A device for making an accurate concentration of a medicament

Abstract

The utility model belongs to the technical field of pharmacy preparation, specifically relates to a kind of preparation accurate concentration pharmaceutical device, including dry powder storage box, dry powder storage box bottom is connected with two-way screw feeding mechanism, two-way screw feeding mechanism bottom is connected with pharmaceutical box, two-way screw feeding mechanism bottom both ends are equipped with discharge port, two discharge ports are all connected with weighing mechanism;Pharmaceutical box is connected with baffle in, baffle divides into two pharmaceutical warehouses in pharmaceutical box, and water supply control system is installed in the lateral wall of pharmaceutical box, and two discharge ports are equipped in the lateral wall bottom of pharmaceutical box and are matched with two pharmaceutical warehouses, and two stirring mechanisms are installed in the top of pharmaceutical box.The utility model can accurately obtain the weight of dry powder material, so that the concentration of prepared pharmaceutical is more accurate;And two pharmaceutical warehouses, two water supply branch pipes and two-way screw feeding structure are arranged, so that continuous pharmaceutical process can be realized, and there is no need to wait during stirring and dissolving process, a large amount of preparation time is saved.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical preparation technology, specifically relating to a device for producing pharmaceuticals of accurate concentration. Background Technology

[0002] Various reagents are used in scientific research, chemical synthesis, and industrial production. The concentration of the reagent directly affects the reaction rate, the purity of the product, and the yield. Accurately preparing reagent concentrations ensures the precision of the experimental or production process, avoids the accumulation of errors, and improves product quality and production efficiency. Reagent preparation equipment is required in the preparation process.

[0003] Existing pharmaceutical preparation devices integrate key components such as a pharmaceutical preparation tank, a dry powder storage tank, a screw feeder, a stirring mechanism, and a water supply control system. The pharmaceutical preparation tank is typically equipped with partitions to create a two- or three-chamber structure, with a gap between the top of the partition and the inner wall of the pharmaceutical preparation tank. The first chamber is for mixing solid pharmaceuticals and water, while the second or third chamber is for maturation and storage. Dry powder materials and water are mixed and prepared in one chamber, and then overflow through the top of the partition into the next chamber. In this type of pharmaceutical preparation device, the amount of pharmaceuticals and water used cannot be accurately measured during continuous preparation, ultimately resulting in inaccurate concentrations of the prepared pharmaceuticals. Utility Model Content

[0004] The purpose of this invention is to provide a device for producing pharmaceuticals of accurate concentrations, so as to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0006] A pharmaceutical preparation device includes a pharmaceutical preparation box and a dry powder storage box. The bottom of the dry powder storage box is connected to a bidirectional spiral feeding mechanism, and the bottom of the bidirectional spiral feeding mechanism is connected to the pharmaceutical preparation box. The top of the bidirectional spiral feeding mechanism has a feed inlet connected to the dry powder storage box, and both ends of the bottom of the bidirectional spiral feeding mechanism have discharge outlets. The pharmaceutical preparation box contains two pharmaceutical compartments, separated by a partition. One discharge outlet connects to one pharmaceutical compartment, and the other discharge outlet connects to the other pharmaceutical compartment. The pharmaceutical preparation box is equipped with a water supply system connected to both pharmaceutical compartments. Each pharmaceutical compartment has a pharmaceutical outlet. Two stirring mechanisms are installed on the top of the pharmaceutical preparation box.

[0007] As a further improvement, both discharge ports are connected to a weighing mechanism, which is connected to the pharmaceutical storage compartment. The weighing mechanism includes a housing, which is fixedly connected to the discharge port and the pharmaceutical storage compartment. A hopper is installed in the upper part of the housing, corresponding to the discharge port. An outer discharge cylinder is fixedly connected to the bottom of the hopper. The top and bottom of the outer discharge cylinder are provided with corresponding elongated through holes. A rotating shaft is rotatably connected to the housing, and an inner discharge cylinder is fixedly connected to the rotating shaft. The inner discharge cylinder is rotatably sleeved with the outer discharge cylinder, and the inner discharge cylinder is provided with two corresponding through holes. A mounting plate corresponding to the weighing shaft is installed on the lower outer wall of the housing. A weighing ring is installed on the mounting plate, and a weighing sensor is provided inside the weighing ring. A weighing rod is rotatably connected to the weighing ring, and a weighing block is installed on the weighing rod. The weighing block is located below the outer discharge cylinder and has symmetrically arranged grooves. A driving mechanism is connected to the weighing rod, and a transmission mechanism is installed between the weighing rod and the rotating shaft.

