CN1068290C - 防蠕变的填缝枪和枪弹 - Google Patents
防蠕变的填缝枪和枪弹 Download PDFInfo
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Abstract
具有防蠕变的填缝枪和枪弹的组合设备。填缝弹具有管体(8)、在管体前端的前喷口(9)、可活动的设置在管体(8)内的后壁(11、12)。填缝枪具有容纳填缝弹的槽体(1),活塞(4)作平行于槽体(1)的运动,扳机柄(23)用来向前推动管体内的后壁(11),并且使填缝弹内的腔室(13)容积减小。后壁在管体内作基本上无接触的滑动,最好通过相对管体(8)的内径(ID)减小后壁(11)的直径(OD),使在驱动后主体径向缩回时后壁被向后推动。此外,可防止填缝弹体膨胀甚至被挤压,从而完全防止由于管体的容织减小而造成的蠕变现象。
Description
本发明涉及填缝枪和喷布弹,更具体地说,本发明涉及一种材料喷布器,其中喷布弹放入枪装置中,活塞从喷布弹后端向前推进柱塞,从而减少在喷布弹内的材料的有效体积,并且自喷布弹前面的开口端部挤压喷布材料。
这些类型的填缝枪存在不希望有的蠕变问题,即在柱塞不再主动的向前推动以后,喷布弹内部一直经受过压,其结果是额外量的喷布材料自喷布弹中被挤压出。
关于蠕变现象的公认的两个主要原因是,首先,按照物理定律,***总是试图恢复到它的松弛状态,通常的薄壁喷布弹在柱塞驱动期间膨胀,而在柱塞驱动以后,喷布弹壁松驰。因为事实上现有技术中的喷布弹后壁已被设计成保持在它的最前方位置,并且填缝枪的柱塞采用典型的锁定的方式以防止返回移动,喷布弹壁的松驰导致蠕变,即导致喷布端嘴的渗漏。其次,绝大多数填缝材料具有很高程度的粘性,并且至少在一定程度上是可压缩的,柱塞一旦驱动,则喷布弹内材料的实际内压上升,而柱塞不再被向前推动后,也导致喷布端嘴处渗漏。
上述的蠕变问题,在惯用的现有技术装备中常常是这样解决的,即一旦足量的材料已经被喷布,就把填缝枪的柱塞迅速释放并使其作返回运动。
Galex的美国专利5,236,105描述了防止过量喷射的新颖的装置。在该装置中,对例如凹入元件、凸出元件、回位弹簧以及制动元件等数个元件进行了改进。回位弹簧用作主动的偏压元件,它主动的把喷布弹的后壁拉回,因此,在喷布弹内产生一个相对真空。
Keller的美国专利4,834,268描述了一个柱塞装置,其中通过一径向分力把弹性密封环推向喷布弹的内壁面,该径向力促使柱塞在喷布过程中向前移动。当柱塞不再被致动,密封环稍稍松驰,并且使柱塞减弱喷布弹内的压力。
首先上面提及的防止蠕变的方法显然是不能令人满意的。在上述两个专利中描述的装置是相当复杂且相当昂贵的。
本发明的目的是提供一个填缝枪和防止蠕变的枪弹,它克服了现有技术装置和这种类型的方法的上述缺陷。主要目的是提供既简单而叉廉价的装置,该装置可应用到广泛系列的枪弹和填缝枪上,并且它能够可靠地防止蠕变或者过量喷射。
本发明的上述和其它目的是,提供一改进的填缝弹,它具有大致呈管状的主体、位于管体前端的前喷嘴、可移动地设置在管体内的后壁、管体具有一个以内壁面限定管体内径的壁、和以内壁面、前端和后壁为界限定的一个腔室。所限定的本发明的改进在于后壁具有小于管体内径的直径,并且在内壁面和后壁圆周之间确定一个基本上无接触的间隔距离。
按照本发明的附加特征,无接触的距离至少是0.2mm,并且它可以大于1mm。
按照本发明的另一个特征,提供设置在后壁圆周上的间隔突起物,间隔突起物与管体内壁面接触,并且限定间隔距离。
按照本发明的上面的和其它目的,也提供填缝枪和枪弹组合。填缝弹具有一个基本上呈管状的主体、位于管体前端的前喷嘴、可移动置于管体内的后壁、管体在前端和后壁之间限定一个腔室。因此填缝枪包括构成用来容纳填缝弹的槽体、以及在管体内进行与槽体相平行的移动以便向前推动后壁的活塞,活塞的向前移动使得填缝弹内腔室的容积减小。管体具有以其内壁面限定管体内径的壁,后壁具有小于管体内径的直径,并在内壁面和后壁之间限定一个基本上无接触的空间距离。
按照本发明的另一个特征,在柱塞推动后壁向前时,所提供的装置可操作的与枪弹管体相联系,以防止管体径向膨胀。这种防止装置可以呈紧紧套在管体上的刚性套筒形式,例如通过把喷布枪弹滑入套筒的方法。
按照本发明的另外一个特征,套筒是以包含PVC(聚氯乙烯)、纤维增强塑料和金属的一组材料中所选择的坚硬材料制成。
按照本发明的再一个特征,防止管体径向膨胀的装置是一个安装在填缝枪槽体的夹紧机构,以用来选择性的挤压喷布枪弹的管体。
按照本发明所造成的特征,填缝枪具有扳机柄,用来把活塞推向前方以便喷布填缝材料,并且夹紧机构连接到填缝枪的扳机柄上,这样在活塞向前推进后壁的同时挤压管体。
认为是本发明的其它特征在所附的权利要求书中予以陈述。
