Stirring device and jet system

Abstract

To provide a stirring device which can achieve smooth jetting of a content stored in a container.SOLUTION: A stirring device according to one embodiment is used for a container which contains a content and a stirring tool which is attracted to a magnet and used to stir the content. The stirring device includes: a case; a first rotary member which is disposed in the case and rotates around a first axis; and a drive part which is disposed in the case and rotates the first rotary member. The first rotary member has: a first surface which faces the container; a first magnet; and a first contact part protruding farther than the first surface.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an agitation device and a jetting system. [Background technology]

[0002] Conventionally, a container such as an aerosol can may be used as a spraying device for spraying paint or the like (see, for example, Patent Document 1). The container is filled with contents including a hardening retarder and a propellant, and an agitator for stirring the contents. Before using the spraying device, it is necessary to stir the contents in the container. For example, a user holds the container in his / her hand and shakes it up and down, left and right, etc. to stir the contents. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-221889 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the stirring operation by the user is insufficient, the contents may not be mixed. This may cause variations in the quality of the contents sprayed from the spraying device. Therefore, one of the objects of the present invention is to provide a stirring device and a spraying system that can achieve good spraying of the contents contained in the container. [Means for solving the problem]

[0005] The stirring device according to one embodiment is used for a container that contains a content and a stirring tool that is attracted to a magnet and stirs the content. The stirring device includes a case, a first rotating member that is disposed in the case and rotates around a first axis, and a drive unit that is disposed inside the case and rotates the first rotating member.

[0006] According to one aspect of the embodiment, the first rotating member has a first surface capable of facing the container, a first magnet, and a first contact portion protruding beyond the first surface.

[0007] The first contact portion may be rotatably supported and may have a ball protruding beyond the first surface. A plurality of the first contact portions may be arranged in a circumferential direction about the first axis. The first surface may have a convex shape protruding toward the container on which it is placed.

[0008] The first magnet may be disposed apart from the first axis in a radial direction about the first axis. A plurality of the first magnets may be disposed in a circumferential direction about the first axis. The case may have a holding portion capable of holding the container.

[0009] The holding portion may have a first holding portion and a second holding portion arranged on either side of the first rotating member. The second holding portion may be configured to be capable of adjusting its position between a first position facing the first holding portion and a second position not facing the first holding portion. The case may further include a grip arranged on the case.

[0010] The stirring device may further include a second rotating member disposed in the case and rotating about a second axis parallel to the first axis. The drive unit may rotate both the first rotating member and the second rotating member, and the second rotating member may have a second surface capable of facing the container, a second magnet, and a second contact portion protruding beyond the second surface.

[0011] According to another aspect of the embodiment, the first rotating member has a first surface capable of facing the container and a first magnet, and the case has a holding portion capable of holding the container.

[0012] An injection system according to one embodiment includes the stirring device and an injection device to which the container can be attached. Effect of the Invention

[0013] According to the present invention, it is possible to provide an agitator and a spraying system that can achieve good spraying of the contents contained in a container. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a schematic perspective view of an injection system according to one embodiment. [Diagram 2] FIG. 2 is a schematic perspective view of the stirring device shown in FIG. [Diagram 3] FIG. 3 is a schematic perspective view of the stirring device shown in FIG. [Figure 4] FIG. 4 is a schematic perspective view of the stirring device shown in FIG. [Diagram 5] FIG. 5 is a schematic plan view of the stirring device shown in FIG. [Figure 6] FIG. 6 is a diagram for explaining a rotating member included in the stirring device. [Figure 7] FIG. 7 is a schematic side view of the stirring device shown in FIG. [Figure 8] FIG. 8 is a schematic perspective view showing one configuration example of the injection device shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] An embodiment of the present invention will be described below with reference to the drawings. In the drawings, an X-axis, a Y-axis, and a Z-axis that are perpendicular to each other are shown. The direction along the X-axis is called the X-direction, the direction along the Y-axis is called the Y-direction, and the direction along the Z-axis is called the Z-direction. The Z-direction is a normal direction to a plane that includes the X-direction and the Y-direction. The Z-direction may also be called the upward direction, and the direction opposite to the Z-direction may also be called the downward direction.

[0016] 1 is a schematic perspective view of a jetting system 100 according to the present embodiment. The jetting system 100 includes a jetting device 1 and an agitation device 10. The jetting device 1 is, for example, a polyurethane jetting device that is a two-liquid mixing type jetting device. Polyurea is used as a lining material for various facilities such as concrete structures and metal tanks.

[0017] The injection device 1 includes a holder 2 and an injection nozzle 3. Containers 4A and 4B can be attached to and detached from the holder 2. In the example shown in FIG.

[0018] The containers 4A and 4B are, for example, aerosol cans (spray cans). However, the containers 4A and 4B may be containers other than aerosol cans. The spray device 1 and the containers 4A and 4B are arranged in the direction opposite to the Z direction with respect to the agitator 10. The spray system 100 may be configured to further include the containers 4A and 4B.

[0019] The containers 4A and 4B each include a cylindrical container body 40 extending in the Z direction. In Fig. 1, the container body 40 of the container 4A is shown in a see-through manner. Each member of the containers 4A and 4B can be made of, for example, a metal material, but may also include a member made of a resin material or the like. A valve 41 (shown in Fig. 8) is provided on the upper portion of the container body 40.

[0020] The container 4A contains a content 42A and two agitators G, and the container 4B contains a content 42B and two agitators G. When the valves 41 of the containers 4A and 4B are opened, the contents 42A and 42B are sprayed.

