Turnover mechanism and tablet detection device with same

Abstract

The invention discloses a turnover mechanism and a tablet detection device with the turnover mechanism, and relates to the technical field of tablet detection.The turnover mechanism comprises a mounting plate, a motor is fixedly connected to the outer wall of one side of the mounting plate, the output end of the motor is fixedly connected with a negative pressure shell, and a negative pressure assembly is arranged on one side of the negative pressure shell; and the negative pressure assembly is fixedly connected to the outer wall of one side of the other mounting plate, the outer wall of one side of each mounting plate is fixedly connected with a control panel, and first connecting pipes which are circularly distributed at equal intervals are arranged on the circumferential outer wall of the negative pressure shell. According to the tablet detection device, all-directional dead-corner-free detection work of tablets can be achieved through the three sets of high-speed cameras, meanwhile, the tablets cannot be extruded in the detection process, the integrity and quality of the surfaces of the tablets are guaranteed, and the situation that the tablets crack or even are damaged in the detection process is avoided; and meanwhile, the tablets can be circularly overturned and detected through the overturning mechanism, so that the detection efficiency of the tablets is further improved.

Description

Technical Field

[0001] The present invention relates to the field of tablet detection technology, and in particular to a flipping mechanism and a tablet detection device having the same. Background Art

[0002] In the tablet production process, due to the uniformity, fluidity, impurities, production equipment and other factors of the tablet powder raw materials, tablet cracking, fragmentation, color difference, and surface spots may occur, which may easily lead to poor tablet quality. Therefore, tablet testing has become an important link after the tableting process that cannot be ignored.

[0003] After searching, the Chinese invention patent with announcement number CN102798727B discloses a fully automatic tablet inspection machine, in which a tablet turning mechanism is installed at the front end of the frame, a tablet defect identification device and a defective tablet rejection device are installed above the horizontal part of the upper A belt or the upper B belt, and a tablet sequence arrangement device is installed at the front end of the B belt at the rear end of the frame.

[0004] Based on the existing technologies, the above patents still have the following deficiencies: due to the different sizes, structures and hardness of the tablets to be tested, when the tension of the flipping belt cannot be adjusted or the belt tension needs to be re-adjusted for each tablet tested, it is easy to cause inconvenience to the tablet testing work. At the same time, when the tablets are flipped by multiple groups of belts in the above flipping mechanism, it is easy for the belts to squeeze the tablets and cause them to break, thus affecting the production quality of the tablets. Therefore, there is an urgent need for a flipping mechanism and a tablet testing device with the mechanism to solve the above problems. Summary of the invention

[0005] In view of the problems in the related art, the present invention provides a flipping mechanism and a tablet detection device having the mechanism to overcome the above technical problems existing in the existing related art.

[0006] The technical solution of the present invention is achieved in this way: A flip mechanism comprises a mounting plate, one side outer wall of the mounting plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a negative pressure shell, one side of the negative pressure shell is provided with a negative pressure component, the negative pressure component is fixedly connected to one side outer wall of another mounting plate, and one side outer wall of the mounting plate is fixedly connected to a control panel; The circumferential outer wall of the negative pressure shell is provided with first connecting pipes distributed in a circle at equal distances, one end of the first connecting pipe is threadedly connected to a bellows, and the end of the bellows away from the first connecting pipe is threadedly connected to a second connecting pipe, the first connecting pipe, the bellows, and the second connecting pipe are all connected to the negative pressure shell, the circumferential outer wall of the second connecting pipe is fixedly connected to a first sealing bearing, and the second connecting pipe is rotatably connected to an air suction hood through the first sealing bearing; The interior of the suction hood is provided with a discharge assembly for facilitating the rapid shedding of the tablets; The circumferential outer wall of the suction hood is provided with a rotating assembly.

[0007] Furthermore, the negative pressure component includes an air suction pump fixedly connected to the outer wall of one side of another mounting plate, the air suction end of the air suction pump is fixedly connected to an air suction pipe, the circumferential outer wall of the air suction pipe is fixedly connected to a second sealed bearing, the air suction pipe is rotatably connected to the negative pressure shell through the second sealed bearing, and the air suction pipe extends to the interior of the negative pressure shell at one end away from the air suction pump.

[0008] Furthermore, a fixing frame is fixedly connected to the circumferential inner wall of the first connecting pipe and the second connecting pipe, and a first spring is fixedly connected to one side of the two fixing frames. The first spring is located inside the corrugated pipe.

