CN100406234C - 模型孔道有空气扰动的管子模压设备 - Google Patents
模型孔道有空气扰动的管子模压设备 Download PDFInfo
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Abstract
一种挤压长度连续的空心塑料产品的挤压设备,具有一个挤压机,该挤压机将熔化塑料通过模具装备输送到模型孔道内,模型孔道由多个边靠边排列的活动模型块构成。该挤压设备包括在模型孔道内的产品内的空气扰动设施。空气扰动是由一个位于模型孔道内的空气驱动件和一个空气驱动件的动力源提供的。动力源位于模型孔道之外,设有一个动力转移设施可将动力从动力源通过模具装备输送到空气驱动件而不冷却模具装备。
Description
技术领域
本发明涉及一种模压设备,该设备使用活动模型孔道、具有内部空气扰动来帮助形成模型孔道内产品的形状。
背景技术
已知在使用活动模型孔道的塑料挤压机中,重要的是要在模型孔道内提供有效的冷却。需要这么作是因为活动模型孔道在长度上短于固定的挤压机。
加拿大安大略州多伦多市的Corma公司在过去几年来曾研发各种不同的冷却方法来冷却在活动模型孔道挤压机内制出的塑料管。其中某些方法系将空气从模型孔道的下游端沿着向上游的方向推进到模型孔道内。Corma公司曾避免采用沿着向下游的方向将冷却空气送到模型孔道内,因为这样必然要使冷却空气流动通过实际的模具装备并且不合适地将它冷却,还会将冷却空气加热,这个模具装备必须保持在加热状态下以便使熔化的塑料合适地流动通过模具装备来到模型孔道内。
发明内容
Corma公司后来发现在使用活动模型孔道的挤压机内制造的管子,可只用在模型孔道内的空气扰动来促使模型孔道内的形状形成,而可不必增添另外的空气扰动冷却。
根据Corma公司的发现,本发明涉及一种挤压设备,它能挤压在长度上连续的空心塑料产品如塑料管或类似物并具有模型孔道内的空气扰动。该设备包括一个将熔化塑料通过模具装备输送到模型孔道内的挤压机,模型孔道由多个边靠边排列的活动模型块构成。塑料产品是在模型孔道内被成形的。该设备包括提供空气扰动的设施可促使产品的形状形成。提供空气扰动的设施包括一个空气驱动件,该驱动件实际上位于模型孔道内的产品内。该驱动件还设有一个动力源,但该动力源位于模型孔道之外,并且通过一个动力转移设施将来自动力源的动力通过模具装备输送给空气驱动件。所述模型孔道被构造成使得从模型孔道下游端流入的冷却空气又从模型孔道的下游端流出。
如上所述,按照本发明没有流动空气通过模具装备,也不会有冷却模具设备的有害影响。相反地,即使空气驱动件的动力源位于模型孔道之外,唯一的空气流动却是在模型孔道内用动力转移设施将来自动力源的动力通过模具装备输送给空气驱动件造成的。这个转移设施不会使模具装备产生任何有害的冷却。
从动力源通过在模型孔道上游的模具装备将动力输送到空气驱动件便可不再需要在孔道的下游端设置增添的工作设备,而在下游端要设置这种工作设备也是很难定位的,因为产品不断地通过孔道的下游端向外输出。
附图说明
下面结合本发明的实施例较详细地说明本发明的优点和细节。在附图中:
图1为按照本发明的一个优选实施例的、具有活动模型孔道、可将空气扰动引入到模型孔道内的塑料管挤压机的略图;
图2为图1中模型孔道的内部区域的放大图;
图3和图5分别为按照本发明另外两个优选实施例的、具有下游端扰动特点的、可被引用到一个具有活动模型孔道的塑料管挤压机内的模具装备的侧视图;
图4和图6分别为图3和图5中模具装备的下游端的放大图;
图7为按照本发明另一个优选实施例的、用于塑料管挤压机的模具装备的下游端的放大图。
具体实施方式
图1示出的管子挤压设备1包括一个将熔化塑料沿着模具装备5供应到活动模型孔道7的挤压机3。这个模型孔道是由孔道对侧的模型块段9构成的。模型块段相互边靠边地移动并密切地环绕模具装备的下游端,从而提供一条模压路径以资形成一个在长度上连续的塑料管15。在模具装备5的下游端有一冷却塞13,来自模具装备的塑料在其上走过,冷却塞用来帮助形成管子的形状,由于通过模型块的吸力,管子还被贴合在模型的型面上。
按照本发明,空气扰动是当管子还在模型孔道内时在管子15的内部造成的,这个空气扰动有助于使还在模型孔道内的管子的形状形成。
空气扰动是用一个空气驱动件如转子17来完成的,该转子实际上位于管子内冷却塞13的下游端。较好地从图2来看图1所示实施例中的转子17,该转子包括一个旋转轮,在轮周具有多个叶片18。该轮被一驱动轴19转动,该驱动轴通过模具装备5中心的孔道6然后通过冷却塞13中心的孔道14配装到转子17上。
轴19有一位于模具装备上游端的上游端并被一位于模具装备外侧的电动机23转动。电动机23由电源21通过导线25供给电力。
图3示出在模型孔道内的转子的驱动机构的一种修改的型式。较具体点说,图3示出模具装备31和联结的冷却塞41,造成扰动的转子33设在冷却塞41的下游端。在本例中,转动转子33的电动机35直接位于转子旁。冷却塞41在其下游端有一凹部给电动机35提供安装支承。电动机35包括一根延伸到转子33的轴34。
提供电力给电动机35的线路39系按向上游的方向通过冷却塞41的中央,再向后通过设在模具装备31内的中央孔道37,然后连接到设备外侧的电源上。