[0021] The two stirrers G are housed in the container body 40 to stir the contents 42A and 42B. In this embodiment, the number of the stirrers G housed is two, but the number of the stirrers G housed may be one, or three or more.

[0022] The agitator G is attracted to a magnet. In one example, the agitator G is made of a ferromagnetic material such as an iron material, but is not limited to this example. In another example, the agitator G may be a magnet. The outer peripheral surface of the agitator G may be treated with nickel plating or the like. The specific gravity of the agitator G is greater than the specific gravity of the material constituting the contents 42A, 42B.

[0023] In one example, the stirring tool G has a spherical shape. The diameter of the stirring tool G is, for example, about 5 mm to 15 mm. In other examples, the stirring tool G may have a substantially spheroidal shape, a polyhedral shape, or any other shape.

[0024] As another example, the stirring tool G may have a shape with protrusions in order to improve the stirring effect. The protrusions may have various shapes, such as a blade shape. As another example, the stirring tool G may have a recess on the outer circumferential surface.

[0025] Polyurea material is stored in each of the containers 4A and 4B. Specifically, the container 4A is filled with a material obtained by adding a hardening retarder and a propellant to an A agent mainly composed of isocyanate as a content 42A.

[0026] The isocyanate is preferably an aromatic isocyanate such as 4,4'-diphenylmethane diisocyanate (4,4'-MDI), 2,4-tolylene diisocyanate (2,4-TDI), or 2,6-tolylene diisocyanate (2,6-TDI). The isocyanate may be an aliphatic isocyanate. The agent A may be a mixture in which a part of these isocyanates is reacted with a polyol to form a urethane prepolymer.

[0027] The curing retarder is compatible with component A and reduces the viscosity of component A. An example of a curing retarder is methyl ethyl ketone (MEK). Note that the curing retarder may be any solvent that has good compatibility with isocyanates and polyamines, and various general-purpose solvents such as acetone can be used.

[0028] As the propellant, a liquefied gas propellant or a compressed gas propellant can be used. As the liquefied gas propellant, for example, dimethyl ether (DME) or liquefied petroleum gas (LPG) can be mentioned. As the compressed gas propellant, compressed carbon dioxide gas or nitrogen gas can be mentioned. In the present embodiment, it is preferable to use a liquefied gas propellant. Since the liquefied gas propellant is in a liquid phase in the container, it contributes to reducing the viscosity of the agent A.

[0029] Container 4B is filled with a material as content 42B, which is made by adding the same hardening retarder and propellant as those in container 4A to agent B, which is mainly composed of polyamine. The hardening retarder and the liquefied gas-based propellant reduce the viscosity of agent B.

[0030] An example of the compounding ratio (volume ratio) of the hardening retarder and the propellant to the A or B agent is A or B agent: methyl ethyl ketone: dimethyl ether (liquid phase) = 7: 3: 10. It is preferable that 20 to 40 mL of the hardening retarder is contained for a total of 100 mL of the A (B) agent and hardening retarder. If the hardening retarder is less than 20 mL, the reaction of the A (B) agent may start early, and the materials may not be mixed sufficiently. If the hardening retarder is more than 40 mL, dripping may occur when applied to a wall, etc. In the case of the liquid phase, it is preferable that the propellant is about the same amount by volume as the total of the A (B) agent and hardening retarder.

[0031] Agent B is a mixture of polyamine having an average molecular weight of 1000 to 10000 and aromatic diamine. As the polyamine, for example, polyalkyleneamine such as polyoxypropylenediamine is suitable. As the aromatic diamine, for example, diethyltoluenediamine, 4,4'-methylenebis(N-sec-butylaniline), or a mixture thereof can be mentioned. The compounding ratio of agent B is, for example, 20 to 40 parts by weight of aromatic diamine to 100 parts by weight of polyamine.

[0032] Next, a description will be given of the stirring device 10. In one example, the stirring device 10 can be applied to an aerosol can in which a stirring tool G is housed.

[0033] 2 to 4 are schematic perspective views of the stirring device 10 shown in FIG. 1. FIG. 5 is a schematic plan view of the stirring device 10 shown in FIG. 1. FIG. 6 is a view for explaining a rotating member 50A provided in the stirring device 10. FIG. 7 is a schematic side view of the stirring device 10 shown in FIG. 1. In FIG. 3, a part of the stirring device 10 is omitted for convenience of explanation. In FIG. 4, the stirring device 10 is viewed from a direction different from that in FIGS. 2 and 3. In FIG. 6, a cross section of the rotating member 50A taken along the line VI-O-VI in FIG. 4 is shown.

[0034] 2 and 3, the stirring device 10 includes a case 20, a drive unit 30, and rotating members 50A and 50B. In this embodiment, the rotating member 50A corresponds to the first rotating member, and the rotating member 50B corresponds to the second rotating member.

[0035] The case 20 has, for example, a cylindrical shape that is long in the Z direction, but is not limited to this example. Each member of the case 20 is made of a resin material, but may include a member made of a metal material. The size of the case 20 is, for example, smaller than 200 mm x 200 mm x 200 mm, but is not limited to this example.

[0036] 2 and 3, the case 20 has covers 21, 22, 23, and 24, and plates 25 and 26. In Fig. 3, the covers 21 and 23 are omitted.

[0037] The cover 21 faces the cover 22 in the Y direction. The covers 21 and 22 extend in the Z direction. The covers 21 and 22 form a bottom wall of the case 20.

[0038] The covers 23 and 24 are located higher than the covers 21 and 22. The cover 23 faces the cover 24 in the Y direction. The cover 24 is formed integrally with the cover 21, for example.

