热之后缓缓地升温至上述结晶化温度的领域,因此,实际上结晶化开始至结束为止的时间需要比较长的时间,因而有其本身的生产性提升的界限。
鉴于上述问题,本发明的目的是提供一种合成树脂制瓶状容器的制造技术,以利用比较短的时间进行结晶化处理。
发明内容
为解决上述问题,本发明提出一种合成树脂制瓶状容器的制造方法,包括对相当于容器的颈部的预塑形坯的颈部进行加热结晶化的热处理制造工艺,此热处理制造工艺包括第一阶段及第二阶段。第一阶段是将预塑形坯的颈部暂时的升温至容器的合成树脂的融点之前的温度为止。第二阶段是接续第一阶段,将预塑形坯的颈部的温度维持于促进预塑形坯的颈部的合成树脂的结晶化的范围内。
再者,本发明提出一种合成树脂制瓶状容器的制造装置,包括对相当于容器的颈部的预塑形坯的颈部进行加热结晶化的热处理手段,此热处理手段包括第一阶段及第二阶段。第一阶段是将预塑形坯的颈部暂时的升温至容器的合成树脂的融点之前的温度为止。第二阶段是接续第一阶段,将预塑形坯的颈部的温度维持于促进预塑形坯的颈部的合成树脂的结晶化的范围内。
亦即,当进行本发明的合成树脂制瓶状容器的制造之际,对预塑形坯的颈部进行加热而结晶化时,将预塑形坯的颈部暂时的升温至其合成树脂的融点之前的温度为止,其中当合成树脂为聚对苯二甲酸乙二酯树脂时,则是暂时的升温至200℃~230℃左右的温度为止。接着将预塑形坯的颈部的温度维持于可促进其合成树脂的结晶化的温度范围内,其中当合成树脂为聚对苯二甲酸乙二酯树脂时,则是将温度维持于170℃~195℃左右的温度。由此,可使颈部的气氛气温度在稳定的状态下,到达促进结晶化的温度范围的时间,进而可以缩短颈部结晶化处理所需的时间,并大幅提高生产效率。
当实施本发明之际,较佳是用加热器的加热输出进行热处理,其中在热处理的第一阶段中,将加热输出控制在比较高的程度,而在第二阶段中,将加热输出控制在比较低的程度。在此情形下,通过对加热器的加热输出的控制,可轻易实现用以将颈部在比较短的时间结晶化的最佳温度管理。
在热处理的该第二阶段中,还包括于预塑形坯的颈部的外面适用空气吹淋。在此情形下,第二阶段中颈部的温度在施加加热器的加热输出控制之后,可通过来自空气喷嘴有空气的流量控制而轻易地维持于最佳值,进而可使时间最小化。
在适用有该空气吹淋之际,较佳是利用挡板遮蔽预塑形坯的颈部的开口,以阻止空气流入预塑形坯的颈部内。在此情形下,可以减少颈部的外面及内面之间的温度差,进而可以抑制在颈部的开口内所发生的皱折等表面缺陷。
附图说明
图1所示为瓶状合成树脂制容器的制造时所使用的预塑形坯的局部剖面的正面图。
图2所示为当实施本发明的制造方法之际,用以进行颈部的结晶化的热处理装置的一较佳实施例的模式图。
图3所示为线性图标颈部温度变化的时间图。
附图标记说明:
10:预塑形坯
11:颈部
11a:外面
11b:内面
12:主体
13:底部
14:开口
20:热处理装置
21:挟持器
22:加热器
23:空气喷嘴
24:控制器
25:挡板
具体实施方式
为让本发明的上述和其它目的、特征、和优点能更明显易懂,下文特举较佳实施例,并配合附图,作详细说明如下:
本发明为了制造由具有聚对苯二甲酸乙二酯树脂等的结晶性的热可塑性合成树脂所构成的瓶状容器,在将对应容器的预塑形坯,置于欲使用的主体的模具内,利用二轴延伸吹炼成形(biaxially-oriented blowforming)的同时,对颈部加热而使之结晶化。此类制造方法可使用前述的美国专利第4375442号申请案中所具体记载的技术。
请参照图1所示,预塑形坯10为通过热可塑性合成树脂的射出成形或压出成形所形成的物质,且此预塑形坯10具有颈部11、主体12及底部13。颈部11为设有用以作为容器的注入口的开口14,其中于外面11a上施加螺纹(screw),且内面11b形成平滑面。
在预塑形坯10中,颈部11的结晶化处理例如是在预塑形坯10的二轴延伸吹炼成形之前,利用图2所示的热处理装置20进行此结晶化处理。此热处理装置20是具有略成圆筒状的挟持器(holder)21。挟持器21可循着图2所示的垂直于中心轴线的周缘的箭头方向进行转动。挟持器21为可拆装的用以保持预塑形坯10的物体,其可在暴露出颈部11的状态下,包覆预塑形坯10的主体及底部13。在从挟持器21突出且与颈部11成对向的位置上,一侧配置有加热器(heater)22,另一侧配置有空气喷嘴(air nozzle)23。加热器22例如是使用近红外线加热器或远红外线加热器。空气喷嘴23较佳是具有流出孔(orifice),此流出孔是与预塑形坯10的中心轴线平行延伸且具有线性的截面形状。加热器22及空气喷嘴23可通过控制器24进行自动控制。另外,在从挟持器21突出的颈部11的正上方上,配置有用以遮蔽颈部11的开口14的挡板25。挡板25较佳是具有用以对来自空气喷嘴23的空气吹淋的流动进行适当导引的侧板的功能。
在图2所示的热处理装置20中,可借着沿保持有预塑形坯10的挟持器21的中心轴线的周缘进行转动而使加热器22动作,进而对从挟持器21突出的预塑形坯10的颈部11进行加热。再者,对应必要时,空气吹淋从空气喷嘴23喷出至颈部11的外面11a,以使颈部11的表面温度稳定的维持于后述的所定范围内。而且,挡板25可通过遮蔽颈部11的开口14,而在适用于空气吹淋之际,阻止空气流入预塑形坯10的颈部11内,并减少颈部11的外面11a及内面11b之间的温度差。
