Medicine grinding and metering device for medicine detection

Abstract

The utility model relates to the technical field of medicine detection, and discloses a medicine grinding and metering device for medicine detection, which comprises a support frame, a grinding cylinder, a discharge hopper, a lifting component and a grinding head, a driving assembly and a weighing base assembly are installed on the supporting frame, and a collecting hopper is installed at the bottom of the weighing base assembly; the grinding cylinder is installed on the supporting frame, the top of the grinding cylinder is detachably connected with an end cover, and a plurality of discharging through holes are formed in the bottom of the side wall of the grinding cylinder; the discharging hopper is fixedly installed on the outer wall of the grinding cylinder and covers the discharging through holes, an inserting groove is formed in the top of the discharging hopper, and the bottom of the discharging hopper faces the collecting hopper; and the lifting assembly is installed on the outer wall of the grinding cylinder, a material blocking valve plate is installed at the lifting end of the lifting assembly, and the material blocking valve plate extends into the discharging hopper along the inserting groove. According to the utility model, the integrated operation of medicine grinding, particle size screening, quantitative discharging and medicine weighing is realized, and the detection efficiency and precision are obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical testing technology, and in particular to a pharmaceutical grinding and measuring device for pharmaceutical testing. Background Technology

[0002] In the field of pharmaceutical testing, the particle size distribution and uniformity of drugs are among the key factors affecting the accuracy of test results. For example, in drug content determination, dissolution testing, or impurity analysis, drugs need to be ground to a specific particle size range to ensure the representativeness of the test samples and the repeatability of experimental results.

[0003] However, traditional pharmaceutical grinding equipment typically requires the drug to be pulverized using a separate grinder before being transferred to a balance or weighing device for measurement. This process is not only time-consuming but also prone to drug loss or contamination. Especially in high-precision testing, operational errors can significantly affect the accuracy of the results. Furthermore, ordinary grinding equipment lacks a particle size screening mechanism, relying on manual experience to adjust grinding time or intensity, resulting in significant particle size variations between different batches of drugs, failing to meet the demands of high-precision testing. In addition, manual screening may introduce impurities or lead to uneven particle size distribution, affecting testing efficiency.

[0004] Therefore, a drug grinding and metering device for drug testing is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a pharmaceutical grinding and measuring device for pharmaceutical testing, which aims to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a pharmaceutical grinding and metering device for pharmaceutical testing, comprising:

[0007] A support frame on which a drive assembly and a weighing base assembly are mounted, and a material collection hopper is mounted at the bottom of the weighing base assembly;

[0008] A grinding cylinder is mounted on the support frame. An end cap is detachably connected to the top of the grinding cylinder, and several discharge through holes are opened at the bottom of the side wall of the grinding cylinder.

[0009] A discharge hopper is fixedly installed on the outer wall of the grinding cylinder. The discharge hopper covers a plurality of discharge through holes. A slot is provided on the top of the discharge hopper, and the bottom of the discharge hopper faces the collection hopper.

[0010] A lifting assembly is installed on the outer wall of the grinding cylinder. A baffle valve plate is installed at the lifting end of the lifting assembly, and the baffle valve plate extends into the discharge hopper along the slot.

[0011] A grinding head is rotatably connected to the inner bottom wall of the grinding cylinder, and the grinding head is drively connected to the output end of the drive assembly.

[0012] According to the present invention, a pharmaceutical grinding and measuring device for pharmaceutical testing is provided, wherein the weighing base assembly includes a base body installed on the side wall of the support frame, a weighing sensor is installed on the top surface of the base body, the bottom of the collecting hopper is detachably connected to the top surface of the base body, the bottom of the collecting hopper is in contact with the weighing sensor, and the top of the collecting hopper is open.

