JP2005008230A - Fluid filling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fluid filling device which can fill a large amount of fluid per unit time without dripping of the fluid even when it is highly viscous or contains an ingredient. <P>SOLUTION: This relates to a fluid filling device which is provided with a shut off nozzle for shutting off a fluid to be filled when a predetermined amount of the fluid is filled in a container. The device is provided with a shut off valve mechanism with no fluid line at the downstream side of the shut off part. A core rod section 20 driven by air is provided in the hollow space of a valve movable body. When the shut off valve is closed, the rod section 20 is pulled into the space for preventing dripping with the surface tension of the fluid. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fluid filling device for filling a container with a liquid such as a seasoning liquid, a detergent, or a medicine.
[0002]
[Prior art]
In the conventional fluid filling apparatus, the following method has been taken to increase the filling capacity. That is, (a) the filling amount per unit time of the filling nozzle (head) is increased. (B) Increase the number of filling nozzles (heads) per filling device.
[0003]
In the method (a), if the filling speed is increased while the pipe is thin, foaming and splashing of the liquid occur, which causes a problem that contaminates the container and the filling machine. It was necessary to increase the filling amount per unit time by increasing the thickness. A method for increasing the processing capacity of the filling device by increasing the diameter of the pipe is disclosed in Patent Document 1.
[0004]
In Patent Document 1, in order to prevent dripping of the filling liquid existing from the valve part that shuts off the filling liquid to the nozzle part, a mesh through which the liquid passes is arranged in the nozzle part, and when the filling is completed by the surface tension of the mesh hole. The dripping was prevented.
[0005]
However, a filling liquid containing a fibrous material has a problem that it cannot be used because it clogs the mesh portion.
[0006]
On the other hand, in the method (b), there are problems that the number of parts of the filling device is increased and the size is increased, so that the cost is increased and the space needs to be secured.
[0007]
[Patent Document 1]
JP 2002-321707 A (pages 2, 3 and 1)
[0008]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described problems, and does not cause dripping at the end of filling regardless of the properties of the filling liquid, and fluid filling provided with a nozzle mechanism that can increase the filling amount per unit time. It is an object to provide a device.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the fluid filling device of the present invention includes a valve outer peripheral cylindrical portion having a vertical flow path space in which a fluid flows downward;
A horizontal flow path space that is formed integrally with the upper part of the outer peripheral cylindrical part of the valve and has a diaphragm disposed at the uppermost part of the valve, and that is substantially perpendicular to the flow direction of the fluid, and its inlet connection part. An inner peripheral cylindrical inflow end portion;
An outer peripheral cylindrical nozzle portion connected to the lower side of the valve outer peripheral cylindrical portion by an outer peripheral cylindrical coupling member and having a tapered inclined inner wall whose inner diameter gradually decreases toward the tip of the valve;
A first hollow cylindrical outer wall that forms the vertical flow path space between the valve outer peripheral cylindrical portion and a second hollow whose outer wall outer diameter connected to the upper portion is substantially the same as the inner diameter of the valve outer peripheral cylindrical portion. A moving body hollow cylindrical portion provided with a cylindrical outer wall and capable of adjusting a fluid flow rate from the horizontal flow path to the vertical flow path by moving the hollow cylinder;
A gap between the upper end of the hollow cylinder of the same shape, the lower end of the substantially same shape, and the inner wall of the outer peripheral cylinder of the valve, which are opposed to each other so as to maintain confidentiality inside the hollow. A hollow moving body diverting portion provided with a plurality of rectifying guide plates having a length from the upper end portion to the lower end portion for diverting the vertical flow path to the bottom;
A movable body main body portion which is disposed in the hollow portions so as to be integrated with the cylindrical end portions of the movable body hollow cylindrical portion and the movable body branching portion, and serves as a central shaft body;
A connecting mechanism portion that can be detachably fixed to the lower side of the moving body main body portion, and a nozzle passage for ejected liquid in a vertical flow passage facing the tapered inclined inner wall surface of the outer peripheral cylindrical nozzle portion at the lower portion thereof. A movable body distal end portion provided with a tapered inclined outer wall to be formed and capable of opening and closing a valve by movement of the movable body main body;
