JPH04120331U - Dispensing quantitative pump - Google Patents
Dispensing quantitative pumpInfo
- Publication number
- JPH04120331U JPH04120331U JP5241091U JP5241091U JPH04120331U JP H04120331 U JPH04120331 U JP H04120331U JP 5241091 U JP5241091 U JP 5241091U JP 5241091 U JP5241091 U JP 5241091U JP H04120331 U JPH04120331 U JP H04120331U
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- bellows
- dispensing
- nozzle
- feed screw
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
(57)【要約】 （修正有）
【目的】 所要量の液体を他の容器又は所定の分析位置
まで移送するように構成されたピペット装置において、
液体の分注容量を精度よくする分注用定量性ポンプを提
供する。
【構成】 ピペットと液槽の間にベローズ１を配設し、
その容量の増減を送りねじ２で調整し、ステッピングモ
ータ６にも連動した。
【効果】 金属製ベローズとしたため、耐腐蝕性が向上
し、その定量性は秀れている。
(57) [Summary] (with amendments) [Purpose] In a pipetting device configured to transfer a required amount of liquid to another container or a predetermined analysis position,
Provided is a quantitative dispensing pump that accurately dispenses liquid. [Configuration] Bellows 1 is placed between the pipette and the liquid tank,
The increase/decrease in capacity was adjusted by the feed screw 2, which was also linked to the stepping motor 6. [Effect] Since the metal bellows is used, corrosion resistance is improved and its quantitative properties are excellent.
Description
【０００１】0001
本考案は生化学や臨床化学分野で用いる自動化学分析装置において、検体や試 薬類の分注に用いるピペット類において、特に定量性の向上を図る分野に利用さ れる。 This invention is suitable for automatic chemical analyzers used in the fields of biochemistry and clinical chemistry. Used in pipettes used for dispensing medicines, especially in areas where quantitative performance is to be improved. It will be done.
【０００２】0002
【従来の技術】 従来この種の技術としては、例えば実願平２−１１１０６ 号に示されるように検体並びに試薬を分注するときはシリンジで吸引し、検体や 試薬を脱気水で押出す方法が採られている。その他、実開昭５７−１６０６２８ 号に示される蛇腹ポンプの収縮量からの定量分注器や実開平１−６７５２８号の 蛇腹部を有して液槽から他槽への分注方法が開示されている。[Prior Art] Conventionally, this type of technology is disclosed in Utility Model Application No. 2-11106, for example. When dispensing specimens and reagents, aspirate them with a syringe as shown in the A method has been adopted in which the reagent is extruded using degassed water. Others, Utsukai Showa 57-160628 The metering dispenser based on the contraction amount of the bellows pump shown in No. A method of dispensing liquid from one tank to another tank using a bellows part is disclosed.
【０００３】0003
従来の技術においては、上述の実開昭５７−１６０６２８号では蛇腹ポンプの 収縮量を示す目盛表示部を設けて流動物の定量を行なっているが、目視で実測す るために液量の制御は十分ではなく、実開平１ー６７５２８号の液体肥料計量器 は、肥料槽の送液のごとく、大よその送液を計量する場合にはよいが、分注のご とき、数μｌ〜数十μｌの微小量の送液には不十分であり、また実願平２−１１ １０６号のごとく、シリンジを用いる場合は、外筒とピストン間で摩擦を生ずる 部分でのリークを最小限におさえる必要があり、ために精密加工の必要性を生じ 、さらに摩耗によりリークが増大するなど、耐久性にも欠点が見られた。 In the conventional technology, the above-mentioned Utility Model Application No. 57-160628 uses a bellows pump. Although a scale display unit that indicates the amount of shrinkage is installed to quantify the fluid, it is difficult to measure it visually. The liquid fertilizer metering device of Utility Model Application Publication No. 1-67528 is not sufficient to control the liquid amount. is good for measuring the approximate amount of liquid to be pumped, such as when pumping liquid to a fertilizer tank, but it is not suitable for dispensing. In some cases, it is insufficient to send a minute amount of liquid, from several μl to several tens of μl, and When using a syringe, as in No. 106, friction occurs between the outer cylinder and the piston. It is necessary to minimize leakage in parts, which creates the need for precision machining. Furthermore, there were also shortcomings in durability, such as increased leakage due to wear.
