CN102369380B - 用于流动性介质的计量阀 - Google Patents

用于流动性介质的计量阀 Download PDF

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CN102369380B
CN102369380B CN201080014345.2A CN201080014345A CN102369380B CN 102369380 B CN102369380 B CN 102369380B CN 201080014345 A CN201080014345 A CN 201080014345A CN 102369380 B CN102369380 B CN 102369380B
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magnet
valve according
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valve
gap part
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CN102369380A (zh
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H·诺伊德克
S·罗斯
J·施纳肯贝格
M-D·施特根
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Falk & Co ltd
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    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1034—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves specially designed for conducting intermittent application of small quantities, e.g. drops, of coating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
    • B05C5/0279—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve independently, e.g. individually, flow controlled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3053—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a solenoid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

本发明涉及一种用于处理胶料或其它介质的阀，该阀采用磁体特别是永磁体来操纵一闭锁机构(16)。两个彼此对置的单个磁体(22，23)至少在与介质或胶料相接触的区域内设有保护层或盖件(34)，其优选设计成罩体并且用钛、其它金属或塑料制成，借以保护磁体(22，23)不受介质的影响。

Description

用于流动性介质的计量阀
技术领域
本发明涉及一种用于流动性介质的计量阀，特别是胶料喷嘴或胶料阀，包括一个调节或闭锁机构，该调节或闭锁机构能够通过至少一个磁体特别是永磁体进行调节。
背景技术
这种阀已在WO2008/155117中就一种优选的设计形式作了绘示和说明。在这种已知的阀中，对胶料进行处理，也就是在包装工业中用于将(小量的)胶料部分传递到(香烟)包装件的折叠片上。按这种已知的阀，一个闭锁机构，亦即阀挺杆连同在该阀挺杆端部上的一个球形闭锁机构，通过永磁体加载，也就是在闭锁头贴靠在阀座上的情况下运动到关闭位置。按这一背景技术，在阀体中配置了一个固定磁体和与之相对置的一个磁体，后者与阀挺杆相连。这两个操纵磁体以相同的极特别是以北极彼此相对。于是便产生一种推斥力磁场，或者传递到阀挺杆上。一个节拍循环式操纵的电磁铁推动阀挺杆克服永磁体的作用而进入闭锁机构的打开位置。
发明内容
本发明的目的在于，提高或者说延长计量阀特别是胶料阀或胶料喷嘴的工作可靠性和使用寿命。
为此，本发明提供一种用于流动性介质的计量阀，包括一个调节或闭锁机构，该调节或闭锁机构能够通过至少一个磁体进行调节，为此设置两个磁体，其中一个固定的磁体和与所述调节或闭锁机构相连的另一磁体以相同的极彼此相对，通过一个节拍循环式操纵的电磁铁能够推动所述调节或闭锁机构克服磁体的作用进入打开位置；所述磁体至少局部地设有对介质的作用有抵抗能力的、不影响磁力的覆层和/或盖件，其特征在于：所述两个磁体分别设置在一磁体支座的空隙部中，并且为设置在所述空隙部中的所述磁体配设所述覆层和/或盖件，其中，各磁体通过胶粘剂被固定在空隙部中；以及，设置有伸出于磁体且伸出于盖件的环绕布置的桥接件。
为了实现上述目的，本发明提出的阀或本发明提出的喷嘴具有以下特征：这个磁体或者这些磁体或永磁体至少局部地设有对介质的作用有抵抗能力的、不影响磁力的覆层和/或盖件。
本发明认识到：包装工业中对侵蚀性介质特别是(冷)胶料的处理会导致磁体的意外变化，如果该磁体由于阀的结构和工作方式之故而与介质相接触的话。依本发明，至少是磁体的这些接触区域通过具有前述特性的盖件或覆层加以保护。
该保护性盖件依最简单的情况是设置在磁体的端面或者说前面的区域内。有利的是，盖件构造为套装到磁体上的罩体或罩状覆层，分别还在磁体的侧面区域中延伸一段。
一些不同的材料适合作为保护盖件，有塑料如聚酯，但也有金属。特别合适的是钛，它具有意想不到的效果。这种材料对胶料和其它能流动的介质是有抵抗能力的，具有弱磁性，可增强磁场的力线，从而增强磁体的复位力。
该覆层或盖件是借助胶粘剂(单组份和多组份胶粘剂)固定在磁体上的。此外，由磁体和覆层或盖件/罩体所构成的单元可以利用固定材料固定在用于磁体的一个支座的空隙部中。
附图说明
下面将参照附图中所示的实施例对本发明的其它特征和特点作说明。附图表示：
图1一种阀特别是胶料阀的垂直剖视图；
图2图1所示的阀的一个局部II的放大图；
图3另一个实施例的相当于图2的视图；
图4第三个实施例的与图2、图3类似的视图。
具体实施方式
图1表示本发明的一个优选用途的例子，即一种胶料喷嘴或一种胶料阀。利用此阀产生流动性介质胶料的一些小份，并将之输出到载体上。该胶料阀特别用于将胶料小份传递到包装件(尤其是在生产香烟包装件时)的折叠片上。
该阀包括一个具有阀室11的阀体10，待处理的介质，即特别是胶料，被输送至该阀室，主要是经由一条通入此阀室11中的(水平)胶料通道12实现输送。
