Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberCN1520353 A
Publication typeApplication
Application numberCN 02812856
PCT numberPCT/JP2002/006516
Publication date11 Aug 2004
Filing date27 Jun 2002
Priority date29 Jun 2001
Also published asCA2452116A1, CA2452116C, CN100391722C, DE60228092D1, EP1413422A1, EP1413422A4, EP1413422B1, US7306760, US7540737, US20040251579, US20080031993, WO2003002333A1
Publication number02812856.7, CN 02812856, CN 1520353 A, CN 1520353A, CN-A-1520353, CN02812856, CN02812856.7, CN1520353 A, CN1520353A, PCT/2002/6516, PCT/JP/2/006516, PCT/JP/2/06516, PCT/JP/2002/006516, PCT/JP/2002/06516, PCT/JP2/006516, PCT/JP2/06516, PCT/JP2002/006516, PCT/JP2002/06516, PCT/JP2002006516, PCT/JP200206516, PCT/JP2006516, PCT/JP206516
Inventors山中宏二, , 饭村好宏, 上杉大辅,
Applicant株式会社吉野工业所
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Process and appts. for producing bottle-shaped container made of synthetic resin
CN 1520353 A
Abstract  translated from Chinese
一种聚对苯二甲酸乙二醇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塑坯预塑的颈部进行加热结晶化的热处理制造工艺。 A method for producing polyethylene terephthalate resins and other synthetic resin bottle-shaped container, including the equivalent of the neck of the container neck of the preform is heated crystallization heat treatment manufacturing process. 在热处理制造工艺的第一阶段中,将塑坯预塑的颈部迅速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醇酯树脂时,则是迅速升温至摄氏200度~摄氏230度左右的温度为止。 In the first stage heat treatment in the manufacturing process, the preform neck quickly warmed to the melting point of the synthetic resin until the temperature in the vicinity, including when the synthetic resin is a polyethylene terephthalate resin, it is rapid heating to a temperature of 200 Celsius degrees to 230 degrees Celsius is reached. 接着,在第二阶段中,将塑坯预塑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醇酯树脂时,则是将温度维持于摄氏170度~摄氏195度左右的温度。 Then, in a second stage, the neck of the preform temperature is maintained at a pre-molded promotes its crystallization temperature range of synthetic resin, wherein, when the synthetic resin is a polyethylene terephthalate resin, sucked the temperature is maintained at a temperature of 195 degrees Celsius - 170 degrees Celsius.
Claims(18)  translated from Chinese
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塑坯预塑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,将该塑坯预塑的颈部迅速升温至该容器的合成树脂的融点之前的温度为止;一第二阶段,接续该第一阶段,将该塑坯预塑的颈部的温度维持于促进该塑坯预塑的颈部的合成树脂的结晶化的范围内。 A method of manufacturing a synthetic resin bottle-shaped container, including the equivalent of a neck portion of the container neck of the preform by heating a crystallization heat treatment of the manufacturing process, the manufacturing process of the heat treatment comprising: a first stage, the neck of the preform quickly warmed to the melting point of the synthetic resin container before the temperature is reached; a second phase, the first phase of the connection, the temperature of the neck of the preform is maintained to promote within the scope of the crystallization of the preform neck of synthetic resin.
2.如权利要求1项所述的合成树脂制瓶状容器的制造方法,还包括用一加热器的一加热输出进行该热处理,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。 The method of manufacturing a synthetic resin bottle-shaped container 2. As described in claim 1, further comprising a heater with a heat output of the heat treatment is carried out, wherein in the first stage of the heat treatment, and the heating output control at a relatively high level, and in the second stage, the heating output control at a relatively low level.
