A powder production device

Abstract

The present invention relates to a powder production device, which includes a turntable driven by a power mechanism and having a rotation axis extending in the front-rear direction. At least two fixed arms are fixedly arranged on the turntable at circumferential intervals. Each fixed arm is rotatably equipped with a mixing tank through a rotating shaft, and the rotation axis of the mixing tank extends in the front-rear direction. The mixing tank has a feed inlet and a discharge outlet. A rotating shaft gear is coaxially fixed on each rotating shaft. When the mixing tank rotates around the axis of the turntable, there are adjacent discharge stations and feed stations. The height of the mixing tank at the discharge station is higher than that of the mixing tank at the feed station. The powder production device further includes an arc-shaped rack arranged coaxially with the turntable. The arc-shaped rack has teeth for engaging and driving with the rotating shaft gear. Along the rotation direction of the turntable, the arc-shaped rack is distributed between the feed station and the discharge station. The present invention solves the technical problem in the prior art that two sets of equipment are required, resulting in the need to transfer the tank body between the two sets of equipment.

Description

Technical Field

[0001] The present invention relates to auxiliary equipment in the field of powder production, and particularly to a powder production equipment for powder stirring. Background Art

[0002] In the field of veterinary drugs, vitamin premix feed, trace element premix feed, compound premix feed, etc. often appear in powder form. These mixed feeds are usually composed of at least two powders. Therefore, in the process of product preparation, how to mix these powders evenly becomes a key factor affecting product quality.

[0003] Powders are different from liquid reagents and cannot be stirred with ordinary stirring blades because there will be dead corners that cannot be stirred. Therefore, in the field of powder stirring, the usual method is to load the powder to be stirred into a tank, and then drive the whole tank to rotate through a driving mechanism so that the powders of various components are mixed and stirred evenly. Then, in order to facilitate the discharge of the powder, a lifting device is used to lift the tank to a certain height, and the powder is discharged from the bottom of the tank by gravity or negative pressure and then enters the corresponding powder packaging machine for powder packaging.

[0004] The existing traditional powder stirring equipment has the following problems. To complete the pre-work of powder stirring and packaging, two sets of equipment are required, one is a stirring equipment and the other is a height lifting equipment. These two sets of equipment will not only occupy a large amount of factory space, but also the problem of how to transfer the tank between the two sets of equipment is relatively troublesome. Summary of the Invention

[0005] The purpose of the present invention is to provide a powder production equipment that can complete the stirring of powder during the process of lifting the height of the tank, so as to solve the technical problem in the prior art that two sets of equipment are required and the tank needs to be transferred between the two sets of equipment.

[0006] To solve the above technical problem, the technical solution of a powder production equipment in the present invention is as follows:

[0007] A powder production equipment includes a turntable driven by a power mechanism, the rotation axis of which extends in the front-rear direction. At least two fixed arms are fixed on the turntable at circumferentially spaced intervals. Each fixed arm is rotationally assembled with a stirring tank through a rotating shaft, and the rotation axis of the stirring tank extends in the front-rear direction. The stirring tank has a feed inlet and a discharge outlet. A rotating shaft gear is coaxially fixed on each rotating shaft. When the stirring tank rotates around the axis of the turntable, there are an adjacent discharge station and a feed station. The height of the stirring tank at the discharge station is higher than that of the stirring tank at the feed station. The powder production equipment further includes an arc-shaped rack coaxially arranged with the turntable. The arc-shaped rack has teeth for meshing and driving with the rotating shaft gear. Along the rotation direction of the turntable, the arc-shaped rack is distributed between the feed station and the discharge station.

[0008] Further, the arc-shaped rack includes at least three arc-shaped rack segments arranged in sequence in the circumferential direction. Define two adjacent arc-shaped rack segments in the circumferential direction as the first arc-shaped rack segment and the second arc-shaped rack segment respectively. The radii of the first arc-shaped rack segment and the second arc-shaped rack segment are different, and the first arc-shaped rack segment and the second arc-shaped rack segment are respectively used for meshing and driving with the radially opposite sides of the corresponding rotating shaft gears.

[0009] Further, the first arc-shaped rack segment and the second arc-shaped rack segment are arranged at intervals in the circumferential direction.

[0010] Further, the mixing tank includes a mixing tank body with an axis extending in the front-rear direction. A downwardly convex counterweight discharge nozzle is provided at the bottom of the mixing tank body, and the center of gravity of the mixing tank is below the axis of the mixing tank body.

[0011] Further, when the mixing tank is in the highest position, the mixing tank starts to be in the discharging station. Along the circumferential rotation direction, the lowermost arc-shaped rack segment is arranged at intervals from the mixing tank in the discharging station. A circumferential discharging port corresponding to each mixing tank is provided on the circumference, and a telescopic discharge pipe is provided on the counterweight discharge nozzle for extending downward into the corresponding circumferential discharging port when the mixing tank is in the highest position.

