Medicine screening and separating device
By using a servo motor to drive the transmission rod and rotate the stirring blades, combined with the sieve holes and feeding mechanism, the problem of unstable vibration in the device is solved, achieving efficient sieving and stable transmission of drugs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-17
AI Technical Summary
In existing drug screening and separation devices, the vibration motor is fixedly installed at the bottom of the sieve plate, causing the vibration to be transmitted to the limiting sleeve and the separation box, resulting in the overall instability of the device.
A servo motor drives the transmission rod to rotate the stirring blades, which, combined with the sieve holes and feeding mechanism, achieves effective sieving and stable transmission of drugs.
It improves screening efficiency, ensures the device remains stable during vibration, and facilitates drug propulsion and separation.
Smart Images

Figure CN223996568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drug separation technology, specifically a drug screening and separation device. Background Technology
[0002] Before drug manufacturing begins, the necessary raw materials and auxiliary substances need to be prepared. Raw materials typically include active ingredients, fillers, stabilizers, solvents, etc. These raw materials must meet the quality standards specified in the pharmacopoeia. According to the drug formulation requirements, the ratio and dosage of each raw material are determined. The formulation design needs to consider factors such as drug stability, solubility, and bioavailability, and reasonable ratio calculations are performed. Various raw materials are mixed according to the formulation requirements to ensure uniform distribution of drug components. The mixed drug may need to undergo granulation to turn powdered raw materials into granules for easier subsequent processing and packaging. The mixed drug is then compressed and shaped using a tableting machine or capsule machine to produce a solid dosage form suitable for oral administration or other routes of administration. The compression and shaping process requires control of factors such as pressure, temperature, and humidity to ensure the quality and consistency of tablets or capsules and to control drug packaging and quality. In the drug research and development and manufacturing process, drug screening and separation is one of the key steps, used to screen and separate impurities or drugs that do not meet size requirements.
[0003] For example, authorization announcement number CN220111587U provides a drug screening and separation device, relating to the field of drug separation technology. It includes a separation chamber with a screening chamber on its top surface, a sieve plate installed on the inner wall of the screening chamber, and sieve holes arrayed on the top surface of the sieve plate. An airflow box is bolted to the back opening of the separation chamber. A feeding chamber and a separation channel are provided inside the separation chamber. This combination of airflow separation and vibrating filter plate screening structures allows for the simultaneous use of airflow and vibration to accelerate the separation speed of drug particles. Airflow separation separates particles through the action of airflow, while vibrating filter plate screening filters particles downwards through vibration. The combination of these two methods accelerates the separation process and improves screening efficiency. Simultaneously, airflow screening can screen drugs by weight, and the sieve plate can screen drugs by shape and size, improving the drug screening and separation effect.
[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found:
[0005] Although this drug screening and separation device can screen drugs by weight through airflow screening and by shape and size through the sieve plate, in use, because the vibrating motor is fixedly installed at the bottom of the sieve plate, and the sieve plate is installed inside the screening box, and the limiting sleeve is located on the outside of the screening box, which can limit its movement in all directions, when the vibrating motor drives the sieve plate and screening box to vibrate, the screening box can transmit the vibration to the limiting sleeve and the separation box, which will cause the device to be unstable during operation. Utility Model Content
[0006] To address the problems mentioned in the background art, the present invention aims to provide a drug screening and separation device that has the advantage of auxiliary screening. It solves the problem that although the vibrating motor is fixedly installed at the bottom of the sieve plate, and the sieve plate is installed inside the screening box, and the limiting sleeve is located on the outside of the screening box, which can limit its movement in all directions, when the vibrating motor drives the sieve plate and the screening box to vibrate, the screening box can transmit the vibration to the limiting sleeve and the separation box, which will cause the device to be unstable during operation.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a drug screening and separation device, comprising a screening cylinder, a feeding cylinder, and a support leg. The bottom of the screening cylinder is fixedly connected to the top of the feeding cylinder, and the support leg is fixedly installed at the bottom of the feeding cylinder. The top of the feeding cylinder has a sieve hole, which is a plurality of holes arranged in a ring at equal intervals. Three stirring blades are movably connected to the top of the feeding cylinder. A pushing mechanism is fixedly installed on the top of the inner wall of the feeding cylinder. Feeding mechanisms are provided on the left and right sides of the top of the inner wall of the screening cylinder.
[0008] In a preferred embodiment of this invention, the driving mechanism includes a servo motor, a transmission rod is movably connected to the top of the inner wall of the screening cylinder via a bearing, the other end of the transmission rod is fixedly connected to the output end of the servo motor, a fixing ring is fixedly connected to the surface of the transmission rod, and the stirring blade is fixedly mounted on the surface of the fixing ring.
[0009] In a preferred embodiment of this invention, the feeding mechanism includes a feed inlet, a feed hopper is fixedly connected to the top of the screening cylinder, and two inclined plates are fixedly connected to the top of the inner wall of the screening cylinder.
[0010] As a preferred embodiment of this utility model, a protective shell is provided on the outside of the servo motor, the top of the protective shell is fixedly connected to the top of the inner wall of the feeding cylinder, and a feeding hopper is fixedly connected to the inner wall of the feeding cylinder.