图3所示为线性图标颈部温度变化的时间图。其中,实线Ta表示本发明的结晶化处理时的温度变化,而一点链线Tb表示公知的结晶化处理时的温度变化。
在本发明中,由图3的实线Ta可知,当颈部11的加热之际,在从开始加热的时间点开始的第一阶段(时间t=0~t1)中,颈部11的表面温度T暂时的上升至构成预塑形坯的合成树脂的融点之前的温度T3为止。在接下来的第二阶段(时间t=t1~t2)中,颈部11的表面温度T会降低至可以有效的促进合成树脂的结晶化的温度领域R(T1≤T≤T2)内,并将温度维持此温度领域R内,以进行结晶化,且得完成结晶化之物。
相对于此,公知如同图3所示的一点链线Tb所示,当颈部11加热之际,颈部11的表面温度T会从开始加热的时间点(t=0)开始缓缓升温至上述温度领域R内。亦即单纯的上升的结果,结晶化处理的完成时间点t=t3迟于本发明的完成时间点t=t2。换言之,本发明进行结晶化处理所需的时间可比公知技术缩短Δt=t3-t2的时间。
接着,以预塑形坯10由聚对苯二甲酸乙二酯树脂所构成的情形为例,进行更具体的说明。在本发明中,颈部11的表面温度T在结晶化处理的第一阶段(时间t=0~t1)中,从开始暂时的上升至融点之前的温度 为止。接着,在第二阶段(时间t=t1~t2)中,降低至可以有效的促进结晶化的的至之间的温度领域R(T1≤T≤T2)为止,并将温度维持此温度领域R内。
为此,较佳是通过诸如控制器24将加热器22的加热输出,于第一阶段时,控制在比较高的程度(当加热器之最大输出为2kW的情形时,约为最大输出的95%左右),并于第二阶段时,控制在比较低的程度(当加热器的最大输出为2kW的情形时,约为最大输出的70%左右)。在此情形下,通过控制器24对加热器22的加热输出的控制,可轻易实现使颈部11在较短的时间内进行结晶化的最佳温度管理。而且,加热器22的加热输出也可以使用连续的变化取代前述的由第一阶段至第二阶段的一步步的变化。
在结晶化处理的第二阶段中,为了使颈部11的表面温度T稳定的维持于上述温度领域R内,因而需对加热器22的加热输出进行控制,并对应必要时,空气吹淋从空气喷嘴23喷出至颈部11的外面11a,以使颈部11的表面温度稳定的维持于后述的所定范围内。在此情形下,挡板25可通过遮蔽颈部11的开口14,而阻止空气流入颈部11内,进而避免在颈部11的开口14内发生皱折等表面缺陷。
对由聚对苯二甲酸乙二酯树脂所构成的预塑形坯10而言,当适当地对加热器22及空气喷嘴23的动作进行控制时,颈部11的结晶化所需要的时间,经实验证明,可比上述公知技术缩短约30%左右的时间。
由以上的说明可明显的得知,本发明提供一种合成树脂制瓶状容器的新的制造技术,以利用比较短的时间进行容器颈部的结晶化处理。其结果显示可以达成将生产效率大幅提高的目的。
另外,虽然本发明已以一较佳实施例公开如上,然其并非用以限定本发明,任何本领域的技术人员,在不脱离本发明的精神和范围内,可作各种的更动与润饰,例如,可以将上述较佳实施例中所公开的先对颈部11施加结晶化处理再进行预塑形坯10的二轴延伸吹炼成形的方式变更为先进行预塑形坯10的二轴延伸吹炼成形,再对颈部11施加结晶化处理。
Claims (16)
1.一种合成树脂制瓶状容器的制造方法,包括对相当于该容器的颈部的一预塑形坯的颈部进行加热结晶化的一热处理制造工艺,该热处理制造工艺包括:
一第一阶段,将该预塑形坯的颈部暂时的升温至低于且接近该容器的合成树脂的融点的一第一温度为止;
一第二阶段,接续该第一阶段,将该预塑形坯的颈部的温度维持于促进该预塑形坯的颈部的合成树脂的结晶化的一第二温度的范围内,且该第二温度低于该第一温度。
2.如权利要求1所述的合成树脂制瓶状容器的制造方法,还包括控制用于进行该热处理的一加热器的一加热输出,其中在该热处理的该第一阶段中,将该加热输出控制在比较高的程度,而在该第二阶段中,将该加热输出控制在比较低的程度。
3.如权利要求1所述的合成树脂制瓶状容器的制造方法,其特征在于:在该热处理的该第二阶段中,还包括于该预塑形坯的颈部的外面适用一空气吹淋。
4.如权利要求3所述的合成树脂制瓶状容器的制造方法,其特征在于:适用有该空气吹淋之际,利用一挡板遮蔽该预塑形坯的颈部的开口,以阻止空气流入该预塑形坯的颈部内。
5.如权利要求1所述的合成树脂制瓶状容器的制造方法,其特征在于:该合成树脂制容器由结晶性的热可塑性合成树脂所构成。
6.如权利要求5所述的合成树脂制瓶状容器的制造方法,其特征在于:该合成树脂制容器由聚对苯二甲酸乙二酯树脂所构成。
7.一种聚对苯二甲酸乙二酯树脂制瓶状容器的制造方法,包括对相当于该容器的颈部的一预塑形坯的颈部进行加热结晶化的一热处理制造工艺,该热处理制造工艺包括:
一第一阶段,将该预塑形坯的颈部暂时的升温至200℃~230℃左右的温度为止;
一第二阶段,接续该第一阶段,将该预塑形坯的颈部温度维持于170℃~195℃左右的温度。