[0039] The plates 25 and 26 have a flat plate shape parallel to the XY plane defined by the X and Y directions. The plates 25 and 26 have a rectangular shape that is elongated in the X direction. The plates 25 and 26 are lined up in this order in the Z direction.

[0040] The width of plate 25 in the Y direction is greater than the width of plate 26 in the Y direction. The edges of plate 25 are surrounded by covers 21 and 22, and the edges of plate 26 are surrounded by covers 23 and 24. A part of the upper surface of plate 25 is exposed as shown in Fig. 2. A grip 91, which will be described later, is disposed in that part.

[0041] 3, spaces 20A and 20B are formed inside the case 20. Space 20A is defined by covers 21 and 22 and a plate 25, and space 20B is defined by covers 23 and 24 and a plate 26. The length of space 20A in the Z direction is greater than the length of space 20B in the Z direction.

[0042] The driving unit 30 rotates each of the rotating members 50A and 50B. As shown in Fig. 3, the driving unit 30 is disposed inside the case 20. Here, one configuration example of the driving unit 30 will be described.

[0043] 3, the drive unit 30 has a power source 31, a motor 33, and gears 35, 37A, and 37B. The power source 31 and the motor 33 are disposed in the space 20A. The power source 31 and the motor 33 are fixed to the space 20A by a support member SA. The power source 31 is, for example, a rechargeable battery (in one example, a lithium ion battery), but may be another type of power source.

[0044] The motor 33 is an example of a drive source. The motor 33 is, for example, an electric motor. The motor 33 is electrically connected to the power source 31. A flange portion of the motor 33 is fixed to the plate 25.

[0045] The motor 33 has a shaft 331 that protrudes upward. The shaft 331 rotates about an axis parallel to the Z direction. The shaft 331 passes through the through-hole 251 of the plate 25 and extends into the space 20B.

[0046] The gears 35, 37A, and 37B are an example of a power transmission member that transmits rotation of the shaft 331 of the motor 33 to the rotating members 50A and 50B. The gear 35 is attached to the shaft 331. The gears 37A and 37B are attached to shafts 60 of the rotating members 50A and 50B, which will be described later, respectively.

[0047] The gears 35, 37A, and 37B are made of, for example, a resin material. The gears 35, 37A, and 37B are, for example, spur gears. The gears 35, 37A, and 37B have, for example, the same shape. The teeth of the gears 35, 37A, and 37B are parallel to the Z direction.

[0048] The gear 35 meshes with the gears 37A and 37B, respectively. As a result, when the shaft 331 of the motor 33 rotates, the gears 37A and 37B rotate, respectively, and the rotating members 50A and 50B rotate, respectively.

[0049] The number of rotations per unit time of the gears 37A and 37B is equal to the number of rotations per unit time of the gear 35, for example. The number of rotations is 150 rpm in one example, but is not limited to this example. The number of rotations per unit time of the gears 37A and 37B may be adjusted to be different from the number of rotations per unit time of the gear 35, for example. The gear 35 meshes with the gears 37A and 37B, respectively, but the combination of the gears 35, 37A, and 37B is not limited to this example.

[0050] In the driving unit 30, the rotational motion of the motor 33 is switched between starting and stopping by operating a power switch SW (shown in FIG. 2) arranged on the cover 21 of the case 20. The power switch SW is arranged, for example, on the upper end of the cover 21.

[0051] The rotating members 50A, 50B are disposed in the case 20. Specifically, the rotating members 50A, 50B are disposed above the plate 26, as shown in Fig. 3. A small gap may be formed between the rotating members 50A, 50B and the upper surface of the plate 26, for example, so as not to impede the rotational movement of the rotating members 50A, 50B.

[0052] The rotating member 50A is aligned with the rotating member 50B with a gap in the X direction. The rotating member 50A rotates around an axis CZ1 (shown in FIG. 3), and the rotating member 50B rotates around an axis CZ2 (shown in FIG. 3). In this embodiment, the axis CZ1 corresponds to the first axis, and the axis CZ2 corresponds to the second axis. The axes CZ1 and CZ2 are parallel to the Z direction.

[0053] In this embodiment, a container 4A is disposed relative to a rotating member 50A, and a container 4B is disposed relative to a rotating member 50B. Each of the rotating members 50A and 50B has a main body 51, a shaft 60, two magnets 70, and four contact portions 80. The shaft 60, the two magnets 70, and the four contact portions 80 are disposed in the main body 51.

[0054] In this embodiment, the magnet 70 of the rotating member 50A corresponds to the first magnet, the contact portion 80 of the rotating member 50A corresponds to the first contact portion, the magnet 70 of the rotating member 50B corresponds to the second magnet, and the contact portion 80 of the rotating member 50B corresponds to the second contact portion.

[0055] Here, the configuration of the rotating members 50A and 50B will be described using the rotating member 50A.

[0056] The main body 51 of the rotating member 50A is formed of, for example, a resin material, but is not limited to this example. The main body 51 has a circular shape when viewed in the direction opposite to the Z direction. In this embodiment, the main body 51 has a dome shape whose diameter decreases along the Z direction. As another example, the main body 51 may have a hemispherical shape or a truncated cone shape.

[0057] 4, the main body 51 has a surface 511 (first surface). In this embodiment, the surface 511 of the main body 51 of the rotating member 50B corresponds to the second surface. The surface 511 corresponds to a surface that can face the container 4A when the container 4A is placed thereon. The surface 511 has a convex shape that protrudes in the Z direction, for example.

[0058] 6, the shaft 60 is passed through an attachment portion 513 of the main body 51. The attachment portion 513 is formed along the Z direction from the lower surface of the main body 51. The shaft 60 is fixed to the main body 51 by, for example, a screw S1. This causes the main body 51 to rotate together with the shaft 60 about the axis CZ1. The shape of the attachment portion 513 may be appropriately changed depending on the shape of the shaft 60, etc.

