Defective tablet separating device in tablet production

Abstract

The invention aims to provide a defective tablet separating device in tablet production, which can quickly detect the quality of tablets, separate defective tablets and detect the hardness of the tablets by sampling in real time, and comprises a weighing slide way, the device further comprises a separation slideway. The separation slide way rotating mechanism is used for rotating the separation slide way, so that the separation slide way is sequentially in a first inclined state, a second inclined state and a third inclined state from top to bottom; the separation slide way is in a third inclined state, and the tablets enter the spot check slide way; the detection table is located at the tail of the sampling inspection slide way, the tablets passing through the sampling inspection slide way slide onto the detection table, and the pressure loading system is arranged above the detection table and applies pressure to the tablets on the detection table. One separation slide way is used for controlling, so that the separation of defective tablets and the sampling of tablets to be detected can be quickly realized; and the detection of quality and hardness can be simultaneously realized through one detection table.

Description

Technical Field

[0001] The present invention relates to the technical field of pharmaceutical tablets, in particular to a device for weighing, sorting and separating defective tablets in tablet production. Background Art

[0002] During the tablet production process, factors such as instrument accuracy, material mixing uniformity, fluctuations in compression process parameters, and human error inevitably produce defective tablets, such as broken and cracked tablets, tablets that do not meet weight standards, and tablets with abnormal thickness. The presence of defective tablets not only affects product quality and efficacy stability, but can also reduce patient confidence due to cosmetic defects and even pose medical risks. Therefore, efficient and precise separation of defective tablets is a critical step in ensuring product quality in the tablet production process.

[0003] Tablet weight is an important part of tablet screening and testing. Uneven weight may lead to unstable drug efficacy and even affect patient health. Currently, in the production process of tablets, online detection mechanisms are used to measure the weight of tablets in real time.

[0004] The hardness test is carried out by random sampling, where a certain number of tablets are taken from the tablets collected during production for testing. The quality inspection system adopts online dynamic detection and then corrects the data through dynamic data. There are many variable factors involved, and the measurement error is relatively large. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a defective tablet separation device in tablet production, which can quickly perform quality inspection on tablets and separate defective products, and can also realize real-time sampling and detection of tablet hardness, and perform static weight detection on the tablets tested for hardness, and collect accurate tablet production data so as to make timely adjustments to the production equipment.

[0006] The solution is a device for separating defective tablets in tablet production, comprising a weighing slide; an online weighing sensor is installed at the lower portion thereof, and a separation slide; a separation slide rotation mechanism for rotating the separation slide so that the separation slide is positioned in a first tilted state, a second tilted state, and a third tilted state from top to bottom; a transition slide disposed between the separation slide and the weighing slide; a material guide slide disposed at the tail end of the separation slide, wherein the separation slide is in the first tilted state, tablets pass through the separation slide into the material guide slide, and a tablet collection box is provided at the tail end of the material guide slide; and a fragment collection box located below the separation slide, wherein the separation slide is in the second tilted state, tablets slide along the separation slide into the fragment collection box.

[0007] The sampling chute is located below the separation chute and between the weighing chute and the fragment collection box. The sampling chute and the separation chute are arranged crosswise. The separation chute is in the third inclined state, and the tablets enter the sampling chute; the testing table is located at the tail of the sampling chute, and the tablets passing through the sampling chute slide onto the testing table. The sampling chute is inclined downward toward the testing table. The pressure loading system is arranged above the testing table to apply pressure to the tablets on the testing table; the static weighing sensor is arranged below the testing table; the pressure-bearing component is between the testing table and the static weighing sensor, so that the testing table is in a hardness detection state and a weight detection state from top to bottom. When the testing table is in the hardness detection state, the pressure-bearing component bears the force transmitted by the testing table. When the testing table is in the weight detection state, the static weighing sensor bears the force transmitted by the testing table to perform random inspection of tablets.

[0008] Preferably, it also includes a sorting frame and a detection frame, the sorting frame includes a support member located at the upper part, the weighing slide, transition slide, separation slide, and material guide slide are installed on the sorting frame in sequence and tilted downward, the transition slide is detachably installed on the support member, the detection platform, static weighing sensor and pressure-bearing component are installed on the detection frame, and the online weighing sensor is fixed on the sorting frame.

