1258188 玖、發明說明： 【發明所屬之技術領域2 發明所屬之技術領域 本發明係有關於一種以預定流量對被加工物滴入液劑 5 之分配裝置。 【先前技術3 習知技術 第5圖顯示習知之分配裝置。於桶1内儲存有如液晶等 之液劑，且該液劑透過管2供給至注射器3。又，於管2設置 10有隔膜閥4以作為供給閥，且若開啟該隔膜閥4，則液劑會 供給至注射器3。於注射器3内可儲存約1CC之少量液劑。 注射器3係透過具有末端閥之機能之塞閥5與喷嘴6連 接。又，若開啟塞閥5，則藉由柱塞7之推壓操作，注射器3 内之液劑可自噴嘴6滴下。 15 塞閥5係由利用旋轉引動器8驅動之旋轉閥所構成。 於依此構成之分配裝置中，藉由在關閉塞閥5之狀態下 開啟隔膜閥4且使柱塞7上昇，使液劑可自則供給裏注射器 3，且注射器3内儲存少量液劑。 接著，關閉隔膜閥4且開啟塞閥5，於該狀態下可利用 2〇柱基7來推壓注射器3内之液劑。如此一來，液劑自喷嘴6滴 下。 於專利文獻1(曰本專利公開公報特開平5一36741號公 報)及專利文獻2(特開平6 - 126227號公報）中揭禾有類似之 分配裝置。 1258188 於第5圖所示之分配裝置中，作為供給閥使用之隔膜閥 4於構造上容易產生氣泡。又，作為末端閥使用之塞閥5在 閥之開關操作時亦容易因旋轉閥所造成之空洞現象而產生 氣泡。 5 又，若注射器3内之液劑含有氣泡，則於利用柱塞7之 推壓時氣泡收縮，因此產生無法安定滴下液劑之問題。 又，由旋轉閥所構成之塞閥5中，於其開關操作時會有 因閥之滑動而產生之微粒的問題。 又，由於隔膜閥4及塞閥5之結構複雜，因此洗淨時之 10 分解及組裝需耗費時間。再者，隔膜閥4及塞閥5皆為容易 引起氣泡之間隙多之構造，故，於洗淨後再使用時，必須 確實地抽出氣泡，因此其準備作業需耗費時間。 【發明内容】 發明之要旨 15 本發明之目的係提供一種結構簡單且可抑制氣泡之產 生之分配裝置。 本發明之一實施態樣之分配裝置包含有：桶，係用以 儲存液劑者；供給閥，係用以控制前述液劑自前述桶供給 至注射器者；末端閥，係用以控制前述液劑自前述注射器 20 供給至喷嘴者；及柱塞，係於前述末端閥開啟時可朝前述 喷嘴推壓前述注射器内之液劑者，其特徵在於：前述供給 閥及末端閥係由利用夾持具有可撓性之管或解除夾持來開 關前述液劑之流路之夾緊閥所構成。 又，本發明之其他實施態樣之分配裝置中，前述管係 1258188 由連接前述桶與前述注射器間之第一管及連接前述注射器 與前述喷嘴之第二管所構成，且前述夾緊閥係由夾持前述 第一管之第一夾緊閥與夾持第二管之第二夾緊閥所構成。 又，本發明之其他實施態樣之分配裝置中，前述第一 5 夾緊閥係構成為可於前述注射器附近，即，於距離前述注 射器10mm以内之位置夾持前述第一管。 又，本發明之其他實施態樣之分配裝置係構成為並列 設置前述第一及第二管且以共通之引動器部驅動前述第一 及第二夾緊閥。 10 圖式簡單說明 第1圖係顯示第一實施形態之構造圖。 第2圖係顯示第一實施形態之夾緊閥之說明圖。 第3圖係顯示第二實施形態之構造圖。 第4圖係顯示第二實施形態之夾緊閥之說明圖。 15 第5圖係顯示習知例之構造圖。 C實施方式3 發明之實施形態 (第一實施形態） 以下依照第1及2圖，說明將本發明具體化之第一實施 20 形態。與前述習知例相同之構成部分係附上相同之編號來 說明。 於桶1内儲存有如液晶等之液劑，且該液劑透過第一管 11供給至注射器3。前述第一管11係由具有可撓性且對液劑 具有耐蝕性之合成橡膠來形成，例如藉由矽橡膠等來形 1258188 成。又’其直控係外徑3mm，内徑1 mm。 前述第一管11之兩端部係分別透過接頭部12a、1沈而 與前述桶1及注射器3連接。 於前述接頭部12b之附近配置有作為供給閥之第一夾 5緊閥13a。該夾緊閥Ua之臂15自引動器部14突出，且3片夾 持片16a〜16c自該臂15平行地突出。 於前述夾持片16a〜16c中，兩側之夾持片16a、16c係 相對於臂15而固定，且中央之夾持片16b可朝夾持片16&或 夹持片16c移動。又，引動器部14係藉由控制部（未圖示）控 1〇制其動作，且夾持片16b係藉由該引動器部14驅動。 如第2圖所示，前述第一管丨丨係插通於夾持片丨如、i6b 間。又，若夾持片16b朝夾持片16a移動，則第一管u夾持 於兩夾持片16a、16b間且阻斷液劑之流路。故，於第一管 11未夾持於兩夾持片16a、16b間時，若柱塞7上昇，則液劑 15自前述桶1供給至注射器3。 又，兩爽持片16a、16b係配置為於接頭部12祕1〇麵 以内之位置，即，於注射器3附近夾持第一管^。 前述注射器3係透過與前述第一管丨丨相同之構造之第 二管Π與喷嘴6連接。魏第二管17之兩端部分別透過接頭 20 部18a、18b而與注射器3及喷嘴6連接。 前述接頭部18a、18b間設置有作為末端間之第二爽緊 閥说。第二夾緊闕13b與前述第一爽緊閱以為相同之構 造。即，第二夾緊闊別係藉由控制部來控制，且構成為可 於接頭部18a起10mm以内之位置夾持第二管。 1258188 於前述注射器3中插入柱塞7,且藉由該柱塞7之推壓操 作，儲存於注射器3内之液劑自喷嘴6滴下。 ，《述構成之分配裝置令，若藉由第—夾緊閥…開啟 5 10 15 第一官11，且第二夾緊閥13b中第二管17關閉而柱塞7上 昇，則注射器3内可儲存少量之液劑。 接著，若於第-夾緊閥13a_第—管u且於第二夹緊 閥13b開啟第二管17,並於讀壯能τ , 於w亥狀恶下以柱塞7推壓注射器3内 之液劑，則液劑會以一定速度自噴嘴6滴下。 依前述構成之分配裝置可得到如下所示之作用效果。 ⑴以供給閥及末端閥來動作之第一及第二夾緊閥 .別可藉由僅夾持第—及第二管u、i7之簡單之構造 來阻斷液劑之流路，因此可防μ餘 此了防止稭由第一及第二夹緊閥 13a、13b之流路開關操作時產生氣泡。 <⑺由於供給閥及末端閥為簡單之構造，因此可縮短洗 淨時間及洗淨時之分解或組裝時間。 (3)由於供給閥及末端閥為簡單之構造，因此可減少容 易引起⑼之_，故可減少洗淨後至再開啟使用時之準 又’即使”揮發性高且料產生氣泡之液劑， 亦可女定地滴下液劑。 :夾緊間13&係構成為於接頭部12b起10mm之位 置夾持弟一管11。Μ丄" ^ "匕種構造，於利用柱塞7之液劑之推 壓刼作時，可盡蕃祕1 ^ 歷，且可制因推壓力所造成之第一管11之膨 脹且了抑制精由第〜營 用柱塞7之推壓摔作〇 力之吸收。故，可使利 栎作之夜劑滴下量安定化。 20 12581881258188 发明Invention Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a dispensing device for dropping a liquid material 5 into a workpiece at a predetermined flow rate. [Prior Art 3 Conventional Technology FIG. 5 shows a conventional dispensing device. A liquid such as liquid crystal is stored in the tub 1, and the liquid is supplied to the syringe 3 through the tube 2. Further, the tube 2 is provided with a diaphragm valve 4 as a supply valve, and when the diaphragm valve 4 is opened, the liquid agent is supplied to the syringe 3. A small amount of liquid solution of about 1 cc can be stored in the syringe 3. The syringe 