在上述这两种情况下,转子都是由电动机操作的。在其中一个例子内电动机位于模具装备和模型孔道的外侧,而在另一个例子内电动机直接位于模型孔道内。但在这两种情况下,供给电动机的电力源都位于模具装备的外侧,并且没有一种情况显示从电源到转子的连接会对模具装备产生冷却作用。
图5和6示出本发明另一个优选的实施例。按照这个实施例,叶轮空气驱动件65设在冷却塞58的下游端,而冷却塞又设在模具装备51的下游端。在使用时冷却塞、模具装备的下游端和叶轮65都位于塑料挤压机的活动模型孔道内。
在这特殊的实施例中,模具装备51有一中央管道53将压力水输送到螺旋形盘绕在冷却塞58上的封闭蛇管59内。环绕输水通道53,模具51被很好地绝缘,以资确保模具不会被水有害地冷却,还要确保该水在抵达冷却塞之前不会被模具显著地加热。
按照本发明,流动通过模具然后流动通过冷却塞的压力水从冷却塞排出到另一条流动管线61。这条流动管线将仍然有压力水的水导到一个水涡轮63内。水涡轮63通过驱动轴64连接到叶轮65上。该水涡轮被密封使在涡轮内的水不会逸出到模型孔道内,而是在水的出口67离开涡轮,然后通过模具装备51内的通道53往回流动。
驱动涡轮63和转动转子65的水压源设在模具装备之外。在本例中,压力水的流动提供从压力水源通过模具装备到涡轮和转子的动力转移。
所说转子在所说模型孔道内被一与所说转子邻近的水涡轮驱动,所说动力转移件包括一条通过所说模具装备和所说冷却塞的流动管道,将位于所说模具装备之外的压力水源在压力下发放给流动管道的水输送到所说水涡轮上。
所述的挤压设备包括一个供水源,用来将水添加到在管内被所说空气驱动件驱动的空气内。
图7示出本发明另一个实施例。按照这个实施例,有一空气扰动系统71用来协助使塑料挤压机的模型孔道内的塑料管P的形状形成。扰动系统71包括一种推进器式的叶片,由多个叶片件构成,每一个叶片件都有一个较大的外叶片部73和一个较小的内叶片部75固定在驱动轴77上。驱动轴77居中地通过挤压设备的冷却塞79和模具装备81向上游方向延伸。再一次可见,用来转动轴77和装在轴上的推进器式叶片的动力供应源位于模具装备之外。
在这特殊的实施例中,推进器的叶片造成一个极其有效的空气流动模式。较具体点说,外叶片部73造成的扰动大于内叶片部75造成的扰动。这样便产生一个在模型孔道内的空气流动模式,其中被叶片部推动的空气如箭头74所示为压力较高的空气被迫沿着管子P的内表面向下游的方向流动。这个沿着管子的空气扰动可促使在模型孔道内的管子的形状形成。
在管子内沿着管子流动的空气由于接近管子被加热并被叶片驱赶从开启的模型孔道的下游端流出。同时叶片的内叶片部75所产生的空气压力比外叶片部73低得多,从而起到负压吸入空气的作用,因此内叶片部能按箭头75的方向即向上游的方向从模型孔道的外侧将较冷的空气吸入到孔道的开口端内。这样吸入的空气可作为被叶片向下游方向移出空气的补充并且有一个好处即比移出的空气冷。
如果在模型孔道内的管子需要添加形成的程度,那么还可把用于冷却管子的目的按规范冷却的补充空气从模型孔道的下游端引入。另外,水分如在81所示可被加入到补充空气内以资给模型孔道内的管子提供进一步的冷却。
虽然在上面已就本发明的各个优选实施例详细说明,但应知道在不离开本发明的创意和权利要求所限定范围的条件下,本行业的行家是能够作出各种变化的。
Claims (11)
1.一种挤压设备,它能挤压在长度上连续的空心塑料产品,所说设备包括一个将熔化塑料通过模具装备输送到模型孔道内的挤压机,模型孔道由多个边靠边排列的活动模型块构成,塑料产品是在模型孔道内被成形的,所说设备包括提供空气扰动的设施可促使产品的形状形成,所说设施包括一个空气驱动件、该驱动件位于模型孔道内的产品内,该驱动件还设有一个动力源,所说动力源位于模型孔道之外,并且通过一个动力转移设施将来自所说动力源的动力通过模具装备输送给所说空气驱动件;所述模型孔道被构造成使得从模型孔道下游端流入的冷却空气又从模型孔道的下游端流出。
2.如权利要求1所述的挤压设备,其特征在于,所说设备具有一个能造成真空的塑料管挤压机,该挤压机在模型孔道内包括一个冷却塞,产品为在模型块和冷却塞之间成形的空心管,所说空气驱动件位于冷却塞的下游并与它邻近,所说动力转移系通过冷却塞输送到空气驱动件。
3.如权利要求1所述的挤压设备,其特征在于,所说空气驱动件包括一个转子。
4.如权利要求3所述的挤压设备,其特征在于,所说转子包括一个叶轮。
5.如权利要求3所述的挤压设备,其特征在于,所说转子包括多个具有内叶片部和外叶片部的叶片,每一所说叶片都装在所说内叶片部上再装到一根公共的安装轴上以资转动所说叶片,所说内、外叶片部被这样安排,使所说外叶片部提供比内叶片部大的正空气压力,从而在内叶片部产生低压空气吸力。
6.如权利要求5所述的挤压设备,其特征在于,所说模型孔道具有一个开启的下游端,由所说转子产生的正空气压力使空气沿着管子通过孔道的下游端排出,而低压空气吸力使新鲜的补充空气通过孔道的下游端吸入到孔道内。
7.如权利要求3所述的挤压设备,其特征在于,所说动力转移件包括一根通过所说模具装备和冷却塞延伸到所说转子的旋转轴。
