Tablet hardness tester with recording function

Abstract

The utility model relates to the technical field of tablet hardness, and discloses a tablet hardness tester with a recording function, which comprises a recorder, the front end of the top of the recorder is fixedly connected with a connecting column, the top of the front side of the connecting column is fixedly connected with an extension plate, and the bottom of the extension plate is fixedly connected with a bearing pipe. A plurality of sliding grooves are formed in the inner side of the bearing pipe, a telescopic rod is fixedly connected to the top of the inner side of the bearing pipe, a downward pressing rod is fixedly connected to the output end of the telescopic rod, a plurality of sliding blocks are fixedly connected to the exterior of the downward pressing rod, and the sliding blocks are slidably connected to the interior of the bearing pipe through the downward pressing rod. According to the utility model, the plurality of sliding grooves in the bearing tube are matched with the sliding blocks on the lower pressing rod, so that uneven stress caused by inclination is avoided, the plurality of rubber columns and the rubber pressing plate at the bottom can uniformly disperse pressure to each part of a tablet, the uniform stress of the tablet is ensured, and the accuracy and the reliability of a test result are improved.

Description

Technical Field

[0001] This utility model relates to the field of tablet hardness technology, and in particular to a tablet hardness tester with recording function. Background Technology

[0002] Tablets are solid dosage forms, either round or irregularly shaped, made by uniformly mixing drugs and excipients and then granulating or directly compressing them. The manufacturing process involves mixing the drug raw materials with starch, sucrose, and dextrin excipients in a specific ratio, followed by pulverization and sieving pretreatment. The tablets are then shaped using wet granulation, dry granulation, or direct compression. Tablets offer advantages such as accurate dosage, stable quality, and convenient administration, making them suitable for large-scale production. Furthermore, coating technology can achieve different drug release characteristics. The appearance, color, and shape of tablets can be designed according to requirements, facilitating patient identification and administration. Tablets are a commonly used drug dosage form in clinical practice.

[0003] In the pharmaceutical industry, tablet hardness is an indicator of drug quality. Traditional tablet hardness testers can only measure hardness and cannot automatically record data. Manual recording is not only inefficient but also prone to data errors and omissions, making it difficult to meet the needs of drug production quality traceability and big data analysis. Tablet hardness testers with recording functions can automatically and accurately record the hardness value and related parameters of each measurement, greatly improving the efficiency and accuracy of data recording. This allows quality control personnel to monitor the production process in real time and perform subsequent data analysis, ensuring stable and reliable drug quality.

[0004] Existing traditional instruments have difficulty in achieving uniform force on tablets during compression testing. The unreasonable structural design of the pressure application device causes the pressure to concentrate in a local area of ​​the tablet, which cannot simulate the stress state under real use scenarios. The test platform and the pressure head lack a coordinated adjustment mechanism, which cannot accurately adapt to tablets of different shapes and sizes, resulting in uneven force and affecting the accuracy and reliability of the test results. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a tablet hardness tester with recording function, which aims to improve the problem that the existing technology is difficult to achieve uniform force on the tablet, resulting in pressure concentration in a local area of ​​the tablet. For tablets of different shapes and sizes, it is impossible to accurately adapt to the tablet, resulting in uneven force and affecting the accuracy and reliability of the test results.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tablet hardness tester with recording function, comprising a recorder, a connecting column fixedly connected to the top front end of the recorder, an extension plate fixedly connected to the top front side of the connecting column, a bearing tube fixedly connected to the bottom of the extension plate, multiple sliding grooves opened on the inner side of the bearing tube, a telescopic rod fixedly connected to the top inner side of the bearing tube, a pressing rod fixedly connected to the output end of the telescopic rod, multiple sliding blocks fixedly connected to the outside of the pressing rod, the multiple sliding blocks being slidably connected to the inside of the bearing tube through the multiple pressing rods, multiple rubber columns fixedly connected to the bottom of the pressing rod, the bottom ends of the multiple rubber columns being fixedly connected to the same rubber pressure plate, and a fixing mechanism opened on the top front side of the recorder, the fixing mechanism being used to fix the tablet.

[0007] As a further description of the above technical solution:

[0008] The fixing mechanism includes a groove, which is located on the top front side of the recorder. A transmission block is fixedly connected to the bottom inner side of the groove, and a fixing ring is fixedly connected to the top of the transmission block. Threaded rods are threadedly connected to the outer perimeter of the fixing ring. Knobs are fixedly connected to the opposite sides of the multiple threaded rods, and sponge clips are threadedly connected to the adjacent sides of the multiple threaded rods.

[0009] As a further description of the above technical solution:

[0010] The recorder is fixedly connected to four corners at the bottom, and connecting rods are fixedly connected between adjacent front and rear legs.