介质即胶料经由阀座14区域内的一个阀孔13从阀中排出。阀座14配有一个向下收敛的、锥形的配合面15，该配合面导向居中的阀孔13。为该阀孔配置有一个闭锁机构16，该闭锁机构可以在阀体10内依纵向或垂直方向在关闭位置(图1)和打开位置之间运动。该闭锁机构包括一个活塞件17、一个中间件18和一个安置在此中间件上的闭锁件19。该闭锁件在外形上是与阀座14或配合面15相适的，现在的情况是作为球体设计。操纵机构16即活塞件17的横向尺寸即直径明显地小于阀室11的相应尺寸。阀室11中的介质因而包围着活塞件17并一直达到阀室11的终端。
为了操纵闭锁机构18，即为了实现到关闭位置和打开位置的运动，而配置了彼此独立的操纵机构。第一操纵机构用于调节闭锁机构16进入打开位置，按图1所示是处于向上的运动中。这里涉及到电磁铁20，其绕组处在一个横截面呈U形的保持件21中。电磁铁20被设置在相对于阀体10的居中处，并以一个(下部)区域包围着挺杆状的闭锁机构16。通过电磁铁20的脉冲式加载，闭锁机构16以及从而闭锁件19便被带动到打开位置中。
闭锁机构16的闭锁运动同样是以磁性作用方式实现的，具体而言，是通过两个彼此协调配合的单个磁体22、23予以实现的。这两个单个磁体最好是作为永磁体设计。第一单个磁体22是固定地定位于阀体10中，也就是安置在一个对置于阀座14而与阀室11邻界的支承件24上。该支承件最好设计成圆柱状，并固定地被支承在一个部分地被电磁铁20所包围的区域中，不过为了改变阀室11的边界则是可调地加以支承的。为此目的，支承件24与一个可以从外部操作的调整螺钉25相连，利用该调整螺钉可以调整支承件24的相对位置而作为用于闭锁机构16的上止挡。该闭锁机构在打开位置即在图1中的上终端位置中，得以贴靠在支承件24的一个自由的端面26上。
第一(上部的)单个磁体22被安置在一个相对于支承件24居中的空隙部27中，或者安置在其内或其上。单个磁体22的固定可以借助机械连接机构，但优选是通过一种粘附介质特别是胶粘剂28予以实现。空隙部27的尺寸略大于单个磁体22，所以胶粘剂28完全包围单个磁体22，但至少是在侧面29的区域内包围着它，并与空隙部27的环绕的内壁相连。
第二单个磁体23对置地安置在闭锁机构16处，特别是在活塞件17的一个端面或支撑面30的区域内。该活塞件也具有一个空隙部31，单个磁体23被固定在该空隙部中，最好通过胶粘剂32加以固定。在横截面中优选呈圆柱状的单个磁体22、23是以相同的极、在这里是以北极彼此相对。
这些磁体，这里是单个磁体22，23，对于机械损害和/或化学损害是有防护的。特别是，单个磁体22，23是针对侵蚀性介质如包装工业中用的胶料是有防护的。这种保护至少在相向的磁体面33的区域内通过盖件和/或覆层予以实现。
按图2所示的实施例，磁体面33和单个磁体22、23的侧面29的一个邻接区域都配置有罩状的盖件34。特别有利的是一种用金属制成的盖件34，尤其是用钛。这种材料可以在壁厚(如大约0.05mm)很薄的情况下进行加工。意想不到的是，该材料具有弱磁性而增强了单个磁体22、23的力线。盖件34或钛罩优选借助胶粘剂固定在单个磁体22或23上，在此是通过胶粘剂28、32来固定磁体22、23。这种布置是如此设计的，即，使得在支承件24的区域内盖件34与支承件24的端面26相齐平。
相对置地，在单个磁体23的区域内，盖件34与支撑面30也是齐平的。但在此区域内配置了一些单独的、环绕地布置的桥接件35，这些桥接件经过支撑面30或经过单个磁体23和经过盖件34伸出，并在操纵机构16的上终端位置中得以贴靠在端面26上，借以避免在上终端位置中单个磁体22、23或盖件34的直接接触。为了使盖件34的轮廓与圆边缘36匹配，单个磁体22、23在磁体面33的区域内具有斜面或倒角部37。
图3所示的实施例与前面所述的实施例的区别在于针对单个磁体22、23的保护措施。这些单个磁体在磁体面33的区域内配有一个盖板38，该盖板在空隙部27、31的整个横截面上延伸。盖板38最好用胶粘剂28、32加以固定或者说与磁体面33相连。盖板38优选用钛制成，但也有其它金属或塑料是适用的。盖板38相对于端面26或桥接件35而言是后撤的，借以避免发生相互接触的现象。盖板38是适配地嵌置在空隙部或凹部27或31中，从而使磁体的区域得以密封。
代替用于磁体22、23的这种分开的护盖机构，所述磁体也可以在磁体制造时或者置入胶料阀内部所需位置中之后，配置一保护层39。该保护层也具有保护磁体22、23的特性，但也不会影响磁体的作用。保护层39最好由这样一种物质构成，这种物质在施加时是可塑的，而此后便永久硬化。例如，该保护层39可以用塑料(聚脂)构成。
按图4所示的实施例，保护层39在空隙部27或31的整个口部上延伸。据此，保护层39紧密地连接到包围着空隙部27、31的面上。另外作为选择，保护层39也可以附加地在磁体的侧面29的区域内延伸或者完全包围该侧面。
在安装单个磁体22，23时，最好执行下述方法：给磁体22、23的有关的面配备起连接作用的涂层，即胶粘剂28、32，然后再置入到有关的空隙部27、31中。随后安置盖件34、盖板38或保护层39。在采用盖件34或保护层39时，也可在磁体22、23置入到相应的空隙部27、31中之前，就将其安置在磁体上。
在空隙部27、31中，即在底面的区域内，成形有一凹部40，在置入磁体22、23时，多余的胶粘剂28、32量可以进入该凹部中。
附图标记一览表
10         阀体                       26         端面
11         阀室                       27         空隙部
12         胶料通道                   28         胶粘剂
13         阀孔                       29         侧面
14         阀座                       30         支撑面
15         配合面                     31         空隙部
16         闭锁机构                   32         胶粘剂
17         活塞件                     33         磁体面
18         中间件                     34         盖件
19         闭锁件                     35         桥接件
20         电磁铁                     36         圆边缘
21         保持件                     37         倒角部
22         单个磁体                   38         盖板
23         单个磁体                   39         保护层
24         支承件                     40         凹部
25         调整螺钉

