Mixing device capable of changing number of paddles along with speed change

Abstract

The utility model relates to a material mixing device, in particular to a material mixing device capable of changing the number of paddles along with speed change, which comprises a material mixing tank and a driving component arranged on the material mixing tank, four flange plates are fixedly arranged on a transmission shaft of the driving component at equal intervals from bottom to top, and four stirring paddles are rotatably arranged on the flange plates in an annular array mode. Shielding covers are arranged on the first three flange plates arranged from top to bottom in a sliding mode, and the adjacent stirring paddles and shielding covers are connected through linkage rods in a matched mode; through the matched design of the flange plates, the stirring paddles, the linkage rod and the shielding cover, when the driving assembly drives the transmission shaft to rotate, the stirring paddles on the bottommost flange plate can be unfolded under the acting force of centrifugal force to increase the stirring area, the number of the stirring paddles can be changed at different rotating speeds, and when the stirring paddles are started at the first time, the stirring area can be increased. Only the stirring paddle on the bottommost flange plate is in contact with the material, so that the friction coefficient is reduced, and the starting energy consumption of the driving assembly is reduced.

Description

Technical Field

[0001] The utility model relates to a material mixing device, in particular to a material mixing device which changes the number of paddles as the speed changes. Background Art

[0002] A mixing device (also called a mixer, mixing equipment or mixing system) is a mechanical device used to uniformly mix materials of different types or components, and is commonly used in industries such as chemicals, pharmaceuticals, food, building materials and plastics.

[0003] The current mixing device generally adds the material into the mixing container, and then starts the driving motor to make the stirring shaft perform the mixing operation. However, when the stirring shaft rotates in the material, the friction coefficient between the stirring blades and the material is large, which increases the energy consumption when the driving motor is started, and the time to reach a specific speed is longer, which affects the mixing effect. Utility Model Content

[0004] The utility model aims to provide a mixing device which can change the number of paddles as the speed changes, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A mixing device that changes the number of paddles as the speed changes, comprising: a mixing tank and a driving assembly arranged on the mixing tank, wherein four flanges are fixedly arranged on the transmission shaft of the driving assembly at equal intervals from bottom to top, four stirring paddles are rotatably arranged in a circular array on the flanges, and shielding covers are slidably arranged on the first three flanges arranged from top to bottom, and adjacent stirring paddles and shielding covers are connected by linkage rods.

[0007] The mixing device with the number of paddles changed with the speed as described above: the outer wall of the flange is provided with four rotating grooves in an annular array, and the outer walls of the first three flanges arranged from top to bottom are provided with four plug-in grooves in an annular array at the positions offset from the rotating grooves.

[0008] The mixing device that changes the number of paddles as the speed changes as described above: a first rotating seat is fixedly provided on the side of the stirring paddle away from the transmission shaft.

[0009] The mixing device that changes the number of paddles as the speed changes as described above: both ends of the linkage rod are fixedly provided with a rotating head.

[0010] The mixing device that changes the number of paddles according to the speed as described above: The shielding cover is cylindrical with a hollow interior and one end of the top converging towards the inner ring. Four second rotating seats are fixedly arranged in an annular array on the outer wall of the shielding cover. Four sliding grooves are arranged in an annular array at the positions where the outer walls of the first two shielding covers from bottom to top are misaligned with the second rotating seats. Four convex ribs are integrally formed at the positions where the inner wall of the shielding cover is aligned with the second rotating seats.

[0011] The mixing device that changes the number of paddles according to the speed as described above: One end of the stirring paddle is rotatably connected in the rotating groove through a rotating shaft.

[0012] The mixing device that changes the number of paddles according to the speed as described above: The rotating head at one end of the linkage rod is rotatably connected to the first rotating seat, and the rotating head at the other end is rotatably connected to the second rotating seat. The maximum rotation angle of the rotating head on the second rotating seat is thirty degrees.

