Automatic liquid preparation device for pharmacy

Abstract

The utility model discloses an automatic liquid preparation device for pharmacy, which comprises a liquid preparation tank, a plurality of feeding pipelines are arranged at the top of the liquid preparation tank, a driving mechanism is arranged at the center of the top of the liquid preparation tank, the output end of the driving mechanism is connected with a stirring shaft, and the lower part of the stirring shaft extends into the liquid preparation tank. The utility model relates to the technical field of medicine processing, a set of impact stirring component is additionally arranged at the bottom of the liquid preparation tank, the impact stirring component at the lower part is started while the traditional stirring shaft and the stirring blade are used for stirring liquid medicine, so that the liquid medicine can be uniformly mixed, and the liquid medicine can be uniformly mixed. The rotation direction of the impact stirring assembly is opposite to that of the stirring shaft, so that the upper and lower parts of the liquid medicine form bidirectional vortexes, liquid flows of the upper and lower vortexes impact each other, and the stirring effect on the liquid medicine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical processing, in particular to an automatic liquid dispensing device for pharmaceuticals. Background Art

[0002] A liquid mixing tank, also known as a preparation tank or a blending tank, is a mixing and stirring container for mixing one or several materials according to a process ratio. It is a widely used device in pharmaceutical production. When processing medicines, it is generally necessary to use a liquid mixing tank to mix a variety of different drugs to obtain new drugs. A traditional liquid mixing tank is mainly composed of a tank body and a stirring device. The stirring device includes a plurality of blades for stirring materials. The blades rotate to drive the solution in the tank body to perform regular circular motion, thereby stirring and mixing the solution. However, the solution is prone to form a large vortex under the action of centrifugal force, that is, there is a swirling situation, which makes it difficult for the upper and lower layers of the solution in the tank body to be axially mixed, resulting in uneven stirring of the drug solution in the stirring tank and low liquid mixing operation efficiency. In view of this, in-depth research on the above problems resulted in this case. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides an automatic liquid dispensing device for pharmaceutical use, which solves the problems raised in the background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic liquid dispensing device for pharmaceutical use, comprising a liquid dispensing tank, a plurality of feeding pipes are arranged on the top of the liquid dispensing tank, a driving mechanism is provided at the center position of the top of the liquid dispensing tank, the output end of the driving mechanism is connected to a stirring shaft, the lower part of the stirring shaft extends into the liquid dispensing tank, the stirring shaft is provided with stirring blades, an impact stirring assembly is provided at the bottom of the liquid dispensing tank, a collecting hopper is connected to one side of the impact stirring assembly, a discharge pipe is provided at the lower part of the collecting hopper, one end of the discharge pipe is connected to a discharge pump, a three-way valve is provided at the outlet end of the discharge pump, one outlet of the three-way valve is connected to the finished product tank, and the other outlet is connected to the reflux pipe, an annular liquid injection assembly is provided in the liquid dispensing tank, and one end of the reflux pipe is connected to the annular liquid injection assembly.

[0005] The above-mentioned impact stirring assembly includes a stepping motor, a reducer, a fixed shaft and a propulsion stirring paddle. The input end of the reducer is connected to the output end of the stepping motor. The fixed shaft is inserted into the bottom surface of the liquid mixing tank and is sealed with the liquid mixing tank for rotation. The lower end of the fixed shaft is connected to the output end of the reducer, and the propulsion stirring paddle is mounted on the upper end of the fixed shaft.

[0006] The above-mentioned annular liquid injection assembly includes an annular tube, an injection tube and a connecting tube. The annular tube is arranged in the liquid dispensing tank and is located above the stirring blade. The injection tube is arranged along an annular array on the lower side wall of the injection tube and arranged along an inclined direction. One end of the connecting tube is connected to the annular tube, and the other end extends to the outside of the liquid dispensing tank and is connected to the reflux pipe.

[0007] One end of the feeding pipeline is connected to a liquid supply component.

[0008] The above-mentioned liquid supply component includes a raw material pipeline and a metering pump. One end of the raw material pipeline is connected to the raw material tank, and the liquid inlet end of the metering pump is connected to the raw material pipeline, and the liquid discharge end is connected to the feeding pipeline.

[0009] A sampling port is provided on the top of the liquid dispensing tank, and a sealing cover is buckled on the upper end of the sampling port.