8.如权利要求7所述的聚对苯二甲酸乙二酯树脂制瓶状容器的制造方法,还包括控制用于进行该热处理的一加热器的一加热输出,其中在该热处理的该第一阶段中,将该加热输出控制在比较高的程度,而在该第二阶段中,将该加热输出控制在比较低的程度。
9.如权利要求7所述的聚对苯二甲酸乙二酯树脂制瓶状容器的制造方法,其特征在于:在该热处理的该第二阶段中,还包括于该预塑形坯的颈部的外面适用一空气吹淋。
10.如权利要求9所述的聚对苯二甲酸乙二酯树脂制瓶状容器的制造方法,其特征在于:适用有该空气吹淋之际,利用一挡板遮蔽该预塑形坯的颈部的开口,以阻止空气流入该预塑形坯的颈部内。
11.一种合成树脂制瓶状容器的制造装置,包括对相当于该容器的颈部的一预塑形坯的颈部进行加热结晶化的一热处理装置,该热处理装置包括:
一加热器;
一控制装置,該控制装置控制該加熱器在一第一阶段,将该预塑形坯的颈部暂时的升温至低于且接近该容器的合成树脂的融点的一第一温度为止,並在接續該第一階段的一第二阶段,将该预塑形坯的颈部的温度维持于促进该预塑形坯的颈部的合成树脂的结晶化的一第二温度范围内,且该第二温度低于该第一温度;以及
一空气喷嘴,在该热处理的该第二阶段中,用于对该欲塑形坯的颈部的外面提供一空气吹淋。
12.如权利要求11所述的合成树脂制瓶状容器的制造装置,其特征在于:该控制装置控制该加热器的一加热输出,在该热处理的该第一阶段中,将该加热输出控制在比较高的程度,而在该第二阶段中,将该加热输出控制在比较低的程度。
13.如权利要求11所述的合成树脂制瓶状容器的制造装置,其特征在于:适用有该空气吹淋之际,利用一挡板遮蔽该预塑形坯的颈部的开口,以阻止空气流入该预塑形坯的颈部内。
14.一种聚对苯二甲酸乙二酯树脂制瓶状容器的制造装置,包括对相当于该容器的颈部的一预塑形坯的颈部进行加热结晶化的一热处理装置,该热处理装置包括:
一加热器;
一控制装置,該控制装置控制該加热器在一第一阶段,将该预塑形坯的颈部暂时的升温至200℃~230℃左右的温度为止,並在接續該第一階段的一第二阶段,将该预塑形坯的颈部温度维持于170℃~195℃左右的温度;以及
一空气喷嘴,在该热处理的该第二阶段中,用于对该欲塑形坯的颈部的外面提供一空气吹淋。
15.如权利要求14所述的聚对苯二甲酸乙二酯树脂制瓶状容器的制造装置,其特征在于:該控制装置控制控制该加热器的一加热输出,在该热处理的该第一阶段中,将该加热输出控制在比较高的程度,而在该第二阶段中,将该加热输出控制在比较低的程度。
16.如权利要求14所述的聚对苯二甲酸乙二酯树脂制瓶状容器的制造装置,其特征在于:适用有该空气吹淋之际,利用一挡板遮蔽该预塑形坯的颈部的开口,以阻止空气流入该预塑形坯的颈部内。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP199130/2001 | 2001-06-29 | ||
JP2001199130A JP4562320B2 (ja) | 2001-06-29 | 2001-06-29 | 合成樹脂製容器の口元高速白化方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1520353A CN1520353A (zh) | 2004-08-11 |
CN100391722C true CN100391722C (zh) | 2008-06-04 |
Family
ID=19036465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028128567A Expired - Fee Related CN100391722C (zh) | 2001-06-29 | 2002-06-27 | 合成树脂制瓶状容器的制造方法及装置 |
Country Status (10)
Country | Link |
---|---|
US (2) | US7306760B2 (zh) |
EP (1) | EP1413422B1 (zh) |
JP (1) | JP4562320B2 (zh) |
KR (1) | KR100524282B1 (zh) |
CN (1) | CN100391722C (zh) |
AU (1) | AU2002313283B9 (zh) |
CA (1) | CA2452116C (zh) |
DE (1) | DE60228092D1 (zh) |
TW (1) | TW548171B (zh) |
WO (1) | WO2003002333A1 (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060157896A1 (en) * | 2004-10-22 | 2006-07-20 | Lee Robert A | Method and apparatus for producing bottles and preforms having a crystalline neck |
WO2007054365A1 (en) | 2005-11-14 | 2007-05-18 | Abbott Laboratories Vascular Enterprises Limited | Method of thermal treatment of a thermally responsive material of medical devices |
