TW202117184A - Fluid pressure-feeding device - Google Patents

Abstract

A purpose of the present invention is to provide a fluid pressure-feeding device that can pump out and pressure-feed a pumping fluid from a bag in which said fluid is housed, leaving a sufficiently small amount remaining, even when said bag has a fluid-housing section and a non-fluid-housing section. A fluid pressure-feeding device has: a container that houses a bag; a plate that is mounted in the interior of the container, above the bag; and a pump that suctions a fluid housed in the bag. It is possible to use the pump to suction and pressure-feed the fluid via an opening formed in the bag, while applying a pressing force to the bag via the plate. There is a seat section that is positioned on the bottom side of the container and can form a storage space section. By having a bag that has a fluid-housing section and a non-fluid-housing section be housed in the container as the bag, the non-fluid-housing section can be housed in the storage space section.

Description

Fluid pressure delivery device

The present invention relates to a fluid pressure delivery device.

At present, the pumping device disclosed in Patent Document 1 below is suitable for pressurizing and conveying high-viscosity fluids. The pumping device of Patent Document 1 described below is equipped with a uniaxial eccentric screw pump, and even if the fluid has characteristics such as high viscosity that are difficult to be pumped by other pumps, it can control pulsation to a minimum and pump with a desired discharge amount. Prior Art Document Patent Document

Patent Document 1: Japanese Patent Application Laid-Open No. 2008-267307

In the pumping device or the like of Patent Document 1, the fluid to be pumped can be arranged in a container provided in the pumping device or the like in a state of being housed in a bag. Here, the inventors of the present invention have conducted in-depth research and found that there are cases where the bag containing the fluid to be drawn has a fluid storage portion and a fluid non-storage portion, it is difficult to draw the fluid from the bag until the remainder is left. The amount becomes sufficiently small.

Therefore, the object of the present invention is to provide a fluid pressure feeding device that can be sucked from the bag and pressed even if a bag containing a fluid to be sucked has a fluid storage portion and a fluid non-accommodating portion Feed fluid until the remaining volume becomes sufficiently small.

(1) The fluid pressure feed device of the present invention provided in order to solve the above-mentioned problems is characterized by comprising: a container for accommodating a bag containing fluid, and the container is placed above the bag inside the container The plate, and a pump that sucks the fluid contained in the bag; the fluid pressure feeding device can apply a pressing force to the bag via the plate while using the pump to pass through the pump formed in the bag The opening on the upper side sucks and pressure-feeds the fluid; the fluid pressure-feeding device has a seat that is arranged on the bottom side of the container and can form a storage space; The bag is accommodated in the container, so that the fluid non-accommodating part can be accommodated in the accommodating space part.

The fluid pressure-feeding device of the present invention is configured to be capable of being formed on the bag by a pump while applying a pressing force to the bag via the plate while putting a bag containing fluid in the container and arranging a plate above the bag The opening sucks and pumps fluid. Here, in the fluid pressure feeding device of the present invention, the seat portion provided on the bottom side of the container is configured to form a storage space portion that can accommodate the fluid non-accommodating portion where the fluid is not contained in the bag. Therefore, the fluid pressure delivery device of the present invention can suppress the following situations by accommodating the part of the bag that forms the fluid non-accommodating part in the accommodating space part: for example, when pressing force is applied to the bag by a plate or pumping fluid by a pump When the fluid non-accommodating part becomes an obstacle, this situation. Therefore, according to the present invention, it is possible to provide a fluid pressure-feeding device that can remove liquid from the bag even if the liquid is placed in a container in a state of being contained in a bag having a fluid containing portion and a fluid non-containing portion. The fluid is sucked and pumped until the remaining volume becomes sufficiently small.

(2) In the fluid pressure feed device of the present invention described above, it is preferable that the storage space portion is provided in the center portion of the seat portion.

According to this structure, the fluid non-accommodating part can be accommodated in the accommodating space part, and the bag can be arrange|positioned stably in the inside of a container. Thereby, for example, when a pressing force is applied to the bag by a plate or fluid is sucked by a pump, it is possible to further prevent the fluid non-accommodating portion from becoming an obstacle, and it is possible to suppress the suction margin of the fluid in the bag to a minimum.

(3) In the fluid pressure delivery device of the present invention described above, it is preferable that: the container and the suction port of the pump move relative to each other in a manner that is linked with the reduction of the remaining amount of liquid, so that the suction of the pump The mouth is close to the bottom of the container; the seat is formed into a shape recessed into a cone shape toward a position opposite to the suction mouth.

According to this structure, the liquid contained in the bag becomes easy to gather at a position opposite to the suction port of the pump and located on the extension line of the relative movement direction of the container and the suction port, and it is easy to suck with the pump to a corresponding extent. Thereby, it is possible to further improve the suction efficiency of the liquid contained in the bag.

