Auxiliary feeding device for preparing sustained-release dry suspension

Abstract

The utility model relates to an auxiliary feeding device for preparing a sustained and controlled release dry suspension in the technical field of feeding equipment. Comprising a stirring tank and a feeding assembly, and the feeding assembly is arranged at the top of the stirring tank; the feeding assembly comprises a premixing barrel, the lower end of the premixing barrel extends into the stirring tank, a cover plate is arranged at the upper end of the premixing barrel, a plurality of feeding hoppers are evenly distributed on the cover plate in the circumferential direction, screen holes are fully distributed in the premixing barrel located in the stirring tank, a stirring assembly is arranged in the premixing barrel and comprises a rotating shaft, and crushing blades and a cleaning assembly are fixed to the rotating shaft. The sweeping assembly comprises a first sweeping brush and a second sweeping brush, bristles of the first sweeping brush make contact with the side wall of the premixing barrel, bristles of the second sweeping brush make contact with the bottom wall of the premixing barrel, and the upper end of the rotating shaft penetrates through the cover plate and then is connected with a first stepping motor. According to the utility model, all raw materials can be premixed, crushed and screened, so that the granularity of the materials entering the stirring tank is uniform, and the stirring effect and efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of feeding equipment, and particularly relates to an auxiliary feeding device for the preparation of sustained-release and controlled-release dry suspensions. Background Art

[0002] The sustained-release and controlled-release dry suspension is a pharmaceutical dosage form that combines the characteristics of sustained release and controlled release and is a suspension prepared by mixing the active ingredient and auxiliary substances in a dry mixing form. The authorized patent with the publication number of CN208389964U discloses an auxiliary material quantitative addition device for the preparation of granular drugs, including a mixing device main body. The mixing device main body is a cylindrical hollow structure, and a rotating shaft is rotatably installed at the center of the inner cavity top plate of the mixing device main body. The rotating shaft is arranged along the central axis of the mixing device main body. A rotating disk is installed at a position close to the top plate of the inner cavity of the mixing device main body. The rotating shaft passes through the center of the rotating disk and is fixedly connected with the rotating disk. Four material bins are equidistantly arranged on the rotating disk. A circular feeding port is opened at one end of the material bin close to the top plate, and a circular discharging port is opened at one end of the material bin far from the circular feeding port. Two limiting ring plates perpendicular to the rotating disk are arranged on the upper side of the rotating disk. Although this patent can realize the automatic quantitative addition of auxiliary materials and improve work efficiency, all materials enter from the same material bin and all enter the mixing device main body for mixing, resulting in low mixing efficiency and poor mixing effect, and the raw materials entering cannot be pretreated. Therefore, an auxiliary feeding device for the preparation of sustained-release and controlled-release dry suspensions is needed to solve the above technical problems. Content of the Utility Model

[0003] To solve the above-mentioned defects existing in the prior art, the utility model provides an auxiliary feeding device for the preparation of sustained-release and controlled-release dry suspensions; it includes a stirring tank and a feeding assembly, and the feeding assembly is arranged on the top of the stirring tank; the feeding assembly includes a premixing barrel, the lower end of the premixing barrel extends into the stirring tank, a cover plate is arranged at the upper end of the premixing barrel, and a plurality of feeding hoppers are evenly distributed along the circumferential direction on the cover plate, and the feeding hoppers are communicated with the premixing barrel;

[0004] The premixing barrel located in the stirring tank is covered with sieve holes, and a stirring assembly is arranged in the premixing barrel. The stirring assembly includes a rotating shaft, a crushing blade and a cleaning assembly are fixed on the rotating shaft. The cleaning assembly includes a first cleaning brush and a second cleaning brush. The first cleaning brush is fixedly connected with the rotating shaft through a first stirring rod, the bristles of the first cleaning brush are in contact with the side wall of the premixing barrel, the second cleaning brush is fixedly connected with the rotating shaft through a second stirring rod, the bristles of the second cleaning brush are in contact with the bottom wall of the premixing barrel, and the upper end of the rotating shaft penetrates through the cover plate and is connected with a first stepping motor.

[0005] The raw materials for preparing the sustained-release dry suspension enter the premixing barrel from the corresponding feed hoppers for pretreatment respectively. Specifically, the stepping motor 1 drives the rotating shaft to rotate, and the rotating shaft drives the stirring rod 1, the stirring rod 2 and the crushing blade to rotate. The stirring rod 1 and the stirring rod 2 can premix the materials, and the crushing blade plays a role in crushing the materials to prevent the materials from caking or having too large particles that do not meet the requirements. During the stirring process, the materials continuously enter the stirring tank through the sieve holes for sufficient stirring, and the cleaning brush 1 and the cleaning brush 2 clean the sieve holes to prevent blockage until all the materials enter the stirring tank.

