JP2013177817A - Fluid charging method for performing operation of adjusting amount of fluid charged into open container or sealed container by controlling discharging amount and sucking amount of fluid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid charging method for performing, for example, a fixed amount charging or a surface level restricted charging of fluid into an open container or a sealed container, preventing dripping of the fluid, and enabling charging operation of fluid with viscosity, without using a measuring instrument of a sensor equipment such as a load cell.SOLUTION: A total of two pumps including a discharge pump 8 and a suction pump 9, and a multiplex charging pipe 11 comprising an inner pipe and an outer pipe are used to make connection piping with a tube or a pipe and move the fluid. Alternatively, the total of two pumps including the discharge pump 8 and the suction pump 9, and two charging pipes 10 separated from each other are used to make connection piping with the tube or the pipe and move the fluid. A fluid charging method is provided in which, with the configuration comprising the respective pumps and the charging pipes, one of the pipes is used for discharging fluid, and the other pipe is used for sucking fluid, and by controlling the discharging amount and sucking amount of the fluid, the charging amount can be adjusted when the fluid is moved to an open container or a sealed container.

Description

  The present invention relates to a method of filling a liquid or gas fluid into an open container or a closed container.

  Conventional filling and dispensing of containers and the like is a volumetric filling method using a piston operation that operates on a syringe. A filling method that uses a load cell or sensors for detecting the amount of liquid when a quantitative accuracy is required for feeding a fluid in one direction in the tubing pump. Using fluid storage tanks, such as filling pipes (filling nozzles) that require a mechanical mechanism, and using vacuum pumps, blowers, and other equipment to bring the inside into a sealed, vacuum, and pressurized state. A method of creating a man-made environment and fluid filling with a siphon effect is common.

JP-A-2005-147069 JP-A-60-230582

According to the method as described above, in the volumetric quantitative filling method by the piston operation that runs on the syringe, since the fluid is repeatedly sucked into and discharged from the syringe, continuous liquid feeding cannot be performed, and the liquid feeding amount is the content of the syringe. Product
In addition, fluid feeding and filling in one direction, and filling pipes (filling nozzles) that require a mechanical mechanism, such as load cells and sensors for detecting the amount of liquid, or vacuum when quantitative accuracy is required, In order to create a man-made environment such as normal and pressurized conditions, it is necessary to use equipment attached to equipment other than pumps that send fluid, such as vacuum pumps and blowers.

Normally, the volumetric filling method using the reciprocating movement of the piston that goes into the syringe does not allow continuous liquid feeding, and the liquid feeding volume is the volume inside the syringe, and there are also problems such as wear of piston packings and friction between parts. The
In addition, fluid feeding and filling in one direction, and filling pipes (filling nozzles) that require a mechanical mechanism, such as load cells and sensors for detecting the amount of liquid, or vacuum when quantitative accuracy is required, In order to create an artificial environment such as normal and pressurized conditions, devices such as vacuum pumps, blowers, and other pumps that send fluids are used, so complicated equipment needs to be adjusted and wetted parts Since this is a complicated mechanism, problems such as hygiene problems, equipment costs increase, lack of simplicity, etc.Furthermore, since the container cannot be filled unless it is sealed at the time of filling, filling such as the need for container strength is required. Depending on the type of container to be used and the viscosity of the fluid to be filled, problems such as sensor limitations may arise.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-described problems, and to control the fluid discharge amount and the suction amount to perform the operation of opening the fluid or adjusting the filling amount to the sealed container. I will provide a.