8.如权利要求7所述的挤压设备,其特征在于,包括一个用来转动所说轴的电动机,所说电动机位于所说模具装备之外并接受来自电源的电力。
9.如权利要求3所述的挤压设备,其特征在于,包括一个用来转动所说转子的电动机,所说电动机在所说模型孔道内与转子连接,所说动力转移件包括一条通过所说模具装备和所说冷却塞从电力源延伸到所说电动机的导线。
10.如权利要求3所述的挤压设备,其特征在于,所说转子在所说模型孔道内被一与所说转子邻近的水涡轮驱动,所说动力转移件包括一条通过所说模具装备和所说冷却塞的流动管道,将位于所说模具装备之外的压力水源在压力下发放给流动管道的水输送到所说水涡轮上。
11.如权利要求3所述的挤压设备,其特征在于,包括一个供水源,用来将水添加到在管内被所说空气驱动件驱动的空气内。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002412066A CA2412066A1 (en) | 2002-11-18 | 2002-11-18 | Pipe molding apparatus with mold tunnel air turbulence |
CA2,412,066 | 2002-11-18 |
Publications (2)
Publication Number | Publication Date |
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CN1500615A CN1500615A (zh) | 2004-06-02 |
CN100406234C true CN100406234C (zh) | 2008-07-30 |
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CNB031037542A Expired - Fee Related CN100406234C (zh) | 2002-11-18 | 2003-02-18 | 模型孔道有空气扰动的管子模压设备 |
CNU032034016U Expired - Lifetime CN2728744Y (zh) | 2002-11-18 | 2003-02-18 | 模压设备 |
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Application Number | Title | Priority Date | Filing Date |
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CNU032034016U Expired - Lifetime CN2728744Y (zh) | 2002-11-18 | 2003-02-18 | 模压设备 |
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US (1) | US7267535B2 (zh) |
EP (1) | EP1562731B1 (zh) |
JP (1) | JP4526950B2 (zh) |
CN (2) | CN100406234C (zh) |
AT (1) | ATE361189T1 (zh) |
AU (1) | AU2003280265B2 (zh) |
CA (1) | CA2412066A1 (zh) |
DE (1) | DE60313654T2 (zh) |
DK (1) | DK1562731T3 (zh) |
ES (1) | ES2285204T3 (zh) |
MX (1) | MXPA05005294A (zh) |
NO (1) | NO20052996L (zh) |
NZ (1) | NZ540535A (zh) |
PL (1) | PL208275B1 (zh) |
PT (1) | PT1562731E (zh) |
RU (1) | RU2339515C2 (zh) |
WO (1) | WO2004045829A1 (zh) |
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JP5088441B1 (ja) * | 2011-12-22 | 2012-12-05 | 富士ゼロックス株式会社 | 管状体の製造装置、管状体の製造方法 |
JP5088442B1 (ja) * | 2011-12-22 | 2012-12-05 | 富士ゼロックス株式会社 | 管状体の製造装置、管状体の製造方法 |
CN106738824B (zh) * | 2016-12-19 | 2023-06-02 | 吉林经济技术开发区城发集塑管业股份有限公司 | 市政塑料检查井脱膜冷却装置及冷却方法 |
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DE2455779A1 (de) * | 1974-11-26 | 1976-08-12 | Johannes Weber | Verfahren und vorrichtung zum abkuehlen von oberflaechen an extrudierten profilen aus kunststoff |