[0009] Preferably, the slide rotation mechanism includes a separation electric telescopic rod fixed to the lower part of the support member, a separation rack is installed at the end of the telescopic rod of the separation electric telescopic rod, and the separation rack is engaged with a separation gear. A separation rotating shaft is fixed to the lower part of the separation slide, and the separation gear is installed on the separation rotating shaft. When the telescopic rod is fully retracted, the separation slide is in a first inclined state; when the telescopic rod is extended to half of the total stroke, the separation slide is in a second inclined state; when the telescopic rod is fully extended, the separation slide is in a third inclined state.

[0010] Preferably, a detection shaft is provided at the lower part of the detection table, and the pressure-bearing assembly includes a conical carrier fixed in the middle of the detection shaft, the small end of the carrier faces downward and is coaxially arranged with the detection shaft, and the detection shaft is coaxially sleeved with a support body with a cylindrical hole in the middle, and the lower end of the carrier enters the circumferential hole, and a driving plate is fixed on both opposite sides of the support body, and guide rods are provided on the other two sides. The lower part of the driving plate is provided with a first inclined surface, and the lower part of the driving plate is provided with a driving block, and the upper part of the driving block is provided with a second inclined surface with the same inclination angle as the first inclined surface, and the first inclined surface is in sliding contact with the second inclined surface. A driving rod is installed on one side of the driving block, and the two drives are fixed with the same driving connecting piece, a driving cylinder and a detection guide on the detection frame, and the guide rod passes downward through the detection guide and is slidably connected to the detection guide, and the cylinder rod of the driving cylinder is fixedly connected to the driving connecting piece.

[0011] Preferably, the static weighing sensor is located below the support body, the detection platform is in a hardness detection state, the carrier is in contact with the support body, and the detection shaft is separated from the static weighing sensor. When the detection platform is in a weight detection state, the detection shaft is in contact with the static weighing sensor.

[0012] Preferably, an air collecting hood is provided on the upper part of the testing platform, and a vacuum cleaner is connected to the upper part of the air collecting hood through an air suction pipe. A air hood frame is fixed on the upper part of the air collecting hood, and the air hood frame is connected to an air hood cylinder fixed on the upper part of the testing frame, and the air hood cylinder drives the air collecting hood to move horizontally.

[0013] Preferably, the pressure loading system includes a pressurizing cylinder and a pressure block. The pressure block is installed on the cylinder rod of the pressurizing cylinder. A detection pressure sensor for detecting pressure is provided between the pressure block and the cylinder rod of the pressurizing cylinder. The pressurizing cylinder is installed on the upper part of the detection frame. The pressure block is located above the detection platform and can move up and down driven by the pressurizing cylinder.

[0014] Preferably, a gathering cylinder is provided above the middle of the detection platform.

[0015] Preferably, three dial pins are evenly distributed along the circumference of the cylinder rod shaft of the pressurized cylinder above the detection platform, and a dial shaft is fixed to the end of the wave pin, which passes downward through the detection platform and is rotatably connected to the detection platform. A planetary gear is installed at the lower end of the dial shaft, and an inner gear ring is provided outside the planetary gear. The three planetary gears are all located in the inner gear ring and are meshed with the inner gear ring. An outer gear ring is coaxially provided on the outside of the inner gear ring. A cylindrical shaft is coaxially sleeved on the detection shaft, and the lower part of the cylindrical shaft is fixed to the detection frame through a cylindrical shaft bracket. The planetary carrier, the toggle shaft is rotatably mounted on the planetary carrier, a gear ring frame is fixed to the lower part of the inner gear ring, the gear ring frame is mounted on the cylindrical shaft and is coaxially rotatably connected to the cylindrical shaft, the outer gear ring is meshingly connected with a toggle rack, one end of the toggle rack is provided with a toggle electric telescopic rod mounted on the detection frame, the telescopic rod of the toggle electric telescopic rod is fixedly connected to the toggle rack, three toggle slots are provided on the gathering cylinder, and the toggle slots correspond to the toggle needles one by one, which can ensure that the toggle needle rotates through to complete the adjustment of the position of the tablet to be detected.

