Automatic filling device for pharmaceutical bio-capsules
By designing an automatic filling device that includes components such as a support frame, motor, cylinder, and piston, the problems of slow speed and low precision of traditional biological capsule filling devices have been solved, achieving fully automated, precise filling and mixing, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING TECH UNIV
- Filing Date
- 2024-02-22
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional pharmaceutical biocapsule filling devices have slow filling speeds, low precision, and are easily affected by human factors, which limits the improvement of production efficiency and product quality.
An automatic filling device was designed, comprising a support frame, motor, cylinder, piston, mixing component, capping component, and feeding component. Through the cooperation of components such as stepping conveyor, stirring, and weight sensor, it achieves fully automated and precise filling and mixing, ensuring capsule quality.
It has achieved fully automated filling of biological capsules, which has improved processing efficiency and filling quality, reduced manual intervention and cost input, and ensured the uniformity of mixing ratio and capsules.
Smart Images

Figure CN118001158B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of biological capsule production technology, specifically to an automatic filling device for pharmaceutical biological capsules. Background Technology
[0002] With the continuous development and progress of the pharmaceutical industry, automation technology is being applied more and more widely in the drug production process. In particular, for the filling process of pharmaceutical biological capsules, the use of automated equipment can improve production efficiency, reduce manpower input, and ensure the consistency of filling quality.
[0003] However, traditional manual filling methods suffer from problems such as complex operation, low work efficiency, and susceptibility to human factors, which limit the improvement of production efficiency and product quality. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides an automatic filling device for pharmaceutical biological capsules, which solves the problems of slow filling speed and low accuracy of existing filling devices.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic filling device for pharmaceutical biological capsules, comprising a support frame, a motor fixedly connected to one side of the support frame, a second pulley fixedly connected to the output end of the motor, a spacer gear fixedly connected to one side of the second pulley, a first fixing frame fixedly connected to the top of the support frame, a mounting plate fixedly connected to the inner wall of the first fixing frame, an L-plate fixedly connected to the top of the mounting plate, a plurality of first cylinders disposed on the top of the L-plate, and a filling chamber fixedly connected to the output end of each first cylinder. The top of the filling chamber is fixedly connected to multiple electric telescopic rods. The bottom of the mounting plate is fixedly connected to a diversion chamber. The top of the filling chamber is fixedly connected to multiple U-shaped blocks. A piston is fixedly connected to one side of the bottom of each U-shaped block. Multiple input pipes are fixedly connected to the right side of the diversion chamber. One through hole is opened on one side of the filling chamber. Another through hole is opened on one side of the diversion chamber. An identification component is provided on the inner wall of the support frame. A mixing component is provided on the top of the support frame. A cover closing component is provided on the top of the support frame. A feeding component is provided on the top of the support frame.
[0006] Preferably, the mixing assembly includes a second fixing frame, a mixing chamber fixedly connected to the top of the second fixing frame, a power rod rotatably connected to one side of the mixing chamber, a pulley fixedly connected to one side of the outer wall of the power rod, multiple rotating rods fixedly connected to the inner wall of the power rod, a second pulley fixedly connected to the output end of the motor, and a leak-proof chamber fixedly connected to the top of the mixing chamber.
[0007] Preferably, the identification component includes a rotating shaft, a plurality of rotating shafts being rotatably connected to the inner wall of the support frame, a conveyor belt being fitted onto the outer wall of the plurality of rotating shafts, a plurality of placement slots being formed on the outer wall of the conveyor belt, lifting plates being fixedly connected to both sides of the inner wall of the support frame, a plurality of electric telescopic rods being rotatably connected to one side of the lifting plate, an opening and closing plate being rotatably connected to the output end of the electric telescopic rods, a weight sensor being provided in the middle of the opening and closing plate, a central block being fixedly connected to the middle of the support frame, a collection bin being slidably connected to the top of the central block, and a gear being rotatably connected to one side of the support frame.
[0008] Preferably, the cover assembly includes a fixing frame three, which is fixedly connected to the top of the support frame. Multiple electric telescopic rods three are fixedly connected to the top of the fixing frame three. A connecting plate is fixedly connected to the output end of the electric telescopic rod three. Multiple rubber blocks are fixedly connected to the bottom of the connecting plate. A guide plate is fixedly connected to one side of the fixing frame three. Multiple limiting grooves are provided on the top of the guide plate.