(4) In the fluid pressure delivery device of the present invention described above, it is preferable that: the container and the suction port of the pump move relative to each other in linkage with the reduction of the remaining amount of liquid, so that the suction of the pump The mouth is close to the bottom of the container; the storage space portion is provided on an extension line of the relative movement direction of the container and the suction mouth in a manner opposite to the suction mouth.

In the fluid pressure feeding device of the present invention, the fluid contained in the fluid storage portion of the bag tends to collect toward the fluid non-accommodating portion due to, for example, the influence of the pressing force applied from the plate to the bag. In addition, in the fluid pressure feed device of the present invention, a storage space is provided on the extension line of the relative movement direction of the container and the suction port so as to face the suction port, so that the fluid collected in the container can be sucked and pressure fed smoothly. The fluid on the side of the non-accommodating part. Therefore, according to the fluid pressure delivery device of the present invention, even when the fluid is stored in a bag having a fluid storage portion and a fluid non-accommodating portion and is prepared in a container, the fluid can be pumped from the bag and pressure delivered. Until the margin becomes sufficiently small.

Here, as described above, in the case where fluid is sucked from the bag while applying a pressing force to the bag through the plate placed above the bag inside the container, as the fluid suction progresses, the fluid storage portion The part (void part) vacated by the fluid being sucked gradually increases. When there is a gap between the fluid remaining in the fluid storage portion and the plate, for example, as the gap increases, the pressing force of the plate becomes difficult to apply to the fluid, which may cause damage to the fluid. The suction efficiency or the amount of fluid remaining due to incomplete suction is affected. Therefore, in the fluid pressure feed device of the present invention described above, it is desired that even if the void portion of the fluid storage portion is formed, its influence on the fluid suction efficiency, the suction margin, and the like can be minimized.

(5) Based on this finding, it is preferable that the fluid pressure feed device of the present invention is formed between the outer peripheral surface of the seat and the inner peripheral surface of the container, which extends in the axial direction of the container and faces the storage space. The area surrounding the bag is open to the peripheral space.

According to this structure, even if a void portion that is vacated by the fluid being sucked is formed in the fluid storage portion as the fluid is sucked, the void portion can be released to the outer peripheral surface of the seat and the inner periphery of the container. In the peripheral space formed between the faces. With this, it is possible to minimize the decrease in the suction efficiency of the fluid due to the existence of the void portion formed in the fluid storage portion, or the increase in the residual fluid remaining due to incomplete suction.

(6) In the fluid pressure delivery device of the present invention described above, it is preferable to have a connector that can be inserted into the accommodating space portion, and the connector can be installed in a state where the fluid non-accommodating portion is bundled On the fluid non-accommodating part.

According to this structure, for example, when storing the bag in a container, by attaching the connector to the fluid non-accommodating part in a state where the fluid non-containing part is bound, the fluid storage part is stored in the storage space while connecting The component is inserted, so that the fluid non-accommodating part can be accurately positioned and arranged in the accommodating space part. Thereby, it is possible to prevent the fluid non-accommodating portion from becoming an obstacle during fluid suction, and it is possible to minimize the suction margin of the fluid in the bag.

(7) In the fluid pressure feed device of the present invention described above, it is preferable that the bag is in a state where the fluid non-accommodating portion is bundled to form a rod shape, and the rod-shaped portion faces the The posture of the bottom side of the container is accommodated in the container.

According to the fluid pressure feeding device of the present invention, even if the fluid is contained in a bag in which the fluid non-accommodating portion is bundled to form a rod shape, the fluid can be sucked from the bag and pressed and fed until the remaining amount becomes sufficiently small. (Inventive effect)

According to the present invention, it is possible to provide a fluid pressure-feeding device which is capable of sucking fluid from the bag and pressure-feeding the fluid even if the bag containing the fluid to be sucked has a fluid storage portion and a fluid non-accommodating portion. The amount becomes sufficiently small.

Hereinafter, the 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 structure 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. "About the composition of the fluid pressure feed device 10"

As shown in FIG. 1, the fluid pressure feeding device 10 is roughly configured to include a container 20, a seat portion 30, a plate 50, a scraper 60, a pump 70, and an elevating device 90. The fluid pressure feeding device 10 is formed such that by arranging the bag 100 containing the fluid inside the container 20, it is possible to apply a pressing force to the bag 100 through the plate 50 and the scraper 60 arranged above the bag 100 while using the pump 70 to remove the pressure from the bag 100. The bag 100 sucks and pumps fluid. In addition, the fluid pressure feeding device 10 is configured to be able to raise or lower the pump 70 by the lifting device 90 according to the remaining amount of fluid. Hereinafter, the configuration of each part of the fluid pressure feeding device 10 will be described in further detail.

The container 20 may be, for example, a bottomed cylindrical container such as a so-called pail can or a drum can, or a cylindrical container penetrating in the vertical direction. In this embodiment, a bottomed cylindrical container is used as the container 20. The container 20 is formed such that the closed portion on one side in the axial direction is the bottom, and the bag 100 containing the fluid can be introduced from the open portion provided on the other end side in the axial direction and arranged inside. In the fluid pressure feed device 10, the container 20 can be arranged at a position adjacent to and on the lower end side of the pillar 92 constituting the lifting device 90.