[0009] Furthermore, a transverse column is fixedly connected to the circumferential outer wall of the air intake hood, a blocking rod is arranged below the mounting plate, and the blocking rod includes a rectangular portion and an arc-shaped portion, and the arc-shaped portion is located above the rectangular portion.

[0010] Furthermore, a partition is fixedly connected to the circumferential inner wall of the suction hood, a suction hole is opened on one side outer wall of the partition, and an adsorption head is fixedly connected to the bottom end of the suction hood, and the tablets are adsorbed on the bottom outer wall of the adsorption head.

[0011] The cam is connected to the first end of the support frame, and the cam is connected to the first end of the support frame by a toothed connection, and the toothed connection of the cam is connected to the first end of the support frame by a toothed connection.

[0012] Furthermore, a movable groove is provided on the circumferential inner wall of the air intake hood, and the outer wall of one end of the connecting rod passing through the movable groove is fixedly connected to a horizontal plate, and the outer walls on both sides of the horizontal plate are fixedly connected to bent rods, and the end of the bent rod away from the horizontal plate is fixedly connected to a round block, and one side of the round block is rotatably connected to a wheel axle, and the circumferential outer wall of the wheel axle is fixedly connected to a roller, and a guide plate and a convex plate are provided on one side of the mounting plate, and the convex plate is provided in the middle of the two groups of guide plates, and the roller rolls on the top outer walls of the guide plate and the convex plate.

[0013] Furthermore, a second spring is fixedly connected to an inner wall of one side of the movable groove, and the other end of the second spring is fixedly connected to an outer wall of one side of the transverse plate.

[0014] Furthermore, the rotating assembly includes a bevel gear fixedly connected to the circumferential outer wall of the air intake hood, a fixing groove is opened on one side of the mounting plate, a bevel gear ring plate is fixedly connected inside the fixing groove, and the bevel gear is meshed with the bevel gear ring plate.

[0015] A tablet detection device includes a flipping mechanism as described in the above embodiment, and also includes a first conveyor belt and a second conveyor belt, both sides of the first conveyor belt and the second conveyor belt are fixedly connected to side plates, the baffle is fixedly connected to the top outer wall of the side plate, the guide plate and the convex plate are fixedly connected to one side outer wall of the side plate, one side of the side plate is fixedly connected to a first connecting plate, and the first connecting plate is fixedly connected to the mounting plate.

[0016] Furthermore, the top outer walls of the side panels are respectively fixedly connected with a fixing frame and a vertical rod, the top of the vertical rod is fixedly connected with a box body, one side of the box body is fixedly connected with a second connecting plate, the box body is fixedly connected to the mounting plate via the second connecting plate, one side of the mounting plate is provided with a through groove for facilitating the rotation of the horizontal column, the top inner wall of the fixing frame is fixedly connected with a first high-speed camera, the interior of the box body is fixedly connected with a second high-speed camera and a third high-speed camera, the first high-speed camera and the third high-speed camera are respectively vertically mounted on the fixing frame and one side inner wall of the box body, and the second high-speed camera is horizontally mounted on one side inner wall of the box body.

[0017] Furthermore, a fill light is fixedly connected to an inner wall of one side of the box, and the fill light is located on one side of the second high-speed camera and the third high-speed camera.

[0018] Beneficial effects of the present invention: The present invention provides a flipping mechanism and a tablet detection device with the mechanism, which can realize all-round detection of tablets without blind spots through three groups of high-speed cameras. At the same time, the tablets will not be squeezed during the detection process, thereby ensuring the integrity and quality of the tablet surface and avoiding cracks or even damage to the tablets during the detection process. At the same time, the flipping mechanism can cause the tablets to be cyclically flipped for detection, thereby further improving the detection efficiency of the tablets.

[0019] The present invention provides a flipping mechanism and a tablet detection device with the mechanism, which can realize automatic material picking and detection of tablets, and further improve the detection efficiency of tablets. Specifically, through the negative pressure component, the first connecting pipe, the second connecting pipe, the first spring and the bellows, the tablets are transported forward by the first conveyor belt. In the process of the first conveyor belt transporting the tablets, the first high-speed camera arranged on the fixed frame can perform positive detection of the tablets. In this process, the motor and the suction pump are started at the same time, and the negative pressure shell can be driven by the motor to rotate clockwise. In the process of the rotation of the negative pressure shell, multiple groups of first connecting pipes, second connecting pipes and bellows arranged on the outer wall thereof can be driven to make circular motions. When the second connecting pipe and the suction hood rotate to above the first conveyor belt, the horizontal column arranged on the outer wall of the suction hood will be blocked by the blocking rod, thereby causing deformation and bending, thereby facilitating the suction hood to quickly absorb and pick up the tablets transported to one end of the first conveyor belt, and facilitating the subsequent detection of other areas of the tablets by the device.