3.如权利要求1项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,还包括于该塑坯预塑的颈部的外面适用一空气喷射器。 The method of manufacturing synthetic resin bottle-shaped container 3. As described in claim 1, characterized in that: the second stage of the heat treatment, it is also included in the outside of the neck of the preform apply an air ejector.
4.如权利要求3项所述的合成树脂制瓶状容器的制造方法,其特征在于:适用有该空气喷射器之际,利用一挡板遮蔽该塑坯预塑的颈部的开口,以阻止空气流入该塑坯预塑的颈部内。 The method of manufacturing synthetic resin bottle-shaped container 4. As described in claim 3, wherein: for there the air ejector occasion, use a shutter blocks the opening of the neck of the preform to prevent air from flowing into the neck of the preform.
5.如权利要求1项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。 The method of manufacturing a synthetic resin bottle-shaped container of claim 5. claim 1, characterized in that: the synthetic resin container made of a crystalline thermoplastic synthetic resin composition.
6.如权利要求5项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醇酯树脂所构成。 The method of manufacturing a synthetic resin bottle-shaped container 6. As described in claim 5, characterized in that: the synthetic resin container made of polyethylene terephthalate resin composition.
7.一种聚对苯二甲酸乙二醇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塑坯预塑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,将该塑坯预塑的颈部迅速升温至摄氏200度~摄氏230度左右的温度为止;一第二阶段,接续该第一阶段,将该塑坯预塑的颈部温度维持于摄氏170度~摄氏195度左右的温度。 7. A method for producing polyethylene terephthalate ester resin bottle-shaped container, including the equivalent of a neck of the container neck of the preform is heated to crystallize and heat treatment of the manufacturing process, The heat treatment manufacturing process comprising: a first stage, the preform neck quickly warmed to a temperature of 200 Celsius degrees to about 230 degrees Celsius so far; a second phase, the sequence of the first stage, the preform pre-plastic neck temperature is maintained at a temperature of 195 degrees Celsius - 170 degrees Celsius.
8.如权利要求7项所述的合成树脂制瓶状容器的制造方法,还包括用一加热器的一加热输出进行该热处理,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。 The method of manufacturing a synthetic resin bottle-shaped container 8. The claim 7, further comprising a heater with a heat output of the heat treatment is carried out, wherein in the first stage of the heat treatment, and the heating output control at a relatively high level, and in the second stage, the heating output control at a relatively low level.
9.如权利要求7项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,还包括于该塑坯预塑的颈部的外面适用一空气喷射器。 The method of manufacturing synthetic resin bottle-shaped container process as claimed in claim 7, characterized in that: the second stage of the heat treatment, it is also included in the outside of the neck of the preform apply an air ejector.
10.如权利要求9项所述的合成树脂制瓶状容器的制造方法,其特征在于:适用有该空气喷射器之际,利用一挡板遮蔽该塑坯预塑的颈部的开口,以阻止空气流入该塑坯预塑的颈部内。 The method of manufacturing synthetic resin bottle-shaped container 10. As described in claim 9, wherein: for there the air ejector occasion, use a shutter blocks the opening of the neck of the preform to prevent air from flowing into the neck of the preform.
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塑坯预塑的颈部进行加热结晶化的一热处理手段,该热处理手段包括:一第一阶段,将该塑坯预塑的颈部迅速升温至该容器的合成树脂的融点之前的温度为止;一第二阶段,接续该第一阶段,将该塑坯预塑的颈部的温度维持于促进该塑坯预塑的颈部的合成树脂的结晶化的范围内。 11. The apparatus for manufacturing a synthetic resin bottle-shaped container, including the equivalent of a neck portion of the container neck of the preform by heating a crystallization heat treatment means, the heat treatment means comprises: a first stage , the preform neck quickly warmed to the synthetic resin of the vessel prior to the melting point temperature is reached; temperature and a second stage, the sequence of the first stage, the neck of the preform is maintained at promoting crystallized within the scope of the preform neck of synthetic resin.
