Powder mixer

Abstract

The utility model provides a powder mixer which comprises a mixing barrel, a feed port and a discharge port, a first motor is mounted above the mixing barrel, connecting frames are mounted on two sides of the first motor, one ends of the two connecting frames are fixed with the mixing barrel, the output end of the first motor penetrates through the mixing barrel and extends into the mixing barrel, and the feed port is connected with the discharge port. A stirring shaft is mounted at the output end of the first motor, a plurality of stirring blades are mounted on the outer shaft wall of the stirring shaft, and a cleaning mechanism is arranged on the outer side of the stirring shaft. Through cooperative use of the second motor, the rotating shaft, the driving gear, the driven gear and the two auger blades, mixed powder inside can be lifted to the upper portion from the bottom of the material conveying barrel, the powder can be thrown to the lower portion from the upper portion under the action of the auger blades, the stirred powder is collided again, and therefore the stirring efficiency is improved. And the mixing quality of the powder is higher and the mixing speed is higher through multiple times of stirring, mixing and impacting, so that the discharging quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the mixing equipment technical field, more specifically, it is especially related to a powder mixing machine. BACKGROUND

[0002] In the pharmaceutical industry, the particle size distribution of powder material is one of the key material parameters that need to be carefully considered in the process of drug research and development and product quality control. In addition, how to uniformly mix the powder is also a problem that pharmaceutical practitioners have been concerned about.

[0003] In the prior art, before mixing the powder, the mixed material needs to be poured into the mixing cylinder, and then other additives are added. The internal mixed powder material is stirred and mixed by using a stirring device, so that the powder presents the state we need. Under normal circumstances, the stirring device can mix most of the powder inside, but as the amount increases, the internal mixture is too much, and the single stirring device and mixing form are difficult to completely mix the powder, resulting in low mixing quality and low mixing rate, thereby affecting the discharge quality.

[0004] Therefore, in view of the above problems, the existing structure and defects are improved, and a powder mixing machine is provided to achieve a more practical value. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a kind of powder mixing machine, by following specific technical means is achieved:

[0006] A kind of powder mixing machine, including mixing cylinder, feed inlet and discharge port, the top of the mixing cylinder is equipped with first motor, the two sides of the first motor are equipped with connecting frame, the one end of two connecting frames is fixed with mixing cylinder, the output of the first motor is through mixing cylinder and extends to its interior, the output of the first motor is equipped with stirring shaft, the outer shaft wall of the stirring shaft is equipped with multiple stirring blades, the outside of the stirring shaft is provided with cleaning mechanism, the lower portion of the mixing cylinder is equipped with working chamber, the inside of the working chamber is provided with transmission mechanism.

[0007] Preferably, the transmission mechanism comprises a second motor, one end of the second motor is fixed with one side of the inner wall of the working chamber, the output end of the second motor is provided with a rotating shaft, one end of the rotating shaft is rotatably connected with one side of the inner wall of the working chamber, the outer shaft wall of the rotating shaft is provided with two driving gears, one side of each of the two driving gears is rotatably provided with a driven gear, the center of each of the two driven gears is provided with a vertical shaft, one end of each of the two vertical shafts penetrates through the working chamber and the mixing barrel and extends to the inside of the mixing barrel, the outer side of each of the two vertical shafts is provided with a screw blade, the outer side of each of the two screw blades is sleeved with a conveying barrel, the bottom of the conveying barrel is fixed with the lower side of the inner wall of the mixing barrel, and the bottom side of each of the two conveying barrels is provided with an opening.

[0008] Preferably, the cleaning mechanism comprises a fixed seat, the fixed seat is fixed on the outer side of the stirring shaft, the two sides of the fixed seat are provided with second scrapers, and the upper surface of the fixed seat is provided with two grooves, and the inside of each of the two grooves is provided with a first scraper.

[0009] Preferably, one side of each of the two second scrapers is hollowed out, and each of the two second scrapers is attached to the inner wall of the mixing barrel; and the upper surface of each of the two first scrapers is attached to the upper side of the inner wall of the mixing barrel.

[0010] Preferably, each of the two first scrapers and the second scraper is made of steel.

[0011] Preferably, an electromagnetic valve is arranged at the discharge port.

[0012] Preferably, a plurality of footings are arranged on the lower surface of the mixing barrel.