[0011] As a further description of the above technical solution:

[0012] Each of the legs has a rubber base fixedly connected to its bottom, and the surfaces of the rubber bases are all rounded.

[0013] As a further description of the above technical solution:

[0014] The recorder has a sliding groove on its left side, and a storage box is slidably connected inside the sliding groove.

[0015] As a further description of the above technical solution:

[0016] The storage box has a handle threadedly connected to its left side, and screws are threadedly connected to both the front and back sides of the handle.

[0017] As a further description of the above technical solution:

[0018] Two power blocks are fixedly connected to the rear right side of the recorder, and power indicator lights are fixedly connected to the outside of each of the two power blocks.

[0019] As a further description of the above technical solution:

[0020] A mounting plate is fixedly connected to the rear left end of the recorder, and multiple heat sinks are fixedly connected to the outside of the mounting plate.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the sliding grooves inside the bearing tube cooperate with the sliding blocks on the pressing rod to ensure that the pressing rod presses down vertically and stably, avoiding uneven force due to tilting. The telescopic rod adjusts the pressure to make the pressure precise and controllable. The multiple rubber pillars and rubber pressure plates at the bottom can fit the surface of tablets of different shapes and sizes, and distribute the pressure evenly to all parts of the tablet, ensuring uniform force on the tablet and improving the accuracy and reliability of the test results.

[0023] 2. In this utility model, the groove and the transmission block form a stable base to provide support for the fixing ring. The threaded rod and the knob outside the fixing ring can adjust the position of the sponge block. Rotating the knob makes the sponge block move along the threaded rod towards the tablet until the tablet is tightly clamped, ensuring that sufficient friction is generated to prevent the tablet from sliding, and also avoiding damage to the tablet due to excessive clamping force. Attached Figure Description

[0024] Figure 1 This is a front view of a tablet hardness tester with recording function proposed in this utility model;

[0025] Figure 2 This is a perspective view of a tablet hardness tester with recording function proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the recorder structure of a tablet hardness tester with recording function proposed in this utility model;

[0027] Figure 4 This is an exploded view of the carrier tube of a tablet hardness tester with recording function proposed in this utility model.

[0028] Figure 5 This is a schematic diagram of the fixing mechanism of a tablet hardness tester with recording function proposed in this utility model.

[0029] Legend:

[0030] 1. Recorder; 2. Fixing mechanism; 201. Transmission block; 202. Fixing ring; 203. Threaded rod; 204. Knob; 205. Sponge clip; 206. Groove; 3. Connecting column; 4. Extension plate; 5. Bearing tube; 6. Sliding groove; 7. Telescopic rod; 8. Downward pressure rod; 9. Sliding block; 10. Rubber column; 11. Rubber pressure plate; 12. Support leg; 13. Rubber base; 14. Connecting rod; 15. Sliding groove; 16. Storage box; 17. Handle; 18. Screw; 19. Power indicator light; 20. Power block; 21. Mounting plate; 22. Heat sink. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0032] Reference Figure 1 , Figure 2 and Figure 4 An embodiment of this utility model provides a tablet hardness tester with recording function, including a recorder 1. A connecting column 3 is fixedly connected to the top front end of the recorder 1. An extension plate 4 is fixedly connected to the top front side of the connecting column 3. A bearing tube 5 is fixedly connected to the bottom of the extension plate 4. Multiple sliding grooves 6 are opened on the inner side of the bearing tube 5. A telescopic rod 7 is fixedly connected to the top inner side of the bearing tube 5. A pressing rod 8 is fixedly connected to the output end of the telescopic rod 7. The pressing rod 8 is pressed down by the pushing force of the telescopic rod 7. Multiple sliding blocks 9 are fixedly connected to the outside of the pressing rod 8. The multiple sliding blocks 9 are slidably connected to the inside of the bearing tube 5 through the multiple pressing rods 8. Multiple rubber columns 10 are fixedly connected to the bottom of the pressing rod 8 to make the pressure more uniform. The bottom ends of the multiple rubber columns 10 are all fixedly connected to the same rubber pressure plate 11.

[0033] Specifically, the connecting column 3 at the top front of the recorder 1 firmly supports the extension plate 4. The bearing tube 5 connected to the bottom of the extension plate 4 provides the installation base for the pressing mechanism. Multiple sliding grooves 6 on the inner side of the bearing tube 5 cooperate with the sliding block 9 on the outside of the pressing rod 8 to form a guide structure, ensuring that the pressing rod 8 can only move smoothly downward in the vertical direction under the push of the telescopic rod 7, avoiding deviation and shaking, and ensuring that the pressure is transmitted vertically and stably to the tablet. The telescopic rod 7 can flexibly adjust the output thrust according to actual needs to achieve precise control of the pressing force and meet the testing requirements of tablets with different hardness. Multiple rubber columns 10 and rubber pressure plates 11 connected to the bottom of the pressing rod 8 can adaptively conform to the tablet surface. Even if the tablet shape is irregular, the pressure can be evenly distributed to the entire pressure surface, eliminating the problem of local stress concentration. During the pressing test, the rubber pressure plate 11 is in full contact with the tablet and applies precise pressure, effectively avoiding the tablet from cracking due to uneven force, providing stable and reliable conditions for hardness testing, and greatly improving the accuracy and reliability of the test data.

