TW201934911A - 噴吐閥門 - Google Patents

噴吐閥門 Download PDF

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TW201934911A
TW201934911A TW107133551A TW107133551A TW201934911A TW 201934911 A TW201934911 A TW 201934911A TW 107133551 A TW107133551 A TW 107133551A TW 107133551 A TW107133551 A TW 107133551A TW 201934911 A TW201934911 A TW 201934911A
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valve
liquid
valve seat
contact
gpa
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TW107133551A
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TWI784055B (zh
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濱田裕一
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日商信越化學工業股份有限公司
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00Details relating to contact between valve members and seats
    • F16K25/005Particular materials for seats or closure elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus 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
    • B05C5/0204Apparatus 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 for applying liquid or other fluent material to the edges of essentially flat articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus 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
    • B05C5/0225Apparatus 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/36Valve members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/36Valve members
    • F16K1/38Valve members of conical shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/42Valve seats
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K21/00Fluid-delivery valves, e.g. self-closing valves
    • F16K21/04Self-closing valves, i.e. closing automatically after operation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Coating Apparatus (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

本發明提供一種噴吐量變動較少之噴吐閥門。
本發明之噴吐閥門,係藉由閥與閥座的接觸來封閉流體;噴吐閥門之特徵在於:閥座中之與閥相接之處,由拉伸彈性係數在2GPa以上之材料所構成。或是一種噴吐閥門,藉由閥與閥座的接觸來封閉流體;噴吐閥門之特徵在於:閥座中之與閥相接之處,由壓縮彈性係數在2GPa以上之材料所構成。

