Tablet hardness measuring device for drug research and development

Abstract

The utility model discloses a tablet hardness measuring device for medicine research and development, which comprises a base, the top of the base is fixedly communicated with two pairs of vertical plates, the two pairs of vertical plates are jointly and fixedly connected with a top plate, a tablet tube fixedly connected with the top plate is arranged on the top plate in a penetrating manner, a plurality of tablet bodies are stacked in the tablet tube, and the tablet bodies are fixedly connected with the top plate. An electric telescopic rod is fixedly connected to the bottom of the top plate, a hardness measuring block is fixedly connected to the bottom of the electric telescopic rod, a motor is fixedly connected to the rear end of the vertical plate on the left rear side, each pair of vertical plates are jointly and rotationally connected with a rotating rod, and the rotating rod on the left side is fixedly connected with the output end of the motor. Tablets can be conveyed through the conveyor belt, so that the measuring efficiency is improved; and a brush roller drives a brush to rotate, so that the conveying belt can be cleaned, residual tablet chippings are cleaned, cleanliness of the surface of the conveying belt is guaranteed, follow-up tablets are stably placed, and the follow-up tablet detection effect is good.

Description

Technical Field

[0001] This utility model relates to the field of tablet hardness testing technology, and in particular to a tablet hardness testing device used in drug research and development. Background Technology

[0002] Drug research and development mainly involves developing effective drugs and treatment methods for preventing and treating diseases. The tablets developed in drug research and development often need to be tested for hardness, so a tablet hardness testing device is needed for drug research and development.

[0003] Existing tablet hardness testing devices can only test a single tablet, resulting in slow testing efficiency. Furthermore, when the tablet hardness does not meet the requirements, the tested tablet may break, causing fragments to accumulate on the conveyor belt. These residual fragments can affect the stability of subsequently placed tablets, leading to poor testing results. To address these issues, this application proposes a tablet hardness testing device for pharmaceutical research and development. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a tablet hardness testing device for pharmaceutical research and development. The device uses a conveyor belt to transport tablets, improving testing efficiency. A brush roller drives a brush to rotate, cleaning the conveyor belt and removing residual tablet debris, ensuring the cleanliness of the conveyor belt surface. This results in stable placement of subsequent tablets and better tablet testing performance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tablet hardness testing device for pharmaceutical research includes a base. Two pairs of upright plates are fixedly connected to the top of the base. A top plate is fixedly connected to both pairs of upright plates. A tablet tube is fixedly connected to the top plate, and multiple tablet bodies are stacked inside the tablet tube. An electric telescopic rod is fixedly connected to the bottom of the top plate, and a hardness testing block is fixedly connected to the bottom of the electric telescopic rod. A motor is fixedly connected to the rear end of the left rear upright plate. Each pair of upright plates is rotatably connected to a rotating rod. The left rotating rod is fixedly connected to the output end of the motor. A conveyor roller is fixedly connected to the outer wall of each rotating rod. A conveyor belt is fitted onto two conveyor rollers. A U-shaped plate is fixedly connected to the top of the base, and a cleaning mechanism is provided on the U-shaped plate. A tablet collection box is placed on the top of the base.

[0007] Preferably, the cleaning mechanism includes a rotating rod that passes through and is rotatably connected to the U-shaped plate, a brush roller is fixedly connected to the outer wall of the rotating rod, and a chain is sleeved on the outer wall of the rotating rod and the outer walls of the two rotating rods.

[0008] Preferably, the conveyor belt has multiple tablet positioning slots, and the positions of the multiple tablet positioning slots are distributed at equal intervals.

[0009] Preferably, the top of the U-shaped plate abuts against the bottom of the upper conveyor belt.

[0010] Preferably, a first sprocket is fixedly connected to the front end of the rotating rod, and a second sprocket is fixedly connected to the outer wall of each of the two rotating rods. The chain is sleeved on the outer wall of the first sprocket and the two second sprockets.

[0011] Preferably, the outer wall of the brush roller is fitted with a plurality of brushes, and the plurality of brushes are arranged to abut against the bottom of the conveyor belt.

[0012] Preferably, the distance between the bottom of the tablet tube and the top of the conveyor belt is less than the thickness of the tablet body.

[0013] Compared with the prior art, the advantages of this utility model are as follows:

[0014] 1. The motor output drives the left rotating rod, chain, and right rotating rod to rotate. The two rotating rods drive the conveyor roller and conveyor belt to rotate, realizing the transmission of the conveyor belt. When the tablet limiting groove is directly below the tablet tube, the bottom tablet falls into the tablet limiting groove. At this time, the top height of the bottom tablet is lower than the bottom height of the tablet tube. The rotation of the conveyor belt drives the tablet body to move, improving the measurement efficiency.

