Foam generating device and foam generating method

Abstract

This invention provides a foam generating apparatus and a foam generating method capable of producing high-density foam. The foam generating apparatus includes: a cylindrical body; an outer cylinder; and a middle cylinder located between the cylindrical body and the outer cylinder, the middle cylinder rotating relative to the cylindrical body and the outer cylinder. Furthermore, the foam generating method includes: a first step of mixing water and a foam material; a second step of supplying air to the mixed mixture to generate foam; and a third step of making the foam finer between multiple cylinders.

Description

Technical Field

[0001] This invention relates to a foam generating apparatus and a foam generating method. In particular, it relates to a foam generating apparatus and a foam generating method for making soapy water, etc., foam. Background Technology

[0002] Conventionally, a type of bubbler has been used (Patent Document 1). Utilizing... Figure 1 The cross-sectional view illustrates an existing foamer. The existing foamer is cylindrical. A disc-shaped foam generating section 4 is disposed inside the cylindrical container 5. The foam generating section 4 is connected to the holding section 3 by a shaft 6. The foam generating section 4 has multiple through holes 7. If the holding section 3 is moved up and down, the foam generating section 4 moves, generating foam from the soapy water 8 through the through holes 7. Once foam is formed, the cover 2 is removed to use the foam.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2015-139545 Summary of the Invention

[0004] However, with existing foam generators, the foam density is low. Therefore, the object of this invention is to provide a foam generating apparatus and a foam generating method capable of producing high-density foam.

[0005] To address the aforementioned issues, a foam generating apparatus is used, comprising: a cylindrical body; an outer cylinder; and a middle cylinder located between the cylindrical body and the outer cylinder, wherein the middle cylinder rotates relative to the cylindrical body and the outer cylinder.

[0006] In addition, a foam generation method is used, which includes: a first step of mixing water and foam material; a second step of supplying air to the mixture to generate foam; and a third step of making the foam into fine particles between multiple cylinders.

[0007] The bubbler, foam generating apparatus and foam generating method of this application are capable of generating high-density foam. Attached Figure Description

[0008] Figure 1 This is a cross-sectional view of an existing foam generating device.

[0009] Figure 2 This is a side view of the foam generating apparatus of Embodiment 1.

[0010] Figure 3 (a) to (c) are enlarged cross-sectional views of the mixing section and the periphery of the foam generating section of the foam generating apparatus in Embodiment 1 of the initial process.

[0011] Figure 4(a) to (c) are enlarged cross-sectional views of the mixing section and the periphery of the foam generating section of the foam generating apparatus in Embodiment 1 of the final process.

[0012] Figure 5 This is a cross-sectional view of the rotating part of the foam generating device according to Embodiment 1.

[0013] Figure 6 (a) is a perspective view of the middle cylinder of Embodiment 1, and (b) is a top view of the base of Embodiment 1.

[0014] Figure 7 This is a perspective view of the back side of the base in Embodiment 1.

[0015] Figure 8 This is a perspective view of the middle cylinder in Embodiment 1.

[0016] Figure 9 (a) to (b) are perspective views of the middle cylinder 34 of Embodiment 1, and (c) is a view showing the interior of the rotating part of a modified example of the middle cylinder 34 of Embodiment 1.

[0017] Figure 10 This is a cross-sectional view of the foam generating apparatus of Embodiment 2.

[0018] Figure 11 This is a cross-sectional view of the foam generating device according to Embodiment 3.

[0019] Figure 12 This is a cross-sectional view of the foam generating device according to Embodiment 3.

[0020] Figure 13 This is a cross-sectional view of the foam generating device according to Embodiment 4.

[0021] Figure 14 This is a cross-sectional view of the foam generating device according to Embodiment 4.

[0022] Figure 15 (a) to (d) are cross-sectional views of the periphery of the columnar body in Embodiment 4.

[0023] Figure 16 This is a cross-sectional view of the circulation system portion of the foam generating device in Embodiment 5.

[0024] Figure 17 (a) to (d) are cross-sectional views of the foam generating apparatus of Embodiment 6. Detailed Implementation

[0025] The following describes the implementation methods, but the invention is not limited to the following.