12.如权利要求11项所述的合成树脂制瓶状容器的制造装置,其特征在于:该热处理手段包括一加热器及该加热器的一加热输出,且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。 Manufacturing equipment synthetic resin bottle-shaped container 12. As described in claim 11, characterized in that: the heat treatment means includes a heater and a heating output of the heater, and in the first stage of the heat treatment of , the heating output control at a relatively high level, and in the second stage, the heating output control at a relatively low level.
13.如权利要求11项所述的合成树脂制瓶状容器的制造装置,其特征在于:在该热处理的该第二阶段中,还包括于该塑坯预塑的颈部的外面适用一空气喷射器。 13. The manufacturing apparatus according to claim 11 of synthetic resin bottle-shaped container, characterized in that: the second stage of the heat treatment, it is also included in the outside of the neck of the preform apply an air ejector.
14.如权利要求13项所述的合成树脂制瓶状容器的制造装置,其特征在于:适用有该空气喷射器之际,利用一挡板遮蔽该塑坯预塑的颈部的开口,以阻止空气流入该塑坯预塑的颈部内。 Manufacturing equipment synthetic resin bottle-shaped container 14. As described in claim 13, characterized in that: for there the air ejector occasion, use a shutter for covering the preform neck opening to prevent air from flowing into the neck of the preform.
15.一种聚对苯二甲酸乙二醇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塑坯预塑的颈部进行加热结晶化的一热处理手段,该热处理手段包括:一第一阶段,将该塑坯预塑的颈部迅速升温至摄氏200度~摄氏230度左右的温度为止;一第二阶段,接续该第一阶段,将该塑坯预塑的颈部温度维持于摄氏170度~摄氏195度左右的温度。 15. A polyethylene terephthalate resin bottle-shaped container manufacturing apparatus, including the equivalent of a neck of the container neck of the preform is heated to crystallize a heat treatment methods, the heat treatment means comprising: a first stage, the preform neck quickly warmed to 200 degrees Celsius - a temperature of about 230 degrees Celsius so far; a second phase, the sequence of the first stage, the preform neck temperature was maintained at a temperature of 195 degrees Celsius - 170 degrees Celsius.
16.如权利要求15项所述的合成树脂制瓶状容器的制造装置,其特征在于:该热处理手段包括一加热器及该加热器的一加热输出,且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。 It means producing synthetic resin bottle-shaped container 16. As described in claim 15, characterized in that: the heat treatment means comprising a heater and a heating output of the heater, and the first stage of the thermal treatment of , the heating output control at a relatively high level, and in the second stage, the heating output control at a relatively low level.
17.如权利要求15项所述的合成树脂制瓶状容器的制造装置,其特征在于:在该热处理的该第二阶段中,还包括于该塑坯预塑的颈部的外面适用一空气喷射器。 Manufacturing equipment synthetic resin bottle-shaped container 17. As described in claim 15, characterized in that: the second stage of the heat treatment, it is also included in the outside of the neck of the preform apply an air ejector.
18.如权利要求17项所述的合成树脂制瓶状容器的制造装置,其特征在于:适用有该空气喷射器之际,利用一挡板遮蔽该塑坯预塑的颈部的开口,以阻止空气流入该塑坯预塑的颈部内。 Manufacturing equipment synthetic resin bottle-shaped container 18. As described in claim 17, characterized in that: for there the air ejector occasion, use a shutter for covering the preform neck opening to prevent air from flowing into the neck of the preform.
Description  translated from Chinese
合成树脂制瓶状容器的制造方法及装置 The method of manufacturing synthetic resin bottle-shaped containers and apparatus

