mixer

Abstract

To provide a mixer that mixes materials uniformly, reduces maintenance labor, and has a high recovery rate of the mixture. [Solution] In the mixer (20), the bottom surface of the storage section (30) has a curved surface that slopes toward the outlet (34). Therefore, the mixture mixed in the storage section (30) moves along the curved surface toward the outlet (34) due to its own weight, allowing the mixture to be removed more easily and with a higher recovery rate than when the storage section (30) is bottom-mounted. Additionally, the front side of the storage section (30) is provided with an openable door, and a rotating shaft (42) with a pair of agitating blades (40) on both ends is horizontally mounted. Therefore, the agitating blades (40) are not located in front of the door, reducing the effort required to clean or perform maintenance on the interior of the storage section (30) through the door. In particular, the bottom surface of the storage section (30), which is prone to contamination by the mixture, can be easily accessed, reducing maintenance effort.

Description

[Technical Field]

[0001] The present invention relates to a mixer. [Background technology]

[0002] Conventionally, there has been known a powder mixer that can improve the release of powder from the cut portions and increase mixing efficiency even in a screw that has cut portions. For example, Patent Document 1 describes a mixer that can improve the release of powder from the cut portions and increase mixing efficiency even in a screw that has cut portions, by attaching protruding scooping plates to the back of each of a plurality of blades and along the side of each cut portion, and attaching a predetermined number of scraping plates at predetermined positions between these blades. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-239255 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the mixer described in Patent Document 1 has problems in that it requires a lot of labor for maintenance and has a low recovery rate of the mixture.

[0005] The present invention has been made in consideration of these problems, and its main object is to provide a mixer that can mix uniformly, reduce maintenance efforts, and have a high recovery rate of the mixture. [Means for solving the problem]

[0006] In order to achieve at least one of the above-mentioned objects, the present invention has adopted the following measures.

[0007] The mixer of this invention is a storage section for storing the mixture; An input port provided above the storage section; an outlet provided in a region including the lowest position of the storage section; a door portion provided on a front side of the storage portion and capable of being opened and closed; a rotation shaft that is horizontally provided inside the storage unit and rotated by a driving means; A pair of stirring blades provided on the rotating shaft; Equipped with The bottom surface of the storage section has a curved surface that is inclined toward the outlet. It is something.

[0008] In the mixer of this invention, raw materials are fed into the container through an inlet located above the container, where they are mixed. The resulting mixture is then removed through an outlet located on the bottom. Because the container's bottom is curved and inclined toward the outlet, the mixed mixture moves along the curved surface toward the outlet, allowing for easier and more efficient removal of the mixture than with a flat bottom. Additionally, a retractable door is provided on the front side, allowing easy access to the interior of the container, particularly the lower part of the container, which is prone to contamination by the mixture, thereby reducing maintenance efforts.

[0009] The mixer of the present invention may further comprise a chopper blade having a rotation axis located midway between the pair of agitating blades and at a position approximately perpendicular to the rotation axis of the agitating blades. By doing so, when mixing the contents, the chopper blade can agitate in a direction perpendicular to the agitating direction of the agitating blades, thereby allowing the contents to be mixed more uniformly.

[0010] In the mixer of the present invention, the agitating blades may be provided at one end and the other end of the rotating shaft at positions that form approximately a right angle with the rotating shaft, and the tip of the agitating blade may be inclined toward the center of the storage section. By doing so, when the agitating blades rotate in conjunction with the rotation of the rotating shaft, the contents are agitated inward along the inclination of the tip of the agitating blade, which allows the contents located near the side of the storage section to be guided inward, making it easier to remove the mixture from the outlet. In other words, the possibility of the mixture remaining near the side of the useful section is reduced. Note that "toward the center of the storage section" here means the direction toward the midpoint between the right and left sides of the storage section.

