JP4931636B2 - Pinch valve, equipment - Google Patents

Pinch valve, equipment Download PDF

Info

Publication number
JP4931636B2
JP4931636B2 JP2007044780A JP2007044780A JP4931636B2 JP 4931636 B2 JP4931636 B2 JP 4931636B2 JP 2007044780 A JP2007044780 A JP 2007044780A JP 2007044780 A JP2007044780 A JP 2007044780A JP 4931636 B2 JP4931636 B2 JP 4931636B2
Authority
JP
Japan
Prior art keywords
pressing member
rotating body
pinch valve
tube
pressing
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.)
Expired - Fee Related
Application number
JP2007044780A
Other languages
Japanese (ja)
Other versions
JP2008208879A (en
Inventor
美徳 堂前
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oki Data Infotech Corp
Original Assignee
Oki Data Infotech Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oki Data Infotech Corp filed Critical Oki Data Infotech Corp
Priority to JP2007044780A priority Critical patent/JP4931636B2/en
Publication of JP2008208879A publication Critical patent/JP2008208879A/en
Application granted granted Critical
Publication of JP4931636B2 publication Critical patent/JP4931636B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • F16K7/06—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of a screw-spindle, cam, or other mechanical means
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/003—Housing formed from a plurality of the same valve elements
    • 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
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0081—Special features systems, control, safety measures

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Mechanically-Actuated Valves (AREA)

Description

本発明は、ピンチバルブ及び該ピンチバルブを具備する機器に関する。   The present invention relates to a pinch valve and a device including the pinch valve.

従来、多連ピンチバルブとは特許文献１にあるように、一本のシャフトで複数のカムを駆動させ、カムで直接チューブを押さえるか、またはカムとチューブの間に押さえ板を介してチューブを押さえることでチューブ内の液体の流れを止めていた。   Conventionally, a multiple pinch valve, as disclosed in Patent Document 1, drives a plurality of cams with a single shaft and directly presses the tube with the cam, or holds the tube via a pressing plate between the cam and the tube. The flow of liquid in the tube was stopped by pressing.

従来の技術では、チューブ押圧時カムの円弧部分がチューブまたは押さえ板と直接接触しており、チューブを傷つけ難い形状として、カムは円形を基準にして一部の円弧部分を弓形に切り取った形になっていた。
特開平０９‐３０３５８２号公報 In the conventional technology, when the tube is pressed, the arc portion of the cam is in direct contact with the tube or the holding plate, making the tube difficult to damage. It was.
JP 09-303582 A

従来の技術において、カムでチューブを直接押さえる場合、チューブ押圧部分の接触面積が大きく流路の体積変化も大きいため、チューブ内で押圧部の多くの流体が押圧部前後に移動してしまうし、カムの回転速度が速いほど、チューブ内で押圧部前後の流体の圧力変動も大きくなる。また、カムとチューブが擦れることによりチューブを傷つける原因となり、駆動源であるモータの負荷も大きくなる。   In the conventional technique, when the tube is directly pressed by the cam, the contact area of the tube pressing portion is large and the volume change of the flow path is also large, so that a lot of fluid in the pressing portion moves back and forth within the tube, As the rotational speed of the cam increases, the pressure fluctuation of the fluid before and after the pressing portion in the tube also increases. Further, rubbing between the cam and the tube causes the tube to be damaged, and the load on the motor that is the driving source is also increased.

押さえ板を介してチューブを押さえる場合、カムでチューブを直接押圧するよりも押圧部の接触面積が大きく、上記と同様にチューブ内で押圧部の多くの流体が押圧部前後に移動してしまうし、カムの回転速度が速いほど、チューブ内で押圧部前後の流体の圧力変動も大きくなってしまう。同時に、カムと押さえ板間の摩擦力により駆動源であるモータの負荷も大きくなる。また、押さえ板に一定方向に可動させる為のガイドが無いため、押さえ板とチューブが擦れることによりチューブを傷つける原因となる。   When the tube is pressed through the pressing plate, the contact area of the pressing portion is larger than when the tube is directly pressed by the cam, and much fluid in the pressing portion moves back and forth within the tube in the same manner as described above. As the cam rotational speed increases, the pressure fluctuation of the fluid before and after the pressing portion in the tube also increases. At the same time, the load on the motor, which is the drive source, increases due to the frictional force between the cam and the pressing plate. Further, since there is no guide for moving the pressing plate in a certain direction, the pressing plate and the tube rub against each other, which causes the tube to be damaged.

本発明は、押圧部材がチューブ押圧するときの押圧部前後の流体の圧力変動を小さくし、バルブを駆動させるための必要動力を小さくするピンチバルブを提供する。また、このピンチバルブを具備する機器を提供する。   The present invention provides a pinch valve that reduces the pressure fluctuation of the fluid before and after the pressing portion when the pressing member presses the tube, and reduces the necessary power for driving the valve. Moreover, the apparatus which comprises this pinch valve is provided.