[0013] According to the present invention, a pharmaceutical grinding and measuring device for pharmaceutical testing is provided, wherein the driving component includes a motor base mounted on the side wall of the support frame, a drive motor mounted on the motor base, a first pulley mounted on the output shaft of the drive motor, the grinding head being rotatably connected to the grinding cylinder via a rotating shaft, the bottom of the rotating shaft extending outside the grinding cylinder, and a second pulley mounted on the bottom of the rotating shaft, wherein the first pulley and the second pulley are connected by a synchronous belt drive.

[0014] According to the present invention, a pharmaceutical grinding and measuring device for pharmaceutical testing is provided, wherein the lifting assembly includes a cylinder installed on the outer wall of the grinding cylinder, a connecting plate is installed on the piston end of the cylinder, the top of the baffle valve plate is fixedly connected to the connecting plate, and both the connecting plate and the baffle valve plate are slidably connected to the outer wall of the grinding cylinder.

[0015] According to the present invention, a pharmaceutical grinding and measuring device for pharmaceutical testing is provided, wherein a plurality of first connecting wing plates are installed on the end cap, and a plurality of second connecting wing plates are installed on the outer wall of the grinding cylinder. The plurality of first connecting wing plates and the plurality of second connecting wing plates are arranged in a one-to-one correspondence. The first connecting wing plates and the second connecting wing plates are connected by screws. Nuts are abutted against the top and bottom surfaces of the first connecting wing plates and the top and bottom surfaces of the second connecting wing plates. All four nuts are threadedly connected to the screws.

[0016] According to the present invention, a pharmaceutical grinding and measuring device for pharmaceutical testing is provided, wherein an observation window is installed at the center of the top surface of the end cap.

[0017] According to the present invention, a pharmaceutical grinding and measuring device for pharmaceutical testing is provided, wherein a number of casters are installed at the bottom of the supporting frame.

[0018] The present invention discloses the following technical effects:

[0019] This invention uses a drive assembly to rotate the grinding head, thereby grinding the medicine inside the grinding cylinder. After grinding, the medicine powder that meets the particle size requirements is discharged from the discharge hole into the discharge hopper, ensuring the uniformity of particle size grinding. The ground powder falls into the collection hopper through the discharge hopper, and the weighing base assembly allows for direct weighing of the ground medicine without the need to transfer samples, thus improving detection efficiency. This invention achieves integrated operation of medicine grinding, particle size screening, quantitative discharge, and medicine weighing, significantly improving detection efficiency and accuracy.

[0020] This invention uses a lifting assembly to drive the baffle valve plate to open and close automatically. When the weight of the ground medicine powder in the hopper reaches the preset range, the lifting assembly can drive the baffle valve plate to descend, blocking several discharge holes, thereby achieving quantitative discharge and improving the accuracy of subsequent testing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is the front view of the present invention;

[0023] Figure 2 This is an isometric view of the present invention;

[0024] Figure 3 This is a schematic diagram of the installation of the collecting hopper and the discharging hopper in this utility model;

[0025] Figure 4 This is a schematic diagram of the grinding cylinder in this utility model.

[0026] The components include: 1. Support frame; 2. Collection hopper; 3. Grinding cylinder; 4. End cap; 5. Discharge through hole; 6. Discharge hopper; 7. Slot; 8. Baffle valve plate; 9. Connecting plate; 10. Base body; 11. Weighing sensor; 12. Motor base; 13. Drive motor; 14. Synchronous belt; 15. Cylinder; 16. Screw; 17. Observation window; and 18. Casters. Detailed Implementation

[0027] 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.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figures 1-4 This utility model provides a pharmaceutical grinding and measuring device for pharmaceutical testing, comprising:

[0030] Support frame 1, on which a drive assembly and a weighing base assembly are installed, and a collection hopper 2 is installed at the bottom of the weighing base assembly;

[0031] Grinding cylinder 3 is mounted on support frame 1. The top of grinding cylinder 3 is detachably connected to end cap 4. Several discharge through holes 5 are opened at the bottom of the side wall of grinding cylinder 3.