[0020] The present invention provides a flipping mechanism and a tablet detection device with the mechanism. Through the unloading assembly, when the tablets are detected by three groups of high-speed cameras, they will continue to make circular motion. When the suction hood moves to the top of the first conveyor belt, the rollers arranged outside the suction hood will roll on the top of the guide plate. As the suction hood continues to rotate, the rollers will roll to the top of the convex plate. At this time, the rollers will drive the bent rod and the cross plate to lift upward together. Since the connecting rod and the first rotating seat form a seesaw structure, the other end of the connecting rod will drive the fixed ball to move downward during the upward lifting of the cross plate. When the fixed ball moves downward, it will drive the bent rod and the cross plate to lift upward together. The movable column descends together, and the movable column drives the fixed block and the ring frame to move downward. When the ring frame moves downward, the sealing gasket will be separated from the air leakage hole. At this time, the sealing gasket cannot achieve sealing, so that the negative pressure in the suction hood can no longer be generated. When the negative pressure suction force can not be generated in the suction hood, the tablets will fall off from one end of the adsorption head and fall on the second conveyor belt, completing the unloading of the tablets. When the end of the connecting rod fixed with the fixed ball is tilted to a certain extent, a thrust can be applied to the tablets adsorbed on the end of the adsorption head, thereby speeding up the unloading of the tablets and avoiding the situation that the tablets cannot fall off smoothly when the negative pressure in the suction hood is weakened. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall front structure of the present invention.

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0024] Figure 3 It is a schematic diagram of the overall back structure of the present invention.

[0025] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0026] Figure 5 It is a schematic diagram of the internal structure of the box body of the present invention.

[0027] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0028] Figure 7It is a schematic cross-sectional structure diagram of the negative pressure shell, the first connecting pipe, the bellows and the second connecting pipe in the present invention.

[0029] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at D in the middle.

[0030] Fig. 9 It is a schematic diagram of the internal structure of the suction hood of the present invention.

[0031] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure at E in the middle.

[0032] Fig.11 It is a schematic diagram of the half-section structure of the air suction hood of the present invention.

[0033] In the figure: 1. Side plate; 2. Fixed frame; 3. Box body; 4. First conveyor belt; 5. Tablets; 6. Mounting plate; 7. First connecting plate; 8. Control panel; 9. Motor; 10. Negative pressure shell; 11. First connecting pipe; 12. Bellows; 13. Second connecting pipe; 14. Bevel gear; 15. First sealed bearing; 16. Horizontal column; 17. Stop rod; 18. Second connecting plate; 19. Suction hood; 20. Air leakage hole; 21. Roller; 22. Horizontal plate; 23. Bending rod; 24. Suction pump; 25. Suction pipe; 26. Second conveyor belt; 27. First spring; 28 , fixing groove; 29, bevel gear ring plate; 30, through groove; 31, first high-speed camera; 32, second high-speed camera; 33, third high-speed camera; 34, fill light; 35, guide plate; 36, convex plate; 37, fixing frame; 38, round block; 39, axle; 40, suction head; 41, movable groove; 42, partition; 43, suction hole; 44, second spring; 45, first rotating seat; 46, connecting rod; 47, fixed ball; 48, second rotating seat; 49, limit plate; 50, sealing gasket; 51, ring frame; 52, fixing block; 53, movable column. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0035] See also Figure 1-Figure 11A flip mechanism includes a mounting plate 6, a motor 9 is fixedly connected to one side outer wall of the mounting plate 6, a negative pressure shell 10 is fixedly connected to the output end of the motor 9, a negative pressure assembly is arranged on one side of the negative pressure shell 10, the negative pressure assembly is fixedly connected to one side outer wall of another mounting plate 6, and a control panel 8 is fixedly connected to one side outer wall of the mounting plate 6; The circumferential outer wall of the negative pressure shell 10 is provided with first connecting pipes 11 distributed in a circular shape at equal distances, one end of the first connecting pipe 11 is threadedly connected to a bellows 12, and one end of the bellows 12 away from the first connecting pipe 11 is threadedly connected to a second connecting pipe 13, the first connecting pipe 11, the bellows 12, and the second connecting pipe 13 are all connected to the negative pressure shell 10, the circumferential outer wall of the second connecting pipe 13 is fixedly connected to a first sealing bearing 15, and the second connecting pipe 13 is rotatably connected to an air intake hood 19 through the first sealing bearing 15; The interior of the suction hood 19 is provided with a discharge assembly for facilitating the rapid shedding of the tablets 5; The circumferential outer wall of the suction hood 19 is provided with a rotating assembly.