本発明は、回転可能な回転体と、前記回転体の回転に応じて移動する押圧部材と、前記押圧部材を一定方向に往復移動させるためのガイドと、を有し、前記押圧部材の位置に応じて流量を調節することにより、上記課題を解決したものである。上述課題を解決するための本発明の第一の態様は、回転軸によって回転可能な回転体と、前記回転体の回転に応じて可動する押圧部材と、前記押圧部材を一定方向に可動させるためのガイドと、前記押圧部材の可動方向に前記押圧部材と対向する位置に配置された壁部とを有し、前記回転体は、複数の凹部を有するカム基礎部と、前記カム基礎部の凹部に着脱可能な凸部を有するカム駒部とを有し、前記カム基礎部に１つ以上の前記カム駒部を取り付けることで、前記回転体の辺部の一部を形成し、前記回転体は、回転軸からの距離が異なる前記辺部を有し、前記回転体が回転することで前記辺部と前記押圧部材が接する位置が可変し、前記辺部の形状に応じて前記押圧部材を可動させ、前記押圧部材は、端部が先端方向にいくほど断面積が小さくなる形状を有し、前記押圧部材の前記端部と前記壁部によってチューブを押圧し、前記押圧部材の位置に応じて前記チューブ内を流れる液体の流量を調節するピンチバルブにおいて、前記押圧部材と、前記ガイドと、前記壁部とを複数組有し、前記回転体の前記回転軸に対して垂直方向であって夫々が異なる方向に前記押圧部材を配置し、一つの前記回転体によって該回転体に接する複数の前記押圧部材を可動させることを特徴とするピンチバルブである。   The present invention has a rotatable rotating body, a pressing member that moves in accordance with the rotation of the rotating body, and a guide for reciprocating the pressing member in a fixed direction, and is located at the position of the pressing member. The above problem is solved by adjusting the flow rate accordingly. A first aspect of the present invention for solving the above-described problems is a rotating body that can be rotated by a rotating shaft, a pressing member that can move according to the rotation of the rotating body, and a mechanism that moves the pressing member in a certain direction. And a wall portion disposed at a position facing the pressing member in the movable direction of the pressing member, and the rotating body includes a cam base portion having a plurality of concave portions, and a concave portion of the cam base portion. A cam piece part having a detachable convex part, and by attaching one or more cam piece parts to the cam base part, a part of a side part of the rotating body is formed, and the rotating body Has the side portions with different distances from the rotation axis, and the position at which the side portion and the pressing member are in contact with each other changes as the rotating body rotates, and the pressing member is changed according to the shape of the side portion. The cross-sectional area of the pressing member increases as the end portion moves in the tip direction. In the pinch valve, which has a shape that decreases, presses the tube by the end portion and the wall portion of the pressing member, and adjusts the flow rate of the liquid flowing in the tube according to the position of the pressing member, the pressing member And a plurality of sets of the guide and the wall portion, and the pressing members are arranged in directions different from each other in a direction perpendicular to the rotation axis of the rotating body. A pinch valve characterized in that a plurality of the pressing members in contact with a rotating body are moved.

また、本発明の第二の態様は、前記押圧部材は、前記押圧部材の一端に支持軸を有し、前記支持軸を中心に回転可能に支持されたローラ部を有し、前記回転軸と前記支持軸は平行であり、前記回転体の前記辺部と前記ローラ部が接触し、前記回転体の回転に応じて前記押圧部材が可動することを特徴とする第一の態様に記載のピンチバルブである。   Further, according to a second aspect of the present invention, the pressing member has a support shaft at one end of the pressing member, and has a roller portion that is rotatably supported around the support shaft. The pinch according to the first aspect, wherein the support shaft is parallel, the side portion of the rotating body and the roller portion are in contact with each other, and the pressing member is movable according to the rotation of the rotating body. It is a valve.

また、本発明の第三の態様は、前記回転体を複数備え、該複数の前記回転体の回転軸が同一の軸であることを特徴とする第一の態様または第二の態様に記載のピンチバルブである。   According to a third aspect of the present invention, there is provided a plurality of the rotating bodies, wherein the rotation axes of the plurality of rotating bodies are the same axis. It is a pinch valve.

また、本発明の第四の態様は、第一の態様から第三の態様のいずれか一に記載のピンチバルブと、前記ピンチバルブを駆動するモータと、該モータを制御する制御回路と、を備える機器。   According to a fourth aspect of the present invention, there is provided the pinch valve according to any one of the first to third aspects, a motor that drives the pinch valve, and a control circuit that controls the motor. Equipment provided.

押圧部材がチューブ押圧するときの押圧部前後の流体の圧力の変動を小さくし、バルブを駆動させるための必要動力を小さくできる。また、このピンチバルブを具備した機器はバルブを駆動させるための必要動力を小さくできるので小型化できる。   The fluctuation in the pressure of the fluid before and after the pressing portion when the pressing member presses the tube can be reduced, and the necessary power for driving the valve can be reduced. In addition, a device equipped with this pinch valve can be reduced in size because the power required for driving the valve can be reduced.