KR101009282B1 (ko) * | 2008-07-17 | 2011-01-18 | 이응준 | 펫트병 성형용 맨드릴 |
CN102114688A (zh) * | 2009-12-30 | 2011-07-06 | 中原工学院 | 一种增强pet材料冲击强度和拉伸强度的方法 |
WO2011148879A1 (ja) * | 2010-05-28 | 2011-12-01 | 日精エー・エス・ビー機械株式会社 | プリフォームの口部結晶化方法 |
ES2642359T3 (es) * | 2011-08-01 | 2017-11-16 | Graham Packaging Company, L.P. | Recipiente de aerosol de plástico y método de fabricación |
CN103978704B (zh) * | 2014-05-12 | 2017-01-25 | 南通天工深冷新材料强化有限公司 | 一种提高工程塑料硬度和耐磨性能的连续性深冷处理工艺 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60927A (ja) * | 1983-06-17 | 1985-01-07 | Mitsubishi Plastics Ind Ltd | ボトル口栓部の結晶化方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3562372A (en) * | 1968-05-08 | 1971-02-09 | Giltech Corp | Method of shaping while cooling the neck portion of a blow molded plastic bottle |
US3889039A (en) * | 1973-04-26 | 1975-06-10 | Horizons Inc | Nucleation and orientation of linear polymers |
GB2024087B (en) * | 1978-06-29 | 1982-08-25 | Yoshino Kogyosho Co Ltd | Blow moulding polyester container |
US4318882A (en) * | 1980-02-20 | 1982-03-09 | Monsanto Company | Method for producing a collapse resistant polyester container for hot fill applications |
JPS57189824A (en) * | 1981-05-19 | 1982-11-22 | Yoshino Kogyosho Co Ltd | Method of strengthening cylindrical mouthpiece of bottle made of polyethylene telephthalate resin |
JPS60125650A (ja) * | 1983-12-13 | 1985-07-04 | Hokkai Can Co Ltd | ポリエチレンテレフタレ−ト樹脂製容器の口部白化処理方法及び装置 |
JPS6179627A (ja) * | 1984-09-28 | 1986-04-23 | Toyo Seikan Kaisha Ltd | 飽和ポリエステル中空体の結晶化装置 |
FR2595294B1 (fr) * | 1986-03-04 | 1988-07-08 | Sidel Sa | Procede et installation pour fabriquer des recipients, tels que des bouteilles, en polyethyleneterephtalate, resistant a des conditions thermiques relativement severes au cours de leur utilisation |
JPS63176129A (ja) * | 1987-01-16 | 1988-07-20 | Toyo Seikan Kaisha Ltd | 飽和ポリエステルびんの口頸部の結晶化方法 |
FR2619048B1 (fr) | 1987-08-07 | 1990-01-19 | Sidel Sa | Dispositif pour le traitement thermique du col de preformes |
DE3740343A1 (de) * | 1987-11-27 | 1989-06-08 | Krupp Corpoplast Masch | Verfahren zum herstellen eines blasgeformten behaelters aus einem thermoplastischen polyester, insbesondere pet |
