Stirring device and injection 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 a stirring device and an injection system.

Background Art

[0002] Conventionally, a container such as an aerosol can may be used in an injection device for injecting paint or the like (see, for example, Patent Document 1). The container is filled with a content containing a curing retarder, a propellant, and the like, and a stirrer or the like for stirring the content. Before using the injection device, it is necessary to stir the content in the container. For example, the user holds the container by hand and stirs the content by shaking it in the vertical direction, horizontal direction, or the like.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, if the stirring operation by the user is insufficient, the content may not be mixed. As a result, the quality of the content injected from the injection device may vary. Therefore, an object of the present invention is to provide a stirring device and an injection system capable of realizing good injection of the content accommodated in the container.

Means for Solving the Problems

[0005] A stirring device according to an embodiment is used for a container that houses a content and a stirrer 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 about a first axis, and a driving unit that is disposed inside the case and rotates the first rotating member. , at least one The stirring device includes a case, a first rotating member that is disposed in the case and rotates about a first axis, and a driving 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 first one held above the first rotating member container of the first bottom wall faces of the one surface, the first stirrer accommodated in the first container adsorbs a first magnet, and a first contact portion protruding from the first surface and contacts the first bottom wall and has.

[0007] The first contact portion is rotatably supported and protrudes from the first surface and contacts the first bottom wall and may have a ball. A plurality of the first contact portions may be arranged in the circumferential direction around the first axis. The first surface before record first bottom wall and may have a convex shape protruding toward.

[0008] The first magnet may be arranged away from the first axis in the radial direction around the first axis. A plurality of the first magnets may be arranged in the circumferential direction around the first axis. The case above the first rotating member and the first 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 with the first rotating member therebetween. The second holding portion may be configured to be adjustable in 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 thereon.

[0010] The stirring device may further include a second rotating member arranged in the case and rotating about a second axis parallel to the first axis. The drive unit rotates both the first rotating member and the second rotating member, and the second rotating member second one held above the second rotating member container of the second bottom wall faces of the two surfaces, the second stirrer accommodated in the second container adsorbs a second magnet, and a second contact portion protruding from the second surface and contacts the second bottom wall and may have. The case may have a holding portion capable of holding the first container and the second container above the first rotating member.

[0011] According to another aspect of the embodiment, the first rotating member held above the first rotating member The above-mentioned at least one container of the bottom wall has a first surface facing it, and the stirrer adsorbs a first magnet, and the case has above the first rotating member the above-mentioned at least one a holding part capable of holding the container. The holding portion includes a first holding portion and a second holding portion disposed with the first rotating member interposed therebetween. The first holding portion has a first recess, and the second holding portion has a second recess for holding the at least one container together with the first recess. The second holding portion is configured to be adjustable in position between a first position where the second recess faces the first recess and a second position where the second recess does not face the first recess. The case may further have an adjusting member for switching the position of the second holding portion between the first position and the second position. The first holding portion and the second holding portion may further have cushioning materials disposed in the first recess and the second recess.

[0012] An injection system according to an embodiment includes the stirring device and the at least one injection device capable of attaching the container.

Advantages of the Invention

[0013] According to the present invention, it is possible to provide a stirring device and an injection system capable of realizing good injection of the content accommodated in the container.

Brief Description of the Drawings

[0014] [Figure 1] FIG. 1 is a schematic perspective view of an injection system according to an embodiment. [Figure 2] FIG. 2 is a schematic perspective view of the stirring device shown in FIG. 1. [Figure 3] FIG. 3 is a schematic perspective view of the stirring device shown in FIG. 1. [Figure 4] FIG. 4 is a schematic perspective view of the stirring device shown in FIG. 1. [Figure 5] FIG. 5 is a schematic plan view of the stirring device shown in FIG. 1. [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. 1. [Figure 8] FIG. 8 is a schematic perspective view showing a configuration example of the injection device shown in FIG. 1.

Embodiments for Carrying Out the Invention

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

[0016] Figure 1 is a schematic perspective view of an injection system 100 according to the present embodiment. The injection system 100 includes an injection device 1 and a stirring device 10. The injection device 1 is, for example, a two-component mixing type injection device, a polyurea injection device. Polyurea is used, for example, 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. The holder 2 can attach and detach containers 4A and 4B. In the example shown in Figure 1, the containers 4A and 4B are attached to the holder 2.