以下、本発明の実施の形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、本発明であるピンチバルブの参考例の構成例を示す図であり、図２は本発明のピンチバルブの参考例を動作させる制御回路のブロック図である。図１のピンチバルブは４つのピンチバルブを１つの軸で駆動する例を示した図である。筐体１はピンチバルブの筐体である。筐体１は回転体２の軸方向の片面が開口部を有し、回転体２と回転体２に接触して可動する押圧部材３が内蔵されている。回転体２が回転して回転体２の辺部１４が押圧部材３に接触し、前記押圧部３材がガイド４に沿った方向に可動する。 FIG. 1 is a diagram showing a configuration example of a reference example of a pinch valve according to the present invention, and FIG. 2 is a block diagram of a control circuit for operating the reference example of the pinch valve of the present invention. The pinch valve of FIG. 1 is a diagram showing an example in which four pinch valves are driven by one shaft. The case 1 is a case of a pinch valve. The casing 1 has an opening on one side of the rotating body 2 in the axial direction, and includes a rotating member 2 and a pressing member 3 that is movable in contact with the rotating body 2. The rotating body 2 rotates and the side portion 14 of the rotating body 2 comes into contact with the pressing member 3, and the pressing portion 3 material moves in a direction along the guide 4.

押圧部材３とガイド４に対して垂直に配置された壁部５とそれに沿った溝が筐体１に設けられている。この壁部５に沿った溝にチューブ６を配置する。押圧部材３の位置によって、押圧部材３と壁部５の距離がかわり、この距離に応じて、押圧部材３と壁部５の間に挟まれたチューブ６の変形量が変わる。チューブ６の変形量を制御して変えることで、チューブ６内を流れる流体の流量調節を行うことができる。   The casing 1 is provided with a wall portion 5 arranged perpendicular to the pressing member 3 and the guide 4 and a groove along the wall portion 5. The tube 6 is disposed in the groove along the wall portion 5. The distance between the pressing member 3 and the wall portion 5 changes depending on the position of the pressing member 3, and the deformation amount of the tube 6 sandwiched between the pressing member 3 and the wall portion 5 changes according to this distance. By controlling and changing the deformation amount of the tube 6, the flow rate of the fluid flowing in the tube 6 can be adjusted.

この例では、４個のピンチバルブが各ピンチバルブを同方向にした状態で連結している。４個のピンチバルブの回転体２は同位置に回転軸７を有し、回転体２はモータ８の動力を伝達する動力軸９と同一軸上に固定されている。制御回路２４はピンチバルブを動作させるためにピンチバルブとモータを制御する制御回路２４である。モータ８はステッピングモータを使用し、このモータ８は駆動ドライバ１０によって駆動される。   In this example, four pinch valves are connected with each pinch valve in the same direction. The four pinch valve rotating bodies 2 have a rotating shaft 7 at the same position, and the rotating body 2 is fixed on the same shaft as the power shaft 9 for transmitting the power of the motor 8. The control circuit 24 is a control circuit 24 that controls the pinch valve and the motor in order to operate the pinch valve. The motor 8 uses a stepping motor, and the motor 8 is driven by a drive driver 10.

回転体２の回転を検出する為に、回転体２の表面の変化を検出する非接触のセンサ１１を取り付けている。センサ１１と駆動ドライバ１０はＣＰＵ１２と接続されており、ＣＰＵ１２はメモリ１３と接続している。ＣＰＵ１２はメモリ１３に記憶されているプログラムに基づき全体の制御をおこなう。メモリ１３はＲＯＭ、ＲＡＭで構成され、ＣＰＵ１２のプログラムの記憶、演算をおこなう際のワークエリア、初期設定値などの設定値などの記憶をおこなう。   In order to detect the rotation of the rotating body 2, a non-contact sensor 11 that detects a change in the surface of the rotating body 2 is attached. The sensor 11 and the drive driver 10 are connected to the CPU 12, and the CPU 12 is connected to the memory 13. The CPU 12 performs overall control based on a program stored in the memory 13. The memory 13 is composed of a ROM and a RAM, and stores a program of the CPU 12, a work area when performing calculation, a set value such as an initial set value, and the like.

回転体２の表面に基準位置マークを配置する。センサ１１によってこの基準位置マークを検出したときの回転体２の位置を基準位置として、回転体２の回転の制御をおこなう。モータ８はステッピングモータなので、駆動パルス数をカウントしてメモリ１３に都度記憶することで、メモリ１３の記憶しているカウント数を演算することで回転体２が何度回転したか分る。また、好ましくは、駆動パルス数をカウントし、１回転するとリセットされるカウンタを設けることである、これにより駆動パルス数をカウントすることで回転角度を容易に知ることができる。   A reference position mark is arranged on the surface of the rotating body 2. The rotation of the rotating body 2 is controlled using the position of the rotating body 2 when the reference position mark is detected by the sensor 11 as a reference position. Since the motor 8 is a stepping motor, the number of drive pulses is counted and stored in the memory 13, so that the number of rotations of the rotating body 2 can be determined by calculating the count number stored in the memory 13. Preferably, the number of drive pulses is counted, and a counter is provided that is reset after one rotation. Thus, the rotation angle can be easily known by counting the number of drive pulses.