A core rod portion that is inserted into the hollow interior of the distal end portion of the movable body so as to be movable in the axial direction, and has a continuous hemispherical curved surface head that compensates for the hollow portion of the distal end portion;
Further comprising
An upper side of the movable body main body is fixed to an end portion of a drive piston rod that passes through the diaphragm and moves below the drive pneumatic circuit that moves the movable body main body downward. A first spring for biasing the main body portion upward with respect to the outer peripheral cylindrical portion of the valve is provided, and the moving body is moved downward by the pneumatic pressure input to the driving pneumatic circuit portion to close the valve, and the pneumatic pressure input If it is set to OFF, the moving body is moved upward by the first spring and includes a shut-off valve mechanism that opens the valve,
Further, the lower side of the movable body main body is connected by the connection mechanism at the distal end of the movable body, and is fixed by sandwiching the movable body hollow cylindrical portion and the movable body diverting portion between the diaphragm, A second spring for urging the core rod portion upward with respect to the movable body tip is provided, and an air supply passage for supplying air along the central axis is provided above the movable body main body. And an air supply mechanism for supplying air from the outside to the air supply passage, and by supplying air to the air supply mechanism, the core rod is moved downward to form a curved surface at the distal end of the moving body The core rod part moves upward when the supply of air is stopped, and a sucking back mechanism for the core rod part is formed.
[0010]
Further, the shut-off valve mechanism section includes a plurality of pneumatic input terminals to the driving pneumatic circuit section, and has a flow rate selection means capable of adjusting the amount of downward movement of the movable body main body section in a plurality of stages. It is characterized by.
[0011]
The shut-off valve mechanism is provided with a plurality of pneumatic input terminals corresponding to a large flow rate filling and a small flow rate filling, and at the start of fluid filling, it is confirmed by a metering detecting means for detecting the filling state, and the sucking valve An air supply means for automatically supplying air to the air supply passage so that the core rod portion of the back mechanism is moved downward and a curved surface is formed on the head of the moving body;
At the end of fluid filling, the core detecting section is automatically checked so that the core rod portion moves upward and the core rod head of the concave portion is formed so that the fluid at the tip of the core rod does not drip. And a computer control unit including at least air stopping means for stopping air supply to the air supply passage.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
1 to 4 are sectional views of the fluid filling apparatus 1 according to the present invention, and show states during operation from the start to the end of filling, respectively.
[0014]
In FIG. 1, liquid is allowed to flow from the inlet connection portion 6 a of the fluid filling device 1, discharged from the nozzle tip portion 7 a, and a container (not shown) disposed therebelow is filled with a large flow rate. It is sectional drawing which shows the state in operation | movement in the case.
[0015]
FIG. 2 is a cross-sectional view showing a state during operation when the filling liquid is filled at a small flow rate.
[0016]
FIG. 3 is a cross-sectional view showing a state during operation when the flow rate is stopped to finish filling the container.
[0017]
FIG. 4 is a cross-sectional view showing a state during operation for preventing liquid dripping from the tip of the nozzle following the end of filling.
[0018]
Hereinafter, functions of the respective units in FIGS. 1 to 4 will be described in detail. Reference numeral 4 denotes a valve outer peripheral cylindrical portion, which forms a vertical flow path space 5 b along which the liquid flows downward along the inner wall of the valve outer peripheral cylindrical portion 4. The vertical flow path space 5 b is a space formed in a gap between the outer wall of the moving body hollow cylindrical portion 8 and the moving body branching portion 9 described later and the inner wall of the valve outer peripheral cylindrical portion 4.
[0019]
Reference numeral 6 denotes an outer peripheral cylinder inflow end portion, which is formed integrally with the upper portion of the valve outer peripheral cylindrical portion 4. A diaphragm 11 made of a flexible thin ring-shaped elastic body is disposed at the top of the valve. The diaphragm 11 is secured to the ring-shaped outer periphery with a screw 23b so that liquid does not leak, while the ring-shaped inner periphery is secured to the upper part of the movable body hollow cylindrical portion 8 to be described later with a screw or the like. Yes.