[0036] Preferably, the negative pressure component includes an air pump 24 fixedly connected to the outer wall of one side of another mounting plate 6, the air suction end of the air pump 24 is fixedly connected to an air suction pipe 25, the circumferential outer wall of the air suction pipe 25 is fixedly connected to a second sealing bearing, the air suction pipe 25 is rotatably connected to the negative pressure shell 10 through the second sealing bearing, and the air suction pipe 25 extends from one end of the air suction pump 24 to the interior of the negative pressure shell 10.

[0037] Preferably, the circumferential inner walls of the first connecting tube 11 and the second connecting tube 13 are fixedly connected with a fixing frame 37, and one side of the two fixing frames 37 is fixedly connected with a first spring 27. The first spring 27 is located inside the bellows 12. The first spring 27 can make the first connecting tube 11, the bellows 12 and the second connecting tube 13 straighten again after the material is taken, so as to facilitate the subsequent detection work.

[0038] Preferably, the circumferential outer wall of the suction hood 19 is fixedly connected with a cross column 16, and a baffle 17 is arranged under the mounting plate 6. The baffle 17 includes a rectangular portion and an arc-shaped portion, and the arc-shaped portion is located above the rectangular portion. The circumferential inner wall of the suction hood 19 is fixedly connected with a partition 42, and an outer wall on one side of the partition 42 is provided with a suction hole 43. The bottom end of the suction hood 19 is fixedly connected with an adsorption head 40, and the tablets 5 are adsorbed on the bottom outer wall of the adsorption head 40. During the rotation of the negative pressure shell 10, it can drive multiple groups of first connecting pipes 11, second connecting pipes 13 and bellows 12 arranged on its outer wall to make circular motions. When the second connecting pipe 13 and the suction hood 19 rotate to above the first conveyor belt 4, the cross column 16 arranged on the outer wall of the suction hood 19 will be blocked by the baffle 17, thereby deforming and bending, thereby facilitating the suction hood 19 to quickly adsorb and take out the tablets 5 conveyed to one end of the first conveyor belt 4, and facilitating the subsequent detection of other areas of the tablets 5 by the device.