[0059] The shaft 60 is rotatably supported with respect to the plates 25, 26 by bearings B1, B2 provided in through holes of the plates 25, 26, respectively. A gear 37A is attached to the shaft 60 between the plates 25, 26.

[0060] The two magnets 70 attract the stirrer G. In this embodiment, two magnets 70 are arranged on the main body 51, but the number of magnets 70 arranged may be one, or three or more. The magnet 70 has, for example, a disk shape, but is not limited to this example. The two magnets 70 are exposed from the surface 511, for example. The magnets 70 may be arranged on the main body 51 so as not to be exposed from the surface 511.

[0061] The two magnets 70 are disposed apart from the axis CZ1 in the radial direction R centered on the axis CZ1 as shown in Fig. 5. The two magnets 70 are disposed, for example, 180 degrees apart in the circumferential direction θ centered on the axis CZ1.

[0062] 6, the magnet 70 is disposed, for example, on the attachment portion 515 of the main body 51. The magnet 70 does not protrude beyond, for example, the surface 511. The attachment portion 515 is a recess recessed from the surface 511.

[0063] 6, the mounting portion 515 is formed on the surface 511, which is an inclined surface. The shape of the mounting portion 515 is changed as appropriate according to the shape of the magnet 70, etc. The magnet 70 is fixed to the main body 51 by, for example, a screw S2.

[0064] The magnet 70 is, for example, a permanent magnet. In one example, the permanent magnet is a neodymium magnet, but is not limited to this example. The magnet 70 may be formed of one magnet or multiple magnets. The magnet 70 is, for example, formed by stacking multiple magnets.

[0065] The magnet 70 may have its S pole or N pole positioned on the side facing the container body 40. The two magnets 70 may be arranged, for example, with the same pole facing the container body 40. As yet another example, one of the two magnets 70 may be arranged with its S pole facing the container body 40, and the other of the two magnets 70 may be arranged with its N pole facing the container body 40.

[0066] A portion of each of the four contact portions 80 protrudes from the surface 511. This allows the four contact portions 80 to come into contact with the container body 40 of the container 4A in which they are placed. In this embodiment, the number of contact portions 80 placed on the body 51 is four, but the number of contact portions 80 placed may be three or less, or five or more.

[0067] 5, the four contact portions 80 are disposed away from the axis CZ1 in the radial direction R. The four contact portions 80 are disposed, for example, at predetermined intervals in the circumferential direction θ. It is preferable that the contact portions 80 are disposed in the vicinity of the magnet 70.

[0068] As shown enlarged in the upper part of Fig. 6, the contact portion 80 is disposed, for example, on a mounting portion 517 of the main body 51. The mounting portion 517 is a recess recessed from the surface 511. In the example shown in Fig. 6, the mounting portion 517 is formed on the surface 511, which is an inclined surface. The shape of the mounting portion 517 may be appropriately changed depending on the shape of the contact portion 80, etc.

[0069] The contact portion 80 is, for example, a plunger (for example, a ball plunger). The contact portion 80 has a cylindrical main body 81, a ball 83, and a biasing member 85.

[0070] The main body 81 is fixed to the main body 51. The ball 83 is rotatably supported at the tip of the main body 81. A part of the ball 83 protrudes from the main body 81. In other words, in the contact portion 80, the ball 83 protrudes most from the surface 511.

[0071] The biasing member 85 biases the ball 83 in the extending direction of the main body 81. The position of the ball 83 with respect to the main body 81 is displaced by the load applied to the ball 83. The biasing member 85 is, for example, a coil spring.

[0072] Next, the relationship between the rotating member 50A and the container 4A will be described with reference to FIG.

[0073] The axis of the container body 40 of the container 4A is positioned coaxially with the axis CZ1. The container body 40 has a bottom wall 401 and a side wall 403 extending in the Z direction from the bottom wall 401. The bottom wall 401 has, for example, a convex shape that protrudes in the Z direction (toward the inside of the container body 40).

[0074] As a result, a dome-shaped space whose diameter decreases along the Z direction is formed below the bottom wall 401. The rotating member 50A is located in this space. The main body 51 of the rotating member 50A has a shape corresponding to the shape of the bottom of the container main body 40.

[0075] Here, the bottom portion includes the bottom wall 401 of the container body 40 and the vicinity of the bottom wall 401 (for example, the side wall 403). In one example, the surface 511 has a curvature equal to the curvature of the bottom wall 401 of the container body 40. In other words, the surface 511 has a convex shape that protrudes toward the bottom wall 401 of the container body 40.

[0076] Thereby, the surface 511 faces the bottom wall 401 so as to be aligned along the bottom wall 401. As a result, the distance between the two magnets 70 and the agitator G can be reduced, and the agitator G can be easily attracted to the magnets 70.

[0077] At the contact portion 80, the ball 83 protrudes beyond the surface 511 and the magnet 70. Therefore, when the container 4A is placed, the spherical surface of the ball 83 comes into contact with the bottom wall 401. At this time, the biasing member 85 biases the ball 83 toward the bottom wall 401. Meanwhile, a gap SP is formed between the magnet 70 and the bottom wall 401. The gap SP is formed along the surface 511, between the surface 511 and the bottom wall 401.

[0078] The mixer G is attracted to the magnet 70 with the bottom wall 401 sandwiched therebetween. At this time, the magnet 70 is separated from the axis CZ1 in the radial direction R. When the rotating member 50A rotates, the mixer G rotates about the axis CZ1 in the Z direction so as not to overlap with the axis CZ1.