[0020]
The liquid enters from the inlet connection portion 6a of the outer peripheral cylinder inflow end portion 6, passes through the horizontal flow path space 5a formed by the diaphragm 11, and flows to the perpendicular vertical flow path space 5b.
[0021]
Reference numeral 7 denotes an outer peripheral cylindrical nozzle portion, which forms a tapered inclined inner wall whose inner peripheral diameter gradually decreases toward the nozzle tip 7a as shown. The outer peripheral cylindrical nozzle portion 7 is detachably connected to the valve outer peripheral cylindrical portion 4 by an outer peripheral cylindrical coupling member 19.
[0022]
Reference numeral 8 denotes a moving body hollow cylindrical portion, which is disposed inside the upper portion of the valve outer peripheral cylindrical portion 4.
[0023]
5A and 5B show the movable body hollow cylindrical portion 8, where FIG. 5A is a side view and FIG. 5B is a plan view. As shown in FIG. 5, the movable body hollow cylindrical portion 8 includes a first hollow cylindrical outer wall W1 having an outer diameter D1 for forming a vertical flow path space 5b between the movable body hollow cylindrical portion 4 and the valve outer peripheral cylindrical portion 4; A second hollow cylindrical outer wall W2 having an outer diameter D2 that is substantially the same size as the inner diameter of the cylindrical portion 4 is provided. Furthermore, two small channel grooves 8a are provided on the circumference at the lower end of the second hollow cylindrical outer wall W2. The small flow path groove 8a is used to minimize the flow rate, and may be provided in one or more places. D3 indicates the cylindrical inner diameter of the movable body hollow cylindrical portion 8.
[0024]
The movable body hollow cylindrical portion 8 adjusts the liquid flow rate from the horizontal flow path 5a to the vertical flow path 5b by moving in the vertical direction. FIG. 1 shows a case where the first open / close flow path 5x where the flow path bends from the horizontal direction to the vertical direction is the widest, and corresponds to a large flow rate.
[0025]
FIG. 2 shows a case where the first open / close channel 5x is narrow, and the channel is in a state in which the minimum flow rate through the small channel groove 8a is set. 3 and 4 show a case where the first open / close flow path 5x is closed, corresponding to the end of filling and the suck back operation after the end of filling.
[0026]
The rectifying moving body branching portion 9 is arranged below the moving body hollow cylindrical portion 8. An O-ring is disposed between the lower end of the moving body hollow cylindrical portion 8 and the upper end of the cylinder of the rectifying moving body branching portion 9 facing the lower end of the moving body hollow cylindrical portion 8 to maintain airtightness. Further, the lower end of the cylinder of the rectifying moving body branching portion 9 is configured to be opposed to the upper end of the moving body distal end portion 10 to be described later, and an O-ring is disposed therebetween to maintain airtightness.
[0027]
FIGS. 6A and 6B show the rectifying moving body branching portion 9, in which FIG. 6A is a side view and FIG. 6B is a cross-sectional view taken along line AA in FIG. A plurality of rectifying guide plates 9 a are provided on the outer periphery of the rectifying moving body diverting unit 9, and the rectifying unit flow path 5 c through which the liquid diverts and passes through the gap with the inner wall of the valve outer peripheral cylindrical unit 4. Form. The rectifying unit flow path 5c prevents turbulent flow and foaming by diverting the liquid flowing from the upstream side, and suppresses the occurrence of splashing and dripping from the nozzle.
[0028]
In FIG. 6, the outer diameter D1 including the rectifying guide plate 9a, the outer diameter D2 excluding the rectifying guide plate 9a, and the inner diameter D3 of the rectifying moving body diverting portion 9 are the moving body hollow cylinder shown in FIG. The portion 8 is formed to have the same diameter as the diameters D1, D2, and D3.
[0029]
The movable body main body 12 is inserted into the hollow portion so that the lower end cylindrical end portion of the movable body hollow cylindrical portion 8 and the upper cylindrical end portion of the rectifying movable body branching portion 9 are integrated and integrated. It is a shaft body.
