CN114555946A

CN114555946A - Fluid pressure feeding device

Info

Publication number: CN114555946A
Application number: CN202080070269.0A
Authority: CN
Inventors: 高桥洋平; 高山裕
Original assignee: Heishin Ltd
Current assignee: Heishin Ltd
Priority date: 2019-10-24
Filing date: 2020-08-31
Publication date: 2022-05-27
Also published as: TW202117184A; WO2021079620A1; TWI803779B; JP7407439B2; JP2021067235A; KR20220083806A

Abstract

The object of the present invention is to provide a fluid pressure feeding device which can suck up a fluid from a bag to be sucked up and pressure-feed the fluid until the remaining amount becomes sufficiently small even if the bag which stores the fluid to be sucked up has a fluid storage section and a fluid non-storage section; [ solution ] A fluid pressure feeding device (10) is provided with: a container (20) for containing a bag (100), a plate (50) placed above the bag (100) in the container (20), and a pump (70) for sucking fluid contained in the bag (100) are provided, wherein the fluid can be sucked and pumped by the pump (70) through an opening (106) formed in the bag (100) while applying a pressing force to the bag (100) through the plate (50), and the bag is provided with a seat section (30) which is arranged on the bottom side of the container (20) and can form a containing space section (35), and the bag (100) having a fluid containing section (102) and a fluid non-containing section (104) is contained in the container (20), so that the fluid non-containing section (104) can be contained in the containing space section (35).

Description

Fluid pressure feeding device

Technical Field

The present invention relates to a fluid pressure feeding device.

Background

Conventionally, the pumping device and the like disclosed in patent document 1 listed below are suitable for pressure-feeding a highly viscous fluid, for example. The pumping device of patent document 1 includes a uniaxial eccentric screw pump, and can pump a fluid at a desired discharge rate while minimizing pulsation even if the fluid has a characteristic of high viscosity that is difficult to pump by another pump.

[ Prior art documents ]

[ patent literature ] A

Patent document 1: japanese patent laid-open No. 2008-267307

Disclosure of Invention

In the pumping device and the like of patent document 1, the fluid to be pumped can be placed in a container provided in the pumping device and the like in a state of being contained in a bag. The present inventors have made intensive studies and found that: when a bag containing a fluid to be drawn has a fluid containing portion and a fluid non-containing portion, it is difficult to draw the fluid from the bag until the remaining amount becomes sufficiently small.

Therefore, an object of the present invention is to provide a fluid pressure feeding apparatus capable of pumping up a fluid from a bag to be pumped up until the remaining amount thereof becomes sufficiently small even if the bag containing the fluid to be pumped up has a fluid containing section and a fluid non-containing section.

(1) In order to solve the above problems, a fluid pressure feeding device according to the present invention includes: a container for housing a bag containing a fluid, a plate placed above the bag inside the container, and a pump that sucks the fluid housed in the bag; a fluid pressure-feeding device capable of sucking and pressure-feeding the fluid through an opening formed in the bag by the pump while applying a pressing force to the bag through the plate; the fluid pressure feeding device comprises a seat part which is arranged at the bottom side of the container and can form a containing space part; by housing the bag having the fluid housing portion and the fluid non-housing portion in the container, the fluid non-housing portion can be housed in the housing space portion.

The fluid pressure feeding device of the present invention is configured such that: in a state where a bag containing a fluid is placed in a container and a plate is disposed above the bag, the fluid can be pumped and pressurized by a pump through an opening formed in the bag while a pressing force is applied to the bag through the plate. In the fluid pressure feeding device according to the present invention, the seat portion provided on the bottom side of the container is configured to form a storage space portion that can store a fluid non-storage portion in which the fluid is not stored in the bag. Therefore, the fluid pressure feeding device of the present invention can suppress the following by housing the portion of the bag where the fluid non-housing portion is formed in the housing space portion: for example, the fluid non-containing section may become an obstacle when a pressing force is applied to the bag by the plate or when fluid is sucked by the pump. Therefore, according to the present invention, it is possible to provide a fluid pressure-feeding device capable of pumping out a fluid from a bag until the remaining amount of the fluid becomes sufficiently small even when the fluid is placed in a container in a state of being stored in the bag having a fluid storage portion and a fluid non-storage portion.

(2) In the fluid pressure-feed device of the present invention, it is preferable that: the housing space is provided at a central portion of the seat.

According to this configuration, the fluid non-housing section can be housed in the housing space section, and the bag can be disposed in the container with good balance. Thus, for example, when a pressing force is applied to the bag by the plate or fluid is pumped by the pump, the fluid non-containing section can be further prevented from being an obstacle, and the amount of fluid in the bag can be minimized.

(3) In the fluid pressure-feed device of the present invention, it is preferable that: the suction ports of the container and the pump are relatively moved in conjunction with the decrease in the amount of liquid to bring the suction port of the pump close to the bottom of the container; the seat is formed in a shape recessed in a tapered shape toward a position opposite to the suction port.

According to this configuration, the liquid contained in the bag is easily collected at a position on an extension line of the relative movement direction of the container and the suction port with respect to the suction port of the pump, and suction by the pump is easily performed to a corresponding degree. This can further improve the efficiency of drawing the liquid contained in the bag.

