Tablet hardness tester for detecting hardness of multiple tablets

The tablets are automatically dispersed by a motor-driven rotating rod and turntable system, which solves the problem that tablets cannot automatically enter the testing mechanism in existing equipment, and realizes efficient and accurate hardness testing of multiple tablets and a simplified maintenance process.

CN224122367UActive Publication Date: 2026-04-14TIANJIN JINMEN RUIKE TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN JINMEN RUIKE TECHNOLOGY DEVELOPMENT CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing tablet hardness testing equipment cannot automatically enter the testing mechanism, and the tablet position is prone to deviation, resulting in increased testing time and inaccurate results.

Method used

A system including a motor-driven rotary rod and turntable is designed to automatically disperse tablets into circular grooves via baffle guidance, and to perform hardness testing via a support plate and extrusion column. A disassembly mechanism is provided to facilitate turntable replacement and maintenance.

Benefits of technology

It enables automated hardness testing of multiple tablets, improving testing efficiency and accuracy, and simplifying equipment maintenance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224122367U_ABST
    Figure CN224122367U_ABST
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Abstract

The utility model relates to the technical field of tablet detection, and discloses a tablet hardness tester for detecting the hardness of a plurality of tablets, which comprises a table top, a motor is fixedly connected to the left side of the bottom of the table top, a rotating rod is fixedly connected to the output end of the motor, a disc is rotatably connected to the top of the rotating rod, and a turntable is rotatably connected to the top of the disc. A fixed rod is rotatably connected to the top of the rotating disc, a plurality of baffles are fixedly connected to the front side of the outer wall of the fixed rod, a supporting disc is slidably connected to the upper end of the outer wall of the fixed rod, and a pushing column is fixedly connected to the top of the supporting disc. According to the tablet hardness testing device, the motor is started, at the moment, the motor drives the rotating rod to rotate, then the rotating rod drives the rotating disc to rotate, the baffles are fixed to the fixing rods, tablets are extruded and detected, and the effects that the tablets can be dispersed into the circular grooves through the rotating effect of the rotating disc, and hardness testing is conducted on the tablets are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of tablet testing technology, and in particular to a tablet hardness tester for testing the hardness of multiple tablets. Background Technology

[0002] Tablet hardness is an important physical indicator of tablet quality. Tablet hardness refers to the tablet's ability to resist damage from external forces. From a production perspective, appropriate hardness ensures the integrity of tablets during the production process, preventing breakage and cracking during coating, packaging, and transportation. Tablets pressed by high-speed tablet presses need a certain degree of hardness to withstand the pressure and friction generated by mechanical operation. Moreover, hardness also affects drug dissolution. Overly hard tablets may cause slow drug dissolution, affecting drug absorption and efficacy, while overly soft tablets may be damaged before reaching the patient. In terms of testing, a specialized hardness tester is usually used to measure tablet hardness. The tablet is fixed on the instrument, and a certain pressure is applied to test the maximum pressure it can withstand. This pressure value represents the tablet's hardness, and hardness testing is required during production.

[0003] Tablet hardness testers primarily determine tablet hardness by applying pressure. A mechanical or electric device slowly applies pressure to the tablet, displaying the hardness value on a screen. The operator rotates a handle to bring two pressure plates closer together, applying pressure to the tablet. When the tablet breaks, the reading on the dial is the tablet's hardness value. However, testing the hardness of a single tablet is costly and inefficient. With technological advancements, multiple tablets can now be tested. The core components typically include a testing platform that holds multiple tablets and a pressure device. The testing platform has multiple regularly arranged grooves and slots to hold the tablets in place, ensuring they don't move or become misaligned during testing. The pressure device generally consists of a motor, lead screw, slider, and pressure sensor. The motor drives the lead screw to rotate, causing the slider to move up and down. The bottom of the slider is connected to the pressure head. However, in this type of multi-tablet testing mechanism, tablets cannot automatically enter the testing mechanism, and tablet positions are prone to deviation, leading to inaccurate pressing and significantly increasing testing time, thus affecting the test results. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a tablet hardness tester for detecting the hardness of multiple tablets, aiming to improve the problems in the prior art where the tablets cannot automatically enter the detection mechanism and the tablet position is prone to deviation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tablet hardness tester for detecting the hardness of multiple tablets, comprising a platform, a motor fixedly connected to the bottom left side of the platform, a rotating rod fixedly connected to the output end of the motor, a disc rotatably connected to the top of the rotating rod, a turntable rotatably connected to the top of the disc, a fixed rod rotatably connected to the top of the turntable, multiple baffles fixedly connected to the front side of the outer wall of the fixed rod, a support plate slidably connected to the upper end of the outer wall of the fixed rod, a pushing column fixedly connected to the top of the support plate, an electric push rod fixedly connected to the top of the pushing column, and a disassembly mechanism provided on the top of the platform for installation and disassembly.

[0006] As a further description of the above technical solution:

[0007] The disassembly mechanism includes a fixed cylinder. Multiple fixed cylinders are fixedly connected to the top left end of the table. A rotating cylinder is slidably connected to the outer wall of the fixed cylinder. A clamping plate is fixedly connected to the outer wall of the rotating cylinder. A magnetic head is fixedly connected to the top of the clamping plate. The outer wall of the magnetic head is slidably connected to a magnetic buckle. A limit rod is fixedly connected to the top left side of the table near the middle. A spring is slidably connected to the outer wall of the limit rod.

[0008] As a further description of the above technical solution:

[0009] The top of each turntable has multiple circular grooves, and the outer wall of each circular groove is slidably connected to an extrusion column. The top of the extrusion column is fixedly connected to the bottom of the support plate.

[0010] As a further description of the above technical solution:

[0011] A stop bar is fixedly connected to the front side of the outer wall of the fixed rod, and a fixing head is fixedly connected to the front side of the stop bar.

[0012] As a further description of the above technical solution:

[0013] Multiple support rods are fixedly connected to the top left side of the tabletop near the edge, and a fixing plate is fixedly connected to the upper end of the outer wall of each of the multiple support rods.

[0014] As a further description of the above technical solution:

[0015] A connecting rod is fixedly connected to the top right side of the tabletop, and an operation screen is fixedly connected to the top of the connecting rod.

[0016] As a further description of the above technical solution:

[0017] A protective shell is fixedly connected to the bottom left side of the platform, and the inside of the protective shell is fixedly connected to the bottom of the motor.

[0018] As a further description of the above technical solution:

[0019] A support block is fixedly connected to the bottom right side of the platform, and a base plate is fixedly connected to the bottom of the support block.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when the motor is started, the motor drives the rotating rod to rotate, and then the rotating rod drives the turntable to rotate. Because the baffle is fixed on the fixed rod, the tablet will fall into the circular groove under the scraping action of the baffle. Then the support plate drives the extrusion column to press down, extruding the tablet and performing testing. This realizes the function of dispersing the tablet into each circular groove through the rotation of the turntable and performing hardness testing.

[0022] 2. In this utility model, when disassembly is required, the clamping plate is first rotated outward, and then the clamping plate drives the magnetic head to rotate outward. At this time, the clamping plate drives the rotating cylinder to rotate on the surface of the fixed cylinder. Then the magnetic head will be attracted to the magnetic buckle. At this time, the spring will spring up, and the turntable can be taken out. Then the clamping plate can lock the turntable again, thus realizing the function of disassembling the turntable for replacement. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a tablet hardness tester for detecting the hardness of multiple tablets according to the present invention.

[0024] Figure 2 This is a top perspective view of a tablet hardness tester for detecting the hardness of multiple tablets according to the present invention.

[0025] Figure 3 This is a partial structural breakdown of the plate of a tablet hardness tester for detecting the hardness of multiple tablets, as proposed in this utility model.

[0026] Figure 4 This is a partial exploded view of the spring structure of a tablet hardness tester for detecting the hardness of multiple tablets, as proposed in this utility model.

[0027] Figure 5 This is a partial structural breakdown of the support plate of a tablet hardness tester for detecting the hardness of multiple tablets, as proposed in this utility model.

[0028] Figure 6 This is a partial structural breakdown of the rotating disk of a tablet hardness tester for detecting the hardness of multiple tablets, as proposed in this utility model.

[0029] Legend:

[0030] 1. Tabletop; 2. Disassembly mechanism; 201. Fixing cylinder; 202. Rotating cylinder; 203. Clamping plate; 204. Magnetic head; 205. Magnetic buckle; 206. Limiting rod; 207. Spring; 3. Motor; 4. Rotating rod; 5. Disc; 6. Turntable; 7. Fixing rod; 8. Baffle; 9. Support plate; 10. Pushing column; 11. Electric push rod; 12. Extrusion column; 13. Circular groove; 14. Stop bar; 15. Fixing head; 16. Support rod; 17. Fixing plate; 18. Connecting rod; 19. Operation panel; 20. Support block; 21. Base plate; 22. Protective shell. Detailed Implementation

[0031] 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.

[0032] Please see the appendix Figure 4 Appendix Figure 5 and attached Figure 6 This utility model provides an embodiment of a tablet hardness tester for detecting the hardness of multiple tablets, including a table 1. A motor 3 is fixedly connected to the bottom left side of the table 1, providing a power source for the whole. A rotating rod 4 is fixedly connected to the output end of the motor 3. A disc 5 is rotatably connected to the top of the rotating rod 4. A turntable 6 is rotatably connected to the top of the disc 5, which can rotate. A fixed rod 7 is rotatably connected to the top of the turntable 6. Multiple baffles 8 are fixedly connected to the front side of the outer wall of the fixed rod 7. A support plate 9 is slidably connected to the upper end of the outer wall of the fixed rod 7, which plays a supporting role. A push column 10 is fixedly connected to the top of the support plate 9. An electric push rod 11 is fixedly connected to the top of the push column 10, which can push. A disassembly mechanism 2 is provided on the top of the table 1, which is used for installation and disassembly.

[0033] Specifically, the device includes a platform 1, with a motor 3 fixedly connected to the bottom left side of the platform 1. The output port of the motor 3 is connected to a rotating rod 4. The top part of the rotating rod 4 is capable of rotational movement and is rotatably connected to a disc 5. The upper surface of the disc 5 is rotatably connected to a turntable 6. The upper part of the turntable 6 is rotatably connected to a fixed rod 7. Multiple baffles 8 are evenly fixedly installed on the outer wall of the fixed rod 7. These baffles 8 are used to guide and block the device during operation. The upper part of the fixed rod 7 is designed with a sliding structure, allowing a support plate 9 to slide on its upper end. A push column 10 is fixedly connected to the upper surface of the support plate 9. An electric push rod 11 is fixedly connected to the top part of the push column 10. The electric push rod 11 can be electric and is used to provide power.

[0034] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The disassembly mechanism 2 includes a fixed cylinder 201. Multiple fixed cylinders 201 are fixedly connected to the top left end of the platform 1. A rotating cylinder 202 is slidably connected to the outer wall of the fixed cylinder 201, which can rotate. A clamping plate 203 is fixedly connected to the outer wall of the rotating cylinder 202. A magnetic head 204 is fixedly connected to the top of the clamping plate 203, which can be magnetically fixed. The outer wall of the magnetic head 204 is slidably connected to the magnetic buckle 205. A limit rod 206 is fixedly connected to the top left side of the platform 1 near the middle. A spring 207 is slidably connected to the outer wall of the limit rod 206, which provides elastic support for the whole.

[0035] Specifically, the disassembly mechanism 2 includes a fixed cylinder 201, which is installed on the top left end of the tabletop 1. To ensure stability and reliability, multiple fixed cylinders 201 are evenly distributed at corresponding positions on the tabletop 1. Each fixed cylinder 201 has a rotating cylinder 202 slidably connected to its outer wall, allowing the rotating cylinder 202 to slide freely on the outer wall of the fixed cylinder 201. A retaining plate 203 is fixedly connected to the outer wall of the rotating cylinder 202, providing a reliable support point. A magnetic head 204 is fixedly connected to the top of the retaining plate 203. The magnetic suction head 204 is a crucial component of the disassembly mechanism 2. It can magnetically attract or release objects. The outer wall of the magnetic suction head 204 is slidably connected to the magnetic buckle 205. In addition, a limiting rod 206 is fixedly connected to the top left side of the table 1 near the middle. The function of the limiting rod 206 is to limit the range of motion of the disassembly mechanism 2 and prevent excessive sliding from causing damage. A spring 207 is slidably connected to the outer wall of the limiting rod 206. The presence of the spring 207 can provide the necessary elasticity for the disassembly mechanism 2, ensuring that it can smoothly and quickly return to the initial position during operation.

[0036] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 The top of the turntable 6 is provided with multiple circular grooves 13. The outer wall of the circular grooves 13 is slidably connected to the extrusion column 12, which plays an extrusion role. The top of the extrusion column 12 is fixedly connected to the bottom of the support plate 9. The front side of the outer wall of the fixing rod 7 is fixedly connected to the stop rod 14, which plays a blocking role. The front side of the stop rod 14 is fixedly connected to the fixing head 15. Multiple support rods 16 are fixedly connected to the top left side of the table 1 near the edge, which makes the support more stable. The upper end of the outer wall of the multiple support rods 16 is fixedly connected to the fixing plate 17, which plays a fixing role.

[0037] Specifically, multiple circular grooves 13 are evenly distributed on the upper surface of the turntable 6. Several extrusion columns 12 are slidably installed on the outer wall of these circular grooves 13. The upper part of the extrusion column 12 is fixedly connected to the lower surface of the support plate 9 to ensure their stability and synchronous movement. In addition, a stop bar 14 is fixedly installed at the front position of the outer wall of the fixed rod 7. A fixed head 15 is fixedly connected to the front end of the stop bar 14 to effectively prevent excessive movement of the extrusion column 12 during operation. Multiple support rods 16 are evenly fixedly installed near the left edge of the upper surface of the table 1. These support rods 16 not only provide additional support for the turntable 6, but also have several fixed plates 17 fixedly connected to their upper outer walls. These fixed plates 17 further enhance the stability and durability of the entire device.

[0038] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 6 A connecting rod 18 is fixedly connected to the top right side of the tabletop 1, and an operation panel 19 is fixedly connected to the top of the connecting rod 18 for operation. A protective shell 22 is fixedly connected to the bottom left side of the tabletop 1. The inside of the protective shell 22 is fixedly connected to the bottom of the motor 3 for fixation. A support block 20 is fixedly connected to the bottom right side of the tabletop 1, and a base plate 21 is fixedly connected to the bottom of the support block 20 for greater overall stability.

[0039] Specifically, a connecting rod 18 is fixedly connected to the top right side of the tabletop 1, and an operation panel 19 is fixedly connected to the top of the connecting rod 18 for convenient operation by the user. At the same time, to ensure the stability and safety of the equipment, a protective shell 22 is fixedly connected to the bottom left side of the tabletop 1. The inside of the protective shell 22 is fixedly connected to the bottom of the motor 3 to protect the motor 3 from external interference. In addition, to further enhance the stability and durability of the equipment, a support block 20 is also fixedly connected to the bottom right side of the tabletop 1, and a base plate 21 is fixedly connected to the bottom of the support block 20, thereby ensuring that the entire equipment remains stable during use.

[0040] Working principle: When testing is required, the tablets are first placed between the baffles 8 on the turntable 6, and then the motor 3 is started. At this time, the motor 3 drives the rotating rod 4 to rotate, and then the rotating rod 4 drives the turntable 6 to rotate. Since the baffles 8 are fixed on the fixed rod 7, the tablets will fall into the circular grooves 13 under the scraping action of the baffles 8. At this time, the electric push rod 11 is started by setting the value, and then the electric push rod 11 drives the push column 10 to move downward. Then the push column 10 drives the support plate 9 to move downward, and then the support plate 9 drives the extrusion column 12 to extrude downward, extruding the tablets and performing testing. This achieves the function of dispersing the tablets into each circular groove 13 through the rotation of the turntable 6 for hardness testing.