[0026] (Implementation Method 1)

[0027] <Structure>

[0028] use Figure 2 The foam generating apparatus 17a of Embodiment 1 is described. Figure 2 This is a cross-sectional view of the foam generating device 17a. The foam generating device 17a has a main body 52, a rotating part 51, and a driving part 31.

[0029] The main body 52 supplies water, foam material, air, etc. to the rotating part 51. It also has a control part. Alternatively, the control part may be located in other parts.

[0030] The rotating part 51 has a rotating body that produces foam from water, foam material and air.

[0031] The drive unit 31 is the power source that makes the rotating body of the rotating unit 51 rotate.

[0032] <Rotating part 51>

[0033] The rotating part 51 has an outer cylinder 33, an inner cylinder 35, and a middle cylinder 34. Foam is generated by rotating the middle cylinder 34 between the outer cylinder 33 and the inner cylinder 35.

[0034] The outer cylinder 33 is the outer frame facing outward, and it is cylindrical in shape.

[0035] The inner cylinder 35 is located in the center and is cylindrical in shape.

[0036] The middle cylinder 34 is located between the outer cylinder 33 and the inner cylinder 35, and is cylindrical in shape.

[0037] In addition, the middle cylinder 34 only needs to rotate relative to the inner cylinder 35 and the outer cylinder 33.

[0038] (Middle tube 34)

[0039] The outer cylinder 33 and inner cylinder 35 are simple cylindrical shapes. The middle cylinder 34, on the other hand, is a double-layered cylindrical shape. This double-layered cylindrical shape has an inner side 34b and an outer side 34a, each engaging with one surface of the bottom surface 34c. Furthermore, it has a lower side 34d on the other surface. The lower side 34d is a shape that extends the inner side 34b. A shaft 47 passes through the center of the bottom surface 34c and is connected to it. A drive unit 31 rotates the shaft 47.

[0040] (Mixing Section 46)

[0041] A mixing section 46 is located between the lower sides 34d, through which water and foam material are supplied via a pipe 45c. In the mixing section 46, a concave liquid storage tank 48 (described below) is surrounded by the lower sides 34d; by rotating the lower sides 34d, water and foam material are mixed. That is, water and foam material are mixed using the rotation of the middle cylinder 34. No separate rotating mechanism is required, resulting in high efficiency.

[0042] Even if it is not the above-described rotating structure, the mixing section 46 can be configured in the same way in the various rotating structures shown below.

[0043] (Export Department 32)

[0044] The outlet 32 ​​is located at the end of the middle cylinder 34 and supplies the produced foam to the outside of the device.

[0045] (Foam Generation Section 39)

[0046] The foam generating section 39 is located below the mixing section 46. The foam generating section 39 has a porous section 40 for supplying air. Air is supplied from the air supply section 55 of the main body 52 via pipe 45d. Additionally, a mixture of water and soap is supplied from pipe 45c and mixed with air from the porous section 40 to generate foam.

[0047] (Liquid storage tank 48)

[0048] The mixing section 46 has a liquid storage tank 48. The liquid storage tank 48 is located on the upper surface of the foam generating section 39. The liquid storage tank 48 stores water and foam material. A shaft 47 is located in the liquid storage tank 48, and the water and foam material are mixed by rotating the shaft 47. Furthermore, the mixing section 46 is surrounded by a lower side 34d, so foam is generated between the mixing section 46 and the lower side 34d by rotating the inner cylinder 35.

[0049] Additionally, a liquid storage tank 48 is located on a base 42, and a foam generating section 39 is provided within a base support portion 42a that supports the base 42. The base 42 supports an outer cylinder 33, etc.

[0050] <Drive Section 31>

[0051] The drive unit 31 is located above the rotating unit 51. The drive unit 31 uses a motor or the like to rotate the shaft 47. The shaft 47 is connected to the middle cylinder 34, so the middle cylinder 34 rotates. The outer cylinder 33 and the inner cylinder 35 are fixed.

[0052] <Main Body 52>

[0053] The foam generating section 39 is located in the lower part of the main body 52 of the inner cylinder 35. The foam generating section 39 has a porous section 40 for supplying air. Air is supplied from the air supply section 55 via pipe 45d. A mixture of water and soap is separately supplied from pipe 45c and mixed with the air from the porous section 40 to generate foam. The air supply section 55 may be an air pump or the like.