[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 injection device 1 and the containers 4A and 4B are arranged in a direction opposite to the Z direction with respect to the stirring device 10. The injection 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 Figure 1, the container body 40 of the container 4A is shown transparently. Each member of the containers 4A and 4B can be formed of, for example, a metal material, but may include members formed of a resin material or the like. A valve 41 (shown in Figure 8) is provided at the upper part of the container body 40.

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

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

[0022] The stirrer G is attracted to the magnet. The stirrer G is, for example, formed of a ferromagnetic material such as an iron material, but is not limited to this example. The stirrer G may be a magnet as another example. The outer peripheral surface of the stirrer G may be subjected to a treatment such as nickel plating. The specific gravity of the stirrer G is larger than the specific gravity of the material constituting the contents 42A and 42B.

[0023] The stirrer G has a spherical shape in one example. The diameter of the stirrer G is, for example, about 5 mm to 15 mm. As another example, the stirrer G may have a substantially oblate spherical shape, a polyhedral shape, or other shapes.

[0024] As still another example, the stirrer G may have a shape provided with protrusions for the purpose of improving the stirring effect. Various shapes such as a shape like a blade can be applied to the shape of the protrusions. As still another example, the stirrer G may have a concave portion on the outer peripheral surface.

[0025] The containers 4A and 4B contain a polyurea material respectively. Specifically, the container 4A is filled with a material in which a curing retarder and a propellant are added to an A agent mainly composed of isocyanate as the 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), 2,6-tolylene diisocyanate (2,6-TDI), etc. Note that the isocyanate may be an aliphatic isocyanate. The Agent A may be a mixture obtained by reacting a part of these isocyanates with a polyol to form a urethane prepolymer.

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

[0028] As the propellant, a liquefied gas-based propellant or a compressed gas-based propellant can be used. Examples of the liquefied gas-based propellant include liquefied gas-based propellants such as dimethyl ether (DME) and liquefied petroleum gas (LPG). Examples of the compressed gas-based propellant include compressed carbon dioxide gas and nitrogen gas. In the present embodiment, it is preferable to use a liquefied gas-based propellant. Since the liquefied gas-based propellant is in a liquid phase in the container, it contributes to the reduction of the viscosity of Agent A.

[0029] The container 4B is filled with a material in which a curing retarder and a propellant similar to those of the container 4A are added to the Agent B mainly composed of polyamine as the content 42B. The curing retarder and the liquefied gas-based propellant reduce the viscosity of the Agent B.

[0030] An example of the mixing ratio (volume ratio) of the curing retarder and the propellant with respect to Agent A or Agent B is Agent A or Agent B: methyl ethyl ketone: dimethyl ether (liquid phase) = 7:3:10. For a total of 100 mL of Agent A (Agent B) and the curing retarder, it is preferable to contain 20 to 40 mL of the curing retarder. If the amount of the curing retarder is less than 20 mL, the reaction of Agent A (Agent B) may start too early, and there is a risk that the materials cannot be sufficiently mixed. If the amount of the curing retarder exceeds 40 mL, there is a risk of liquid dripping when applied to a wall or the like. In the case of the liquid-phase propellant, it is preferably about the same amount as the total of Agent A (Agent B) and the curing retarder in terms of volume ratio.

[0031] Agent B is a mixture obtained by adding an aromatic diamine to a polyamine having an average molecular weight of 1000 to 10000. As the polyamine, for example, polyalkyleneamines such as polyoxypropylene diamine are suitable. Examples of the aromatic diamine include diethyltoluenediamine, 4,4'-methylenebis(N-sec-butylaniline), or a mixture thereof. The mixing ratio of Agent B is, for example, 20 to 40 parts by weight of the aromatic diamine with respect to 100 parts by weight of the polyamine.

[0032] Subsequently, the stirring device 10 will be described. In one example, the stirring device 10 can be applied to an aerosol can in which a stirrer G is accommodated.

[0033] Figs. 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 diagram for explaining the 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 Figs. 2 and 3. In Fig. 6, a cross-section of the rotating member 50A along the line VI-O-VI in Fig. 4 is shown.