[0012] Further, the powder production equipment further includes a transmission main shaft located inside the circumference and coaxial with the circumference. The power mechanism is in transmission connection with the transmission main shaft, and the transmission main shaft is connected to the circumference through connecting arms radially distributed with the axis of the transmission main shaft as the center.

[0013] Further, a radial feeding channel with an outer end connected to the corresponding circumferential discharging port is provided in each connecting arm. A channel switching valve is provided on each radial feeding channel. An axial feeding channel connected to the inner ends of the radial feeding channels is provided in the transmission main shaft, and a negative pressure fan is connected to the axial feeding channel.

[0014] The beneficial effects of the present invention are as follows: In the present invention, at the feeding station, the powder to be mixed is added into the corresponding mixing tank through the feeding port. Subsequently, the turntable drives the mixing tank to rotate. During the rotation of the mixing tank along with the turntable, the rotating shaft gear engages with the arc-shaped rack for transmission. Since the arc-shaped rack is fixed, the mixing tank will rotate around its own axis, thereby realizing the uniform mixing of the powder in the mixing tank. Overall, the mixing tank can perform the actions of rotating around its own axis and revolving around the axis of the gear ring. The self-rotation of the mixing tank can achieve the uniform mixing of the powder in the mixing tank, and the revolution of the mixing tank can lift the mixing tank from a low position to a high position. When the mixing tank is at the discharging station with a higher position, it is convenient to discharge through the discharging port. In the present invention, the mixing of the powder and the lifting of the height of the mixing tank can be completed by one device, which simplifies the equipment and does not require two sets of equipment. This not only reduces the number of equipment but also avoids the problem of the mixing tank needing to be transferred between two devices, contributing to the improvement of production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the drawings, several embodiments of the present disclosure are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0016] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0017] Figure 2 is Figure 1 a schematic structural diagram of the mixing tank in

[0018] Figure 3 is Figure 2 a side view of

[0019] Figure 4 is Figure 1 a schematic diagram of the state corresponding to the mixing tank at the discharging station in

[0020] Figure 5 is Figure 1 a schematic diagram of the cooperation of the connecting arm, turntable, and driving main shaft in

[0021] Explanation of reference numerals: 1, turntable; 2, connecting arm; 3, driving main shaft; 4, fixed arm; 5, mixing tank; 6, rotating shaft; 7, rotating shaft gear; 8, counterweight discharging nozzle; 9, arc-shaped rack section; 10, first arc-shaped rack section; 11, second arc-shaped rack section; 12, powder; 13, feeding port; 14, telescopic discharging pipe; 15, driving gear; 16, feeding port cover plate; 17, turntable discharging port; 18, radial feeding channel; 19, axial feeding channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] For the convenience of understanding the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0023] It should be noted that unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention.

[0024] An embodiment of a powder production device in the present invention is as Figures 1 to 5 shown: It includes a turntable 1 driven by a power mechanism with a rotation axis extending in the front-rear direction. The power mechanism in this embodiment includes a reduction motor (not shown in the figure). In this embodiment, the powder production device further includes a transmission main shaft 3 disposed coaxially with the turntable inside the turntable. The power output end of the reduction motor is in transmission connection with the transmission main shaft to drive the transmission main shaft to rotate clockwise in the Figure 1 shown direction. The transmission main shaft is connected to the turntable through connecting arms 2 radially distributed with the transmission main shaft as the center.

[0025] Four fixed arms 4 are fixed on the turntable 1 and arranged at intervals in the circumferential direction. The number of connecting arms 2 corresponds to that of the fixed arms 4 one by one, and the lengths of the respective fixed arms are respectively consistent with the extending directions of the corresponding connecting arms.

[0026] On each fixed arm 4, a mixing tank 5 with a rotation axis extending in the front-rear direction is rotatably assembled through a rotating shaft 6. The mixing tank includes a mixing tank body with an axis extending in the front-rear direction. An inlet 13 and an outlet are provided on the mixing tank body. An inlet cover plate 16 is provided at the inlet, and a downwardly convex counterweight discharge nozzle 8 is provided at the outlet. The mixing tank body is of a cylindrical structure. The setting of the counterweight discharge nozzle facilitates discharging on the one hand, and also makes the center of gravity of the mixing tank below the axis of the mixing tank body. In this way, the overall mixing tank body forms a tumbler structure. When there is no external force, the mixing tank will have a tendency to rotate, making the counterweight discharge nozzle at the bottom of the mixing tank body.