[0016] The beneficial effects of the present invention are as follows: through the control of a separation slide, defective tablets can be quickly separated, and tablets to be tested can be sampled; the hardness, appearance and static quality of tablets can be automatically tested, data can be collected in real time, and the operation of the equipment can be monitored; by comparing the weight measured online by the weighing slide and the static quality of the random inspection, problems in the quality inspection of the weighing slide can be discovered in time, and serious consequences caused by inaccurate quality control of tablets can be prevented; through a testing table, quality and hardness tests can be simultaneously achieved, and the appearance of tablets can be tested through a visual recognition system, which simplifies the testing process, realizes automated testing, and improves testing efficiency; a dialing needle mechanism is provided to gather the fallen tablets to the center of the testing table to ensure testing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 For the present invention Figure 1 Schematic top view of .

[0019] Figure 3 For the present invention Figure 1 Schematic diagram of the three-dimensional structure.

[0020] Figure 4 This is a schematic diagram of the installation structure of the separation slideway of the present invention.

[0021] Figure 5 For the present invention Figure 4 Schematic diagram of the top view.

[0022] Figure 6 It is a three-dimensional schematic diagram of the separation slideway rotation mechanism of the present invention.

[0023] Figure 7 It is a structural diagram of the sampling slide and detection system of the present invention.

[0024] Figure 8 For the present invention Figure 7 Schematic top view of .

[0025] Figure 9 For the present invention Figure 7 3D schematic diagram of .

[0026] Figure 10 It is a three-dimensional schematic diagram of the cooperation between the pressure loading system and the testing platform of the present invention.

[0027] Figure 11 Schematic diagram of the tablet shifting and adjusting mechanism of the present invention.

[0028] Figure 12 For the present invention Figure 11 3D schematic diagram Figure 1 .

[0029] Figure 13 For the present invention Figure 11 3D schematic diagram Figure 2 . . DETAILED DESCRIPTION

[0030] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0031] Depend on Figures 1 to 13 A device for separating defective tablets in tablet production is provided, comprising a weighing slide 1; an online weighing sensor 2 is installed at the lower part thereof, and is characterized in that it also comprises a separation slide 3;

[0032] The separation slide rotating mechanism is used to rotate the separation slide 3 so that the separation slide 3 is in a first inclined state, a second inclined state, and a third inclined state from top to bottom;

[0033] A transition slide 4 is provided between the separation slide 3 and the weighing slide 1;

[0034] The material guide chute 5 is provided at the tail of the separation chute 3. The separation chute 3 is in a first inclined state. Tablets enter the material guide chute 5 through the separation chute 3. A tablet collection box is provided at the tail of the material guide chute.

[0035] The fragment collection box 6 is located below the separation slide 3. The separation slide 3 is in the second inclined state, and the tablets slide along the separation slide 3 into the fragment collection box 6;

[0036] The sampling chute 7 is located below the separation chute 3 and between the weighing chute 1 and the fragment collection box 6. The sampling chute 7 is arranged crosswise with the separation chute 3. The separation chute 3 is in the third inclined state, and the tablets enter the sampling chute 7;

[0037] The inspection table 8 is located at the tail end of the sampling chute 7, and the tablets passing through the sampling chute 7 slide onto the inspection table 8, and the sampling chute 7 is inclined downward toward the inspection table 8;

[0038] A pressure loading system is provided above the testing platform 8 to apply pressure to the tablets on the testing platform 8;

[0039] The static weighing sensor 9 is arranged below the testing platform 8; the static weighing sensor weighs the tablets to be sampled on the testing platform.

[0040] The pressure-bearing component is located between the testing platform 8 and the static weighing sensor 9, so that the testing platform 8 is in a hardness detection state and a weight detection state from top to bottom. When the testing platform 8 is in the hardness detection state, the pressure-bearing component bears the force transmitted by the testing platform 8. When the testing platform 8 is in the weight detection state, the static weighing sensor 9 bears the force transmitted by the testing platform 8 to perform random tablet inspections.