[0034] As shown in FIGS. 2 and 3, the stirring device 10 includes a case 20, a drive unit 30, and rotating members 50A and 50B. In the present 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 formed of a resin material, but may include a member formed of a metal material. The size of the case 20 is, for example, smaller than 200 mm × 200 mm × 200 mm, but is not limited to this example.

[0036] As shown in FIGS. 2 and 3, the case 20 has covers 21, 22, 23, 24 and plates 25, 26. In FIG. 3, the covers 21 and 23 are omitted respectively.

[0037] In the Y direction, the cover 21 faces the cover 22. The covers 21 and 22 extend in the Z direction. The bottom wall of the case 20 is formed by the covers 21 and 22.

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

[0039] The plates 25 and 26 have a flat plate shape parallel to the X-Y plane defined by the X direction and the Y direction. The plates 25 and 26 have a rectangular shape that is long in the X direction. The plate 25 and the plate 26 are arranged in the Z direction in this order.

[0040] The width of the plate 25 in the Y direction is larger than the width of the plate 26 in the Y direction. The edge of the plate 25 is surrounded by the covers 21 and 22, and the edge of the plate 26 is surrounded by the covers 23 and 24. As shown in FIG. 2, a part of the upper surface of the plate 25 is exposed. A grip 91 described later is disposed at this portion.

[0041] Inside the case 20, as shown in FIG. 3, spaces 20A and 20B are respectively formed. The space 20A is defined by covers 21, 22 and plate 25, and the space 20B is defined by covers 23, 24 and plate 26. The length of the space 20A in the Z direction is larger than the length of the space 20B in the Z direction.

[0042] The drive unit 30 rotates the rotating members 50A and 50B respectively. The drive unit 30 is arranged inside the case 20 as shown in FIG. 3. Here, a configuration example of the drive unit 30 will be described.

[0043] The drive unit 30 has, as shown in FIG. 3, a power source 31, a motor 33, and gears 35, 37A, and 37B. The power source 31 and the motor 33 are arranged 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 other types of power sources may also be used.

[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. The 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 power transmission members that transmit the 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 respectively attached to the shafts 60 of the rotating members 50A and 50B described later.

[0047] The gears 35, 37A, and 37B are formed 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 respectively. The teeth of the gears 35, 37A, and 37B are parallel in the Z direction.

[0048] The gear 35 meshes with the gears 37A and 37B respectively. Thus, 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 revolutions per unit time of the gears 37A and 37B is, for example, equal to the number of revolutions per unit time of the gear 35. The number of revolutions is, in one example, 150 rpm, but is not limited to this example. The number of revolutions per unit time of the gears 37A and 37B may be adjusted to be different from the number of revolutions per unit time of the gear 35, for example. Although the gear 35 meshes with the gears 37A and 37B respectively, the combination of the gears 35, 37A, and 37B is not limited to this example.

[0050] In the drive unit 30, when the power switch SW (shown in FIG. 2) arranged on the cover 21 of the case 20 is operated, the start and stop of the rotational movement of the motor 33 are switched. The power switch SW is arranged, for example, at the upper end of the cover 21.

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

[0052] The rotating member 50A is arranged side by side with the rotating member 50B at an interval in the X direction. The rotating member 50A rotates about the axis CZ1 (shown in FIG. 3), and the rotating member 50B rotates about the axis CZ2 (shown in FIG. 3). In the present embodiment, the axis CZ1 corresponds to the first axis, and the axis CZ2 corresponds to the second axis. The axes CZ1 and CZ2 are axes parallel to the Z direction.

[0053] In this embodiment, the container 4A is disposed with respect to the rotating member 50A, and the container 4B is disposed with respect to the rotating member 50B. The rotating members 50A and 50B each have 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 respectively disposed on 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 in which the diameter decreases along the Z direction. As another example, the main body 51 may have a hemispherical shape or a frustum of a cone shape.

[0057] As shown in FIG. 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 disposed. The surface 511 has, for example, a convex shape protruding in the Z direction.

[0058] As shown in FIG. 6, the shaft 60 passes through the 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. Thereby, the main body 51 rotates about the axis CZ1 together with the shaft 60. The shape of the attachment portion 513 is appropriately changed according to the shape of the shaft 60 and the like.

