JPH06249762A - Dispensing apparatus - Google Patents
Dispensing apparatusInfo
- Publication number
- JPH06249762A JPH06249762A JP3915793A JP3915793A JPH06249762A JP H06249762 A JPH06249762 A JP H06249762A JP 3915793 A JP3915793 A JP 3915793A JP 3915793 A JP3915793 A JP 3915793A JP H06249762 A JPH06249762 A JP H06249762A
- Authority
- JP
- Japan
- Prior art keywords
- fluid flow
- syringe
- switching valve
- liquid
- flow path
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】従来から溶液中の対象物質の濃度
の測定、溶液中に含まれる物質の検査等を高精度に達成
するとともに、これら測定、検査等に必要な作業の能率
を向上させるために、各種溶液を所望の順序で所望の溶
液収容槽中に分注する分注装置が提案されている。[Industrial application] Achieve high-accuracy measurement of the concentration of a target substance in a solution, inspection of substances contained in a solution, etc. and improve the efficiency of the work required for these measurements and inspections. Therefore, a dispenser has been proposed which dispenses various solutions in a desired order into a desired solution storage tank.
【０００２】上記分注装置としては、例えば、実開平４
−１２０３５９号公報に記載された構成のものが知られ
ている。実開平４−１２０３５９号公報に記載された分
注装置は、第１のシリンジを切替弁、第１の流体流路、
第２の流体流路を介して選択的に分注ノズルまたは液体
収容タンクと連通しているとともに、第１の流体流路の
途中部に第２のシリンジを連通している。そして、両シ
リンジのプランジャを連結体により互に連結し、連結体
を駆動装置と連結している。As the above-mentioned dispensing device, for example, an actual flatbed 4
The structure described in JP-A-120359 is known. The dispensing device described in Japanese Utility Model Laid-Open No. 4-120359 discloses a first syringe with a switching valve, a first fluid flow path,
It selectively communicates with the dispensing nozzle or the liquid storage tank via the second fluid channel, and also communicates with the second syringe in the middle of the first fluid channel. The plungers of both syringes are connected to each other by a connecting body, and the connecting body is connected to the drive device.
【０００３】したがって、分注ノズルを通して微量の液
体の吸入、吐出を行なわせる場合には、第１のシリンジ
を液体収容タンクと連通すべく切替弁を動作させた状態
において、駆動装置により連結体を所定距離だけ往復動
させればよい。また、ある程度の液体の吸入、吐出を行
なわせる場合には、第１のシリンジを分注ノズルと連通
すべく切替弁を動作させた状態において、駆動装置によ
り連結体を所定距離だけ往復動させればよい。即ち、前
者は第２のシリンジのみによる吸入、吐出となるのに対
して、後者は両シリンジによる吸入、吐出となり、吸
入、吐出量の大幅な変化に簡単に対処できる。また、２
つのシリンジが設けられているにも拘らず、駆動装置が
１系統だけでよいから、全体として構成を簡素化でき
る。Therefore, when a small amount of liquid is sucked and discharged through the dispensing nozzle, the connecting device is driven by the drive device while the switching valve is operated so that the first syringe communicates with the liquid storage tank. It is sufficient to reciprocate a predetermined distance. When a certain amount of liquid is to be sucked in and discharged, the drive device can reciprocate the connecting body by a predetermined distance in a state in which the switching valve is operated so that the first syringe communicates with the dispensing nozzle. Good. That is, in the former case, the suction and discharge are performed only by the second syringe, whereas in the latter case, the suction and discharge are performed by both syringes, and a large change in the suction and discharge amounts can be easily dealt with. Also, 2
Despite the fact that only one syringe is provided, only one system is required for the drive device, so that the overall configuration can be simplified.