Here, the bag 100 housed in the container 20 is made of, for example, polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), nylon (NY), cellophane (PT), etc. A film made of a resin material is formed by molding. As shown in FIG. 12, the bag 100 is provided in a state in which fluid is accommodated and sealed. The bag 100 has a fluid containing portion 102 (the portion drawn with diagonal lines in the figure) and a fluid non-containing portion 104. The fluid storage portion 102 is an area in the bag 100 that stores the fluid to be pressure-feeding. In addition, the fluid non-accommodating portion 104 is a portion that does not accommodate fluid but seals fluid or the like.

The bag 100 can be provided in any form. For example, the part forming the fluid non-containment part 104 can be sealed by heat sealing, and the part forming the fluid non-containment part 104 can be bundled and bundled with a riveting material to seal it. Or a form in which the part forming the fluid non-accommodating portion 104 is wound into a rod shape with a tape or the like, and then bundled and sealed. That is, the bag 100 has a sealing portion 105 at the fluid non-accommodating portion 104, and the sealing portion 105 is sealed by heat sealing, or using a binding tape, rubber tape, sealing tape, rope, wire, rivet, etc. to make. Since the bag 100 is sealed at the sealing portion 105 provided in the fluid non-accommodating portion 104 as described above, even if the fluid non-accommodating portion 104 faces the bottom side of the container 20 from the opening portion provided on the upper end side of the container 20 When introduced into the container 20, the fluid does not leak from the bag 100. In addition, the fluid contained in the bag 100, such as a high-viscosity fluid, may not be deformed into a shape imitating the shape of the fluid containing portion 102 when it is simply introduced into the container 20. In general, by rolling the bag 100 on the ground before being introduced into the interior of the container 20, etc., the shape of the fluid storage portion 102 is flattened so as to enter the interior of the container 20, thereby making the bag 100 changeable. shape.

In addition, the fluid contained in the bag 100 is not limited to, for example, a low-viscosity liquid with low viscosity, and may be a high-viscosity liquid with high viscosity. In addition, the fluid may be, for example, a moisture-curable adhesive that contains raw materials such as cyanoacrylates and silicone rubbers and is cured by reacting with moisture in the air, or contains raw materials such as acrylics (acrylic resins) and penetrates Anaerobic curing adhesives that are cured by isolating the air, and ultraviolet curing adhesives that contain acrylic resins, epoxy resins and other raw materials and are cured by irradiating ultraviolet rays.

As shown in FIGS. 1 and 2, etc., the seat portion 30 is a member disposed on the bottom side of the container 20. As shown in FIG. 3 and the like, the seat portion 30 has a seat portion main body 34 and a connector 36, and forms a storage space portion 35.

As shown in FIGS. 1 and 2, etc., the seat main body 34 is a part that serves as a seat for the bag 100 inside the container 20. The height of the seat main body 34 is lower than the height of the container 20. Therefore, when the seat main body 34 is arranged inside the container 20, a bag storage space 22 in which the bag 100 can be stored is formed above the seat main body 34. In addition, the outer diameter of the seat main body 34 is smaller than the inner diameter of the container 20. Therefore, when the seat main body 34 is arranged 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 of the container 20 (the up-down direction in the illustrated example), and is open toward the bag storage space 22 located above the seat main body 34.

As shown in FIG. 3, the seat main body 34 is formed in a shape in which the top surface 34b (the surface on the side of the bag storage space 22) is recessed in a tapered shape. That is, the seat main body 34 is formed so as to be inclined downward toward the center from a predetermined position on the outer side in the radial direction (in this embodiment, the middle position in the radial direction) over the entire circumference. The seat body 34 is provided with a storage space 35 that can store the fluid non-storage portion 104 of the bag 100. The storage space 35 is formed on the top surface 34b of the seat main body 34 to open toward the bag storage space 22 side. The accommodating space 35 exists on an extension line of the relative movement direction of the container 20 and the suction port 76x so as to face the suction port 76x of the pump 70 described in detail later. The storage space portion 35 is formed as a hollow portion extending in the axial direction of the container 20 (the vertical direction in the illustrated state). In this embodiment, the storage space 35 is formed as a through hole penetrating the seat main body 34. A step portion 35a is provided at the opening end of the storage space portion 35 (the end portion on the side of the bag storage space 22), and the step portion 35a is formed in a stepped shape so that the flange portion 36b of the connector 36 described in detail later can be inserted. .