[0009] Preferably, the feeding assembly includes a fixed frame four, which is fixedly connected to the top side of the support frame. A receiving chamber is fixedly connected to the top of the fixed frame four, and a guide block is fixedly connected to the bottom of the receiving chamber.
[0010] Preferably, the filling chamber is slidably connected to one side of the diversion chamber, the output end of the electric telescopic rod is fixedly connected to a piston, a needle-shaped component is provided at the bottom of the filling chamber, the filling chamber is slidably connected to the inner wall of the placement groove, the input pipe is fixedly connected to the bottom of the mixing chamber, and the U-shaped block is slidably connected to the top of the mounting plate.
[0011] Preferably, the first pulley and the second pulley are connected by a belt.
[0012] Preferably, the collection bin is slidably connected to one side of the support frame, the gear is fixedly connected to one side of one of the rotating shafts, and the spacer gears are meshed with each other.
[0013] Preferably, the rubber block is slidably connected to the inner wall of the limiting groove and to the top of the conveyor belt.
[0014] Preferably, the bottom of the guide block is provided with a needle-shaped component, and the guide block is slidably connected to the top of the conveyor belt.
[0015] Working principle: When using this device to automatically fill biological capsules, the upper half capsule, semi-liquid drug and lower half capsule are first supplied to the receiving chamber, leak-proof chamber and limiting groove respectively through the feeding device. Then, the PLC is connected to multiple weight sensors to set the weight of the capsule after filling.
[0016] After preparation, the motor outputs power to drive the second pulley and the spacer gear to move synchronously. After the movement is generated, the pulley and the spacer gear mesh with each other to achieve a step-by-step transmission effect. At a suitable gap, when the placement trough passes the bottom of the guide block, it will fall into the upper capsule due to gravity. The bottom of the upper capsule is then lifted by the lifting plate. As the conveyor belt moves step by step, it will enter the bottom of the filling chamber.
[0017] By setting an appropriate cylinder opening time, the piston can pressurize the drainage chamber while the filling chamber moves downward. When through hole one and through hole two are aligned, the semi-liquid drug inside the drainage chamber will be injected into the filling chamber. Then, by starting the electric telescopic rod one, the drug entering the filling chamber will fill the bottom upper half of the capsule. After one filling is completed, as the filling chamber is raised, through hole one and through hole two are staggered, and the drainage chamber is in a sealed state. Then, by moving the piston upward, the drug can be drawn from the inside of the stirring chamber into the drainage chamber through the input pipe, and then an automatic filling cycle will be performed.
[0018] During the circulation process, the belt connection between pulley one and pulley two enables periodic stirring within the mixing chamber, thereby preventing drug coagulation and component precipitation.
[0019] As the conveyor belt moves, the upper capsules that have been filled in the placement trough are weighed in real time on the opening and closing plate. According to the PLC settings, when the weight of the upper capsule exceeds or falls below a certain value, the electric telescopic rod will be automatically opened. This will guide the unqualified filled capsules into the collection bin through the opening and closing plate, making it convenient for staff to remove them for reuse.
[0020] As the conveyor belt moves, after reaching the capping assembly, the periodic opening of the electric telescopic rod allows multiple rubber blocks to push the lower capsule in the limiting groove into the placement groove to cap it with the upper capsule. Finally, the capsule slides out through the tail guide plate, completing the automatic filling process.
[0021] This invention provides an automated filling device for pharmaceutical biological capsules. It has the following beneficial effects:
[0022] 1. This invention, through the coordinated use of components such as a fixing frame, a filling chamber, a drainage chamber, and a piston, enables accurate filling of biological capsules after fixation. It also enables automatic preparation after one filling, requiring no manual intervention, achieving full automation and improving processing efficiency.
[0023] 2. This invention, through the coordinated use of components such as spacer gears, pulley one, and pulley two, enables step-by-step feeding and filling during the process, achieving the effect of belt drive. It can periodically stir the medicine, thereby ensuring its mixing ratio and improving the filling quality.
[0024] 3. This invention, through the combined use of components such as the electric telescopic rod, the opening and closing plate, and the weight sensor, can improve the quality of capsule filling and output, effectively reduce cost input, and achieve reuse. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0026] Figure 2 This is a side-view perspective view of the three-dimensional structure of the present invention;
[0027] Figure 3 This is a cross-sectional structural diagram of the fixing frame of the present invention;
[0028] Figure 4 This is a schematic diagram of the piston structure of the present invention;
[0029] Figure 5 This is a schematic diagram of the guide plate structure of the present invention;
[0030] Figure 6 This is an exploded schematic diagram of the rubber block structure of the present invention;
[0031] Figure 7 This is a schematic cross-sectional view of the support frame structure of the present invention;
[0032] Figure 8 for Figure 7 Enlarged diagram of point A.