[0041] The produced tablets slide down one by one after passing through the adjustment mechanism and the adjustment slide, and slide into the weighing slide 1 in turn. The weighing slide 1 can only allow one tablet to pass through at a time. The tablet passes through the weighing slide 1, and the online weighing sensor 2 records its value, and then the parameter is corrected by the data processing system. Then it is compared with the set value. If there are tablets that exceed the set value, that is, tablets that do not meet the quality requirements, the central processing system controls the slide rotation mechanism to drive the separation slide 3 to rotate into the second inclined state. At this time, the tablets that do not meet the requirements enter the fragment collection box 6 along the separation slide 3. According to the number of random inspections required, the time interval for the separation slide 3 to enter the third inclined state is set. When the separation slide 3 enters the third inclined state, the tablet passes through the separation slide 3 to enter the random inspection slide 7, and then enters the inspection platform 8 through the random inspection slide 7. Static quality inspection is first carried out, and then the hardness of the tablet to be tested is completed under the support of the pressure-bearing component. The time interval for the separation slide to enter the third inclined state must be greater than the time required for the tablet to be tested to complete the weight and hardness test. After the test of one tablet is completed, the separation slide can be started again to enter the third inclined state to complete the test of the next tablet. The time interval required for the test station 8 to complete a weight and hardness test and to clean the test station 8 is 30-80 seconds. The tablet quality data collected by the test station 8 is the difference between the weight of the tablet to be tested after entering the test station and before the tablet enters the test station. The static mass of the tablet to be tested is then obtained, and the static mass of the tablet to be tested is compared with the dynamic mass of the tablet recorded by the weighing slide 1. The numerical difference between the two is recorded. When the numerical difference between the two exceeds the allowable error range, the equipment needs to be repaired.

[0042] The weighing chute 1, transition chute 4, and separation chute 3 can be arranged in parallel. By operating multiple weighing chutes 1 in parallel, multiple separation chutes 3 are controlled to sort tablets. After separation, the tablets enter the same sampling chute 7 and the same fragment collection box 6, thereby improving the tablet sorting efficiency.

[0043] It also includes a sorting frame 10 and a detection frame 11. The sorting frame 10 includes a support member 12 located at the top. The weighing chute 1, transition chute 4, separation chute 3, and material guide chute 5 are installed on the sorting frame 10 in an inclined downward direction in sequence. The transition chute 4 is detachably installed on the support member 12. The detection table 8, static weighing sensor 9, and pressure-bearing assembly are installed on the detection frame 11. The online weighing sensor 2 is fixed on the sorting frame 10. The cross-sections of the weighing chute 1, transition chute 4, and separation slide are all U-shaped structures. When the separation chute 3 is in the first inclined state, the bottom surfaces of the three are located in the same plane, which makes it easier for the tablets to pass through each chute without obstruction. When replacing different tablets, the weighing chute 1, transition chute 4, and separation chute 3 can be disassembled and cleaned to prevent different tablets from contaminating each other and affecting the efficacy of the medicine. The cross section of the supporting member is a U-shaped structure, and the transition slide is fixed between the two supporting members. When there are multiple transition slides, the transition slides and the supporting members are arranged in sequence at intervals.

[0044] The slide rotation mechanism includes a separation electric telescopic rod 13 fixed to the lower portion of the support member 12. A separation rack 14 is mounted at the end of the telescopic rod 13, which engages a separation gear 15. A separation shaft 16 is fixed to the lower portion of the separation slide 3, and the separation gear 15 is mounted on the separation shaft 16. When the telescopic rod is fully retracted, the separation slide 3 is in a first tilted state; when the telescopic rod is extended halfway through its total stroke, the separation slide 3 is in a second tilted state; and when the telescopic rod is fully extended, the separation slide 3 is in a third tilted state. By controlling the extension length of the separation electric telescopic rod 13, the tilted state of the separation slide 3 is controlled, thereby completing the separation of defective tablets and the separation of tablets for sampling and testing. Specifically, when the separation electric telescopic rod 13 is halfway extended, it drives the separation rack 14 to move, thereby driving the separation gear 15 to rotate, and then driving the separation slide 3 to rotate to the second tilted state via the separation shaft 16. When the separation electric telescopic rod 13 is fully extended, the separation slide 3 rotates to the third tilted state. When defective tablets appear, the separation slide 3 rotates to the second inclined state. After the next tablet is weighed online, if the quality is normal, the separation slide 3 quickly enters the first inclined state, and the tablet slides to the separation slide 3 to complete the corresponding operation. When a tablet sample needs to be taken for further testing, the tablet is weighed online, and the separation slide 3 enters the third inclined state. Before the tablet to be tested enters the separation slide, the separation slide 3 completes the operation, and then the tablet enters the sampling slide 7 along the third separation slide 3.