[0079] In the above, the rotating member 50A has been mainly described, but the rotating member 50B is configured similarly to the rotating member 50A, and the relationship between the rotating member 50B and the container 4B is similar to the relationship between the rotating member 50A and the container 4A.

[0080] 4 and 5, the case 20 further has a holding portion 27. The holding portion 27 holds the container bodies 40 of the containers 4A, 4B. The holding portion 27 is disposed above the plate 26. This allows the holding portion 27 to hold the container bodies 40 located above the rotating members 50A, 50B. Here, one configuration example of the holding portion 27 will be described.

[0081] The holding portion 27 has a first holding portion 28 and a second holding portion 29. The second holding portion 29 faces the first holding portion 28 in the Y direction. The first holding portion 28 and the second holding portion 29 are disposed, for example, in the Y direction with the rotating members 50A, 50B sandwiched therebetween.

[0082] From the viewpoint of the containers 4A, 4B, the first holding portion 28 and the second holding portion 29 face the arranged containers 4A, 4B. The first holding portion 28 is formed integrally with the cover 23, for example.

[0083] The first holding portion 28 and the second holding portion 29 have inner surfaces that can conform to the shapes of the side walls 403 (shown in FIG. 6) of the containers 4A and 4B. Specifically, as shown in FIG. 5, the first holding portion 28 has recesses 281A and 281B aligned in the X direction, and the second holding portion 29 has recesses 291A and 291B aligned in the X direction.

[0084] The recesses 281A, 281B and the recesses 291A, 291B each have an arc shape when viewed in the direction opposite to the Z direction. In this embodiment, the container 4A is held by the recesses 281A and 291A, and the container 4B is held by the recesses 281B and 291B.

[0085] Cushioning material F (indicated by dashed lines in FIG. 5) may be disposed in each of the recesses 281A, 281B and the recesses 291A, 291B. The cushioning material F is formed of, for example, an elastically deformable foamed rubber material, but is not limited to this example.

[0086] The cushion material F has a predetermined thickness. As a result, the cushion material F can deform to hold the holding portion 27 even if the container body 40 has a different size. The cushion material F may also have a function as an anti-slip material that prevents the container body 40 from rotating when the rotating members 50A, 50B are rotated.

[0087] As shown in FIG. 7, the second holding portion 29 is configured so that its position can be adjusted. Specifically, the second holding portion 29 is configured so that its position can be adjusted between a first position P1 facing the first holding portion 28 and a second position P2 not facing the first holding portion 28.

[0088] 7, the second holding portion 29 at the first position P1 is indicated by a solid line, and the second holding portion 29 at the second position P2 is indicated by a dashed line. The recesses 291A and 291B of the second holding portion 29 face, for example, in the Z direction at the second position P2. In other words, the second holding portion 29 is disposed on the case 20 so as to be rotatable about an axis extending in the X direction.

[0089] The position of the second holding portion 29 at the second position P2 is not limited to the example shown in Fig. 7. The rotation direction of the second holding portion 29 is appropriately changed depending on the position of the second holding portion 29 at the second position P2.

[0090] An adjustment member 93 for adjusting the position of the second holding portion 29 is disposed in the case 20. The adjustment member 93 is, for example, a toggle clamp, but is not limited to this example. The adjustment member 93 is disposed in, for example, the cover 24. In Fig. 7, the position of the adjustment member 93 corresponding to the first position P1 is indicated by a solid line, and the position of the adjustment member 93 corresponding to the second position P2 is indicated by a dashed line.

[0091] When the grip 931 of the adjustment member 93 is raised in the direction indicated by the arrow A, the second holding part 29 switches its position from the first position P1 to the second position P2. Conversely, when the grip 931 of the adjustment member 93 is lowered in the direction indicated by the arrow B, the second holding part 29 switches its position from the second position P2 to the first position P1.

[0092] At the first position P1, the second holding portion 29 is pressed by the adjustment member 93 in a direction approaching the first holding portion 28 (the direction opposite to the Y direction). This allows the first holding portion 28 and the second holding portion 29 to hold the container body 40 by the restraining force of the adjustment member 93. That is, by being held by the holding portion 27, the container body 40 is prevented from rotating together with the rotating members 50A, 50B.

[0093] The stirring device 10 may further include a grip 91 as shown in Fig. 5. The grip 91 is made of, for example, a metal material. The grip 91 has, for example, an L-shape when viewed in the X-direction, but is not limited to this example.

[0094] Grip 91 has a rod-shaped portion 911 extending in, for example, the X direction. Rod-shaped portion 911 does not overlap plate 25 in the Z direction. This makes it difficult for the user's hand to come into contact with case 20 when gripping rod-shaped portion 911. A power switch SW is disposed below rod-shaped portion 911, so that the user can easily operate the power switch SW while gripping grip 91.

[0095] Next, a configuration example of the injection device 1 will be described. Fig. 8 is a schematic perspective view showing the configuration example of the injection device 1 shown in Fig. 1. As described with reference to Fig. 1, the injection device 1 includes the holder 2 and the injection nozzle 3.

[0096] The holder 2 has a base 5, a grip 6, and a trigger 7. Each member of the holder 2 is formed of, for example, a resin material. The base 5 is configured so that the containers 4A, 4B can be attached and detached. The grip 6 and the trigger 7 are attached to the base 5.

[0097] A user can operate the valves 41 of the containers 4A, 4B by using the trigger 7. When the containers 4A, 4B are attached, the trigger 7 is located above the valves 41. The trigger 7 is supported so as to be rotatable about a hinge provided at one end of the base 5.