[0011] As a preferred embodiment of this utility model, a medicine dispensing port is provided on the rear side of the surface of the screening cylinder, and a flip door is movably connected to the left side of the inner wall of the medicine dispensing port via a hinge.
[0012] As a preferred embodiment of this utility model, a triangular plate is fixedly connected to the top of the screening cylinder, the triangular plate is located inside the feed hopper, a control panel is fixedly installed on the right side of the top of the screening cylinder, and the servo motor is electrically connected to the control panel through wires.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model, by setting sieve holes and stirring blades, allows medicines with a volume smaller than the sieve hole volume to fall into the inside of the feeding cylinder when the stirring blades rotate. This solves the problem that although the vibrating motor is fixedly installed at the bottom of the sieve plate and the sieve plate is installed inside the screening box, and the limiting sleeve is located on the outside of the screening box, which can limit its forward, backward, left and right movements, the screening box can transmit the vibration to the limiting sleeve and the separation box when the vibrating motor works and drives the sieve plate and screening box to vibrate, which will cause the device to be unstable when it is working. This achieves the effect of auxiliary screening.
[0015] 2. This utility model, by setting up a pushing mechanism, enables the output end of the servo motor to drive the transmission rod to rotate by starting the servo motor. The rotation of the transmission rod can drive the fixed ring and the stirring blade to rotate, thereby pushing the drug inside the screening cylinder.
[0016] 3. This utility model, by setting up a feeding mechanism, uses a feeding hopper to facilitate users to put the medicine into the inside of the screening cylinder through the feeding port. The inclined plate can separate the falling medicine and make it fall into the two sides of the screening cylinder, thereby improving the screening efficiency. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a three-dimensional exploded cross-sectional view of the present invention;
[0019] Figure 3 This is a three-dimensional structural diagram of the medicine dispensing port of this utility model.
[0020] In the diagram: 1. Screening cylinder; 2. Feeding cylinder; 3. Support leg; 4. Screen hole; 5. Stirring blade; 6. Pushing mechanism; 61. Servo motor; 62. Transmission rod; 63. Fixing ring; 7. Feeding mechanism; 71. Feed inlet; 72. Feed hopper; 73. Inclined plate; 8. Protective shell; 9. Feeding hopper; 10. Medicine dispensing port; 11. Flip door; 12. Triangular plate; 13. Control panel. Detailed Implementation
[0021] 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.
[0022] like Figures 1 to 3As shown, the present invention provides a drug screening and separation device, including a screening cylinder 1, a feeding cylinder 2, and a support leg 3. The bottom of the screening cylinder 1 is fixedly connected to the top of the feeding cylinder 2, and the support leg 3 is fixedly installed at the bottom of the feeding cylinder 2. The top of the feeding cylinder 2 is provided with a sieve hole 4, which is provided in a plurality of holes and is distributed in a ring at equal intervals. Three stirring blades 5 are movably connected to the top of the feeding cylinder 2. A pushing mechanism 6 is fixedly installed on the top of the inner wall of the feeding cylinder 2. Feeding mechanisms 7 are provided on the left and right sides of the top of the inner wall of the screening cylinder 1.
[0023] refer to Figure 2 The driving mechanism 6 includes a servo motor 61. The top of the inner wall of the screening cylinder 1 is movably connected to a transmission rod 62 via a bearing. The other end of the transmission rod 62 is fixedly connected to the output end of the servo motor 61. A fixing ring 63 is fixedly connected to the surface of the transmission rod 62. The stirring blade 5 is fixedly installed on the surface of the fixing ring 63.
[0024] As a technical optimization of this utility model, by setting up a pushing mechanism 6, the output end of the servo motor 61 can drive the transmission rod 62 to rotate by starting the servo motor 61. The rotation of the transmission rod 62 can drive the fixed ring 63 and the stirring blade 5 to rotate, thereby pushing the drug inside the screening cylinder 1.
[0025] refer to Figure 2 The feeding mechanism 7 includes a feed inlet 71, a feed hopper 72 fixedly connected to the top of the screening cylinder 1, and two inclined plates 73 fixedly connected to the top of the inner wall of the screening cylinder 1.
[0026] As a technical optimization of this utility model, by setting up a feeding mechanism 7, the feeding hopper 72 facilitates the user to put the medicine into the screening cylinder 1 through the feeding port 71, and the inclined plate 73 can separate the falling medicine and make it fall into the two sides of the screening cylinder 1, thereby improving the screening efficiency.
[0027] refer to Figure 2 A protective shell 8 is provided on the outside of the servo motor 61. The top of the protective shell 8 is fixedly connected to the top of the inner wall of the feeding cylinder 2. A feeding hopper 9 is fixedly connected to the inner wall of the feeding cylinder 2.
[0028] As a technical optimization of this utility model, by setting up a protective shell 8 and a feeding hopper 9, the protective shell 8 can protect the servo motor 61 and prevent the falling medicine from contacting the servo motor 61, while the feeding hopper 9 can transport the medicine falling into the feeding cylinder 2 to the outside.