(4) In the fluid pressure-feed device of the present invention, it is preferable that: the suction ports of the container and the pump are relatively moved in conjunction with the decrease in the amount of liquid to bring the suction port of the pump close to the bottom of the container; the storage space portion is provided on an extension line of the suction port in a relative movement direction between the container and the suction port.

In the fluid pressure-feeding device of the present invention, the fluid stored in the fluid storage portion of the bag tends to be accumulated toward the fluid non-storage portion due to, for example, the influence of the pressing force applied from the plate to the bag. In the fluid pressure-feeding device according to the present invention, the storage space portion is provided on the extension line of the relative movement direction of the container and the suction port with respect to the suction port, and the fluid accumulated on the fluid non-storage portion side can be smoothly sucked and pressure-fed. Therefore, according to the fluid pressure-feeding device of the present invention, even when the fluid is prepared in the container in a state of being stored in the bag having the fluid storage portion and the fluid non-storage portion, the fluid can be sucked from the bag and pressure-fed until the remaining amount becomes sufficiently small.

Here, as described above, when the fluid is sucked from the bag while applying a pressing force to the bag by the plate placed above the bag in the container, the portion (gap portion) of the fluid storage portion that is left free by the suction of the fluid gradually increases as the suction of the fluid progresses. When a gap portion of the fluid housing portion exists between the fluid remaining in the fluid housing portion and the plate, for example, since the pressing force of the plate becomes difficult to be applied to the fluid as the gap portion increases, there is a possibility that the suction efficiency of the fluid, the remaining amount of the fluid remaining due to incomplete suction, or the like may be affected. Therefore, in the fluid pressure-feeding device of the present invention, it is desirable that even if the gap portion of the fluid housing section is formed, the influence of the gap portion on the suction efficiency, the suction margin, and the like of the fluid can be minimized.

(5) Based on this finding, the fluid pressure-feeding device of the present invention preferably includes: a peripheral space extending in the axial direction of the container and open to a region in which the bag is housed is formed between the outer peripheral surface of the seat portion and the inner peripheral surface of the container.

According to this configuration, even if a void portion that is left open by the suction of the fluid is formed in the fluid storage portion as the suction of the fluid proceeds, the void portion can be released into a peripheral space formed between the outer peripheral surface of the seat portion and the inner peripheral surface of the container. This makes it possible to minimize a decrease in the efficiency of fluid suction due to the presence of the void formed in the fluid storage section, an increase in the remaining fluid due to incomplete suction, and the like.

(6) In the fluid pressure feeding device of the present invention, it is preferable that: the fluid non-housing section is capable of being attached to the fluid non-housing section in a bundled state.

According to this configuration, for example, when the bag is stored in the container, the fluid non-storing portion can be positioned and arranged in the storing space portion with high accuracy by attaching the connector to the fluid non-storing portion in a state in which the fluid non-storing portion is bundled, and inserting the connector while storing the fluid storing portion in the storing space portion. This can suppress the fluid non-containing section from becoming an obstacle during fluid suction, and can minimize the amount of fluid in the bag that is drawn up.

(7) In the fluid pressure-feed device of the present invention, it is preferable that: the bag is formed in a rod-like shape by bundling the fluid non-receiving portions, and is received in the container in a posture in which the rod-like portion faces a bottom side of the container.

According to the fluid pressure-feeding device of the present invention, even if the fluid is stored in the bag formed into a rod-like shape by bundling the fluid non-storing portions, the fluid can be sucked from the bag and pressure-fed until the remaining amount becomes sufficiently small.

(effect of the invention)

According to the present invention, it is possible to provide a fluid pressure feeding apparatus capable of sucking a fluid from a bag and pressure-feeding the fluid until the remaining amount becomes sufficiently small, even if the bag containing the fluid to be sucked has a fluid containing section and a fluid non-containing section.

Drawings

Fig. 1 is an exploded view showing a fluid pressure feeding apparatus according to an embodiment of the present invention.

Fig. 2 is an enlarged view of a main portion of fig. 1.

Fig. 3 (a) is a sectional view showing the seat portion and the connector, and (b) is a sectional perspective view showing the seat portion and the connector.

Fig. 4 is a sectional view showing the uniaxial eccentric screw pump.

Fig. 5 is an explanatory diagram showing a first step for sucking and pumping a fluid by the fluid pumping device of fig. 1.

Fig. 6 is an explanatory diagram showing a second step for sucking and pressure-feeding a fluid by the fluid pressure-feeding device of fig. 1.

Fig. 7 is an explanatory view showing a third step for sucking and pumping a fluid by the fluid pumping device of fig. 1.

Fig. 8 is an explanatory diagram showing a fourth step for sucking and pressure-feeding a fluid by the fluid pressure-feeding device of fig. 1.

Fig. 9 is an explanatory view showing a fifth step for sucking and pressure-feeding a fluid by the fluid pressure-feeding device of fig. 1.

Fig. 10 is an enlarged view of a main portion of fig. 9.

Fig. 11 is an explanatory diagram showing a state in which the seat section of the fluid pressure-feeding device of fig. 1 is replaced with another member.