[0008] As a further improvement, the driving mechanism includes a weighing motor, which is fixedly mounted on a mounting plate. A first gear is mounted on the output end of the weighing motor, and a second gear is mounted on one end of the weighing rod. The first gear and the second gear are meshed together.

[0009] As a further improvement, the transmission mechanism includes a first sprocket and a second sprocket. The first sprocket is fixedly connected to the rotating shaft and is located outside the housing. The second sprocket is fixedly connected to the weighing rod and is also located outside the housing. The first sprocket and the second sprocket are connected by a chain.

[0010] As a further improvement, the bidirectional spiral feeding mechanism includes a feeding bin, the top of which is provided with a feed inlet fixedly connected to a dry powder storage tank, and the top of which is provided with a discharge outlet fixedly connected to a housing; a feeding motor is installed at one end of the feeding bin, and a drive shaft is installed at the output end of the feeding motor, the drive shaft passing through the feeding bin; a spiral blade is fixedly installed on the feeding bin, and the spiral blade is slidably connected to the inner wall of the feeding bin.

[0011] As a further improvement, each of the two stirring mechanisms includes a stirring motor, the two stirring motors correspond to two pharmaceutical chambers respectively, a transmission rod is installed at the output end of the stirring motor, and a stirring rod is installed on the transmission rod.

[0012] As a further improvement, the water supply system includes a water supply pipe, which is fixedly connected to the medicine box. The water supply pipe is fixedly connected to two water supply branches, which are respectively fixedly connected to the medicine box. The two water supply branches are respectively connected to two medicine compartments. A flow meter and a pressure gauge are connected to the water supply pipe.

[0013] As a further improvement, several dosing pumps are installed on the side wall of the pharmaceutical container, and the several dosing pumps are respectively connected to the two pharmaceutical compartments.

[0014] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows:

[0015] The device for preparing accurate concentrations of medicines provided by this utility model can obtain the weight of dry powder materials more accurately by setting a weighing mechanism at the bottom of the bidirectional spiral feeding structure, and is equipped with a water supply system so that the weight of dry powder materials and water can be precisely controlled, making the concentration of the prepared medicine more accurate.

[0016] Furthermore, it is equipped with two pharmaceutical chambers, two water supply pipes, and a bidirectional spiral feeding structure, which enables a continuous pharmaceutical manufacturing process without waiting during the stirring and dissolving process, thus saving a significant amount of preparation time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is another overall structural schematic diagram of this utility model;

[0019] Figure 3 This is a schematic diagram of the weighing mechanism structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the weighing mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the inner feed cylinder structure;

[0022] Figure 6 This is a schematic diagram of the inner and outer feed cylinder structure.

[0023] The components include: 1. Dry powder storage tank; 2. Feeding bin; 3. Feeding motor; 4. Medicine box; 5. Water supply system; 6. Water supply pipe; 7. Water supply pipe; 8. Drive mechanism; 9. Weighing mechanism; 10. Transmission mechanism; 11. Bidirectional screw feeding mechanism; 12. Discharge hopper; 13. Shell; 14. Second sprocket; 15. Second gear; 16. Weighing motor; 17. First gear; 18. First sprocket; 19. Outer discharge cylinder; 20. Weighing block; 21. Weighing ring; 22. Mounting plate; 23. Rotating shaft; 24. Weighing motor; 25. Inner discharge cylinder; 26. First sprocket; 27. Outer discharge cylinder; 28. Dosing pump; 29. ​​Stirring motor; 30. Stirring mechanism. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments and accompanying drawings. The accompanying drawings are for illustrative purposes only, representing schematic diagrams only, not actual physical objects, and should not be construed as limiting the scope of this application. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0025] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if any terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0026] An apparatus for producing accurate concentrations of pharmaceuticals includes a pharmaceutical preparation box 4 and a dry powder storage box 1. The dry powder storage box 1 is characterized by having a bidirectional spiral feeding mechanism 11 connected to its bottom, and the pharmaceutical preparation box 4 connected to the bottom of the bidirectional spiral feeding mechanism 11. The dry powder storage box 1 is used to store dry powder materials, and its bottom is equipped with a mechanism for controlling the material feeding speed. The dry powder materials enter the bidirectional spiral feeding mechanism 11 from the dry powder storage box 1 and are conveyed into the pharmaceutical preparation box 4 under the action of the bidirectional spiral feeding mechanism 11.

