Tablet production stirring device

Abstract

The utility model relates to the technical field of medical tablet production and application, in particular to a tablet production stirring device. The stirring device comprises a stirring barrel, a first stirring device is fixedly connected to the center of the top of the stirring barrel, a stirring shaft of the first stirring device is coaxially sleeved with a frame type stirrer, and a plurality of scraping plates are arranged on the side face, close to the inner wall of the stirrer, of the frame type stirrer; a first stirring blade is fixedly connected to the exterior of a stirring shaft, away from the frame type stirring barrel, of the first stirring device, the top of the stirring barrel communicates with a funnel type feeding pipe, and a second stirring device is arranged above the funnel type feeding pipe; according to the utility model, the phenomenon that medicinal powder is adhered to the wall is treated by additionally arranging the scraping plate, and the medicinal powder is prevented from being blocked by additionally arranging the stirring rod and the stirring blade at the material inlet and the material outlet, so that the working efficiency and the convenience of the stirring barrel are improved.

Description

Technical Field

[0001] This utility model relates to the field of medical tablet production and application technology, specifically, to a tablet production stirring device. Background Technology

[0002] Tablets are solid dosage forms that are formed by uniformly mixing drugs and excipients and then compressing them into tablets or irregularly shaped tablets. Tablets are mainly oral tablets, but there are also lozenges, sublingual tablets, oral patches, chewable tablets, dispersible tablets, effervescent tablets, vaginal tablets, immediate-release or sustained-release or controlled-release tablets, and enteric-coated tablets, etc. When manufacturing tablets, the tablet powder needs to be fully mixed first, and then the tablets are manufactured using a tablet press. A mixing and stirring device is required when mixing the tablet raw material powder.

[0003] There are many existing technologies for mixing devices in tablet production, such as:

[0004] Chinese patent application CN201920118812.4 discloses a pharmaceutical equipment for mixing tablet powder, including a mixing tank. The lower end of the mixing tank has a conical structure, and a feed inlet is provided on one side of the upper surface of the mixing tank. A connecting motor is bolted to the center of the upper surface of the mixing tank. The connecting motor can drive the supporting shaft to rotate, which in turn drives the spiral stirring blades to rotate. The spiral stirring blades and the connecting pipe work together to convey the raw materials at the bottom of the mixing tank to the top. The supporting shaft drives the fan blades to rotate, which blows air to disperse the raw materials at the top of the mixing tank. The supporting shaft also drives the L-shaped connecting frame to rotate, which in turn drives the horizontal stirring frame to stir, making the mixing more uniform. This pharmaceutical equipment for mixing tablet powder has a simple structure and is easy to operate. It not only makes the raw materials more uniform but also makes the mixing faster.

[0005] However, during mixing, due to the gap between the mixing device and the inner wall of the mixing tank, the mixing device cannot effectively handle the powder adhering to the inner wall of the mixing tank. Furthermore, since there is no mixing measure at the bottom of the mixing tank, if the powder in the upper layer is not stirred in time and falls into the conical bottom, it cannot be mixed with other powders. Moreover, when there is a large amount of powder in the inlet and outlet, it may become blocked because the inlet and outlet are too small. If the inlet and outlet are made too large, the sealing effect of the mixing tank cannot be guaranteed. In view of this, we propose a mixing device for tablet production. Utility Model Content

[0006] The purpose of this invention is to provide a stirring device for tablet production to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides a tablet production stirring device, including a stirring tank. A first stirring device is fixedly connected to the center of the top of the stirring tank. A frame-type stirrer is coaxially sleeved on the stirring shaft of the first stirring device. Multiple scrapers are provided on the side of the frame-type stirrer near the inner wall of the stirring tank. A first stirring blade is fixedly connected to the outside of the stirring shaft of the first stirring device away from the frame-type stirrer. The top of the stirring tank is connected to a funnel-shaped feed pipe. A second stirring device is provided above the funnel-shaped feed pipe. A second stirring blade is fixedly connected to the outside of the stirring shaft of the second stirring device.

[0008] As a further improvement to this technical solution, two semi-circular connecting caps are fitted at the top of the funnel-shaped feed pipe. A semi-circular notch is provided at the center of the top of the semi-circular connecting cap. The stirring shaft of the second stirring device extends into the inside of the funnel-shaped feed pipe through the semi-circular notch. The two semi-circular connecting caps are connected by a snap fastener.