【０００４】0004
本考案はシリンダに代えてベローズを使用することによって、摩耗を生ずる部 分を持つことが殆んどなく、耐久性の向上につながるものである。さらに、ステ ッピングモータの駆動で、送りネジの上・下とベローズの伸・縮に応じてステッ ピングモータの送りステップ数に比例して吸引サンプル量の容量制御を正確に改 善したものである。このため、上述の公知の方法に見られない分注精度の向上が 図られた。 This invention uses a bellows instead of a cylinder to reduce friction in areas that cause wear. There is almost no moisture retention, which leads to improved durability. In addition, Driven by a stepping motor, stepping is performed according to the top and bottom of the feed screw and the expansion and contraction of the bellows. Accurately adjust the volume control of the aspirated sample volume in proportion to the number of feeding steps of the ping motor. It is good. Therefore, the improvement in dispensing accuracy that cannot be seen in the above-mentioned known methods is achieved. It was planned.
【０００５】[0005]
図１は本考案に係る断面図であり、１はベローズを示し、液体に対し、耐腐蝕 性であり、また剛性の高い金属材料から選ばれ、例えば、ステンレス鋼、ニッケ ル鋼などが使用される。 FIG. 1 is a cross-sectional view of the present invention, and 1 indicates a bellows, which is corrosion-resistant against liquid. Selected from metal materials that are flexible and have high rigidity, such as stainless steel and nickel. steel etc. are used.
【０００６】 ノズル部７は図２に示すロボットアーム１２の先端に取付けられ、試薬類を分 注する反応管、希釈管、液体キュベット、試薬容器、洗浄槽などの所定位置に移 動できるように構成され、ノズル７は回転駆動手段、パルズモータ、および位置 センサの働きによって、所定の位置に位置決めが行われた後、ノズルは、上・下 駆動手段により降下が行われ、液面センサの働きで、ノズル先端７は分注液中に 液面下僅かに下方に停止する。この状態で電磁弁１０をＯＦＦのまヽ、ステッピ ングモータ６を駆動し、送りねじ２の移動に併い、ベローズ１を伸長させ、該ス テッピングモータ６の送りステップ数に比例した容量の分注液をノズル７内に吸 引する。つぎにノズル７はロボットアームの位置センサの働きで反応管の上部に 位置決めする。電磁弁１０をＯＦＦにし、図１の図示と同様な構造のポンプによ り、電磁弁１０のＣＯＭの位置より規定量の脱気水１１を送り込むと、ノズル７ 内にあった分注液は脱気水と共に反応管に排出される。送りネジ２はベアリング ４とメネジ３を連通して配立し、カップリング５を経て、ステッピングモータ６ に連結する。ベローズ１はアーム１３を介してメネジ２を併う送りネジ２とガイ ドシャフト９間を対称形に配位し、該ベローズ１の働きを円滑化するためガイド シャフト９に取組んだリニヤボールガイド８が介在する。[0006] The nozzle part 7 is attached to the tip of the robot arm 12 shown in Fig. 2, and is used to separate reagents. Place the reaction tube, dilution tube, liquid cuvette, reagent container, washing tank, etc. in place. The nozzle 7 is configured to be movable, and the nozzle 7 is configured to have a rotary drive means, a pulse motor and a position After the nozzle is positioned at a predetermined position by the sensor, the nozzle moves upward and downward. The drive means lowers the nozzle tip 7 into the dispensed liquid due to the action of the liquid level sensor. It stops slightly below the liquid level. In this state, turn off the solenoid valve 10 and step The bellows 1 is extended as the feed screw 2 moves. A volume of dispensed liquid proportional to the number of feeding steps of the stepping motor 6 is sucked into the nozzle 7. pull Next, nozzle 7 is placed at the top of the reaction tube using the robot arm's position sensor. Position. Turn off the solenoid valve 10 and use a pump with a structure similar to that shown in Figure 1. When a specified amount of deaerated water 11 is sent from the COM position of the solenoid valve 10, the nozzle 7 The dispensing liquid inside is discharged into the reaction tube together with degassed water. Feed screw 2 is a bearing 4 and the female thread 3 are arranged in communication, and the stepping motor 6 is connected through the coupling 5. Connect to. The bellows 1 is connected to the feed screw 2 with the female screw 2 via the arm 13 and the guide. A guide is arranged symmetrically between the bellows 1 to facilitate the function of the bellows 1. A linear ball guide 8 is interposed that engages the shaft 9.