3 is connected to the nozzle 6 through a plug valve 5 having a function of an end valve. Further, when the plug valve 5 is opened, the liquid in the syringe 3 can be dripped from the nozzle 6 by the pressing operation of the plunger 7. The plug valve 5 is constituted by a rotary valve driven by a rotary actuator 8. In the dispensing device constructed as described above, the diaphragm valve 4 is opened and the plunger 7 is raised while the plug valve 5 is closed, so that the liquid can be supplied to the syringe 3 from the inside, and a small amount of the liquid is stored in the syringe 3. Next, the diaphragm valve 4 is closed and the plug valve 5 is opened. In this state, the column material 7 can be used to push the liquid in the syringe 3. As a result, the liquid agent drops from the nozzle 6. A similar dispensing device is disclosed in the patent document 1 (Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. 1258188 In the dispensing device shown in Fig. 5, the diaphragm valve 4 used as the supply valve is structurally susceptible to generation of air bubbles. Further, the plug valve 5 used as the end valve is also likely to generate air bubbles due to a cavity caused by the rotary valve during the switching operation of the valve. Further, when the liquid in the syringe 3 contains air bubbles, the air bubbles contract when the plunger 7 is pressed, so that there is a problem that the liquid can not be dripped stably. Further, in the plug valve 5 composed of a rotary valve, there is a problem of particles generated by the sliding of the valve during the switching operation. Further, since the structure of the diaphragm valve 4 and the plug valve 5 is complicated, it takes time to disassemble and assemble the 10 at the time of washing. Further, since both the diaphragm valve 4 and the plug valve 5 have a structure in which a large gap of the air bubbles is likely to occur, it is necessary to surely extract the air bubbles when used after washing, so that the preparation work takes time. SUMMARY OF THE INVENTION The object of the present invention is to provide a dispensing device which is simple in structure and can suppress the generation of bubbles. The dispensing device according to an embodiment of the present invention comprises: a barrel for storing a liquid agent; a supply valve for controlling the supply of the liquid agent from the barrel to the injector; and an end valve for controlling the liquid The agent is supplied from the syringe 20 to the nozzle; and the plunger is adapted to press the liquid in the syringe toward the nozzle when the end valve is opened, wherein the supply valve and the end valve are clamped by A clamping valve having a flexible tube or a flow path for releasing the clamping to open and close the liquid agent. Moreover, in another embodiment of the present invention, the tube system 1258188 is composed of a first tube connecting the barrel and the syringe, and a second tube connecting the syringe and the nozzle, and the clamping valve system It is composed of a first pinch valve that clamps the first pipe and a second pinch valve that clamps the second pipe. Further, in the distribution device according to another aspect of the present invention, the first 5 pinch valve is configured to be slidable in the vicinity of the syringe, that is, at a position within 10 mm from the injector. Further, in the distribution device according to another embodiment of the present invention, the first and second tubes are arranged in parallel, and the first and second pinch valves are driven by a common actuator portion. 