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

[0060] The two magnets 70 attract the stirrer G. In the present embodiment, there are two magnets 70 arranged in 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 disc shape, but is not limited to this example. The two magnets 70 are exposed from the surface 511, for example. The magnet 70 may be arranged in the main body 51 so as not to be exposed from the surface 511.

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

[0062] As shown in FIG. 6, the magnet 70 is arranged, for example, in the mounting portion 515 of the main body 51. The magnet 70 does not protrude more than the surface 511, for example. The mounting portion 515 is a concave portion that is recessed from the surface 511.

[0063] In the example shown in FIG. 6, the mounting portion 515 is formed on the inclined surface 511. The shape of the mounting portion 515 is appropriately changed according to the shape of the magnet 70 and the like. 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. The permanent magnet is a neodymium magnet in one example, but is not limited to this example. The magnet 70 may be formed by one magnet or may be formed by a plurality of magnets. The magnet 70 is formed, for example, by stacking a plurality of magnets.

[0065] The magnet 70 may have its S pole or N pole located on the side facing the container body 40. For example, the two magnets 70 may be arranged such that the same poles face the container body 40. As another example, one of the two magnets 70 may be arranged such that its S pole faces the container body 40, and the other of the two magnets 70 may be arranged such that its N pole faces the container body 40.

[0066] A part of each of the four contact portions 80 protrudes more than the surface 511. Thereby, the four contact portions 80 can contact the container body 40 of the container 4A to be arranged. In the present embodiment, there are four contact portions 80 arranged on the main body 51, but the number of contact portions 80 to be arranged may be three or less, or five or more.

[0067] As shown in FIG. 5, the four contact portions 80 are arranged away from the axis CZ1 in the radial direction R. The four contact portions 80 are arranged, for example, at predetermined intervals in the circumferential direction θ. The contact portion 80 is preferably arranged in the vicinity of the magnet 70.

[0068] As shown in an enlarged view above FIG. 6, the contact portion 80 is arranged, for example, on the attachment portion 517 of the main body 51. The attachment portion 517 is a recess that is recessed from the surface 511. In the example shown in FIG. 6, the attachment portion 517 is formed on the inclined surface 511. The shape of the attachment portion 517 is appropriately changed according to the shape of the contact portion 80 and the like.

[0069] The contact portion 80 is, for example, a plunger (in one 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 more than the main body 81. In other words, in the contact portion 80, the ball 83 protrudes the most with respect to the surface 511.

[0071] The biasing member 85 biases the ball 83 along the extending direction of the main body 81. The position of the ball 83 relative 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] Subsequently, the relationship between the rotating member 50A and the container 4A will be described with reference to FIG. 6.

[0073] The axis of the container body 40 of the container 4A is located 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 protruding 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 the space. The main body 51 of the rotating member 50A has a shape corresponding to the shape of the bottom of the container 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 the same curvature as the curvature of the bottom wall 401 of the container body 40. In other words, the surface 511 has a convex shape protruding toward the bottom wall 401 of the container body 40.

[0076] As a result, the surface 511 faces the bottom wall 401 along the bottom wall 401. As a result, the distance between the two magnets 70 and the stirrer G can be reduced, and the stirrer G is more likely to be attracted to the magnet 70.

[0077] At the contact portion 80, the ball 83 protrudes more than the surface 511 and the magnet 70. Therefore, when the container 4A is arranged, the spherical surface of the ball 83 contacts the bottom wall 401. At this time, the biasing member 85 biases the ball 83 toward the bottom wall 401. On the other hand, a gap SP is formed between the magnet 70 and the bottom wall 401. The gap SP is formed between the surface 511 and the bottom wall 401 along the surface 511.

[0078] The stirring tool G is attracted to the magnet 70 with the bottom wall 401 interposed 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 stirring tool G rotates about the axis CZ1 so as not to overlap the axis CZ1 in the Z direction.

[0079] In the above description, the rotating member 50A has been mainly described. However, the rotating member 50B is also configured in the same manner as the rotating member 50A, and the relationship between the rotating member 50B and the container 4B is also the same as the relationship between the rotating member 50A and the container 4A.