[0045] The lower part of the detection platform 8 is provided with a detection shaft 17, and the pressure bearing assembly includes a truncated cone-shaped carrier 18 fixed in the middle of the detection shaft 17, the small end of the carrier 18 is downward and coaxially arranged with the detection shaft 17, and the detection shaft 17 is coaxially sleeved with a support body 19 with a cylindrical hole in the middle. The lower end of the carrier 18 enters the circumferential hole, and a driving plate 20 is fixed on both opposite sides of the support body 19, and a guide rod 21 is provided on the other two sides. The two driving plates 20 are symmetrically arranged, and the lower part of the driving plate 20 is provided with a first Inclined surface, a driving block 22 is provided at the lower part of the driving plate 20, and the upper part of the driving block 22 is provided on a second inclined surface with an inclination angle consistent with that of the first inclined surface. The first inclined surface is in sliding contact with the second inclined surface. A driving rod is installed on one side of the driving block 22. The two drives are fixed with the same driving connector 41. The detection frame 11 drives the cylinder 23 and the detection guide 24. The guide rod 21 passes downward through the detection guide 24 and is connected to the detection guide 24 in an up and down sliding manner. The cylinder rod of the driving cylinder is fixedly connected to the driving connector 41. The detection guide 24 is provided with a guide hole that cooperates with the guide rod 21. The guide rod 21 extends into the guide hole and is connected to the detection guide 24 in an up and down sliding manner, thereby limiting the support body 19 to only be able to move up and down. The second inclined surface is tilted upward in the direction of the driving cylinder 23.

[0046] The static weighing sensor 9 is located below the support body 19, the detection platform 8 is in the hardness detection state, the carrier 18 is in contact with the support body 19, and the detection shaft 17 is separated from the static weighing sensor. When the detection platform 8 is in the weight detection state, the detection shaft 17 is in contact with the static weighing sensor 9.

[0047] The cylinder rod of the driving cylinder 23 extends, and the driving block 22 moves. Through the action of the second inclined surface and the first inclined surface, the driving plate 20 drives the support body 19 upward, and then drives the detection shaft 17 upward through the carrier 18, thereby achieving the separation of the detection shaft 17 from the static weighing sensor 9. At this time, the hardness pressure test of the tablet on the testing table 8 can be performed. When it is necessary to test the weight of the tablet to be tested, the cylinder rod of the driving cylinder 23 retracts, and the driving block 22 moves toward the driving cylinder 13. Under the action of gravity, the driving plate 20 and the support body 19 also move downward, so that the support body 19 and the carrier 18 are separated, and the detection shaft 17 contacts the static weighing sensor 9, and the tablet quality can be tested.

[0048] In order to remove the tablets crushed during the hardness test in a timely manner and reduce the manual removal process, an air hood 25 is provided on the upper part of the testing platform 8. A vacuum cleaner is connected to the upper part of the air hood 25 through an air suction pipe. A hood frame 26 is fixed to the upper part of the air hood 25. The hood frame 26 is connected to a hood cylinder 27 fixed to the upper part of the testing frame 11. The hood cylinder 17 drives the air hood 25 to move horizontally. The hood cylinder 27 drives the air hood 25 to move so that the hood is in a working state and an idle state. When the air hood 25 is in the working state, it is located on the upper part of the testing platform 8 and can suck away the crushed tablet debris on the testing platform 8 under the action of the vacuum cleaner, keeping the testing platform 8 clean and reducing the impact of tablet residues on the accuracy of the next sampling test. When the hood cylinder 27 drives the air hood 25 to move to the idle state, the air hood does not affect the pressure loading system to perform hardness testing on the tablets on the workbench.

[0049] The pressure-loading system includes a pressurizing cylinder 28 and a pressure block 29. The pressure block 29 is mounted on the cylinder rod of the pressurizing cylinder 28. A pressure sensor for detecting pressure is located between the pressure block 29 and the cylinder rod of the pressurizing cylinder 28. The pressurizing cylinder 28 is mounted on the upper portion of the testing frame 11. The pressure block 29 is located above the testing platform 8 and can move up and down driven by the pressurizing cylinder 28. The pressurizing cylinder 28 drives the pressure block 29 downward, pressing against the tablet to be tested on the testing platform 8, applying pressure to the tablet to be tested. The pressure sensor then records the applied pressure and the pressure when the tablet breaks, allowing data collection and analysis.