[0054] The liquid storage tank 48 is located on the upper surface of the main body 52 of the foam generating section 39. The liquid storage tank 48 stores water and foam material. The liquid storage tank 48 has a shaft 47, and the water and foam material are mixed by rotating the shaft 47.

[0055] The water supply unit 37 is a pump or the like that that supplies water, and is connected to a tap water pipe and a water tank to supply water to pipe 45b. Preferably, it is capable of controlling the amount of water supplied.

[0056] The material supply unit 36 ​​supplies foam material powder as a slurry or the like. For example, the material supply unit 36 ​​is connected to a hose containing foam material slurry and supplies the slurry to the pipe 45a. Preferably, the slurry delivery rate can be adjusted.

[0057] Pipe 45c is the pipe that connects pipe 45a and pipe 45b. Pipe 45c is connected to mixing unit 46.

[0058] Ideally, the entire system is controlled by the control unit 54. However, each supply unit and drive unit 31 may also have its own control unit. By adjusting the supply of water, foam material, and air, as well as the return speed of the middle cylinder 34, the degree (quality, grade, density, etc.) of the foam can be controlled.

[0059] <Craftsmanship>

[0060] The middle cylinder 34 is rotated by the drive unit 31, and water and foam material are supplied from the material supply unit 36 ​​and the water supply unit 37. In addition, air is supplied from the air supply unit 55. The outer cylinder 33 and the inner cylinder 35 are fixed.

[0061] <Process 1>: Initial Stage

[0062] use Figure 3 (a)~ Figure 3 (c) describes the initial process. Figure 3 (a)~ Figure 3 (c) is an enlarged cross-sectional view of the periphery of the mixing section 46 and the foam generating section 39.

[0063] (1) Figure 3 (a)

[0064] Water and foam material are conveyed from pipe 45c to mixing section 46. Water and foam material are stored in storage tank 48. Water and foam material are mixed due to the rotation of shaft 47.

[0065] (2) Figure 3 (b)

[0066] Water and foam material are further supplied, overflowing from the storage tank 48. The mixing section 46 is filled with water and foam material. As the lower side 34d also rotates, the water and foam material are further mixed.

[0067] (3) Figure 3 (c)

[0068] Water and foam material move through opening 38 to foam generating section 39. Additionally, foam is generated and transported along with the water and foam material.

[0069] In the foam generating section 39, air is supplied from the porous section 40. Foam is generated in section 49.

[0070] Next, proceed to process 2.

[0071] <Process 2>: Final Stage

[0072] use Figure 4 (a)~ Figure 4 (c) describes the final stage of the process. Figure 4 (a)~ Figure 4 (c) is a cross-sectional view of the periphery of the inner cylinder 35, the middle cylinder 34 and the outer cylinder 33.

[0073] (4) Figure 4 (a)

[0074] Foam 49 fills the space between the outer cylinder 33 and the outer side 34a of the middle cylinder 34 through the opening 38 from the foam generating section 39. As the outer side 34a rotates, the foam 49 becomes finer foam.

[0075] (5) Figure 4 (b)

[0076] Foam 49 extends beyond the outer side 34a and fills the space between the outer side 34a and the inner cylinder 35. As the outer side 34a rotates, foam 49 becomes smaller.

[0077] (6) Figure 4 (c)

[0078] Foam 49 fills the inner cylinder 35 through the lower part of the inner cylinder 35. The inner side 34b of the middle cylinder 34 is located in the inner cylinder 35. As the inner side 34b rotates, the foam 49 becomes smaller.

[0079] The export department 32 supplies foam 49 to the outside world.

[0080] <Protrusion 41>

[0081] Figure 5 This is a cross-sectional view of the rotating part 51. Figure 6 (a) represents a three-dimensional view of the middle tube 34. Figure 6 (b) represents the top view of the base 42.

[0082] Preferably, the middle tube 34 has protrusions 41. The foam is finer and denser. Figure 5 In the middle section, protrusions 41 are provided on both sides of the outer side 34a. The protrusions 41 are triangular prism-shaped in the direction of expansion relative to the rotation direction. In addition, not limited to the middle cylinder 34, it is preferable that the protrusions 41 are provided at any part inside the rotating part 51. The protrusions 41 are preferably triangular prism-shaped, but they can also be triangular pyramid-shaped, dot-shaped, square prism-shaped, or polygonal.