10 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural view showing a first embodiment. Fig. 2 is an explanatory view showing a pinch valve of the first embodiment. Fig. 3 is a structural view showing the second embodiment. Fig. 4 is an explanatory view showing a pinch valve of the second embodiment. 15 Fig. 5 is a structural diagram showing a conventional example. C EMBODIMENT 3 EMBODIMENT OF THE INVENTION (First Embodiment) Hereinafter, a first embodiment of the present invention will be described with reference to Figs. 1 and 2 . The same components as those of the prior art are denoted by the same reference numerals. A liquid such as liquid crystal is stored in the tub 1, and the liquid is supplied to the syringe 3 through the first tube 11. The first tube 11 is formed of a synthetic rubber which is flexible and has corrosion resistance to a liquid agent, and is formed, for example, by a rubber or the like. Also, its direct control system has an outer diameter of 3 mm and an inner diameter of 1 mm. Both end portions of the first tube 11 are connected to the tub 1 and the syringe 3 through the joint portions 12a and 1 respectively. A first clamp 5 close valve 13a as a supply valve is disposed in the vicinity of the joint portion 12b. The arm 15 of the pinch valve Ua protrudes from the actuator portion 14, and the three holding pieces 16a to 16c project in parallel from the arm 15. In the holding pieces 16a to 16c, the holding pieces 16a, 16c on both sides are fixed with respect to the arm 15, and the center holding piece 16b is movable toward the holding piece 16& or the holding piece 16c. Further, the actuator unit 14 is controlled by a control unit (not shown), and the holding piece 16b is driven by the actuator unit 14. As shown in Fig. 2, the first tube is inserted between the holding sheets, for example, i6b. Further, when the holding piece 16b moves toward the holding piece 16a, the first pipe u is sandwiched between the holding pieces 16a and 16b and blocks the flow path of the liquid. Therefore, when the first tube 11 is not sandwiched between the two holding pieces 16a and 16b, if the plunger 7 rises, the liquid agent 15 is supplied from the barrel 1 to the syringe 3. Further, the two refreshing holding pieces 16a and 16b are disposed at a position within the inside of the joint portion 12, that is, the first tube is held near the syringe 3. The syringe 3 is connected to the nozzle 6 through a second tube having the same structure as the first tube. Both ends of the second tube 17 are connected to the syringe 3 and the nozzle 6 through the joint portions 20a and 18b, respectively. A second tightening valve as a tip between the joint portions 18a and 18b is provided. The second clamping jaw 13b is constructed in the same manner as the aforementioned first cooling. That is, the second clamp is controlled by the control unit, and is configured to hold the second pipe at a position within 10 mm of the joint portion 18a. In the syringe 3, the plunger 7 is inserted, and by the pressing operation of the plunger 7, the liquid stored in the syringe 3 is dropped