[0011] In the mixer of the present invention, the mixing blade may comprise an arm connected to the rotating shaft and a tip connected to the arm, and the arm may be provided with a plate-shaped auxiliary plate whose surface is inclined toward the center of the container. This allows the auxiliary plate to rotate as the mixing blade rotates, mixing the contents at both the tip and the auxiliary plate, resulting in more uniform mixing than without the auxiliary plate. Additionally, because the surface of the auxiliary plate is inclined toward the center of the container, the contents are stirred inward along the surface of the auxiliary plate as the auxiliary plate rotates, thereby directing contents near the sides of the container inward, making it easier to remove the mixture from the outlet. In other words, the likelihood of the mixture remaining near the sides of the container is reduced. Note that "toward the center of the container" here refers to the direction midway between the right and left sides of the container. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view showing the outline of the configuration of the mixer 20. As shown in FIG. [Figure 2] FIG. 2 is a perspective view showing an outline of the internal structure of the mixer 20. As shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] Next, the mixer 20 will be described in detail as an example of an embodiment of the present invention. The embodiments and drawings described below are intended to exemplify some of the embodiments of the present invention and are not intended to limit the scope of the present invention. Appropriate modifications can be made without departing from the spirit and scope of the present invention. Corresponding components in each drawing are designated by the same or similar reference numerals. Furthermore, an example of how to use the mixer 20 will be shown to clarify an example of how to use the mixer of the present invention.

[0014] A mixer 20, an example of an embodiment of the present invention, mixes powders and the like contained in a storage unit 30. As shown in FIG. 1, the mixer includes a storage unit 30 that stores and mixes powders and the like, and a drive unit 22 that rotates a rotating shaft 42 (see FIG. 2) that is connected to an agitator blade 40 located inside the storage unit 30 via a belt unit (not shown). In this mixer 20, powders and the like are introduced through an inlet 32 ​​located above the storage unit 30. After mixing in the storage unit 30, the mixed material is removed from an outlet 34 located on the bottom of the storage unit 30, which has a curved surface that slopes toward the outlet 34. Because the bottom of the storage unit 30 is curved and slopes toward the outlet 34, the mixture moves along the curved surface toward the outlet 34 due to its own weight. This reduces the likelihood of the mixture remaining on the bottom of the storage unit 30 compared to a flat bottom. In other words, the mixture is easily recovered from the outlet 34. Furthermore, an openable and closable door 36 is provided on the front side of the storage unit 30. By doing so, by opening the door 36, the interior of the storage unit 30 can be easily accessed through the door 36, thereby reducing the effort required for maintenance, cleaning, etc. inside the storage unit 30.

[0015] As shown in FIG. 2, the storage compartment 30 is formed as a hollow, generally spherical container. A horizontally disposed rotating shaft 42 rotates via a driving force from the drive unit 22 via a belt (not shown). A pair of agitating blades 40a and a pair of agitating blades 40b (hereinafter also referred to as "agitating blades 40") are provided at one end and the other end of the rotating shaft 42, respectively. By providing the agitating blades 40 at one end and both ends of the horizontally disposed rotating shaft 42, a space is created in the center. This creates a space inside the door 36 when the door 36 is opened, facilitating cleaning and maintenance of the interior of the storage compartment 30 or maintenance of the agitating blades 40. A chopper blade 38, whose rotation axis is oriented approximately perpendicular to the rotation shaft 42, is provided at the front of the door 36. The chopper blade 38 is a metallic rotating blade that rotates in four directions (directions perpendicular to each other) around a rotation shaft connected to a drive means (not shown), and rotates as the rotation shaft rotates due to the drive means (not shown). At this time, the rotation shaft of the chopper blade 38 and the rotation shaft 42 are positioned approximately perpendicular to each other, so that the chopper blade 38 rotates in a direction approximately perpendicular to the direction of movement of the contents stirred by the stirring blade 40 that rotates in accordance with the rotation of the rotation shaft 42. Therefore, if some of the contents have solidified or formed lumps, the lumps or clumps of the contents can be broken up, resulting in more uniform mixing than when the chopper blade 38 is not provided.

[0016] Each pair of agitator blades 40 comprises an arm 44 connected at one end to the rotating shaft 42 at a substantially right angle and a tip 46 connected to the other end of the arm 44. The agitator blade 40a at one end and the agitator blade 40b at the other end are positioned 90° apart, so that the arms 44 do not overlap when viewed from the side of the mixer 20. This arrangement ensures that one of the agitator blades 40 stirs the contents upward from the lower side of the storage section 30 every time the rotating shaft 42 rotates 90°, thereby achieving uniform stirring. Furthermore, because the tip 46 of the agitator blade 40 is inclined toward the center of the storage section 30, as the agitator blade 40 rotates, the contents located below the storage section 30 are stirred upward, while the contents are stirred toward the center of the storage section 30. By doing so, the contents can be stirred uniformly, and in addition, as the mixture is stirred, it is collected near the center where the outlet 34 is provided, making it easy to remove the mixture.