また、回転体２を目的の角度に回転させたいときは、メモリ１３に記憶されている現在の位置をカウント数から演算し、目的の角度にする為に駆動すべきパルスス数を演算し、その演算の結果のパルス数分モータ８が回転するようにＣＰＵ１２がモータ駆動ドライバ１０を制御して、モータ８を駆動することで回転体２の回転を制御し、回転体２を回転させる。回転体２が回転することによって、その辺部１４が押圧部材３を可動させ、押圧部材３によってチューブ６を押圧することで、チューブ６内の流量を可変する。   When it is desired to rotate the rotator 2 to a target angle, the current position stored in the memory 13 is calculated from the count number, and the number of pulses to be driven to obtain the target angle is calculated. The CPU 12 controls the motor drive driver 10 so that the motor 8 is rotated by the number of pulses as a result of the calculation, and the rotation of the rotating body 2 is controlled by driving the motor 8 to rotate the rotating body 2. When the rotating body 2 rotates, the side portion 14 moves the pressing member 3, and the pressing member 3 presses the tube 6, thereby changing the flow rate in the tube 6.

次に、ピンチバルブの動作を説明する。図３はピンチバルブの参考例の駆動方法例を示すフローチャートである。図４はピンチバルブの参考例の動作例を示す図である。回転体２は回転軸７からの距離が一定ではない辺部１４を有しており、回転体２が回転することで辺部１４が押圧部材３と接し、辺部１４の形状に応じて押圧部材３が移動する。辺部１４上で回転軸７から一番離れた位置と押圧部材３が接した場合に、押圧部材３と壁部５によってチューブ６をはさんで変形させ、流路を完全にふさぐ。また、回転体２を変えて回転軸７から辺部１４までの距離を変えることで、流路断面積を可変することも可能である。辺部１４は押圧部材３を押圧するようなカム形状となっている。回転体２の辺部１４を任意の距離に設定することで、チューブ６内の流体の流量調節を行うことができる。

例として、回転体２を９０度回転させてチューブ６を押圧し、バルブを閉状態にする動作を説明する。回転体２のカム形状で凸部１５の中央部が、押圧部材３の可動方向に対して時計回りに９０度回転させた位置をホームポジションとする。ホームポジションマーク２５はセンサ１１によってホームポジションを検出する為のマークである。回転体２がホームポジションにあることは回転体２のホームポジションマーク２５をセンサ１１によって検出した時に、センサ１１がＣＰＵ１２へ信号を出力することでＣＰＵ１２が判断する。

まず、ホームポジションを探す為にモータ８を駆動する。１パルスごとに駆動する。（ステップ１）。 Next, the operation of the pinch valve will be described. FIG. 3 is a flowchart showing an example of a driving method of a reference example of the pinch valve. FIG. 4 is a diagram showing an operation example of a reference example of the pinch valve. The rotating body 2 has a side portion 14 whose distance from the rotation shaft 7 is not constant, and the rotating body 2 rotates so that the side portion 14 comes into contact with the pressing member 3 and is pressed according to the shape of the side portion 14. The member 3 moves. When the pressing member 3 is in contact with the position farthest from the rotation shaft 7 on the side portion 14, the tube 6 is deformed by the pressing member 3 and the wall portion 5 to completely block the flow path. It is also possible to change the flow path cross-sectional area by changing the rotating body 2 and changing the distance from the rotating shaft 7 to the side portion 14. The side portion 14 has a cam shape that presses the pressing member 3. By setting the side portion 14 of the rotating body 2 to an arbitrary distance, the flow rate of the fluid in the tube 6 can be adjusted.

As an example, the operation of rotating the rotating body 2 90 degrees to press the tube 6 and closing the valve will be described. A position where the central portion of the convex portion 15 in the cam shape of the rotating body 2 is rotated 90 degrees clockwise with respect to the movable direction of the pressing member 3 is defined as a home position. The home position mark 25 is a mark for detecting the home position by the sensor 11. The CPU 12 determines that the rotating body 2 is in the home position when the sensor 11 outputs a signal to the CPU 12 when the sensor 11 detects the home position mark 25 of the rotating body 2.

First, the motor 8 is driven to find the home position. Drive every pulse. (Step 1).

そして、そのときのセンサ１１の検出状態を判断し、センサ１１によってホームポジションマーク２５が検出するまで１パルスごとにモータ８を駆動する。ここで、センサ１１がホームポジションを検出するとステップ３へ移行する。（ステップ２）。   Then, the detection state of the sensor 11 at that time is determined, and the motor 8 is driven every pulse until the home position mark 25 is detected by the sensor 11. Here, when the sensor 11 detects the home position, the process proceeds to step 3. (Step 2).

ここで、例としてあげた回転体２はモータは、１パルス駆動することで０．１度回転するので、９０度回転させるには９００パルスの駆動させるために、ＣＰＵ１２はモータ駆動ドライバ１０へ９００パルス駆動する信号を送信する。モータ８はモータ駆動ドライバ１０からの信号により、９００パルス駆動し、回転体２は９０度反時計回りに回転する。（ステップ３）。   Here, the rotating body 2 given as an example rotates the motor by 0.1 degree by being driven by one pulse, so that the CPU 12 sends 900 pulses to the motor driving driver 10 in order to drive it by 900 pulses. Transmits a signal for pulse driving. The motor 8 is driven by 900 pulses in response to a signal from the motor drive driver 10, and the rotating body 2 rotates 90 degrees counterclockwise. (Step 3).