Fig. 12 (a) and (b) are explanatory views each showing an example of a bag containing a fluid.

(description of symbols)

10: fluid pressure feeding device

20: container with a lid

20 a: inner peripheral surface

30: seat part

34 a: peripheral surface

35: storage space part

36: connecting piece

38: peripheral space

50: board

70: pump and method of operating the same

76 x: suction opening

100: bag (CN)

102: fluid containing part

104: fluid non-containing part

106: opening(s)

Detailed Description

Hereinafter, a fluid pressure-feeding device 10 according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the configuration of the fluid pressure feeding device 10 will be described, and then the operation and the like of the fluid pressure feeding device 10 will be described.

Constitution of fluid pressure feeding device 10

As shown in fig. 1, the fluid pressure-feeding device 10 is generally configured to include: container 20, seat 30, plate 50, scraper 60, pump 70, and lifting device 90. The fluid pressure feeding device 10 is formed by: by disposing the bag 100 containing the fluid inside the container 20, the fluid can be pumped and delivered under pressure from the bag 100 by the pump 70 while applying a pressing force to the bag 100 by the plate 50 and the scraper 60 disposed above the bag 100. The fluid pressure-feeding device 10 is configured to be able to raise and lower the pump 70 by the raising and lowering device 90 according to the remaining amount of fluid. Hereinafter, the configuration of each part of the fluid pressure feeding apparatus 10 will be described in further detail.

The container 20 may be a bottomed cylindrical container such as a so-called pail (pail can) or drum (drum can), or a cylindrical container penetrating in the vertical direction. In the present embodiment, a bottomed cylindrical container is used as the container 20. The container 20 is formed as: the bag 100 containing the fluid can be introduced and disposed inside the bag from an open portion provided on the other end side in the axial direction with the closed portion on one end side in the axial direction serving as a bottom. In the fluid pressure delivery device 10, the container 20 can be disposed at a position adjacent to the support 92 on the lower end side of the support 92 constituting the elevating device 90.

Here, the bag 100 housed inside the container 20 is formed by molding a film made of a resin material such as Polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), Nylon (NY), cellophane (PT), or the like. As shown in fig. 12, the bag 100 is provided in a state of containing and sealing a fluid. The bag 100 includes a fluid storage portion 102 (hatched portion in the figure) and a fluid non-storage portion 104. The fluid container 102 is a region in the bag 100 in which a fluid to be pressure-fed is contained. The fluid non-housing portion 104 is a portion that does not house fluid and seals the fluid.

The bag 100 may be provided in any form, for example, a form in which a portion forming the fluid non-housing portion 104 is sealed by heat sealing, a form in which a portion forming the fluid non-housing portion 104 is bound and sealed by using a caulking, a form in which a portion forming the fluid non-housing portion 104 is bound and sealed by forming a bar shape by winding a tape or the like around the portion forming the fluid non-housing portion 104, or the like. That is, the bag 100 has a sealed portion 105 in the fluid non-containing portion 104, and the sealed portion 105 is formed by heat sealing or bundling and sealing with a bundling band, a rubber band, a sealing band, a string, a wire, a rivet, or the like. Since the bag 100 is sealed at the sealing portion 105 provided in the fluid non-housing portion 104 as described above, even if the fluid non-housing portion 104 is introduced into the container 20 from the opening portion provided on the upper end side of the container 20 in a state of being directed toward the bottom portion side of the container 20, the fluid does not leak from the bag 100 or the like. Further, when the fluid stored in the bag 100, for example, a highly viscous fluid, is simply introduced into the container 20, the fluid may not be deformed into a shape following the shape of the fluid storage portion 102. In this case, the shape of the fluid storage portion 102 is flattened or the like so as to enter the inside of the container 20 by rolling or the like the bag 100 on the ground before being introduced into the inside of the container 20, thereby forming the bag 100 into a variable shape.

The fluid contained in the bag 100 is not limited to a low-viscosity liquid having a low viscosity, and may be a high-viscosity liquid having a high viscosity. The fluid may be, for example, a moisture-curable adhesive that contains a raw material such as cyanoacrylate and silicone rubber and is cured by reaction with moisture in the air, an anaerobic-curable adhesive that contains a raw material such as acrylate (acrylic resin) and is cured by air exclusion, an ultraviolet-curable adhesive that contains a raw material such as acrylic resin and epoxy and is cured by irradiation with ultraviolet light, or the like.

As shown in fig. 1, 2, and the like, the seat portion 30 is a member disposed at the bottom side inside the container 20. As shown in fig. 3 and the like, the seat 30 has a seat main body 34 and a connector 36, and forms a housing space portion 35.

As shown in fig. 1, 2, and the like, the seat body 34 is a portion serving as a seat of the bag 100 inside the container 20. The seat body 34 has a height lower than that of the container 20. Therefore, when the seat main body 34 is disposed inside the container 20, the bag housing space 22 in which the bag 100 can be housed is formed above the seat main body 34. In addition, the outer diameter of the seat body 34 is smaller than the inner diameter of the container 20. Therefore, when the seat main body 34 is disposed inside the container 20, a peripheral space 38 is formed between the outer peripheral surface 34a of the seat main body 34 and the inner peripheral surface 20a of the container 20. The peripheral space 38 extends in the axial direction (vertical direction in the example of the drawing) of the container 20, and opens toward the bag housing space 22 above the seat body 34.