[0027] On each rotating shaft 6, a rotating shaft gear 7 is coaxially fixed. When the mixing tank rotates around the turntable axis, there are adjacent discharging stations and feeding stations. The height of the mixing tank at the discharging station is higher than that of the mixing tank at the feeding station. Figure 1In the view, the mixing tank at the highest position is at the discharging station. In the clockwise direction, the mixing tank downstream of the mixing tank at the discharging station, i.e., the mixing tank on the right side in position, is at the feeding station. The powder production equipment further includes an arc rack arranged coaxially with the rotation circle. The arc rack is fixedly arranged on the corresponding frame, that is to say, the arc rack cannot rotate. In the rotation direction of the rotation circle, the arc rack is distributed between the feeding station and the discharging station.

[0028] In this embodiment, the arc rack includes multiple arc rack segments 9 arranged sequentially in the circumferential direction. The two adjacent arc rack segments in the circumferential direction are defined as the first arc rack segment 10 and the second arc rack segment 11 respectively. The radii of the first arc rack segment and the second arc rack segment are different. That is to say, some arc rack segments are located inside some other arc rack segments. The first arc rack segment and the second arc rack segment are respectively used for meshing and driving with the radially opposite sides of the corresponding rotating shaft gears.

[0029] And the first arc rack segment and the second arc rack segment are arranged at intervals in the circumferential direction.

[0030] That is to say, when the rotation circle drives the mixing tank to rotate clockwise, the rotating shaft gears 7 connected to the mixing tank sequentially engage and drive with the first arc rack segment 10 and the second arc rack segment 11. In this way, when the rotating shaft gear 7 meshes with the first arc rack segment, the mixing tank rotates in one direction. When the rotating shaft gear meshes with the second arc rack segment, the mixing tank rotates in the other direction. The mixing tank rotates forward and backward alternately, which can realize uniform mixing of the powder in the mixing tank. The reason why the first arc rack segment and the second arc rack segment are arranged at intervals is that after the transmission between the rotating shaft gear and the first arc rack segment ends, the mixing tank with the tumbler structure will automatically reset and use gravity to mix the powder, which can save energy. Additionally, and more importantly, when the rotating shaft gear drives with the second arc rack segment, the mixing tank will rotate in the opposite direction. If there is no interval between the first arc rack segment and the second arc rack segment, the mixing tank rotates in one direction and suddenly rotates in the other direction without the rotation speed dropping to zero, which will cause a large impact on the second arc rack segment. In this embodiment, the first arc rack segment and the second arc rack segment are arranged at intervals in the circumferential direction. Therefore, after the rotating shaft gear disengages from the first arc rack segment, the mixing tank will return to the self-balanced state where the counterweight discharging nozzle is at the lower side, and the rotation speed of the mixing tank becomes zero. Then the rotating shaft gear meshes with the second arc rack, reducing the impact on the second arc rack and ensuring the service life of each arc rack segment.

[0031] When the mixing tank is in the highest position, the mixing tank starts to be in the discharging station. Along the direction of the circular rotation, the lowermost arc-shaped rack section is spaced from the mixing tank at the discharging station. In this way, after the rotating shaft gear disengages from the lowermost arc-shaped rack section, the mixing tank has enough time to return to the balanced state where the counterweight discharging nozzle is at the lower side. There are circular discharging openings 17 provided on the circular rotation corresponding to each mixing tank, and a telescopic discharging pipe 14 is provided on the counterweight discharging nozzle 8, which extends downward into the corresponding circular discharging opening when the mixing tank is in the highest position.

[0032] After the rotating shaft gear disengages from the lowermost arc-shaped rack section, under the action of the counterweight discharging nozzle 8, the mixing tank of the tumbler structure returns to the balanced state where the counterweight discharging nozzle is at the lowermost side. At this time, the counterweight discharging nozzle 8 corresponds to the corresponding circular discharging opening 17, and the telescopic discharging pipe can extend into the corresponding circular discharging opening. Item 15 in the figure represents the driving gear for driving the telescopic movement of the telescopic discharging pipe, and a rack engaging with the driving gear is provided on the telescopic discharging pipe.

[0033] A radial feeding channel 18 with an outer end connected to the corresponding circular discharging opening 17 is provided in each connecting arm. A channel switching valve is provided on each radial feeding channel 18. An axial feeding channel 19 connected to the inner ends of the radial feeding channels is provided in the transmission main shaft, and a negative pressure fan is connected to the axial feeding channel.

[0034] That is to say, for the mixing tank in the discharging station, the telescopic discharging pipe of the mixing tank extends into the corresponding circular discharging opening. The channel switching valve on the corresponding radial feeding channel is opened. The powder in the mixing tank at the discharging station is discharged through the telescopic discharging pipe, the circular discharging opening, the radial feeding channel and the axial feeding channel. As the circular rotation continues, the mixing tank rotates from the discharging station to the end of the discharging station, and the circular rotation angle is 10° - 15°. When the discharging is completed, the mixing tank rotates to the feeding station, and the operator opens the feeding port cover plate and manually adds powder into the mixing tank. From the start of the feeding station to the end of the feeding station, the circular rotation angle is 5° - 10°. During the process of the mixing tank at the discharging station and the feeding station, there is no arc-shaped rack section engaging with the rotating shaft gear. During the discharging station process, the insertion of the telescopic discharging pipe and the circular discharging opening ensures that the mixing tank does not rotate randomly. During the feeding station process, the tumbler structure principle is utilized to keep the mixing tank from rotating randomly.