Description

噴吐閥門
本發明係關於一種用以噴吐液體之噴吐閥門。
以一定量供給水、油、樹脂等液體之分注器,使用於半導體製程或醫療領域等各種領域。在半導體製程中,於底部填充(underfill)製程中大多使用分注器,在以樹脂填充半導體元件的封裝體內部之用途中,也大多使用分注器。另外,在LED元件之製造過程中,在將混有螢光物質與樹脂的螢光液塗布在LED晶片之製程中,使用了分注器。這種分注器,係使用一種承受溶液供給並以定量分注於正確位置之噴吐閥門,來作為核心裝置(參照例如專利文獻1)。
[習知技術文獻]
[專利文獻]
專利文獻1:日本特開2015-182043號公報
[發明所欲解決之問題]
就算是能以高精度定量噴吐液體之定量噴吐閥門,以一定期間將閥隔絕後當下進行噴吐,在此情況下,通常傾向於噴吐出比所設定液體量更大量的液體。一般認為,這是因為在噴吐閥門隔絕液體之際,不鏽鋼製之閥為了防止液體洩漏,便以相對較強之壓力將閥抵緊於閥座,讓閥座中之與閥相接之處略有彈性變形而凹陷,此後當下的噴吐中,液體流路依其凹陷度,而比設定上變得更寬。亦即,在平常噴吐液體之狀態中,如圖2(a)所示,在閥座12與閥11之間,形成了既定寬度之流路;在隔絕狀態中如圖2(b)所示,維持在閥座12抵緊於閥11之狀態。而隔絕狀態持續一定期間後轉移至噴吐狀態後當下,如圖2(c)所示,閥座12中之與閥11相接之處12a會彈性變形,從該彈性變形到復原為止的期間,變成流路比既定寬度更寬之狀態,噴吐出比所求量更大量之液體。
設定成閥之上升量減少,讓液體流路變窄,來提高供給壓力,在此情況下,相對於液體流路之閘幅,閥座之變形量所占比例增加,所以液體量之變動有增加之傾向。另一方面,設定成降低供給壓力,讓閥之上升量增加,讓液體流路擴大,在此情況下,閥之動作量增加,氣體捲入液體流路之風險變大。從而,為了進行精密噴吐,必須在噴吐初期時進行準備噴吐作業,但這卻降低了操作性,浪費了噴吐材料。
本發明有鑒於上述問題所完成,目的在於提供一種噴吐量變動較少之噴吐閥門。
[解決問題之技術手段]
本案發明人努力研究之結果,發現令閥座的材質為不易彈性變形之材料,藉此可讓閥抵緊所造成的閥座變形減少,特別是可讓再次進行液體噴吐之際等噴吐初期時的噴吐量變動得到抑制。
亦即,以下之噴吐閥門。[1]、一種噴吐閥門,係藉由閥與閥座的接觸來封閉流體;噴吐閥門之特徵在於:閥座中之與閥相接之處,由拉伸彈性係數在2GPa以上之材料所構成。
[2]、一種噴吐閥門,係藉由閥與閥座的接觸來封閉流體;噴吐閥門之特徵在於:閥座中之與閥相接之處,由壓縮彈性係數在2GPa以上之材料所構成。
[3]、如[1]或[2]所載之噴吐閥門,其特徵在於:閥為針閥。
[4]、如[1]至[3]中任一項所載之噴吐閥門,其特徵在於:其為定量噴吐閥門。
[5]、如[1]至[4]中任一項所載之噴吐閥門,其特徵在於:構成閥座中之與閥相接之處的材料,為聚醚醚酮、聚醯亞胺、不鏽鋼之群組中所選出的1種材料。
[發明之功効]
根據本發明之噴吐閥門,可讓液體之噴吐量變動得到抑制,可以進行液體的精密噴吐。另外,以往要進行精密噴吐所需之噴吐初期時的準備噴吐作業,已不再需要,可提升操作性,可節省噴吐材料。
圖1係顯示本發明實施形態所屬噴吐閥門1的構造之示意性剖面圖。亦即,噴吐閥門1,於閥門本體10之內部具備閥11與閥座12,藉由閥11與閥座12的接觸使得供給口13與噴吐口14之間的流體流路封閉。本實施形態之噴吐閥門1,其特徵在於:閥座12中之與閥11相接之處12a,由拉伸彈性係數在2GPa以上之材料所構成。
另外,噴吐閥門1,係藉由閥11與閥座12的接觸來封閉流體之噴吐閥門,其特徵在於:閥座12中之與閥11相接之處12a,由拉伸彈性係數在2GPa以上之材料所構成。
閥11,宜為針閥。另外,噴吐閥門1,宜為定量噴吐閥門。
閥座12中之與閥11相接之處12a的材質,只要是拉伸彈性係數在2GPa以上之材料,則未有特別限定,但宜為聚醚醚酮(PEEK)、聚醯亞胺、不鏽鋼之群組中所選出的1種材料。
閥座12中之與閥11相接之處12a的拉伸彈性係數,以3GPa以上為宜,4GPa以上為較佳者,100GPa以上為更佳者。閥座12中之與閥11相接之處12a的拉伸彈性係數,因較高者較不易變形,故為較佳者,但為了不讓閥11損傷,宜為拉伸彈性係數在閥11與閥座12相接之處的拉伸彈性係數以下之材料。
閥座12,可由單一材料所構成,亦可將複數材料加以組合。例如,在閥座12中之與閥11相接之處12a以外,亦可使用拉伸彈性係數未達2GPa之材料。
再者,樹脂材料的拉伸彈性係數,界定於ASTM D651。另外,金屬材料的拉伸彈性係數,界定於JIS Z 2280:1993。這裡的拉伸彈性係數為室溫下的値。
閥座12中之與閥11相接之處12a的材質,只要是壓縮彈性係數在2GPa以上之材料,則未有特別限定,但宜為聚醚醚酮(PEEK)、聚醯亞胺、不鏽鋼之群組中所選出的1種材料。
閥座12中之與閥11相接之處12a的壓縮彈性係數,以3GPa以上為宜,4GPa以上為較佳者,100GPa以上為更佳者。閥座12中之與閥11相接之處12a的壓縮彈性係數,因較高者較不易變形,故較高者較佳,但為了不讓閥11損傷,宜為壓縮彈性係數在閥11中之與閥座12相接之處的壓縮彈性係數以下之材料。