The connector 36 is a member that can be inserted from the side of the bag storage space 22 and fitted into the storage space 35 provided on the seat main body 34. The connector 36 is a member which has a cylindrical part 36a and a flange part 36b, and has the insertion hole 36c at the axial center position. The cylindrical portion 36a is a portion of the storage space portion 35 formed in a substantially cylindrical shape. The cylindrical portion 36a is formed as a storage space 35 that can be inserted into the seat main body 34 substantially without a gap. The flange portion 36b is a portion that bulges outward in the radial direction on one end side in the axial direction of the cylindrical portion 36a. The flange portion 36b is formed so as to be fitable in the step portion 35a of the storage space portion 35 described above. The insertion hole 36c is formed by a through hole penetrating in the axial direction of the connector 36. As shown in FIGS. 1 and 2, etc., the connector 36 is formed so that the connector 36 can be attached to the bag 100 by inserting the portion of the tying fluid non-accommodating portion 104 of the bag 100 into the insertion hole 36 c.

As shown in FIG. 2 and the like, the plate 50 is a substantially disc-shaped body having a certain thickness. The plate 50 is disposed above the fluid introduced into the container 20 in a state of being loaded into the bag 100 via a scraper 60 described in detail later. The plate 50 can be formed of, for example, a synthetic resin such as polyethylene, polystyrene, polypropylene, or a raw material such as rubber. In addition, the plate 50 may be formed of a non-foamed resin material, or a flexible material such as closed cells such as foamed polyethylene and foamed synthetic rubber. The plate 50 is formed to have an outer diameter slightly larger than the inner diameter of the container 20 by this degree.

The bottom surface 50 a of the plate 50 is formed in a shape corresponding to the top surface 34 b of the seat main body 34. Specifically, the bottom surface 50 a is formed to incline downward toward the center from a predetermined position on the radially outer side (in this embodiment, the radially intermediate position) over the entire circumference of the plate 50. Thereby, the plate 50 is formed in the shape which has the protrusion part 52 which protrudes in the shape of a truncated cone on the side of the bottom surface 50a.

A mounting hole 54 is formed at a substantially central portion in the radial direction of the plate 50. The mounting hole 54 penetrates in the thickness direction of the board 50. The mounting hole 54 is formed in a tapered shape corresponding to the suction port 76x of the pump 70 described in detail later. By inserting the suction port 76x of the pump 70 into the mounting hole 54 to fit the two, the plate 50 and the pump 70 are detachably joined together. In addition, the joint portion of the plate 50 and the pump 70 can be sealed by sandwiching a seal such as an O-ring between them.

The squeegee 60 has an annular portion 62 and a curved portion 64. The ring portion 62 is a ring-shaped plate-shaped portion. The outer diameter of the ring portion 62 is formed to be approximately the same as or slightly smaller than the inner diameter of the container 20. Therefore, when the scraper 60 is disposed in the container 20 in a posture where the ring portion 62 and the bottom surface of the container 20 are substantially parallel, almost no gap is formed between the inner peripheral surface 20a of the container 20 and the outer edge portion of the ring portion 62. In addition, the ring portion 62 has an opening 66 on the center side in the radial direction. The opening 66 is opened to a size that can fit the protrusion 52 of the plate 50 described above.

The bent portion 64 is a portion formed by bending the outer edge portion of the ring portion 62 in the thickness direction of the squeegee 60. The curved portion 64 is a portion extending along the inner peripheral surface 20 a of the container 20 in a state where the scraper 60 is arranged such that the ring portion 62 is substantially parallel to the bottom surface of the container 20. When the fluid pressure feeding device 10 is used, the scraper 60 is arranged in a state where the curved portion 64 faces the bottom surface side of the container 20 and the ring portion 62 is placed above the bag 100 introduced into the container 20.

The pump 70 sucks and pressure-feeds the fluid contained in the bag 100 arranged in the container 20. The pump 70 is a rotary positive displacement pump. In this embodiment, a uniaxial eccentric screw pump as shown in FIG. 4 is used as the pump 70. The pump 70 has a male-threaded rotor 72 that rotates eccentrically by power, and a female-threaded stator 74 on the inner peripheral surface. The pump 70 is configured such that a pump mechanism 75 whose main part is composed of a rotor 72 and a stator 74 is built in a pump housing 76.

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

The rotor 72 is inserted into the through hole 80 formed in the stator 74 and can freely rotate eccentrically inside the through hole 80. The end portion on the proximal side of the rotor 72 is connected to a motor 86 as a drive source via an eccentric rotating portion 85. The eccentric rotating part 85 is a part that connects the drive shaft connected to the motor 86 side and the rotor 72 to be able to transmit power, and is composed of a universal joint or the like known in the prior art.

When the rotor 72 is inserted into the stator 74, the outer circumferential surface of the rotor 72 and the inner circumferential surface of the stator 74 are in close contact at the tangent line of the two, forming a fluid conveying path 82 (cavity). The fluid transport 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 by attaching an end bolt 76c to one end in the longitudinal direction of a metal cylindrical case main body 76a via a support bolt 76b. 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 composed of a rotor 72 and a stator 74. The housing main body 76a is provided with a threaded joint 76d provided in communication with the internal space of the pump housing 76, and a plug 76e installed on the threaded joint 76d. The plug 76e is installed to close the threaded joint 76d during normal operation. However, for example, after the bag 100 or the plate 50 is placed in the container 20, it remains on the lower side of the plate 50 (the bag 100 side) or in the pump 70 for cleaning. For air and other operations, the plug 76e can be appropriately removed to open the threaded joint 76d.