技术领域 Technical Field

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。 The present invention relates to a synthetic resin bottle (bottle) like container manufacturing method and apparatus, particularly with regard to the manufacturing method of the container neck in a short time (neck) crystallization process.

背景技术 Background

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塑坯预塑(pre-form)的颈部加热而使其结晶化。 Synthetic resin bottle-shaped container, in order to improve the heat resistance and durability of the container neck, a known method is to correspond to the preform (pre-form) neck heating to crystallize. 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。 The body of the container by biaxial stretch blowing (blow) molding the molecule alignment, and maintaining the apparent contrast transparency, the neck having a crystallization process is applied by the growth of spherulites obtained crystal structure, and thus become transparent milky white or lose. 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。 The method of manufacturing a bottle-shaped container of the foregoing techniques, for example, U.S. Patent No. 4,375,442 as specifically described in the application text.

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。 Crystalline synthetic resin into a synthetic resin at a temperature higher than the glass transition temperature of the heat generated. 一般而言,当为聚对苯二甲酸乙二醇酯(polyethyleneterephthalate,PET)树脂的情形下,塑坯预塑的颈部于大约摄氏120度以上的温度下,并于所定时间内持续加热而进行结晶化。 In general, when the polyethylene terephthalate (polyethyleneterephthalate, PET) resin case, at a temperature of preform neck to above about 120 degrees Celsius, and within a predetermined time duration heating crystallization. 较特别的是,在大约摄氏170度~摄氏190度左右的温度领域内进行加热可以提高结晶化速度。 More special is heated at a temperature of about 170 degrees Celsius - the field of 190 degrees Celsius can increase the crystallization rate.

然而,在公知的结晶方法中,由于塑坯预塑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。 However, in the known crystallization method, since the preform neck will be after the start heating slowly warmed to above the crystallization temperature of the field, so in practice until the end of the crystallization start to take a long time Time, which has its own boundaries to enhance productivity.

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。 In view of the above problems, an object of the invention is to provide a synthetic resin bottle-shaped container manufacturing technology, to take advantage of a relatively short time crystallization process.

发明内容 DISCLOSURE

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塑坯预塑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。 To solve the above problems, the present invention provides a method of manufacturing a synthetic resin bottle-shaped container, including the equivalent of the neck of the container preform neck crystallization heat treatment for heating the manufacturing process, the manufacturing process including heat treatment The first stage and second stage. 第一阶段是将塑坯预塑的颈部迅速升温至容器的合成树脂的融点之前的温度为止。 The first stage is to preform the neck quickly warmed to the melting point of the synthetic resin container before the temperature. 第二阶段是接续第一阶段,将塑坯预塑的颈部的温度维持于促进塑坯预塑的颈部的合成树脂的结晶化的范围内。 The second stage is a continuation of the first stage, the temperature of the neck of the preform is maintained at promoting crystallization within the scope of the preform neck of synthetic resin.

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塑坯预塑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。 Furthermore, the present invention provides apparatus for manufacturing a synthetic resin bottle-shaped container, including the equivalent of the neck of the container neck of the preform is heated crystallization heat treatment means, this heat treatment means comprises a first phase and The second stage. 第一阶段是将塑坯预塑的颈部迅速升温至容器的合成树脂的融点之前的温度为止。 The first stage is to preform the neck quickly warmed to the melting point of the synthetic resin container before the temperature. 第二阶段是接续第一阶段,将塑坯预塑的颈部的温度维持于促进塑坯预塑的颈部的合成树脂的结晶化的范围内。 The second stage is a continuation of the first stage, the temperature of the neck of the preform is maintained at promoting crystallization within the scope of the preform neck of synthetic resin.

亦即,当进行本发明的合成树脂制瓶状容器的制造之际,对塑坯预塑的颈部进行加热而结晶化时,将塑坯预塑的颈部迅速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醇酯树脂时,则是迅速升温至摄氏200度~摄氏230度左右的温度为止。 When that is, when manufactured synthetic resin bottle-shaped container of the present invention, on the occasion of the neck of the preform is heated and crystallized, the preform neck quickly warmed to the melting point of the synthetic resin Before the temperature is reached, wherein when the synthetic resin is polyethylene terephthalate resin, it is rapidly heated to a temperature of 200 Celsius degrees to 230 degrees Celsius is reached. 接着将塑坯预塑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醇酯树脂时,则是将温度维持于摄氏170度~摄氏195度左右的温度。 Next, the temperature of the neck of the preform is maintained at promotes its crystallization temperature range of synthetic resin, wherein, when the synthetic resin is a polyethylene terephthalate resin when, sucked the temperature was maintained at Celsius 195 degrees around the temperature of 170 degrees to Celsius. 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。 By this, the neck of the atmosphere temperature in a stable state, arrives to promote the crystallization temperature range of time, in turn, can reduce the time needed to process crystallized neck, and significantly increase productivity.