[0050] To facilitate the smooth sliding of tablets to be tested into the center of the testing platform 8, a gathering cylinder 30 is provided above the center of the testing platform 8. Tablets to be tested slide down the random inspection chute 7 and fall onto the testing platform 8. The gathering cylinder 30 is provided so that the tablets to be tested fall into the gathering cylinder 30, thereby concentrating them more closely in the center of the testing platform 8. To facilitate the entry of tablets falling from the separation chute into the random inspection chute, the random inspection chute is widened below the separation chute and then narrows in width at the transition point. This also helps to better gather the tablets to be tested in the center of the testing platform.

[0051] In order to focus the tablet to be tested on the central position of the testing platform 8, three dial pins 31 are evenly distributed along the circumference of the cylinder rod axis of the pressurizing cylinder 28 above the testing platform 8, and a dial shaft 32 is fixed to the end of the wave needle. The dial shaft 32 passes downward through the testing platform 8 and is rotatably connected to the testing platform 8. A planetary gear 33 is installed at the lower end of the dial shaft 32, and an inner gear ring 34 is provided outside the planetary gear 33. The three planetary gears 33 are all located in the inner gear ring 34 and are all meshed with the inner gear ring 34. An outer gear ring 35 is coaxially provided on the outside of the inner gear ring 34. A cylindrical shaft 36 is coaxially sleeved on the testing shaft 17. The lower part of the cylindrical shaft 36 is fixed to the testing frame through a cylindrical shaft bracket. A planetary carrier 37 is fixed on the shaft 36, and the toggle shaft 32 is rotatably mounted on the planetary carrier 37. A gear ring frame 38 is fixed to the lower part of the inner ring gear 34, and the gear ring frame 38 is mounted on the cylindrical shaft 36 and is coaxially rotatably connected to the cylindrical shaft 36. The outer ring gear 35 is meshed with a toggle rack 39, and one end of the toggle rack 39 is provided with a toggle electric telescopic rod 40 mounted on the detection frame 11. The telescopic rod of the toggle electric telescopic rod 40 is fixedly connected to the toggle rack 39. Three toggle grooves 3001 are provided on the gathering cylinder 30, and the toggle grooves 3001 correspond one-to-one to the toggle needle 31, which can ensure that the toggle needle 31 rotates through to complete the adjustment of the position of the tablet to be detected.

[0052] Tablets that slide down the sampling slide 7 onto the testing table 8 cannot be accurately positioned in the center of the testing table 8, and thus cannot be aligned with the center of the pressure block 29. A visual recognition device is provided above the testing table 8 to detect the tablet's appearance and structure and accurately record its dimensions. Once the visual recognition device detects that a tablet has landed on the testing table 8, it activates the electric telescopic lever 40 to extend and retract. As the electric telescopic lever 40 extends, it drives the outer ring gear 35 to rotate, which in turn drives the planetary gear 33 via the inner ring gear 34. This in turn drives the free end of the shifting pin 31 toward the center of the testing table 8 via the shifting shaft 32. With the action of the three shifting pins 31, the tablet to be tested is positioned in the center of the testing table 8. The electric telescopic lever 40 is then retracted, and the three shifting pins 31 rotate away from the center of the testing table 8, completing the reset and ready for further operation. After the tablet to be tested falls onto the testing table and is reset to the center of the testing table under the action of the dial needle, the visual recognition system first detects the appearance of the tablet to be tested and collects the corresponding appearance data. At this time, the detection shaft 17 contacts the detection weighing sensor to collect the mass and quantity of the tablet; then, driven by the driving cylinder 23, the driving block and the driving plate cause the support body to drive the carrier body upward, thereby causing the detection shaft to separate from the detection weighing sensor, and then under the action of the pressurizing cylinder 28, the test pressure block is pressed toward the testing table to perform hardness testing on the tablet to be tested thereon. After the hardness test is completed, the pressurizing cylinder drives the pressure block to reset, and then the wind collecting hood is driven by the wind hood cylinder 27 to enter the upper center of the testing table and begin to adsorb and remove tablet debris on the testing table. After this operation is completed, the wind collecting hood is reset, and then the driving cylinder 23 drives the support body to reset, thereby causing the detection shaft to contact the detection weighing sensor to complete the detection of the next tablet. Driven by the driving cylinder, the support body moves upward with a displacement of less than 5 mm. In order to ensure that the moving needle maintains a small distance from the detection table, the moving needle can move the shaft up and down to connect, that is, it can ensure that the moving shaft drives the moving needle to rotate, and can also move up and down with the detection shaft and the detection table, so that the moving needle can move the tablets to the center of the detection table.