[0032] The discharge hopper 6 is fixedly installed on the outer wall of the grinding cylinder 3. The discharge hopper 6 covers several discharge through holes 5. The top of the discharge hopper 6 is provided with a slot 7. The bottom of the discharge hopper 6 faces the collection hopper 2.

[0033] The lifting assembly is installed on the outer wall of the grinding cylinder 3. The lifting end of the lifting assembly is equipped with a baffle valve plate 8, which extends into the discharge hopper 6 along the slot 7.

[0034] The grinding head is rotatably connected to the inner bottom wall of the grinding cylinder 3, and the grinding head is connected to the output end of the drive assembly.

[0035] With this configuration, the present invention uses a drive assembly to rotate the grinding head, thereby grinding the medicine inside the grinding cylinder. After grinding, the medicine powder that meets the particle size requirements is discharged from the discharge hole 5 into the discharge hopper 6, ensuring the uniformity of particle size grinding. The ground powder falls into the collection hopper 2 through the discharge hopper 6, and the medicine can be directly weighed after grinding through the weighing base assembly without the need to transfer samples, thus improving detection efficiency. The present invention realizes the integrated operation of medicine grinding, particle size screening, quantitative discharge and medicine weighing, significantly improving detection efficiency and accuracy.

[0036] This utility model uses a lifting component to drive the baffle valve plate 8 to open and close automatically. When the weight of the ground medicine powder in the collection hopper 2 reaches the preset range, the lifting component can drive the baffle valve plate 8 to descend, blocking several discharge holes, thereby achieving quantitative discharge and improving the accuracy of subsequent testing.

[0037] Further optimization of the scheme: the weighing base assembly includes a base body 10 installed on the side wall of the support frame 1, a weighing sensor 11 installed on the top surface of the base body 10, the bottom of the collecting hopper 2 is detachably connected to the top surface of the base body 10, the bottom of the collecting hopper 2 is in contact with the weighing sensor 11, and the top of the collecting hopper 2 is set as an open opening.

[0038] The ground medicine powder falls into the collection hopper 2. The weighing sensor 11 monitors the weight of the medicine in the collection hopper in real time and transmits the data to the PLC controller. When the weight reaches the preset threshold, the PLC controller triggers the lifting component to block the discharge hole 5, thereby achieving quantitative control.

[0039] The further optimized scheme includes a motor base 12 mounted on the side wall of the support frame 1, a drive motor 13 mounted on the motor base 12, a first pulley mounted on the output shaft of the drive motor 13, a grinding head rotatably connected to the grinding cylinder 3 via a rotating shaft, the bottom of the rotating shaft extending out of the grinding cylinder 3, and a second pulley mounted on the bottom of the rotating shaft, the first pulley and the second pulley being connected by a synchronous belt 14.

[0040] The drive motor 13 starts and drives the grinding head to rotate at high speed through the transmission of the first pulley, the synchronous belt 14 and the second pulley, so as to crush the medicine in the grinding cylinder 3.

[0041] Further optimization of the scheme: the lifting assembly includes a cylinder 15 installed on the outer wall of the grinding cylinder 3, a connecting plate 9 installed on the piston end of the cylinder 15, the top of the baffle valve plate 8 being fixedly connected to the connecting plate 9, and both the connecting plate 9 and the baffle valve plate 8 being slidably connected to the outer wall of the grinding cylinder 3.

[0042] In a further optimized design, cylinder 15, drive motor 13, and weighing sensor 11 are all electrically connected to a PLC controller.

[0043] The scheme is further optimized. Several first connecting wing plates are installed on the end cap 4, and several second connecting wing plates are installed on the outer wall of the grinding cylinder 3. Several first connecting wing plates and several second connecting wing plates are set in a one-to-one correspondence. The first connecting wing plates and the second connecting wing plates are connected by screws 16. Nuts are abutted on the top and bottom surfaces of the first connecting wing plates and the top and bottom surfaces of the second connecting wing plates. All four nuts are threadedly connected to the screws 16.

