Filling valve device and filling method

Abstract

To perform excellent liquid charging where it is easy to adjust an opening / closing speed or a degree of closing of a charging valve that opens / closes a liquid passage formed of a flexible tube, and liquid dripping does not occur even if a fluid is mixed with a solid matter.SOLUTION: A charging valve device is provided with: a rotation body 13 disposed on a rotation shaft that is normally / reversibly rotated by drive of an actuator 12 and rotating around the rotation shaft; an upstream-side pressing part 14a and a downstream-side pressing part 14b disposed in a protruded manner from the rotation body 13 and disposed so that a flexible tube 2 is positioned therebetween; and an upstream-side engaged surface part 16a against which the upstream-side pressing part 14a presses the flexible tube 2 by rotation of the rotation body 13 and a downstream-side engaged surface part 16b against which the downstream-side pressing part 14b presses the flexible tube 2. The upstream-side pressing part 14a is disposed to be able to press the flexible tube 2 against the upstream-side engaged surface part 16a before the downstream-side pressing part 14b presses the flexible tube 2 against the downstream-side engaged surface part 16b when the rotation body 13 is rotated in a direction of closing a liquid passage by drive of the actuator 12.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a filling valve device and a filling method for opening and closing a liquid flow path for a fluid, which is made of a flexible tube, when filling a fluid in a filling device, and controlling the flow of the fluid. [Background technology]

[0002] In the filling and packaging industry and the like, in order to fill containers with a filling liquid, a pinch valve is provided before the filling nozzle in the liquid flow path of the filling device, and this pinch valve is operated in accordance with the timing of the opening and closing operations to adjust the pressure on the liquid flow path consisting of a flexible tube, and to control the start and stop of filling or the filling flow rate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-079101 A Summary of the Invention [Problem to be solved by the invention]

[0004] In this type of filling device, when the filling liquid is a fluid containing solids, such as a dressing containing ingredients such as vegetables, the ingredients can get caught in the liquid flow path pressed by the pinch valve, creating a gap and making it impossible to completely stop the flow of liquid (leading to dripping).

[0005] Also, to fill a fixed amount, it is essential to set the timing, operation time, speed, etc. of the opening and closing operation of the pinch valve. In conventional filling equipment, a throttle valve (speed controller) is used, and the operation time and speed of the opening and closing operation of the pinch valve are changed every time the type of liquid to be filled into the container is changed, and the amount of fluid supplied and discharged by the throttle valve is adjusted to ensure appropriate filling.

[0006] However, conventional throttle valve opening adjustments were performed manually by adjusting the opening of a built-in needle valve, relying on the skill of the adjuster, and did not allow for numerical control or reproducibility, making highly accurate opening adjustments extremely difficult work.

[0007] The present invention has been made in consideration of such problems, and aims to provide a filling valve device and a filling method which enable easy adjustment of the opening / closing speed and degree of closure of the filling valve which opens and closes a liquid flow path consisting of a flexible tube, and which can perform good liquid filling without causing dripping, even with fluids containing solids. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the filling valve device of the present invention is disposed between a tank for storing a filling liquid and a filling nozzle for injecting the filling liquid into a container, and opens and closes a liquid flow path of the filling liquid consisting of a flexible tube by driving an actuator, the filling valve device comprising: a rotor disposed on a rotating shaft which rotates forward and backward by driving the actuator and rotates about the rotating shaft; and two pressing parts which are protruding from the rotor and disposed on both sides of the flexible tube so as to position the flexible tube between them, and the pressing parts are arranged to press the flexible tube at an upstream position in the longitudinal direction of the flexible tube by the rotation of the rotor. an upstream pressing portion which moves toward and away from a downstream position, and a downstream pressing portion which moves toward and away from a downstream position, an upstream contact surface portion against which the upstream pressing portion presses the flexible tube by rotation of the rotor, and a downstream contact surface portion against which the downstream pressing portion presses the flexible tube, the upstream pressing portion is arranged to be able to press the flexible tube against the upstream contact surface portion before the downstream pressing portion presses the flexible tube against the downstream contact surface portion when the rotor rotates in a direction to close the liquid flow path by driving the actuator, and by controlling the rotation of the actuator, Upstream pressing part and the downstream pressing portion is not pressing the flexible tube and the liquid flow path is fully opened. The upstream pressing portiona state in which the upstream pressing portion and the downstream pressing portion are both pressing the flexible tube to bend it into an S-shape, and the pressing force of the upstream pressing portion is reducing the cross-sectional area of ​​the liquid flow path; Downstream pressing part The liquid flow path is switched to a fully closed state.