[0030]
The movable body tip 10 includes a connection mechanism portion 10 a that is detachably connected to the lower side of the movable body main body 12 and a tapered inclined outer wall 10 b below the connecting mechanism portion 10 a, and the tapered inclined outer wall 10 b is a taper of the outer peripheral cylindrical nozzle portion 7. A nozzle channel 5d is formed to discharge the liquid that has passed through the vertical channel 5b and the rectifying unit channel 5c so as to face the inclined inner wall surface.
[0031]
As shown in FIG. 3, when the movable body main body 12 moves downward, the movable body tip 10 comes into contact with the tapered inclined inner wall surface of the outer peripheral cylindrical nozzle portion 7 and the valve is closed. In the closed state of the valve, the nozzle flow path 5d forms a closed second open / close flow path 5y, and forms a so-called shut-off valve mechanism in which there is almost no tip of the flow path.
[0032]
The core rod portion 20 includes a hemispherical curved head 20a that is inserted into the hollow interior of the movable body distal end portion 10 so as to be movable in the axial direction and is connected to the distal end of the rod, and closes the hollow portion of the movable body distal end portion 10. Yes.
[0033]
Next, a shut-off valve mechanism based on the operation of the fluid filling apparatus 1 having these configurations and a suck back mechanism based on the operation of the core rod portion 20 will be described.
[0034]
The upper side of the movable body main body 12 passes through the diaphragm 11 and is fixed to the driving piston rod end 30b of the driving pneumatic circuit section 30, and is urged upward with respect to the valve outer peripheral cylindrical section 4 by the first spring 13b. ing.
[0035]
The shut-off valve mechanism drives the drive piston rod by applying air pressure to the pneumatic input terminal 30a of the drive pneumatic circuit unit 30, and moves the movable body main body 12 connected to the end 30b downward. If the first open / close flow path 5x and the second open / close flow path 5y are closed and the pneumatic pressure is turned OFF, the movable body main body 12 biased by the first spring 13a moves upward and the first open / close flow path 5x is closed. The first open / close channel 5x and the second open / close channel 5y are opened.
[0036]
Next, a suck back mechanism using the core rod portion 20 will be described. The core rod 20 is urged upward by the second spring 21 with respect to the movable body tip 10.
[0037]
An air supply mechanism 23 is provided above the moving body main body 12 (between the pneumatic circuit mechanism 13 and the diaphragm 11 in this embodiment), and air is supplied along the central axis of the moving body main body 12. An air supply passage 22 is provided.
[0038]
The suck back mechanism moves the core rod portion 20 at the tip downward by air pressure by supplying air from the air supply port 23 a of the air supply mechanism portion 23, and continues to the outer peripheral tapered surface of the movable body tip portion 10. The curved head 20a is formed. This state is the state during the liquid filling shown in FIGS. 1 and 2, and the liquid flow from the nozzle is adjusted.
[0039]
On the other hand, if the supply of air from the air supply port 23a is stopped, the core rod portion 20 biased by the second spring 21 moves upward, and a recess is formed at the tip of the movable body tip portion 10. The (See Figure 4)
[0040]
By this operation, the liquid dripping at the end of filling is maintained by holding the liquid slightly remaining in the gap between the tapered inclined surfaces of the outer peripheral cylindrical nozzle portion 7 and the movable body tip portion 10 in the recess formed at the tip with surface tension. Disappear.
[0041]
FIG. 7 is a side view of the air supply mechanism 23 and shows that the position of the air supply port 23a provided in the movable body main body 12 is different between when filling a large flow rate and when filling is completed. In the case of small flow rate filling, the air supply port 23a is in the middle. A pneumatic hose to the air supply port 23a is a flexible hose (not shown).
[0042]
FIG. 8 is a schematic diagram showing a second embodiment of the fluid filling apparatus 2 provided with a shut-off valve with a suck back function according to the present invention. The same reference numerals as those in FIG.
[0043]
2nd Embodiment is the structure of the fluid filling apparatus 1 provided with the computer control part 90 and a suck back function being processed efficiently with sufficient timing.
[0044]
In FIG. 8, 50 is a liquid tank. The container 60 to be filled is mounted on the transport unit 61 and is automatically carried out when a predetermined amount is filled, and the next empty container 60 is replenished immediately below the nozzle tip 7a and filling is started. The filling amount is detected by the weighing means 62. 62 a is a data output terminal of the weighing means 62.