JPH0622876B2 (ja) | 1988-07-25 | 1994-03-30 | 東洋製罐株式会社 | プリフォーム結晶化装置におけるホルダー、打込みコアー及び冷却装置 |
JPH0643091B2 (ja) * | 1989-02-10 | 1994-06-08 | 東洋製罐株式会社 | 耐熱性ポリエステルボトルとその製造方法 |
IE68430B1 (en) * | 1990-08-12 | 1996-06-12 | Polysheet Ireland Ltd | A method and apparatus for forming an article of PET material |
US5540868A (en) * | 1995-01-20 | 1996-07-30 | E. I. Du Pont De Nemours And Company | Process for pellet formation from amorphous polyester |
JP3205500B2 (ja) * | 1996-03-06 | 2001-09-04 | 株式会社吉野工業所 | 樹脂容器の製造方法 |
JP3612405B2 (ja) | 1997-04-04 | 2005-01-19 | 日精エー・エス・ビー機械株式会社 | ネック部が結晶化されたプリフォームの成形方法及びその装置 |
CN100441391C (zh) * | 1997-04-16 | 2008-12-10 | 哈斯基注模系统有限公司 | 非晶体塑料制品的局部结晶方法和装置 |
JPH11235751A (ja) * | 1998-02-20 | 1999-08-31 | Ueno Hiroshi | プラスチック成形体の結晶化方法 |
JP2004009633A (ja) * | 2002-06-10 | 2004-01-15 | Frontier:Kk | プリフォーム首部の結晶化方法およびプリフォームホルダ |
US20060157896A1 (en) * | 2004-10-22 | 2006-07-20 | Lee Robert A | Method and apparatus for producing bottles and preforms having a crystalline neck |
-
2001
- 2001-06-29 JP JP2001199130A patent/JP4562320B2/ja not_active Expired - Fee Related
-
2002
- 2002-06-27 US US10/482,120 patent/US7306760B2/en not_active Expired - Lifetime
- 2002-06-27 AU AU2002313283A patent/AU2002313283B9/en not_active Ceased
- 2002-06-27 WO PCT/JP2002/006516 patent/WO2003002333A1/ja active IP Right Grant
- 2002-06-27 CA CA002452116A patent/CA2452116C/en not_active Expired - Fee Related
- 2002-06-27 DE DE60228092T patent/DE60228092D1/de not_active Expired - Lifetime
- 2002-06-27 EP EP02738832A patent/EP1413422B1/en not_active Expired - Fee Related
- 2002-06-27 CN CNB028128567A patent/CN100391722C/zh not_active Expired - Fee Related
- 2002-06-27 KR KR10-2003-7002491A patent/KR100524282B1/ko active IP Right Grant
- 2002-06-28 TW TW091114291A patent/TW548171B/zh not_active IP Right Cessation
-
2007
- 2007-09-25 US US11/902,761 patent/US7540737B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60927A (ja) * | 1983-06-17 | 1985-01-07 | Mitsubishi Plastics Ind Ltd | ボトル口栓部の結晶化方法 |
Also Published As
Publication number | Publication date |
---|---|
US20080031993A1 (en) | 2008-02-07 |