[0039] Preferably, the unloading assembly includes a connecting rod 46 arranged inside the suction hood 19, a first short rod is fixedly connected to one side of the connecting rod 46 close to the partition 42, one end of the first short rod is rotatably connected to the first rotating seat 45, the first rotating seat 45 is fixedly connected to the outer wall of one side of the partition 42, one end of the connecting rod 46 is fixedly connected to a fixed ball 47, the circumferential outer wall of the fixed ball 47 is fixedly connected to the second short rod, one end of the second short rod is rotatably connected to the second rotating seat 48, one side of the second rotating seat 48 is fixedly connected to a limiting plate 49, one side outer wall of the limiting plate 49 is fixedly connected to a movable column 53, the movable column 53 passes through the inside of the partition 42, the circumferential outer wall of the suction hood 19 is provided with equidistant and circularly distributed air leakage holes 20, the interior of the suction hood 19 is provided with A sealing gasket 50 is arranged, and the sealing gasket 50 is tightly attached to one side of the air leakage hole 20. A ring frame 51 for fixing the sealing gasket 50 is arranged inside the air suction hood 19. A connecting rod is fixedly connected to the circumferential inner wall of the ring frame 51. A fixing block 52 is fixedly connected to one end of the connecting rod. The fixing block 52 is fixedly connected to a movable column 53. A movable groove 41 is opened on the circumferential inner wall of the air suction hood 19. The outer wall of one end of the connecting rod 46 passing through the movable groove 41 is fixedly connected to the transverse plate 22. The outer walls of both sides of the transverse plate 22 are fixedly connected to the bent rod 23. The end of the bent rod 23 away from the transverse plate 22 is fixedly connected to a round block 38. A wheel shaft 39 is rotatably connected to one side of the round block 38. The circumferential outer wall of the wheel shaft 39 is fixedly connected to the roller 21. A guide plate 3 is arranged on one side of the mounting plate 6. 5 and a convex plate 36, the convex plate 36 is arranged in the middle of the two groups of guide plates 35, and the roller 21 rolls on the top outer wall of the guide plate 35 and the convex plate 36. When the tablet 5 passes through the detection of the three groups of high-speed cameras, it will continue to make a circular motion. When the suction hood 19 moves to the top of the first conveyor belt 4, the roller 21 arranged outside the suction hood 19 will roll on the top of the guide plate 35. As the suction hood 19 continues to rotate, the roller 21 will roll to the top of the convex plate 36. At this time, the roller 21 will drive the bent rod 23 and the cross plate 22 to lift upward together. Since the connecting rod 46 and the first rotating seat 45 form a seesaw structure, the other end of the connecting rod 46 will drive the fixed ball 47 to move downward during the upward lifting of the cross plate 22. When the fixed ball 47 moves downward During the process, the movable column 53 will be driven to descend together. At this time, the movable column 53 drives the fixed block 52 and the ring frame 51 to move downward. When the ring frame 51 moves downward, the sealing gasket 50 will be separated from the air leakage hole 20. At this time, the sealing gasket 50 cannot achieve sealing, so that the negative pressure can no longer be generated in the suction hood 19. When the negative pressure suction force cannot be generated in the suction hood 19, the tablet 5 will fall off from one end of the adsorption head 40 and fall on the second conveyor belt 26, completing the unloading of the tablet 5. When the end of the connecting rod 46 fixed with the fixed ball 47 is tilted to a certain extent, a thrust can be applied to the tablet 5 adsorbed at the end of the adsorption head 40, thereby accelerating the unloading of the tablet 5 and avoiding the situation that the tablet 5 cannot fall off smoothly when the negative pressure in the suction hood 19 is weakened.

[0040] Preferably, a second spring 44 is fixedly connected to an inner wall on one side of the movable groove 41, and the other end of the second spring 44 is fixedly connected to an outer wall on one side of the horizontal plate 22. The second spring 44 can play a certain resetting role, ensuring that after the device completes unloading, the sealing gasket 50 can be quickly and stably reset, so that the suction hood 19 is still in a sealed state, so that subsequent material collection and detection work can be carried out stably.

[0041] Preferably, the rotating assembly includes a bevel gear 14 fixedly connected to the circumferential outer wall of the air hood 19, a fixing groove 28 is opened on one side of the mounting plate 6, a bevel gear ring plate 29 is fixedly connected inside the fixing groove 28, and the bevel gear 14 is meshed with the bevel gear ring plate 29. During the process of the third high-speed camera 33 detecting the circumferential outer wall of the tablet 5, since the circumferential outer wall of the air hood 19 is fixedly connected with the bevel gear 14, and the bevel gear 14 is meshed with the bevel gear ring plate 29, when the air hood 19 continues to make a circular motion, the bevel gear 14 will drive the air hood 19 to rotate. When the bevel gear 14 is separated from the bevel gear ring plate 29, the air hood 19 will rotate 180°. When the air hood 19 rotates 180°, the tablet 5 adsorbed on one end thereof will also rotate together, so that the third high-speed camera 33 can perform all-round detection of the circumferential outer wall of the tablet 5.

[0042] A tablet detection device includes the above-mentioned flipping mechanism, and also includes a first conveyor belt 4 and a second conveyor belt 26. The first conveyor belt 4 and the second conveyor belt 26 are fixedly connected to the side panels 1 on both sides. The blocking rod 17 is fixedly connected to the top outer wall of the side panel 1. The guide plate 35 and the convex plate 36 are fixedly connected to the outer wall of one side of the side panel 1. One side of the side panel 1 is fixedly connected to the first connecting plate 7. The first connecting plate 7 is fixedly connected to the mounting plate 6. The mounting plate 6 and the side panel 1 can be fastened together by the first connecting plate 7, thereby ensuring the stability of the flipping mechanism when working.