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。 When the embodiment of the present invention the occasion, preferably with a heating output of the heater heat treatment, wherein in the first stage of heat treatment, the heating output control at a relatively high level, and in the second stage, the heating output control relatively low level. 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。 In this case, by controlling the heating output of the heater can be easily achieved for the neck in a relatively short time the best crystallization temperature management.

在热处理的该第二阶段中,还包括于塑坯预塑的颈部的外面适用空气喷射器。 In the second stage of heat treatment, it is also included in the pre-plastic preform neck outside air ejector applicable. 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。 In this case, the temperature of the second stage of the neck after the heating output is applied to control the heater, the air from the nozzle through the air flow control and easily maintained at an optimum value, and thus the time can be minimized.

在适用有该空气喷射器之际,较佳是利用挡板遮蔽塑坯预塑的颈部的开口,以阻止空气流入塑坯预塑的颈部内。 There the applicable air ejector occasion, preferred is the use of shutter blocks the opening of the preform neck to prevent air flow into the neck of the preform. 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。 In this case, it can reduce the temperature of the outer and inner surface of the neck of the difference between, in turn, can suppress wrinkles and other surface defects that occur within the opening of the neck.

附图说明 Brief Description

第1图所示为瓶状合成树脂制容器的制造时所使用的塑坯预塑的局部剖面的正面图。 As shown in Fig. 1 when the preform manufacturing a synthetic resin bottle-shaped container is used for pre-plasticized partial cross-sectional front view.

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。 Figure shows the manufacturing method of the present invention when implemented on the occasion, the crystallization heat treatment apparatus for performing a preferred embodiment of the neck 2 a schematic diagram example.

图3所示为线性图标颈部温度变化的时间图。 Fig linear temperature change time icon neck Fig.

附图标记说明:10:塑坯预塑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 Explanation of Symbols: 10: preform 11: neck 11a: Outside 11b: inner surface 12: body 13: the bottom 14: opening 20: heat treatment device 21: pinching device

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醇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,在将对应容器的塑坯预塑,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。 22: Heater 23: Air nozzle 24: controller 25: the bezel to make specific embodiment of the present invention, the above and other objects, features, and advantages will become apparent, especially cite the following preferred embodiments and with attached Figure, as described below: In order to manufacture the present invention having a polyethylene terephthalate bottle-shaped container of the crystalline resin thermoplastic synthetic resin constituted, in the corresponding container preform, home For the body to be used inside the mold, the use of stretch blow Tempered form (biaxially-oriented blowforming), while the second axis, for heating the crystallized neck. 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。 Such manufacturing method using the aforementioned U.S. Patent Application No. 4,375,442 in the case of the specific techniques described.

请参照图1所示,塑坯预塑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,且此塑坯预塑10具有颈部11、主体12及底部13。 Please refer to FIG. 1, the preform 10 is injection molding or extrusion molding materials formed by thermoplastic synthetic resin, and this preform 10 has a neck portion 11, body 12 and a bottom 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。 Neck portion 11 is provided as a container for the injection inlet opening 14, which is applied to a threaded (screw) on the outside 11a, 11b and the inner surface of a smooth surface.