[0098] The injection nozzle 3 has an adapter 8 and a static mixer 9. The adapter 8 is attached to the base 5. The adapter 8 is connected to the valves 41 of the containers 4A and 4B, respectively, through, for example, tubes (not shown) or the like. The base end of the static mixer 9 is connected to the adapter 8. The static mixer 9 is fixed to the adapter 8 by a fixing device 11.

[0099] The static mixer 9 mixes the component A in the container 4A sent through the adapter 8 with the component B in the container 4B sent through the adapter 8. The static mixer 9 is provided with a plurality of elements whose rotation directions are alternately switched.

[0100] When the user presses trigger 7 downward with the thumb of the hand gripping grip 6, trigger 7 rotates about a hinge. At this time, trigger 7 presses valves 41 of containers 4A and 4B downward, and these valves 41 are opened simultaneously. When valve 41 is opened, agent A in container 4A and agent B in container 4B are supplied to static mixer 9.

[0101] When the components A and B pass through the inside of the static mixer 9, they are stirred and mixed by a plurality of elements to produce polyurea. The produced polyurea is sprayed from the spray hole 9a of the static mixer 9.

[0102] Next, a method of using the injection system 100 according to this embodiment will be described.

[0103] Before placing the spray device 1 with the containers 4A and 4B attached thereto on the agitator 10, the grip 931 of the adjustment member 93 is operated to place the second holding portion 29 in the second position P2.

[0104] Next, the containers 4A and 4B are placed above the rotating members 50A and 50B. At this time, as described with reference to FIG. 6, the spherical surface of the ball 83 contacts the bottom wall 401 at the contact portion 80. From another point of view, a gap SP is formed between the magnet 70 and the bottom wall 401.

[0105] Next, the grip 931 of the adjustment member 93 is operated to move the second holding part 29 from the second position P2 to the first position P1. As a result, the containers 4A, 4B are held by the first holding part 28 and the second holding part 29.

[0106] Subsequently, when the power switch SW is operated, the shaft 331 of the motor 33 rotates. This causes the rotating members 50A and 50B to rotate about the axes CZ1 and CZ2, respectively, via the gears 35, 37A and 37B.

[0107] The rotating members 50A, 50B rotate with the balls 83 in contact with the bottom wall 401 of the container body 40. At this time, since each of the container bodies 40 is held by the first holding portion 28 and the second holding portion 29, the rotating members 50A, 50B are prevented from rotating together with the rotating members 50A, 50B.

[0108] The agitator G is attracted to the magnet 70 across the bottom wall 401. When the rotating members 50A, 50B rotate about the axes CZ1, CZ2, the agitator G rotates about the axes CZ1, CZ2 together with the magnet 70. The rotation of the rotating members 50A, 50B and the agitator G relative to the container body 40 agitates the contents 42A, 42B, respectively.

[0109] With the contents 42A, 42B being mixed by the mixer 10, the tip of the static mixer 9 is directed toward the work area or workpiece to be coated with polyurea, and the trigger 7 is pressed. This causes the agents A and B to be mixed in the static mixer 9, and the polyurea is sprayed from the spray hole 9a. In this way, in the spraying system 100, the spraying operation can be performed by the sprayer 1 while the mixing operation is being performed by the mixer 10.

[0110] The stirring device 10 and the injection system 100 configured as above can realize good injection of the contents contained in the container. Specifically, the rotating member 50A of the stirring device 10 has a magnet 70 and a contact portion 80.

[0111] The contact portion 80 protrudes from the surface 511 of the main body 51. Therefore, when the container 4A is placed above the rotating member 50A, the bottom wall 401 of the container main body 40 comes into contact with the contact portion 80. The stirrer G is attracted to the magnet 70 with the bottom wall 401 sandwiched therebetween.

[0112] In contrast, since gaps SP are formed between surface 511 and bottom wall 401, and between magnet 70 and bottom wall 401, surface 511 and magnet 70 are less likely to come into contact with bottom wall 401, and rotation of rotating member 50A is less likely to be hindered.

[0113] When the rotating member 50A is rotated in this state, the contact portion 80 rotates while contacting the bottom wall 401. As the rotating member 50A and the agitator G rotate relative to the container body 40, the content 42A is agitated by the agitator G.

[0114] In the agitation device 10 according to the present embodiment, the rotating member 50A can rotate stably about the axis CZ1, so that the content 42A can be reliably agitated by the agitator G. This allows the agitated content 42A to be sprayed from the container 4A, so that good spraying can be achieved.

[0115] Content 42A may contain pigments, resin components, etc. Since pigments and resin components have a large specific gravity among the materials constituting content 42A, they may precipitate or aggregate on bottom wall 401, forming sediment.

[0116] The agitator G rotates stably around the axis CZ1 relative to the container body 40, dispersing the pigment and resin components in the content 42A. In other words, the pigment and resin components float up from the bottom wall 401 due to agitation by the agitator G. Furthermore, since the agitator G rotates while in contact with the bottom wall 401, it is easy to disperse precipitates and agglomerates of the pigment and resin components on the bottom wall 401.

[0117] The container 4A has, for example, a tube 43 (shown in FIG. 6). The tube 43 extends from the upper part of the container body 40 toward the bottom wall 401. The tube 43 corresponds to a flow path through which the contents 42A pass when the valve 41 is opened.

[0118] An inlet 431 (shown in FIG. 6) is provided at one end of the tube 43. The portion of the tube 43 including the inlet 431 is immersed in the liquid phase of the contents 42A. The inlet 431 is located, for example, near the bottom wall 401 and opens toward the bottom wall 401.