[0083] The shaft 47 has irregularities around its top end, and the inner surface of the liquid storage tank 48, which is opposite to these irregularities, also has irregularities. By rotating the shaft 47, water and foam material are mixed in the liquid storage tank 48.

[0084] Figure 7 This is a perspective view showing the rear side of the base 42, and also showing the outer cylinder 33 and the base support 42a. Pipe 45d is connected to the air supply port 40a, and pipe 45c is connected to the foam material supply port 45e. The foam generating unit 39 is located inside.

[0085] exist Figure 8 The image shows a perspective view of the inner tube 34 as an example. The protrusions 41 are in the shape of thin plates or sheets and are formed in a spiral shape. Such protrusions 41 can prevent foam from being trapped inside the rotating part 51. That is, if the inner tube 34 rotates, the foam moves upward by means of the protrusions 41, and the foam moves forward. Along the long side of the inner tube 34, the protrusions 41 are arranged sequentially around the inner tube 34.

[0086] Furthermore, the protrusion 41 is not limited to being located on the middle cylinder 34, but can also be located on the surface of the middle cylinder 34 and the outer cylinder 33 opposite to the middle cylinder 34. It is arranged in a spiral shape in the direction of foam movement and propulsion.

[0087] Figure 9 This represents a variation of protrusion 41. Figure 9 of (a), Figure 9 (b) is a three-dimensional view of the middle tube 34. Figure 9 In (a), the protrusion 41 reaches the tip. The tip has a foam-generating part 39 inside. Figure 9 In (b), the protrusion 41 has a first protrusion 41a and a second protrusion 41b. The directions of the first protrusion 41a and the second protrusion 41b differ by approximately 90 degrees. The first protrusion 41a causes the foam to move upward, and the second protrusion 41b causes the foam to move horizontally and agitate the foam.

[0088] The first protrusion 41a causes the foam to move upwards, forcibly moving it. The second protrusion 41b causes the foam to move horizontally, further agitating it to achieve a higher density. As a result, high-density foam can be produced continuously.

[0089] <Effects of Implementation Method 1>

[0090] (a) The supply of air, foam material, and water, as well as the rotational speed of the middle cylinder 34, can be adjusted to adjust the quality and density of the foam. Subsequently, the rotating part 51 is used to further refine the foam and form it into a high-density foam.

[0091] (b) Water and foam material are mixed in mixing section 46 and storage tank 48, and then air is used to generate foam, thus easily forming homogeneous and high-density foam.

[0092] (c) High-density foam is formed along the longer path between the outer cylinder 33, the middle cylinder 34, and the inner cylinder 35. Furthermore, high-density foam refers to foam that can support coins even when placed on it. The foam will not disappear even when held in hand.

[0093] (d) The rotating part 51 is compact, and the drive part 31 thereon is even more compact.

[0094] (e) It has protrusions 41 on the outer side 34a, etc., so that foam can be further formed. It can force the foam to move and can effectively produce high-density foam.

[0095] (Implementation Method 2)

[0096] <Structure>

[0097] use Figure 10 Explanation of the foam generating apparatus 17b of Embodiment 2. Figure 10 This is a cross-sectional view of the foam generating device 17b. The foam generating device 17b, based on the foam generating device 17a of Embodiment 1, further includes a circulation system 65. Matters not described herein are the same as those in the foam generating device 17a of Embodiment 1.

[0098] The circulation system 65 also includes a receiving unit 62, a moving unit 63, and a returning unit 57.

[0099] The receiving section 62 is the part that receives foam from the outlet section 32. The receiving section 62 is inverted in shape and receives foam.

[0100] The return section 57 is a channel that allows the foam received by the receiving section 62 to return from the outer cylinder 33 to the main body (inside the outer cylinder 33).

[0101] The moving part 63 is a mechanism that moves the foam toward the main body within the returning part 57. For example, regarding the moving part 63, it is provided with... Figure 9 The screw of the protrusion 41 shown serves as the first screw 56a. The moving part 63 forcibly moves the foam by rotating.

[0102] Foam is produced in the foam generating device 17b, a portion of the foam is used above the receiving section 62, and the remaining foam is returned to the main body. This allows the foam to be circulated while maintaining its quality.