[0035] In this embodiment, both the discharging station and the feeding station are completed within a certain angle range of the circular rotation. In other embodiments of the present invention, the power mechanism for driving the circular rotation can also be a stepping power mechanism. The stepping power mechanism drives the circular rotation by 90° and then stops for a period of time, for example, stops for 10 seconds - 20 seconds. During this stagnant time period, the discharging of the mixing tank at the discharging station and the feeding of the mixing tank at the feeding station are completed.

[0036] In the above description of this specification, unless otherwise clearly specified and defined, terms such as "fixed", "installed", "connected" or "coupled" should be understood in a broad sense. For example, for the term "connected", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the communication inside two components or the interaction relationship between two components. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0037] According to the above description of this specification, those skilled in the art can also understand the terms used as follows. For example, terms indicating orientation or position relationship such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "center", "longitudinal", "transverse", "clockwise" or "counterclockwise" are based on the orientation or position relationship shown in the drawings of this specification. It is only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or component involved must have the specific orientation, be constructed and operate in the specific orientation. Therefore, the above terms of orientation or position relationship cannot be understood or interpreted as a limitation to the solution of the present invention.

[0038] In addition, the terms "first" or "second" etc. used in this specification to refer to numbers or ordinals are only for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "a plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A powder production device, characterized in that; The invention comprises a rotating circle with a rotating axis extending in the front-to-back direction driven by a power mechanism, at least two fixed arms arranged at intervals in the circumferential direction are fixed on the rotating circle, each fixed arm is equipped with a stirring tank with a rotating axis extending in the front-to-back direction through a rotating shaft, the stirring tank has a feeding port and a discharging port, and a rotating shaft gear is coaxially fixed on each rotating shaft. When the stirring tank rotates around the rotating circle axis, the stirring tank has a discharging station and a feeding station arranged adjacently, and the height of the stirring tank at the discharging station is higher than the height of the stirring tank at the feeding station. The powder production equipment also comprises a stirring tank coaxially with the rotating circle An arc-shaped rack is provided, and the arc-shaped rack has teeth for meshing and transmitting with the rotating shaft gear. Along the rotation direction of the circle, the arc-shaped rack is distributed between the feeding station and the discharging station. The arc-shaped rack includes at least three arc-shaped rack segments arranged in sequence along the circumferential direction. Two arc-shaped rack segments adjacent to each other in the circumferential direction are defined as the first arc-shaped rack segment and the second arc-shaped rack segment, respectively. The radii of the first arc-shaped rack segment and the second arc-shaped rack segment are different. The first arc-shaped rack segment and the second arc-shaped rack segment are respectively used for meshing and transmitting with the radially opposite sides of the corresponding rotating shaft gear.

2. The powder production equipment according to claim 1, characterized in that: The first arc-shaped rack segment and the second arc-shaped rack segment are arranged at intervals in the circumferential direction.

3. The powder production equipment according to claim 1 or 2, characterized in that: The stirring tank comprises a stirring tank body with an axis extending in the front-rear direction. A downward convex counterweight discharge nozzle is arranged at the bottom of the stirring tank body, and the center of gravity of the stirring tank is below the axis of the stirring tank body.

4. The powder production equipment according to claim 3, characterized in that: When the stirring tank is at the highest position, the stirring tank begins to be at the discharging station. Along the rotation direction of the circle, the most downstream arc-shaped rack section is spaced from the stirring tank at the discharging station. The circle is provided with a circle discharge port corresponding to each stirring tank. The counterweight discharge nozzle is provided with a telescopic discharge pipe which is used to extend downward to the corresponding circle discharge port when the stirring tank is at the highest position.

5. The powder production equipment according to claim 4, characterized in that: The powder production equipment also includes a transmission main shaft located inside the rotating circle and arranged coaxially with the rotating circle. The power mechanism is connected to the transmission main shaft in a transmission manner. The transmission main shaft is connected to the rotating circle through connecting arms that are radially distributed with the axis of the transmission main shaft as the center.

6. The powder production equipment according to claim 5, characterized in that: Each connecting arm is provided with a radial material feeding channel whose outer end is connected to the corresponding rotating circle discharge port, each radial material feeding channel is provided with a channel switching valve, and an axial material feeding channel connected to the inner end of each radial material feeding channel is provided in the transmission main shaft, and a negative pressure fan is connected to the axial material feeding channel.

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