[0119] The pigment and resin components may clog the inlet hole 431 and cause it to partially or completely block the inlet hole 431. By using the stirring device 10, the contents 42A can be mechanically stirred as described above.

[0120] This allows the pigment and resin components to be dispersed in the contents 42A. As a result, the pigment and resin components are less likely to precipitate or aggregate near the bottom wall 401, so clogging of the inlet hole 431 is suppressed.

[0121] If the pigment and resin components have settled or aggregated near the bottom wall 401, the pigment and resin components are difficult to disperse by the user simply shaking the container 4A up and down. Therefore, the pigment and resin components can be dispersed in the content 42A by mechanically stirring the content 42A with the stirring device 10. The stirring device 10 can reduce the labor required for stirring compared to when the user shakes the container 4A up and down by hand.

[0122] The contact portion 80 has a rotatably supported ball 83. Since the ball 83 protrudes most from the contact portion 80, the spherical surface of the rotating ball 83 comes into contact with the bottom wall 401 of the container body 40.

[0123] This reduces the frictional resistance between the contact portion 80 and the bottom wall 401, allowing the rotating member 50A to rotate more stably. By reducing the frictional resistance, the power of the driving portion 30 for rotating the rotating member 50A can be reduced. Since the position of the ball 83 can be displaced by the load from the container body 40, etc., it can follow the change in the position of the container body 40 in the Z direction.

[0124] In this embodiment, a plurality of (for example, four) contact portions 80 are arranged. With a plurality of contact portions 80, the container body 40 can be stably supported, and the gap SP can be reliably formed between the surface 511 and the bottom wall 401.

[0125] This makes it more difficult for the rotating member 50A and the container body 40 to come into contact with each other, allowing the rotating member 50A to rotate more stably. Furthermore, by arranging the contact portion 80 in the vicinity of the magnet 70, it is possible to reliably form a gap SP between the bottom wall 401 of the container body 40 and the magnet 70 when the container 4A is arranged. This makes it less likely that wear will occur due to contact between the body 51 (surface 511) and the bottom wall 401.

[0126] In this embodiment, the stirring device 10 has a rotating member 50B. The rotating member 50B is configured similarly to the rotating member 50A. The contents 42B in the container 4B can be mechanically stirred in the same manner as in the container 4A. Furthermore, the stirring device 10 can simultaneously stir the contents 42A and 42B in the containers 4A and 4B.

[0127] Since the contents 42A, 42B contain a plurality of materials with different specific gravities, a difference in concentration may occur between the upper and lower parts of the container body 40. This may be an obstacle to uniform application.

[0128] In particular, when spraying two-component resin, if the mixing ratio of the two liquids to be reacted is not the desired mixing ratio, there is a concern that when the sprayed resin chemically reacts, there will be an excess of either the base resin or the hardener, resulting in the resin remaining unreacted or not being able to sufficiently harden as a polymer material.

[0129] In this embodiment, it is possible to suppress variations in mixing of the pigment and resin components with a plurality of materials by stirring the contents 42A and 42B with the stirring device 10. As a result, the mixing ratio of the agent A in the container 4A and the agent B in the container 4B can be kept normal for the two-liquid mixing type spray device 1, and polyurea with desired characteristics can be sprayed.

[0130] In this embodiment, the case 20 further has a holding portion 27 that holds the container body 40. Specifically, the holding portion 27 has a first holding portion 28 and a second holding portion 29 that face each other with the rotating members 50A, 50B between them.

[0131] As a result, each of the container bodies 40 is held by the first holding portion 28 and the second holding portion 29, and therefore the container body 40 is prevented from rotating together with the rotating members 50A, 50B. In other words, the user does not need to fix the container body 40 by hand.

[0132] Furthermore, in this embodiment, the second holding part 29 is configured to be able to adjust its position between the first position P1 and the second position P2, as described with reference to Fig. 7. This allows the container body 40 to be easily attached to and detached from the stirring device 10. Since the bottom wall 401 of the container body 40 does not come into contact with the magnet 70, the holding part 27 can suppress rotation of the container body 40 even if the restraining force of the adjustment member 93 (e.g., a toggle clamp) is not large.

[0133] Furthermore, since the container body 40 is held by the holding portion 27, the user can perform stirring and spraying operations while holding the grip 91 of the stirring device 10 with one hand and the grip 6 of the spraying device 1 with the other hand.

[0134] Specifically, the power switch SW can be operated with the hand holding grip 91 to start or stop the rotation of rotating members 50A, 50B, and the trigger 7 of holder 2 can be pressed with the hand holding grip 6 to spray polyurea from the spray hole 9a.

[0135] That is, the user can perform the spraying operation of the polyurethane using the spraying device 1 while performing the stirring operation using the stirring device 10. Until now, the user was able to stir the contents of the aerosol can by shaking it by hand before application, but it was difficult to continue the stirring operation while spraying.

[0136] For example, a mixing device according to a comparative example is a device for shaking or vibrating a container. Such a mixing device is based on the premise of mixing work before construction, and since the device itself is large-scale, it is difficult to perform mixing work during construction.

[0137] When the contents contain materials with different specific gravities or fine additives, the composition of the contents sprayed may differ between the start and end of application. This can cause the finished coating to be uneven or cause poor curing due to unreacted areas in the chemical reaction.

[0138] In this embodiment, the polyurethane can be sprayed while stirring, so that the composition of the sprayed contents is unlikely to differ between the start and end of the work. As a result, the spraying system 100 equipped with the stirring device 10 according to this embodiment can form a good coating film.

[0139] The injection system 100 has excellent portability because it can be carried with the containers 4A, 4B and the injection device 1 attached to the agitator 10. This allows the injection system 100 to be used at a desired work site.