尽管本发明在文章中对具有防止蠕变的填缝枪和枪弹作了具体图示和描述,但绝不意味着对本发明的细节作任何限制,因为可以做出任何变更和结构改变,而不会脱离本发明的实质和与权利要求书等同的保护范围。
然而,本发明的结构以及与其相关联的所附的目的和优点,在下面结合附图的具体实施例的描述中将能够更好地理解。
图1是现有技术中的填缝枪的透视图;
图2是现有技术中的填缝枪弹的纵截面图;
图3是按照本发明的第一个实施例的填缝弹的类似截面图;
图4是本发明第二个实施例的填缝弹的后壁的后视图;
图5是沿图4V-V线的截面图;
图6是相应于图4和图5实施例的活塞的正视图;
图7是本发明的第三个实施例的刚性套筒的纵截面图;
图8是填缝枪的槽体的示意性正视图;
图9是具有挤压机构的填缝枪的侧视图;
现在首先参照附图尤其是图1详细描述本发明,图1示出了现有的填缝枪。前体1具有槽2,槽2容纳填缝弹。活塞杆3把活塞头4推向槽2的前端壁5。制动块6阻止活塞杆3向后移动,弹簧7把制动块6偏压进入锁定位置。借助摆动制动块6向前进入基本上垂直的释放位置,而放松活塞杆3并使其向后移动。
参照图2,典型的现有技术填缝管具有管体8,通常管体8为圆柱形,其由纸层、纤维塑料、滚压金属板或者类似材料制成。圆柱形管8相当柔软,随其内腔的压力的增加而迅速膨胀,喷嘴端9位于前盖壁10上。圆柱形管8用后挡板11气密性的闭合在后端,后挡板11的圆柱形外突缘12具有与管8内径相对应的外径。突缘12在管体8的内壁面和后壁11之间构成滑动密封。带有圆柱形密封突缘15的加强环14卡紧在管8的后端缘。储存时后壁11直接地紧靠环14固定配置。从而突缘12被卡在密封突缘15的下面。仅在前盖壁10被刺穿并且喷嘴端9被切开形成喷填器开口以后,后壁11才被推向前以便喷布填缝材料13。
当将后壁11向前推并且突缘12沿管8内壁面滑动时,由于管8内腔压力增加,填缝材料13从喷布端头挤出。除了把填缝材料推出喷布端头以外,增大了的压力也引起管体径向膨胀。事实表明,在圆柱形管壁的径向压力正好是朝向喷布开口的轴向作用压力的两倍。当活塞4不再致动时,管8的这种径向“呼吸”产生蠕变,管8向松弛位置弹性地松弛其增大了的直径。
参照图3,其示出了本发明的第一个实施例,圆柱形突缘12的外径OD比管8的内径ID要小间隙△D。间隙△D根据填缝材料13予以选择,即根据材料的粘性和它与空气的反应率。换句话说,材料的粘性越高,间隙△D越大。另外,材料相对于大气的惰性越大,间隙△D越大。通常一般的硅树脂、甘油聚脂、树脂和树脂酸以及类似材料的管子可以具有△D=1mm的间隙。
具有较高粘性的材料的管子,其△D小于或等于0.2mm。合适的间隙可以由该技术领域普通技术人员选择。
突缘12和管子8的内壁面借助于少量的填缝材料形成无接触密封,填缝材料能够在突缘12和管子8的内壁面之间渗漏。由于事实上喷布开口的面积基本上比由间隙△D乘以圆周线所限定的面积大,仅使得很少量的填缝材料通过间隙△D漏出。一旦活塞上的压力刚一减低,活塞即后移,后壁11随管壁恢复到达松驰位置。在突缘12和管子8之间的间隙内的填缝材料一直是新鲜的(其粘度保持在最大值)时,后壁11容易滑动。在后壁已经到达其松弛位置(即管体松弛)之后不久,暴露到空气中的其余填缝材料即***化,并因而形成合适的密封。在填缝弹腔室内的其余材料相对于大气而被封闭。
在制造以后,即在最初使用之前的搁置储存期间,按照现有技术中的装置相类似的方式密封后壁11。
因为包含在这种管子的材料一旦与空气接触而固化,这种间隙变得毫无意义,首先具有间隙△D>0.0mm的填缝管装置可能显得不合理。然而,发明者已经能够搞清楚其中的原因,在开动以后,干固材料的密封环在突缘12和管8的内壁面之间形成。在下一个喷布操作期间,当活塞4向前推动后壁,破坏暂时的密封,在突缘12和管8内壁面之间由于柔软的材料而产生滑动密封。在喷布以后,当活塞杆3上的活塞4的压力立刻减弱时,收缩的管8能够向后推动后壁11,不致引起不希望的蠕变。
参照图4,结合第一个实施例的第二个实施例具有主动拉回的特征。突缘12设置两个互相对置的掣子16。在活塞4推入由突缘12限定的开口时,它接合掣子16的后部。当后壁11同样被接合时,通过活塞杆3的拉回能够主动地收缩后壁11。在最佳实施例中(图6)活塞杆4可以设置切口17,切口借助掣子16可选择的接合活塞4。
再参照图4,内管壁表面和突缘12之间的间隙可以由整体地形成于后壁11的圆周上即突缘12上的凸边19所限定。
在第三个实施例中,完全可避免管子8的径向膨胀,其中非弹性套管18在管子8上滑动。非弹性套管18可以由硬聚氯乙烯、纤维增强塑料、金属、或者类似材料制成。套管18的内径按照管子8的外径予以选择。此外,套管18要尽可能制得薄一些,以便使它一直配入填缝枪的槽2中。
参照图8,刚性套管可置于顶盖20上,它活动连接于填缝枪体的槽的边缘。当顶盖20闭合并锁入挂钩21时,刚性套管构成填缝管。