As shown in fig. 3, the seat main body 34 is formed in a shape in which a top surface 34b (a surface on the bag housing space 22 side) is recessed in a tapered shape. Namely, the seat body 34 is formed such that: the entire circumference is inclined downward toward the center side from a predetermined position on the radially outer side (a radial intermediate position in the present embodiment). The seat body 34 is provided with a housing space 35 capable of housing the fluid non-housing portion 104 of the bag 100. The storage space portion 35 is formed so as to open to the bag storage space 22 side on the top surface 34b of the seat main body 34. The storage space portion 35 is located on an extension line of the relative movement direction of the container 20 and the suction port 76x with respect to the suction port 76x of the pump 70 described later. The storage space portion 35 is formed as a hollow portion extending in the axial direction (vertical direction in the illustrated state) of the container 20. In the present embodiment, the accommodation space portion 35 is formed as a through hole penetrating the seat main body 34. A step portion 35a is provided at an opening end (end on the bag housing space 22 side) of the housing space portion 35, and the step portion 35a is formed in a step shape so that a flange portion 36b of a connector 36 described later can be fitted therein.

The connector 36 is a member that can be inserted from the bag housing space 22 side and fitted into the housing space 35 provided in the seat main body 34. The coupling 36 has a cylindrical portion 36a and a flange portion 36b, and has an insertion hole 36c at an axial center position. The cylindrical portion 36a is a substantially cylindrical portion of the accommodation space portion 35. The cylindrical portion 36a is formed to be inserted through the accommodation space 35 of the seat main body 34 substantially without a gap. The flange portion 36b is a portion that bulges radially outward at one axial end side of the cylindrical portion 36 a. The flange portion 36b is formed to fit into the stepped portion 35a of the accommodation space portion 35. The insertion hole 36c is formed by a through hole penetrating in the axial direction of the connector 36. As shown in fig. 1, 2 and the like, the connecting member 36 is formed of: the connecting member 36 can be attached to the bag 100 by inserting the portion of the bag 100 that binds the fluid non-housing portion 104 into the insertion hole 36 c.

As shown in fig. 2 and the like, the plate 50 is a substantially disk-shaped body having a certain thickness. The plate 50 is disposed above the fluid introduced into the container 20 in a state of being contained in the bag 100 via a scraper 60 described later. The plate 50 may be made of a synthetic resin such as polyethylene, polystyrene, or polypropylene, or a material such as rubber. The plate 50 may be formed of a material having flexibility, such as a non-foamed resin material or a separate foam body, such as foamed polyethylene or foamed synthetic rubber. The plate 50 is formed to have an outer diameter slightly larger than the inner diameter of the container 20.

The bottom surface 50a of the plate 50 is formed in a shape corresponding to the top surface 34b of the seat main body 34. Specifically, the bottom surface 50a is formed such that: the plate 50 is inclined downward toward the center side from a predetermined position on the radially outer side (a radial intermediate position in the present embodiment) over the entire circumference thereof. Thus, the plate 50 has a shape having a protruding portion 52 protruding in a truncated cone shape on the bottom surface 50a side.

A mounting hole 54 is formed in a substantially central portion in the radial direction of the plate 50. The mounting hole 54 penetrates in the thickness direction of the plate 50. The mounting hole 54 is formed in a tapered shape corresponding to a suction port 76x of the pump 70 described later in detail. The suction port 76x of the pump 70 is inserted into the mounting hole 54 and fitted to each other, whereby the plate 50 and the pump 70 are detachably joined to each other. Further, the joint portion of the plate 50 and the pump 70 may be brought into a sealed state by sandwiching a seal member such as an O-ring between the two.

The scraper 60 has an annular portion 62 and a curved portion 64. The annular portion 62 is an annular plate-like portion. The outer diameter of the annular portion 62 is formed to be substantially the same as or slightly smaller than the inner diameter of the container 20. Therefore, when scraper 60 is disposed in container 20 in a posture in which annular portion 62 is substantially parallel to the bottom surface of container 20, a gap is hardly formed between inner circumferential surface 20a of container 20 and the outer edge portion of annular portion 62. The annular portion 62 has an opening 66 at the radial center side. The opening 66 is opened to a size that allows the protrusion 52 of the plate 50 to be fitted therein.

The bent portion 64 is a portion formed by bending the outer edge portion of the annular portion 62 in the thickness direction of the blade 60. The bent portion 64 is a portion extending along the inner peripheral surface 20a of the container 20 in a state where the scraper 60 is disposed such that the annular portion 62 is substantially parallel to the bottom surface of the container 20. When the fluid pressure feed device 10 is used, the scraper 60 is configured to be in the following state: the curved portion 64 faces the bottom surface side of the container 20, and the annular portion 62 is placed above the bag 100 that has been introduced into the container 20.