[0140] Since the injection system 100 according to this embodiment can be used in the state shown in Fig. 1, it is not necessary to remove the containers 4A and 4B from the holder 2 after the stirring operation. This makes it possible to perform the work on site more efficiently.

[0141] Since the contents 42A, 42B are mechanically stirred by the stirring device 10, the stirring time, the number of rotations, etc. can be specified in advance. This makes it possible to prevent variations in the stirring work due to differences in users. In other words, with the stirring device 10, the stirring work can be quantified, making it easier to manage the quality of the contents to be sprayed.

[0142] As described above, this embodiment can provide the stirring device 10 and the injection system 100 that can realize good injection of the contents of the container. In addition to the above, various other preferable actions can be obtained from this embodiment. The above embodiment does not limit the scope of the present invention to the disclosed configuration. In addition, various other configurations can be applied without departing from the spirit of the present invention.

[0143] In this embodiment, the spraying device 1 is described as a spraying device that sprays polyurea, but the configuration disclosed in this embodiment can be applied to a spraying device that sprays other types of materials. In this case, appropriate contents for obtaining the material to be sprayed are stored in the containers 4A and 4B.

[0144] The number of containers that can be attached to the injection device 1 is not limited to two, and may be one, or three or more. The shapes of the holder 2 and the stirring device 10 are appropriately changed according to the number of containers.

[0145] In the present embodiment, one example of the container body 40 of the container 4A and the container 4B has been disclosed, but the container body 40 may have other shapes.

[0146] In this embodiment, an example in which the contact portion 80 is a ball plunger has been disclosed, but the contact portion 80 may be formed, for example, by making a part of the main body 51 protrude beyond the surface 511. In this case, it is preferable that the protruding surface has a spherical shape such as a hemisphere.

[0147] In the present embodiment, an example in which the magnet 70 is a permanent magnet has been disclosed, but the magnet 70 may be an electromagnet. In this case, the driving unit 30 may further include a control unit that controls the current supplied to the electromagnet, etc.

[0148] The control unit adjusts the current supplied to the electromagnet to control the polarity of the electromagnet, the magnitude of the magnetic force acting from the electromagnet to the stirrer G, etc. For example, the control unit changes the direction of the current to switch the polarity from the electromagnet to the container body 40 between the S pole and the N pole.

[0149] In the present embodiment, the gears 35, 37A, and 37B have been described as an example of the power transmission member, but the power transmission member may be a pulley, a belt that transmits the rotation of a pulley, or the like.

[0150] In this embodiment, an example is disclosed in which the case 20 of the stirring device 10 has a holding portion 27, but an element equivalent to the holding portion 27 may be provided in the injection device 1, and if necessary, the user may hold the container body 40 so that it does not rotate.

[0151] After the contents 42A, 42B are stirred by the stirring device 10, the containers 4A, 4B may be shaken up and down together with the injection system 100. By shaking the containers 4A, 4B up and down after using the stirring device 10, a plurality of materials with different specific gravities can be reliably mixed. Since the containers 4A, 4B are attached to the holder 2, the containers 4A, 4B can be shaken simultaneously. [Explanation of symbols]

[0152] 1...injection device, 2...holder, 3...injection nozzle, 4A, 4B...container, 10...agitating device, 20...case, 27...holding part, 28...first holding part, 29...second holding part, 30...driving part, 40...container body, 42A, 42B...contents, 50A, 50B...rotating member, 70...magnet, 80...contact part, 81...main body, 83...ball, 85...actuating member, 91...grip, 93...adjusting member, 100...injection system, 511...surface, G...agitating tool.

Claims

1. A stirring device used in a container that contains a content and a stirring tool that is attracted to a magnet and stirs the content, Case and a first rotating member disposed in the case and configured to rotate about a first axis; a drive unit disposed inside the case and configured to rotate the first rotating member; The first rotating member has a first surface capable of facing the container, a first magnet, and a first contact portion protruding from the first surface. Stirring device.

2. The first contact portion is rotatably supported and has a ball protruding beyond the first surface. The stirring device according to claim 1 .

3. The first contact portion is arranged in a circumferential direction around the first axis. The stirring device according to claim 1 .

4. The first surface has a convex shape protruding toward the container in which it is placed. The stirring device according to claim 1 .

5. The first magnet is disposed away from the first axis in a radial direction centered on the first axis. The stirring device according to claim 4.

6. The first magnet is arranged in a circumferential direction around the first axis. The stirring device according to claim 5.

7. The case has a holding portion capable of holding the container. The stirring device according to claim 1 .

8. The holding portion has a first holding portion and a second holding portion arranged to sandwich the first rotating member. The stirring device according to claim 7.

9. The second holding portion is configured to be capable of adjusting its position between a first position facing the first holding portion and a second position not facing the first holding portion. The stirring device according to claim 8.

10. further comprising a grip disposed on the case. The stirring device according to claim 1 .

11. a second rotating member disposed in the case and configured to rotate about a second axis parallel to the first axis; The drive unit rotates both the first rotating member and the second rotating member, The second rotating member has a second surface capable of facing the container, a second magnet, and a second contact portion protruding from the second surface. The stirring device according to claim 1 .

12. A stirring device used in a container that contains a content and a stirring tool that is attracted to a magnet and stirs the content, Case and a first rotating member disposed in the case and configured to rotate about a first axis; a drive unit disposed inside the case and configured to rotate the first rotating member; The first rotating member has a first surface capable of facing the container and a first magnet, The case has a holding portion capable of holding the container. Stirring device.

13. A stirring device according to any one of claims 1 to 12, and a spray device to which the container can be attached. Injection system.

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