[0029] refer to Figure 3 A medicine dispensing port 10 is provided on the rear side of the surface of the screening cylinder 1, and a flip door 11 is movably connected to the left side of the inner wall of the medicine dispensing port 10 via a hinge.
[0030] As a technical optimization of this utility model, by setting up a medicine dispensing port 10 and a flip door 11, the medicine dispensing door makes it easy for users to take out the larger volume of medicine after screening, and the flip door 11 can shield and protect the medicine dispensing port 10.
[0031] refer to Figure 2 and Figure 3 A triangular plate 12 is fixedly connected to the top of the screening cylinder 1. The triangular plate 12 is located inside the feed hopper 72. A control panel 13 is fixedly installed on the right side of the top of the screening cylinder 1. The servo motor 61 is electrically connected to the control panel 13 through wires.
[0032] As a technical optimization of this utility model, by setting up a triangular plate 12 and a control panel 13, the triangular plate 12 can make the put-in medicine roll naturally into the inside of the two feed ports 71, and the control panel 13 can facilitate the user to operate the servo motor 61.
[0033] The working principle and usage process of this utility model are as follows: When it is necessary to screen the medicine, the medicine is first put into the screening cylinder 1 through the feed hopper 72 and feed port 71. Then, the servo motor 61 is started through the control panel 13, so that the output end of the servo motor 61 drives the transmission rod 62 and the fixed ring 63 to rotate. The rotation of the fixed ring 63 can drive the stirring blade 5 to rotate. The rotation of the stirring blade 5 can push the medicine inside the screening cylinder 1. At this time, the medicine with a volume smaller than the volume of the sieve hole 4 can fall into the inside of the feeding cylinder 2 and can fall to the outside through the feeding hopper 9, which is convenient for the user to collect. The triangular plate 12 and the inclined plate 73 can make the medicine roll evenly to the two sides of the screening cylinder 1, thereby further improving the screening efficiency. The medicine retrieval door makes it easy for the user to take out the larger volume medicine after screening.
[0034] In summary, this drug screening and separation device, by setting sieve holes 4 and stirring blades 5, allows drugs with a volume smaller than the volume of sieve holes 4 to fall into the inside of the feeding cylinder 2 when the stirring blades 5 rotate. This solves the problem that although the vibrating motor is fixedly installed at the bottom of the sieve plate, and the sieve plate is installed inside the screening box, and the limiting sleeve is located on the outside of the screening box, which can limit its movement in all directions, when the vibrating motor drives the sieve plate and screening box to vibrate, the screening box can transmit the vibration to the limiting sleeve and the separation box, thus causing the device to be unstable during operation.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A drug screening separation device comprising a screening drum (1), a feed drum (2) and support legs (3), characterised in that: The bottom of the screening cylinder (1) is fixedly connected with the top of the discharging cylinder (2), the supporting leg (3) is fixedly installed at the bottom of the discharging cylinder (2), the top of the discharging cylinder (2) is provided with sieve holes (4), the sieve holes (4) are provided with a plurality of annular equidistant distribution, the top of the discharging cylinder (2) is movably connected with three stirring blades (5), the top of the inner wall of the discharging cylinder (2) is fixedly installed with a pushing mechanism (6), and the left side and the right side of the top of the inner wall of the screening cylinder (1) are provided with discharging mechanisms (7).
2. A device for screening and isolating drugs according to claim 1, characterized in that: The pushing mechanism (6) comprises a servo motor (61), the top of the inner wall of the screening cylinder (1) is movably connected with a transmission rod (62) through a bearing, the other end of the transmission rod (62) is fixedly connected with the output end of the servo motor (61), the surface of the transmission rod (62) is fixedly connected with a fixed ring (63), and the stirring blade (5) is fixedly installed on the surface of the fixed ring (63).
3. A device for screening and isolating drugs according to claim 2, characterized in that: The discharging mechanism (7) comprises a feeding port (71), the top of the screening cylinder (1) is fixedly connected with a feeding hopper (72), and the top of the inner wall of the screening cylinder (1) is fixedly connected with two inclined plates (73).
4. A device for screening and isolating drugs according to claim 2, characterized in that: The outer side of the servo motor (61) is provided with a protective shell (8), the top of the protective shell (8) is fixedly connected with the top of the inner wall of the discharging cylinder (2), and the inner wall of the discharging cylinder (2) is fixedly connected with a discharging hopper (9).
5. The apparatus of claim 1, wherein: The rear side of the surface of the screening cylinder (1) is provided with a medicine taking port (10), and the left side of the inner wall of the medicine taking port (10) is movably connected with a turnover door (11) through a hinge.
6. A device for screening and isolating drugs according to claim 3, characterized in that: The top of the screening cylinder (1) is fixedly connected with a triangular plate (12), the triangular plate (12) is located on the inner side of the feeding hopper (72), the right side of the top of the screening cylinder (1) is fixedly installed with a control panel (13), and the servo motor (61) is electrically connected with the control panel (13) through wires.
Citation Information
Patent Citations
Medicine screening and separating device
CN220111587U