[0103] Furthermore, foam is received at receiving section 62, but the foam has a high density and is difficult to move to return section 57 by its own weight alone. Therefore, as... Figure 10As shown, the foam is preferably forcibly conveyed to the return section 57 using the second screw 56b. The second screw 56b is a mechanism in which multiple blades rotate to move the foam toward the moving section 63.

[0104] Alternatively, the first screw 56a and the second screw 56b may not be screws; as long as they are mechanisms that propel the movement of foam, they can be other moving mechanisms.

[0105] (Implementation Method 3)

[0106] In Embodiment 3, the inner cylinder 35 of Embodiments 1 and 2 is replaced with a columnar body 60a. Matters not described herein are the same as in Embodiments 1 and 2.

[0107] Figure 11 This is a cross-sectional view of the foam generating apparatus 17c according to Embodiment 3.

[0108] The gaps A and D between the outer cylinder 33 and the middle cylinder 34 are wider than the gaps B and C between the columnar body 60a and the outer cylinder 33. The foam flow is represented by foam flow 50.

[0109] The foam flows easily between the outer cylinder 33 and the middle cylinder 34 (gap A, D) and between the middle cylinder 34 and the column 60a (gap B, C), and moves toward the outlet 32.

[0110] The foam becomes smaller and, after filling the outer cylinder 33, moves towards the outlet 32.

[0111] Gap A and D can be larger than gap B and C, but this is not mandatory; rather, it is a preferred option.

[0112] Figure 12 yes Figure 11 A variation of the above.

[0113] Figure 12 This is a cross-sectional view of the foam generating apparatus 17d, in which the inner cylinder 35 of Embodiments 1 and 2 is replaced with a columnar body 60b. Matters not described herein are the same as in Embodiments 1 and 2.

[0114] The gap A between the upper surface of the outer cylinder 33 and the middle cylinder 34 is wider than the gap D.

[0115] Furthermore, the outlet 32 ​​is located above the gap D and the column 60b.

[0116] The flow of foam is represented by foam flow 50.

[0117] Here, the external shape of the columnar bodies 60a and 60b can be cylindrical, prismatic, or other columnar shapes. The interior of the columnar bodies 60a and 60b can be solid or hollow, but preferably has a structure that prevents foam from entering.

[0118] In addition, similar to embodiments 1 and 2, the middle cylinder 34 can be rotated without connecting the shaft 47 and the column 60a, or the shaft 47 and the column 60a can be connected so that they rotate together with the middle cylinder 34.

[0119] (Implementation Method 4)

[0120] Figure 13 This is a cross-sectional view showing the foam generating apparatus 17e according to Embodiment 4. The foam generating apparatus 17e is a foam generating apparatus 17e in which the inner cylinder 35 and the middle cylinder 34 of Embodiments 1 and 2 are replaced with a columnar body 60c. Matters not described are the same as in Embodiments 1 and 2.

[0121] In the foam generating apparatus 17e, there is no middle cylinder 34, and the columnar body 60c rotates relative to the outer cylinder 33. The space between the outer cylinder 33 and the columnar body 60c allows the foam to become fine.

[0122] The foam flow 50 moves from the foam generating section 39 toward the lower part of the columnar body 60c, then through the space between the outer cylinder 33 and the columnar body 60c toward the outlet section 32. During this movement, the foam becomes finer.

[0123] Figure 14 This is a cross-sectional view of a modified foam generating device 17f, which is a variation of the foam generating device 17e. Unlike the foam generating device 17e, the columnar body 60d in foam generating device 17f has multiple plate-like bodies 61. At these plate-like bodies 61, the foam has difficulty advancing, resulting in the formation of high-density foam.

[0124] There is one or more plate-like bodies 61. Figure 14 The foam has a first plate-shaped body 61b and a second plate-shaped body 61a in the direction of foam movement. The foam can grow in stages. Preferably, the diameter of the first plate-shaped body 61a is smaller than the diameter of the second plate-shaped body 61b. The smaller size of the first plate-shaped body 61a allows foam to pass through easily, while the larger outer diameter of the second plate-shaped body 61b makes it difficult for foam to pass through. Thus, the foam can grow in stages.