モータ駆動ドライバ１０がモータ８を９０度回転させると、モータ８と軸を同じくして回転する回転体２も９０度回転することにより、回転体の凸部１５の位置も回転軸７を中心に９０度回転し、押圧部材３のローラ１６に接触し押圧部材３をガイド４に沿って一定方向に移動させる。押圧部材３はローラ１６とは反対側の押圧部１７でチューブ６を押圧し、流体の流れを遮断する。   When the motor driver 10 rotates the motor 8 by 90 degrees, the rotating body 2 that rotates in the same axis as the motor 8 also rotates by 90 degrees, so that the position of the convex portion 15 of the rotating body is also centered on the rotating shaft 7. It rotates 90 degrees, contacts the roller 16 of the pressing member 3, and moves the pressing member 3 along the guide 4 in a certain direction. The pressing member 3 presses the tube 6 with the pressing portion 17 on the side opposite to the roller 16 to block the fluid flow.

回転体２がホームポジションの状態では、ローラ１６は、回転体２の辺部１４の回転軸７に近い状態の辺部で接触している。そのため、押圧突起１７はチューブ６の弾性により押し戻され、チューブ６は変形しなし。また、別の態様とし、押圧部材３がチューブ６を押圧しないときにチューブ６を変形させないように回転軸７方向に付勢するバネなどの付勢手段を設けることもできる。   When the rotating body 2 is in the home position, the roller 16 is in contact with the side portion of the side portion 14 of the rotating body 2 that is close to the rotation shaft 7. Therefore, the pressing protrusion 17 is pushed back by the elasticity of the tube 6, and the tube 6 is not deformed. Further, as another aspect, it is possible to provide a biasing means such as a spring that biases the tube 6 in the direction of the rotation shaft 7 so as not to deform the tube 6 when the pressing member 3 does not press the tube 6.

ここで、押圧部材３の形状例について図５を参照して説明する。押圧部材３の押圧部１７である端部は、チューブ６押圧時の反力を小さくするためにチューブ６側の端部が先端方向にいくほど断面積が小さくなる形状である。また、その先端はチューブ６を傷つけないように角を丸めた形状をしている。また、押圧部材３のガイド４に接する面と隣り合った２面が押圧部１７と逆方向に延長しており、延長部分に軸穴１８があり、軸を通してローラ１６を保持している。ローラ１６は円柱状で円周が回転体２の回転に従って、回転体２の辺部１４に接触し、ころがり、回転する構造となっている。ローラ１６により、押圧部材３が回転体２との直接接触で傷つくことを防ぎ、引っかかることがないので、且つガイド４により滑らかに一定方向への可動が可能となる。   Here, an example of the shape of the pressing member 3 will be described with reference to FIG. The end portion which is the pressing portion 17 of the pressing member 3 has a shape in which the cross-sectional area becomes smaller as the end portion on the tube 6 side goes in the distal direction in order to reduce the reaction force when the tube 6 is pressed. Further, the tip has a rounded shape so as not to damage the tube 6. Further, two surfaces adjacent to the surface of the pressing member 3 that are in contact with the guide 4 extend in the opposite direction to the pressing portion 17, and there is a shaft hole 18 in the extended portion, and the roller 16 is held through the shaft. The roller 16 has a cylindrical shape and the circumference contacts the side portion 14 of the rotating body 2 as the rotating body 2 rotates, and is rolled and rotated. The roller 16 prevents the pressing member 3 from being damaged by direct contact with the rotating body 2 and does not get caught, and the guide 4 can smoothly move in a certain direction.

図６は２方向にチューブがある本発明のピンチバルブの参考例を示す図である。回転体２の回転軸７を中心として回転軸７に垂直な面上の複数方向に押圧部材３とガイド４、チューブ６、壁部５を配置することができる。ここでは、回転軸７を通る直線上に、回転軸７を中心にそれぞれ逆の方向である２方向に押圧部材３を設けた例である。回転体２が回転することにより、複数の押圧部材３が回転体２と接触し、回転体２の回転軸７に垂直方向に配置された辺部と各押圧部材３が接触することで、ガイドに沿って押圧部材３を可動させて押圧部材３の押圧部１７と壁部５でチューブ６を押圧する。この方法は、２方向に限らず、複数方向で可能なため、ひとつのピンチバルブで複数のチューブの開閉を行うことが可能となる。 FIG. 6 is a view showing a reference example of the pinch valve of the present invention having a tube in two directions. The pressing member 3, the guide 4, the tube 6, and the wall portion 5 can be arranged in a plurality of directions on a plane perpendicular to the rotating shaft 7 around the rotating shaft 7 of the rotating body 2. In this example, the pressing members 3 are provided in two directions, which are opposite to each other about the rotation shaft 7, on a straight line passing through the rotation shaft 7. By rotating the rotating body 2, the plurality of pressing members 3 come into contact with the rotating body 2, and the side portions arranged in the direction perpendicular to the rotation shaft 7 of the rotating body 2 and the pressing members 3 come into contact with each other. Then, the pressing member 3 is moved along and the tube 6 is pressed by the pressing portion 17 and the wall portion 5 of the pressing member 3. Since this method is possible not only in two directions but also in a plurality of directions, a plurality of tubes can be opened and closed with one pinch valve.