[0043] Preferably, the top outer walls of the side panels 1 are fixedly connected with the fixing frame 2 and the vertical rod, the top of the vertical rod is fixedly connected with the box body 3, one side of the box body 3 is fixedly connected with the second connecting plate 18, the box body 3 is fixedly connected to the mounting plate 6 through the second connecting plate 18, and one side of the mounting plate 6 is provided with a through slot 30 for facilitating the rotation of the cross column 16, the top inner wall of the fixing frame 2 is fixedly connected with the first high-speed camera 31, the interior of the box body 3 is fixedly connected with the second high-speed camera 32 and the third high-speed camera 33, the first high-speed camera 31 and the third high-speed camera 33 are vertically mounted on the fixing frame 2 and the inner wall of one side of the box body 3, respectively, and the second high-speed camera 32 is horizontally mounted on the inner wall of one side of the box body 3, and the three groups of high-speed cameras can realize all-round and dead-angle detection of the tablets 5, and at the same time, the tablets 5 will not be squeezed during the detection process, thereby ensuring the integrity and quality of the surface of the tablets 5, and avoiding cracks or even damage of the tablets 5 during the detection process, and at the same time, the tablets 5 can be cyclically flipped and detected through the flipping mechanism, thereby further improving the detection efficiency of the tablets 5.

[0044] Preferably, a fill light 34 is fixedly connected to the inner wall of one side of the box body 3, and the fill light 34 is located on one side of the second high-speed camera 32 and the third high-speed camera 33. The fill light 34 can improve the quality of the images taken by the second high-speed camera 32 and the third high-speed camera 33, thereby further improving the accuracy of the detection results.

[0045] In summary, with the aid of the above technical solution of the present invention, when in use, the tablets 5 are conveyed forward by the first conveyor belt 4. During the process of the first conveyor belt 4 conveying the tablets 5, the first high-speed camera 31 arranged on the fixed frame 2 can be used to perform a positive detection of the tablets 5. During this process, the motor 9 and the suction pump 24 are started at the same time, and the motor 9 can drive the negative pressure shell 10 to rotate clockwise. During the rotation of the negative pressure shell 10, the multiple groups of first connecting tubes 11, second connecting tubes 13 and bellows 12 arranged on the outer wall thereof can be driven to make circular motions. When the second connecting tube 13 and the suction hood 19 rotate to the first conveyor belt 4, the horizontal column 16 arranged on the outer wall of the suction hood 19 will be blocked by the blocking rod 17, so that it will be deformed and bent, so that the suction hood 19 can quickly absorb and take out the tablets 5 transported to one end of the first conveyor belt 4, and it is convenient for the device to detect other areas of the tablets 5 later. With the continuous rotation of the negative pressure shell 10, when the second connecting pipe 13 is bent to a certain extent, the horizontal column 16 will be separated from the blocking rod 17. At this time, the first spring 27 in the bent state in the bellows 12 will restore its deformation, so that the first connecting pipe 11, the bellows 12 and the second connecting pipe 13 are straightened again, which is convenient for subsequent detection work; Subsequently, the suction hood 19 drives the tablet 5 adsorbed on one end thereof to move clockwise together. When the suction hood 19 rotates to one side of the box body 3, the second high-speed camera 32 fixed on the inner wall of the box body 3 can detect the bottom surface of the tablet 5. At the same time, the third high-speed camera 33 fixed on the top of the box body 3 can detect the circumferential outer wall of the tablet 5. During the detection of the circumferential outer wall of the tablet 5 by the third high-speed camera 33, since the circumferential outer wall of the suction hood 19 is fixedly connected with the bevel gear 14, and the bevel gear 14 is meshed with the bevel gear ring plate 29, when the suction hood 19 continues to make a circular motion, the bevel gear 14 will drive the suction hood 19 to rotate. When the gear 14 is separated from the helical gear ring plate 29, the suction hood 19 will rotate 180°. When the suction hood 19 rotates 180°, the tablet 5 adsorbed on one end of the suction hood 19 will also rotate together, so that the third high-speed camera 33 can perform all-round detection of the circumferential outer wall of the tablet 5. Therefore, the three groups of high-speed cameras can realize all-round detection of the tablet 5 without dead angles. At the same time, the tablet 5 will not be squeezed during the detection process, thereby ensuring the integrity and quality of the surface of the tablet 5, avoiding cracks or even damage to the tablet 5 during the detection process. At the same time, the tablet 5 can be cyclically flipped and tested through the flipping mechanism, further improving the detection efficiency of the tablet 5. After the tablet 5 has been inspected by three sets of high-speed cameras, it will continue to make a circular motion. When the suction hood 19 moves to the top of the first conveyor belt 4, the roller 21 arranged outside the suction hood 19 will roll on the top of the guide plate 35. As the suction hood 19 continues to rotate, the roller 21 will roll to the top of the convex plate 36. At this time, the roller 21 will drive the curved rod 23 and the cross plate 22 to lift upward together. Since the connecting rod 46 and the first rotating seat 45 form a seesaw structure, the other end of the connecting rod 46 will drive the fixed ball 47 to move downward during the upward lifting of the cross plate 22. When the fixed ball 47 moves downward, it will drive the movable column 53 to descend together. At this time, the movable column 53 brings The movable fixed block 52 and the ring frame 51 move downward. When the ring frame 51 moves downward, the sealing gasket 50 will be separated from the air leakage hole 20. At this time, the sealing gasket 50 cannot achieve sealing, so that the negative pressure can no longer be generated in the suction hood 19. When the negative pressure suction force can no longer be generated in the suction hood 19, the tablets 5 will fall off from one end of the adsorption head 40 and fall on the second conveyor belt 26, completing the unloading of the tablets 5. When the end of the connecting rod 46 fixed with the fixed ball 47 is tilted to a certain extent, a thrust can be applied to the tablets 5 adsorbed at the end of the adsorption head 40, thereby accelerating the unloading of the tablets 5 and avoiding the situation that the tablets 5 cannot fall off smoothly when the negative pressure in the suction hood 19 is weakened.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A turning mechanism, comprising a mounting plate (6), characterized in that: A motor (9) is fixedly connected to an outer wall of one side of the mounting plate (6); an output end of the motor (9) is fixedly connected to a negative pressure shell (10); a negative pressure component is provided on one side of the negative pressure shell (10); the negative pressure component is fixedly connected to an outer wall of one side of another mounting plate (6); and a control panel (8) is fixedly connected to an outer wall of one side of the mounting plate (6); The circumferential outer wall of the negative pressure shell (10) is provided with first connecting pipes (11) which are equidistantly distributed in a circular shape; one end of the first connecting pipe (11) is threadedly connected to a bellows (12); one end of the bellows (12) away from the first connecting pipe (11) is threadedly connected to a second connecting pipe (13); the first connecting pipe (11), the bellows (12), and the second connecting pipe (13) are all connected to the negative pressure shell (10); the circumferential outer wall of the second connecting pipe (13) is fixedly connected to a first sealing bearing (15); and the second connecting pipe (13) is rotatably connected to an air intake hood (19) via the first sealing bearing (15); A discharge assembly is provided inside the air suction hood (19) to facilitate the rapid falling of the tablets (5); A rotating assembly is provided on the circumferential outer wall of the suction hood (19).