[0009] The flexible tube is also characterized by being provided with a tube bending / extension adjustment section that adjusts the difference between the liquid flow path length of the flexible tube when it is supported in a stretched straight tube state and the liquid flow path length of the flexible tube when it is supported in a bent state due to the pressure of the upstream pressing section or the downstream pressing section.

[0010] Furthermore, the upstream contact surface portion is characterized in that it is arranged so as to be able to buffer the pressing force of the upstream pressing portion via the flexible tube by means of an elastic member arranged on a base material of the upstream contact surface portion.

[0011] Furthermore, The two pressing portions are each configured so as to be capable of being fixed by being fitted into an appropriately selected mounting hole from a large number of mounting holes provided on the surface of the rotating body.

[0012] The filling valve of the present invention By device In this case, by driving the actuator to rotate the rotor, the flexible tube can be pressed in two stages at the upstream position and the downstream position to close the liquid flow path. With this mechanism, the degree of pressing the flexible tube at the upstream position and the downstream position can be adjusted by adjusting the relative positions of the two pressing parts relative to the rotor, and even if the filling liquid is a fluid containing solid matter, it is possible to fill the liquid by reducing the cross-sectional area of ​​the liquid flow path of the flexible tube at the upstream position to block the flow of solid matter and completely stop the liquid that has become free of solid matter at the downstream position, thereby preventing dripping.

[0013] Furthermore, by setting the drive timing, speed, and rotation angle (including rotation direction) of the electric actuator, the opening and closing speed of the filling valve, which opens and closes the liquid flow path connected to the filling nozzle, can be adjusted with high precision, reproducibility, and in a short time, making it possible to fill the liquid easily and smoothly. Effect of the Invention

[0014] Thus, the filling valve of the present invention To the device This makes it easy to adjust the opening / closing speed and degree of blockage of the filling valve, which opens and closes the liquid flow path consisting of a flexible tube in the filling device, and provides the excellent effect of preventing dripping even with fluids containing solids, contributing to good liquid filling. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view illustrating the configuration of one embodiment of a filling valve device according to the present invention and a fully open state of a liquid flow path in a flexible tube; [Diagram 2] FIG. 2 is a perspective view illustrating a half-closed state in the filling valve device of FIG. 1, in which the liquid flow path is closed at the upstream position of the flexible tube and opened at the downstream position; [Diagram 3] FIG. 2 is a perspective view showing a fully closed state of the liquid flow path of the flexible tube in the filling valve device of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of a filling valve device 1 according to the present invention will be described with reference to Figs.

[0017] The filling valve device 1 of this embodiment is disposed in piping P of a liquid filling device which has a tank (not shown) for storing the filling liquid, a filling nozzle (not shown) positioned above a container at the filling site, and a liquid flow path consisting of piping P connecting the tank and the filling nozzle, and performs opening and closing operations of the liquid flow path.

[0018] The filling valve device 1 in this embodiment includes a flexible tube 2 (shown transparently in Figs. 1 to 3 of this embodiment) that is disposed in a certain section of the liquid flow path and constitutes the liquid flow path together with a pipe P. Here, in the filling valve device 1 of this embodiment, the flexible tube 2 is formed into a tube shape with a circular cross section from a flexible material such as rubber, one end of which is connected via an upper connection part 3a to a terminal part of the pipe P that is connected to the tank located on the upstream side of the liquid flow path, and the other end is connected via a lower connection part 3b to an upper end part of the filling nozzle (which may be the pipe P) located on the downstream side of the liquid flow path.

[0019] 1, the upper connection part 3a has a large diameter pipe section 4 that can fit and house the lower end of the piping P arranged on the upstream side of the liquid flow path along its inner circumference, and a small diameter pipe section 5 that is connected to the bottom of the large diameter pipe section 4 and can fit the upper end of the flexible tube 2 onto its outer circumference. The lower connection part 3b has the large diameter pipe section 4 that can fit and house the upper end of the filling nozzle arranged on the downstream side of the liquid flow path along its inner circumference, and a small diameter pipe section 5 that is connected to the top of the large diameter pipe section 4 and can fit the lower end of the flexible tube 2 onto its outer circumference.

