CN103925454A - 一种高密封注塑模具用止水栓 - Google Patents

一种高密封注塑模具用止水栓 Download PDF

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Publication number
CN103925454A
CN103925454A CN201410162969.9A CN201410162969A CN103925454A CN 103925454 A CN103925454 A CN 103925454A CN 201410162969 A CN201410162969 A CN 201410162969A CN 103925454 A CN103925454 A CN 103925454A
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Prior art keywords
sealing injection
water stop
injection mould
rubber ring
high sealing
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CN201410162969.9A
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English (en)
Inventor
王枫
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Kunshan Dajiu Electronics Co Ltd
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Kunshan Dajiu Electronics Co Ltd
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Priority to CN201410162969.9A priority Critical patent/CN103925454A/zh
Publication of CN103925454A publication Critical patent/CN103925454A/zh
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
    • F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
    • F16L55/132—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
    • F16L55/134—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing by means of an inflatable packing
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2608—Mould seals
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C2045/1718—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles sealing or closing the fluid injection opening

Abstract

本发明公开了一种高密封注塑模具用止水栓，包括铜材质的套管，所述套管外均匀设有数个橡胶圈，所述套管内设有铝材质的紧固栓，所述紧固栓由数个圆台连接而成，所述每个圆台下底面外缘设有一圈凸起，所述每圈凸起位于每个橡胶圈内，所述紧固栓内部设有一膨胀螺丝；本发明的优点有：在高温下膨胀效果显著，能够实现堵水、堵气的结合，且堵水、堵气效率大大提高；能够耐高温，结构简单，节约成本，使用方便，延长了使用寿命。

Description

一种高密封注塑模具用止水栓
技术领域
本发明涉及注塑模具零部件领域，特别是一种高密封注塑模具用止水栓。 
背景技术
止水栓是用于塑胶模或任何水道冷却或加温系统之中，依照所需的流向配合起到有关于填塞的作用的金属零件。止水栓使用范围：塑胶模具、水道流道冷却系统、流道水道加温导热系统。 
塑胶件注塑过程中，一般需要设计许多冷却或加热水路，而传统的注塑模具用止水栓是靠橡胶的膨胀进行密封的，水温较高时，容易出现漏水现象，封堵效果有限，通常不能实现堵水和堵气结合，且不耐高温，使得大范围的使用受到了限制，并减小了使用寿命，大大降低了使用效率。 
发明内容
为解决现有技术的不足，本发明的目的在于提供一种高密封注塑模具用止水栓，能够极大的提高封堵效率，实现堵水和堵气结合。 
为了实现上述目标，本发明采用如下的技术方案： 
一种高密封注塑模具用止水栓，其特征在于，包括铜材质的套管，所述套管外均匀设有数个橡胶圈，所述套管内设有铝材质的紧固栓，所述紧固栓由数个圆台连接而成，所述每个圆台下底面外缘设有一圈凸起，所述每圈凸起位于每个橡胶圈内，所述紧固栓内部设有一膨胀螺丝。 
一种高密封注塑模具用止水栓，其特征在于，所述套管的材质为黄铜。 
一种高密封注塑模具用止水栓，其特征在于，所述橡胶圈为耐高温橡胶圈。 
一种高密封注塑模具用止水栓，其特征在于，所述橡胶圈的个数为4-8个，所述对应的圆台个数为4-8个。 
一种高密封注塑模具用止水栓，其特征在于，所述橡胶圈的厚度为0.5-1.5mm。 
一种高密封注塑模具用止水栓，其特征在于，所述圆台下底面外缘凸起的外侧面距离橡胶圈顶端的厚度为0.2-1.2mm。 
一种高密封注塑模具用止水栓，其特征在于，所述橡胶圈外侧面还设有一圈铜圈，所述铜圈的厚度为0.3-0.8mm。 
本发明的原理为：1.本发明的止水栓利用不同材质的热膨胀系数，将设在内部的紧固 栓运用热膨胀系数大的铝(热膨胀系＝23*10-6/℃)，外部的套管运用热膨胀系数较大的铜(热膨胀系＝17.7*10-6/℃)，在铜套管上设有耐高温橡胶圈，在升温时，铝质紧固栓迅速膨胀，进而带动铜质套管及橡胶圈的膨胀，进一步加大了套管及橡胶圈的膨胀力度；2.本发明的止水栓利用铜部件受热膨胀原理，使铜套管变形，从而与运水孔形成过盈配合，不仅能够堵水，更能够堵气，附于外层的密封圈厚度大大减小，膨胀时配合铜套管膨胀，实现了橡胶封堵和过盈密封的结合，效率大大提高。 
本发明的有益之处在于：在高温下膨胀效果显著，能够实现堵水、堵气的结合，且堵水、堵气效率大大提高；能够耐高温，结构简单，节约成本，使用方便，延长了使用寿命。 
附图说明
图1是本发明的高密封注塑模具用止水栓示意图； 
图2是本发明的另一种高密封注塑模具用止水栓示意图。 
图中附图标记的含义： 
1.套管，2.橡胶圈，3.紧固栓，4.圆台，5.凸起，6.膨胀螺丝，7.铜圈。 
具体实施方式
以下结合附图和具体实施例对本发明作具体的介绍。 
结合图1，本发明的高密封注塑模具用止水栓，包括黄铜材质的套管1，所述套管1外均匀设有6个耐高温的橡胶圈2，所述橡胶圈2的厚度为1mm；所述套管1内设有铝材质的紧固栓3，所述紧固栓3由6个圆台4连接而成，所述每个圆台4下底面外缘设有一圈凸起5，所述凸起5的外侧面距离橡胶圈2顶端的厚度为1mm；所述每圈凸起5位于每个橡胶圈2内，所述紧固栓3内部设有一膨胀螺丝6。 
结合图2，本发明的高密封注塑模具用止水栓，除上述结构外，其不同之处在于，所述橡胶圈2外侧面还设有一圈铜圈7，所述铜圈7的厚度为0.5mm；所述橡胶圈2的厚度为0.5mm；所述凸起5的外侧面距离橡胶圈2顶端的厚度为1.2mm；所述套管1的材质为红铜。 
本发明的高密封注塑模具用止水栓，除上述结构外，其不同之处在于，所述铜圈7的厚度为0.3mm；所述橡胶圈2的厚度为1.5mm；所述凸起5的外侧面距离橡胶圈2顶端的厚度为0.5mm。 
本发明的高密封注塑模具用止水栓，除上述结构外，其不同之处在于，所述铜圈7的厚度为0.8mm；所述橡胶圈2的厚度为0.9mm；所述凸起5的外侧面距离橡胶圈2顶端的厚度为0.8mm。 
本发明的高密封注塑模具用止水栓利用了不同材质不同热膨胀系数，结构简单，生 产成本低，且使用效果显著，本发明的高密封注塑模具用止水栓通过实验证明，可承受60kg/cm2的水压，并可用于封堵150～200℃的蒸汽，现已投入生产，并进行了试用，适合广泛的使用。 
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解，上述实施例不以任何形式限制本发明，凡采用等同替换或等效变换的方式所获得的技术方案，均落在本发明的保护范围内。 