2. A turning mechanism according to claim 1, characterized in that: The negative pressure assembly comprises an air suction pump (24) fixedly connected to an outer wall of one side of another mounting plate (6); an air suction end of the air suction pump (24) is fixedly connected to an air suction pipe (25); a circumferential outer wall of the air suction pipe (25) is fixedly connected to a second sealing bearing; the air suction pipe (25) is rotatably connected to the negative pressure shell (10) via the second sealing bearing; an end of the air suction pipe (25) away from the air suction pump (24) extends to the interior of the negative pressure shell (10).

3. A turning mechanism according to claim 2, characterized in that: A fixing frame (37) is fixedly connected to the circumferential inner walls of the first connecting tube (11) and the second connecting tube (13), and a first spring (27) is fixedly connected to one side of the two fixing frames (37). The first spring (27) is located inside the bellows (12).

4. A turnover mechanism according to claim 3, characterized in that: A transverse column (16) is fixedly connected to the circumferential outer wall of the air suction hood (19), and a blocking rod (17) is arranged below the mounting plate (6), the blocking rod (17) comprising a rectangular portion and an arc-shaped portion, the arc-shaped portion being located above the rectangular portion.

5. A turnover mechanism according to claim 4, characterized in that: A partition (42) is fixedly connected to the circumferential inner wall of the suction hood (19), and a suction hole (43) is opened on one side outer wall of the suction hood (42). An adsorption head (40) is fixedly connected to the bottom end of the suction hood (19), and the tablets (5) are adsorbed on the bottom outer wall of the adsorption head (40).