[0080] As shown in FIGS. 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 and 4B. The holding portion 27 is disposed above the plate 26. Thereby, the holding portion 27 can hold the container body 40 located above the rotating members 50A and 50B. Here, a 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, sandwiching the rotating members 50A and 50B in the Y direction.

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

[0083] The first holding portion 28 and the second holding portion 29 have inner surfaces that can conform to the shape 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 arranged in the X direction, and the second holding portion 29 has recesses 291A and 291B arranged 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 the present embodiment, the container 4A is held by the recess 281A and the recess 291A, and the container 4B is held by the recess 281B and the recess 291B.

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

[0086] The cushioning material F has a predetermined thickness. Thereby, even if the container body 40 has different sizes, the holding portion 27 can hold it by the deformation of the cushioning material F. Further, the cushioning material F may have a function as an anti-slip to suppress the rotation of the container body 40 when the rotating members 50A, 50B are rotated.

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

[0088] In FIG. 7, the second holding portion 29 at the first position P1 is shown by a solid line, and the second holding portion 29 at the second position P2 is shown by a broken line. The recesses 291A, 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 in 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 according to the position of the second holding portion 29 at the second position P2.

[0090] In the case 20, an adjustment member 93 for adjusting the position of the second holding part 29 is arranged. The adjustment member 93 is, for example, a toggle clamp in one example, but is not limited to this example. The adjustment member 93 is arranged on the cover 24, for example. In FIG. 7, the position of the adjustment member 93 corresponding to the first position P1 is shown by a solid line, and the position of the adjustment member 93 corresponding to the second position P2 is shown by a dashed line.

[0091] When the grip 931 of the adjustment member 93 is lifted 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. On the contrary, 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] The second holding part 29 is pressed by the adjustment member 93 in the direction approaching the first holding part 28 (the direction opposite to the Y direction) at the first position P1. Thereby, the first holding part 28 and the second holding part 29 can hold the container body 40 by the restraining force of the adjustment member 93. That is, the container body 40 is held by the holding part 27, and rotation with the rotating members 50A and 50B is suppressed.

[0093] As shown in FIG. 5, the stirring device 10 may further include a grip 91. The grip 91 is formed 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] The grip 91 has, for example, a rod-shaped portion 911 extending in the X direction. The rod-shaped portion 911 does not overlap the plate 25 in the Z direction. Thereby, when the user holds the rod-shaped portion 911, the user's hand is less likely to contact the case 20. Since the power switch SW is arranged below the rod-shaped portion 911, the user can easily operate the power switch SW while holding the grip 91.

[0095] Next, a configuration example of the injection device 1 will be described. FIG. 8 is a schematic perspective view showing a configuration example of the injection device 1 shown in FIG. 1. As described with reference to FIG. 1, the injection device 1 includes a holder 2 and an 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 to be able to attach and detach the containers 4A and 4B. The grip 6 and the trigger 7 are attached to the base 5.

[0097] The user can operate the valves 41 of the containers 4A and 4B by the trigger 7. When the containers 4A and 4B are attached, the trigger 7 is positioned above the valves 41. The trigger 7 is rotatably supported 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 container 4A and the container 4B, respectively, through, for example, a tube (not shown). The proximal end portion of the static mixer 9 is connected to the adapter 8. The static mixer 9 is fixed to the adapter 8 by a fixture 11.

[0099] The static mixer 9 mixes the agent A from the container 4A sent through the adapter 8 and the agent B from the container 4B sent through the adapter 8. A plurality of elements whose rotation directions are alternately switched are arranged in the static mixer 9.

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

[0101] When Agent A and Agent B pass through the inside of the static mixer 9, they are stirred and mixed by a plurality of elements, and polyurea is generated. The generated polyurea is injected from the injection holes 9a of the static mixer 9.

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

[0103] Before arranging the injection device 1 to which the containers 4A and 4B are attached on the stirring device 10, the grip 931 of the adjustment member 93 is operated to move the second holding portion 29 to the second position P2.

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

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

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

[0107] The rotating members 50A and 50B rotate while the balls 83 are 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, rotation together with the rotating members 50A and 50B is suppressed.