[0027] The bidirectional spiral feeding mechanism 11 has a feed inlet at the top, which is connected to the dry powder storage tank 1. Both ends of the bottom of the bidirectional spiral feeding mechanism 11 have discharge outlets. The bidirectional spiral feeding mechanism 11 can convey materials in one direction independently, and when it is not necessary to continue conveying materials on one side, it can convey materials to the other side where materials need to be conveyed.

[0028] The pharmaceutical box 4 is provided with two pharmaceutical compartments, and a partition is provided between the two pharmaceutical compartments. One of the discharge ports is connected to one pharmaceutical compartment, and the other discharge port is connected to the other pharmaceutical compartment.

[0029] The medicine box 4 is equipped with a water supply system 5, which is connected to two medicine compartments. Each of the two medicine compartments has a medicine outlet, and the water supply system 5 can inject water into the medicine box 4 for medicine preparation.

[0030] In this embodiment, the pharmaceutical box 4 is divided into two pharmaceutical compartments by a partition, which can be used to prepare pharmaceuticals separately. Dry powder pharmaceuticals and water can be added separately by a bidirectional screw feeding mechanism 11 and a water supply system 5. When pharmaceutical preparation is needed in one pharmaceutical compartment, the bidirectional screw feeding mechanism 11 and the water supply system 5 are controlled to add materials. After the materials are added, a stirring preparation process is carried out. During the stirring preparation process in one pharmaceutical compartment, materials can be added to the other pharmaceutical compartment and stirred. After the preparation in the pharmaceutical compartment that is stirring first is completed and discharged, the stirring preparation process in the pharmaceutical compartment that is stirring later begins. At this time, materials are added to the pharmaceutical compartment that has already been prepared. This not only meets the needs of continuous production but also ensures the accuracy of the prepared pharmaceutical concentration.

[0031] Both discharge ports are connected to a weighing mechanism 9, which is connected to the pharmaceutical storage chamber. The weighing mechanism 9 can weigh the added dry powder medicine to make the concentration of the prepared medicine more accurate.

[0032] The weighing mechanism 9 includes a housing 13, which is fixedly connected to the discharge port and the medicine box 4. A feeding hopper 12 is installed in the upper part of the housing 13, which corresponds to the discharge port. An outer feeding cylinder 19 is fixedly connected to the bottom of the feeding hopper 12. The top and bottom of the outer feeding cylinder 19 are provided with corresponding elongated through holes.

[0033] The housing 13 is rotatably connected to a rotating shaft 23, and an inner feed cylinder 25 is fixedly connected to the rotating shaft 23. The inner feed cylinder 25 is rotatably sleeved with the outer feed cylinder 19, and the inner feed cylinder 25 is provided with two corresponding through holes.

[0034] The lower outer wall of the housing 13 is equipped with a mounting plate 22 corresponding to the weighing shaft. A weighing ring 21 is mounted on the mounting plate 22. A weighing sensor is provided inside the weighing ring 21. A weighing rod is rotatably connected to the weighing ring 21. A weighing block 20 is mounted on the weighing rod. The weighing block 20 is located below the outer feed cylinder 19. The weighing block 20 is provided with symmetrically arranged grooves.

[0035] The weighing rod is connected to a drive mechanism 8, and a transmission mechanism 10 is installed between the weighing rod and the rotating shaft 23.

[0036] In this embodiment, the material falls from the outlet of the bidirectional spiral feeding mechanism 11 onto the hopper 12. The material continues to fall from the hopper 12. When the holes of the outer feed cylinder 19 and the inner feed cylinder 25 are aligned vertically, the material can pass through the outer feed cylinder 19 and the inner feed cylinder 25 and continue to fall. At this time, the groove on the weighing block 20 is aligned with the feeding position, and the material will naturally fall into the groove on the weighing block 20. Under the action of the gravity sensor, the weight of the material is measured. The gravity sensor is electrically connected to the controller. When the weight of the material reaches the set value, the drive mechanism 8 will drive the weighing rod to rotate. The rotation angle needs to be controlled so that the holes on the outer feed cylinder 19 and the inner feed cylinder 25 do not overlap, so that the material cannot continue to be fed, and the material can completely slide out of the groove of the weighing block 20.

[0037] The driven mechanism 8 includes a weighing motor 16, which is fixedly mounted on the mounting plate 22. A first gear 17 is mounted on the output end of the weighing motor 16, and a second gear 15 is mounted on one end of the weighing rod. The first gear 17 and the second gear 15 are meshed and connected. The drive motor can drive the weighing rod to rotate through the cooperation of the first gear 17 and the second gear 15.