6. A turnover mechanism according to claim 5, characterized in that: The unloading assembly comprises a connecting rod (46) arranged inside the suction hood (19); a first short rod is fixedly connected to a side of the connecting rod (46) close to the partition (42); one end of the first short rod is rotatably connected to a first rotating seat (45); the first rotating seat (45) is fixedly connected to an outer wall of one side of the partition (42); one end of the connecting rod (46) is fixedly connected to a fixed ball (47); a second short rod is fixedly connected to a circumferential outer wall of the fixed ball (47); one end of the second short rod is rotatably connected to a second rotating seat (48); one side of the second rotating seat (48) is fixedly connected to a limiting plate (49); one side of the limiting plate (49) The outer wall is fixedly connected to a movable column (53), the movable column (53) passes through the interior of the partition (42), the circumferential outer wall of the air suction cover (19) is provided with equidistant circularly distributed air leakage holes (20), the interior of the air suction cover (19) is provided with a sealing gasket (50), the sealing gasket (50) is tightly attached to one side of the air leakage hole (20), the interior of the air suction cover (19) is provided with a ring frame (51) for fixing the sealing gasket (50), the circumferential inner wall of the ring frame (51) is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to a fixing block (52), and the fixing block (52) is fixedly connected to the movable column (53).

7. A turnover mechanism according to claim 6, characterized in that: A movable groove (41) is provided on the circumferential inner wall of the air suction hood (19); the outer wall of one end of the connecting rod (46) passing through the movable groove (41) is fixedly connected to a transverse plate (22); the outer walls on both sides of the transverse plate (22) are fixedly connected to a bent rod (23); the end of the bent rod (23) away from the transverse plate (22) is fixedly connected to a round block (38); one side of the round block (38) is rotatably connected to a wheel axle (39); the circumferential outer wall of the wheel axle (39) is fixedly connected to a roller (21); a guide plate (35) and a convex plate (36) are provided on one side of the mounting plate (6); the convex plate (36) is provided in the middle of the two groups of guide plates (35); and the roller (21) rolls on the top outer walls of the guide plate (35) and the convex plate (36).

8. A turnover mechanism according to claim 7, characterized in that: A second spring (44) is fixedly connected to an inner wall of one side of the movable groove (41), and the other end of the second spring (44) is fixedly connected to an outer wall of one side of the transverse plate (22).

9. A turnover mechanism according to claim 8, characterized in that: The rotating assembly comprises a bevel gear (14) fixedly connected to the circumferential outer wall of the suction hood (19); a fixing groove (28) is provided on one side of the mounting plate (6); a bevel gear ring plate (29) is fixedly connected inside the fixing groove (28); and the bevel gear (14) meshes with the bevel gear ring plate (29).

10. A tablet detection device, comprising a flipping mechanism according to claim 9, characterized in that: It also includes a first conveyor belt (4) and a second conveyor belt (26), both sides of the first conveyor belt (4) and the second conveyor belt (26) are fixedly connected to side panels (1), a baffle (17) is fixedly connected to the top outer wall of the side panel (1), a guide plate (35) and a convex plate (36) are fixedly connected to one side outer wall of the side panel (1), one side of the side panel (1) is fixedly connected to a first connecting plate (7), and the first connecting plate (7) is fixedly connected to a mounting plate (6).

11. A tablet detection device according to claim 10, characterized in that: The top outer walls of the side panels (1) are respectively fixedly connected to a fixing frame (2) and a vertical rod, the top end of the vertical rod is fixedly connected to a box body (3), one side of the box body (3) is fixedly connected to a second connecting plate (18), the box body (3) is fixedly connected to the mounting plate (6) via the second connecting plate (18), one side of the mounting plate (6) is provided with a through slot (30) for facilitating the rotation of the cross column (16), the top inner wall of the fixing frame (2) is fixedly connected to a first high-speed camera (31), the interior of the box body (3) is fixedly connected to a second high-speed camera (32) and a third high-speed camera (33), the first high-speed camera (31) and the third high-speed camera (33) are respectively vertically mounted on the fixing frame (2) and one side inner wall of the box body (3), and the second high-speed camera (32) is horizontally mounted on one side inner wall of the box body (3).

12. A tablet detection device according to claim 11, characterized in that: A fill light (34) is fixedly connected to an inner wall of one side of the box body (3), and the fill light (34) is located on one side of the second high-speed camera (32) and the third high-speed camera (33).

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