[0033] The components include: 1. Support frame; 2. Motor; 3. Gear; 4. Spacer gear; 5. Fixing frame one; 6. Mounting plate; 7. Filling chamber; 8. Drainage chamber; 9. U-shaped block; 10. Piston; 11. Input pipe; 12. Through hole one; 13. Through hole two; 14. Electric telescopic rod one; 15. L-plate; 16. Cylinder one; 17. Placement trough; 18. Conveyor belt; 19. Fixing frame two; 20. Mixing chamber; 21. Power rod; 22. 1. Belt pulley 1; 23. Rotating rod; 24. Leak-proof compartment; 25. Rotating shaft; 26. Central block; 27. Collection compartment; 28. Lifting plate; 29. Electric telescopic rod 2; 30. Opening and closing plate; 31. Weight sensor; 32. Fixing frame 3; 33. Electric telescopic rod 3; 34. Connecting plate; 35. Rubber block; 36. Guide plate; 37. Limiting groove; 38. Fixing frame 4; 39. Reception compartment; 40. Flow guide block; 41. Belt pulley 2. Detailed Implementation
[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0035] Example:
[0036] Please see the appendix Figure 1 -Appendix Figure 2 This invention provides an automatic filling device for pharmaceutical biological capsules, including a support frame 1. A motor 2 is fixedly connected to one side of the support frame 1, and a pulley 41 is fixedly connected to the output end of the motor 2. A spacer gear 4 is fixedly connected to one side of the pulley 41. A fixing frame 5 is fixedly connected to the top of the support frame 1, and a mounting plate 6 is fixedly connected to the inner wall of the fixing frame 5. An L-plate 15 is fixedly connected to the top of the mounting plate 6, and a plurality of cylinders 16 are disposed on the top of the L-plate 15. A filling chamber 7 is fixedly connected to the output end of each cylinder 16. The top of the filling chamber 7... Multiple electric telescopic rods 14 are fixedly connected. A flow-inducing chamber 8 is fixedly connected to the bottom of the mounting plate 6. Multiple U-shaped blocks 9 are fixedly connected to the top of the filling chamber 7. A piston 10 is fixedly connected to one side of the bottom of the U-shaped block 9. Multiple input pipes 11 are fixedly connected to the right side of the flow-inducing chamber 8. A through hole 12 is opened on one side of the filling chamber 7. A through hole 2 13 is opened on one side of the flow-inducing chamber 8. An identification component is provided on the inner wall of the support frame 1. A mixing component is provided on the top of the support frame 1. A cover-closing component is provided on the top of the support frame 1. A feeding component is provided on the top of the support frame 1.
[0037] The filling chamber 7 is slidably connected to one side of the drainage chamber 8. The output end of the electric telescopic rod 14 is fixedly connected to the piston 10. The piston 10 can stably push the drug into the upper capsule. The bottom of the filling chamber 7 is provided with a needle-shaped component, which can accurately inject the drug into the upper capsule. The filling chamber 7 is slidably connected to the inner wall of the placement groove 17. The input pipe 11 is fixedly connected to the bottom of the stirring chamber 20. The U-shaped block 9 is slidably connected to the top of the mounting plate 6.
[0038] By setting a suitable opening time for cylinder 16, pressure can be applied to the drainage chamber 8 via piston 10 while the filling chamber 7 moves downward. When through hole 12 and through hole 23 are aligned, the semi-liquid drug inside the drainage chamber 8 will be injected into the filling chamber 7. Then, by starting the electric telescopic rod 14, the drug entering the filling chamber 7 will fill the upper half of the capsule at the bottom. After one filling is completed, as the filling chamber 7 is raised, through hole 12 and through hole 23 are staggered, and the drainage chamber 8 is in a sealed state. Then, by moving piston 10 upward, the drug can be drawn from the inside of the stirring chamber 20 into the drainage chamber 8 through the input pipe 11, and then an automatic filling cycle will be performed.