[0108] The stirring tool G is adsorbed to the magnet 70 with the bottom wall 401 interposed therebetween. When the rotating members 50A and 50B rotate about the axes CZ1 and CZ2, the stirring tool G rotates about the axes CZ1 and CZ2 together with the magnet 70. By rotating the rotating members 50A and 50B and the stirring tool G with respect to the container body 40, the contents 42A and 42B are stirred respectively.

[0109] In a state where the contents 42A and 42B are being stirred by the stirring device 10, the tip of the static mixer 9 is directed toward the work location or workpiece where the polyurea is to be applied, and the trigger 7 is pressed. As a result, the A agent and the B agent are stirred and mixed in the static mixer 9, and the polyurea is ejected from the ejection holes 9a. Thus, in the ejection system 100, the ejection operation by the ejection device 1 can be performed while the stirring operation by the stirring device 10 is being carried out.

[0110] With the stirring device 10 and the ejection system 100 configured as described above, it is possible to achieve good ejection of the contents contained in the container. Specifically, the rotating member 50A of the stirring device 10 has the magnet 70 and the contact portion 80.

[0111] The contact portion 80 protrudes more than the surface 511 of the main body 51. Therefore, when the container 4A is disposed above the rotating member 50A, the bottom wall 401 of the container body 40 contacts the contact portion 80. The stirring tool G is adsorbed to the magnet 70 with the bottom wall 401 interposed therebetween.

[0112] On the other hand, since a gap SP is formed between the surface 511 and the bottom wall 401 and between the magnet 70 and the bottom wall 401, it is difficult for the surface 511 and the magnet 70 to contact the bottom wall 401, and the rotation of the rotating member 50A is hardly hindered.

[0113] When the rotating member 50A is rotated in this state, the contact portion 80 rotates while contacting the bottom wall 401. By rotating the rotating member 50A and the stirring tool G with respect to the container body 40, the content 42A is stirred by the stirring tool G.

[0114] In the case of the stirring device 10 according to the present embodiment, since the rotating member 50A can rotate stably about the axis CZ1, the stirring tool G can surely stir the content 42A. As a result, the content 42A stirred from the container 4A can be ejected, so that good ejection can be realized.

[0115] The content 42A may contain a pigment and a resin component or the like. Since the pigment and the resin component have a large specific gravity among the materials constituting the content 42A, they may precipitate or aggregate on the bottom wall 401 and thus become precipitates.

[0116] When the stirring tool G rotates stably with respect to the container body 40 about the axis CZ1, the pigment and the resin component are dispersed in the content 42A. In other words, when stirred by the stirring tool G, the pigment and the resin component float from the bottom wall 401. Further, since the stirring tool G rotates while contacting the bottom wall 401, it is easy to disperse the precipitates and aggregations due to the pigment and the resin component on the bottom wall 401.

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

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

[0119] The pigment and the resin component may clog the inflow hole 431 and cause the inflow hole 431 to be partially or completely blocked. By using the stirring device 10, the content 42A can be mechanically stirred as described above.

[0120] As a result, the pigment and resin components can be dispersed in the content 42A. As a result, the pigment and resin components are less likely to precipitate or aggregate in the vicinity of the bottom wall 401, so that clogging of the inflow hole 431 is suppressed.

[0121] If the pigment and resin components precipitate or aggregate in the vicinity of the bottom wall 401, it is difficult for the user to disperse the pigment and resin components only by shaking the container 4A up and down. Therefore, by mechanically stirring the content 42A with the stirring device 10, the pigment and resin components can be dispersed in the content 42A. With the stirring device 10, the stirring operation can be labor-saving as compared with the case where the user shakes the container 4A up and down by hand.

[0122] The contact portion 80 has a ball 83 rotatably supported. In the contact portion 80, since the ball 83 protrudes the most, the spherical surface of the rotating ball 83 contacts the bottom wall 401 of the container body 40.

[0123] As a result, the frictional resistance between the contact portion 80 and the bottom wall 401 can be reduced, and the rotating member 50A can be rotated more stably. By reducing the frictional resistance, the power of the drive portion 30 for rotating the rotating member 50A can be reduced. Since the position of the ball 83 can be displaced by a load or the like from the container body 40, it can follow a change in the position of the container body 40 in the Z direction.