[0053] The beneficial effects of the present invention are as follows: through the control of a separation slide, defective tablets can be quickly separated, and tablets to be tested can be sampled; the hardness, appearance and static quality of tablets can be automatically tested, data can be collected in real time, and the operation of the equipment can be monitored; by comparing the weight measured online by the weighing slide and the static quality of the random inspection, problems in the quality inspection of the weighing slide can be discovered in time, and serious consequences caused by inaccurate quality control of tablets can be prevented; through a testing table, quality and hardness tests can be simultaneously achieved, and the appearance of tablets can be tested through a visual recognition system, which simplifies the testing process, realizes automated testing, and improves testing efficiency; a dialing needle mechanism is provided to gather the fallen tablets to the center of the testing table to ensure testing accuracy.

[0054] The embodiments described above do not limit the scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by those skilled in the art should be included in the scope of protection determined by the claims of the present invention.

Claims

1. A device for separating defective tablets in tablet production, comprising a weighing slideway (1); an online weighing sensor (2) is installed at the lower part thereof, characterized in that: It also includes a separation slide (3); a separation slide rotating mechanism for rotating the separation slide (3) so that the separation slide (3) is in a first inclined state, a second inclined state, and a third inclined state from top to bottom; and a transition slide (4) disposed between the separation slide (3) and the weighing slide (1); A material guide chute (5) is provided at the tail of the separation chute (3), the separation chute (3) is in a first inclined state, tablets enter the material guide chute (5) through the separation chute (3), and a tablet collection box is provided at the tail of the material guide chute; A fragment collection box (6) is located below the separation slide (3), the separation slide (3) is in a second inclined state, and the tablets slide along the separation slide (3) into the fragment collection box (6); a sampling chute (7) located below the separation chute (3) and between the weighing chute (1) and the debris collection box (6); the sampling chute (7) and the separation chute (3) are arranged crosswise; the separation chute (3) is in the third inclined state, and the tablets enter the sampling chute (7); The inspection table (8) is located at the tail end of the sampling slideway (7), and the tablets passing through the sampling slideway (7) slide onto the inspection table (8), and the sampling slideway (7) is tilted downward toward the inspection table (8). a pressure loading system, disposed above the testing platform (8), for applying pressure to the tablet on the testing platform (8); A static weighing sensor (9) is arranged below the detection platform (8); The pressure bearing component is located between the detection platform (8) and the static weighing sensor (9), so that the detection platform (8) is in a hardness detection state and a weight detection state from top to bottom. When the detection platform (8) is in the hardness detection state, the pressure bearing component bears the force transmitted by the detection platform (8); when the detection platform (8) is in the weight detection state, the static weighing sensor (9) bears the force transmitted by the detection platform (8) to perform random inspection of tablets.

2. The device for separating defective tablets in tablet production according to claim 1, characterized in that: The invention also includes a sorting frame (10) and a detection frame (11), wherein the sorting frame (10) includes a support member (12) located at the upper portion, the weighing slide (1), the transition slide (4), the separation slide (3), and the material guide slide (5) are sequentially installed on the sorting frame (10) in an inclined downward direction, the transition slide (4) is detachably installed on the support member (12), the detection platform (8), the static weighing sensor (9), and the pressure bearing assembly are installed on the detection frame (11), and the online weighing sensor (2) is fixed on the sorting frame (10).

3. The device for separating defective tablets in tablet production according to claim 2, characterized in that: The slideway rotation mechanism comprises a separation electric telescopic rod (13) fixed to the lower part of the support member (12); a separation rack (14) is installed at the end of the telescopic rod of the separation electric telescopic rod (13); the separation rack (14) is engaged with a separation gear (15); a separation rotating shaft (16) is fixed to the lower part of the separation slideway (3); the separation gear (15) is installed on the separation rotating shaft (16); when the telescopic rod is fully retracted, the separation slideway (3) is in a first tilted state; when the telescopic rod is extended to half of the total stroke, the separation slideway (3) is in a second tilted state; when the telescopic rod is fully extended, the separation slideway (3) is in a third tilted state.