[0013] The mixing device that changes the number of paddles according to the speed as described above: The sliding groove is slidably arranged with the first rotating seat, and the convex rib is slidably inserted into the insertion groove.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] Through the combined design of the flange, stirring paddle, linkage rod and shielding cover, when the drive assembly drives the transmission shaft to rotate, the stirring paddle on the bottommost flange can expand under the action of centrifugal force to increase the stirring area. Since the adjacent stirring paddle and shielding cover are connected by a linkage rod, when the stirring paddle on the bottommost flange expands to the maximum angle, the previous shielding cover can be lifted under the drive of the linkage rod, exposing the stirring part inside the current shielding cover. And under the action of centrifugal force, the stirring paddle at the current position expands. Thus, the previous shielding cover is driven to rise by the linkage rod. In this order, at different rotation speeds, the number of stirring paddles can change. When starting initially, only the stirring paddle on the bottommost flange contacts the material, reducing the friction coefficient and lowering the starting energy consumption of the drive assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the mixing device that changes the number of paddles according to the speed.

[0017] Figure 2 It is a schematic structural diagram of the drive assembly in the mixing device that changes the number of paddles according to the speed.

[0018] Figure 3 It is a schematic structural diagram of the flange in the mixing device that changes the number of paddles according to the speed.

[0019] Figure 4Schematic structural diagram of a stirring paddle in a mixing device that changes the number of paddles according to the speed

[0020] Figure 5 Schematic structural diagram of a linkage rod in a mixing device that changes the number of paddles according to the speed

[0021] Figure 6 Schematic structural diagram of a shielding cover in a mixing device that changes the number of paddles according to the speed

[0022] In the figure: 1. Mixing tank; 2. Driving assembly; 3. Flange; 301. Rotating groove; 302. Insertion slot; 4. Stirring paddle; 401. First rotating seat; 5. Linkage rod; 501. Rotating head; 6. Shielding cover; 601. Second rotating seat; 602. Sliding groove; 603. Convex rib. Detailed implementation manners

[0023] The following will describe in detail various exemplary embodiments, features, and aspects of the present application with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0024] The special word "exemplary" here means "serving as an example, embodiment, or illustration". Any embodiment described as "exemplary" here does not have to be construed as superior to or better than other embodiments.

[0025] In addition, for a better description of the present application, numerous specific details are given in the following detailed embodiments. Those skilled in the art should understand that the present application can also be implemented without some specific details. In some instances, methods, means, and elements well-known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0026] Please refer to Figures 1 to 6 , in the embodiment of the present utility model, a mixing device that changes the number of paddles according to the speed includes: a mixing tank 1 and a driving assembly 2 provided on the mixing tank 1. Four flanges 3 are fixedly arranged at equal intervals from bottom to top on the transmission shaft of the driving assembly 2. Four stirring paddles 4 are rotatably arranged in a circular array on the flange 3. Shielding covers 6 are slidably arranged on the first three flanges 3 arranged from top to bottom. The adjacent stirring paddles 4 and shielding covers 6 are cooperatively connected by a linkage rod 5.

[0027] In this embodiment, when the material is added to the mixing tank 1 for mixing, the driving assembly 2 is started to rotate the transmission shaft. The four flanges 3 on the transmission shaft, except for the stirring paddle 4 on the bottom flange 3 which contacts the material, the stirring paddles 4 on the other three flanges 3 are inside the shielding cover 6 and are shielded by the shielding cover 6. The shielding of the shielding cover 6 on the cooperating stirring shaft 4 can reduce the friction coefficient between the multiple groups of stirring shafts 4 and the material when the transmission shaft starts to rotate. As the speed of the transmission shaft increases, the stirring paddle 4 rotatably connected on the bottom flange 3 will expand under the centrifugal force, thereby increasing the stirring area. When the stirring paddle 4 is expanded, since the adjacent stirring paddles 4 and the shielding cover 6 are cooperatively connected by the linkage rod 5, the maximum rotation angle of the rotating head 501 on the second rotating seat 601 is limited to thirty degrees. When the stirring paddle 4 on the bottom flange 3 is expanded by centrifugal force, the shielding cover 6 on the upper flange 3 will rise, and the convex ridge 603 integrally formed on the inner wall of the shielding cover 6 is slidably connected to the corresponding plug-in groove 302, so that the shielding cover 6 will not rotate on the flange 3. When the stirring paddle 4 on the bottom flange 3 is expanded horizontally, the upper shielding cover 6 rises, so that the stirring paddle 4 with the internal shield is completely exposed. At this time, the exposed stirring paddle 4 will also be rotated and expanded under the influence of centrifugal force. In this order, the stirring paddle 4 on the four flanges 3 can be exposed and expanded as the stirring speed changes, thereby reducing excessive stirring paddles 4 from contacting the material over a large area at startup, resulting in an increase in the friction coefficient between multiple stirring paddles 4 and the material, increasing the startup energy consumption of the drive component 2, and affecting the efficient mixing of the material.