[0009] As a further improvement to this technical solution, a mixing switch is provided on the top surface of the mixing tank, and four support legs are uniformly welded to the outside of the mixing tank.

[0010] As a further improvement to this technical solution, the bottom of the mixing tank is connected to a discharge pipe, a valve is fixedly installed on the outside of the discharge pipe, and a discharge bucket is placed below the discharge pipe.

[0011] As a further improvement to this technical solution, the valve's rotating rod is extended to the front side of the mixing tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: multiple scrapers are fixedly connected to the side of the frame mixer near the inner wall of the mixing tank. The scrapers can clean away the powder adhering to the inner wall of the mixing tank. Furthermore, by setting the stirring shaft and stirring blades at the inlet and outlet, it is ensured that even if a large amount of powder accumulates at the inlet and outlet, the powder can be gradually moved downwards by stirring, preventing blockage at the inlet and outlet. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall cross-section of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the stirring device of this utility model;

[0016] The meanings of the labels in the diagram are as follows:

[0017] 1. Mixing tank; 2. First mixing device; 3. Frame mixer; 4. Scraper; 5. First mixing blade; 6. Funnel-shaped feed pipe; 7. Second mixing device; 8. Second mixing blade; 9. Semi-circular connecting cover; 10. Discharge pipe; 11. Valve; 12. Mixing switch; 13. Support leg; 14. Discharge tank. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3 As shown, this embodiment provides a tablet production mixing device, including a mixing tank 1. Various pharmaceutical powders are placed in the mixing tank 1 for mixing, facilitating the mixing of the powders for the next step in the pharmaceutical process. However, because smaller particle sizes and larger specific surface areas generally result in stronger adsorption capacity, these powders tend to adhere to the inner wall of the mixing tank 1 during the mixing process. If not handled promptly, this can lead to resource waste. Furthermore, when adding or releasing pharmaceutical powders, the inlet and outlet ports are relatively small compared to the mixing tank 1; if a large amount of powder accumulates, it can cause blockages at the inlet and outlet ports, making the device very inconvenient to use. Therefore, the specific details are as follows: It includes a mixing tank 1, a first stirring device 2 is fixedly connected to the top center of the mixing tank 1, a frame stirrer 3 is coaxially sleeved on the stirring shaft of the first stirring device 2, a plurality of scrapers 4 are provided on the side of the frame stirrer 3 near the inner wall of the mixing tank 1, a first stirring blade 5 is fixedly connected to the outside of the stirring shaft of the first stirring device 2 away from the frame stirrer 3, the top of the mixing tank 1 is connected to a funnel-shaped feed pipe 6, a second stirring device 7 is provided above the funnel-shaped feed pipe 6, and a second stirring blade 8 is fixedly connected to the outside of the stirring shaft of the second stirring device 7.

[0020] The improvement of this embodiment is that: multiple kinds of medicinal powders are fed into the mixing tank 1 smoothly through the funnel-shaped feed pipe 6 under the rotation of the second stirring device 7 and the second stirring blade 8, so as to avoid clogging due to excessive medicinal powder. Multiple scrapers 4 are fixedly connected to the side of the frame-type stirrer 3 near the inner wall of the mixing tank 1. The scrapers 4 clean the medicinal powder remaining on the inner wall of the mixing tank 1, reducing resource waste. After the stirring is completed, the first stirring blade 5 of the first stirring device 2 is used to stir to ensure that there is no clogging when discharging.

[0021] Considering that the stirring shaft of the second stirring device 7 needs to penetrate deep into the funnel-shaped feed pipe 6, and that the funnel-shaped feed pipe 6 needs to have a notch that matches the stirring shaft of the second stirring device 7 to ensure that the second stirring device 7 can stir normally, and to ensure that it is in a sealed state during stirring, the specific details are as follows: two semi-circular connecting caps 9 are fitted into the top of the funnel-shaped feed pipe 6. A semi-circular notch is opened at the center of the top of the semi-circular connecting cap 9. The stirring shaft of the second stirring device 7 penetrates deep into the funnel-shaped feed pipe 6 through the semi-circular notch. The two semi-circular connecting caps 9 are connected by a snap fastener. The semi-circular notch at the center of the top of the semi-circular connecting cap 9 ensures that the stirring shaft of the second stirring device 7 penetrates deep into the funnel-shaped feed pipe 6 and stirs. The snap fastener between the two semi-circular connecting caps 9 ensures the sealing of the mixing tank 1.