在塑坯预塑10中,颈部11的结晶化处理例如是在塑坯预塑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。 In the preform 10, the neck 11 of the crystallization process, for example, in the preform before biaxial stretch blow 10 Make-shaped heat treatment apparatus shown in FIG. 2 20. This crystallization process. 此热处理装置20是具有略成圆筒状的挟持器(holder)21。 This heat treatment device 20 into a cylindrical shape having a slightly pinching device (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。 Clamp 21 can follow the vertical shown in Figure 2 is rotated in the direction of arrow periphery of the central axis. 挟持器21为可拆装的用以保持塑坯预塑10的物体,其可在暴露出颈部11的状态下,包覆塑坯预塑10的主体及底部13。 Clamp 21 is removable for holding the preform body 10, which may be in a state exposed neck 11, clad preform body and the bottom 10 of the 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。 Projecting from the pinching device 21 and the pair 11 to a position on the neck, a heater is disposed on one side (heater) 22, an air nozzle is arranged on the other side (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。 Heater 22, for example, the use of near-infrared heater or far infrared heater. 空气喷嘴23较佳是具有流出孔(orifice),此流出孔是与塑坯预塑10的中心轴线平行延伸且具有线性的截面形状。 Air nozzle 23 preferably having outflow hole (orifice), this outflow hole with the preform 10 extends parallel to the central axis and having a linear cross-sectional shape. 加热器22及空气喷嘴23可通过控制器24进行自动控制。 Heater 22 and air nozzles 23 may be automatically controlled by the controller 24. 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。 In addition, the neck portion 21 projecting above the pinching device 11 from the opening of the neck is configured with shielding baffle 11 25 14. 挡板25较佳是具有用以对来自空气喷嘴23的空气喷射器的流动进行适当导引的侧板的功能。 Bezel 25 is preferably used to having air flow from the air jet nozzle 23 is appropriately guided side functions.

在图2所示的热处理装置20中,可借着沿保持有塑坯预塑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突出的塑坯预塑10的颈部11进行加热。 In the heat treatment apparatus 20 shown in FIG. 2, it may, by direction of the preform is held hostage 10 of the periphery of the central axis of rotation of the heater 21 will be 22 action, and then highlight the preform 21 from the pinching device pre-plastic neck 10 of 11 for heating. 再者,对应必要时,空气喷射器从空气喷嘴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。 Further, when necessary, the corresponding air jet jetted from the air nozzle 23 to the outside of the neck 11a 11 so that the surface temperature of the neck portion 11 of the stable described later maintained within a predetermined range. 而且,挡板25可通过遮蔽颈部11的开口14,而在适用于空气喷射器之际,阻止空气流入塑坯预塑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。 Further, the baffle 25 can be masked by the neck 11 of the opening 14, and applied to an air jet in the occasion, to prevent flow of air into the preform neck portion 10 of the inner 11 and outer 11a and the reduced neck portion 11 of the inner surface 11b the temperature difference between.

图3所示为线性图标颈部温度变化的时间图。 Fig linear temperature change time icon neck Fig. 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。 Wherein, the solid line shows the temperature change Ta crystallization process of the present invention, when, and that the chain line shows the temperature change Tb known crystallization processing time.

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迅速上升至构成塑坯预塑的合成树脂的融点之前的温度T3为止。 In the present invention, the solid line Ta 3 we can see, when the heating of the neck 11 of the occasion, in the first phase from the beginning of the heating time point (time t = 0 ~ t1) in the surface of the neck 11 temperature T rose rapidly to constitute a melting point of the preform of synthetic resin before the temperature T3 so far. 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。 In the next second phase (time t = t1 ~ t2), the surface temperature T of the neck portion 11 can be reduced to an effective temperature to promote crystallization of the synthetic resin field R (T1≤T≤T2) inside, and The temperature is maintained within this temperature field R, for crystallization, and the thing was complete crystallization.

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。 On the other hand, it is known that the chain line as shown in FIG. 3 Tb, when the neck 11 is heated on the occasion, the neck 11 of the surface temperature T will start heating from the time point (t = 0) begin slowly warmed to R in the above temperature field. 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。 That result alone rises, completion time point crystallization process t = t3 later than the completion time point of the present invention is 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。 In other words, the present invention is the time required for the crystallization process than the known art Δt = t3-t2 shorter time.