最后,在第四个实施例中,管子8除喷布以外,还由向前推进的后壁11挤压。当不再需要喷布时,放松对管子8的挤压。实际上,在本发明最佳结构的实施例中,填缝枪设置夹紧装置,该装置与向前推进的后壁11同时挤压管子8。如图8和9所示,盖20借助两个带片22予以固定,带片22被连接在挂钩21和具有对置端头的槽体1之间。当拉动扳机柄23以使活塞4推进时,楔块24拉至带片22之下,这样便使带片22夹住盖20,并且因此而迅速地压填缝管8,盖20的直径最好制成比槽略微大一些。这样导致产生稍微呈椭圆截面的间隙,该间隙由填缝枪弹所占据。
尽管在本文中我们已经涉及到“填缝枪”和“填缝材料”,应当认识到许多术语应理解为现有技术中通常使用的术语。即在管状容器中,带有致动容积减小的活塞和采用任何类型的填缝材料的任何这样的喷布器,均易发生上述的蠕变问题。
Claims (9)
1.一种改进型的填缝弹,其具有:一个基本上呈管状的主体、在管体前端的前喷口、可移动的置于管体内的后壁、管体具有以内壁面限定管体内径的壁、和以内壁面、前端面和后壁为界而限定的一个腔室,其特征在于,后壁直径小于管体内径,并且在内壁面和后壁圆周之间限定一个基本上无接触的空间距离,以便在腔室内的压力比腔室外的压力大时,后壁从管体前端向后移开。
2.按照权利要求1的填缝弹,其特征在于所述空间距离至少为0.2毫米。
3.按照权利要求1的填缝弹,其特征在于所述空间距离至少为1.0毫米。
4.按照权利要求1的填缝弹,其特征在于,该填缝弹进一步包括在所述后壁圆周上形成的间隔***件,所述间隔***件与所述管体内壁面接触,并且限定所述间隔空间距离。
5.一种填缝枪和填缝弹的组合设备,所述填缝弹具有一个基本上呈管状的主体、在所述管体前端的向前喷布的喷嘴、装配在所述管体内的可移动后壁、管体在所述前端和所述后壁之间限定一个腔室;
所述填缝枪包括:用于容纳所述填缝弹的槽体,在所述管体内可与所述槽体作平行移动以便向前推动后壁的活塞,从而造成在所述填缝弹的所述腔室内的容积减少;
其特征在于,所述管体具有以其内壁面限定所述管体内径的壁,所述后壁的直径小于所述管体内径,并在所述内壁面和所述后壁之间限定一个基本上无接触的空间距离,以便当腔室内的压力高于腔室外部的压力时,后壁自管体前端向后移开。
6.按照权利要求5的组合设备,其特征在于一刚性管套设置在管体上。
7.按照权利要求6的组合设备,其特征在于所述管套是由坚硬材料制造的,坚硬材料从包含聚氯乙烯、纤维加强塑料和金属的一组材料中选择。
8.按照权利要求5的组合设备,其特征在于,在填缝枪的槽上设置夹紧机构,用来可选择地挤压填缝枪弹的管体。
9.按照权利要求8的组合设备,其特征在于填缝枪具有向前推动活塞的扳机柄,用来喷布填缝材料,所述夹紧装置连接到填缝枪的扳机柄上,以便借助活塞向前推动后壁同时挤压管体。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9401492A NL9401492A (nl) | 1994-09-13 | 1994-09-13 | Methode en onderdeel om navloeien van tubes te voorkomen. |
NL9401492 | 1994-09-13 |
Publications (2)
Publication Number | Publication Date |
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CN1160387A CN1160387A (zh) | 1997-09-24 |
CN1068290C true CN1068290C (zh) | 2001-07-11 |
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CN95195607A Expired - Fee Related CN1068290C (zh) | 1994-09-13 | 1995-09-13 | 防蠕变的填缝枪和枪弹 |
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Country | Link |
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EP (1) | EP0776301B1 (zh) |
JP (1) | JP3650624B2 (zh) |
KR (1) | KR100261341B1 (zh) |
CN (1) | CN1068290C (zh) |
AT (1) | ATE214026T1 (zh) |
AU (1) | AU696083B2 (zh) |
CA (1) | CA2199852C (zh) |
DE (1) | DE69525752T2 (zh) |
DK (1) | DK0776301T3 (zh) |