In order to achieve the above object, the present invention discharges and sucks fluid by forward drive reverse drive (forward and reverse rotation) other than one or two or more tube pumps or tube pumps capable of sucking and discharging fluid. Use a pump whose operation can be switched or a pump described in the following supplementary explanation that can discharge and suck in fluid simultaneously.
The fluid storage tank (Fig. 1 7.) and the fluid discharge pump (Fig. 1 8.) and the suction pump (Fig. 1 9.) are connected by a tube / pipe (Fig. 1 10.) to discharge the fluid. Multiple filling pipes (Fig. 11), (Fig. 2) consisting of inner and outer pipes, suction pumps, and inner and outer pipes, or two separate filling pipes (Fig. 3), tube and pipe ( Figure 1 9.) Connected piping is used, and each pump / filling pipe is used for discharging one pipe and for sucking one pipe.
The fluid in the storage tank (Fig. 1 7.) is stored from the discharge pump (Fig. 1 8.) through the discharge filling tube into the container, and the fluid in the container is stored from the discharge filling tube through the suction pump (Fig. 1 9.). Return to the tank (Fig. 17).
The operation of circulating the above-mentioned liquid and 1 operation of each pipe in the container (the filling pipe discharge suction inlet is moved up and down between the bottom of the container and the opening of the container) (FIG. 4).
2 After operation, the filling tube discharge suction port is temporarily stopped at any position for filling (FIG. 5). 3 Filling tube discharge suction port is set at any position for filling (FIG. 6). 4 containers Use the operation to adjust the position of the filling pipe discharge suction port in the inside (Fig. 7) to perform filling work by liquid level regulation, liquid feeding work that requires forward and reverse directions that require suction and discharge, In addition, it is possible to perform the operation of filling and discharging the fluid into the container and the liquid level control when the liquid is fed to the tank.
Supplementary explanation of pump used Symmetrically, a rotor with one or more freely rotating cylindrical rollers arranged around the rotation axis built in the center of the rotor and an arc-shaped indentation facing the outer periphery of the rotor By rotating the rotating shaft using a motor with a combination of one rotor and two stators, the rotor rotates in the same direction as the rotating shaft, but the roller rotates in the opposite direction. Due to the rotating structure, a flexible tube interposed between the stator and the rotor is pressed against the tube, pressed against the tube, pressed, and rotated, so that the fluid in the tube is carried and discharged. The
Similarly, a flexible tube is also interposed between the other symmetrically arranged stator and rotor, and the roller provided on the periphery of the rotor is pressed against and pressed against the tube as the rotor rotates. By doing so, the fluid in the tube is carried and discharged.
In this way, one tube can be sucked and discharged, and the other tube can be discharged and sucked so that fluids can be conveyed simultaneously in different directions.

In this way, liquid can be circulated and each filling tube can be operated inside the container, so that it is possible to perform quantitative filling and liquid level regulation filling into an open or closed container.
In addition, to shorten the filling time, the discharge pump is used as a discharge pump and the suction pump is reversed to close to the target filling amount in an open container or a closed container. When the filling amount is approached, the suction pump is rotated forward and used as a suction pump, and the amount of liquid can be controlled in conjunction with each filling operation to shorten the filling time. At the end of filling the open container or closed container, the pump on the discharge filling pipe side is reversed to suck the fluid in the discharge filling pipe port and the tip, and the fluid flows into the discharge filling pipe port and the tip. It is possible to prevent dripping from the filling tube after filling.
This type of operation is effective in reducing the time for running out of fluid even when fluid is filled, such as when the flow in the pipe is slow, like pressure fluid, and pressure is applied and it takes time for the fluid to flow after stopping the pump. Viscous fluid can be filled into a container or sealed container.

Constitutional diagram of container and pump connection method of the present invention Sectional view of the multiple filling tube of the present invention Front sectional view and plan sectional view of the separated filling tube of the present invention Explanatory drawing of a series of filling operations of the present invention Explanatory drawing of a series of filling operations of the present invention Explanatory drawing of a series of filling operations of the present invention Explanatory drawing of a series of filling operations of the present invention The perspective view of the pump head which shows embodiment Perspective view of the shape of the rotor used Perspective view of stator shape used Cross section of pump head used Flowing operation diagram

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

In Fig. 1, the fluid storage tank (Fig. 1 7.) and the fluid discharge pump (Fig. 1 8.) and the suction pump (Fig. 1 9.) are connected by a tube and pipe (Fig. 1 10.). , A fluid discharge pump, a suction pump and multiple filling pipes (Fig. 11), consisting of inner and outer pipes (Fig. 2), or two separate filling pipes (Fig. 3), Connecting pipes with tubes and pipes (Fig. 1 9.), each pump / filling pipe is used for discharging and 1 pipe is used for suction.
The fluid in the storage tank (Fig. 1 7.) is stored from the discharge pump (Fig. 1 8.) through the discharge filling tube into the container, and the fluid in the container is stored from the discharge filling tube through the suction pump (Fig. 1 9.). Return to the tank (Fig. 17).