[0045]
The air supply unit 70 supplies air to the suck back mechanism and includes an air supply signal input terminal 70a.
[0046]
The pneumatic output unit 80 outputs pneumatic pressure that drives the shut-off valve mechanism, and includes an input terminal 80a for an pneumatic output selection signal. The pneumatic pressure output unit 80 receives a filling flow rate selection signal and sends the pneumatic pressure corresponding to the flow rate to the driving pneumatic circuit unit 30.
[0047]
The computer control unit 90 includes at least a CPU 91, a storage unit 92, a weighing data input unit 93, an air supply signal output unit 94, a pneumatic output selection signal output unit 95, an input device 96, and a bus 97. Has been.
[0048]
The CPU 91 includes at least an air supply unit 91a, an air stop unit 91b, a measurement detection unit 91c, a selection signal input unit 91e that receives control selection data manually input from the operation manager via the input device 96, and an air pressure output unit 80. Each means of selection signal output means 91f which sends a selection signal to is provided.
[0049]
In this embodiment, the computer control unit 90 manages the position of the container 60 and the amount of filling liquid by the measurement detection means 91c, and automatically manages the operation of filling start, filling flow rate control, and filling stop. is there. The operation will be described below in order.
[0050]
First, when the empty container 60 is set at a predetermined position, the measurement detection unit 62 detects it and notifies the computer control unit 90 via the measurement data input unit 93 connected to the output terminal 62a. Receiving this signal, the computer control unit 90 confirms that the liquid filling is started by the measurement detecting means 91c.
[0051]
Next, the air supply means 91a outputs a supply signal from the air supply signal output unit 94 to the air supply signal input terminal 70a of the air supply unit 70, and starts supplying air from the air supply unit 70 to the air supply port 23a. By this operation, the core rod portion 20 of the suck back mechanism moves downward, forms a curved surface continuous with the head of the movable body tip portion 10, and has a nozzle shape at the time of filling.
[0052]
Next, the selection signal output unit 91e outputs a selection signal corresponding to the filling flow rate to the pneumatic pressure output selection input terminal 80a connected to the selection signal output unit 95, and operates the pneumatic pressure output unit 80. The air pressure output unit 80 cancels the valve closed state in which air pressure is applied, and starts filling with air pressure corresponding to the flow rate.
[0053]
Here, if selection data of a large flow rate to a small flow rate is set by the selection signal input means 91d, the selection signal is output.
[0054]
During filling, the filling amount is monitored by the metering detection means 91c, and when the predetermined filling amount is reached, a signal for closing the valve is sent to the pneumatic output unit 80 by the filling end signal output means 91f. The pneumatic output unit 80 applies a pneumatic pressure necessary for closing the valve to the driving pneumatic circuit unit 30 to bring it into a shut-off valve state.
[0055]
At the same time, the air stop unit 91a sends an air supply stop signal to the air supply unit 70 to stop the supply of the air pressure that has been moved down the core rod unit 20 or reduce the pressurization, thereby forming a recess for preventing dripping. Let the suck back state be
[0056]
At this time, the upward movement distance of the core rod part 20 can be adjusted according to the viscosity and property of the filling liquid, and the size of the formed recess can be made to be a size that facilitates the surface tension of the filling liquid. .
[0057]
The filled container 60 is discharged from the transport unit 61 to the downstream belt conveyor, and a new empty container 60 is disposed on the transport unit 61 to repeat the filling operation.
[0058]
FIG. 9 is a schematic diagram of a tip portion showing a third embodiment of a fluid filling device 2 provided with a shut-off valve with a suck back function according to the present invention. FIG. 9A shows an elastic body at the tip of a moving body. Sectional drawing which provided the diaphragm and inflated with air, (b) is sectional drawing which extracted the air of (a).
[0059]
In this embodiment, an air supply passage 22 that penetrates the central axis of the movable body main body 12 extends to the movable body tip 10 and opens, and the movable body tip 10 is a diaphragm head 20b made of an elastic material that swells with air. The tip member 10c is screwed and fixed with the pin interposed therebetween. FIG. 9A shows a state in which air is pressurized and the diaphragm head 20b swells to form a curved surface protruding from the tip of the tip member 10c.