[0010] The utility model provides an automatic liquid dispensing device for pharmaceutical use. It has the following beneficial effects: the automatic liquid dispensing device for pharmaceutical use improves the existing liquid dispensing tank by adding a set of impact stirring components at the bottom of the liquid dispensing tank. While using a traditional stirring shaft and stirring blades to stir the liquid medicine, the impact stirring component at the bottom is started. The rotation direction of the impact stirring component is opposite to that of the stirring shaft, thereby forming a bidirectional vortex in the upper and lower parts of the liquid medicine. The liquid flows of the upper and lower vortices impact each other, thereby improving the stirring effect of the liquid medicine. At the same time, the liquid medicine is extracted from the bottom of the liquid dispensing tank by cooperating with a discharge pump and returned to the liquid dispensing tank through a reflux pipe and an annular liquid injection component, further improving the fluidity of the solution between the upper and lower layers in the tank body, improving the uniformity of the liquid dispensing and stirring of the medicine, and greatly improving the efficiency of the liquid dispensing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The figure is a schematic diagram of the three-dimensional structure of an automatic liquid dispensing device for pharmaceutical use described in the utility model.

[0012] Figure 2 This is a schematic diagram of the main structure of an automatic liquid dispensing device for pharmaceutical use described in the utility model.

[0013] Figure 3 This is a schematic diagram of the top view of the automatic liquid dispensing device for pharmaceutical use described in the utility model.

[0014] Figure 4 This is a schematic diagram of the main cross-sectional structure of an automatic liquid dispensing device for pharmaceutical use described in the utility model.

[0015] In the figure: 1. Liquid mixing tank; 2. Feeding pipe; 3. Driving mechanism; 4. Stirring shaft; 5. Stirring blade; 6. Collecting hopper; 7. Discharge pipe; 8. Discharge pump; 9. Three-way valve; 10. Reflux pipe; 11. Stepper motor; 12. Reducer; 13. Fixed shaft; 14. Propeller stirring paddle; 15. Annular pipe; 16. Liquid injection pipe; 17. Connecting pipe; 18. Raw material pipeline; 19. Metering pump; 20. Sampling port. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example: In conjunction with the specification Figure 1-4 It can be seen that the present application specifically designs an automatic liquid dispensing device for pharmaceutical use, including a liquid dispensing tank 1, a plurality of feeding pipes 2 are arranged on the top of the liquid dispensing tank 1, a driving mechanism 3 is arranged at the center position of the top of the liquid dispensing tank 1, the output end of the driving mechanism 3 is connected to a stirring shaft 4, the lower part of the stirring shaft 4 extends into the liquid dispensing tank 1, and a stirring blade 5 is set on the stirring shaft 4. An impact stirring component is provided at the bottom of the liquid dispensing tank 1, a collecting hopper 6 is connected to one side of the impact stirring component, a discharge pipe 7 is provided at the lower part of the collecting hopper 6, a discharge pipe 7 is connected to one end of the discharge pipe 7 with a discharge pump 8, and a three-way valve 9 is provided at the outlet end of the discharge pump 8, one outlet of the three-way valve 9 is connected to the finished product tank, and the other outlet is connected to the reflux pipe 10, an annular liquid injection component is provided in the liquid dispensing tank 1, and the reflux pipe 10 One end is connected to the annular liquid injection component, and the existing liquid preparation tank 1 is improved. A set of impact stirring components is added to the bottom of the liquid preparation tank 1. While the traditional stirring shaft 4 and stirring blades 5 are used to stir the medicine liquid, the lower impact stirring component is started. The rotation direction of the impact stirring component is opposite to the rotation direction of the stirring shaft 4, so that the upper and lower parts of the medicine liquid form a two-way vortex. The liquid flows of the upper and lower vortices impact each other, which improves the stirring effect of the medicine liquid. At the same time, the discharge pump 8 is used to extract the medicine liquid from the bottom of the liquid preparation tank 1 and return it to the liquid preparation tank 1 through the reflux pipe 10 and the annular liquid injection component, further improving the fluidity of the solution between the upper and lower layers in the tank body, improving the uniformity of the medicine preparation and stirring, and greatly improving the efficiency of the preparation operation.

[0018] In the specific implementation process, as a preferred setting, the above-mentioned impact stirring assembly includes a stepping motor 11, a reducer 12, a fixed shaft 13 and a propulsion stirring paddle 14. The input end of the reducer 12 is connected to the output end of the stepping motor 11, the fixed shaft 13 is inserted into the bottom surface of the liquid mixing tank 1 and is sealed with the liquid mixing tank 1 for rotation. The lower end of the fixed shaft 13 is connected to the output end of the reducer 12, and the propulsion stirring paddle 14 is sleeved on the upper end of the fixed shaft 13. When in use, the upper driving mechanism 3 is started and the stepping motor 11 is started at the same time. The stepping motor 11 is used to drive the reducer 12 to move, thereby realizing the rotation control of the fixed shaft 13. When the fixed shaft 13 rotates, it drives the propulsion stirring paddle 14 connected thereto to rotate, thereby stirring the liquid at the lower part of the liquid mixing tank 1. The rotation direction of the fixed shaft 13 is opposite to that of the stirring shaft 4, so that the liquid in the liquid mixing tank 1 is fully contacted, thereby improving the uniformity of the liquid mixing.