[0044] The design has been further optimized by installing an observation window 17 at the center of the top surface of the end cap 4. During the grinding process, the operator can monitor the status of the medicine in real time through the observation window 17 without having to open the cap frequently.

[0045] In a further optimized design, several casters 18 are installed at the bottom of the support frame 1. Each caster 18 is equipped with a braking device.

[0046] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do 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, they should not be construed as limitations on this utility model.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pharmaceutical grinding and measuring device for pharmaceutical testing, characterized in that, include: A support frame (1) is provided, on which a drive assembly and a weighing base assembly are mounted, and a material collection hopper (2) is mounted at the bottom of the weighing base assembly. Grinding cylinder (3), the grinding cylinder (3) is installed on the support frame (1), the top of the grinding cylinder (3) is detachably connected with an end cap (4), and the bottom of the side wall of the grinding cylinder (3) is provided with several discharge through holes (5); The discharge hopper (6) is fixedly installed on the outer wall of the grinding cylinder (3). The discharge hopper (6) covers a plurality of discharge through holes (5). The top of the discharge hopper (6) is provided with a slot (7). The bottom of the discharge hopper (6) faces the collection hopper (2). A lifting assembly is installed on the outer wall of the grinding cylinder (3). A baffle valve plate (8) is installed at the lifting end of the lifting assembly. The baffle valve plate (8) extends into the discharge hopper (6) along the slot (7). The grinding head is rotatably connected to the inner bottom wall of the grinding cylinder (3) and is connected to the output end of the drive assembly.

2. The pharmaceutical grinding and measuring device for pharmaceutical testing according to claim 1, characterized in that: The weighing base assembly includes a base body (10) mounted on the side wall of the support frame (1), a weighing sensor (11) is mounted on the top surface of the base body (10), the bottom of the collection hopper (2) is detachably connected to the top surface of the base body (10), the bottom of the collection hopper (2) is in contact with the weighing sensor (11), and the top of the collection hopper (2) is open.

3. The pharmaceutical grinding and metering device for pharmaceutical testing according to claim 1, characterized in that: The drive assembly includes a motor mount (12) mounted on the side wall of the support frame (1), a drive motor (13) mounted on the motor mount (12), a first pulley mounted on the output shaft of the drive motor (13), the grinding head being rotatably connected to the grinding cylinder (3) via a rotating shaft, the bottom of the rotating shaft extending outside the grinding cylinder (3), and a second pulley mounted on the bottom of the rotating shaft, the first pulley and the second pulley being connected by a synchronous belt (14).

4. The pharmaceutical grinding and metering device for pharmaceutical testing according to claim 1, characterized in that: The lifting assembly includes a cylinder (15) installed on the outer wall of the grinding cylinder (3). A connecting plate (9) is installed on the piston end of the cylinder (15). The top of the baffle valve plate (8) is fixedly connected to the connecting plate (9). Both the connecting plate (9) and the baffle valve plate (8) are slidably connected to the outer wall of the grinding cylinder (3).

5. The pharmaceutical grinding and metering device for pharmaceutical testing according to claim 1, characterized in that: A plurality of first connecting wing plates are installed on the end cap (4), and a plurality of second connecting wing plates are installed on the outer wall of the grinding cylinder (3). The plurality of first connecting wing plates and the plurality of second connecting wing plates are arranged in a one-to-one correspondence. The first connecting wing plates and the second connecting wing plates are connected by screws (16). Nuts are abutted on the top and bottom surfaces of the first connecting wing plates and the top and bottom surfaces of the second connecting wing plates. All four nuts are threadedly connected to the screws (16).

6. The pharmaceutical grinding and metering device for pharmaceutical testing according to claim 1, characterized in that: An observation window (17) is installed at the center of the top surface of the end cap (4).

7. The pharmaceutical grinding and metering device for pharmaceutical testing according to claim 1, characterized in that: The bottom of the support frame (1) is equipped with several casters (18).

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