【０００４】[0004]
【発明が解決しようとする課題】実開平４−１２０３５
９号公報に記載された装置を用いて処理対象液体の定量
吸入、吐出を行なわせるに当っては、少なくとも上記第
１の流体流路の殆どに非圧縮性の流体（具体的には液
体）を充填しておき、この状態でプランジャを所定距離
だけ往復動させることが必要になる。そして、この要求
を満足させるためには、以下の一連の動作を行なわせる
ことが必要になる。即ち、先ず、第１のシリンジを液体
収容タンクと連通すべく切替弁を動作させた状態におい
て、駆動装置により第１のシリンジの内部に液体（液体
収容タンク内の液体）を吸入させる。次いで、第１のシ
リンジを分注ノズルと連通すべく切替弁を動作させた状
態において、駆動装置により第１のシリンジの内部の液
体を吐出し、第１の流体流路および分注ノズルの全範囲
に液体を充満させる。その後、再び、第１のシリンジを
液体収容タンクと連通すべく切替弁を動作させた状態に
おいて、駆動装置により第１のシリンジの内部に液体を
吸入させると同時に第１の流体流路の内部の液体を第２
のシリンジの内部に吸入させる。さらに、第１のシリン
ジを分注ノズルと連通すべく切替弁を動作させた状態に
おいて、駆動装置により第１のシリンジの内部の液体お
よび第２のシリンジの内部の液体を第１の流体流路およ
び分注ノズルを通して吐出する。そして、両シリンジの
内部に気泡が存在しなくなるまで、切替弁の動作および
プランジャの往復動を反復させる。[Problems to be Solved by the Invention] Actual Kaihei 4-12035
In the case of using the device described in Japanese Patent Publication No. 9 to carry out a fixed amount suction and discharge of the liquid to be treated, at least most of the first fluid flow path is an incompressible fluid (specifically, liquid). It is necessary to refill the container and reciprocate the plunger for a predetermined distance in this state. Then, in order to satisfy this requirement, it is necessary to perform the following series of operations. That is, first, in a state in which the switching valve is operated to connect the first syringe to the liquid storage tank, the drive device sucks the liquid (the liquid in the liquid storage tank) into the first syringe. Then, in a state in which the switching valve is operated to communicate the first syringe with the dispensing nozzle, the liquid is discharged from the inside of the first syringe by the driving device, and the first fluid flow path and the dispensing nozzle are completely discharged. Fill the range with liquid. Then, again, in a state in which the switching valve is operated to communicate the first syringe with the liquid storage tank, the liquid is sucked into the first syringe by the drive device, and at the same time, the liquid inside the first fluid channel is sucked. Liquid second
Inhale into the syringe. Further, in a state in which the switching valve is operated to communicate the first syringe with the dispensing nozzle, the liquid inside the first syringe and the liquid inside the second syringe are moved by the drive device to the first fluid flow path. And through the dispensing nozzle. Then, the operation of the switching valve and the reciprocating movement of the plunger are repeated until air bubbles do not exist inside both syringes.
【０００５】以上の説明から明らかなように、両シリン
ジの内部に液体を充満させるためには、最も効果的に気
泡が排除できた場合であっても、プランジャを２回往復
動させなければならず、この結果、作業が繁雑化すると
ともに、所要時間が長くなるという不都合がある。ま
た、ある液体の分注を行なった後に、他の液体の分注を
行なう場合には、第１の流体流路および分注ノズルを通
して洗浄のための液体を吐出させることが必要になるの
であるが、この場合にも、上述のような切替弁の動作お
よびプランジャの往復動を行なわせることが必要にな
り、しかも洗浄の程度を高めようとすれば、上記動作を
必要回数だけ反復しなければならなくなるので、作業が
繁雑化するとともに、所要時間が長くなるという不都合
がある。As is clear from the above description, in order to fill the inside of both syringes with the liquid, the plunger must be reciprocated twice even if the bubbles can be eliminated most effectively. As a result, there is an inconvenience that the work becomes complicated and the required time becomes long. Further, when a certain liquid is dispensed and then another liquid is dispensed, it is necessary to discharge the cleaning liquid through the first fluid passage and the dispensing nozzle. However, also in this case, it is necessary to perform the operation of the switching valve and the reciprocating motion of the plunger as described above, and if the degree of cleaning is to be increased, the above operation must be repeated a necessary number of times. Therefore, there is a disadvantage that the work becomes complicated and the required time becomes long.
【０００６】[0006]
【発明の目的】この発明は上記の問題点に鑑みてなされ
たものであり、共通の駆動機構によりプランジャが往復
動される２つのシリンジの内部に液体を充満させるため
の作業を簡素化できるとともに、所要時間を短縮できる
分注装置を提供することを第１の目的とし、共通の駆動
機構によりプランジャが往復動される２つのシリンジを
有する分注装置における分注ノズルおよび該当する流体
流路の洗浄を行なわせるための作業を簡素化できるとと
もに、所要時間を短縮できる分注装置を提供することを
第２の目的としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and simplifies the work for filling the inside of two syringes in which the plungers reciprocate by a common drive mechanism with liquid. A first object of the present invention is to provide a dispensing device capable of shortening the required time, and a dispensing nozzle in a dispensing device having two syringes in which a plunger is reciprocated by a common drive mechanism and a corresponding fluid flow path. A second object of the present invention is to provide a dispensing device that can simplify the work for cleaning and can reduce the required time.