[0038] The transmission mechanism 10 includes a first sprocket 18 and a second sprocket 14. The first sprocket 18 is fixedly connected to the rotating shaft 23 and is located outside the housing 13. The second sprocket 14 is fixedly connected to the weighing rod and is located outside the housing 13. The first sprocket 18 and the second sprocket 14 are connected by a chain. The transmission mechanism 10 can drive the rotating shaft 23 to rotate synchronously when the weighing rod rotates through the cooperation of the first sprocket 18, the second sprocket 14 and the chain.

[0039] The bidirectional spiral feeding mechanism 11 includes a feeding bin 2, the top of which is provided with a feeding port, which is fixedly connected to the dry powder storage tank 1, and the top of which is provided with a discharging port, which is fixedly connected to the shell 13.

[0040] A feeding motor 3 is installed at one end of the feeding bin 2. A drive shaft is installed at the output end of the feeding motor 3. The drive shaft passes through the feeding bin 2. A spiral blade is fixedly installed on the feeding bin 2. The spiral blade is slidably connected to the inner wall of the feeding bin 2.

[0041] Two stirring mechanisms 30 are installed on the top of the pharmaceutical container 4. Each stirring mechanism 30 includes a stirring motor 29. The two stirring motors 29 correspond to the two pharmaceutical containers. A transmission rod is installed at the output end of the stirring motor 29, and a stirring rod is installed on the transmission rod. The stirring motor 29 can drive the stirring rod to rotate through the transmission rod. The rotation of the stirring rod can stir the materials and water in the pharmaceutical container, so that the water and materials can be mixed more quickly and the pharmaceutical process can be accelerated.

[0042] The water supply system 5 includes a water supply pipe 6, which is fixedly connected to the medicine box 4. Specifically, the water supply pipe 6 can be fixedly connected by a retaining ring, which is fixedly connected to the outer wall of the medicine box 4. The water supply pipe 6 is fixedly connected to two water supply branches 7, each equipped with a solenoid valve. The two water supply branches 7 are fixedly connected to the medicine box 4 and connected to two medicine compartments. The water supply pipe 6 is connected to a flow meter and a pressure gauge, and a main valve is installed on the water supply pipe. The solenoid valve on the water supply branch 7 and the main valve can be controlled according to the flow meter measurement, so that the amount of water injected into the medicine compartment is constant, thereby ensuring the concentration of the prepared medicine.

[0043] Several dosing pumps 28 are installed on the side wall of the pharmaceutical container 4. The dosing pumps 28 are connected to the two pharmaceutical compartments respectively. The dosing pumps 28 can add the required solution to the pharmaceutical compartment.

[0044] In summary, in actual use, the material is fed into the dry powder storage tank 1, and then enters the feeding bin 2 of the bidirectional screw feeder 11 through the inlet. The bidirectional screw feeder 11 feeds the material into the pharmaceutical bin in one direction. During the feeding process, the water supply system 5 simultaneously injects water into the same pharmaceutical bin. After the feeding and water injection are completed, the stirring mechanism 30 is started to stir and prepare the pharmaceutical. When the pharmaceutical preparation is completed, the valve on the outlet is opened to discharge the pharmaceutical and send it to the next stage. During the stirring and pharmaceutical preparation process, the feeding motor 3 rotates in the opposite direction to feed the material into another pharmaceutical bin, while the water supply system 5 simultaneously injects water into the same pharmaceutical bin. When the pharmaceutical bin where the material and water were added first has completed the preparation of the pharmaceutical, the screw feeder stops operating. After the pharmaceutical bin where the pharmaceutical preparation was previously prepared is drained, the screw feeder and water supply system 5 are added and injected again, and this process is repeated.

[0045] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An apparatus for producing accurately concentrated pharmaceutical solutions, comprising a pharmaceutical preparation box (4) and a dry powder storage box (1), characterized in that, The bottom of the dry powder storage box (1) is connected to a bidirectional spiral feeding mechanism (11), and the bottom of the bidirectional spiral feeding mechanism (11) is connected to a medicine box (4). The bidirectional spiral feeding mechanism (11) has a feed inlet at the top, which is connected to the dry powder storage tank (1). The bidirectional spiral feeding mechanism (11) has a discharge outlet at both ends at the bottom. The pharmaceutical box (4) is provided with two pharmaceutical compartments, and a partition is provided between the two pharmaceutical compartments. One of the discharge ports is connected to one pharmaceutical compartment, and the other discharge port is connected to the other pharmaceutical compartment. The pharmaceutical box (4) is equipped with a water supply system (5), which is connected to the two pharmaceutical compartments respectively. The two pharmaceutical compartments are respectively provided with drug outlets. The top of the pharmaceutical box (4) is equipped with two stirring mechanisms (30).