[0125] Preferably, the first plate-shaped body 61b is located lower than the center of the columnar body 60d, and the second plate-shaped body 61a is located upper than the center of the columnar body 60d. The first plate-shaped body 61b may also be the upper end of the columnar body 60d. The second plate-shaped body 61a may also be the lower end. Preferably, the first plate-shaped body 61b and the second plate-shaped body 61a are spaced apart to a certain extent, for example, preferably more than half the length of the columnar body 60d.

[0126] It is sufficient to have at least one plate-like body 61.

[0127] The plate-shaped body 61 is disc-shaped, and is a disc-shaped body with a larger outer perimeter than the columnar body 60d.

[0128] In addition, since it does not have a middle cylinder 34, it has a lower side 34d on the lower surface of the column 60d.

[0129] <Other variations>

[0130] Figure 15 (a)~ Figure 15 (d) represents a cross-sectional view of a deformed example of column 60 and outer cylinder 33.

[0131] exist Figure 15 In (a), it is a combination of a columnar body 60e with concave and convex sides and a cylindrical outer cylinder 33.

[0132] exist Figure 15 In (b), there is a combination of a columnar body 60f, which is wider at the top and narrower at the bottom, and a cylindrical outer cylinder 33.

[0133] exist Figure 15 (c) Figure 15 In (d), it is a combination of a columnar body 60e with concave and convex sides and an outer cylinder 33 with concave and convex sides.

[0134] The bubbles become smaller as they move upwards.

[0135] (Implementation Method 5)

[0136] Figure 16 This is a cross-sectional view of the foam generating apparatus 17h according to Embodiment 5. The foam generating apparatus 17h is a foam generating apparatus in which the inner cylinder 35 and middle cylinder 34 of Embodiments 1 and 2 are replaced with plate-shaped bodies 61. Matters not described are the same as in Embodiments 1 and 2.

[0137] In the foam generating apparatus 17h, there is no middle cylinder 34, and the plate-shaped body 61 rotates relative to the outer cylinder 33. There are multiple plate-shaped bodies 61, which make the foam finer between them.

[0138] In this example, the plate-like bodies 61 refer to the first plate-like body 61a through the third plate-like body 61c. Figure 16 As shown, when viewed from the vertical direction, the centers of rotation of each plate can be offset. In order to offset the centers on a rotation axis, gears need to be included between each plate 61 and the rotation axis. In addition, since there is no inner cylinder 35 and middle cylinder 34, the lowermost plate 61 has a lower side 34d.

[0139] Preferably, the direction in which the plate-shaped body 61 is offset toward the outer cylinder 33 is different or opposite, either vertically or vertically.

[0140] The foam flow becomes finer as it propagates upwards. As described above, when viewed from the top surface, if the centers of the plates 61 are offset, more foam can pass between the plates 61.

[0141] Plate-like body 61 in Figure 16 The value can be set in the vertical direction, but it can also be set in the horizontal direction.

[0142] (Implementation Method 6)

[0143] Figure 17 (a)~ Figure 17 (d) represents a cross-sectional view of the foam generating apparatus 17g of Embodiment 6. The foam generating apparatus 17g is a foam generating apparatus in which the middle cylinder 34 of Embodiments 1 and 2 is replaced with a columnar body. Matters not described are the same as in Embodiments 1 and 2.

[0144] In the foam generating apparatus 17g, a columnar body 60f is provided in the middle cylinder 34. The middle cylinder 34 or the columnar body 60f rotates relative to the outer cylinder 33. As a result, the foam becomes fine within a narrow space. The foam generating section 39 and the mixing section 46 are located around the periphery of the foam generating apparatus 17g.

[0145] Figure 17 In (a), in the foam generating apparatus 17g, the columnar body 60f is located in the center of the middle cylinder 34. Furthermore, a foam generating section 30 and a mixing section 46 are provided at the end of the bottom surface.

[0146] Figure 17 In (b), within the foam generating apparatus 17g, the columnar body 60f is located at the center of the central cylinder 34. Furthermore, a foam generating section 30 and a mixing section 46 are located at the top. Stirring occurs in the mixing section 46 from the top of the central cylinder 34.

[0147] Figure 17 In (c), within the foam generating apparatus 17g, the columnar body 60f is located at the center of the middle cylinder 34. Furthermore, a mixing section 46 and a foam generating section 39 are located at the top.