[0020] In this embodiment, the upper connection portion 3a is equipped with a tube length adjustment portion 6 for adjusting the difference between the liquid flow path length of the flexible tube 2 when it is supported in a stretched out straight tube state and the liquid flow path length of the flexible tube 2 when it is supported in a bent state due to the contact and pressure of the two pressing portions 14a, 14b described below.

[0021] Specifically, the tube length adjustment unit 6 is made of a coil spring, and with the upper end of the flexible tube 2 positioned within the central diameter of the coil spring, the upper end of the coil spring is fixed to the outer periphery of the large diameter tube 4 of the upper connection part 3a, and the lower end is disposed around the small diameter tube 5 of the upper connection part 3a, and adjusts the difference with the liquid flow path length in cooperation with the upper connection part 3a. This will be described in detail later.

[0022] The filling valve device 1 also includes an operating means 7 for opening and closing the liquid flow path of the flexible tube 2. In this embodiment, the operating means 7 is disposed on a mounting member 8 with its front surface disposed vertically along the liquid flow path formed by the flexible tube 2 disposed to extend in the up-down direction.

[0023] More specifically, an upper support portion 9a and a lower support portion 9b are formed on the front side of the mounting member 8, which support the flexible tube 2 at an upstream position and a downstream position in the longitudinal direction of the flexible tube 2. In this embodiment, the upper support portion 9a and the lower support portion 9b are each plate-like members having a U-shaped cutout 10 formed therein, and the flexible tube 2 is fitted into the U-shaped cutout 10, thereby supporting the flexible tube 2 at an upstream position and a downstream position, respectively.

[0024] The flexible tube 2 is supported in a straight tube shape when the lower end of the coil spring as the tube length adjustment part 6 arranged around the small diameter tube part 5 of the upper connection part 3a is placed on the upper surface of the upper support part 9a in an uncontracted state. When the flexible tube 2 is bent by the contact and pressure of the two pressing parts 14a, 14b described later, the lower end of the coil spring is pressed against the upper surface of the upper support part 9a and contracts, and the liquid flow path length of the flexible tube 2 is slightly extended and the flexible tube 2 is supported in a substantially S-shape.

[0025] In this embodiment, as described above, the effective liquid flow path length of the flexible tube 2 when it is supported in a straight tube state differs from the effective liquid flow path length of the flexible tube 2 when it is supported in an approximately S-shaped bent state, and the effective liquid flow path length in the approximately S-shaped bent state is slightly longer. However, the difference in the liquid flow path length of the flexible tube 2 is adjusted by varying the fitting depth between the large diameter pipe section 4 of the upper connection part 3a, which fits and stores the lower end of the piping P arranged on the upstream side of the liquid flow path along its inner circumference, and the lower end of the piping P arranged on the upstream side, by sliding.

[0026] An actuator 12 serving as a drive source for the filling valve device 1 is disposed on the back side of the mounting member 8. A plate-shaped rotating body 13 is supported on a rotating shaft (not shown) disposed so as to be rotatable in forward and reverse directions by the driving force of the actuator 12, and is positioned in the space between an upper support portion 9a and a lower support portion 9b on the front side of the mounting member 8, so as to rotate about the rotating shaft within a vertical plane. For example, it is assumed that a servo motor is used as the actuator 12, and the rotating body 13 is supported on the rotating shaft of the servo motor.

[0027] The rotor 13 has two pressing portions 14a, 14b, i.e., an upstream pressing portion 14a that contacts and separates at an upstream position in the longitudinal direction of the flexible tube 2 and a downstream pressing portion 14b that contacts and separates at a downstream position, protruding toward the front side of the flexible tube 2, and disposed such that a longitudinal intermediate portion of the flexible tube 2 is positioned between them. The two pressing portions 14a, 14b need to have a contact surface that is wider than the inner diameter (width) of the flexible tube 2 when it is pressed against the flexible tube 2 to block its liquid flow path. In this embodiment, each of the two pressing parts 14a, 14b is a round bar like a dowel, which is a joining member instead of a metal nail. By appropriately selecting one from the numerous mounting holes 15 drilled in the surface of the rotating body 13 and fitting it into the mounting hole 15 to fix it, it is possible to easily adjust the timing of opening and closing of the liquid flow path, the degree of blocking, the strength of pressing, etc. depending on the type of filling liquid at any given time.