次に、その他の回転体２による押圧部材３の可動方法について説明する。図７は本発明の実施形態の模式図である。回転体２をカム基礎部１９とカム駒部２０の二つに分けた構造を有する。カム基礎部１９は複数の凹部を有し、凹部は表面に向けて開口部が狭くなる形状を有し、カム駒部２０はカム基礎部１９の凹部にはまる形状の凸部を有しており、はめ合せた際のガタや抜けを防止する形状となっている。カム基礎部１９の任意の方向にカム駒部２０を取り付けることで、任意の位置で押圧部材３と接触することが可能となる。この方法も回転軸７に対して垂直な面上で複数方向に押圧部材３、ガイド４、チューブ６、壁部５を配置して使用可能である。 Next, the moving method of the pressing member 3 by the other rotary body 2 is demonstrated. Figure 7 is a schematic diagram of the implementation of the invention. The rotating body 2 is divided into two parts, that is, a cam base portion 19 and a cam piece portion 20. The cam base portion 19 has a plurality of concave portions, the concave portion has a shape in which the opening narrows toward the surface, and the cam piece portion 20 has a convex portion that fits into the concave portion of the cam base portion 19. , It has a shape that prevents backlash and omission when fitted. By attaching the cam piece portion 20 in an arbitrary direction of the cam base portion 19, it is possible to contact the pressing member 3 at an arbitrary position. This method can also be used by disposing the pressing member 3, the guide 4, the tube 6, and the wall portion 5 in a plurality of directions on a plane perpendicular to the rotating shaft 7.

次に図８は本発明のピンチバルブの参考例の模式図である。回転体２による押圧部材３の可動方法を説明する。回転体２に取り付けた回転可能な伝達軸２１を伝達材２２の端部に取り付け、押圧部材３に取り付けた支持軸２３を伝達材２２の他端に取り付けることで連結し、回転体２の回転が伝達材２２を介して押圧部材３をガイド４に沿って可動させる方法である。この方法では、モータ８の動力軸９を回転体２の回転軸とせず、動力軸９を回転体２外周面に接触させることで回転させる。この方法は、伝達材２２が動力軸９に接触する範囲外の回転軸７に対して垂直な面上で複数方向に、押圧部材３、ガイド４、チューブ６、壁部５を配置して使用できる。 Next, FIG. 8 is a schematic view of a reference example of the pinch valve of the present invention. A method for moving the pressing member 3 by the rotating body 2 will be described. A rotatable transmission shaft 21 attached to the rotator 2 is attached to the end of the transmission member 22, and a support shaft 23 attached to the pressing member 3 is attached to the other end of the transmission member 22 to be connected to rotate the rotator 2. Is a method of moving the pressing member 3 along the guide 4 via the transmission member 22. In this method, the power shaft 9 of the motor 8 is not used as the rotating shaft of the rotating body 2 but is rotated by bringing the power shaft 9 into contact with the outer peripheral surface of the rotating body 2. In this method, the pressing member 3, the guide 4, the tube 6, and the wall portion 5 are arranged and used in a plurality of directions on a surface perpendicular to the rotating shaft 7 outside the range where the transmission material 22 contacts the power shaft 9. it can.

本発明であるピンチバルブの参考例の構成例を示す図である。It is a figure which shows the structural example of the reference example of the pinch valve which is this invention. 本発明のピンチバルブの参考例を動作させる制御回路のブロック図である。It is a block diagram of the control circuit which operates the reference example of the pinch valve of this invention. ピンチバルブの参考例の駆動方法例を示すフローチャートである。It is a flowchart which shows the example of a drive method of the reference example of a pinch valve. ピンチバルブの参考例の動作例を示す図である。It is a figure which shows the operation example of the reference example of a pinch valve. ピンチバルブの参考例の押圧部材の構造図である。It is a block diagram of the press member of the reference example of a pinch valve. ２方向にチューブがある本発明のピンチバルブの参考例を示す図である。It is a figure which shows the reference example of the pinch valve of this invention which has a tube in 2 directions. 本発明の実施形態の模式図である。It is a schematic diagram of the implementation of the invention. 本発明のピンチバルブの参考例の模式図である。It is a schematic diagram of the reference example of the pinch valve of this invention.