The pump 70 pumps and pressure-feeds the fluid contained in the bag 100 disposed in the container 20. The pump 70 is a rotary positive displacement pump. In the present embodiment, a uniaxial eccentric screw pump as shown in fig. 4 is used as the pump 70. The pump 70 has: a male screw type rotor 72 that eccentrically rotates by receiving power, and a female screw type stator 74 having an inner peripheral surface. The pump 70 is constituted: a pump mechanism 75, which is mainly composed of the rotor 72 and the stator 74, is incorporated in the pump housing 76.

The rotor 72 is a metal shaft body formed with n-1 male threads (n ≧ 2: n ═ 2 in the present embodiment). The rotor 72 is formed of: the cross-sectional shape of the sheet is substantially perfect circular when viewed from any position in the longitudinal direction. The stator 74 is a member having a substantially cylindrical shape and n (n is 2 in the present embodiment) female screw shapes formed on an inner peripheral surface thereof. The through-hole 80 of the stator 74 is formed as: when viewed at any position in the longitudinal direction of the stator 74, the sectional shape (opening shape) thereof is substantially elliptical.

The rotor 72 is inserted through a through hole 80 formed in the stator 74, and is capable of freely eccentrically rotating inside the through hole 80. The base end side end portion of the rotor 72 is connected to a motor 86 as a driving source via an eccentric rotation portion 85. The eccentric rotation portion 85 is a portion for connecting a drive shaft connected to the motor 86 side and the rotor 72 to each other so as to be capable of transmitting power, and is constituted by a conventionally known universal joint or the like.

When the rotor 72 is inserted into the stator 74, the outer peripheral surface of the rotor 72 and the inner peripheral surface of the stator 74 are in close contact with each other at their tangents, thereby forming a fluid transfer passage 82 (cavity). The fluid transfer path 82 is formed to extend spirally in the longitudinal direction of the stator 74 or the rotor 72.

The pump housing 76 is formed: an end bolt 76c is attached to one end side in the longitudinal direction of the metal cylindrical case main body 76a via a stay bolt 76 b. In the pump housing 76, a pump mechanism 75 is provided in a sandwiched state between the housing main body 76a and the end bolt 76c, and the main part of the pump mechanism 75 is constituted by the rotor 72 and the stator 74. The case main body 76a is provided with a screw joint 76d provided so as to communicate with the internal space of the pump case 76, and a plug 76e attached to the screw joint 76 d. The plug 76e is attached so as to close the screw joint 76d during normal operation, but after the bag 100, the plate 50, or the like is placed in the container 20, for example, the plug 76e may be appropriately removed to open the screw joint 76d in order to perform a work such as purging air remaining below the plate 50 (bag 100 side) or in the pump 70.

The pump 70 can advance the fluid transfer path 82 in the longitudinal direction in the stator 74 by rotating the rotor 72 in the through hole 80 of the stator 74. Therefore, by rotating the rotor 72, the viscous liquid can be sucked into the fluid feed passage 82 from one end side of the stator 74 and fed to the other end side of the stator 74. Further, by switching the rotation direction of the rotor 72, the traveling direction of the fluid transfer path 82 can be switched. In the present embodiment, in the normal use state, the rotation direction of the rotor 72 is defined so that the opening provided in the end bolt 76c of the pump housing 76 functions as the suction port 76x and the opening formed in the outer peripheral surface of the housing main body 76a functions as the discharge port 76 y. The end bolt 76c has a tapered shape corresponding to the mounting hole 54 of the plate 50, at a portion functioning as the suction port 76 x.

As shown in fig. 1 and the like, the pump 70 is in a posture in which a suction port 76x provided at an end of the end bolt 76c is directed toward a lower end side, and is fixed to an arm 94 of the lifting device 90. Therefore, by disposing the container 20 containing the viscous liquid below the arm 94 and moving the arm 94 in the vertical direction, the suction port 76x of the pump 70 can be moved relative to the container 20 in the axial direction (height direction) in the container 20.

As shown in fig. 1 and the like, the lifting device 90 includes a column 92, an arm 94, and the like. The support 92 is erected in the up-down direction. The support 92 has a lifting mechanism (not shown) built therein. The arm 94 is provided to project toward the side of the pillar 92. The pump 70 is attached to the arm 94 in a posture in which the suction port 76x faces downward and extends in the vertical direction along the support 92. When the container 20 is disposed at a predetermined position with the pump 70 attached to the arm 94, the opening region of the container 20 and the opening region of the suction port 76x are in a substantially aligned state at their axial center positions as shown by the two-dot chain line in the figure. Therefore, the lifting device 90 can change the height of the suction port 76x with respect to the container 20 in the vertical direction at the axial center position of the container 20 and the suction port 76x by operating the lifting mechanism to raise or lower the arm 94. The lifting device 90 can lower the pump 70 so that the suction port 76x approaches the bottom of the container 20 in conjunction with the decrease in the remaining amount of the fluid stored in the container 20.