[0015] 2. The chain rotation drives the rotating rod and brush roller to rotate. The brushes on the brush roller clean the bottom of the conveyor belt and remove any residual tablets in the tablet limiting groove, ensuring that the tablet limiting groove is clean, the subsequent tablets are placed stably, and the subsequent tablet detection results are good.

[0016] In summary, the conveyor belt can transport tablets, improving testing efficiency; the brush roller can drive the brush to rotate and clean the conveyor belt, removing residual tablet debris and ensuring the cleanliness of the conveyor belt surface. This makes subsequent tablets stable and results in better tablet testing. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of a tablet hardness measuring device for pharmaceutical research and development proposed in this utility model;

[0018] Figure 2 This is a rear view structural schematic diagram of a tablet hardness measuring device for pharmaceutical research and development proposed in this utility model;

[0019] Figure 3This is a cross-sectional schematic diagram of a tablet hardness measuring device for drug research and development proposed in this utility model.

[0020] In the diagram: 1. Base, 2. Vertical plate, 3. Top plate, 4. Pill tube, 5. Pill body, 6. Electric telescopic rod, 7. Hardness measuring block, 8. Motor, 9. Rotating rod, 10. Conveying roller, 11. Conveyor belt, 12. Pill limiting groove, 13. U-shaped plate, 14. Chain, 15. Rotating rod, 16. Brush roller, 17. Pill collection box. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-3 A tablet hardness testing device for pharmaceutical research includes a base 1. Two pairs of upright plates 2 are fixedly connected to the top of the base 1. The two pairs of upright plates 2 are fixedly connected to a top plate 3. A tablet tube 4 is fixedly connected to the top plate 3. Multiple tablet bodies 5 are stacked inside the tablet tube 4. The distance between the bottom of the tablet tube 4 and the top of the conveyor belt 11 is less than the thickness of the tablet body 5. When the conveyor belt 11 rotates, the tablet body 5 is limited and does not move inside the tablet tube 4. When the tablet limiting groove 12 moves to the bottom of the tablet tube 4, the bottommost tablet falls into the tablet limiting groove 12. At this time, the tablet is separated from the tablet tube 4 (the top height of the bottommost tablet is lower than the bottom height of the tablet tube 4), so that the tablet moves with the conveyor belt 11.

[0023] An electric telescopic rod 6 is fixedly connected to the bottom of the top plate 3. A hardness measuring block 7 is fixedly connected to the bottom of the electric telescopic rod 6. The hardness of the tablet is tested by the hardness measuring block 7. The output torque of the electric telescopic rod 6 is the same each time. The electric telescopic rod 6 with an output torque equal to the hardness of the tablet body 5 is selected in advance.

[0024] A motor 8 is fixedly connected to the rear end of the left rear upright plate 2. A rotating rod 9 is connected to each pair of upright plates 2 for rotation. The rotating rod 9 on the left side is fixedly connected to the output end of the motor 8. A conveying roller 10 is fixedly connected to the outer wall of each rotating rod 9. A conveyor belt 11 is fitted together on the two conveyor rollers 10. Multiple tablet limiting grooves 12 are opened on the conveyor belt 11. The multiple tablet limiting grooves 12 are evenly distributed. The tablets can be conveyed by the conveyor belt 11.

[0025] A U-shaped plate 13 is fixedly connected to the top of the base 1. The top of the U-shaped plate 13 abuts against the bottom of the upper conveyor belt 11 to support the tablets during hardness testing. The support is stable during hardness testing. A cleaning mechanism is provided on the U-shaped plate 13. The cleaning mechanism includes a rotating rod 15 that passes through the U-shaped plate 13 and is rotatably connected to it. A brush roller 16 is fixedly connected to the outer wall of the rotating rod 15. Multiple brushes are sleeved on the outer wall of the brush roller 16. The multiple brushes abut against the bottom of the conveyor belt 11. The rotation of the brush roller 16 can drive the brushes to rotate, cleaning the conveyor belt 11 and removing residual tablet fragments in the tablet limiting groove 12.

[0026] A chain 14 is fitted on the outer wall of the rotating rod 15 and the outer walls of the two rotating rods 9. A first sprocket is fixedly connected to the front end of the rotating rod 15, and a second sprocket is fixedly connected to the outer wall of each of the two rotating rods 9. The chain 14 is fitted on the outer wall of the first sprocket and the two second sprockets. A pill collection box 17 is placed on the top of the base 1 to collect the tested pills.