[0013] Compared with the prior art, the powder mixer has the following beneficial effects:

[0014] The second motor, the rotating shaft, the driving gears, the driven gears and the two screw blades are cooperatively used to lift the mixed powder in the inside of the conveying barrel from the bottom of the conveying barrel to the upper side, and the powder is thrown from the upper side to the lower side by the screw blades, so that the mixed powder is collided again, and the mixed quality is higher and the mixing rate is faster, and the quality of the discharged powder is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the main structure of the powder mixer.

[0016] Figure 2It is partial structure schematic view of powder mixer of the utility model.

[0017] Figure 3 It is auger blade structure schematic view of powder mixer of the utility model.

[0018] Figure 4 It is cross section structure schematic view of powder mixer of the utility model.

[0019] In the drawing, the corresponding relationship of component name and drawing number is as follows:

[0020] 1, mixing cylinder;2, footing;3, discharge port;4, electromagnetic valve;5, feed inlet;6, first motor;7, connecting frame;8, stirring shaft;9, stirring blade;10, fixed seat;11, first scraper;12, second scraper;13, working chamber;14, second motor;15, rotating shaft;16, driving gear;17, driven gear;18, auger blade;19, conveying cylinder;20, groove;21, opening;22, vertical shaft. DETAILED DESCRIPTION

[0021] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0022] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Embodiment:

[0025] As shown in the accompanying drawings: Figure 1 To the accompanying drawings: Figure 4 As shown:

[0026] The utility model provides a kind of powder mixing machine, including mixing barrel 1, feed inlet 5 and discharge port 3, the top of mixing barrel 1 is equipped with first motor 6, both sides of first motor 6 are equipped with connecting frame 7, one end of two connecting frames 7 is fixed with mixing barrel 1, the output of first motor 6 is through mixing barrel 1 and extends to its inside, the output of first motor 6 is equipped with stirring shaft 8, the outer shaft wall of stirring shaft 8 is equipped with multiple stirring blades 9, the outside of stirring shaft 8 is provided with cleaning mechanism, the below of mixing barrel 1 is equipped with working chamber 13, the inside of working chamber 13 is provided with transmission mechanism.

[0027] Wherein, transmission mechanism includes second motor 14, one end of second motor 14 is fixed with the inside wall of working chamber 13, the output of second motor 14 is equipped with shaft 15, one end of shaft 15 is rotatably connected with the inside wall of working chamber 13, the outer shaft wall of shaft 15 is equipped with two driving gears 16, one side of two driving gears 16 is equipped with driven gear 17, the center of two driven gears 17 is equipped with vertical shaft 22, one end of two vertical shafts 22 is through working chamber 13 and mixing barrel 1 and extends to the inside of mixing barrel 1, the outside of two vertical shafts 22 is equipped with auger blade 18, the outside of two auger blades 18 is equipped with feed cylinder 19, the bottom of feed cylinder 19 is fixed with the below of mixing barrel 1 inner wall, the bottom side of two feed cylinders 19 is equipped with opening 21, by the cooperation of second motor 14, shaft 15, driving gear 16, driven gear 17 and two auger blades 18, the powder that has been mixed inside can be lifted from the bottom of feed cylinder 19 to the top, by the action of auger blade 18, the powder can be thrown from the top to the bottom, so that the powder after stirring is collided again, multiple stirring, mixing, impact makes the mixing quality of powder higher, and the mixing rate is faster, improves the quality of discharge.

[0028] Wherein, cleaning mechanism includes fixed seat 10, fixed seat 10 is fixed on the outside of stirring shaft 8, second scraper 12 is installed on both sides of fixed seat 10, two recesses 20 are formed on the upper surface of fixed seat 10, first scraper 11 is installed in the inside of two recesses 20.

[0029] Wherein, one side of two second scrapers 12 is hollowed out, two second scrapers 12 are arranged in close contact with the inner wall of mixing barrel 1, the upper surface of two first scrapers 11 is arranged in close contact with the top of mixing barrel 1 inner wall, the powder slag in mixing barrel 1 inner wall and inner top cover can be scraped by two first scrapers 11 and second scrapers 12, to prevent the phenomenon of powder agglomeration, so as to cause the mixing rate of device to be affected, prolong the service life of device.

[0030] The two first scrapers 11 and the second scraper 12 are both made of steel material, the steel material has strong hardness, the service life of the device can be prolonged, and wear can be avoided.

[0031] The electromagnetic valve 4 is installed at the discharge port 3, and the electromagnetic valve 4 can control the discharge.