[0022] Considering that the two motors perform different tasks when powered on, it is inconvenient to set them to the same switch. In addition, the stability of the mixing tank 1 must be ensured. Therefore, the following is the specific arrangement: a mixing switch 12 is provided on the top surface of the mixing tank 1, and four support legs 13 are evenly welded to the outside of the mixing tank 1. The mixing switch 12 ensures that different motors can be turned on under different tasks. The four support legs 13 and the increased surface area of ​​the bottom of the support legs 13 in contact with the ground increase the stability of the mixing tank 1.

[0023] To ensure the sealing of the mixing tank 1 and to control the discharge speed during discharge to prevent excessive powder from colliding with the discharge bucket 14 and scattering outside the discharge bucket 14, thus wasting resources, the following is specifically implemented: The bottom of the mixing tank 1 is connected to a discharge pipe 10, and a valve 11 is fixedly installed on the outside of the discharge pipe 10. The discharge bucket 14 is placed below the discharge pipe 10. Installing the valve 11 can ensure the sealing of the mixing tank 1, and at the same time, the opening size of the valve 11 can be controlled to control the discharge speed, thereby making the discharge operation more convenient. The discharge bucket 14 is set separately to facilitate the user's movement of the discharge bucket 14.

[0024] Considering that it is neither safe nor convenient for the user to rotate the valve 11 at the bottom of the mixing tank 1, the following is proposed: the rotating rod of the valve 11 is extended to the front of the mixing tank 1. By extending the rotating rod, the user can rotate the valve 11 from the front of the mixing tank 1, which increases the convenience for the user and improves the safety.

[0025] In practical use, the tablet production stirring device of this utility model involves simultaneously opening the semi-circular connecting cover 9 and the switch of the second stirring device 7, slowly pouring various powdered medicines into the funnel-shaped feed pipe 6, and after feeding, connecting the semi-circular connecting cover 9 with a snap fastener while simultaneously closing the switch of the second stirring device 7. Then, opening the switch of the first stirring device 2 for stirring, and after stirring, aligning the discharge bucket 14 with the discharge pipe 10, and then opening the valve 11 for discharging, and after discharging, closing the valve 11 and the switch of the first stirring device 2.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tablet production stirring device comprising a stirring vat (1), characterized in that: The stirring barrel (1) top center fixed connection first stirring device (2), the first stirring device (2) stirring shaft coaxial sleeve frame stirrer (3), the frame stirrer (3) close to the stirring barrel (1) inner wall side is equipped with a plurality of scraper (4), the first stirring device (2) away from the frame stirrer (3) stirring shaft outside fixed connection first stirring vane (5), the stirring barrel (1) top communication funnel type feeding pipe (6), the funnel type feeding pipe (6) above is equipped with second stirring device (7), the second stirring device (7) stirring shaft outside fixed connection has second stirring vane (8).

2. A tablet production agitator according to claim 1, characterized in that: The funnel type feeding pipe (6) top inlay has two semicircle type connecting cover (9), the semicircle type connecting cover (9) top center is equipped with semicircle type gap, the second stirring device (7) stirring shaft through semicircle type gap goes into the funnel type feeding pipe (6) inside, the two semicircle type connecting cover (9) between through buckle connection.

3. A tablet production agitator according to claim 1, characterized in that: The stirring barrel (1) top surface is equipped with mixing switch (12), the stirring barrel (1) outside evenly welded four support leg (13).

4. The tablet production stirring device according to claim 1, characterized in that: The stirring barrel (1) bottom end communication has discharge pipe (10), the discharge pipe (10) outside fixed mounting has valve (11), the discharge pipe (10) below placed has discharge barrel (14).

5. A tablet production agitator according to claim 4, characterized in that: The rotating rod of the valve (11) extends to the front side of the stirring barrel (1).

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