In FIG. 4, the operation of circulating the above liquid and the operation of each pipe in the container (the filling pipe discharge suction port moves up and down between the container bottom and the container opening) are shown in order. .
Fig. 5 shows that the filling pipe discharge suction port can be temporarily stopped at any position after operation.
Fig. 6 shows that filling can be done by setting the filling pipe discharge suction port at an arbitrary position to fill the container with liquid.
Fig. 7 shows how to fill the container with liquid by adjusting the position of the filling pipe discharge suction port in the container.

Fig. 8 shows the pump head used. Reference numeral 4 denotes a rotor, and the rotor 4 is rotated by rotating the rotating shaft 6 using the motor 5. When the rotary shaft 6 is rotated, the rotor 4 rotates in the same direction. Further, the rollers 3a, 3b, 3c, and 3d are arranged symmetrically with respect to the center of the rotor 4. Since the rollers 3a, 3b, 3c, and 3d themselves are designed not to rotate, the rollers rotate in the reverse direction by interposing a tube from the relationship between the rotor 4 and the stator 2.
In FIG. 11, the tube 1 is sandwiched between the stator 2 and the rotor 4. Similarly, the tube 1 is sandwiched between the stator 2 and the rotor 4.
In FIG. 8, by rotating the rotating shaft 6 using the motor 5, the rotor 4 rotates in the same direction as the rotating shaft, and each roller 3a, 3b, 3c, 3d is placed in a tube sandwiched between the upper and lower stators and the rotor. It has a structure that touches and rotates. Using the rotation of each roller, the fluid contained in the container is fed using a tube. Each of the rollers rotating using the tube 1 sandwiched between the stator 2 and the rotor 4 presses the tube 1 against the stator 2, and the fluid accumulated in the tube 1 is rotated using the rotation of each roller and the rotation of the stator. Move. By repeating each rotation, liquid can be fed and liquid can be filled into another container.
Similarly, the tube 1 is sandwiched between the rotor 4 and the stator on the stator 2 side, so that liquid can be fed in the same manner as the stator 2 side.
On the stator 2 side and the stator 2 side, since the center of the rotor is symmetric, the liquid feeding direction is reversed.
Therefore, suction and discharge are possible.

Fig. 12 shows how the fluid in the tube is fed by each roller.
Here, the rotation direction of the rotor is clockwise.
Fluid flows into the tube sandwiched between the stator and rotor. When the roller 3a moves to the position of the roller 3a in the drawing (b), the fluid in the pressed tube moves to the stator.
In each roller 3b, 3c, 3d, the fluid in the tube that is pressed against the stator by the roller moves in the same way.
These continuous operations enable suction and discharge in one tubing pump.

By the above, suction and discharge can be done by two pumps of two sets of rotors, and when the position of the tip of the tube to the container is adjusted at the time of liquid feeding to the container, fluid filling work by liquid level regulation Can be done accurately.
Preferably filling and full filling of the fluid container. Fill container with viscous fluid.
Filling containers that require liquid level regulation and liquid level control. Fill a predetermined amount of fluid.
In addition, when used in a dialyzer and used for extracorporeal circulation of blood in an artificial lung or a medical tubing pump, an effective effect can be obtained.