[0028] In the following, the rotation direction of the rotating body 13 when the two pressing portions 14a, 14b increase the pressure applied to the flexible tube 2 (clockwise in FIG. 1) is referred to as the "forward direction," and the rotation direction of the rotating body 13 when the pressure applied to the flexible tube 2 is decreased (counterclockwise in FIG. 1) is referred to as the "reverse direction."

[0029] The mounting member 8 is formed with an upstream contact surface portion 16a, by which the upstream pressing portion 14a presses against the flexible tube 2 to close the liquid flow path when the rotor 13 rotates in the forward direction, and a downstream contact surface portion 16b, by which the downstream pressing portion 14b presses against the flexible tube 2 to close the liquid flow path.

[0030] In this embodiment, the two pressing portions 14a, 14b are provided on the rotating body 13 in a positional relationship such that, when the rotating body 13 rotates in the forward direction to close the liquid flow path, the upstream pressing portion 14a presses the flexible tube 2 against the upstream contact surface portion 16a before the downstream pressing portion 14b presses the flexible tube 2 against the downstream contact surface portion 16b.

[0031] The upstream abutment surface portion 16a is disposed so as to be capable of cushioning the pressing force of the upstream pressing portion 14a via the flexible tube 2 by means of an elastic member 18 provided on an abutment surface portion base material 17 disposed on the mounting member 8. In this embodiment, a coil spring is used as the elastic member 18, but it may also be a leaf spring, and furthermore, it is not limited to a spring, and other elastic members having elasticity such as rubber, sponge, etc. may also be used.

[0032] In this embodiment, a control unit (not shown) is provided to control the driving of the motor as the actuator 12 that rotates the rotor 13 in the forward and reverse directions. The control unit is provided with a memory that stores numerical control values ​​and operation programs of the motor corresponding to the opening and closing degrees that are set to appropriate values ​​in advance according to various working conditions such as the type of fluid, the filling volume, and the filling speed. The control unit is also provided with a command output unit that outputs the numerical control values ​​and operation timing values ​​of the motor read from the memory to the motor. The control unit is further provided with an input unit such as a touch panel for inputting various working conditions such as the type of liquid, the filling volume, and the filling speed, a display unit such as a liquid crystal panel for displaying input information, output information, and the like, a CPU for operating each of the components in a related manner, and the like.

[0033] The filling valve device 1 of this embodiment is equipped with a known filling amount detection means (not shown) for detecting the amount of fluid filled into the container. The control unit is capable of driving the motor as the actuator 12 by adjusting the rotation direction, rotation amount, and rotation speed based on the filling amount detected by the filling amount detection means. The control unit may be shared with the control unit of the liquid filling device in which the filling valve device 1 is disposed.

[0034] Next, a filling method using the filling valve device 1 of this embodiment will be described as an example in which the filling liquid is a fluid such as a dressing containing solid matter.

[0035] In this embodiment, the rotating body 13 is rotated by changing the drive of the motor serving as the actuator 12, and the open / closed state of the liquid flow path is adjusted by pressing the flexible tube 2 between the upstream pressing portion 14a and the downstream pressing portion 14b arranged on the rotating body 13 and the corresponding contact surface portions 16a, 16b.

[0036] Specifically, the control unit controls the rotation of the motor serving as actuator 12, thereby switching from a state in which neither upstream pressing portion 14a nor downstream pressing portion 14b is pressing against flexible tube 2 and the liquid flow path is fully open (fully open state: Figure 1), to a state in which only upstream pressing portion 14a presses flexible tube 2 between upstream contact surface portion 16a, reducing the cross-sectional area of ​​the liquid flow path and blocking the flow of solids on the upstream side of the liquid flow path in flexible tube 2 (semi-closed state: Figure 2), to a state in which both upstream pressing portion 14a and downstream pressing portion 14b press against flexible tube 2, reliably blocking the liquid that has passed through a narrow passage formed on the upstream side of the liquid flow path in flexible tube 2 on the downstream side of the liquid flow path in flexible tube 2, and fully closing the liquid flow path of flexible tube 2 (fully closed state: Figure 3).

[0037] In practice, before filling begins, the rotation of the motor acting as actuator 12 is controlled to rotate the rotor 13 in the forward direction as shown in Figure 3, and the upstream pressing portion 14a and the downstream pressing portion 14b are used to press the flexible tube 2 between the corresponding abutment surfaces 16a, 16b to completely close the liquid flow path and prevent fluid from being sent to the filling nozzle.