１ 筐体
２ 回転体
３ 押圧部材
４ ガイド（筐体）
５ 壁部（筐体）
６ チューブ
７ 回転軸（回転体）
８ モータ
９ 動力軸
１０ モータ駆動用ドライバ
１１ センサ
１２ ＣＰＵ
１３ メモリ
１４ 辺部（回転体）
１５ 凸部（回転体）
１６ ローラ（押圧部材）
１７ 押圧部
１８ 軸穴
１９ カム基礎部
２０ カム駒部
２１ 伝達軸
２２ 伝達材
２３ 支持軸
２４ 制御回路
２５ ホームポジションマーク DESCRIPTION OF SYMBOLS 1 Case 2 Rotating body 3 Pressing member 4 Guide (housing)
5 Wall (housing)
6 Tube 7 Rotating shaft (Rotating body)
8 Motor 9 Power shaft 10 Driver for motor drive 11 Sensor 12 CPU
13 Memory 14 Side (Rotating body)
15 Convex part (rotating body)
16 Roller (Pressing member)
17 Pressing portion 18 Shaft hole 19 Cam base portion 20 Cam piece portion 21 Transmission shaft 22 Transmission material 23 Support shaft 24 Control circuit 25 Home position mark

Claims (4)

回転軸によって回転可能な回転体と、前記回転体の回転に応じて可動する押圧部材と、前記押圧部材を一定方向に可動させるためのガイドと、前記押圧部材の可動方向に前記押圧部材と対向する位置に配置された壁部とを有し、前記回転体は、複数の凹部を有するカム基礎部と、前記カム基礎部の凹部に着脱可能な凸部を有するカム駒部とを有し、前記カム基礎部に１つ以上の前記カム駒部を取り付けることで、前記回転体の辺部の一部を形成し、前記回転体は、回転軸からの距離が異なる前記辺部を有し、前記回転体が回転することで前記辺部と前記押圧部材が接する位置が可変し、前記辺部の形状に応じて前記押圧部材を可動させ、前記押圧部材は、端部が先端方向にいくほど断面積が小さくなる形状を有し、前記押圧部材の前記端部と前記壁部によってチューブを押圧し、前記押圧部材の位置に応じて前記チューブ内を流れる液体の流量を調節するピンチバルブにおいて、前記押圧部材と、前記ガイドと、前記壁部とを複数組有し、前記回転体の前記回転軸に対して垂直方向であって夫々が異なる方向に前記押圧部材を配置し、一つの前記回転体によって該回転体に接する複数の前記押圧部材を可動させることを特徴とするピンチバルブ。 A rotating body rotatable by a rotating shaft, a pressing member movable according to the rotation of the rotating body, a guide for moving the pressing member in a fixed direction, and facing the pressing member in a moving direction of the pressing member And the rotating body has a cam base portion having a plurality of concave portions, and a cam piece portion having a convex portion detachable from the concave portions of the cam base portion, By attaching one or more cam pieces to the cam base, a part of the side of the rotating body is formed, and the rotating body has the side having a different distance from the rotation axis, As the rotating body rotates, the position where the side and the pressing member come into contact with each other is changed, and the pressing member is moved according to the shape of the side. It has a shape in which the cross-sectional area decreases, and the end portion of the pressing member Pressing the tube by Kikabe unit, in a pinch valve for adjusting the flow rate of the liquid flowing in said tube in response to the position of the pressing member, said pressing member, said guide and, with a a plurality of sets the wall The pressing member is arranged in a direction perpendicular to the rotation axis of the rotating body and different from each other, and the plurality of pressing members in contact with the rotating body are moved by one rotating body. And pinch valve. 前記押圧部材は、前記押圧部材の一端に支持軸を有し、前記支持軸を中心に回転可能に支持されたローラ部を有し、前記回転軸と前記支持軸は平行であり、前記回転体の前記辺部と前記ローラ部が接触し、前記回転体の回転に応じて前記押圧部材が可動することを特徴とする請求項１に記載のピンチバルブ。  The pressing member has a support shaft at one end of the pressing member, and has a roller portion that is rotatably supported around the support shaft. The rotating shaft and the support shaft are parallel to each other, and the rotating body The pinch valve according to claim 1, wherein the side portion and the roller portion are in contact with each other, and the pressing member is moved in accordance with the rotation of the rotating body. 前記回転体を複数備え、該複数の前記回転体の回転軸が同一の軸であることを特徴とする請求項１または請求項２に記載のピンチバルブ。  The pinch valve according to claim 1 or 2, wherein a plurality of the rotating bodies are provided, and the rotation axes of the plurality of rotating bodies are the same axis. 請求項１から請求項３のいずれか１項に記載のピンチバルブと、前記ピンチバルブを駆動するモータと、該モータを制御する制御回路と、を備える機器。  The apparatus provided with the pinch valve of any one of Claims 1-3, the motor which drives the said pinch valve, and the control circuit which controls this motor.
JP2007044780A 2007-02-24 2007-02-24 Pinch valve, equipment Expired - Fee Related JP4931636B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007044780A JP4931636B2 (en) 2007-02-24 2007-02-24 Pinch valve, equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007044780A JP4931636B2 (en) 2007-02-24 2007-02-24 Pinch valve, equipment

Publications (2)

Publication Number Publication Date
JP2008208879A JP2008208879A (en) 2008-09-11
JP4931636B2 true JP4931636B2 (en) 2012-05-16