[0027] In this invention, the operator first stacks the tablets to be tested one by one in the tablet tube 4. Because the distance between the tablet tube 4 and the conveyor belt 11 is less than the thickness of the tablet body 5, the bottommost tablet body 5 abuts against the top of the conveyor belt 11, thus limiting the tablet body 5. The motor 8 is then started, and its output drives the left rotating rod 9, chain 14, and right rotating rod 9 to rotate. These two rotating rods 9 drive the conveyor roller 10 and the conveyor belt 11 to rotate, thus achieving the transmission of the conveyor belt 11. When the tablet limiting groove 12 is directly below the tablet tube 4, the bottommost tablet falls into the tablet limiting groove 12. At this point, the top height of the bottommost tablet is lower than the bottom height of the tablet tube 4. The rotation of the conveyor belt 11 drives the tablet body 5 to move until it is directly below the hardness testing block 7. At this point, the motor 8 is turned off, and the electric telescopic rod 6 is started, driving the tablet body 5 to move. The hardness testing block 7 moves down to test the hardness of the tablet body 5 (since the output torque of the electric telescopic rod 6 is constant, an electric telescopic rod 6 with an output torque equal to the tablet hardness threshold is selected in advance). After the hardness test is completed, the electric telescopic rod 6 is started to move the hardness testing block 7 up, and the motor 8 is started to drive the conveyor belt 11 and the tablet body 5 to achieve equal-length interval conveying and to test the hardness of the next tablet. By observing whether the tablet surface is damaged, it can be determined whether the tablet hardness meets the requirements (when the tablet is damaged, it means that it does not meet the hardness requirements, and vice versa). As the conveyor belt 11 continues to rotate, the tested tablets are concentrated in the tablet collection box 17. The chain 14 rotates to drive the rotating rod 15 and the brush roller 16 to rotate. The brush on the brush roller 16 cleans the bottom of the conveyor belt 11 and cleans the tablets remaining in the tablet limiting groove 12 to ensure that the tablet limiting groove 12 is clean and that subsequent tablets are placed stably.

[0028] This invention solves the problems of existing tablet hardness testing devices, which can only test a single tablet, have slow testing efficiency, and will break when the tablet hardness does not meet the requirements. In this case, the tablet fragments will accumulate on the conveyor belt, and the residual tablet fragments on the conveyor belt will affect the stability of the tablets placed later, resulting in poor subsequent testing results.

Claims

1. A tablet hardness measuring device for pharmaceutical development, comprising a base (1), characterized in that, The top of the base (1) is fixedly connected with two pairs of vertical plates (2), and the two pairs of vertical plates (2) are fixedly connected with a top plate (3) in common, a tablet tube (4) fixedly connected with the top plate (3) is provided through the top plate (3), a plurality of tablet bodies (5) are stacked in the tablet tube (4), an electric telescopic rod (6) is fixedly connected to the bottom of the top plate (3), a hardness determination block (7) is fixedly connected to the bottom of the electric telescopic rod (6), a motor (8) is fixedly connected to the rear end of the left rear vertical plate (2), a rotating rod (9) is rotatably connected to each pair of vertical plates (2), the left rotating rod (9) is fixedly connected with the output end of the motor (8), a conveying roller (10) is fixedly connected to the outer wall of each rotating rod (9), a conveyor belt (11) is sleeved on the two conveying rollers (10) in common, a U-shaped plate (13) is fixedly connected to the top of the base (1), a cleaning mechanism is arranged on the U-shaped plate (13), and a tablet collecting box (17) is placed on the top of the base (1). The cleaning mechanism comprises a rotating rod (15) penetrating through the U-shaped plate (13) and rotatably connected with the U-shaped plate (13), a brush roller (16) is fixedly connected to the outer wall of the rotating rod (15), and a chain (14) is sleeved on the outer wall of the rotating rod (15) and the outer walls of the two rotating rods (9) in common.

2. The tablet hardness measuring device for pharmaceutical development according to claim 1, wherein A plurality of tablet limiting grooves (12) are formed in the conveyor belt (11), and the positions of the plurality of tablet limiting grooves (12) are distributed at equal intervals.

3. The tablet hardness testing device for pharmaceutical development according to claim 1, wherein The top of the U-shaped plate (13) is arranged in abutment with the bottom of the upper conveyor belt (11).

4. The tablet hardness testing device for pharmaceutical development of claim 1, wherein, The front end of the rotating rod (15) is fixedly connected with a first sprocket, the outer walls of the two rotating rods (9) are fixedly connected with second sprockets, and the chain (14) is sleeved on the outer walls of the first sprocket and the two second sprockets.

5. The tablet hardness testing device for pharmaceutical development of claim 1, wherein, A plurality of brushes are sleeved on the outer wall of the brush roller (16), and the plurality of brushes are arranged in abutment with the bottom of the conveyor belt (11).

6. The tablet hardness testing device for pharmaceutical development of claim 1, wherein, The distance between the bottom of the tablet tube (4) and the top of the conveyor belt (11) is less than the thickness of the tablet body (5).

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