閥座12,可由單一材料所構成,亦可將複數材料加以組合。例如,在閥座12中之與閥11相接之處12a以外,亦可使用壓縮彈性係數未達2GPa之材料。
再者,樹脂材料的壓縮彈性係數,界定於ASTM D695。這裡的壓縮彈性係數為室溫下的値。
閥座12中之與閥11相接之處12a,宜為由拉伸彈性係數在2GPa以上,且壓縮彈性係數在2GPa以上之材料所構成。
閥座12,宜形成為環狀,配置於噴吐口14與閥11之間。再者,閥11、閥座12、噴吐口14之中心,宜配置於同一直線上。[實施例]
以下,依據實施例及參考例來說明本發明,但本發明並不限定於實施例。
[實施例1]將與Iwashita Engineering, Inc之液體精密噴吐用閥AV502的閥(SUS304)相抵緊之聚丙烯(PP)製的環狀閥座,予以替換成以相同形狀成形之PEEK(Victrex plc製,拉伸彈性係數:3.7GPa,壓縮彈性係數:4.1GPa)製閥座。
將矽氧樹脂以供給壓力0.30MPa供給至AV502閥之液體投入孔。調整AV502上部之調整用微調手柄,設定缸筒之開度,使得10秒間之液體噴吐量為0.3g左右。
在閥關閉而液體阻絕1小時之狀態後,對AV502供給閥開閉用之氣體,讓液體噴吐出來。將10秒間之液體噴吐量,以1分鐘間隔測量7次,則液體噴吐量最大為0.32g,最小為0.27g,其變動量為0.05g。
[實施例2]將與Iwashita Engineering, Inc之液體精密噴吐用閥AV502的閥(SUS304)相抵緊之聚丙烯(PP)製的環狀閥座,予以替換成以相同形狀成形之聚醯亞胺(DuPont Vespel® ,拉伸彈性係數:3.2GPa,壓縮彈性係數:2.4GPa)製閥座。
將矽氧樹脂以供給壓力0.30MPa供給至AV502閥之液體投入孔。調整AV502上部之調整用微調手柄,設定缸筒之開度,使得10秒間之液體噴吐量為0.3g左右。
在閥關閉而液體阻絕1小時之狀態後,對AV502供給閥開閉用之氣體,讓液體噴吐出來。將10秒間之液體噴吐量,以1分鐘間隔測量7次,則液體噴吐量最大為0.33g,最小為0.27g,其變動量為0.06g。
[實施例3]將與Iwashita Engineering, Inc之液體精密噴吐用閥AV502的閥(SUS304)相抵緊之聚丙烯(PP)製的環狀閥座,予以替換成以相同形狀成形之不鏽鋼(SUS304,拉伸彈性係數:193GPa,壓縮彈性係數:170GPa)製閥座。
將矽氧樹脂以供給壓力0.30MPa供給至AV502閥之液體投入孔。調整AV502上部之調整用微調手柄,設定缸筒之開度,使得10秒間之液體噴吐量為0.3g左右。
在閥關閉而液體阻絕1小時之狀態後,對AV502供給閥開閉用之氣體,讓液體噴吐出來。將10秒間之液體噴吐量,以1分鐘間隔測量7次,則液體噴吐量最大為0.31g,最小為0.29g,其變動量為0.02g。
[比較例1]將與Iwashita Engineering, Inc之液體精密噴吐用閥AV502的閥(SUS304)相抵緊之聚丙烯(PP,拉伸彈性係數:1.5GPa,壓縮彈性係數:1.5GPa)製的環狀閥座,維持原狀來使用。將矽氧樹脂以供給壓力0.30MPa供給至AV502閥之液體投入孔。調整AV502上部之調整用微調手柄,設定缸筒之開度,使得10秒間之液體噴吐量為0.3g左右。
在閥關閉而液體阻絕1小時之狀態後,對AV502供給閥開閉用之氣體,讓液體噴吐出來。將10秒間之液體噴吐量,以1分鐘間隔測量7次,則液體噴吐量最大為0.57g,最小為0.26g,其變動量為0.31g。
[表1]
如表1所示,利用本發明所屬之實施例1~3,來與比較例對比,可抑制噴吐量之變動。
再者,本發明,並不限定於上述實施形態。上述實施形態僅為例示,只要是與本發明申請專利範圍所載之技術性思想具有實質上相同一構成,達到同樣的作用効果者,無論如何均包含在本發明之技術範圍內。
1‧‧‧噴吐閥門
10‧‧‧閥門本體
11‧‧‧閥
12‧‧‧閥座
12a‧‧‧相接之處
13‧‧‧供給口
14‧‧‧噴吐口
圖1係噴吐閥門之示意圖。
圖2(a)、(b)、(c)係示意圖,顯示在既有的噴吐閥門中,受閥所加壓之閥座變形讓流路擴大,使液體量增加之原理。

Claims (5)

  1. 一種噴吐閥門,係藉由閥與閥座的接觸來封閉流體; 該噴吐閥門之特徵在於:該閥座中之與該閥相接之處,係由拉伸彈性係數在2GPa以上之材料所構成。
  2. 一種噴吐閥門,係藉由閥與閥座的接觸來封閉流體; 該噴吐閥門之特徵在於:該閥座中之與該閥相接之處,係由壓縮彈性係數在2GPa以上之材料所構成。
  3. 如申請專利範圍第1或2項之噴吐閥門,其中,該閥為針閥。
  4. 如申請專利範圍第1或2項之噴吐閥門,其為定量噴吐閥門。
  5. 如申請專利範圍第1或2項之噴吐閥門,其中, 構成該閥座中之與該閥相接之處的材料,為聚醚醚酮、聚醯亞胺、不鏽鋼之群組中所選出的1種材料。
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