[0060]
In FIG. 9B, air pressurization is weakened, the diaphragm head 20b is contracted, a recess is formed at the tip of the tip member 10c, and a space for holding the liquid remaining in the gap at the nozzle tip is created to prevent dripping. The state that the suck back mechanism is working is shown.
[0061]
In this configuration, instead of the core rod 20, the diaphragm head 20b can be directly expanded and contracted with air to form a suck back structure at the tip of the nozzle. For this reason, compared with 1st Embodiment, a structure can be simplified and a nozzle can be made cheap.
[0062]
【The invention's effect】
The fluid filling device of the present invention exhibits the following effects. That is, the flow rate per unit time of the filling liquid can be made larger than before, and the dripping at the end of filling can be prevented.
[0063]
Further, since the shut-off valve mechanism and the suck back mechanism can be driven individually, the timing of the suck back operation can be easily controlled.
[0064]
Furthermore, since the inside of the filling nozzle is not clogged, it is possible to efficiently perform the filling operation even with a filling liquid containing ingredients or a high viscosity filling liquid.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing the structure of a fluid filling apparatus 1 of the present invention. (Operation diagram when filling a large flow rate)
FIG. 2 is a cross-sectional view showing the structure of the fluid filling apparatus 1 of the present invention. (Operation diagram when filling a small flow rate)
FIG. 3 is a cross-sectional view showing the structure of the fluid filling apparatus 1 of the present invention. (Operation diagram at the end of filling)
FIG. 4 is a cross-sectional view showing the structure of the fluid filling apparatus 1 of the present invention. (Suckback operation diagram at the end of filling)
5A and 5B show a flow rate adjusting movable body hollow cylindrical portion 8, in which FIG. 5A is a side view and FIG. 5B is a plan view.
FIGS. 6A and 6B show a rectifying moving body branching portion 9, in which FIG. 6A is a side view and FIG. 6B is a cross-sectional view taken along line AA in FIG.
7 is a side view showing a structure of an air supply mechanism section 23. FIG.
FIG. 8 is a schematic diagram showing a configuration of a fluid filling apparatus 2 according to a second embodiment of the present invention.
FIG. 9 is a schematic diagram of a tip portion showing a third embodiment of a fluid filling device 2 provided with a shut-off valve with a suck back function according to the present invention. FIG. Sectional drawing which provided the diaphragm and inflated with air, (b) is sectional drawing which extracted the air of (a).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 2 Fluid filling apparatus 4 Valve | bulb outer periphery cylindrical part 5 Filling liquid flow path 5a Horizontal direction flow path 5b Vertical direction flow path 5c Rectification part flow path 5d Nozzle part flow path 5x 1st flow path 5y 2nd opening-and-closing flow path 6 Outer cylindrical inflow end 6a Inlet connection portion 7 Outer cylindrical nozzle portion 7a Nozzle tip 8 (for flow rate adjustment) Moving body hollow cylindrical portion 8a Small channel groove 9 Rectifying moving body diverting portion 9a Rectification guide plate 10 Movement Body tip 10a Connection mechanism 10b Tapered inclined outer wall 10c Tip member 11 Diaphragm 12 Mobile body 13 Pneumatic circuit mechanism 13a First spring 19 Outer cylindrical coupling member 20 Core rod 20a Curved head 20b Diaphragm head 21 First 2 spring 22 air supply passage 23 air supply mechanism 23a air supply port 23b fixing screw 30 driving pneumatic circuit 30a pneumatic input terminal 30b driving piston rod end 50 Body tank 60 Container 61 Belt conveyor 62 Weighing detection unit 62 Output terminal 70 Air supply unit 70a Air supply signal input terminal 80 Air pressure output unit 80a Air pressure output selection input terminal 90 Computer control unit 90a Air supply unit 90b Air stop unit 90c Weighing Detection means 90d Selection signal input means 90e Selection signal output means 90f Filling end signal output means

Claims (3)

A valve outer peripheral cylindrical portion having a vertical flow path space in which fluid flows downward;
A horizontal flow path space that is formed integrally with the upper part of the outer peripheral cylindrical part of the valve and has a diaphragm disposed at the uppermost part of the valve, and that is substantially perpendicular to the flow direction of the fluid, and its inlet connection part. An inner peripheral cylindrical inflow end portion;
An outer peripheral cylindrical nozzle portion connected to the lower side of the valve outer peripheral cylindrical portion by an outer peripheral cylindrical coupling member and having a tapered inclined inner wall whose inner diameter gradually decreases toward the tip of the valve;