The pump 70 can cause the fluid transport path 82 to advance 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 conveying path 82 from one end of the stator 74 and conveyed to the other end of the stator 74. In addition, by switching the rotation direction of the rotor 72, the traveling direction of the fluid conveying path 82 can be switched. In this embodiment, under normal use, the opening provided on the end bolt 76c of the pump housing 76 functions as the suction port 76x, and the opening formed on the outer peripheral surface of the casing main body 76a is used as the suction port 76x. The way in which the outlet 76y functions determines the direction of rotation of the rotor 72. In addition, the portion of the end bolt 76c that functions as the suction port 76x is formed in a tapered shape corresponding to the mounting hole 54 of the plate 50 described above.

As shown in FIG. 1 and the like, the pump 70 is fixed to the arm 94 of the lifter 90 with the suction port 76x provided at the end of the end bolt 76c facing the lower end. Therefore, by arranging the container 20 containing the viscous liquid under the arm 94 and operating the arm 94 in the vertical direction, the suction port 76x of the pump 70 can be moved in the axial direction (height direction) of the container 20 with respect to the container 20. ) Perform relative movement.

As shown in FIG. 1 etc., the lifting device 90 has a support column 92, an arm 94, and the like. The pillar 92 is erected in the vertical direction. A lifting mechanism (not shown) is built in the pillar 92. The arm 94 is provided so as to protrude toward the side of the pillar 92. The above-mentioned 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 pillar 92. When the container 20 is arranged at a predetermined position with the pump 70 mounted on the arm 94, as shown by the two-dot chain line in the figure, the axial positions of the opening area of the container 20 and the opening area of the suction port 76x It was roughly anastomosed. Therefore, the lifting device 90 raises or lowers the arm 94 by operating the lifting mechanism, so that the height of the suction port 76x relative to the container 20 can be changed in the vertical direction at the axial position of the container 20 and the suction port 76x. . The lifting device 90 can lower the pump 70 in linkage with the reduction of the remaining amount of fluid contained in the container 20 so that the suction port 76x is close to the bottom of the container 20. "About the operation of the fluid pressure feed device 10"

Next, the operation of the fluid pressure feeding device 10 will be described. As shown in FIG. 1, when the fluid pressure-feeding device 10 is used for pressure-feeding fluid, first, the fluid is introduced into the container 20 in a state of being housed in a bag 100. At this time, the seat 30 is arranged inside the container 20 in advance. On the other hand, when the bag 100 is not stored in the container 20, roll the bag 100 on the floor or the like to adjust the shape of the bag 100 and the fluid so that the bag 100 can be stored in the container 20. . In addition, a connector 36 is installed at the fluid non-accommodating portion 104 of the bag 100. Then, the bag 100 is introduced into the container 20 with the fluid non-storage portion 104 facing the bottom side of the container 20 and placed on the seat main body 34, while the fluid non-storage portion 104 and the connector 36 are inserted into the seat main body 34. In the storage space 35 at the approximate center of the center. Thereby, as shown in FIG. 1, the bag 100 is stored in the container 20 in a posture in which the fluid storage portion 102 faces the opening side (upward side in the state of the figure) of the container 20.

After the bag 100 is introduced into the container 20 as described above, as shown in FIGS. 5 and 10, an opening 106 is formed in the bag 100 as an insertion port of the suction port 76x of the pump 70. The opening 106 is formed in the fluid containing portion 102 of the bag 100 at the axial center position of the container 20 according to the outer diameter of the suction port 76x. The opening 106 can be formed, for example, by cutting the bag 100 with a cutter 110 or the like. In addition, in order to form the opening 106 with a predetermined size at a predetermined position, it may be formed by appropriately measuring the size, etc. However, an auxiliary tool 112 such as an auxiliary board or hollow cardboard for forming the opening 106 may be separately prepared, and the auxiliary tool may be used to form the opening 106. .

When the opening 106 is formed in the bag 100, the scraper 60 is arranged above the bag 100. The scraper 60 is arranged in a posture in which the ring portion 62 is substantially parallel to the bottom surface of the container 20 and the curved portion 64 protrudes toward the bottom surface side of the container 20. In addition, when the squeegee 60 is arranged above the bag 100, the plate 50 is arranged above the squeegee 60. The plate 50 is arranged such that the bottom surface 50 a faces the squeegee 60 side and the protrusion 52 enters the opening 66 provided in the squeegee 60.

When the state where the scraper 60 and the plate 50 are arranged 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 the state where the plate 50 is arranged above the scraper 60, the pump 70 is lowered toward the container 20 by the lifting device 90, thereby inserting the suction port 76x into the mounting hole of the plate 50 54 in. As a result, a state is formed: that is, as shown in FIG. 7, the pump 70 and the plate 50 are connected, and are ready to use the fluid pressure delivery device 10 to suck and pressure the fluid stored in the bag 100.