【０００７】[0007]
【課題を解決するための手段】上記の第１の目的を達成
するための、請求項１の分注装置は、分注ノズルに対し
て第１の流体流路を介して連通された第１のシリンジ
と、液体収容部および第１のシリンジに対して第１の切
替弁および第２、第３の流体流路を介して選択的に連通
された第２のシリンジと、両シリンジのプランジャを同
時に駆動する駆動機構とを有している分注装置であっ
て、第１の流体流路の所定位置に設けられた第２の切替
弁と、第２の切替弁と液体収容部とを連通する第４の流
体流路とをさらに有している。According to a first aspect of the present invention, there is provided a dispensing device as set forth in the first aspect, which is in communication with a dispensing nozzle via a first fluid passage. A syringe, a second syringe selectively connected to the liquid storage portion and the first syringe via the first switching valve and the second and third fluid flow paths, and a plunger for both syringes. A dispensing device having a driving mechanism that is driven at the same time, wherein a second switching valve provided at a predetermined position in the first fluid flow path, and the second switching valve and the liquid storage section are communicated with each other. And a fourth fluid flow path for controlling the flow rate.
【０００８】上記の第２の目的を達成するための、請求
項２の分注装置は、分注ノズルに対して第１の流体流路
を介して連通された第１のシリンジと、液体収容部およ
び第１のシリンジに対して第１の切替弁および第２、第
３の流体流路を介して選択的に連通された第２のシリン
ジと、両シリンジのプランジャを同時に駆動する駆動機
構とを有している分注装置であって、第３の流体流路の
所定位置に設けられた第３の切替弁と、少なくとも第１
の切替弁をバイパスする第５の流体流路と、第５の流体
流路に介在された吐出ポンプとをさらに有している。In order to achieve the above-mentioned second object, the dispensing device according to claim 2 has a first syringe which is in communication with the dispensing nozzle via a first fluid passage, and a liquid container. And a second syringe selectively connected to the first syringe via the first switching valve and the second and third fluid flow paths, and a drive mechanism for simultaneously driving the plungers of both syringes. And a third switching valve provided at a predetermined position of a third fluid flow path, and at least a first
It further has a fifth fluid flow path that bypasses the switching valve and the discharge pump interposed in the fifth fluid flow path.
【０００９】[0009]
【作用】請求項１の分注装置であれば、第１の切替弁を
交互に逆状態に動作させるとともに、両シリンジのプラ
ンジャを移動させて両シリンジの内部に液体を充満させ
るに当って、第２の切替弁を動作させることにより第１
のシリンジと第４の流体流路とを連通させておくだけで
よく、両プランジャの移動により両シリンジの内部に同
時に液体を充満させることができる。したがって、切替
弁の切替動作、プランジャの往復動を反復させなくても
両シリンジの内部に液体を充満させることができ、全体
として動作を簡素化できるとともに、所要時間を大幅に
短縮できることになる。もちろん、両プランジャを動作
させるための駆動機構が１系統だけでよいから、全体と
しての構成の簡素化、小形化、コストダウンを達成でき
ることになる。According to the dispenser of claim 1, when the first switching valve is alternately operated in the reverse state and the plungers of both syringes are moved to fill the inside of both syringes with liquid, By operating the second switching valve, the first
The syringe and the fourth fluid channel need only be communicated with each other, and the movement of both plungers can simultaneously fill the interior of both syringes with the liquid. Therefore, it is possible to fill the inside of both syringes with the liquid without repeating the switching operation of the switching valve and the reciprocating motion of the plunger, the operation can be simplified as a whole, and the required time can be greatly shortened. Of course, since only one drive mechanism is required to operate both plungers, the overall configuration can be simplified, miniaturized, and cost can be reduced.
【００１０】請求項２の分注装置であれば、少なくとも
分注ノズルおよび第１の流体流路を洗浄するに当って、
第３の切替弁を切替動作させて第５の流体流路を第１の
流体流路と連通させ、この状態において吐出ポンプを動
作させるだけで、液体収容部から連続的に液体を吸引し
て第１の流体流路および分注ノズルを通して吐出させる
ことができる。したがって、洗浄を行なうに当って切替
弁の切替動作および両シリンジのプランジャの往復動を
必要回数反復する従来装置と比較して、洗浄のために必
要な動作を著しく簡素化できるとともに、所要時間を大
幅に短縮できる。According to the dispensing device of claim 2, in cleaning at least the dispensing nozzle and the first fluid passage,
The third switching valve is switched to connect the fifth fluid flow path to the first fluid flow path, and the discharge pump is operated in this state to continuously suck the liquid from the liquid storage portion. It can be discharged through the first fluid flow path and the dispensing nozzle. Therefore, compared with the conventional device that repeats the switching operation of the switching valve and the reciprocating movements of the plungers of both syringes a required number of times when performing cleaning, the operation required for cleaning can be significantly simplified and the required time can be reduced. It can be greatly shortened.