[0039] Please see the appendix Figure 4 Appendix Figure 2 The mixing assembly includes a second fixed frame 19, a mixing chamber 20 fixedly connected to the top of the second fixed frame 19, a power rod 21 rotatably connected to one side of the mixing chamber 20, a pulley 22 fixedly connected to one side of the outer wall of the power rod 21, a plurality of rotating rods 23 fixedly connected to the inner wall of the power rod 21, a second pulley 41 fixedly connected to the output end of the motor 2, the first pulley 22 and the second pulley 41 being connected by a belt, and a leak-proof chamber 24 fixedly connected to the top of the mixing chamber 20.
[0040] The belt connection between pulley 22 and pulley 41 enables periodic stirring within the mixing chamber 20, thereby preventing drug coagulation and component precipitation.
[0041] Please see the appendix Figure 7 -Appendix Figure 8 The identification component includes rotating shafts 25, multiple rotating shafts 25 are rotatably connected to the inner wall of the support frame 1, and a conveyor belt 18 is fitted onto the outer wall of the multiple rotating shafts 25. Multiple placement slots 17 are opened on the outer wall of the conveyor belt 18. Lifting plates 28 are fixedly connected to both sides of the inner wall of the support frame 1. Multiple electric telescopic rods 29 are rotatably connected to one side of the lifting plates 28. An opening / closing plate 30 is rotatably connected to the output end of the electric telescopic rods 29. A weight sensor 31 is installed in the middle of the opening / closing plate 30. A central block 26 is fixedly connected to the middle of the support frame 1. A collection bin 27 is slidably connected to the top of the central block 26. A gear 3 is rotatably connected to one side of the support frame 1. The collection bin 27 is slidably connected to one side of the support frame 1, and the gear 3 is fixedly connected to one side of one of the rotating shafts 25. A spacer gear 4 and the gear 3 are meshed together.
[0042] As the conveyor belt 18 moves, the upper capsules that have been filled in the placement trough 17 are weighed in real time on the opening and closing plate 30. According to the PLC settings, when the weight of the upper capsule exceeds or falls below a certain value, the electric telescopic rod 29 will be automatically opened, thereby guiding the unqualified filled capsules into the collection bin 27 through the opening and closing plate 30, so that the staff can take them out for reuse later.
[0043] Please see the appendix Figure 5 -Appendix Figure 6 The cover assembly includes a fixing frame 32, which is fixedly connected to the top of the support frame 1. Multiple electric telescopic rods 33 are fixedly connected to the top of the fixing frame 32. A connecting plate 34 is fixedly connected to the output end of the electric telescopic rods 33. Multiple rubber blocks 35 are fixedly connected to the bottom of the connecting plate 34. A guide plate 36 is fixedly connected to one side of the fixing frame 32. Multiple limiting grooves 37 are opened on the top of the guide plate 36.
[0044] The rubber block 35 is slidably connected to the inner wall of the limiting groove 37 and to the top of the conveyor belt 18.
[0045] By opening the periodic electric telescopic rod 33, multiple rubber blocks 35 can push the lower capsule in the limiting groove 37 into the placement groove 17 to close it with the upper capsule.
[0046] Please see the appendix Figure 3 -Appendix Figure 4 The feeding assembly includes a fixed frame 38, which is fixedly connected to the top side of the support frame 1. A receiving bin 39 is fixedly connected to the top of the fixed frame 38, and a guide block 40 is fixedly connected to the bottom of the receiving bin 39. A needle-shaped component is provided at the bottom of the guide block 40, and the guide block 40 is slidably connected to the top of the conveyor belt 18.
[0047] The motor 2 outputs power to drive the pulley 41 and the spacer gear 4 to move synchronously. After the movement is generated, it is connected to the gear 3 through the interval meshing to achieve the step-by-step transmission effect. Under the appropriate gap, when the placement groove 17 passes the bottom of the guide block 40, it will fall into the upper capsule with gravity and be lifted by the lifting plate 28.