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WO1997038844A1 (en) * | 1996-04-17 | 1997-10-23 | Conenor Oy | Method and arrangement for cooling an extruded hollow product |
WO1998052739A1 (en) * | 1997-05-20 | 1998-11-26 | Lupke Manfred Arno Alfred | Method and apparatus for making plastic pipe without mechanical pressure on inner pipe wall |
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CA1172813A (en) * | 1982-06-16 | 1984-08-21 | Lupke, Manfred A. A. | Apparatus for producing multi-walled thermoplastic tubing |
JPS5924633A (ja) * | 1982-08-02 | 1984-02-08 | Mitsui Petrochem Ind Ltd | 超高分子量ポリエチレンパイプの製造方法及びパイプ成形用ダイ |
US4500284A (en) * | 1983-09-16 | 1985-02-19 | Lupke Manfred Arno Alfred | Forming single wall bells in double wall pipe |
SE449456B (sv) * | 1983-11-15 | 1987-05-04 | Uponor Ab | Forfarande och anordning for framstellning av ror varvid formbacksdelarna er delade i formstreckans lengsriktning |
JPS62140816A (ja) * | 1985-12-13 | 1987-06-24 | Sekisui Chem Co Ltd | 熱可塑性樹脂管の製造方法および製造装置 |
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PT1363766E (pt) * | 2001-03-02 | 2007-10-22 | Manfred Arno Alfred Lupke | Processo e dispositivo para o fabrico de um tubo termoplástico de parede dupla com uma luva de ligação de tubo |
-
2002
- 2002-11-18 CA CA002412066A patent/CA2412066A1/en not_active Abandoned
-
2003
- 2003-02-18 CN CNB031037542A patent/CN100406234C/zh not_active Expired - Fee Related
- 2003-02-18 CN CNU032034016U patent/CN2728744Y/zh not_active Expired - Lifetime
- 2003-11-12 WO PCT/CA2003/001720 patent/WO2004045829A1/en active IP Right Grant
- 2003-11-12 AT AT03770832T patent/ATE361189T1/de active
- 2003-11-12 ES ES03770832T patent/ES2285204T3/es not_active Expired - Lifetime
- 2003-11-12 PL PL376375A patent/PL208275B1/pl unknown
- 2003-11-12 RU RU2005114740/12A patent/RU2339515C2/ru not_active IP Right Cessation
- 2003-11-12 EP EP03770832A patent/EP1562731B1/en not_active Expired - Lifetime
- 2003-11-12 JP JP2004552300A patent/JP4526950B2/ja not_active Expired - Fee Related
- 2003-11-12 PT PT03770832T patent/PT1562731E/pt unknown
- 2003-11-12 NZ NZ540535A patent/NZ540535A/en not_active IP Right Cessation