【００１１】[0011]
【実施例】以下、実施例を示す添付図面によって詳細に
説明する。図１はこの発明の分注装置の一実施例の構成
を概略的に示す図であり、小径のシリンジ２と分注ノズ
ル１とを連通する第１の流体流路３の所定位置に第１の
三方切替弁４が介在されている。また、大径のシリンジ
５が第２の流体流路７を介して洗浄液タンク８に連通さ
れる状態と、第３の流体流路９を介して小径のシリンジ
２に連通される状態とを選択する第２の三方切替弁６が
設けられている。さらに、上記第１の三方切替弁４を、
第２の流体流路７の途中に介在された三方弁１０と連通
する第４の流体流路１１が設けられている。尚、２ａ，
５ａはプランジャであり、連結部１２により互に連結さ
れ、さらに１系統の駆動機構１３と連結されている。ま
た、１４は三方弁であり、小径のシリンジ２、第１の流
体流路３、および第３の流体流路９の間に介在されてい
る。Embodiments will be described in detail below with reference to the accompanying drawings showing embodiments. FIG. 1 is a diagram schematically showing the configuration of an embodiment of the dispensing apparatus of the present invention, in which a first fluid passage 3 communicating a small-diameter syringe 2 and a dispensing nozzle 1 is placed at a predetermined position. The three-way switching valve 4 is interposed. In addition, a state in which the large-diameter syringe 5 communicates with the cleaning liquid tank 8 via the second fluid flow path 7 and a state in which the large-diameter syringe 5 communicates with the small-diameter syringe 2 via the third fluid flow path 9 are selected. The second three-way switching valve 6 is provided. Furthermore, the first three-way switching valve 4 is
A fourth fluid passage 11 is provided in the middle of the second fluid passage 7 and communicates with the three-way valve 10 interposed therebetween. 2a,
Reference numeral 5a is a plunger, which is connected to each other by a connecting portion 12 and is further connected to a drive mechanism 13 of one system. Further, 14 is a three-way valve, which is interposed between the small-diameter syringe 2, the first fluid flow path 3, and the third fluid flow path 9.
【００１２】上記の構成の分注装置の作用は次のとおり
である。洗浄液タンク８から洗浄液を吸引して両シリン
ジ２，５に充満させる場合には、第１の三方切替弁４に
より小径のシリンジ２と三方弁１０とを第４の流体流路
１１を介して連通し、第２の三方切替弁６により大径の
シリンジ５と洗浄液タンク８とを第２の流体流路７を介
して連通する。そして、この状態において駆動機構１３
により両シリンジ２，５のプランジャ２ａ，５ａを同時
に後退させれば、洗浄タンク８から両シリンジ２，５に
洗浄液が吸入される（図１中、一点鎖線矢印参照）。The operation of the dispensing device having the above structure is as follows. When the cleaning liquid is sucked from the cleaning liquid tank 8 to fill both syringes 2 and 5, the first three-way switching valve 4 connects the small-diameter syringe 2 and the three-way valve 10 through the fourth fluid flow path 11. Then, the large-diameter syringe 5 and the cleaning liquid tank 8 are communicated with each other via the second fluid flow path 7 by the second three-way switching valve 6. Then, in this state, the drive mechanism 13
When the plungers 2a and 5a of both syringes 2 and 5 are retracted at the same time, the cleaning liquid is sucked from the cleaning tank 8 into both syringes 2 and 5 (see the one-dot chain line arrow in FIG. 1).
【００１３】両シリンジ２，５に吸入された洗浄液を吐
出する場合には、第１の三方切替弁４を逆に動作させる
とともに、第２の三方切替弁６を逆に動作させ、この状
態において駆動機構１３により両シリンジ２，５のプラ
ンジャ２ａ，５ａを同時に前進させれば、両シリンジ
２，５の内部の洗浄液が第１の流体流路３および分注ノ
ズル１を通して吐出される（図１中、破線矢印参照）。When the cleaning liquid sucked into both syringes 2 and 5 is discharged, the first three-way switching valve 4 is operated in reverse and the second three-way switching valve 6 is operated in reverse. When the plungers 2a and 5a of both syringes 2 and 5 are simultaneously advanced by the drive mechanism 13, the cleaning liquid inside both syringes 2 and 5 is discharged through the first fluid flow path 3 and the dispensing nozzle 1 (FIG. 1). Middle, see dashed arrow).