[0034] Reference Figure 1 , Figure 2 and Figure 5 The fixing mechanism 2 includes a groove 206, which is located on the top front side of the recorder 1. A transmission block 201 is fixedly connected to the bottom inner side of the groove 206 to transmit pressure values ​​to the instrument and provide a support surface. A fixing ring 202 is fixedly connected to the top of the transmission block 201. Threaded rods 203 are threadedly connected to the outer periphery of the fixing ring 202. A knob 204 is fixedly connected to the opposite side of the multiple threaded rods 203. A sponge clip 205 is threadedly connected to the adjacent side of the multiple threaded rods 203. Rotating the knob 204 causes the sponge clip 205 to engage and move along the threaded rod 203 towards the tablet.

[0035] Specifically, the transmission block 201 at the bottom inner side of the groove 206 not only serves as a key component for pressure transmission, accurately transmitting the force of the tablet under pressure to the pressure sensing system inside the instrument to ensure the accuracy of hardness measurement, but also provides a stable support plane for the components above. The fixing ring 202 at the top of the transmission block 201 forms a frame for fixing the tablet. The threaded rods 203 evenly distributed around the outside of the fixing ring 202 and the knob 204 form an adjustable mechanism. By rotating the knob 204, the operator can drive the threaded rods 203 to rotate, causing the sponge clamping block 205 to move horizontally along the threaded rods 203. When the knob 204 is rotated clockwise, the sponge clamping block 205 precisely engages and moves towards the tablet, tightly clamping the tablet from multiple directions. The sponge clamping block 205 is soft and has a certain degree of elasticity, which can provide sufficient friction to prevent the tablet from sliding or jumping during the pressing process, and also avoid damage to the tablet surface due to excessive compression, effectively ensuring the stability and integrity of the tablet during the testing process, thereby improving the reliability of the hardness test results.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The recorder 1 has four fixed legs 12 at the bottom corners. The front and rear legs 12 are fixedly connected to each other. The bottom of each of the legs 12 is fixedly connected to a rubber base 13 to increase the friction with the contact surface. The surfaces of the rubber bases 13 are all rounded. The left side of the recorder 1 has a slide groove 15. The inside of the slide groove 15 is slidably connected to a storage box 16 for placing utensils.

[0037] Specifically, the support legs 12 located at the four corners of the bottom of the recorder 1 provide a stable support structure for the instrument. The connecting rods 14 connecting the front and rear support legs 12 enhance the structural strength and stability between the support legs 12, preventing the instrument from shaking during testing. The rubber bases 13 at the bottom of the support legs 12 increase the friction with the placement surface, preventing the instrument from sliding during use. The surface of the rubber bases 13 is designed with rounded edges, which avoids scratching the placement surface and reduces stress concentration caused by sharp corners. The sliding groove 15 on the left side of the recorder 1 slides into the storage box 16, which can hold the tools and spare parts required for testing, keeping the working environment clean and improving the efficiency of the testing work.

[0038] Reference Figure 1 , Figure 2 and Figure 3 The left side of the storage box 16 is threaded with a handle 17, and the front and rear sides of the handle 17 are threaded with screws 18. The right rear end of the recorder 1 is fixedly connected to two power blocks 20, and the exterior of each power block 20 is fixedly connected with a power indicator light 19. The left rear end of the recorder 1 is fixedly connected to a mounting plate 21, and the exterior of the mounting plate 21 is fixedly connected with multiple heat sinks 22 for heat dissipation of the instrument.

[0039] Specifically, the handle 17 on the left side of the storage box 16 is securely installed via a threaded connection, facilitating the operator's access to the testing equipment stored inside. The screws 18 on the front and back sides of the handle 17 reinforce the connection, preventing the handle 17 from loosening and falling off during frequent use. The two power blocks 20 on the right rear side of the recorder 1 are equipped with power indicator lights 19, which can intuitively display the power on / off status and operating status of the instrument. Multiple heat sinks 22 fixed on the mounting plate 21 on the left rear side increase the heat dissipation area of ​​the internal electronic components, accelerate heat dissipation, effectively avoid the impact of high temperatures caused by long-term operation of the instrument on performance and service life, and ensure the stable, efficient and continuous operation of the tablet hardness tester.