[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic filling device for pharmaceutical bio-capsules comprising a support frame (1), characterized in that, The side of the support frame (1) is fixedly connected with a motor (2), the output end of the motor (2) is fixedly connected with a belt pulley two (41), one side of the belt pulley two (41) is fixedly connected with a spacing gear (4), the top of the support frame (1) is fixedly connected with a fixed frame one (5), the inner wall of the fixed frame one (5) is fixedly connected with a mounting plate (6), the top of the mounting plate (6) is fixedly connected with an L plate (15), the top of the L plate (15) is provided with a plurality of air cylinders one (16), the output end of the air cylinder one (16) is fixedly connected with a filling bin (7), the top of the filling bin (7) is fixedly connected with a plurality of electric telescopic rods one (14), the bottom of the mounting plate (6) is fixedly connected with a drainage bin (8), the top of the filling bin (7) is fixedly connected with a plurality of U-shaped blocks (9), one side of the bottom of the U-shaped block (9) is fixedly connected with a piston (10), the right side of the drainage bin (8) is fixedly connected with a plurality of input pipes (11), one side of the filling bin (7) is provided with a through hole one (12), one side of the drainage bin (8) is provided with a through hole two (13), the inner wall of the support frame (1) is provided with an identification assembly, the top of the support frame (1) is provided with a mixing assembly, the top of the support frame (1) is provided with a cover closing assembly, the top of the support frame (1) is provided with a feeding assembly; The mixing assembly comprises a fixed frame two (19), the top of the fixed frame two (19) is fixedly connected with a stirring bin (20), one side of the stirring bin (20) is rotatably connected with a power rod (21), one side of the outer wall of the power rod (21) is fixedly connected with a belt pulley one (22), the inner wall of the power rod (21) is fixedly connected with a plurality of rotating rods (23), the output end of the motor (2) is fixedly connected with a belt pulley two (41), the top of the stirring bin (20) is fixedly connected with a leakage prevention bin (24); The identification assembly comprises a rotating shaft (25), a plurality of rotating shafts (25) are rotatably connected to the inner wall of the support frame (1), the outer wall of a plurality of rotating shafts (25) is sleeved with a conveyor belt (18), the outer wall of the conveyor belt (18) is provided with a plurality of placing grooves (17), the inner wall of the support frame (1) is fixedly connected with a supporting plate (28) on both sides, one side of the supporting plate (28) is rotatably connected with a plurality of electric telescopic rods two (29), the output end of the electric telescopic rod two (29) is rotatably connected with an opening and closing plate (30), the middle part of the opening and closing plate (30) is provided with a weight sensor (31), the middle part of the support frame (1) is fixedly connected with a middle block (26), the top of the middle block (26) is slidably connected with a collection bin (27), one side of the support frame (1) is rotatably connected with a gear (3); The filling bin (7) is slidably connected to one side of the drainage bin (8), the output end of the electric telescopic rod (14) is fixedly connected with the piston (10), the bottom of the filling bin (7) is provided with a needle-shaped assembly, the filling bin (7) is slidably connected to the inner wall of the placing groove (17), the input pipe (11) is fixedly connected to the bottom of the stirring bin (20), the U-shaped block (9) is slidably connected to the top of the mounting plate (6). The pulley one (22) is connected with the pulley two (41) through the belt; The collecting bin (27) is slidably connected to one side of the support frame (1), the gear (3) is fixedly connected to one side of one of the rotating shafts (25), and the interval gear (4) is in meshing connection with the gear (3).
2. The automatic filling device for pharmaceutical bio-capsules according to claim 1, characterized in that, The cover closing assembly comprises a fixing frame three (32), the fixing frame three (32) is fixedly connected to the top of the support frame (1), a plurality of electric telescopic rods three (33) are fixedly connected to the top of the fixing frame three (32), the output end of the electric telescopic rod three (33) is fixedly connected with the connecting plate (34), a plurality of rubber blocks (35) are fixedly connected to the bottom of the connecting plate (34), a guide plate (36) is fixedly connected to one side of the fixing frame three (32), and a plurality of limiting grooves (37) are formed in the top of the guide plate (36).
3. The automatic filling device for pharmaceutical bio-capsules according to claim 1, characterized in that, The feeding assembly comprises a fixing frame four (38), the fixing frame four (38) is fixedly connected to one side of the top of the support frame (1), and the top of the fixing frame four (38) is fixedly connected with the containing bin (39).
4. The automatic filling device for pharmaceutical bio-capsules according to claim 2, characterized in that, The rubber block (35) is slidably connected to the inner wall of the limiting groove (37), and the rubber block (35) is slidably connected to the top of the conveying belt (18).
5. The automatic filling device for pharmaceutical bio-capsules according to claim 3, characterized in that, The bottom of the guide block (40) is provided with a needle-shaped assembly, and the guide block (40) is slidably connected to the top of the conveying belt (18).