【００１４】即ち、両三方切替弁４，６の切替動作を行
なうとともに、プランジャ２ａ，５ａを１回往復動させ
るだけで、プランジャ２，５の内部および流体流路３，
７，９の内部に洗浄液を充満させることができる。即
ち、所定量の処理対象液体を分注し得る状態になる。処
理対象液体の分注を行なう場合には、第１の三方切替弁
４をそのままの状態に保持し、必要に応じて（具体的に
は、処理対象液体の分注量が多い場合には）第２の三方
切替弁６により大径のシリンジ５と洗浄液タンク８とを
第２の流体流路７を介して連通し、この状態においてプ
ランジャ２ａ，５ａを僅かに後退させて液体分離用の空
気層を形成し、次いで分注ノズル１を処理対象液体に浸
漬させた状態でプランジャ２ａ，５ａをさらに後退させ
ることにより処理対象液体を所定量だけ吸入する。その
後、分注ノズル１を吐出対象位置まで移動させてプラン
ジャ２ａ，５ａを前進させることにより所定量の処理対
象液体を吐出する。That is, the switching operation of the two three-way switching valves 4 and 6 is performed, and the plungers 2a and 5a are reciprocated only once, so that the inside of the plungers 2 and 5 and the fluid passages 3 and 5 can be controlled.
The inside of 7, 9 can be filled with the cleaning liquid. That is, a predetermined amount of liquid to be treated can be dispensed. When the liquid to be treated is dispensed, the first three-way switching valve 4 is held in the state as it is, and as necessary (specifically, when the dispensed amount of the liquid to be treated is large). The second three-way switching valve 6 allows the large-diameter syringe 5 and the cleaning liquid tank 8 to communicate with each other through the second fluid flow path 7, and in this state, the plungers 2a and 5a are slightly retracted to separate air for liquid separation. A layer is formed, and then the plunger 2a, 5a is further retracted while the dispensing nozzle 1 is immersed in the liquid to be treated so that the liquid to be treated is sucked by a predetermined amount. Then, the dispensing nozzle 1 is moved to the ejection target position and the plungers 2a and 5a are advanced to eject a predetermined amount of the liquid to be treated.
【００１５】尚、続いて異なる種類の処理対象液体等の
点着を行なう必要がある場合には、両三方切替弁４，６
の切替動作を行なうとともに、プランジャ２ａ，５ａを
少なくとも１回往復動させることにより分注ノズル１お
よび第１の流体流路３の内部を洗浄し、再び分注のため
の動作を行なえばよい。When it is necessary to subsequently deposit different types of liquids to be treated, etc., both three-way switching valves 4, 6
It is sufficient to perform the switching operation of 1) and to reciprocate the plungers 2a and 5a at least once to clean the inside of the dispensing nozzle 1 and the first fluid flow path 3 and perform the dispensing operation again.
【００１６】[0016]
【実施例２】図２はこの発明の分注装置の他の実施例の
構成を概略的に示す図であり、図１の分注装置と異なる
点は、第１の三方切替弁４および第４の流体流路１１を
省略し、第３の流体流路９の途中に第３の三方切替弁１
５を設け、三方弁１０と第３の三方切替弁１５との間を
連通すべく吐出ポンプ１６が介在された第５の流体流路
１７を設けた点のみである。[Embodiment 2] FIG. 2 is a diagram schematically showing the construction of another embodiment of the dispensing apparatus of the present invention. The difference from the dispensing apparatus of FIG. 1 is that the first three-way switching valve 4 and the 4 is omitted, and the third three-way switching valve 1 is provided in the middle of the third fluid flow path 9.
5 is provided, and the fifth fluid flow path 17 in which the discharge pump 16 is interposed is provided to connect the three-way valve 10 and the third three-way switching valve 15 to each other.