4. The device for separating defective tablets in tablet production according to claim 2, characterized in that: The lower part of the detection platform (8) is provided with a detection shaft (17), and the pressure bearing assembly includes a truncated cone-shaped carrier (18) fixed in the middle of the detection shaft (17), the small end of the carrier (18) is downward and coaxially arranged with the detection shaft (17), and the detection shaft (17) is coaxially sleeved with a support body (19) with a cylindrical hole in the middle, and the lower end of the carrier (18) enters the circumferential hole. A driving plate (20) is fixed on both opposite sides of the support body (19), and guide rods (21) are provided on the other two sides. The lower part of the driving plate (20) is provided with a first inclined surface. A driving block (22) is provided at the lower portion of the driving plate (20), and an upper portion of the driving block (22) is provided on a second inclined surface with an inclination angle consistent with the first inclined surface, and the first inclined surface is in sliding contact with the second inclined surface. A driving rod is installed on one side of the driving block (22), and the two driving rods are fixed with the same driving connecting piece (41). A driving cylinder (23) and a detection guide piece (24) are provided on the detection frame (11), and the guide rod (21) passes through the detection guide piece (24) downward and is slidably connected to the detection guide piece (24) up and down, and the cylinder rod of the driving cylinder is fixedly connected to the driving connecting piece (41).

5. The device for separating defective tablets in tablet production according to claim 2, characterized in that: The static weighing sensor (9) is located below the support body (19), the detection platform (8) is in a hardness detection state, the carrier (18) is in contact with the support body (19), and the detection shaft (17) is separated from the static weighing sensor. When the detection platform (8) is in a weight detection state, the detection shaft (17) is in contact with the static weighing sensor (9).

6. The device for separating defective tablets in tablet production according to claim 1, characterized in that: An air collecting hood (25) is provided on the upper portion of the detection platform (8), and a dust collector is connected to the upper portion of the air collecting hood (25) through an air suction pipe. A hood frame (26) is fixed to the upper portion of the air collecting hood (25), and the hood frame (26) is connected to an air hood cylinder (27) fixed to the upper portion of the detection frame (11). The air hood cylinder (17) drives the air collecting hood (25) to move laterally.

7. The device for separating defective tablets in tablet production according to claim 2, characterized in that: The pressure loading system includes a pressurizing cylinder (28) and a pressure block (29). The pressure block (29) is mounted on the cylinder rod of the pressurizing cylinder (28). A pressure sensor for detecting pressure is provided between the pressure block (29) and the cylinder rod of the pressurizing cylinder (28). The pressurizing cylinder (28) is mounted on the upper part of the detection frame (11). The pressure block (29) is located above the detection platform (8) and can move up and down under the drive of the pressurizing cylinder (28).

8. The device for separating defective tablets in tablet production according to claim 6, characterized in that: A gathering cylinder (30) is fixedly provided above the middle of the detection platform (8).

9. The device for separating defective tablets in tablet production according to claim 8, characterized in that: Three shifting needles (31) are evenly distributed along the circumference of the cylinder rod axis of the pressurizing cylinder (28) above the detection platform (8), and a shifting shaft (32) is fixed to the end of the wave needle. The shifting shaft (32) passes through the detection platform (8) downward and is rotatably connected to the detection platform (8). A planetary gear (33) is installed at the lower end of the shifting shaft (32). An inner gear ring (34) is provided outside the planetary gear (33). The three planetary gears (33) are all located inside the inner gear ring (34) and are all meshed with the inner gear ring (34). An outer gear ring (35) is coaxially provided on the outer side of the inner gear ring (34). A cylindrical shaft (36) is coaxially sleeved on the detection shaft (17). The lower part of the cylindrical shaft (36) is fixed to the detection frame through a cylindrical shaft bracket. A planetary frame ( 37), the toggle shaft (32) is rotatably mounted on the planetary frame (37), a gear ring frame (38) is fixed to the lower part of the inner gear ring (34), the gear ring frame (38) is mounted on the cylindrical shaft (36) and is coaxially rotatably connected to the cylindrical shaft (36), the outer gear ring (35) is meshedly connected with a toggle rack (39), one end of the toggle rack (39) is provided with a toggle electric telescopic rod (40) mounted on the detection frame (11), the telescopic rod of the toggle electric telescopic rod (40) is fixedly connected to the toggle rack (39), three toggle grooves (3001) are provided on the gathering cylinder (30), and the toggle grooves (3001) correspond to the toggle needles (31) one by one, which can ensure that the toggle needles (31) rotate through to complete the adjustment of the position of the tablet to be detected.

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