A first hollow cylindrical outer wall that forms the vertical flow path space between the valve outer peripheral cylindrical portion and a second hollow whose outer wall outer diameter connected to the upper portion is substantially the same as the inner diameter of the valve outer peripheral cylindrical portion. A moving body hollow cylindrical portion provided with a cylindrical outer wall and capable of adjusting a fluid flow rate from the horizontal flow path to the vertical flow path by moving the hollow cylinder;
A gap between the upper end of the hollow cylinder of the same shape, the lower end of the substantially same shape, and the inner wall of the outer peripheral cylinder of the valve, which are opposed to each other so as to maintain confidentiality inside the hollow. A hollow moving body diverting portion provided with a plurality of rectifying guide plates having a length from the upper end portion to the lower end portion for diverting the vertical flow path to the bottom;
A movable body main body portion which is disposed in the hollow portions so as to be integrated with the cylindrical end portions of the movable body hollow cylindrical portion and the movable body branching portion, and serves as a central shaft body;
A connecting mechanism portion that can be detachably fixed to the lower side of the moving body main body portion, and a nozzle passage for ejected liquid in a vertical flow passage facing the tapered inclined inner wall surface of the outer peripheral cylindrical nozzle portion at the lower portion thereof. A movable body distal end portion provided with a tapered inclined outer wall to be formed and capable of opening and closing a valve by movement of the movable body main body;
A core rod portion that is inserted into the hollow interior of the distal end portion of the movable body so as to be movable in the axial direction, and has a continuous hemispherical curved surface head that compensates for the hollow portion of the distal end portion;
Further comprising
An upper side of the movable body main body is fixed to an end portion of a drive piston rod that passes through the diaphragm and moves below the drive pneumatic circuit that moves the movable body main body downward. A first spring for biasing the main body portion upward with respect to the outer peripheral cylindrical portion of the valve is provided, and the moving body is moved downward by the pneumatic pressure input to the driving pneumatic circuit portion to close the valve, and the pneumatic pressure input If it is set to OFF, the moving body is moved upward by the first spring and includes a shut-off valve mechanism that opens the valve,
Further, the lower side of the movable body main body is connected by the connection mechanism at the distal end of the movable body, and is fixed by sandwiching the movable body hollow cylindrical portion and the movable body diverting portion between the diaphragm, A second spring for urging the core rod portion upward with respect to the movable body tip is provided, and an air supply passage for supplying air along the central axis is provided above the movable body main body. And an air supply mechanism for supplying air from the outside to the air supply passage, and by supplying air to the air supply mechanism, the core rod is moved downward to form a curved surface at the distal end of the moving body And a core rod portion suck-back mechanism in which the core rod portion moves upward when the air supply is stopped and a concave portion is formed at the tip of the movable body. The shut-off valve mechanism unit includes a plurality of pneumatic input terminals to the driving pneumatic circuit unit, and includes a flow rate selection unit capable of adjusting a downward movement amount of the movable body main body unit in a plurality of stages. The fluid filling apparatus according to claim 1. The shut-off valve mechanism is provided with a plurality of pneumatic input terminals corresponding to a large flow rate filling and a small flow rate filling, and at the start of fluid filling, it is confirmed by a metering detection means for detecting the filling state, and the suck back mechanism An air supply means for automatically supplying air to the air supply passage so that the core rod portion is moved downward and a curved surface is formed on the movable body tip portion head;
At the end of fluid filling, the core detecting section is automatically checked so that the core rod portion moves upward and the core rod head of the concave portion is formed so that the fluid at the tip of the core rod does not drip. The fluid filling device according to claim 1, further comprising: a computer control unit including at least an air stop unit that stops air supply to the air supply passage.

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