When the preparation of the fluid pressure delivery device 10 is completed as described above, the fluid can be pumped from the bag 100 and pressure delivered by operating the pump 70. As shown in Fig. 8, when the fluid pressure-feeding device 10 performs suction and pressure-feeding of the fluid, the lifting device 90 operates accordingly, so that the pump 70 is directed toward the bottom side of the container 20 (in the example of the figure, the lower side). )mobile. While the pump 70 moves, the plate 50 and the scraper 60 also move (downward in the example of the figure). Along with the movement of the plate 50, a pressing force is applied to the bag 100. In addition, as the squeegee 60 moves, the vacant portion of the bag 100 caused by the suction of the fluid is pushed by the curved portion 64 of the squeegee 60 to form a corrugated portion 108 along the inner peripheral surface 20 a of the container 20. When the fluid is further sucked and pressed, as shown in FIG. 9, the corrugated portion 108 is pushed into the peripheral space 38 formed between the seat portion 30 and the container 20. Thereby, the vacant part of the bag 100 generated by the suction of the fluid forms the wrinkle part 108 and is accommodated in the peripheral space 38. Therefore, although a vacant portion is formed in the bag 100 due to the suction of the fluid, it is possible to continue the suction of the fluid by the pump 70 while applying a pressing force to the bag 100 by the plate 50. When the fluid is sucked in this way, as shown in Figs. 9 and 10, the plate 50 finally reaches the vicinity of the bottom of the container 20, and the sucking of the fluid ends.

As described above, the fluid pressure feeding device 10 of this embodiment is formed to be able to apply a pressing force to the bag 100 by the plate 50 in a state where the bag 100 is introduced into the container 20 and the plate 50 is arranged above the bag 100. The pump 70 is used to suck and pressurize the fluid through the opening 106 formed in the bag 100. In addition, in the fluid pressure feeding device 10, a seat portion 30 is provided on the bottom side of the container 20, and a storage space portion 35 is provided so as to open at a substantially central portion (approximately axial position) of the seat portion 30. Thereby, the bag 100 can be introduced into the container 20 with the fluid containing portion 102 facing the open end side of the container 20 and the fluid non-containing portion 104 facing the bottom side of the container 20, so that the fluid non-containing portion 104 can be stored in the container 20. The space part 35. With such a configuration, it is possible to suppress the situation that the fluid non-accommodating portion 104 becomes obstructive when a pressing force is applied to the bag 100 by the plate 50 or the fluid is sucked by the pump 70 in the fluid pressure feeding device 10 One situation.

In further detail, it is assumed that in the case where the seat 130 without the storage space 35 is used for the fluid pressure feeding device 10 instead of the seat 30 described above, as shown in FIG. 11, even if the fluid is pumped until the pump There is almost no gap between the end portion of the suction port 76x side of the 70 and the fluid non-accommodating portion 104 of the bag 100, and a considerable amount of fluid remains on the side. However, as shown in the above-mentioned embodiment, the bag 100 is configured to be able to place the bag 100 on the top surface 34b of the seat portion 30 and release the fluid non-accommodating portion 104 to a lower side (the bottom side of the container 20) than the top surface 34b. In this way, it is possible to prevent the fluid non-accommodating portion 104 from becoming an obstacle to fluid suction. Therefore, according to the fluid pressure delivery device 10, the fluid contained in the container 20 can be sucked and pressure delivered until the remaining amount of the fluid becomes sufficiently small.

In addition, assume the following situation: 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 only stores the fluid in the vicinity of the binding portion 105 as shown in FIG. 12(b). In the case where there is some distance from the binding part 105, a vacant part 107 is formed between the binding part 105 and the liquid surface. When using such a bag 100, the accommodating space 35 may be formed in a size and shape capable of accommodating the vacant part 107 in addition to the bundling part 105 formed on the fluid non-accommodating part 104. Thereby, even in the case of using the bag 100 having a vacant portion 107, the fluid can be sucked and pressure-supplied until the remaining amount becomes sufficiently small.

In addition, as described above, the storage space 35 of the fluid pressure feeding device 10 is provided in the center of the seat 30. Therefore, the fluid pressure feed device 10 can store the fluid non-accommodating portion 104 in the storage space portion 35 and can smoothly arrange the bag 100 inside the container 20. In addition, in the present embodiment, an example is shown in which the storage space 35 is arranged in a substantially cylindrical shape at the center portion (approximately the axial center position) of the seat portion 30, but it may be based on the shape of the fluid non-accommodating portion 104, for example. The arrangement and shape of the storage space 35 are appropriately changed with respect to the position and the like.

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 opposed to the suction port 76x of the pump 70. Therefore, the liquid contained in the bag 100 becomes easy to gather as much as possible toward the area on the extension line of the suction port 76x of the pump 70, and it becomes easy to be sucked by the pump 70 to a corresponding extent. Thereby, it is possible to further improve the suction efficiency of the liquid contained in the bag 100. In addition, in the present embodiment, an example is shown in which the top surface side of the seat portion 30 is recessed into a tapered shape, but for example, the top surface of the seat portion 30 may be formed in a flat shape.