[0028] As a further solution of the utility model, four rotation grooves 301 are formed in an annular array on the outer wall of the flange 3, and four plug-in grooves 302 are formed in an annular array on the outer walls of the first three flanges 3 arranged from top to bottom at locations offset from the rotation grooves 301.

[0029] In this embodiment, the flange 3 is fixedly connected to the transmission shaft. When the driving assembly 2 drives the transmission shaft to rotate, the flange 3 can rotate synchronously, while satisfying the rotation connection use of the stirring paddle 4 to meet the mixing of the materials and ensure the use effect.

[0030] As a further solution of the present invention, a first rotating seat 401 is fixedly provided on the side of the stirring paddle 4 away from the transmission shaft, and one end of the stirring paddle 4 is rotatably connected to the rotating groove 301 through the rotating shaft.

[0031] In this embodiment, the stirring paddle 4 is rotatably connected to the flange 3, and can rotate in the rotating groove 301 under the influence of centrifugal force at different rotation speeds of the flange 3, so that the four stirring paddles 4 in the annular array on the flange 3 are unfolded, increasing the stirring area of the stirring paddle 4 and improving the mixing efficiency.

[0032] As a further solution of the present utility model, rotating heads 501 are fixedly arranged at both ends of the linkage rod 5.

[0033] In this embodiment, the linkage rod 5 acts between the adjacent stirring paddle 4 and the shielding cover 6. When the stirring paddle 4 unfolds under the centrifugal force, the linkage rod 5 can cause the shielding cover 6 to slide and rise on the flange 3, so that the stirring paddle 4 covered inside the shielding cover 6 is exposed, and the exposed stirring paddle 4 can rotate and unfold under the centrifugal force, meeting the adaptive change of the number of paddles at different rotation speeds.

[0034] As a further solution of the present utility model, the shielding cover 6 is arranged in a cylindrical shape with a hollow interior and one end of the top converging towards the inner ring. Four second rotating seats 601 are fixedly arranged in an annular array on the outer wall of the shielding cover 6. Four sliding grooves 602 are arranged in an annular array at the positions where the outer walls of the first two shielding covers 6 from bottom to top are misaligned with the second rotating seats 601. Four convex ribs 603 are integrally formed at the positions where the inner wall of the shielding cover 6 is aligned with the second rotating seats 601.

[0035] In this embodiment, the shielding cover 6 is arranged in a cylindrical shape, which can reduce the friction coefficient with the material. The shielding cover 6 shields the stirring paddle 4. When the transmission shaft starts to rotate, the number of paddles can be reduced. As the speed changes, the shielding cover 6 can rise on the corresponding flange 3 under the drive of the linkage rod 5, so that the shielded stirring paddle 4 is exposed and rotates and unfolds on the flange 3 under the centrifugal force. Thus, when the transmission shaft reaches the maximum rotation speed, multiple groups of stirring paddles 4 can be unfolded simultaneously for stirring, improving the mixing effect of the material.

[0036] As a further solution of the present utility model, the rotating head 501 at one end of the linkage rod 5 is rotatably connected to the first rotating seat 401, and the rotating head 501 at the other end is rotatably connected to the second rotating seat 601. The maximum rotation angle of the rotating head 501 on the second rotating seat 601 is thirty degrees.