ES (1) | ES2172598T3 (zh) |
HK (1) | HK1003176A1 (zh) |
MX (1) | MX9701895A (zh) |
NL (1) | NL9401492A (zh) |
NZ (1) | NZ295506A (zh) |
PT (1) | PT776301E (zh) |
RU (1) | RU2141922C1 (zh) |
WO (1) | WO1996008428A1 (zh) |
Cited By (1)
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CN100560339C (zh) * | 2007-01-22 | 2009-11-18 | 东营华创科技有限责任公司 | 聚乙烯玻璃纤维浸脂复合管的制作方法 |
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US20140263403A1 (en) * | 2013-03-15 | 2014-09-18 | Nordson Corporation | Liquid Dispensing Syringe |
PL3038674T3 (pl) * | 2013-08-29 | 2020-07-13 | Shl Medical Ag | Urządzenie do dostarczania leku |
CN104923451B (zh) * | 2014-03-17 | 2019-09-03 | 澳大利亚刷子制品有限公司 | 填缝枪及密封剂筒 |
TWI576167B (zh) * | 2015-04-02 | 2017-04-01 | 翔宣富企業有限公司 | 矽膠槍推件及矽膠槍 |
DE202017107724U1 (de) | 2017-12-19 | 2019-03-21 | Wolfcraft Gmbh | Kolben für eine Kartuschen-Ausdrückvorrichtung |
CN111517013A (zh) * | 2020-06-04 | 2020-08-11 | 沈阳吉畅科技有限公司 | 基于物联网的化工产品生产过程终端控制装置 |
KR102669285B1 (ko) * | 2023-10-11 | 2024-05-24 | 최진기 | 잔여 내용물 토출을 최소화한 카트리지 및 이를 이용한 코킹 건 |
Citations (1)
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US4869403A (en) * | 1987-03-18 | 1989-09-26 | Alfred Fischbach Kg | Cartridge for pasty materials |
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US2731176A (en) * | 1952-01-04 | 1956-01-17 | Crewe Samuel | Extruding applicator for calking compound and the like |
US2889085A (en) * | 1955-07-19 | 1959-06-02 | Harold B Collins | Drive means for calking gun plungers |
US4022355A (en) * | 1976-03-26 | 1977-05-10 | George Sabaka | Cartridge for containing and dispensing viscous material |
DE3723088A1 (de) * | 1987-07-13 | 1989-01-26 | Hilti Ag | Abdichtverfahren |
-
1994
- 1994-09-13 NL NL9401492A patent/NL9401492A/nl not_active Application Discontinuation
-
1995
- 1995-09-13 CA CA002199852A patent/CA2199852C/en not_active Expired - Fee Related
- 1995-09-13 MX MX9701895A patent/MX9701895A/es not_active IP Right Cessation
- 1995-09-13 AU AU38862/95A patent/AU696083B2/en not_active Ceased
- 1995-09-13 DE DE69525752T patent/DE69525752T2/de not_active Expired - Fee Related