As described above, the fluid pressure delivery device 10 preferably operates in conjunction with the reduction of the remaining amount of liquid so that the suction port 76x of the pump 70 is close to the bottom of the container 20 and is opposite to the suction port 76x A storage space 35 is provided on the extension line of the relative movement direction of the container 20 and the suction port 76x.

As in the fluid pressure delivery device 10 of the present embodiment, when the fluid non-accommodating portion 104 is directed to the bottom side of the container 20 and the bag 100 is arranged in the container 20 and pressing force is applied to the bag 100 by the plate 50 or the like, the fluid is The tendency to accumulate in the fluid non-accommodating part 104. In the present embodiment, since the storage space 35 is provided on the extension of the suction port 76x, the fluid that tends to gather to the fluid non-accommodating portion 104 side can be smoothly sucked and pressure-fed. Therefore, according to the fluid pressure feeding device 10 described above, the fluid can be sucked from the bag 100 and pressure delivered until the remaining amount becomes sufficiently small.

In addition, in the present embodiment, as a configuration example in which the container 20 and the suction port 76x are relatively moved so that the suction port 76x of the pump 70 and the bottom of the container 20 approach the bottom of the container 20 in conjunction with the reduction of the remaining amount of liquid, there is shown An example in which the container 20 is fixed at a predetermined position and the pump 70 can be moved in the axial direction by the lifting device 90 is provided, but the present invention is not limited to this. For example, it may be configured to fix the pump 70 at a predetermined position and allow the container 20 to approach or move away from the pump 70, or it may be configured to allow both the container 20 and the pump 70 to move and to be linked with a reduction in the amount of liquid. Move relative to each other.

In addition, as described above, the fluid pressure feed device 10 is formed to have a peripheral space 38 between the outer peripheral surface 34a of the seat portion 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 it opens toward the storage space 35. Therefore, in the fluid pressure feed device 10, the void portion formed in the bag 100 due to the suction of the fluid can be released to the peripheral space 38 side. In addition, the fluid pressure feed device 10 of the present embodiment is provided with a scraper 60. Through the curved portion 64 provided on the periphery, it can be expected that the gap formed in the bag 100 due to the suction of the fluid can be pushed into the periphery. The effect in space 38. Therefore, in the fluid pressure feeding device 10, the possibility of obstructing the suction of the fluid due to the existence of the void portion formed in the bag 100 accompanying the suction of the fluid can be reduced. Therefore, according to the fluid pressure feeding device 10, it is possible to minimize the decrease in fluid suction efficiency caused by the existence of the void portion formed in the bag 100, or the increase in the remaining fluid volume due to incomplete suction. .

In addition, in the present embodiment, an example is shown in which the peripheral space 38 is formed between the outer peripheral surface 34a of the seat portion 30 and the inner peripheral surface 20a of the container 20, but the fluid pressure feed device 10 may not form the peripheral space 38. In addition, the present embodiment shows an example in which the scraper 60 provided with 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 not have the scraper 60, or may use, for example, a scraper that does not have the curved portion 64, so that the effect of pushing the void portion of the bag 100 into the peripheral space 38 is low or the pushing effect cannot be expected. 60, or a configuration in which instead of or together with the curved portion 64, the effect of pushing the void portion of the bag 100 into the peripheral space 38 can be expected.

As described above, the fluid pressure feeding device 10 can mount the connector 36 on the fluid non-accommodating part 104 in a bundled state, and insert the connector 36 while accommodating the fluid accommodating part 102 in the accommodating space part 35. Therefore, in the fluid pressure feeding device 10, the fluid non-accommodating part 104 can be accurately positioned and housed in the accommodating space part 35. Therefore, in the fluid pressure feeding device 10, it is possible to prevent the fluid non-accommodating portion 104 from becoming an obstacle when the fluid is sucked, and it is possible to suppress the remaining amount of fluid in the bag 100 to be sucked to a minimum. In addition, in the present embodiment, an example in which a connector 36 is provided is shown. However, the fluid pressure feeding device 10 may be configured without the connector 36, or may be provided in place of the connector 36 or together with the connector 36. The non-accommodating portion 104 is positioned with high precision and is accommodated in the accommodating space portion 35.

As described above, the bag 100 exemplified in this embodiment is in a state where the fluid non-accommodating portion 104 is bundled and fixed in a rod shape. Even if it is the fluid contained in the bag 100 supplied in this state, the fluid pressure-feeding device 10 can pump the fluid from the bag and pressure-feed the fluid until the remaining amount becomes sufficiently small. In addition, the present embodiment shows an example in which the bag 100 is provided in a state where the fluid non-accommodating portion 104 is formed in a rod shape, but the bag 100 may be, for example, the fluid non-accommodating portion 104 is gathered into a bundle and a clip, rubber, or cord is used. A bag in which the components are fixed, or a bag in which the fluid non-accommodating portion 104 is tied and tightened.