[0019] In the specific implementation process, as a preferred setting, the above-mentioned annular liquid injection component includes an annular tube 15, an injection tube 16 and a connecting tube 17. The annular tube 15 is arranged in the liquid dispensing tank 1 and is located above the stirring blade 5. The injection tube 16 is arranged along an annular array on the lower side wall of the injection tube 16 and is arranged along an inclined direction. One end of the connecting tube 17 is connected to the annular tube 15, and the other end extends to the outside of the liquid dispensing tank 1 and is connected to the reflux pipe 10. During the liquid dispensing and stirring process, the drainage pump is started, and the drainage pump is used to extract the liquid from the lower part of the liquid dispensing tank 1, and injected into the annular tube 15 through the reflux pipe 10 and the connecting tube 17, and then further injected into the top of the liquid dispensing tank 1 through the injection tube 16, realizing a bottom-up external circulation channel for the liquid, thereby improving the vertical flow of the liquid in the tank body and improving the uniformity of mixing and stirring.

[0020] During the specific implementation process, as a preferred setting, one end of the above-mentioned feeding pipeline 2 is connected to a liquid preparation supply component, wherein the liquid preparation supply component includes a raw material pipeline 18 and a metering pump 19. One end of the raw material pipeline 18 is connected to the raw material tank, and the liquid inlet end of the metering pump 19 is connected to the raw material pipeline 18, and the liquid discharge end is connected to the feeding pipeline 2. The metering pump 19 is used to quantitatively inject various raw materials, pharmaceuticals and solvents in the raw material pipeline 18 into the tank body. The structure is simple and the degree of automation is high, which can further improve the liquid preparation efficiency.

[0021] In the specific implementation process, as a preferred setting, the top of the liquid preparation tank 1 is provided with a sampling port 20, and the upper end of the sampling port 20 is buckled with a sealing cover to facilitate sampling and testing of the liquid medicine in the tank.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated liquid dispensing device for pharmaceutical use, comprising a liquid dispensing tank, a plurality of feeding pipes being provided on the top of the liquid dispensing tank, a driving mechanism being provided at the center of the top of the liquid dispensing tank, an output end of the driving mechanism being connected to a stirring shaft, the lower portion of the stirring shaft extending into the liquid dispensing tank, and a stirring blade being mounted on the stirring shaft, characterized in that: An impact stirring assembly is provided at the bottom of the liquid dispensing tank, one side of the impact stirring assembly is connected to a collecting hopper, a discharge pipe is provided at the lower part of the collecting hopper, one end of the discharge pipe is connected to a discharge pump, a three-way valve is provided at the outlet end of the discharge pump, one outlet of the three-way valve is connected to the finished product tank, and the other outlet is connected to the return pipe, an annular liquid injection assembly is provided in the liquid dispensing tank, and one end of the return pipe is connected to the annular liquid injection assembly.

2. The automatic liquid dispensing device for pharmaceutical use according to claim 1, characterized in that: The impact stirring assembly includes a stepping motor, a reducer, a fixed shaft and a propulsion stirring paddle. The input end of the reducer is connected to the output end of the stepping motor. The fixed shaft is inserted into the bottom surface of the liquid mixing tank and is sealed with the liquid mixing tank for rotation. The lower end of the fixed shaft is connected to the output end of the reducer, and the propulsion stirring paddle is mounted on the upper end of the fixed shaft.

3. The automatic liquid dispensing device for pharmaceutical use according to claim 1, characterized in that: The annular liquid injection assembly includes an annular tube, an injection tube and a connecting tube. The annular tube is arranged in the liquid dispensing tank and above the stirring blade. The injection tube is arranged along an annular array on the lower side wall of the injection tube and arranged along an inclined direction. One end of the connecting tube is connected to the annular tube, and the other end extends to the outside of the liquid dispensing tank and is connected to the reflux pipe.

4. The automatic liquid dispensing device for pharmaceutical use according to claim 1, characterized in that: One end of the feeding pipeline is connected to a liquid supply component.

5. The automatic liquid dispensing device for pharmaceutical use according to claim 4, characterized in that: The liquid supply assembly includes a raw material pipeline and a metering pump. One end of the raw material pipeline is connected to the raw material tank. The liquid inlet end of the metering pump is connected to the raw material pipeline, and the liquid discharge end is connected to the feeding pipeline.

6. The automatic liquid dispensing device for pharmaceutical use according to claim 1, characterized in that: A sampling port is provided on the top of the liquid dispensing tank, and a sealing cover is buckled on the upper end of the sampling port.

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