from the nozzle 6. , "The configuration of the dispensing device, if the first officer 11 is opened by the first - clamping valve ..., and the second tube 17 of the second clamping valve 13b is closed and the plunger 7 is raised, the inside of the syringe 3 A small amount of liquid can be stored. Then, if the second tube 17 is opened in the first pinch valve 13a_the first tube u and the second pinch valve 13b, and the strong energy τ is read, the syringe 7 is pushed by the plunger 7 under the condition of In the liquid solution, the liquid agent will drip from the nozzle 6 at a certain speed. According to the above-described distribution device, the following effects can be obtained. (1) The first and second pinch valves that operate by the supply valve and the end valve. The flow path of the liquid agent can be blocked by simply holding the simple structure of the first and second tubes u, i7. This prevents the straw from being generated by the flow path switches of the first and second pinch valves 13a, 13b. <(7) Since the supply valve and the end valve have a simple structure, the cleaning time and the decomposition or assembly time at the time of washing can be shortened. (3) Since the supply valve and the end valve have a simple structure, it is possible to reduce the amount of (9) which is easy to cause, so that it is possible to reduce the amount of liquid which is high in volatility and which generates bubbles when it is washed and then opened again. The liquid mixture can also be dripped. The clamping chamber 13& is configured to hold the younger tube 11 at a position 10 mm from the joint portion 12b. Μ丄" ^ "匕Configuration, using the plunger 7 When the liquid agent is pushed and pressed, it can be used as a secret, and the expansion of the first tube 11 caused by the pressing force can be suppressed and the suppression of the fineness by the first plunger 7 can be suppressed. Absorption of 〇力. Therefore, it can make the amount of drip in the night of the sputum to stabilize. 20 1258188
(5)當液劑自桶Η共給至注射器3之供給時間比液劑自喷 嘴6滴下之吐出時間長時，將第一夾緊閥13a設為常開形式 且將第二夾緊閥13b設為常閉形式。又，當液劑自桶1供給 至注射器3之供給時間比液劑自噴嘴6滴下之吐出時間短 5時，則將第一夾緊閥13a設為常閉形式且將第二夾緊閥13b 設為常開形式。藉由此種構造，可縮短朝第一及第二夾緊 閥13a、13b之通電時間而抑制兩夾緊閥13a、13b之發熱， 且可降低消耗電力。 (第二實施形態） 10 第3及4圖係顯示第二實施形態。該實施形態係以共通 之1個夾緊閥19來構成前述第一實施形態之供給閥及末端 閥，即，第一及第二夾緊閥13a、13b。(5) When the supply time of the liquid agent from the barrel to the syringe 3 is longer than the discharge time of the liquid from the nozzle 6, the first pinch valve 13a is set to the normally open form and the second pinch valve 13b is used. Set to normally closed form. Further, when the supply time of the liquid agent from the tub 1 to the syringe 3 is shorter than the discharge time of the liquid agent dropping from the nozzle 6, the first pinch valve 13a is set to the normally closed form and the second pinch valve 13b is used. Set to the normally open form. With this configuration, the energization time to the first and second clamp valves 13a, 13b can be shortened, and the heat generation of the two pinch valves 13a, 13b can be suppressed, and the power consumption can be reduced. (Second Embodiment) 10 Figs. 3 and 4 show a second embodiment. In this embodiment, the supply valve and the end valve of the first embodiment, that is, the first and second pinch valves 13a and 13b, are constituted by a common one of the pinch valves 19.