【００１７】したがって、この実施例の場合には、第２
の三方切替弁６により大径のシリンジ５と洗浄液タンク
８とを第２の流体流路７を介して連通し、第３の三方切
替弁１５により第５の流体流路１７と第３の流体流路９
とを連通した状態において両シリンジ２，５のプランジ
ャ２ａ，５ａを後退させることにより両シリンジ２，５
の内部に洗浄液を充満させることができる（図２中一点
鎖線参照）。次いで、三方切替弁６，１５を逆に動作さ
せ、この状態において駆動機構１３により両シリンジ
２，５のプランジャ２ａ，５ａを同時に前進させれば、
両シリンジ２，５の内部の洗浄液が第１の流体流路３お
よび分注ノズル１を通して吐出される（図２中破線参
照）。Therefore, in the case of this embodiment, the second
The three-way switching valve 6 allows the large-diameter syringe 5 and the washing liquid tank 8 to communicate with each other via the second fluid flow path 7, and the third three-way switching valve 15 allows the fifth fluid flow path 17 and the third fluid to flow. Channel 9
By retreating the plungers 2a and 5a of both syringes 2 and 5 in a state of communicating with
The inside of the can be filled with the cleaning liquid (see the one-dot chain line in FIG. 2). Next, the three-way switching valves 6 and 15 are operated in reverse, and in this state, the drive mechanism 13 advances the plungers 2a and 5a of both syringes 2 and 5 at the same time.
The cleaning liquid inside both syringes 2 and 5 is discharged through the first fluid flow path 3 and the dispensing nozzle 1 (see the broken line in FIG. 2).
【００１８】また、処理対象液体の分注動作と他の処理
対象液体の分注動作との間における洗浄動作は、特別に
プランジャ２ａ，５ａを往復動させる必要がなく、単に
吐出ポンプ１６を動作させるだけでよい（図２中二点鎖
線参照）。もちろん、第３の三方切替弁１５を動作させ
て第５の流体流路１７と第３の流体流路９とを連通して
おく必要がある。したがって、プランジャ２ａ，５ａを
往復動させて洗浄を行なう場合と比較して、洗浄のため
の所要時間を大幅に短縮でき、ひいては、検査等の所要
時間を短縮できる。In the cleaning operation between the dispensing operation of the liquid to be processed and the dispensing operation of the other liquid to be processed, it is not necessary to reciprocate the plungers 2a and 5a, and the discharge pump 16 is simply operated. It is sufficient to do so (see the chain double-dashed line in FIG. 2). Of course, it is necessary to operate the third three-way switching valve 15 so that the fifth fluid passage 17 and the third fluid passage 9 are in communication with each other. Therefore, as compared with the case where the plungers 2a and 5a are reciprocally moved to perform cleaning, the time required for cleaning can be significantly shortened, which in turn shortens the time required for inspection and the like.
【００１９】[0019]
【実施例３】図３はこの発明の分注装置のさらに他の実
施例の構成を概略的に示す図であり、図１の分注装置と
異なる点は、三方弁１０に代えて四方弁１８を設けた
点、および第３の流体流路９の途中に第３の三方切替弁
１５を設け、四方弁１８と第３の三方切替弁１５との間
を連通すべく吐出ポンプ１６が介在された第５の流体流
路１７を設けた点のみである。[Embodiment 3] FIG. 3 is a diagram schematically showing the construction of still another embodiment of the dispensing apparatus of the present invention. The difference from the dispensing apparatus of FIG. 1 is that the three-way valve 10 is replaced by a four-way valve. The third three-way switching valve 15 is provided at the point where 18 is provided, and in the middle of the third fluid flow path 9, and the discharge pump 16 is interposed so as to establish communication between the four-way valve 18 and the third three-way switching valve 15. It is only that the fifth fluid flow path 17 is provided.
【００２０】したがって、この実施例の場合には、吐出
ポンプ１６が介在された第５の流体流路１７を用いるこ
となく、実施例１と同様にプランジャ２ａ，５ａを１回
往復動させるだけで必要な全範囲に洗浄液を充満させる
ことができる。そして、処理対象液体の分注動作と他の
処理対象液体の分注動作との間における第１の流体流路
３および分注ノズル１の洗浄を行なうに当っては、吐出
ポンプ１６が介在された第５の流体流路１７を用いて実
施例２と同様にして短時間で洗浄を達成できる。Therefore, in the case of this embodiment, the plungers 2a and 5a can be reciprocated once as in the first embodiment without using the fifth fluid passage 17 in which the discharge pump 16 is interposed. The entire range required can be filled with the cleaning liquid. The discharge pump 16 intervenes in the cleaning of the first fluid flow path 3 and the dispensing nozzle 1 between the dispensing operation of the liquid to be treated and the dispensing operation of the other liquid to be treated. By using the fifth fluid flow path 17, the cleaning can be achieved in a short time as in the second embodiment.