- 2003-11-12 US US10/534,739 patent/US7267535B2/en not_active Expired - Lifetime
- 2003-11-12 MX MXPA05005294A patent/MXPA05005294A/es active IP Right Grant
- 2003-11-12 DE DE60313654T patent/DE60313654T2/de not_active Expired - Lifetime
- 2003-11-12 DK DK03770832T patent/DK1562731T3/da active
- 2003-11-12 AU AU2003280265A patent/AU2003280265B2/en not_active Ceased
-
2005
- 2005-06-17 NO NO20052996A patent/NO20052996L/no not_active Application Discontinuation
Patent Citations (5)
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DE2455779A1 (de) * | 1974-11-26 | 1976-08-12 | Johannes Weber | Verfahren und vorrichtung zum abkuehlen von oberflaechen an extrudierten profilen aus kunststoff |
US4319872A (en) * | 1976-12-01 | 1982-03-16 | Lupke Gerd Paul Heinrich | Apparatus for producing thermoplastic tubing |
US5525289A (en) * | 1995-01-30 | 1996-06-11 | Lupke; Manfred A. A. | Method and apparatus for cooling hollow molded product |
WO1997038844A1 (en) * | 1996-04-17 | 1997-10-23 | Conenor Oy | Method and arrangement for cooling an extruded hollow product |
WO1998052739A1 (en) * | 1997-05-20 | 1998-11-26 | Lupke Manfred Arno Alfred | Method and apparatus for making plastic pipe without mechanical pressure on inner pipe wall |
Also Published As
Publication number | Publication date |
---|---|
ES2285204T3 (es) | 2007-11-16 |
AU2003280265A1 (en) | 2004-06-15 |
NO20052996L (no) | 2005-08-02 |
EP1562731A1 (en) | 2005-08-17 |
CN1500615A (zh) | 2004-06-02 |
NO20052996D0 (no) | 2005-06-17 |
WO2004045829A1 (en) | 2004-06-03 |
DK1562731T3 (da) | 2007-09-17 |
DE60313654T2 (de) | 2008-01-10 |
JP2006506251A (ja) | 2006-02-23 |
MXPA05005294A (es) | 2005-08-16 |
RU2339515C2 (ru) | 2008-11-27 |
AU2003280265B2 (en) | 2008-12-18 |
CN2728744Y (zh) | 2005-09-28 |
EP1562731B1 (en) | 2007-05-02 |
JP4526950B2 (ja) | 2010-08-18 |
RU2005114740A (ru) | 2006-01-20 |
DE60313654D1 (de) | 2007-06-14 |
ATE361189T1 (de) | 2007-05-15 |
US20060013911A1 (en) | 2006-01-19 |
US7267535B2 (en) | 2007-09-11 |
PL376375A1 (en) | 2005-12-27 |
PT1562731E (pt) | 2007-06-18 |
CA2412066A1 (en) | 2004-05-18 |
PL208275B1 (pl) | 2011-04-29 |
NZ540535A (en) | 2007-10-26 |
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