Operation of fluid pressure feeding device 10

Next, the operation of the fluid pressure feeding apparatus 10 will be described. As shown in fig. 1, when a fluid is pressure-fed using the fluid pressure-feeding device 10, first, the fluid is introduced into the container 20 in a state of being stored in the bag 100. At this time, the seat 30 is disposed inside the container 20 in advance. On the other hand, when the bag 100 is not stored in the container 20, the bag 100 and the fluid are appropriately adjusted in form by rolling the bag 100 on a floor or the like, so that the bag 100 can be stored in the container 20. In addition, the connector 36 is installed at the fluid non-receiving portion 104 of the bag 100. Then, the bag 100 is introduced into the container 20 in a posture in which the fluid non-housing portion 104 side faces the bottom side of the container 20 and is arranged on the seat main body 34, while the fluid non-housing portion 104 and the connector 36 are inserted into the housing space portion 35 provided at substantially the center of the seat main body 34. As a result, as shown in fig. 1, the bag 100 is housed in the container 20 in a posture in which the fluid housing portion 102 faces the opening side (upper side in the illustrated state) of the container 20.

After the bag 100 is introduced into the container 20 as described above, as shown in fig. 5 and 10, an opening 106 for an insertion port as the suction port 76x of the pump 70 is formed in the bag 100. Opening 106 is formed in fluid storage section 102 of bag 100 at the axial center position of container 20 in accordance with the outer diameter of suction port 76 x. The opening 106 can be formed by cutting the bag 100 with a cutter 110 or the like, for example. Further, the opening 106 may be formed at a predetermined position and a predetermined size by appropriately measuring the size or the like, but an auxiliary tool 112 such as an auxiliary plate or a stencil for forming the opening 106 may be separately prepared and formed by using the auxiliary tool.

When the opening 106 is formed in the bag 100, the scraper 60 is disposed above the bag 100. The scraper 60 is disposed in a posture in which the ring portion 62 is substantially parallel to the bottom surface of the container 20 and the bent portion 64 protrudes toward the bottom surface side of the container 20. When the scraper 60 is disposed above the bag 100, the plate 50 is disposed above the scraper 60. The plate 50 is disposed so that the bottom surface 50a faces the blade 60 side and the protruding portion 52 enters the opening 66 provided in the blade 60.

When the state in which the scraper 60 and the plate 50 are disposed above the bag 100 is formed as described above, the pump 70 is connected to the plate 50. Specifically, as shown in fig. 6, in a state where the plate 50 is disposed above the scraper 60, the pump 70 is lowered toward the container 20 by the elevating device 90, whereby the suction port 76x is inserted into the mounting hole 54 of the plate 50. Thereby, the following state is formed: that is, as shown in fig. 7, the pump 70 and the plate 50 are connected to each other in a state ready for sucking and pumping the fluid stored in the bag 100 by the fluid pumping device 10.

When the preparation operation of the fluid pressure-feeding apparatus 10 is completed as described above, the fluid can be sucked from the bag 100 and pressure-fed by operating the pump 70. As shown in fig. 8, when the fluid pumping device 10 pumps and pumps fluid, the lifting device 90 is operated accordingly, so that the pump 70 is moved toward the bottom side (in the example, downward) of the container 20. At the same time as the pump 70 moves, the plate 50 and the squeegee 60 also move (descend in the example of the figure). The pressing force acts on the bag 100 along with the movement of the plate 50. In addition, as the scraper 60 moves, the vacant part of the bag 100 generated by the suction of the fluid is pushed by the bent portion 64 of the scraper 60, and a wrinkle portion 108 is formed along the inner peripheral surface 20a of the container 20. When the suction and pressure-feed of the fluid are further performed, as shown in fig. 9, the bellows portion 108 is pushed into the peripheral space 38 formed between the seat portion 30 and the container 20. Thus, the empty portion of the bag 100 generated by the suction of the fluid becomes the wrinkled portion 108 and is accommodated in the peripheral space 38. Therefore, even if a vacant portion is formed in the bag 100 by the suction of the fluid, the suction of the fluid by the pump 70 can be continued while the pressing force is applied to the bag 100 by the plate 50. When the suction of the fluid is performed in this manner, as shown in fig. 9 and 10, the plate 50 eventually reaches near the bottom of the container 20, and the suction of the fluid ends.

As described above, the fluid pressure-feeding device 10 of the present embodiment is configured such that: in a state where the bag 100 is introduced into the container 20 and the plate 50 is disposed above the bag 100, the fluid can be pumped and delivered under pressure by the pump 70 through the opening 106 formed in the bag 100 while applying a pressing force to the bag 100 through the plate 50. In the fluid pressure delivery device 10, the seat portion 30 is provided on the bottom side of the container 20, and the storage space portion 35 is provided so as to be open at a substantially central portion (substantially axial center position) of the seat portion 30. Thus, the fluid non-housing portion 104 can be housed in the housing space portion 35 by introducing the bag 100 into the container 20 in a posture in which the fluid housing portion 102 faces the open end side of the container 20 and the fluid non-housing portion 104 faces the bottom side of the container 20. With such a configuration, the following can be suppressed: that is, in the fluid pressure feeding device 10, the fluid non-housing portion 104 may become an obstacle when a pressing force is applied to the bag 100 by the plate 50 or fluid is sucked by the pump 70.