即，將第一管11之接頭部12b側並列設置於第二管π。 又，如第4圖所示，於夾緊閥19之夾持片16a、16b間插通第 15 一管Η，且於夾持片16b、16c間插通第二管π。夾緊閥19 係構成為夾持片16b可分別朝夾持片16a、16b間之中間位置 與夾持片16a側及夾持片16c側驅動。 依此形成之分配裝置中，除了前述第一實施形態中所 知到之作用效果外，尚可得到如下所示之作用效果。 (1)由於可藉由1個夾緊閥19來構成供給閥及末端閥，因 此可減少零件數及降低零件成本。 前述各實施形態亦可藉由下述實施態樣來實施。 •第一及第二管11、17係只要是具有可撓性且對液劑 具有耐蝕性之材質，則亦可為前述材質以外之材質。 10 1258188 發明之效果 若藉由本發明，則可提供一種結構簡單且可抑制氣泡 之產生之分配裝置。 【圖式簡單說明】 5 第1圖係顯示第一實施形態之構造圖。 第2圖係顯示第一實施形態之夾緊閥之說明圖。 第3圖係顯示第二實施形態之構造圖。That is, the joint portion 12b side of the first pipe 11 is arranged side by side in the second pipe π. Further, as shown in Fig. 4, the 15th tube is inserted between the holding pieces 16a and 16b of the pinch valve 19, and the second tube π is inserted between the holding pieces 16b and 16c. The pinch valve 19 is configured such that the holding piece 16b can be driven toward the intermediate position between the holding pieces 16a and 16b and the side of the holding piece 16a and the side of the holding piece 16c. In the distribution device formed as described above, in addition to the effects obtained in the first embodiment, the following effects can be obtained. (1) Since the supply valve and the end valve can be constituted by one pinch valve 19, the number of parts can be reduced and the component cost can be reduced. The foregoing embodiments can also be implemented by the following embodiments. The first and second tubes 11 and 17 may be made of a material other than the above-mentioned materials as long as they are flexible and have corrosion resistance to the liquid agent. 10 1258188 EFFECT OF THE INVENTION According to the present invention, it is possible to provide a dispensing device which is simple in structure and can suppress the generation of bubbles. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural view showing a first embodiment. Fig. 2 is an explanatory view showing a pinch valve of the first embodiment. Fig. 3 is a structural view showing the second embodiment.
第4圖係顯示第二實施形態之夾緊閥之說明圖。 第5圖係顯示習知例之構造圖。 10 【圖式之主要元件代表符號表】 1".桶 2…管 3.. .注射器 4.. .隔膜閥 5.. .塞閥 6.. .喷嘴 7.. .柱塞 8.. .旋轉引動器 11.. .第一管 12a，12b，18a，18b...接頭部 13a...第一夾緊閥 13b...第二夾緊閥 14.. .引動器部 15···臂Fig. 4 is an explanatory view showing a pinch valve of the second embodiment. Fig. 5 is a structural view showing a conventional example. 10 [The main components of the drawing represent the symbol table] 1". Barrel 2...tube 3...Syringe 4... Diaphragm valve 5.. . Plug valve 6... Nozzle 7.. .Plunger 8.. Rotary actuator 11: first tube 12a, 12b, 18a, 18b... joint portion 13a... first pinch valve 13b... second pinch valve 14.... actuator portion 15·· ·arm
16a，16b，16c...夾持片 17.. .第二管 19.. .夾緊閥 1116a, 16b, 16c... holding piece 17... second tube 19.. clamping valve 11