The motor 5 is used to rotate the circular rotor 4. In order to rotate the rotor 4 using the rotation of the motor 5, the rotating shaft 6 is incorporated in the center of the rotor 4. A flexible tube 1 is interposed between the rotor 2 and the stator 2 having a single arc-shaped depression on the rotating shaft of the rotor 4. Each of a plurality of rollers 3 a, 3 b, 3 c, 3 d in which the rotating shaft 6 of the rotating rotor 4 is arranged at equal intervals around the rotor 4 rotates in a direction different from the direction in which the rotating shaft 6 rotates. A method in which the tube 1 interposed between the stator 2 and the roller is pressed and pressed, the fluid in the tube is squeezed, and the pumping operation of the suction and discharge pumps is performed simultaneously. As a prototype, a tube with an inner diameter of 12.7 mm and an outer diameter of about 19.3 mm to 19.6 mm was used.
The material is silicon, C-flex and Farmed. The materials used for the rollers, rotors and rotating shafts are hard materials such as iron, stainless steel and plastic. The motor 5 uses an electric drive with a maximum capacity of 600 rpm.
In addition, air motors using compressed air can be used.
Since the rotating shaft 6 connected to the motor 5 is incorporated in the rotor 4, the rotating shaft 6 can be rotated in the same direction, and the rotor 4 rotates, and a plurality of rotation shafts 6 are arranged on the periphery thereof. The rollers 3a, 3b, 3c, and 3d are also configured to rotate. At that time, the rotated rollers are not rotated by themselves, but are designed to move freely.
The structure on the suction side is such that when the rotor 4 rotates the tube 1 sandwiched between the stator 2 and the rotor 4, the rollers 3a, 3b, 3c and 3d rotate in the same direction, and the tube 1 is pressed and pressed. Performs ironing operation. Fluid accumulates in the tube due to squeezing motion. By repeating the operation, the fluid accumulated by moving the fluid using the rotation of the rollers 3a, 3b, 3c, and 3d can be fed.
These operations are performed by two pumps.
Further, by rotating the rotor in the reverse direction, the suction side and the discharge side can be fed in the reverse directions described above.
By changing the number of rotations of the motor, it is possible to handle liquids with a liquid feeding amount and viscosity.

Tube 1
Stator 2
Rollers 3a, 3b, 3c, 3d
Rotor 4
Motor 5
Rotating shaft 6
Storage tank 7
Discharge pump 8
Suction tank 9
Tube and pipe 10
Multiple filling tube 11

Claims (4)

Using a multiple filling pipe consisting of two pumps, one pump for discharge and one pump for suction, and an inner pipe and an outer pipe, the fluid is moved by connecting piping with tubes or pipes. Alternatively, use two filling pipes separated from two pumps in total, one pump for discharge and one pump for suction, and connect and connect the fluid with tubes or pipes to move the fluid. As described above, each pump and a filling pipe are configured so that one pipe is used for discharging the fluid and the other pipe is used for sucking the fluid, and by controlling the discharge amount and the suction amount of the fluid, A fluid filling method, wherein the amount of filling can be adjusted when the fluid is moved to an open container or a closed container. 2. The filling method according to claim 1, wherein each pipe is a tube pump or a pump other than the tube pump and capable of switching between fluid discharge and fluid suction operation by forward drive and reverse drive (forward rotation and reverse rotation). During the filling time, the discharge operation and suction operation are switched for each tube depending on the purpose of filling, and the open or closed container is filled with quantitative filling, liquid level regulation, prevention of dripping, viscosity A fluid filling method characterized by performing a fluid filling operation or the like. In the filling method according to claim 1 or 2, each tube is operated in the container at the time of filling the container (the filling tube discharge suction port is moved up and down between the bottom of the container and the opening of the container). Filling and discharging the filling tube inside the container, such as filling the tube, discharging the filling tube at an arbitrary position after operation, filling to temporarily stop the suction port, and setting the filling tube discharge suction port at an arbitrary position A fluid characterized by operations that can be performed by adjusting the position of the mouth part to perform quantitative filling in an open or closed container, filling by liquid level regulation, prevention of dripping, filling of viscous fluid, etc. Filling method. The filling method according to any one of claims 1 to 3, wherein the pump is capable of discharging a fluid and switching a fluid suction operation other than a tubing pump or a tubing pump, and each of two filling pipes, Are connected by tubes and pipes, and each pump / filling pipe is operated as a set of filling systems by continuously operating a set of filling methods in which one pipe is used for discharging and the other pipe is used for suction. A fluid filling method characterized by operations capable of performing quantitative filling into an open or closed container, filling by liquid level regulation, prevention of dripping, filling of a viscous fluid, and the like.

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