[0040] Working principle: When starting the test, the operator places the tablet to be tested in the test area. The recorder 1 is responsible for the core control and data recording of the entire instrument. The connecting column 3 stably supports the extension plate 4. The bearing tube 5 below the extension plate 4 provides bearing for the pressing mechanism. The output end of the telescopic rod 7 generates thrust to push the pressing rod 8 down. The sliding groove 6 inside the bearing tube 5 and the sliding block 9 outside the pressing rod 8 limit the pressing rod 8 to move smoothly in the vertical direction, avoiding deviation and shaking during the pressing process, and ensuring that the pressure can be applied vertically and stably to the tablet. The telescopic rod 7 also has the ability to adjust the output thrust. The operator can adjust the pressing force according to the expected hardness of the tablet to adapt to the testing requirements of tablets with different hardness. When the pressing rod 8 is pressed down, the multiple rubber columns 10 and the rubber pressure plate 11 at the bottom can automatically fit into the surface of the tablet, evenly distributing the pressure to the entire pressure surface of the tablet, avoiding local stress concentration, so that the tablet can be evenly stressed and prevent cracking due to uneven stress.

[0041] Before conducting the hardness test, the operator places the tablet in the fixing ring 202 and rotates the knob 204 to drive the threaded rod 203 to rotate, causing the sponge clamp 205 to move horizontally along the threaded rod 203, precisely clamping the tablet from all sides. The sponge clamp 205 provides sufficient friction to prevent the tablet from sliding and flying away, while avoiding damage to the tablet surface, ensuring the stability and integrity of the tablet during the test. During the test, the pressure applied by the pressing mechanism acts on the tablet. The transmission block 201 in the groove 206 accurately transmits the force generated by the pressure on the tablet to the pressure sensing system inside the instrument, and provides stable support for the upper components, maintaining the stability of the entire fixed structure.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tablet hardness tester with recording function, comprising a recorder (1), characterized in that: The recorder (1) has a connecting column (3) fixedly connected to its top front end. An extension plate (4) is fixedly connected to the top front side of the connecting column (3). A bearing tube (5) is fixedly connected to the bottom of the extension plate (4). Multiple sliding grooves (6) are provided on the inner side of the bearing tube (5). A telescopic rod (7) is fixedly connected to the top inner side of the bearing tube (5). A pressing rod (8) is fixedly connected to the output end of the telescopic rod (7). Multiple sliding blocks (9) are fixedly connected to the outside of the pressing rod (8). Multiple sliding blocks (9) are slidably connected to the inside of the bearing tube (5) through multiple pressing rods (8). Multiple rubber columns (10) are fixedly connected to the bottom of the pressing rod (8). The bottom end of multiple rubber columns (10) is fixedly connected to the same rubber pressure plate (11). A fixing mechanism (2) is provided on the top front side of the recorder (1). The fixing mechanism (2) is used to fix the tablet.

2. A tablet hardness tester with recording function according to claim 1, characterized in that: The fixing mechanism (2) includes a groove (206) which is located on the top front side of the recorder (1). A transmission block (201) is fixedly connected to the bottom inner side of the groove (206). A fixing ring (202) is fixedly connected to the top of the transmission block (201). Threaded rods (203) are threaded around the outer periphery of the fixing ring (202). A knob (204) is fixedly connected to the opposite side of each of the multiple threaded rods (203). A sponge clip (205) is threaded to the adjacent side of each of the multiple threaded rods (203).

3. A tablet hardness tester with recording function according to claim 1, characterized in that: The recorder (1) has four fixed legs (12) at the bottom corners, and connecting rods (14) are fixedly connected between adjacent front and rear legs (12).

4. A tablet hardness tester with recording function according to claim 3, characterized in that: Each of the multiple legs (12) has a rubber base (13) fixedly connected to its bottom, and the surfaces of the multiple rubber bases (13) are all rounded.

5. A tablet hardness tester with recording function according to claim 1, characterized in that: The recorder (1) has a slide groove (15) on its left side, and a storage box (16) is slidably connected inside the slide groove (15).

6. A tablet hardness tester with recording function according to claim 5, characterized in that: The storage box (16) has a handle (17) threadedly connected to its left side, and screws (18) are threadedly connected to both the front and back sides of the handle (17).

7. A tablet hardness tester with recording function according to claim 1, characterized in that: Two power blocks (20) are fixedly connected to the rear right end of the recorder (1), and power indicator lights (19) are fixedly connected to the outside of the two power blocks (20).

8. A tablet hardness tester with recording function according to claim 1, characterized in that: A mounting plate (21) is fixedly connected to the rear left end of the recorder (1), and multiple heat sinks (22) are fixedly connected to the outside of the mounting plate (21).

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