[0006] Preferably, the premixing barrel is rotationally connected to the stirring tank through the bearing 1, and the premixing barrel is rotationally connected to the cover plate through the bearing 2. The cover plate is connected to the stirring tank through the column. A pulley 1 is provided on the outer wall of the premixing barrel located outside the stirring tank, a stepping motor 2 is provided on the stirring tank, and the output shaft of the stepping motor 2 is connected with a pulley 2. The pulley 1 and the pulley 2 are connected by a belt. This setting can drive the premixing barrel to rotate, and under the action of centrifugal force, the premixing effect is improved, and at the same time, the materials can enter the stirring tank efficiently.

[0007] Preferably, a connecting ring is provided on the stirring tank. The connecting ring is detachably connected to the stirring tank through the bolt 1. The premixing barrel passes through the connecting ring and is rotationally connected to the inner wall of the connecting ring through the bearing 1. This setting makes the premixing barrel detachable, and the premixing barrel can be thoroughly cleaned.

[0008] Preferably, the lower end of the column is fixedly connected to the stirring tank, and the upper end of the column is detachably connected to the cover plate through the bolt 2.

[0009] Preferably, the bottom of the premixing barrel is arc-shaped. This reduces the generation of dead corners and enables the materials to fully enter the stirring tank.

[0010] The present utility model further includes other components that can enable an auxiliary feeding device for preparing a sustained-release dry suspension to be used normally, such as the control components of the stepping motor 1, the control components of the stepping motor 2, etc., which are all conventional technical means in the art. In addition, the devices or components not defined in the present utility model, such as cleaning brushes, stepping motors, crushing blades, etc., all adopt conventional technical means and conventional equipment in the art.

[0011] The beneficial effects of the present utility model: It can premix, crush and screen the raw materials to ensure that the particle sizes of the materials entering the stirring tank are uniform, which is beneficial to improving the stirring effect and efficiency. Description of the Drawings

[0012] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0013] Figure 1This is a schematic structural diagram of an auxiliary feeding device for preparing sustained-release dry suspension in an embodiment of the present utility model;

[0014] Figure 2 is Figure 1 a top view of the middle cover plate.

[0015] In the figure: 1, stirring tank; 2, sieve holes; 3, premixing barrel; 4, cover plate; 5, pulley one; 6, column; 7, connecting ring; 8, feeding hopper; 9, stepping motor one; 10, rotating shaft; 11, crushing blade; 12, cleaning brush one; 13, cleaning brush two; 14, stepping motor two; 15, belt; 16, bolt two; 17, pulley two; 18, bolt one; 19, stirring rod one; 20, stirring rod two. Specific embodiments

[0016] The present utility model will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present utility model and specific embodiments. The description here is only used to explain the present utility model and does not limit the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts, any modifications, equivalent replacements, improvements, etc., shall be included within the protection scope of the present utility model.

[0017] Embodiment

[0018] As Figure 1-2 shown, the present utility model provides an auxiliary feeding device for preparing sustained-release dry suspension; including a stirring tank 1 and a feeding assembly, the feeding assembly is arranged on the top of the stirring tank 1; the feeding assembly includes a premixing barrel 3, the lower end of the premixing barrel 3 extends into the stirring tank 1, a cover plate 4 is provided at the upper end of the premixing barrel 3, and a plurality of feeding hoppers 8 are evenly distributed along the circumference on the cover plate 4, and the feeding hoppers 8 are communicated with the premixing barrel 3;

[0019] The premixing barrel 3 located in the stirring tank 1 is covered with sieve holes 2, a stirring assembly is arranged in the premixing barrel 3, the stirring assembly includes a rotating shaft 10, a crushing blade 11 and a cleaning assembly are fixed on the rotating shaft 10, the cleaning assembly includes a cleaning brush one 12 and a cleaning brush two 13, the cleaning brush one 12 is fixedly connected with the rotating shaft 10 through a stirring rod one 19, the bristles of the cleaning brush one 12 are in contact with the side wall of the premixing barrel 3, the cleaning brush two 13 is fixedly connected with the rotating shaft 10 through a stirring rod two 20, the bristles of the cleaning brush two 13 are in contact with the bottom wall of the premixing barrel 3, and the upper end of the rotating shaft 10 penetrates through the cover plate 4 and is connected with a stepping motor one 9.