【００２１】[0021]
【発明の効果】以上のように請求項１の発明は、切替弁
の切替動作、プランジャの往復動を反復させなくても両
シリンジの内部に液体を充満させることができ、全体と
して動作を簡素化できるとともに、所要時間を大幅に短
縮でき、しかも、両プランジャを動作させるための駆動
機構が１系統だけでよいから、全体としての構成の簡素
化、小形化、コストダウンを達成できるという特有の効
果を奏する。As described above, the invention of claim 1 can fill the inside of both syringes with liquid without repeating the switching operation of the switching valve and the reciprocating motion of the plunger, and the operation is simplified as a whole. It is possible to reduce the required time significantly, and since only one drive mechanism is required to operate both plungers, it is possible to achieve simplification of the overall configuration, downsizing, and cost reduction. Produce an effect.
【００２２】請求項２の発明は、洗浄を行なうに当って
切替弁の切替動作および両シリンジのプランジャの往復
動を必要回数反復する従来装置と比較して、洗浄のため
に必要な動作を著しく簡素化できるとともに、所要時間
を大幅に短縮できるという特有の効果を奏する。According to the second aspect of the present invention, the operation required for cleaning is remarkably performed as compared with the conventional apparatus in which the switching operation of the switching valve and the reciprocating movements of the plungers of both syringes are repeated a necessary number of times when performing cleaning. It has a unique effect that it can be simplified and the required time can be significantly shortened.
【図１】この発明の分注装置の一実施例の構成を概略的
に示す図である。FIG. 1 is a diagram schematically showing a configuration of an embodiment of a dispensing device of the present invention.
【図２】この発明の分注装置の他の実施例の構成を概略
的に示す図である。FIG. 2 is a diagram schematically showing the configuration of another embodiment of the dispensing device of the present invention.
【図３】この発明の分注装置のさらに他の実施例の構成
を概略的に示す図である。FIG. 3 is a diagram schematically showing the configuration of still another embodiment of the dispensing device of the present invention.
１ 分注ノズル ２ 小径のシリンジ ２ａ プランジャ ３ 第１の流体流路 ４ 第１の三方切替弁 ５ 大径のシリンジ ５ａ プランジャ ６ 第２の三方切替弁 ７ 第２の流体流路 ８ 洗浄液タンク ９ 第３の流体流路 １１ 第４の流体流路 １２ 連結部 １３ 駆動機構 １５ 第３の三方切替弁 １６ 吐出ポンプ １７ 第５の流体流路 1 Dispensing Nozzle 2 Small Diameter Syringe 2a Plunger 3 First Fluid Flow Path 4 First Three-Way Switching Valve 5 Large Diameter Syringe 5a Plunger 6 Second Three-Way Switching Valve 7 Second Fluid Flow Path 8 Cleaning Solution Tank 9th 3 fluid flow path 11 4th fluid flow path 12 connection part 13 drive mechanism 15 3rd three-way switching valve 16 discharge pump 17 5th fluid flow path
Claims (2)
路（３）を介して連通された第１のシリンジ（２）と、
液体収容部（８）および第１のシリンジ（２）に対して
第１の切替弁（６）および第２、第３の流体流路（７）
（９）を介して選択的に連通された第２のシリンジ
（５）と、両シリンジ（２）（５）のプランジャ（２
ａ）（５ａ）を同時に駆動する駆動機構（１２）（１
３）とを有している分注装置であって、第１の流体流路
（３）の所定位置に設けられた第２の切替弁（４）と、
第２の切替弁（４）と液体収容部（８）とを連通する第
４の流体流路（１１）とをさらに有していることを特徴
とする分注装置。1. A first syringe (2) in communication with a dispensing nozzle (1) via a first fluid flow path (3),
A first switching valve (6) and second and third fluid flow paths (7) for the liquid storage portion (8) and the first syringe (2).
A second syringe (5) that is selectively communicated via (9) and a plunger (2) of both syringes (2) (5).
drive mechanism (12) (1) for simultaneously driving a) (5a)
3) and a second switching valve (4) provided at a predetermined position of the first fluid flow path (3),
Dispensing device further comprising a fourth fluid flow path (11) communicating with the second switching valve (4) and the liquid storage portion (8).