[0032] The lower surface of the mixing barrel 1 is provided with a plurality of footings 2, the footings 2 can improve the stability of the device, and the device can be relatively stable during operation.

[0033] The working principle of the embodiment is as follows: first, when the powder needs to be mixed, the first motor 6 is started to rotate, and the stirring shaft 8 is driven to rotate when the first motor 6 rotates, and the plurality of stirring blades 9 are driven to rotate, so that the powder in the mixing barrel 1 is stirred and mixed;

[0034] Secondly, the rotation of the stirring shaft 8 can synchronously drive the first scraper 11 and the second scraper 12 on the two sides to clean the residual powder residues on the inner top and the inner wall of the mixing barrel 1, so that the mixing effect is not affected by the excess powder adhered to the inside of the device during the mixing of the powder, and the service life of the device is guaranteed.

[0035] Finally, during the first mixing of the stirring blades 9, the second motor 14 is started to run synchronously, the rotation of the second motor 14 can drive the rotating shaft 15 and the two driving gears 16 to run, and the two driving gears 16 can drive the two driven gears 17 to run synchronously, so that the two vertical shafts 22 are driven to run, thereby driving the two auger blades 18 to run in the inside of the conveying barrel 19, when the two auger blades 18 run, the powder from the opening 21 is lifted to the upper part, and then is thrown to the inner bottom of the mixing barrel 1 under the action of the auger blades 18, through the form of impact between the powder and the powder, multiple mixing and stirring are completed, and the mixing rate and the discharge quality of the device are greatly improved.

[0036] The embodiments of the utility model are given for example and description, and are not exhaustive or limit the utility model to the disclosed forms. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A powder mixer comprising a mixing drum (1), an inlet (5) and an outlet (3), characterized in that: The upper part of the mixing barrel (1) is provided with a first motor (6), the two sides of the first motor (6) are provided with connecting frames (7), one end of the two connecting frames (7) is fixed with the mixing barrel (1), the output end of the first motor (6) penetrates the mixing barrel (1) and extends to the inside thereof, the output end of the first motor (6) is provided with a stirring shaft (8), the outer shaft wall of the stirring shaft (8) is provided with a plurality of stirring blades (9), the outer side of the stirring shaft (8) is provided with a cleaning mechanism, the lower part of the mixing barrel (1) is provided with a working chamber (13), and the inside of the working chamber (13) is provided with a transmission mechanism.

2. The powder blender of claim 1, wherein: The transmission mechanism comprises a second motor (14), one end of the second motor (14) is fixed with one side of the inner wall of the working chamber (13), the output end of the second motor (14) is provided with a rotating shaft (15), one end of the rotating shaft (15) is rotatably connected with one side of the inner wall of the working chamber (13), the outer shaft wall of the rotating shaft (15) is provided with two driving gears (16), one side of each of the two driving gears (16) is provided with a driven gear (17), the center of each of the two driven gears (17) is provided with a vertical shaft (22), one end of each of the two vertical shafts (22) penetrates the working chamber (13) and the mixing barrel (1) and extends to the inside of the mixing barrel (1), the outer side of each of the two vertical shafts (22) is provided with a screw conveyor blade (18), the outer side of each of the two screw conveyor blades (18) is provided with a conveying barrel (19), the bottom of the conveying barrel (19) is fixed with the lower part of the inner wall of the mixing barrel (1), and the bottom side of each of the two conveying barrels (19) is provided with an opening (21).

3. The powder blender of claim 1, wherein: The cleaning mechanism comprises a fixed seat (10), the fixed seat (10) is fixed on the outer side of the stirring shaft (8), the two sides of the fixed seat (10) are provided with second scrapers (12), and the upper surface of the fixed seat (10) is provided with two grooves (20), and the inside of each of the two grooves (20) is provided with a first scraper (11).

4. The powder blender of claim 3, wherein: One side of each of the two second scrapers (12) is hollowed out, and each of the two second scrapers (12) is arranged in close contact with the inner wall of the mixing barrel (1), and the upper surface of each of the two first scrapers (11) is arranged in close contact with the upper part of the inner wall of the mixing barrel (1).

5. The powder blender of claim 4, wherein: Each of the two first scrapers (11) and the second scraper (12) is made of steel.

6. The powder blender of claim 1 wherein: The discharge port (3) is provided with an electromagnetic valve (4).

7. The powder blender of claim 1 wherein: The lower surface of the mixing barrel (1) is provided with a plurality of footings (2).

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