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

[0125] As a result, the rotating member 50A and the container body 40 are less likely to come into contact with each other, and the rotating member 50A can be rotated more stably. Further, by arranging the contact portion 80 in the vicinity of the magnet 70, when the container 4A is arranged, a gap SP between the bottom wall 401 of the container body 40 and the magnet 70 can be surely formed. Thereby, wear due to the contact between the main body 51 (surface 511) and the bottom wall 401 is less likely to occur.

[0126] In the present embodiment, the stirring device 10 has a rotating member 50B. The rotating member 50B is configured in the same manner as the rotating member 50A. Also in the content 42B of the container 4B, it can be mechanically stirred in the same manner as the container 4A. Further, with the stirring device 10, the contents 42A and 42B of the containers 4A and 4B can be stirred simultaneously.

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

[0128] In particular, when spraying a two-component resin, if the mixing ratio of the two liquids to be reacted does not reach the desired mixing ratio, there is a concern that when the sprayed resin undergoes a chemical reaction, either the main agent or the curing agent may be in excess and remain unreacted, or the resin may not be sufficiently cured as a polymer material.

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

[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 and 50B interposed therebetween.

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

[0132] Furthermore, in this embodiment, as described with reference to FIG. 7, the second holding portion 29 is configured to be position - adjustable between a first position P1 and a second position P2. Thereby, the attachment and detachment of the container body 40 to and from the stirring device 10 can be easily performed. Since the holding portion 27 prevents the bottom wall 401 of the container body 40 from contacting the magnet 70, the rotation of the container body 40 can be suppressed even if the restraining force by the adjusting member 93 (for example, toggle clamp) is not large.

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

[0134] Specifically, the user can operate the power switch SW with the hand holding the grip 91 to start or stop the rotation of the rotating members 50A and 50B, and can press the trigger 7 of the holder 2 with the hand holding the grip 6 to inject the polyurethane from the injection hole 9a.

[0135] That is, the user can perform the injection operation of the polyurethane by the injection device 1 while performing the stirring operation by the stirring device 10. Heretofore, the user could manually shake the aerosol can before construction to stir the contents, but it was difficult to continue the stirring operation during injection.

[0136] For example, as a stirring device according to a comparative example, there is a device for shaking a container or applying vibration to the container. Such a stirring device is premised on the stirring operation before construction, and since the device itself was large-scale, it was difficult to perform the stirring operation during construction.

[0137] When the content contains materials with different specific gravities or fine additives, there may be a difference in the composition of the ejected content between the start point and the end point of construction. This can cause the resulting coating film to become non-uniform or cause curing defects due to unreacted parts in the chemical reaction.

[0138] In this embodiment, since the injection operation of the polyurea can be performed while performing the stirring operation, it is less likely that a difference will occur in the composition of the ejected content between the start point and the end point of construction. As a result, with the injection system 100 including the stirring device 10 according to this embodiment, a good coating film can be formed.

[0139] With the injection system 100, since it can be carried while the container 4A, 4B and the injection device 1 are attached to the stirring device 10, it has excellent portability. Thereby, the injection system 100 can 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, 4B from the holder 2 after the stirring operation. Thereby, the work at the site can be performed more efficiently.

[0141] Since the contents 42A, 42B are mechanically stirred by the stirring device 10, the stirring time, the rotation speed, etc. can be specified in advance. Thereby, it is possible to prevent variations in the stirring operation due to differences among users. In other words, with the stirring device 10, the stirring operation can be quantified, and it becomes easier to manage the quality of the ejected content.

[0142] As described above, in this embodiment, it is possible to provide the stirring device 10 and the injection system 100 capable of realizing good injection of the contents of the container. In addition to what has been described above, various favorable effects 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 configurations can be applied without departing from the gist of the present invention.

[0143] In this embodiment, an injection device for injecting polyurea has been described as the injection device 1, but the configuration disclosed in this embodiment can also be applied to injection devices for injecting other types of materials. In this case, appropriate contents for obtaining the materials to be injected into the containers 4A and 4B are accommodated.

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

[0145] In this embodiment, an 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 protruding a part of the main body 51 from the surface 511. At this time, it is preferable that the protruding surface has a spherical shape such as a hemispherical surface.