路（３）を介して連通された第１のシリンジ（２）と、
液体収容部（８）および第１のシリンジ（２）に対して
第１の切替弁（６）および第２、第３の流体流路（７）
（９）を介して選択的に連通された第２のシリンジ
（５）と、両シリンジ（２）（５）のプランジャ（２
ａ）（５ａ）を同時に駆動する駆動機構（１２）（１
３）とを有している分注装置であって、第３の流体流路
（９）の所定位置に設けられた第３の切替弁（１５）
と、少なくとも第１の切替弁（６）をバイパスする第５
の流体流路（１７）と、第５の流体流路（１７）に介在
された吐出ポンプ（１６）とをさらに有していることを
特徴とする分注装置。2. A first syringe (2) in communication with the dispensing nozzle (1) via a first fluid flow path (3),
A first switching valve (6) and second and third fluid flow paths (7) for the liquid storage portion (8) and the first syringe (2).
A second syringe (5) that is selectively communicated via (9) and a plunger (2) of both syringes (2) (5).
drive mechanism (12) (1) for simultaneously driving a) (5a)
And a third switching valve (15) provided at a predetermined position in the third fluid flow path (9).
And a fifth bypassing at least the first switching valve (6)
And a discharge pump (16) interposed in the fifth fluid flow path (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3915793A JP3307705B2 (en) | 1993-03-01 | 1993-03-01 | Dispensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3915793A JP3307705B2 (en) | 1993-03-01 | 1993-03-01 | Dispensing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06249762A true JPH06249762A (en) | 1994-09-09 |
| JP3307705B2 JP3307705B2 (en) | 2002-07-24 |
Family
ID=12545282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3915793A Expired - Fee Related JP3307705B2 (en) | 1993-03-01 | 1993-03-01 | Dispensing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3307705B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005518542A (en) * | 2002-02-25 | 2005-06-23 | スタゴ インストゥルメンツ | Automatic precision pipetting device |
| JP2009531160A (en) * | 2006-01-06 | 2009-09-03 | ジルソン エス．アー．エス． | Multi-volume pipette |
| JP2012509485A (en) * | 2008-11-18 | 2012-04-19 | ダイアシス テクノロジーズ エス・ア・エール・エル | Automatic dispensing device and automatic analyzer with two pump units with different capacities |
| JP2013024621A (en) * | 2011-07-19 | 2013-02-04 | Hitachi High-Technologies Corp | Sample introduction device |
| JP2015500983A (en) * | 2011-11-16 | 2015-01-08 | ライカ・バイオシステムズ・メルボルン・プロプライエタリー・リミテッドＬｅｉｃａ Ｂｉｏｓｙｓｔｅｍｓ Ｍｅｌｂｏｕｒｎｅ Ｐｔｙ Ｌｔｄ | Automated system and method for processing tissue samples on slides |
| JP2023532282A (en) * | 2020-06-26 | 2023-07-27 | シーメンス・ヘルスケア・ダイアグノスティックス・インコーポレイテッド | Fluid metering device with reduced cross-contamination |
-
1993
- 1993-03-01 JP JP3915793A patent/JP3307705B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005518542A (en) * | 2002-02-25 | 2005-06-23 | スタゴ インストゥルメンツ | Automatic precision pipetting device |
| JP2009531160A (en) * | 2006-01-06 | 2009-09-03 | ジルソン エス．アー．エス． | Multi-volume pipette |
| JP2012509485A (en) * | 2008-11-18 | 2012-04-19 | ダイアシス テクノロジーズ エス・ア・エール・エル | Automatic dispensing device and automatic analyzer with two pump units with different capacities |
| JP2013024621A (en) * | 2011-07-19 | 2013-02-04 | Hitachi High-Technologies Corp | Sample introduction device |
| JP2015500983A (en) * | 2011-11-16 | 2015-01-08 | ライカ・バイオシステムズ・メルボルン・プロプライエタリー・リミテッドＬｅｉｃａ Ｂｉｏｓｙｓｔｅｍｓ Ｍｅｌｂｏｕｒｎｅ Ｐｔｙ Ｌｔｄ | Automated system and method for processing tissue samples on slides |
| US9395284B2 (en) | 2011-11-16 | 2016-07-19 | Leica Biosystems Melbourne Pty Ltd | Automated system and method of treating tissue samples on slides |
| JP2023532282A (en) * | 2020-06-26 | 2023-07-27 | シーメンス・ヘルスケア・ダイアグノスティックス・インコーポレイテッド | Fluid metering device with reduced cross-contamination |
| US11913817B2 (en) | 2020-06-26 | 2024-02-27 | Siemens Healthcare Diagnostics Inc. | Fluid metering device with reduced cross contamination |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3307705B2 (en) | 2002-07-24 |
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