- 1995-09-13 EP EP95938109A patent/EP0776301B1/en not_active Expired - Lifetime
- 1995-09-13 NZ NZ295506A patent/NZ295506A/en unknown
- 1995-09-13 RU RU97104730A patent/RU2141922C1/ru not_active IP Right Cessation
- 1995-09-13 KR KR1019970701651A patent/KR100261341B1/ko not_active IP Right Cessation
- 1995-09-13 AT AT95938109T patent/ATE214026T1/de not_active IP Right Cessation
- 1995-09-13 ES ES95938109T patent/ES2172598T3/es not_active Expired - Lifetime
- 1995-09-13 WO PCT/US1995/012371 patent/WO1996008428A1/en active IP Right Grant
- 1995-09-13 CN CN95195607A patent/CN1068290C/zh not_active Expired - Fee Related
- 1995-09-13 DK DK95938109T patent/DK0776301T3/da active
- 1995-09-13 JP JP51043996A patent/JP3650624B2/ja not_active Expired - Fee Related
- 1995-09-13 PT PT95938109T patent/PT776301E/pt unknown
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US4869403A (en) * | 1987-03-18 | 1989-09-26 | Alfred Fischbach Kg | Cartridge for pasty materials |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100560339C (zh) * | 2007-01-22 | 2009-11-18 | 东营华创科技有限责任公司 | 聚乙烯玻璃纤维浸脂复合管的制作方法 |
Also Published As
Publication number | Publication date |
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AU3886295A (en) | 1996-03-29 |
MX9701895A (es) | 1997-06-28 |
CN1160387A (zh) | 1997-09-24 |
JPH10505784A (ja) | 1998-06-09 |
JP3650624B2 (ja) | 2005-05-25 |
HK1003176A1 (en) | 1998-10-16 |
CA2199852C (en) | 2002-08-13 |
DK0776301T3 (da) | 2002-06-24 |
AU696083B2 (en) | 1998-09-03 |
PT776301E (pt) | 2002-08-30 |
ATE214026T1 (de) | 2002-03-15 |
CA2199852A1 (en) | 1996-03-21 |
NL9401492A (nl) | 1996-04-01 |
DE69525752T2 (de) | 2002-10-17 |
KR100261341B1 (ko) | 2000-07-01 |
WO1996008428A1 (en) | 1996-03-21 |
EP0776301A4 (en) | 1998-07-29 |
EP0776301A1 (en) | 1997-06-04 |
RU2141922C1 (ru) | 1999-11-27 |
DE69525752D1 (de) | 2002-04-11 |
KR970706187A (ko) | 1997-11-03 |
NZ295506A (en) | 1999-04-29 |
ES2172598T3 (es) | 2002-10-01 |
EP0776301B1 (en) | 2002-03-06 |
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