[0038] At this time, the flexible tube 2 is bent into a substantially S-shape by the pressure of the upstream pressing portion 14a and the downstream pressing portion 14b to form a liquid flow path. When the flexible tube 2 arranged in a straight tube shape between the upper support portion 9a and the lower support portion 9b is bent into a substantially S-shape, in this embodiment, the lower end of the coil spring serving as the tube length adjustment portion 6 is pressed against the upper surface of the upper support portion 9a and contracts, thereby changing the fitting depth between the large diameter pipe portion 4 of the upper connection portion 3a and the lower end of the piping P arranged on the upstream side to a shallower depth, and the flexible tube 2 is excessively paid out between the upper support portion 9a and the lower support portion 9b.

[0039] In this state, the fluid supplied from the tank to the pipe P under its own weight or pressure flows into the flexible tube 2 through the liquid flow path.

[0040] Then, when filling starts, the rotation of the motor acting as actuator 12 is controlled based on a filling start signal, and as shown in Figure 1, the rotor 13 is rotated in the reverse direction, the pressure on the flexible tube 2 by the upstream pressing portion 14a and the downstream pressing portion 14b is released, and the fluid is filled into the container from the filling nozzle.

[0041] At this time, the flexible tube 2 is released from the pressure applied by the two pressing portions, and is supported in a straight tube shape between the upper support portion 9a and the lower support portion 9b by the inherent bending restoring force of the flexible tube 2 and the stretching restoring force of the coil spring serving as the tube length adjustment portion 6.

[0042] Then, based on the filling amount detected by the filling amount detection means, the control unit controls the rotation of the motor as actuator 12, and as shown in Figure 2, rotates rotor 13 in the forward direction, causing only upstream pressing portion 14a to abut against flexible tube 2 and press against upstream contact surface portion 16a to create a semi-closed state, blocking the flow of solids in the fluid and allowing only liquid to pass, and then, as shown in Figure 3, rotates rotor 13 further in the forward direction so that both upstream pressing portion 14a and downstream pressing portion 14b press against flexible tube 2, returning to a fully closed state in which the downstream side of the liquid flow path in flexible tube 2 reliably blocks the fluid that has passed through the narrow passage upstream of the liquid flow path in flexible tube 2.

[0043] Here, when the flow of fluid is blocked by bringing the downstream pressing portion 14b into contact with the flexible tube 2 and pressing the flexible tube 2 against the corresponding downstream contact surface portion 16b to achieve a fully closed state in which only the upstream pressing portion 14a is abutted against the flexible tube 2 and pressed against the corresponding upstream contact surface portion 16a, the upstream pressing portion 14a moves from the position where it was pressed against the upstream contact surface portion 16a in the semi-closed state to a position in the rotational direction as the rotating body 13 rotates, and presses the flexible tube 2 against the upstream contact surface portion 16a. In this embodiment, the upstream contact surface portion 16a corresponding to the upstream pressing portion 14a is provided on a contact surface portion base material 17 arranged on the mounting member 8 via a coil spring as an elastic member 18, and the elasticity of the coil spring allows the upstream pressing portion 14a to move from a half-closed position to a fully closed position while absorbing and adjusting the amount of movement and strength of pressure of the upstream pressing portion 14a from the half-closed state to the fully closed state.

[0044] In this way, the filling method using the filling valve device 1 of this embodiment makes it easy to adjust the opening and closing speed and degree of blockage of the filling valve that opens and closes the liquid flow path consisting of the flexible tube 2 of the filling device, and even if the fluid contains solids, by blocking the solids on the upstream side of the liquid flow path in the flexible tube 2, the liquid passing therethrough can be completely blocked on the downstream side of the liquid flow path, preventing dripping and contributing to good liquid filling.

[0045] In the above embodiment, the upstream pressing part 14a presses the flexible tube 2 to reduce the cross-sectional area of ​​the liquid flow path so that the flow of solid matter can be blocked. In other words, pressing force sufficient to obtain a fully closed state is not required.