【０００７】[0007]
以上詳細したように本考案に係る分注用定量性ポンプは、従来の分注方式に比 して摩擦する部分が少なく、リークする部分がないため、分注液に関してのの耐 久性があり、併せて、送りネジ及びステッピングモータ並びにベロースの組合せ 容量制御を行い、その定量性を従来法に比して向上させたものである。 As detailed above, the quantitative dispensing pump according to the present invention is compared to the conventional dispensing method. Because there are fewer friction points and no leakage points, there is less resistance to dispensing liquid. It is durable, and also has a combination of a feed screw, stepping motor, and bellows. This method performs volume control and improves quantitative performance compared to conventional methods.
【０００８】[0008]
【提出日】平成３年７月２６日[Submission date] July 26, 1991
【手続補正１】[Procedural amendment 1]
【補正対象書類名】明細書[Name of document to be amended] Specification
【補正対象項目名】０００６[Correction target item name] 0006
【補正方法】変更[Correction method] Change
【０００６】 ノズル部７は図２に示すロボットアーム１２の先端に取付けられ、試薬類を分 注する反応管、希釈管、液体キュベット、試薬容器、洗浄槽などの所定位置に移 動できるように構成され、ノズル７は回転駆動手段、パルスモータ、および位置 センサの働きによって、所定の位置に位置決めが行われた後、ノズルは、上・下 駆動手段により降下が行われ、液面センサの働きで、ノズル先端７は分注液中に 液面下僅かに下方に停止する。この状態で電磁弁１０をＯＦＦのまゝステッピン グモータ６を駆動し、送りねじ２の移動に併い、ベローズ１を伸長させ、該ステ ッピングモータ６の送りステップ数に比例した容量の分注液をノズル７内に吸引 する。つぎにノズル７はロボットアームの位置センサの働きで反応管の上部に位 置決めする。電磁弁１０をＯＦＦにし、図１の図示と同様な構造のポンプにより 、電磁弁１０のＣＯＭの位置より規定量の脱気水１１を送り込むと、ノズル７内 にあった分注液は脱気水と共に反応管に排出される。送りネジ２はベアリング４ とメネジ３を連通して配立し、カップリング５を経て、ステッピングモータ６に 連結する。ベローズ１はアーム１３を介してメネジ２を併う送りネジ２とガイド シャフト９間を対称形に配位し、該ベローズ１の働きを円滑化するためガイドシ ャフト９に取組んだリニヤボールガイド８が介在する。[0006] The nozzle part 7 is attached to the tip of the robot arm 12 shown in Fig. 2, and is used to separate reagents. Place the reaction tube, dilution tube, liquid cuvette, reagent container, washing tank, etc. in place. The nozzle 7 is configured to be movable, and the nozzle 7 is provided with a rotary drive means, a pulse motor, and a position After the nozzle is positioned at a predetermined position by the sensor, the nozzle moves upward and downward. The drive means lowers the nozzle tip 7 into the dispensed liquid due to the action of the liquid level sensor. It stops slightly below the liquid level. In this state, step with the solenoid valve 10 OFF. As the feed screw 2 moves, the bellows 1 is extended, and the step motor 6 is driven. A volume of dispensed liquid proportional to the number of feeding steps of the topping motor 6 is sucked into the nozzle 7. do. Next, nozzle 7 is positioned at the top of the reaction tube using the position sensor of the robot arm. Determine the position. Turn off the solenoid valve 10 and use a pump with a structure similar to that shown in FIG. , when a specified amount of deaerated water 11 is sent from the COM position of the solenoid valve 10, the inside of the nozzle 7 The dispensed liquid that was in the tank is discharged into the reaction tube together with degassed water. Feed screw 2 is bearing 4 and the female screw 3 are arranged in communication, and then connected to the stepping motor 6 via the coupling 5. Link. The bellows 1 is connected to the feed screw 2 with the female thread 2 via the arm 13 as a guide. A guide system is provided to arrange the shafts 9 symmetrically and to facilitate the function of the bellows 1. A linear ball guide 8, which engages the shaft 9, is interposed.