[0148] Figure 17 In (d), within the foam generating apparatus 17g, the columnar body 60f is located at the center of the middle cylinder 34. Furthermore, a foam generating section 30 and a mixing section 46 are located at the top. Additionally, the outer cylinder 33 and the middle cylinder 34 are both upwardly extended. The overall shape is a truncated cone.

[0149] In addition, Figure 17 (b) Figure 17 In (d), the foam generating section 39 may be omitted. Since the mixing section 46 is located at the top, air enters naturally, so the foam generating section 39 may also be omitted.

[0150] (overall)

[0151] The above embodiments can be combined. Furthermore, the foam generating section 39 and the mixing section 46 are not essential, but preferred. Moreover, the foam material used in the foam generating apparatus and foam generating method of the present invention is not limited to soapy water, but can also be applied to egg whites or whipped cream.

[0152] Industrial applicability

[0153] The foam generating device and foam generating method of this application can be applied to general households, beauty salons, beauty parlors, food manufacturing, restaurants, pastry shops, etc.

[0154] Explanation of reference numerals in the attached figures

[0155] 2 lids

[0156] 3. Holding section

[0157] 4. Foam Generation Section

[0158] 5 containers

[0159] 6-axis

[0160] 7 Through holes

[0161] 8. Soapy water

[0162] 11 First Rotating Part

[0163] 11a blade

[0164] 12 Second Rotating Part

[0165] 12a blade

[0166] 13 Drive Unit

[0167] 14. Foam Generation Section

[0168] 14a Opening

[0169] 15 Containers

[0170] 16 rotating axes

[0171] Foam generating devices 17a, 17b, 17c, 17d, 17e, 17f, 17g, and 17h

[0172] 31 Drive Unit

[0173] 32 Export Department

[0174] 33, 33a outer cylinder

[0175] 34mm medium tube

[0176] 34a Outer side

[0177] 34b inner side

[0178] 34c bottom

[0179] 34d lower side

[0180] 35 Inner Tube

[0181] 36. Materials Supply Department

[0182] 37 Water Supply Department

[0183] 38 Opening

[0184] 39. Foam Generation Section

[0185] 40 porous part

[0186] 41. Protrusion

[0187] 41a First protrusion

[0188] 41b Second protrusion

[0189] 42 abutment

[0190] 45a, 45b, 45c, 45d tubes

[0191] 45e Foam Material Supply Port

[0192] 46 Mixing section

[0193] 47 axis

[0194] 49. Foam

[0195] 50 Foam Flow

[0196] 51 Rotating part

[0197] 52 main body

[0198] 54 Control Department

[0199] 55 Air Supply Department

[0200] 56a First Screw

[0201] 56b Second Screw

[0202] 57 Return to Section

[0203] 59. Foam Flow

[0204] 60a, 60b, 60c, 60d, 60e, 60f columnar bodies

[0205] 61, 61a, 61b plate-shaped body

[0206] 63. Mobile Department

[0207] 65. Circulatory system.

Claims

1. A foam generating apparatus comprising: a columnar body; an outer cylinder; and a middle cylinder between the columnar body and the outer cylinder, the middle cylinder relatively rotates with respect to the columnar body and the outer cylinder, foam flows between the outer cylinder and the middle cylinder and between the middle cylinder and the columnar body, a mixing section in which water and a foam material are mixed is provided in a lower portion of the middle cylinder, the mixing section has a recessed shape, a foam generating section is provided in a lower portion of the mixing section, liquid mixed in the mixing section moves to the foam generating section, and foam is generated by supplying air to the foam generating section, the foam generating apparatus is characterized in that the columnar body is solid and the foam does not enter.

2. The foam generating apparatus according to claim 1, characterized in that a gap between the outer cylinder and the middle cylinder is wider than a gap between the columnar body and the outer cylinder.

3. The foam generating apparatus according to claim 1 or 2, characterized in that an outlet section that discharges generated foam to the outside is provided, the outlet section is provided between the columnar body and the middle cylinder. comprising:

4. A method for generating a foam using the foam generating apparatus according to any one of claims 1 to 3, characterized by, a first step of mixing water and a foam material; a second step of generating foam by supplying air to the mixture mixed in the first step; and a third step of making the foam generated in the second step advance between a plurality of cylinders and become fine. ​

Images