AU2002313283B2 (en) | 2005-09-01 |
WO2003002333A1 (en) | 2003-01-09 |
EP1413422A1 (en) | 2004-04-28 |
CN1520353A (zh) | 2004-08-11 |
AU2002313283B9 (en) | 2006-06-08 |
US7306760B2 (en) | 2007-12-11 |
DE60228092D1 (de) | 2008-09-18 |
JP4562320B2 (ja) | 2010-10-13 |
US7540737B2 (en) | 2009-06-02 |
CA2452116C (en) | 2007-06-12 |
EP1413422A4 (en) | 2006-06-07 |
KR100524282B1 (ko) | 2005-11-01 |
EP1413422B1 (en) | 2008-08-06 |
KR20040014933A (ko) | 2004-02-18 |
JP2003011243A (ja) | 2003-01-15 |
TW548171B (en) | 2003-08-21 |
US20040251579A1 (en) | 2004-12-16 |
AU2002313283C1 (en) | 2003-03-03 |
CA2452116A1 (en) | 2003-01-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100586701C (zh) | 通过压缩成形和拉伸吹塑成形而形成的容器的制造方法及制造装置 | |
US4933135A (en) | Method of making a blow-moulded container from a thermoplastic polyester, in particular pet | |
JPH05237921A (ja) | 圧力成形プラスチック品調整用装置 | |
ATE229426T1 (de) | Verfahren und vorrichtung zur steuerung einer behälterformung | |
GB1523146A (en) | Method and apparatus for producing plastic containers for storage of goods | |
JPH0740955A (ja) | 耐熱性に優れた二軸延伸プラスチックボトルの製造方法および装置 | |
CN100391722C (zh) | 合成树脂制瓶状容器的制造方法及装置 | |
CN102905872A (zh) | 预成形坯的口部结晶化方法 | |
GB1487002A (en) | Manufacture of biaxially oriented hollow containers of thermoplastics material | |
JPH1134152A (ja) | 大型容器及びその成形方法 | |
JP2876992B2 (ja) | 二軸延伸ブロー容器の製造方法 | |
CN101821080B (zh) | 形成容器的工艺过程,其包括在至少一个给定补偿时间的可变时间内冲刷容器内部容积的步骤 | |
JPS63207630A (ja) | ボトル円周方向肉厚調整方法及び装置 | |
JP4351876B2 (ja) | ガラス容器の製造方法およびガラス容器の製造装置 | |
JPH0443498B2 (zh) | ||
CN101934581B (zh) | 结晶瓶口容器轻量化方法 | |
JPH06297555A (ja) | 熱可塑性合成樹脂から中空成形体を製造する方法 | |
JP4142998B2 (ja) | プリフォームの加熱装置 | |
CN2319213Y (zh) | 注拉吹二次成型塑料瓶坯预热器 | |
JPH04275130A (ja) | プリフォームの温度調節方法 | |
JPH0373316A (ja) | ブロー成形用変形パリソンの製造方法、製造装置及び延伸ブロー成形壜体の製造方法 | |
JPH04327924A (ja) | プリフォームの温調方法及び装置 | |
CN1241481A (zh) | 注拉吹二次成型塑料制瓶工艺 | |
WO2003045665A1 (en) | Printing method for pet bottles, while printing / spraying / stamping the preforms before blow moulding | |
CN1241482A (zh) | 用在二次成型塑料制瓶新工艺中的热处理装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
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: 20080604 Termination date: 20190627 |