[0017] Further, arm 44 is provided with plate-shaped auxiliary plate 45, the surface of which is inclined toward the center of storage unit 30 when rotating shaft 42 rotates. This causes auxiliary plate 45 to rotate with the rotation of rotating shaft 42, allowing the contents to be mixed, resulting in more uniform mixing compared to when auxiliary plate 45 is not provided. In addition, when auxiliary plate 45 rotates with the rotation of rotating shaft 42, the surface of auxiliary plate 45 is inclined toward the center of storage unit 30, so that the contents located below storage unit 30 are mixed upward, and the contents located near the side of storage unit 30 are mixed toward the center of storage unit 30. This not only allows the contents to be mixed uniformly, but also makes it easier to remove the mixture because the mixture collects near the center where outlet 34 is provided as it is mixed.

[0018] According to the embodiment of the mixer 20 described above, the bottom surface of the storage unit 30 has a curved surface that slopes toward the outlet 34. This allows the mixed mixture in the storage unit 30 to move along the curved surface toward the outlet 34 under its own weight, making it easier to remove the mixture with a higher recovery rate than when the storage unit 30 is a bottom-mounted storage unit. Additionally, the front side of the storage unit 30 is provided with an openable door 36, and a rotating shaft 42 having a pair of agitating blades 40 on both ends is horizontally mounted. This means that the agitating blades 40 are not located in front of the door 36, reducing the effort required to clean and maintain the interior of the storage unit 30 through the window 36. In particular, the bottom surface of the storage unit 30, which is prone to contamination by the mixture, can be easily accessed, reducing maintenance effort.

[0019] In addition, a chopper blade 38 having a rotation axis is provided at a position intermediate between the agitator blade 40a and the agitator blade 40b, at a position perpendicular to the rotation axis 42. When the contents are mixed, the chopper blade 38 rotates in a direction approximately perpendicular to the rotation direction of the agitator blade 40, so that when the contents are mixed, lumps and lumps of the contents can be easily crushed and the contents can be mixed uniformly.

[0020] Furthermore, the stirring blades 40 are provided on both ends of the rotating shaft 42, and the tip 46 of the rotating blade 40 is inclined toward the center of the storage section 30. Therefore, when the contents are stirred as the stirring blade 40 rotates, the contents are guided from a position close to the side of the storage section 30 toward the central position. Since the chopper blade 38 is provided at the central position, it increases the possibility that lumps or clumps of the contents will be crushed by the chopper blade 38, reducing the possibility that the contents will remain near the side of the storage section 30, and the contents can naturally be collected near the outlet 34.

[0021] Furthermore, the agitator blade 40 is provided with an auxiliary plate 45 whose surface is inclined toward the center of the storage section 30, so that as the agitator blade 40 rotates, the contents can be agitated by both the tip 46 and the auxiliary plate 45, allowing for faster and more uniform agitation than when the auxiliary plate 45 is not provided.

[0022] It goes without saying that the present invention is not limited to the above-described embodiment, and can be embodied in various forms as long as they fall within the technical scope of the present invention. [Industrial Applicability]

[0023] As shown in the above-described embodiment, the present invention can be used as a mixer, particularly as a powder mixer. [Explanation of symbols]

[0024] 20...mixer, 22...drive unit, 30...storage unit, 32...feeding port, 34...discharge port, 36...door unit, 38...chopper blade, 40...mixing blade, 40a...mixing blade, 40b...mixing blade, 42...rotating shaft, 44...arm, 44b...arm, 45...auxiliary plate, 45b...auxiliary plate, 46...tip, 46b...tip.

Claims

1. a storage section for storing the mixture; An input port provided above the storage section; an outlet provided in a region including the lowest position of the storage section; a door portion provided on a front side of the storage portion and capable of being opened and closed; a rotation shaft that is horizontally provided inside the storage section and rotated by a driving means; A pair of stirring blades provided on the rotating shaft; Equipped with The bottom surface of the storage section has a curved surface that slopes toward the outlet. mixer.

2. 2. The mixer of claim 1, a chopper blade having a rotation axis at a position intermediate the pair of stirring blades and substantially perpendicular to the rotation axis; characterized in that it comprises mixer.

3. The stirring blades are provided at one end and the other end of the rotation shaft at positions that form an approximately right angle with the rotation shaft, The tip side of the stirring blade is inclined toward the center of the storage section.

3. A mixer according to claim 1 or 2.

4. The stirring blade comprises an arm portion connected to the rotating shaft and a tip portion connected to the arm portion, The arm portion includes an auxiliary plate having a surface inclined toward the center of the storage portion; characterized in that it comprises A mixer according to any one of claims 1 to 3.

Images