Claims (11)

1.用于流动性介质的计量阀，包括一个调节或闭锁机构(16)，该调节或闭锁机构能够通过至少一个磁体(22，23)进行调节，为此设置两个磁体，其中一个固定的磁体和与所述调节或闭锁机构(16)相连的另一磁体以相同的极彼此相对，通过一个节拍循环式操纵的电磁铁能够推动所述调节或闭锁机构(16)克服磁体的作用进入打开位置；所述磁体(22，23)至少局部地设有对介质的作用有抵抗能力的、不影响磁力的覆层和/或盖件，其特征在于：所述两个磁体(22，23)分别设置在一磁体支座(17，24)的空隙部(27，31)中，并且为设置在所述空隙部(27，31)中的所述磁体(22，23)配设所述覆层和/或盖件，其中，各磁体(22，23)通过胶粘剂(28，32)被固定在空隙部(27，31)中；以及，设置有伸出于磁体(22，23)且伸出于盖件(34)的环绕布置的桥接件(35)。
2.按权利要求1所述的阀，其特征在于：横截面呈圆形或角形的磁体(22，23)至少在自由的、朝向介质的端面的区域内设有所述盖件或所述覆层。
3.按权利要求2所述的阀，其特征在于：所述盖件构造为用金属制成的盖板(38)。
4.按权利要求3所述的阀，其特征在于：所述盖件构造为用钛制成的盖板(38)。
5.按权利要求2所述的阀，其特征在于：所述盖件(34)是作为罩体设计的，它覆盖住磁体(22，23)的自由的端面或磁体面(33)并且至少覆盖住侧面(29)的邻接区域。
6.按权利要求5所述的阀，其特征在于：所述盖件(34)用钛制成并且具有大约0.05mm的层厚或壁厚。
7.按权利要求2所述的阀，其特征在于：所述盖件借助胶粘剂固定在磁体(22，23)上。
8.按权利要求1所述的阀，其特征在于：在磁体(22，23)上敷设有一保护层(39)作为所述覆层。
9.按权利要求8所述的阀，其特征在于：所述保护层(39)是由一种最初能流动的或可塑的并且在磁体(22，23)上硬化和粘附的材料构成。
10.按权利要求2所述的阀，其特征在于：磁体(22，23)是在设有适配地固定于空隙部(27，31)中的盖板(38)的情况下被设置在所述磁体支座(17，24)的该空隙部(27，31)之中。
11.按权利要求1所述的阀，其特征在于：磁体(22，23)在磁体支座(17，24)的空隙部(27，31)中被支撑于一底部上，该底部具有凹部(40)，用于容纳多余的胶粘剂。
CN201080014345.2A 2009-04-01 2010-03-16 用于流动性介质的计量阀 Expired - Fee Related CN102369380B (zh)

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