Family

ID=39785353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007044780A Expired - Fee Related JP4931636B2 (en) 2007-02-24 2007-02-24 Pinch valve, equipment

Country Status (1)

Country Link
JP (1) JP4931636B2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011220451A (en) * 2010-04-09 2011-11-04 Saginomiya Seisakusho Inc Pulse driving device of motor-operated valve and control system of motor-operated valve having the same
JP5904639B2 (en) 2012-04-27 2016-04-13 国立大学法人東京工業大学 3 port valve
US10407657B2 (en) 2012-09-05 2019-09-10 Hitachi, Ltd. Valve mechanism, cell cultivation apparatus using same, and cell cultivation method
WO2016174724A1 (en) * 2015-04-28 2016-11-03 株式会社日立製作所 Flow channel unit and culturing device
JP6854767B2 (en) * 2015-09-14 2021-04-07 ローツェライフサイエンス株式会社 Switching valve and suction / discharge device equipped with this
JPWO2017090649A1 (en) * 2015-11-24 2018-09-06 国立大学法人東京工業大学 Pinch valve and manifold with the same
CN109277802B (en) * 2017-10-13 2020-09-18 平高集团有限公司 Valve string press-fitting device and press-fitting method
US11896798B2 (en) * 2021-08-18 2024-02-13 Alcor Scientific, Inc. Enteral feeding pump systems, valve assemblies therefor and fluid flow control methods for same
US11992464B2 (en) 2021-08-18 2024-05-28 Alcor Scientific Llc Enteral feeding pump systems, valve assemblies therefor and fluid flow control methods for same
CN114178852B (en) * 2022-02-16 2022-05-13 常州恒立气动科技有限公司 Pressing tool and pressing method
USD1032520S1 (en) 2023-05-30 2024-06-25 Alcor Scientific Llc Twin port adapter

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2412397A (en) * 1943-12-31 1946-12-10 Lyndus E Harper Flexible tube pump
JPS52149381A (en) * 1976-06-07 1977-12-12 Matsushita Electric Works Ltd Periodic timers of shortttime operating type
JPS6017062B2 (en) * 1979-09-18 1985-04-30 海瀬電気株式会社 tester
JPS6287603A (en) * 1985-10-12 1987-04-22 Odai Tekko Kk Tappet valve mechanism with roller
GB2187535B (en) * 1986-03-05 1989-11-15 Heatrae Sadia Heating Ltd Fluid flow control valve
JPS6314587A (en) * 1986-07-07 1988-01-21 Asahi Hoso Kk Television transmission system
JPS6389468A (en) * 1986-10-03 1988-04-20 トヨタ自動車株式会社 Formation of film for hydrostatic pressure onto ceramic formed body
US4852551A (en) * 1988-04-22 1989-08-01 Opielab, Inc. Contamination-free endoscope valves for use with a disposable endoscope sheath
JPH09303582A (en) * 1996-05-10 1997-11-25 Mitsubishi Heavy Ind Ltd Multipe small type pinch valve
GR1002892B (en) * 1997-02-17 1998-04-10 Micrel Linear peristaltic pump
DE10114330B4 (en) * 2001-03-23 2005-03-10 Ferton Holding Sa Valve arrangement in a midizinischen device
GB2410538B (en) * 2004-01-27 2006-06-28 Carole Ann Payne Half turn lever operated pinch valve

Also Published As

Publication number Publication date
JP2008208879A (en) 2008-09-11

Similar Documents

Publication Publication Date Title
JP4931636B2 (en) Pinch valve, equipment
RU2445539C2 (en) Device to detect drive position
US10059017B2 (en) Tube cutting apparatus
JPWO2013047185A1 (en) Infusion pump
JP6061696B2 (en) Valve actuator, valve device, and valve actuator control method
CN211145772U (en) Pipeline walking robot and pipeline detection system
KR20070042945A (en) The pipe bender without mandrel
KR20180088409A (en) Film forming device
JP6640510B2 (en) Flow control valve
CN106911264B (en) Small-sized list piezoelectric stack drive-type bidirectional rotation inertia actuator and actuation method
JP2015157332A (en) Robot device
JP2012082730A (en) Liquid feeding device
KR20140040555A (en) A tester for friction and abrasion
JP2012524209A (en) Device for detecting adjusted stroke volume
JP4026130B2 (en) Work positioning device
CN110871450B (en) Dexterous finger mechanism, manipulator and control method
CN211042090U (en) Rotating shaft positioning device
US3946985A (en) Valve device for gases
JP2007142351A (en) Element pressure roller mechanism apparatus
JP4221258B2 (en) Control valve
JP5561475B2 (en) Double acting mechanism
JP2000218561A (en) Torque ensured tightening device
JP2008157342A (en) Flow control device
KR20050066408A (en) Tension adjusting apparatus for a driving belt
JP2009061541A (en) Overload detecting mechanism and industrial robot equipped with the same

Legal Events

Date Code Title Description
RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20091105

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20091113

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20091118

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20091118

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110527

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110607

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110725

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20111206

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120116

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120207

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120214

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 4931636

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150224

Year of fee payment: 3

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: R3D04

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees