A weighable tablet friability tester

By designing a telescopic rod and a rotating seat to drive the tilting of the loading box and the rotation of the stirring blades, the problem of needing to manually remove tablets in existing tablet testing instruments has been solved, realizing automated tablet friability testing and improving efficiency and accuracy.

CN224552993UActive Publication Date: 2026-07-24TIANJIN JINKE ZHIYUAN TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN JINKE ZHIYUAN TECHNOLOGY DEVELOPMENT CO LTD
Filing Date
2025-04-29
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing tablet friability testers require manual opening of the rotating disc when removing tablets, resulting in low work efficiency and incompatibility with automated production lines.

Method used

A weighable tablet friability tester was designed. It uses a telescopic rod to drive a slider and a rotating seat to achieve the flipping and fitting of the container. Combined with the rotation of the stirring blade, it automatically completes the placement, testing and removal of tablets. It is equipped with a quick-installation weight detector and display to simplify the operation process.

Benefits of technology

It enables rapid tablet loading and unloading, improving work efficiency, testing accuracy, and convenience, and is suitable for tablet quality inspection in automated production lines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to tablet detection technical field discloses a kind of tablet friability tester of weighing, including tester, the inside of the left and right side of tester is uniformly connected with slide rail, the side of two slide rails is uniformly slidably connected with slider, the bottom of two sliders is uniformly connected with telescopic link one, the top of the side of two slide rails is uniformly slidably connected with telescopic link two, the side of two telescopic links two is uniformly connected with rotating seat one, the side of two sliders is uniformly connected with rotating seat two.In the utility model, telescopic link drives slider to move, when descending, it is convenient to place tablet by turning over container one, after rising, it is adhered with container two, stirring blade rotates to let tablet collide and rub each other, after testing, container one is turned over and tablet is poured out, broken tablet is placed in weighing pan, so that it can be realized that tablet can be quickly put in and taken out, and work efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of tablet testing technology, and in particular to a weighable tablet friability tester. Background Technology

[0002] A weighable tablet friability tester is an instrument used to test the quality of tablets. It can simultaneously measure the friability and weight of tablets. After being subjected to wear and impact, the friability is assessed by detecting the weight loss of the tablets. The instrument consists of a drum, a drive unit, and a weighing device. A certain number of tablets are placed inside the drum, which is driven by the drive unit to rotate at a certain speed, causing the tablets to collide and rub against each other inside the drum. After a specified number of rotations, the weighing device accurately measures the weight change of the tablets, thereby calculating the friability.

[0003] In testing instruments, traditional manual tablet placement instruments cannot be integrated with automated production lines or batch sample processing. Especially in industrial quality inspection scenarios, the need for manual intervention becomes an efficiency bottleneck. Existing technology uses a rotating disk with multiple grooves at the sample inlet of the instrument, with each groove corresponding to a fixed number of tablets. A stepper motor drives the rotating disk to rotate, conveying the tablets sequentially to the drum or weighing module. However, in actual use, because of the rotating disk with multiple grooves, the tablets need to be manually opened to be removed, resulting in reduced work efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a weighable tablet friability tester, which aims to improve the problem of reduced work efficiency caused by the use of a rotating disk with multiple grooves in the prior art, which requires manual opening of the rotating disk to remove tablets.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a weighable tablet friability tester, comprising a tester, wherein slide rails are fixedly connected to the interior of both the left and right sides of the tester, sliders are slidably connected to the opposite sides of the two slide rails, telescopic rods are fixedly connected to the bottom of both sliders, telescopic rods are slidably connected to the top of both opposite sides of the two slide rails, rotating seats are fixedly connected to the opposite sides of both telescopic rods, rotating seats are fixedly connected to the opposite sides of both sliders, and a loading box is fixedly connected to the opposite sides of both rotating seats, loading boxes are fixedly connected to the top of both the left and right sides of the tester, stirring blades are rotatably connected to the middle of both the left and right sides of the tester, a weight detector is provided on the top of the tester, a weighing pan is fixedly connected to the top of the weight detector, a display is fixedly connected to the front left end of the tester, and an installation mechanism is provided on the top of the tester for quickly installing the weight detector.

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

[0007] The mounting mechanism includes a mounting plate, the bottom of which is fixedly connected to the inner top of the tester. The top of the tester has a mounting groove, the inner bottom of which is fixedly connected to the bottom of the mounting plate. The inner bottom of the mounting groove has multiple threaded holes. Bolts pass through the four corners of the top of the mounting plate, and the bottoms of the bolts are threaded to the inner bottom of the mounting groove. The bottom of the weighing pan is fixedly connected to two positioning pins, and the top of the weight detector has two positioning holes.

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

[0009] Multiple buttons are fixedly connected to the front right end of the tester, and all of the buttons are electrically connected to the display.

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

[0011] A lamp holder is fixedly connected to the top front side of the tester, and an indicator light is fixedly connected to the front side of the lamp holder.

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

[0013] The tester is fixedly connected to four corners at the bottom, and anti-slip sleeves are fixedly connected to the bottom of each of the support columns.

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

[0015] A washer is fixedly connected to the middle of the outer wall of the plurality of bolts, and the outer wall of the plurality of washers is designed to be rounded.

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

[0017] The top of the weighing pan is fixedly connected to multiple baffles, which are arranged at equal intervals.

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

[0019] Both slide rails are symmetrically designed, and both sliders are equidistantly connected to the opposite side of the slide rails.

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

[0021] 1. In this utility model, the telescopic rod drives the slider to move, causing the storage box to descend or rise. When descending, the storage box flips to facilitate the placement of tablets. When rising, it fits into the storage box. The stirring blade rotates, causing the tablets to collide and rub against each other to test the hardness. After the test, the storage box descends and flips again to pour out the tablets. Damaged tablets are placed on a weighing pan, and the weight detector measures the weight and transmits the information to the display. The brittleness is calculated by comparing the weights before and after the test, thus enabling the rapid placement and removal of tablets and improving work efficiency.

[0022] 2. In this utility model, during installation, the bolts are aligned with the threaded holes and rotated. The axial force of the thread engagement presses the mounting plate against the bottom of the mounting groove. Multiple bolts are distributed at the four corners of the mounting plate to form a uniform force support point, dispersing external forces to prevent loosening and deformation. When installing the weighing pan, it is aligned with the weight detector, and the positioning pin is inserted vertically into the positioning hole. The geometry of the pin hole is used to restrict horizontal movement, thereby achieving rapid installation of the weight detector. Attached Figure Description

[0023] Figure 1 This is a perspective view of a weighable tablet friability tester proposed in this utility model;

[0024] Figure 2 This is a front view of a weighable tablet friability tester proposed in this utility model;

[0025] Figure 3 This is a split view of the stirring blade of a weighable tablet friability tester proposed in this utility model;

[0026] Figure 4 This is an exploded view of the rotating base of a weighable tablet friability tester proposed in this utility model.

[0027] Figure 5 This is an exploded view of the positioning pin of a weighable tablet friability tester proposed in this utility model.

[0028] Legend:

[0029] 1. Tester; 2. Mounting mechanism; 201. Mounting slot; 202. Mounting plate; 203. Threaded hole; 204. Bolt; 205. Locating pin; 206. Locating hole; 3. Slide rail; 4. Slider; 5. Telescopic rod one; 6. Telescopic rod two; 7. Rotating seat one; 8. Rotating seat two; 9. Loading box one; 10. Loading box two; 11. Stirring blade; 12. Weight detector; 13. Weighing pan; 14. Display; 15. Button; 16. Lamp holder; 17. Indicator light; 18. Support column; 19. Anti-slip sleeve; 20. Gasket; 21. Baffle. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a weighable tablet friability tester, comprising a tester 1. Slide rails 3 are fixedly connected to the interior of both the left and right sides of the tester 1. Slider 4s are slidably connected to the opposite sides of the two slide rails 3. Telescopic rods 5 are fixedly connected to the bottom of each slider 4. The telescopic rods 5 extend and retract, causing the slider 4 to move up and down on the slide rails 3. Telescopic rods 6 are slidably connected to the top of the opposite sides of the two slide rails 3. Rotating seats 7 are fixedly connected to the opposite sides of the two telescopic rods 6. Rotating seats 8 are fixedly connected to the opposite sides of the two slider 4. A storage box 9 is fixedly connected to the opposite sides of the two rotating seats 8. The retraction of telescopic rods 5 causes the storage box 9 to descend, and the extension and retraction of telescopic rods 6 pushes the rotating seats 7 to the right, causing the storage box 9 to descend. The rotating seat 8 is flipped to facilitate the placement and removal of tablets. The top of the left and right sides of the tester 1 is fixedly connected to the loading box 10. The middle of the left and right sides of the tester 1 is rotatably connected to the stirring blade 11. When the telescopic rod 5 drives the loading box 9 to rise and fit against the loading box 10, the stirring blade 11 rotates to test the tablet hardness. The top of the tester 1 is equipped with a weight detector 12. The top of the weight detector 12 is fixedly connected to the weighing pan 13. The front left end of the tester 1 is fixedly connected to the display 14. After the test is completed, the broken tablets are placed on the weighing pan 13. The information is displayed on the display 14 by the weight detector 12, which can detect the lost weight and calculate the brittleness. The top of the tester 1 is equipped with an installation mechanism 2, which is used to quickly install the weight detector 12.

[0032] Specifically, slide rails 3 are fixedly installed on the left and right sides of the tester 1. Each slide rail 3 is slidably connected to a slider 4 on its outer side. A telescopic rod 5 is fixedly connected to the bottom of the slider 4. The extension and retraction of the telescopic rod 5 causes the slider 4 to move up and down on the slide rail 3. Telescopic rods 6 are slidably connected to the top of the outer sides of the two slide rails 3 respectively. A rotating seat 7 is connected to the outer side of the telescopic rod 6, while a rotating seat 8 is connected to the outer side of the slider 4. A storage box 9 is installed on the outer side of the rotating seat 8. When the telescopic rod 5 retracts, the storage box 9 descends accordingly. When the telescopic rod 6 extends or retracts, the rotating seat 7 moves to the right, thereby causing the storage box 9 to flip via the rotating seat 8, facilitating the placement and removal of tablets. The top of the left and right sides of the tester 1 are fixedly connected to... The second container 10 has a stirring blade 11 rotatably connected to its center. When the telescopic rod 5 drives the first container 9 to rise and fit into the second container 10, the stirring blade 11 starts to rotate to test the hardness of the tablets. The top of the tester 1 is equipped with a weight detector 12, above which a weighing pan 13 is fixedly connected. A display 14 is installed on the front left side of the tester 1. After the tablet test is completed, the broken tablets are placed on the weighing pan 13, and the weight detector 12 will detect their weight and display the relevant information on the display 14. By comparing the weight before and after the test, the weight loss of the tablets can be accurately calculated, and the brittleness of the tablets can be obtained. This improves the accuracy of the test and enhances the convenience of operation, providing a strong guarantee for tablet quality inspection.

[0033] Reference Figure 5 The mounting mechanism 2 includes a mounting plate 202. The bottom of the mounting plate 202 is fixedly connected to the top inner side of the tester 1. The top of the tester 1 has a mounting groove 201. The bottom inner side of the mounting groove 201 is fixedly connected to the bottom of the mounting plate 202. The bottom inner side of the mounting groove 201 has multiple threaded holes 203. Bolts 204 are passed through the four corners of the top of the mounting plate 202. By passing through the mounting plate 202 with the bolts 204, the mounting plate 202 is installed at the bottom of the mounting groove 201 by rotating the inside of the threaded holes 203. The bottom of the multiple bolts 204 is threadedly connected to the bottom inner side of the mounting groove 201. The bottom of the weighing pan 13 is fixedly connected with two positioning pins 205. The top of the weight detector 12 has two positioning holes 206. The weighing pan 13 is inserted into the positioning holes 206 through the positioning pins 205.

[0034] Specifically, the bottom of the mounting plate 202 is securely connected to the top inner side of the tester 1. The top of the tester 1 has a mounting groove 201, and the bottom inner side of the mounting groove 201 is tightly connected to the bottom of the mounting plate 202. The bottom inner side of the mounting groove 201 also has multiple threaded holes 203. Bolts 204 are inserted through the four corners of the top of the mounting plate 202. During installation, the bolts 204 are inserted through the mounting plate 202 and screwed into the threaded holes 203. In this way, the mounting plate 202 is securely installed at the bottom of the mounting groove 201. The bottoms of the multiple bolts 204 are threadedly connected to the bottom inner side of the mounting groove 201, ensuring the stability of the installation. The bottom of the weighing pan 13 is fixedly connected with two positioning pins 205, while the top of the weight detector 12 has two positioning holes 206. The weighing pan 13 can be accurately installed and positioned by simply inserting the positioning pins 205 into the positioning holes 206.

[0035] Reference Figure 1 and Figure 2 Multiple buttons 15 are fixedly connected to the front right end of the tester 1. All buttons 15 are electrically connected to the display 14 for controlling the device. A lamp holder 16 is fixedly connected to the front top of the tester 1. An indicator light 17 is fixedly connected to the front of the lamp holder 16 to emit light during testing. Support columns 18 are fixedly connected to the four corners of the bottom of the tester 1. Anti-slip sleeves 19 are fixedly connected to the bottom of the multiple support columns 18 to prevent the device from moving.

[0036] Specifically, multiple buttons 15 are fixedly installed on the front right side of the tester 1. All buttons 15 are electrically connected to the display 14. The device can be controlled by operating the buttons 15, which facilitates parameter setting and function switching by the operator. A lamp holder 16 is provided on the front top, and an indicator light 17 fixedly connected to the front of the lamp holder will emit light during the test to indicate the operating status of the device. Support columns 18 are installed at the four corners of the bottom of the tester 1. Each support column 18 is fixedly connected to the bottom of the anti-slip sleeve 19. By increasing the friction with the contact surface, the device is effectively prevented from moving during the test, ensuring stable operation of the instrument.

[0037] Reference Figure 3 and Figure 5 A washer 20 is fixedly connected to the middle of the outer wall of multiple bolts 204. The outer walls of multiple washers 20 are all rounded to prevent the bolts 204 from being tightened. Multiple baffles 21 are fixedly connected to the top of the weighing pan 13. The multiple baffles 21 are all arranged at equal intervals to prevent tablets from falling. The two slide rails 3 are both symmetrically designed. The two sliders 4 are equidistantly slidably connected to the opposite side of the slide rails 3.

[0038] Specifically, a washer 20 is fixedly connected to the middle of the outer wall of multiple bolts 204, and the outer wall of the washer 20 is designed with a smooth surface, which can effectively prevent the bolts 204 from being tightened too much. This facilitates the disassembly and maintenance of the mounting plate 202 and improves the stability of the connection part through the buffering effect of the washer 20. Multiple baffles 21 are arranged at equal intervals on the top of the weighing pan 13. Their function is to prevent the tablets after testing from falling during the weighing process and to ensure the accuracy of weight detection. The two slide rails 3 adopt a symmetrical design, and the two sliders 4 are equidistantly connected to the opposite side of the slide rails 3, making the lifting process of the loading box 9 more stable, ensuring uniform force during tablet testing, and further optimizing the performance of the instrument.

[0039] Working principle: The slide rails 3 fixed inside the left and right sides of the tester 1 provide a sliding track for the slider 4. When the telescopic rod 5 retracts, it drives the slider 4 connected to it to move downward on the slide rail 3. Since the outer side of the slider 4 is connected to the container 9 through the rotating seat 8, the container 9 descends accordingly. The telescopic rod 6 extends and retracts, pushing the outer rotating seat 7 to move to the right. With the help of the rotating seat 8, the container 9 is flipped over, making it easy to place the tablets to be tested into the container 9. After the tablets are placed, the telescopic rod 5 extends, driving the slider 4 to move upward on the slide rail 3. The container 9 rises accordingly until it is in contact with the container 10 fixedly connected to the top of the left and right sides of the tester 1. The stirring blade 11 rotatably connected in the middle of the tester 1 begins to rotate, and the tablets in the container are stirred by the stirring blade. Under the action of 11, the tablets collide and rub against each other, simulating the external force that tablets are subjected to during actual transportation and storage, in order to test the hardness of the tablets. After the rotation test of the stirring blade 11, the telescopic rod 5 retracts again to lower the loading box 9, and the telescopic rod 6 pushes the loading box 9 to flip over, pouring out the tablets after the test. The operator places the broken tablets on the weighing pan 13 fixedly connected above the weight detector 12 on the top of the tester 1. The weight detector 12 will accurately detect the weight of the broken tablets and transmit this weight information to the display 14 installed on the front left side of the tester 1 for display. By comparing the total weight of the tablets before the test and the weight of the broken tablets after the test, the weight loss of the tablets can be accurately calculated, and then the brittleness of the tablets can be obtained according to the relevant formula.

[0040] Furthermore, the mounting groove 201 on the top of the tester 1 provides a precise positioning space for the mounting plate 202. Its inner bottom fits against the bottom of the mounting plate 202, ensuring that the mounting plate 202 is fixed in the horizontal direction. The bolt 204 is aligned with the threaded hole 203. By rotating the bolt 204, its bottom is gradually screwed into the threaded hole 203. The axial force generated by the thread engagement is used to press the mounting plate 202 tightly against the bottom of the mounting groove 201. Multiple bolts 204 are distributed at the four corners of the mounting plate 202, forming a uniform force support point, dispersing the external force on the mounting plate 202, and avoiding loosening or deformation caused by single-point force. The weighing pan 13 is aligned with the weight detector 12, and the positioning pin 205 is vertically inserted into the positioning hole 206. The geometry of the pin and the hole restricts the movement of the weighing pan 13 in the horizontal direction, ensuring that its center is aligned with the sensing area of ​​the weight detector 12.

[0041] 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 weighable tablet friability tester, comprising a tester (1), characterized in that: The tester (1) has slide rails (3) fixedly connected to the inside of both its left and right sides. Slider blocks (4) are slidably connected to the opposite sides of the two slide rails (3). Telescopic rods (5) are fixedly connected to the bottom of each of the two sliders (4). Telescopic rods (6) are slidably connected to the top of the opposite sides of the two slide rails (3). Rotating seats (7) are fixedly connected to the opposite sides of the two telescopic rods (6). Rotating seats (8) are fixedly connected to the opposite sides of the two sliders (4). The tester (1) is connected to a first loading box (9), and the top of the left and right sides of the tester (1) is fixedly connected to a second loading box (10). The middle of the left and right sides of the tester (1) is rotatably connected to a stirring blade (11). The top of the tester (1) is equipped with a weight detector (12), and the top of the weight detector (12) is fixedly connected to a weighing pan (13). The left front end of the tester (1) is fixedly connected to a display (14). The top of the tester (1) is equipped with an installation mechanism (2), which is used to quickly install the weight detector (12).

2. The weighable tablet friability tester according to claim 1, characterized in that: The mounting mechanism (2) includes a mounting plate (202), the bottom of which is fixedly connected to the top inner side of the tester (1). The top of the tester (1) has a mounting groove (201), the bottom inner side of which is fixedly connected to the bottom of the mounting plate (202). The bottom inner side of the mounting groove (201) has multiple threaded holes (203). Bolts (204) are inserted through the four corners of the top of the mounting plate (202). The bottom of the multiple bolts (204) is threadedly connected to the bottom inner side of the mounting groove (201). The bottom of the weighing pan (13) is fixedly connected to two positioning pins (205). The top of the weight detector (12) has two positioning holes (206).

3. The weighable tablet friability tester according to claim 1, characterized in that: The tester (1) has multiple buttons (15) fixedly connected to the front right end, and all of the buttons (15) are electrically connected to the display (14).

4. The weighable tablet friability tester according to claim 1, characterized in that: A lamp holder (16) is fixedly connected to the top front side of the tester (1), and an indicator light (17) is fixedly connected to the front side of the lamp holder (16).

5. A weighable tablet friability tester according to claim 1, characterized in that: The tester (1) has support columns (18) fixedly connected at the four corners of its bottom, and anti-slip sleeves (19) fixedly connected to the bottom of each of the support columns (18).

6. The weighable tablet friability tester according to claim 2, characterized in that: A washer (20) is fixedly connected to the middle of the outer wall of the plurality of bolts (204), and the outer wall of the plurality of washer (20) is rounded.

7. The weighable tablet friability tester according to claim 1, characterized in that: The top of the weighing pan (13) is fixedly connected to multiple baffles (21), and the multiple baffles (21) are arranged at equal intervals.

8. A weighable tablet friability tester according to claim 1, characterized in that: Both slide rails (3) are designed symmetrically, and both sliders (4) are equidistantly connected to the opposite side of the slide rails (3).