[0041] When disassembly is required, first rotate the clamping plate 203 outward, then the clamping plate 203 drives the magnetic head 204 to rotate outward. At this time, the clamping plate 203 drives the rotating cylinder 202 to rotate on the surface of the fixed cylinder 201. Then the magnetic head 204 will be attracted to the magnetic buckle 205. At this time, the spring 207 will spring upward, and the turntable 6 can be removed. When installation is required, the turntable 6 is placed back on the table 1. At this time, the spring 207 is squeezed to press against the limit rod 206. Then the clamping plate 203 is rotated back. At this time, the magnetic head 204 leaves the magnetic buckle 205, and the clamping plate 203 can lock the turntable 6 again, thus realizing the function of disassembling the turntable 6 for replacement.

[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 for detecting the hardness of multiple tablets, comprising a platform (1), characterized in that: A motor (3) is fixedly connected to the bottom left side of the tabletop (1). A rotating rod (4) is fixedly connected to the output end of the motor (3). A disc (5) is rotatably connected to the top of the rotating rod (4). A turntable (6) is rotatably connected to the top of the disc (5). A fixed rod (7) is rotatably connected to the top of the turntable (6). Multiple baffles (8) are fixedly connected to the front side of the outer wall of the fixed rod (7). A support plate (9) is slidably connected to the upper end of the outer wall of the fixed rod (7). A push column (10) is fixedly connected to the top of the support plate (9). An electric push rod (11) is fixedly connected to the top of the push column (10). A disassembly mechanism (2) is provided on the top of the tabletop (1). The disassembly mechanism (2) is used for installation and disassembly.

2. A tablet hardness tester for detecting the hardness of multiple tablets according to claim 1, characterized in that: The disassembly mechanism (2) includes a fixed cylinder (201). Multiple fixed cylinders (201) are fixedly connected to the top left end of the platform (1). A rotating cylinder (202) is slidably connected to the outer wall of the fixed cylinder (201). A clamping plate (203) is fixedly connected to the outer wall of the rotating cylinder (202). A magnetic suction head (204) is fixedly connected to the top of the clamping plate (203). The outer wall of the magnetic suction head (204) is slidably connected to a magnetic buckle (205). A limit rod (206) is fixedly connected to the top left side of the platform (1) near the middle. A spring (207) is slidably connected to the outer wall of the limit rod (206).

3. A tablet hardness tester for detecting the hardness of multiple tablets according to claim 1, characterized in that: The top of the turntable (6) is provided with multiple circular grooves (13), and the outer wall of the circular grooves (13) is slidably connected with extrusion columns (12). The top of the extrusion columns (12) is fixedly connected to the bottom of the support plate (9).

4. A tablet hardness tester for detecting the hardness of multiple tablets according to claim 1, characterized in that: A stop bar (14) is fixedly connected to the front side of the outer wall of the fixed rod (7), and a fixed head (15) is fixedly connected to the front side of the stop bar (14).

5. A tablet hardness tester for detecting the hardness of multiple tablets according to claim 1, characterized in that: Multiple support rods (16) are fixedly connected to the top left side of the tabletop (1) near the edge, and a fixing plate (17) is fixedly connected to the upper end of the outer wall of each of the multiple support rods (16).

6. A tablet hardness tester for detecting the hardness of multiple tablets according to claim 1, characterized in that: A connecting rod (18) is fixedly connected to the top right side of the tabletop (1), and an operation screen (19) is fixedly connected to the top of the connecting rod (18).

7. A tablet hardness tester for detecting the hardness of multiple tablets according to claim 1, characterized in that: A protective shell (22) is fixedly connected to the bottom left side of the platform (1), and the inside of the protective shell (22) is fixedly connected to the bottom of the motor (3).

8. A tablet hardness tester for detecting the hardness of multiple tablets according to claim 1, characterized in that: A support block (20) is fixedly connected to the bottom right side of the tabletop (1), and a base plate (21) is fixedly connected to the bottom of the support block (20).