[0020] The pre-mixing barrel 3 is rotationally connected to the mixing tank 1 through a first bearing, and the pre-mixing barrel 3 is rotationally connected to the cover plate 4 through a second bearing. The cover plate 4 is connected to the mixing tank 1 through a column 6. A first pulley 5 is provided on the outer wall of the pre-mixing barrel 3 located outside the mixing tank 1. A second stepping motor 14 is provided on the mixing tank 1, and the output shaft of the second stepping motor 14 is connected to a second pulley 17. The first pulley 5 and the second pulley 17 are connected by a belt 15. This setting can drive the pre-mixing barrel 3 to rotate. Under the action of centrifugal force, the pre-mixing effect is improved, and at the same time, the material can enter the mixing tank 1 efficiently.

[0021] A connecting ring 7 is provided on the mixing tank 1. The connecting ring 7 is detachably connected to the mixing tank 1 through a first bolt 18. The pre-mixing barrel 3 passes through the connecting ring 7 and is rotationally connected to the inner wall of the connecting ring 7 through a first bearing. This setting makes the pre-mixing barrel 3 detachable, and the pre-mixing barrel 3 can be thoroughly cleaned.

[0022] The lower end of the column 6 is fixedly connected to the mixing tank 1, and the upper end of the column 6 is detachably connected to the cover plate 4 through a second bolt 16.

[0023] The bottom of the pre-mixing barrel 3 is arc-shaped. This reduces the generation of dead corners and enables the material to fully enter the mixing tank 1.

[0024] Working principle: Each raw material for preparing the sustained-release dry suspension enters the pre-mixing barrel 3 from the corresponding feed hopper 8 respectively. The first stepping motor 9 drives the rotating shaft 10 to rotate, and the rotating shaft 10 drives the first stirring rod 19, the second stirring rod 20 and the crushing blade 11 to rotate. The first stirring rod 19 and the second stirring rod 20 can pre-mix the material, and the crushing blade 11 plays a role in crushing the material to prevent the material from caking or having particles that are too large and do not meet the requirements. During the stirring process, the material continuously enters the mixing tank 1 through the sieve holes 2 for full stirring. The first cleaning brush 12 and the second cleaning brush 13 clean the sieve holes 2 to prevent blockage until all the materials enter the mixing tank 1.

[0025] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An auxiliary feeding device for preparing a sustained-release dry suspension; comprising a stirring tank and a feeding assembly, wherein the feeding assembly is arranged on the top of the stirring tank; characterized in that: The feed assembly comprises a premixing barrel, the lower end of which extends into the mixing tank, and the upper end of which is provided with a cover plate, on which a plurality of feed hoppers are evenly distributed along the circumference, and the feed hoppers are connected with the premixing barrel; The premixing barrel located in the mixing tank is covered with sieve holes, and a stirring assembly is arranged in the premixing barrel, and the stirring assembly includes a rotating shaft, and a crushing blade and a cleaning assembly are fixed on the rotating shaft, and the cleaning assembly includes a cleaning brush 1 and a cleaning brush 2, and the cleaning brush 1 is fixedly connected to the rotating shaft through a stirring rod 1, and the bristles of the cleaning brush 1 are in contact with the side wall of the premixing barrel, and the cleaning brush 2 is fixedly connected to the rotating shaft through a stirring rod 2, and the bristles of the cleaning brush 2 are in contact with the bottom wall of the premixing barrel, and the upper end of the rotating shaft passes through the cover plate and is connected to a stepping motor 1.

2. The auxiliary feeding device for preparing a sustained-controlled release dry suspension according to claim 1, characterized in that: The premixing barrel is rotatably connected to the stirring tank via bearing 1, the premixing barrel is rotatably connected to the cover plate via bearing 2, the cover plate is connected to the stirring tank via a column, a pulley 1 is provided on the outer wall of the premixing barrel outside the stirring tank, a stepper motor 2 is provided on the stirring tank, an output shaft of the stepper motor 2 is connected to a pulley 2, and the pulley 1 and the pulley 2 are connected via a belt.

3. The auxiliary feeding device for preparing a sustained-controlled release dry suspension according to claim 2, characterized in that: The mixing tank is provided with a connecting ring, which is detachably connected to the mixing tank via a bolt. The premixing barrel passes through the connecting ring and is rotatably connected to the inner wall of the connecting ring via a bearing.

4. The auxiliary feeding device for preparing a sustained-controlled release dry suspension according to claim 2, characterized in that: The lower end of the column is fixedly connected to the mixing tank, and the upper end of the column is detachably connected to the cover plate through bolt 2.

5. The auxiliary feeding device for preparing a sustained-controlled release dry suspension according to claim 1, characterized in that: The bottom of the premixing barrel is arc-shaped.

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