[0037] In this embodiment, the linkage rod 5 acts between the adjacent stirring paddle 4 and the shielding cover 6. When the lower stirring paddle 4 is tilted and unfolded under the influence of the centrifugal force, since the linkage rod 5 is set to a fixed length and the rotating heads 501 at both ends are respectively connected to the corresponding first rotating seat 401 and the second rotating seat 601, the rotation angle of the rotating head 501 on the second rotating seat 601 is limited, and the maximum rotation angle is thirty degrees as Figure 6 shown. Therefore, when the stirring paddle 4 rotates and unfolds, it can push and raise the shielding cover 6, so that the stirring paddle 4 inside the upper shielding cover 6 can be exposed, increasing the number of stirring paddles 4 for mixing and improving the stirring effect.

[0038] As a further solution of the present utility model, the sliding groove 602 is slidably arranged with the first rotating seat 401, and the convex rib 603 is slidably inserted into the insertion groove 302.

[0039] In this embodiment, the convex rib 603 is slidably connected in the insertion slot 302. The insertion slot 302 is provided on the flange 3, and the flange 3 is fixedly connected to the transmission shaft. When the transmission shaft rotates, the shielding cover 6 will not rotate on its own on the flange 3, ensuring the overall connection effect. The sliding slot 602 is slidably arranged with the first rotating seat 401 fixedly arranged on the stirring paddle 4 shielded inside the shielding cover 6, ensuring that the adjacent stirring paddle 4 and the shielding cover 6 can be connected and used through the linkage rod 5, meeting the connection effect during driving.

[0040] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0041] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mixing device that changes the number of paddles according to the speed, comprising: A mixing tank (1) and a driving assembly (2) provided on the mixing tank (1), characterized in that four flange plates (3) are fixedly arranged at equal intervals from bottom to top on the transmission shaft of the driving assembly (2), and four stirring paddles (4) are rotatably arranged in a circular array on the flange plates (3). Three flange plates (3) arranged from top to bottom are each slidably provided with a shielding cover (6), and a linkage rod (5) is cooperatively connected between the adjacent stirring paddles (4) and the shielding cover (6).

2. The mixing device with the number of paddles changing according to the speed as claimed in claim 1, wherein Four rotating grooves (301) are formed in a circular array on the outer wall of the flange plate (3). Four insertion grooves (302) are formed in a circular array at positions on the outer walls of the first three flange plates (3) arranged from top to bottom that are offset from the rotating grooves (301).

3. A mixing device that changes the number of paddles according to speed as claimed in claim 1, characterized in that, A first rotating seat (401) is fixedly arranged on the side of the stirring paddle (4) facing away from the transmission shaft.

4. A mixing device that changes the number of paddles according to the speed as claimed in claim 1, wherein Rotating heads (501) are fixedly arranged at both ends of the linkage rod (5).

5. A mixing device that changes the number of paddles according to speed as claimed in claim 1, wherein The shielding cover (6) is in a cylindrical shape with a hollow interior and the top end converging inwardly. Four second rotating seats (601) are fixedly arranged in a circular array on the outer wall of the shielding cover (6). Four sliding grooves (602) are formed in a circular array at positions on the outer walls of the first two shielding covers (6) arranged from bottom to top that are offset from the second rotating seats (601). Four convex ridges (603) are integrally formed at positions on the inner wall of the shielding cover (6) aligned with the second rotating seats (601).

6. A mixing device that changes the number of paddles according to speed as claimed in claim 3, wherein, One end of the stirring paddle (4) is rotatably connected in the rotating groove (301) through a rotating shaft.

7. A mixing device that changes the number of paddles according to the speed as claimed in claim 4, wherein The rotating head (501) at one end of the linkage rod (5) is rotatably connected to the first rotating seat (401), and the rotating head (501) at the other end is rotatably connected to the second rotating seat (601). The maximum rotation angle of the rotating head (501) on the second rotating seat (601) is 30 degrees.

8. A mixing device that changes the number of paddles according to the speed as claimed in claim 5, characterized in that The sliding groove (602) is slidably arranged with the first rotating seat (401), and the convex ridge (603) is slidably inserted into the insertion groove (302).

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