The present invention is not limited to the exemplified manners of the above-mentioned embodiments or modification examples, and other embodiments may be obtained according to the teachings and spirit thereof without departing from the scope of the invention patent application. The structural elements of the above-mentioned embodiment can be arbitrarily selected and combined to form the embodiment. In addition, arbitrary structural elements of the embodiment, any structural elements described in the means for solving the invention, or structural elements after any structural elements described in the means for solving the invention can be combined arbitrarily to form an implementation. the way. These are of significance for obtaining rights in the application for amendment or division of this application. Industrial availability

The fluid pressure delivery device of the present invention can be applied to all applications for sucking and pressure delivery of fluid from a bag having a fluid storage portion and a fluid non-accommodating portion.

10: Fluid pressure delivery device 20: container 20a: inner peripheral surface 30: Seat 34a: outer peripheral surface 35: Storage space department 36: connecting piece 38: Peripheral space 50: board 70: Pump 76x: suction port 100: bag 102: Fluid storage section 104: Fluid non-accommodating part 106: open

Fig. 1 is an exploded view showing a fluid pressure feeding device according to an embodiment of the present invention. Figure 2 is an enlarged view of the main part of Figure 1. Figure 3 (a) is a cross-sectional view showing the seat and the connecting piece, (b) is a cross-sectional perspective view showing the seat and the connecting piece. Figure 4 shows a cross-sectional view of the uniaxial eccentric screw pump. FIG. 5 is an explanatory diagram showing the first step for sucking and pressure-feeding fluid through the fluid pressure-feeding device of FIG. 1. FIG. 6 is an explanatory diagram showing a second process for sucking and pressure-feeding fluid through the fluid pressure-feeding device of FIG. 1. FIG. 7 is an explanatory diagram showing a third process for sucking and pressure-feeding fluid through the fluid pressure-feeding device of FIG. 1. FIG. 8 is an explanatory diagram showing a fourth process for sucking and pressure-feeding fluid through the fluid pressure-feeding device of FIG. 1. FIG. 9 is an explanatory diagram showing a fifth process for sucking and pressure-feeding fluid through the fluid pressure-feeding device of FIG. 1. Fig. 10 is an enlarged view of the main part of Fig. 9. Fig. 11 is an explanatory diagram showing a state in which the seat of the fluid pressure feeding device of Fig. 1 is replaced with other parts. (A) and (b) of FIG. 12 are explanatory diagrams which show an example of the bag which accommodates fluid, respectively.

10: Fluid pressure delivery device

20: container

20a: inner peripheral surface

22: Bag storage space

30: Seat

34: Seat body

34a: outer peripheral surface

34b: Top surface

35: Storage space department

36: connecting piece

38: Peripheral space

50: board

60: Scraper

70: Pump

76x: suction port

76y: spit out

86: electric motor

90: Lifting device

92: Pillar

94: arm

100: bag

102: Fluid storage section

104: Fluid non-accommodating part

Claims (7)

A fluid pressure feeding device, which is characterized in that: have: The container is to store the bag containing the fluid; A board, which is attached to the inside of the container and placed above the bag; and A pump, which sucks the fluid contained in the bag; The fluid pressure-feeding device can apply a pressing force to the bag via the plate while using the pump to suck and pressure-feed the fluid through an opening formed in the bag; The fluid pressure feeding device has a seat portion that is arranged on the bottom side of the container and can form a storage space portion; In the fluid pressure delivery device, the bag having a fluid storage portion and a fluid non-storage portion can be stored in the container, so that the fluid non-storage portion can be stored in the storage space portion. The fluid pressure delivery device according to claim 1, wherein: The accommodating space portion is provided in the central portion of the seat portion. The fluid pressure delivery device according to claim 1 or 2, wherein: The container and the suction port of the pump move relative to each other in linkage with the reduction of the remaining liquid, so that the suction port of the pump is close to the bottom of the container; The seat portion is formed in a tapered shape recessed toward a position opposite to the suction port. The fluid pressure delivery device according to claim 1 or 2, wherein: The container and the suction port of the pump move relative to each other in linkage with the reduction of the remaining liquid, so that the suction port of the pump is close to the bottom of the container; The storage space is provided on an extension line of the relative movement direction of the container and the suction port so as to face the suction port. The fluid pressure delivery device according to claim 1 or 2, wherein: Between the outer peripheral surface of the seat and the inner peripheral surface of the container is formed a peripheral space that extends in the axial direction of the container and opens toward the area where the bag is accommodated. The fluid pressure delivery device according to claim 1 or 2, wherein: Having a connecting piece that can be inserted into the storage space; The connector can be attached to the fluid non-accommodating part in a state where the fluid non-accommodating part is bound. The fluid pressure delivery device according to claim 1 or 2, wherein: The bag is formed into a rod shape by bundling the fluid non-accommodating part, and is stored in the container with the rod-shaped portion facing the bottom side of the container.

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