接着,以塑坯预塑10由聚对苯二甲酸乙二醇酯树脂所构成的情形为例,进行更具体的说明。 Then, the preform 10 is made of polyethylene terephthalate resin case constituted, for example, a more specific description. 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,从开始迅速上升至融点之前的温度T3220℃为止。 In the present invention, the neck portion of the surface temperature T 11 in the first stage of the crystallization process (time t = 0 ~ t1), the rapid rise from the beginning to the melting point temperature before T3220 ℃ reached. 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T2190℃至T1170℃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。 Subsequently, in the second stage (time t = t1 ~ t2), and can be reduced to effectively promote crystallization temperature areas R T2190 ℃ to T1170 ℃ between (T1≤T≤T2) up, and the temperature was maintained at that temperature field within R.

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)。 To do this, preferably by the heater 24, such as output controller 22, in the first phase, the control at a relatively high level (when the maximum output of 2kW heater circumstances, the maximum output of about 95 around%), and in the second phase, the control at a relatively low level (when the maximum output of 2kW heater was the case, is about 70% of the maximum output). 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。 In this case, the controller 24 controls the heating output of the heater 22, so that the neck 11 can easily achieve optimal crystallization temperature management in a short period of time. 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。 Furthermore, the heating output of the heater 22 may be changed continuously using a step change in the aforementioned substituted by the first stage to the second stage.

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,空气喷射器从空气喷嘴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。 In the crystallization process of the second stage, in order to make the surface temperature T 11 of the neck portion is maintained at a stable temperature within said field R, so that the heating output of the heater 22 need to be controlled, and if necessary a corresponding air ejector from air nozzle 23 is ejected to the outside of the neck 11a 11 so that the surface temperature of the neck portion 11 of the stable maintained within a predetermined range to be described later. 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。 In this case, the baffle 25 can be masked by the neck 11 of the opening 14, while preventing the flow of air into the neck 11, thereby preventing the occurrence of defects in the inner surface 14 of the opening 11 of the neck wrinkles and so on.

对由聚对苯二甲酸乙二醇酯树脂所构成的塑坯预塑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。 To preform made of polyethylene terephthalate resin composed of 10 in terms of pre-plastic, when properly and operation of the air nozzle 23 to a heater 22 is controlled, crystallized neck 11 of the time required , the experiment proved, than the above known technology to shorten about 30% of the time.

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。 It is apparent from the above description that the present invention is to provide a synthetic resin bottle-shaped container of new manufacturing technologies to take advantage of a relatively short time a crystallization process of the container neck. 其结果显示可以达成将生产效率大幅提高的目的。 The results are shown to substantially increase production efficiency to achieve the goal.

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塑坯预塑10的二轴延伸吹炼成形的方式变更为先进行塑坯预塑10的二轴延伸吹炼成形,再对颈部11施加结晶化处理。 In addition, although the invention has been disclosed as a preferred embodiment, however it is not intended to limit the present invention, any person skilled in the art, without departing from the spirit and scope of the present invention can be used for a variety of modifications and retouching, for example, can be applied to the above-described preferred embodiments of the first crystallization process is disclosed for example in the neck 11 of the preform then biaxial stretch blow Make way shape 10 is changed to first carry out the preform 10 Make biaxial stretch blow shape, then applying crystallization process of the neck 11.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
CN102905872A *23 May 201130 Jan 2013日精Asb机械株式会社Preform opening crystallization method
CN102905872B *23 May 201112 Aug 2015日精Asb机械株式会社预成形坯的口部结晶化方法
US923834126 Nov 201219 Jan 2016Nissei Asb Machine Co., Ltd.Preform neck crystallization method
Legal Events
DateCodeEventDescription
11 Aug 2004C06Publication
20 Oct 2004C10Request of examination as to substance
4 Jun 2008C14Granted