【手続補正２】[Procedural amendment 2]
【補正対象書類名】明細書[Name of document to be amended] Specification
【補正対象項目名】０００７[Correction target item name] 0007
【補正方法】変更[Correction method] Change
【０００７】[0007]
以上詳細したように本考案に係る分注用定量性ポンプは、従来の分注方式に比 して摩擦する部分が少なく、リークする部分がないため、分注液に関しての耐久 性があり、併せて、送りネジ及びステッピングモータ並びにベローズの組合せ容 量制御を行い、その定量性を従来法に比して向上させたものである。 As detailed above, the quantitative dispensing pump according to the present invention is compared to the conventional dispensing method. There are fewer friction points and no leakage points, so the durability of the dispensed liquid is improved. In addition, the combination capacity of the feed screw, stepping motor, and bellows is This method controls the amount and improves quantitative performance compared to conventional methods.
【図１】本考案に係る分注用定量性ポンプの構成の断面
図である。FIG. 1 is a sectional view of the configuration of a metering pump for dispensing according to the present invention.
【図２】ロボットアームに関する詳細部を示す。FIG. 2 shows details regarding the robot arm.
１ ベロース ２ 送りねじ ６ ステッピングモータ ７ ノズル １０ 電磁弁 １１ 脱気水槽 １２ ロボットアーム 1 bellows 2 Feed screw 6 Stepping motor 7 Nozzle 10 Solenoid valve 11 Deaeration water tank 12 Robot arm
Claims (1)
トを用いて所要量吸引し、この吸引された所要量の液体
を他の容器又は所定の分析位置まで移送するよう構成さ
れてなるピペット装置において、液体の吸引及び排出の
容積制御のためピペットと液槽の間に金属製ベローズを
配設し、ステッピングモータの回転に併せて送りねじを
連動構成したことを特徴とする分注用定量性ポンプClaim 1: A pipette configured to aspirate a required amount of liquid contained in one container using a pipette and transfer the aspirated required amount of liquid to another container or a predetermined analysis position. A metering device for dispensing, characterized in that a metal bellows is disposed between the pipette and the liquid tank to control the volume of liquid suction and discharge, and a feed screw is configured to interlock with the rotation of the stepping motor. sex pump
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5241091U JPH04120331U (en) | 1991-04-11 | 1991-04-11 | Dispensing quantitative pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5241091U JPH04120331U (en) | 1991-04-11 | 1991-04-11 | Dispensing quantitative pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04120331U true JPH04120331U (en) | 1992-10-28 |
Family
ID=31928828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5241091U Pending JPH04120331U (en) | 1991-04-11 | 1991-04-11 | Dispensing quantitative pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04120331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007180106A (en) * | 2005-12-27 | 2007-07-12 | Daiwa Yuso Kiki Kk | Impregnation injection method and device therefor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535662A (en) * | 1976-06-30 | 1978-01-19 | Lumac Int Nv | Apparatus for measuring and distributing liquid |
| JPS62245114A (en) * | 1986-04-17 | 1987-10-26 | Iwaki:Kk | Quantitative pump |
| JPH0357921A (en) * | 1989-07-27 | 1991-03-13 | Miyota Seimitsu Kk | Precisely discharging dispenser |
-
1991
- 1991-04-11 JP JP5241091U patent/JPH04120331U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535662A (en) * | 1976-06-30 | 1978-01-19 | Lumac Int Nv | Apparatus for measuring and distributing liquid |
| JPS62245114A (en) * | 1986-04-17 | 1987-10-26 | Iwaki:Kk | Quantitative pump |
| JPH0357921A (en) * | 1989-07-27 | 1991-03-13 | Miyota Seimitsu Kk | Precisely discharging dispenser |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007180106A (en) * | 2005-12-27 | 2007-07-12 | Daiwa Yuso Kiki Kk | Impregnation injection method and device therefor |
| JP4503527B2 (en) * | 2005-12-27 | 2010-07-14 | 大和輸送機器株式会社 | Impregnating liquid injection device |
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