To explain in more detail, if the seat section 130 having no housing space section 35 is used for the fluid pressure-feeding device 10 instead of the seat section 30, a considerable amount of fluid remains on the side even when the fluid is pumped until there is almost no gap between the end section on the suction port 76x side of the pump 70 and the fluid non-housing section 104 of the bag 100, as shown in fig. 11. However, as in the above-described embodiment, by configuring such that the bag 100 can be placed on the top surface 34b of the seat portion 30 and the fluid non-storage portion 104 can be released to the lower side (the bottom side of the container 20) than the top surface 34b, it is possible to suppress the fluid non-storage portion 104 from becoming an obstacle to the suction of the fluid. Therefore, according to the fluid pressure-feeding device 10, the fluid stored in the container 20 can be pumped up and pressure-fed until the remaining amount of the fluid becomes sufficiently small.

In addition, the following is assumed: that is, unlike the case where the fluid is stored in the vicinity of the binding portion 105 as shown in fig. 12 (a), the bag 100 is a case where the fluid is stored only in a portion that is still some distance away from the binding portion 105 or the like as shown in fig. 12 (b), and a margin 107 is formed between the binding portion 105 and the liquid surface. When such a bag 100 is used, the housing space portion 35 may be formed in a size and shape capable of housing the empty space portion 107 in addition to the bundling portion 105 formed in the fluid non-housing portion 104. Thus, even when the bag 100 having the empty portion 107 is used, the fluid can be pumped up and pumped until the remaining amount is sufficiently small.

As described above, the housing space portion 35 of the fluid pressure-feeding device 10 is provided at the center portion of the seat portion 30. Therefore, the fluid pressure-feeding device 10 can accommodate the fluid non-accommodation portion 104 in the accommodation space portion 35, and can arrange the bag 100 in the container 20 with good balance. In the present embodiment, the storage space portion 35 is disposed in a substantially cylindrical shape at the center portion (substantially axial position) of the seat portion 30, but the arrangement and shape of the storage space portion 35 may be appropriately changed depending on the shape, position, and the like of the fluid non-storage portion 104, for example.

As described above, the fluid pressure feeding device 10 is formed in a shape in which the top surface side of the seat portion 30 is recessed in a tapered shape toward a position facing the suction port 76x of the pump 70. Therefore, the liquid contained in the bag 100 becomes easy to gather toward the area on the extension line of the suction port 76x of the pump 70 as much as possible, and accordingly becomes easy to be sucked by the pump 70. This can further improve the efficiency of drawing out the liquid contained in the bag 100. In the present embodiment, the top surface side of the seat section 30 is recessed in a tapered shape, but for example, the top surface of the seat section 30 may be formed in a flat shape.

As described above, the fluid pressure-feed device 10 is preferably: the suction port 76x of the pump 70 is operated so as to be close to the bottom of the container 20 in conjunction with the reduction in the remaining amount of liquid, and the storage space portion 35 is provided on an extension line of the relative movement direction of the container 20 and the suction port 76x with respect to the suction port 76 x.

As in the fluid pressure-feeding device 10 of the present embodiment, when the bag 100 is disposed in the container 20 with the fluid non-housing portion 104 directed to the bottom side of the container 20 and the pressing force is applied to the bag 100 by the plate 50 or the like, the fluid tends to be accumulated in the fluid non-housing portion 104. In the present embodiment, since the housing space portion 35 is provided on the extension line of the suction port 76x, the fluid that tends to be accumulated toward the fluid non-housing portion 104 can be smoothly sucked and pressure-fed. Therefore, according to the fluid pressure-feeding device 10, the fluid can be sucked from the bag 100 and pressure-fed until the remaining amount becomes sufficiently small.

In the present embodiment, as an example of a configuration in which the container 20 and the suction port 76x are relatively moved in conjunction with the decrease in the remaining amount of the liquid so that the suction port 76x of the pump 70 is close to the bottom of the container 20, an example in which the container 20 is fixed at a predetermined position and the pump 70 is movable in the axial direction by the elevating device 90 is shown, but the present invention is not limited to this. For example, the pump 70 may be fixed at a predetermined position so that the container 20 can be moved closer to or away from the pump 70, or both the container 20 and the pump 70 may be moved so as to be moved relatively closer to each other in conjunction with the decrease in the remaining amount of liquid.

As described above, the fluid pressure feeding apparatus 10 is configured such that: a peripheral space 38 is provided between the outer peripheral surface 34a of the seat 30 and the inner peripheral surface 20a of the container 20, and the peripheral space 38 extends in the axial direction of the container 20 and is open toward the accommodation space 35. Therefore, in the fluid pressure delivery device 10, the void portion formed in the bag 100 accompanying the suction of the fluid can be released to the peripheral space 38 side. Further, in the fluid pressure feeding device 10 of the present embodiment, the scraper 60 is provided, and the effect of pushing the void portion formed in the bag 100 accompanying the suction of the fluid into the peripheral space 38 can be expected by the curved portion 64 provided in the peripheral portion. Therefore, in the fluid pressure delivery device 10, the following possibility can be reduced: the possibility of fluid suction being hindered due to the presence of the void portion formed in the bag 100 accompanying fluid suction. Therefore, according to the fluid pressure-feeding device 10, it is possible to minimize the decrease in the fluid suction efficiency due to the presence of the void portion formed in the bag 100, the increase in the remaining fluid amount due to incomplete suction, and the like.