Claims (7)

1.一种高密封注塑模具用止水栓，其特征在于，包括铜材质的套管，所述套管外均匀设有数个橡胶圈，所述套管内设有铝材质的紧固栓，所述紧固栓由数个圆台连接而成，所述每个圆台下底面外缘设有一圈凸起，所述每圈凸起位于每个橡胶圈内，所述紧固栓内部设有一膨胀螺丝。
2.根据权利要求1所述的高密封注塑模具用止水栓，其特征在于，所述套管的材质为黄铜。
3.根据权利要求1所述的高密封注塑模具用止水栓，其特征在于，所述橡胶圈为耐高温橡胶圈。
4.根据权利要求1所述的高密封注塑模具用止水栓，其特征在于，所述橡胶圈的个数为4-8个，所述对应的圆台个数为4-8个。
5.根据权利要求4所述的高密封注塑模具用止水栓，其特征在于，所述橡胶圈的厚度为0.5-1.5mm。
6.根据权利要求1所述的高密封注塑模具用止水栓，其特征在于，所述圆台下底面外缘凸起的外侧面距离橡胶圈顶端的厚度为0.2-1.2mm。
7.根据权利要求1所述的高密封注塑模具用止水栓，其特征在于，所述橡胶圈外侧面还设有一圈铜圈，所述铜圈的厚度为0.3-0.8mm。
CN201410162969.9A 2014-04-22 2014-04-22 一种高密封注塑模具用止水栓 Pending CN103925454A (zh)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2676525A1 (fr) * 1991-05-13 1992-11-20 Westinghouse Electric Corp Bouchon pour obturation de tube et procede pour obturer un tube.
DE4324362A1 (de) * 1993-07-21 1995-01-26 Hermann Klein Schnellverschluß für zylindrische glatte Rohrenden und Bohrungen
CN1216349A (zh) * 1997-11-01 1999-05-12 程远惠 一种管线管孔封堵方法及专用封堵件
US20100147408A1 (en) * 2008-12-12 2010-06-17 Tyson Vernon L Sewer pipe flow through bypass device
CN102221093A (zh) * 2010-04-19 2011-10-19 鸿富锦精密工业（深圳）有限公司 止水栓
CN102806645A (zh) * 2012-09-13 2012-12-05 晟扬精密模具（昆山）有限公司 高温成型模具
CN203363524U (zh) * 2013-06-24 2013-12-25 Tcl王牌电器(惠州)有限公司 止水装置、止水系统及模具
CN103470906A (zh) * 2013-09-17 2013-12-25 苏州益群模具有限公司 止水栓
CN203847909U (zh) * 2014-04-22 2014-09-24 昆山市大久电子有限公司 一种高密封注塑模具用止水栓

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2676525A1 (fr) * 1991-05-13 1992-11-20 Westinghouse Electric Corp Bouchon pour obturation de tube et procede pour obturer un tube.
DE4324362A1 (de) * 1993-07-21 1995-01-26 Hermann Klein Schnellverschluß für zylindrische glatte Rohrenden und Bohrungen
CN1216349A (zh) * 1997-11-01 1999-05-12 程远惠 一种管线管孔封堵方法及专用封堵件
US20100147408A1 (en) * 2008-12-12 2010-06-17 Tyson Vernon L Sewer pipe flow through bypass device
CN102221093A (zh) * 2010-04-19 2011-10-19 鸿富锦精密工业（深圳）有限公司 止水栓
CN102806645A (zh) * 2012-09-13 2012-12-05 晟扬精密模具（昆山）有限公司 高温成型模具
CN203363524U (zh) * 2013-06-24 2013-12-25 Tcl王牌电器(惠州)有限公司 止水装置、止水系统及模具
CN103470906A (zh) * 2013-09-17 2013-12-25 苏州益群模具有限公司 止水栓
CN203847909U (zh) * 2014-04-22 2014-09-24 昆山市大久电子有限公司 一种高密封注塑模具用止水栓

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