[0147] In this 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 drive unit 30 may further have a control unit that controls the current supplied to the electromagnet etc.

[0148] By adjusting the current supplied to the electromagnet by the control unit, it is possible to control the polarity of the electromagnet, the magnitude of the magnetic force acting on the stirrer G from the electromagnet, and the like. For example, by changing the direction of the current by the control unit, the polarity from the electromagnet toward the container body 40 can be switched 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 or a belt that transmits the rotation of the pulley.

[0150] In the present embodiment, an example in which the case 20 of the stirring device 10 has the holding portion 27 has been disclosed, but an element corresponding to the holding portion 27 may be provided in the injection device 1, or if necessary, the user may hold the container body 40 so as not to rotate.

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

Description of Reference Numerals

[0152] 1... Injection device, 2... Holder, 3... Injection nozzle, 4A, 4B... Containers, 10... Stirring device, 20... Case, 27... Holding portion, 28... First holding portion, 29... Second holding portion, 30... Driving portion, 40... Container body, 42A, 42B... Contents, 50A, 50B... Rotating members, 70... Magnet, 80... Contact portion, 81... Body, 83... Ball, 85... Biasing member, 91... Grip, 93... Adjusting member, 100... Injection system, 511... Surface, G... Stirrer.

Claims

1. A stirring device used in at least one container that houses a content and a stirrer that adsorbs to a magnet and stirs the content, a case, a first rotating member disposed in the case and rotating about a first axis, and a driving unit disposed inside the case for rotating the first rotating member. The first rotating member has a first surface facing a first bottom wall of a first container held above the first rotating member, a first magnet to which a first stirrer housed in the first container adsorbs, and a first contact portion that protrudes from the first surface and contacts the first bottom wall. Stirring device.

2. The first contact portion is rotatably supported and has a ball that protrudes from the first surface and contacts the first bottom wall. The stirring device according to claim 1.

3. A plurality of the first contact portions are arranged in a circumferential direction centered on the first axis. The stirring device according to claim 1.

4. The first surface has a convex shape protruding toward the first bottom wall. The stirring device according to claim 1.

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

6. A plurality of the first magnets are arranged in a circumferential direction centered on the first axis. The stirring device according to claim 5.

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

8. The holding part has a first holding part and a second holding part arranged with the first rotating member therebetween. The stirring device according to claim 7. **Claim 9** The second holding part is configured to be adjustable in position between a first position facing the first holding part and a second position not facing the first holding part. The stirring device according to claim 8. **Claim 10** The stirring device further includes a grip disposed on the case. The stirring device according to claim 1. **Claim 11** The stirring device further includes a second rotating member disposed on the case and rotating about a second axis parallel to the first axis. The driving part rotates both the first rotating member and the second rotating member. The second rotating member has a second surface facing a second bottom wall of a second container held above the second rotating member, a second magnet to which a second stirring tool accommodated in the second container adheres, and a second contact part protruding from the second surface and contacting the second bottom wall. The stirring device according to claim 1. **Claim 12** The case has a holding part capable of holding the first container and the second container above the first rotating member. The stirring device according to claim 11. **Claim 13** A stirring device used for at least one container that houses contents and a stirring tool that adheres to a magnet and stirs the contents, a case, a first rotating member disposed on the case and rotating about a first axis, and a driving part disposed inside the case and rotating the first rotating member. The first rotating member has a first surface facing a bottom wall of the at least one container held above the first rotating member and a first magnet to which the stirring tool adheres. The case has a holding part capable of holding the at least one container above the first rotating member. The holding part includes a first holding part and a second holding part arranged with the first rotating member therebetween. The first holding part has a first recess. The second holding part has a second recess that, together with the first recess, holds the at least one container. The second holding part is configured to be position - adjustable between a first position where the second recess faces the first recess and a second position where the second recess does not face the first recess. Stirring device.

14. The case further has an adjusting member for switching the position of the second holding part between the first position and the second position. The stirring device according to claim 13.

15. The first holding part and the second holding part further have cushioning materials arranged in the first recess and the second recess. The stirring device according to claim 14.

16. A stirring device according to any one of claims 1 to 15, and an injection device capable of attaching the at least one container, are provided. Injection system.

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