2. The apparatus for producing accurately concentrated pharmaceutical solutions according to claim 1, characterized in that, Both of the discharge ports are connected to a weighing mechanism (9), which is connected to the pharmaceutical storage chamber; The weighing mechanism (9) includes a housing (13), which is fixedly connected to the discharge port and the pharmaceutical box (4). A feeding hopper (12) is installed in the upper part of the housing (13), which corresponds to the discharge port. An outer feeding cylinder (19) is fixedly connected to the bottom of the feeding hopper (12). The top and bottom of the outer feeding cylinder (19) are provided with corresponding elongated through holes. The housing (13) is rotatably connected to a rotating shaft (23), and an inner feed cylinder (25) is fixedly connected to the rotating shaft (23). The inner feed cylinder (25) is rotatably sleeved with the outer feed cylinder (19), and the inner feed cylinder (25) is provided with two corresponding through holes. The lower outer wall of the housing (13) is equipped with a mounting plate (22) corresponding to the weighing shaft. A weighing ring (21) is mounted on the mounting plate (22). A weighing sensor is provided inside the weighing ring (21). A weighing rod is rotatably connected to the weighing ring (21). A weighing block (20) is mounted on the weighing rod. The weighing block (20) is located below the outer feed cylinder (19). The weighing block (20) is provided with symmetrically arranged grooves. The weighing rod is connected to a drive mechanism (8), and a transmission mechanism (10) is installed between the weighing rod and the rotating shaft (23).

3. The apparatus for producing accurately concentrated pharmaceutical solutions according to claim 2, characterized in that, The driven mechanism (8) includes a weighing motor (16), which is fixedly mounted on the mounting plate (22). A first gear (17) is installed at the output end of the weighing motor (16), and a second gear (15) is installed at one end of the weighing rod. The first gear (17) and the second gear (15) are meshed together.

4. The apparatus for producing accurately concentrated pharmaceutical solutions according to claim 2, characterized in that, The transmission mechanism (10) includes a first sprocket (18) and a second sprocket (14). The first sprocket (18) is fixedly connected to the rotating shaft (23) and is located outside the housing (13). The second sprocket (14) is fixedly connected to the weighing rod and is located outside the housing (13). The first sprocket (18) and the second sprocket (14) are connected by a chain.

5. The apparatus for producing accurately concentrated pharmaceutical solutions according to claim 1, characterized in that, The bidirectional spiral feeding mechanism (11) includes a feeding bin (2), the top of the feeding bin (2) is provided with a feed inlet, the feed inlet is fixedly connected to the dry powder storage tank (1), the top of the feeding bin (2) is provided with a discharge outlet, the discharge outlet is fixedly connected to the shell (13); A feeding motor (3) is installed at one end of the feeding bin (2), and a transmission shaft is installed at the output end of the feeding motor (3). The transmission shaft passes through the feeding bin (2), and a spiral blade is fixedly installed on the feeding bin (2). The spiral blade is slidably connected to the inner wall of the feeding bin (2).

6. The apparatus for producing accurately concentrated pharmaceutical solutions according to claim 1, characterized in that, The two stirring mechanisms (30) each include a stirring motor (29), and the two stirring motors (29) correspond to two pharmaceutical chambers respectively. A transmission rod is installed at the output end of the stirring motor (29), and a stirring rod is installed on the transmission rod.

7. The apparatus for producing accurately concentrated pharmaceutical solutions according to claim 1, characterized in that, The water supply system includes a water supply pipe (6), which is fixedly connected to the medicine box (4). The water supply pipe (6) is fixedly connected to two water supply pipes (7), which are respectively fixedly connected to the medicine box (4). The two water supply pipes (7) are respectively connected to the two medicine compartments. A flow meter and a pressure gauge are connected to the water supply pipe (6).

8. The apparatus for producing accurately concentrated pharmaceutical solutions according to claim 1, characterized in that, The side wall of the pharmaceutical container (4) is equipped with several dosing pumps (28), which are respectively connected to the two pharmaceutical compartments.

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