In the present embodiment, the example in which the peripheral space 38 is formed between the outer peripheral surface 34a of the seat 30 and the inner peripheral surface 20a of the container 20 is shown, but the fluid pressure-feeding device 10 may not be formed with the peripheral space 38. In the present embodiment, an example is shown in which the scraper 60 having the curved portion 64 is used in anticipation of the effect of pushing the void portion of the bag 100 into the peripheral space 38, but the present invention is not limited to this. Specifically, the fluid pressure feeding device 10 may be configured to include no scraper 60, a scraper 60 having no bend 64 or the like and having a low or unexpected effect of pushing the void portion of the bag 100 into the peripheral space 38, or a configuration capable of pushing the void portion of the bag 100 into the peripheral space 38 instead of or together with the bend 64.

As described above, the fluid pressure-feeding apparatus 10 can attach the connector 36 to the fluid non-housing section 104 in the bundled state, and insert the connector 36 while housing the fluid housing section 102 in the housing space section 35. Therefore, in the fluid pressure delivery device 10, the fluid non-housing portion 104 can be positioned and housed in the housing space portion 35 with high accuracy. Therefore, in the fluid pressure-feeding device 10, the fluid non-housing portion 104 can be prevented from being an obstacle when the fluid is sucked, and the amount of fluid sucked into the bag 100 can be minimized. In addition, although the example in which the coupling 36 is provided is shown in the present embodiment, the fluid pressure feeding device 10 may be configured not to include the coupling 36, or may be configured to position and store the fluid non-storage section 104 in the storage space section 35 with high accuracy instead of or together with the coupling 36, for example.

As described above, the bag 100 according to the present embodiment is in a state in which the fluid non-housing portions 104 are bundled and fixed in a rod shape. Even with the fluid stored in the bag 100 supplied in this state, the fluid pressure-feeding device 10 can suck the fluid from the bag and pressure-feed the fluid until the remaining amount becomes sufficiently small. In addition, although the present embodiment shows an example in which the bag 100 is provided in a state in which the fluid non-housing portion 104 is formed in a rod shape, the bag 100 may be a bag in which the fluid non-housing portion 104 is folded in a bundle shape and fixed by using a member such as a clip, rubber, or a string, or a bag in which the fluid non-housing portion 104 is bundled and tightened, for example.

The present invention is not limited to the embodiments and modifications described above, and other embodiments can be made according to the teachings and spirit of the claims without departing from the scope thereof. The components of the above embodiments may be arbitrarily selected and combined to constitute the embodiments. In addition, any of the components of the embodiments, any of the components described in the means for solving the problems, or any of the components obtained by embodying any of the components described in the means for solving the problems may be combined arbitrarily to constitute the embodiments. These have significance for obtaining rights in a amendment or divisional application or the like of the present application.

[ industrial applicability ]

The fluid pressure-feeding device of the present invention is applicable to all applications in which a fluid is sucked and pressure-fed from a bag having a fluid storage section and a fluid non-storage section.

Claims

1. A fluid pressure feeding device is characterized in that,

comprises a container, a plate and a pump,

the container is used for accommodating a bag containing fluid,

the plate is carried inside the container above the bag,

the pump aspirates the fluid contained in the bag;

the fluid pressure-feeding device is capable of sucking and pressure-feeding the fluid through an opening formed in the bag by the pump while applying a pressing force to the bag through the plate;

the fluid pressure feeding device has a seat portion disposed at a bottom side of the container and capable of forming a housing space portion;

the fluid pressure-feeding device is configured to store the fluid non-storage portion in the storage space portion by storing the bag having the fluid storage portion and the fluid non-storage portion in the container.

2. The fluid pressure-feeding apparatus according to claim 1,

the housing space is provided at a central portion of the seat.

3. The fluid pressure-feeding apparatus according to claim 1 or 2,

the suction ports of the container and the pump are relatively moved in conjunction with the decrease in the amount of liquid to bring the suction port of the pump close to the bottom of the container;

the seat is formed in a shape recessed in a tapered shape toward a position opposite to the suction port.

4. The fluid pressure-feeding apparatus according to any one of claims 1 to 3,

the storage space portion is provided on an extension line of the suction port in a relative movement direction between the container and the suction port.

5. The fluid pressure-feeding apparatus according to any one of claims 1 to 4,

a peripheral space extending in the axial direction of the container and open to a region in which the bag is housed is formed between the outer peripheral surface of the seat portion and the inner peripheral surface of the container.

6. The fluid pressure-feeding apparatus according to any one of claims 1 to 5,

the fluid pressure feeding device has a connector that is insertable into the housing space portion;

the connector may be attached to the fluid non-housing portion in a state in which the fluid non-housing portion is bundled.

7. The fluid pressure-feeding apparatus according to any one of claims 1 to 6,

the bag is formed in a rod-like shape by bundling the fluid non-receiving portions, and is received in the container in a posture in which the rod-like portion faces a bottom side of the container.