[0046] The filling valve device 1 of this embodiment is an apparatus suitable for filling fluids containing solids, as in the above-mentioned embodiment, but even when filling fluids not containing solids, proper filling is possible by controlling the drive of the actuator 12 that rotates the rotor 13, and using one of the pressing parts and the corresponding contact surface part to repeat the above-mentioned fully open state and fully closed state. In other words, depending on the type of liquid, it is also possible to fill by repeating the fully open state of Fig. 1 and the fully closed state similar to the state of Fig. 2 by adjusting only the pressing state of the flexible tube 2 by the upstream pressing part 14a and the upstream contact surface part 16a, without using the downstream pressing part 14b and the downstream contact surface part 16b.

[0047] Furthermore, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention.

[0048] For example, the two pressing parts 14a, 14b may not be round rod-shaped as described above, but may be roller-shaped attached to an axle in a free-rolling state so that they can smoothly roll on the outer surface of the flexible tube 2, and the axle may be fitted and supported in a number of mounting holes 15 drilled in the surface of the rotor 13. In this way, by making the two pressing parts 14a, 14b into roller-shaped parts that rotate and slide on the flexible tube 2 when engaged with the flexible tube 2, it is possible to reduce friction when the two pressing parts 14a, 14b come into contact with the flexible tube 2, and to extend the durable life of the flexible tube 2.

[0049] In this embodiment, the tube length adjustment section 6 is provided in the upper connection section 3a, but this tube length adjustment section 6 may be provided in the lower connection section 3b, and furthermore, the configuration of the tube length adjustment section 6 is not limited to this embodiment. [Explanation of symbols]

[0050] 1 Filling valve device 2 Flexible Tube 3a Upper connection 3b Lower connection 4 Large diameter pipe section 5. Small tube 6 Tube length adjustment section 7. Operating means 8 Mounting material 9a Upper support part 9b Lower bearing part 10. Cutout 12 Actuator (motor) 13 Rotating Body 14a Upstream pressing part 14b Downstream pressing part 15 Installation hole 16a Upstream contact surface 16b Downstream side contact surface 17 Base material of contact surface 18 Elastic member

Claims

1. a filling valve device which is disposed between a tank for storing a filling liquid and a filling nozzle which injects the filling liquid into a container, and which opens and closes a liquid flow path of the filling liquid which is made of a flexible tube by driving an actuator, the filling valve device comprising: a rotor which is disposed on a rotating shaft which rotates forward and backward by driving the actuator and which rotates about the rotating shaft; and two pressing sections which protrude from the rotor and are disposed on both sides of the flexible tube so as to position the flexible tube between them, the upstream pressing section moving toward and away from an upstream position in the longitudinal direction of the flexible tube by the rotation of the rotor, and a downstream pressing section moving toward and away from a downstream position, and an upstream contact surface section against which the upstream pressing section presses the flexible tube, and a downstream contact surface section against which the downstream pressing section presses the flexible tube by the rotation of the rotor, the upstream pressing portion is arranged to be able to press the flexible tube against the upstream contact surface portion before the downstream pressing portion presses the flexible tube against the downstream contact surface portion when the rotating body is rotated in a direction to close the liquid flow path by driving the actuator, and by controlling the rotation of the actuator, the filling valve device can switch between a state in which neither the upstream pressing portion nor the downstream pressing portion presses the flexible tube and the liquid flow path is fully opened, a state in which only the upstream pressing portion presses the flexible tube between the upstream pressing portion and the upstream contact surface portion to reduce a cross-sectional area of ​​the liquid flow path, and a state in which both the upstream pressing portion and the downstream pressing portion press the flexible tube to bend it into an S-shape, and the pressure of the upstream pressing portion reduces the cross-sectional area of ​​the liquid flow path, and the downstream pressing portion fully closes the liquid flow path.

2. The filling valve device according to claim 1, further comprising a tube bending / extension adjustment section that adjusts the difference between the liquid flow path length of the flexible tube when it is supported in a stretched straight tube state and the liquid flow path length of the flexible tube when it is supported in a bent state due to the pressure of the upstream pressing section or the downstream pressing section.

3. The filling valve device according to claim 1 or 2, characterized in that the upstream contact surface portion is arranged so as to be able to cushion the pressure of the upstream pressing portion via the flexible tube by an elastic member arranged on a base material of the upstream contact surface portion.

4. A filling valve device as described in any one of claims 1 to 3, characterized in that each of the two pressing portions is configured to be fixed by fitting into an arrangement hole appropriately selected from a number of arrangement holes provided on the surface of the rotating body.

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