A powder filling device for capsule production

By designing a powder filling device that includes a sliding channel and a linear propulsion component, the problem of insufficient weight caused by the complex structure of existing devices was solved, achieving efficient and precise filling of capsules and improving the finished product qualification rate and automation level.

CN119139137BActive Publication Date: 2026-03-06SANJIN GROUP HUNAN SANJIN PHARMA
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Patent Information

Application Number
CN202411575659.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2026-03-06
Estimated Expiration
2044-11-06

AI Technical Summary

Technical Problem

Existing capsule production equipment has a complex structure and is prone to wear and tear, leading to insufficient weight and defective products during production, which affects production quality.

Method used

A powder filling device was designed, comprising a sliding channel, a support plate, a receiving plate, and a powder supply pipe. The device achieves precise powder filling through a linear propulsion component and a positioning mechanism, and is strictly controlled by a metering scale and a micro vibration motor to ensure that the amount of powder in each capsule is accurate.

Benefits of technology

It improved the finished product qualification rate of capsule production, ensured precise control of the amount of powder in each capsule, reduced blind spots, and improved the degree of automation and production efficiency.

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Abstract

This invention discloses a powder filling device for capsule production, belonging to the field of pharmaceutical capsule production technology. The device includes a square frame with a sliding channel in the middle. A support plate is connected to a linear propulsion assembly. Two cantilever guide rails are arranged above the square frame, and a reset slider is slidably mounted on the cantilever guide rails. A powder supply pipe is provided at the bottom of the platform, connected to a feeding mechanism. The platform is connected to a positioning mechanism. In use, after the left row of capsules is filled, a stepper motor drives a conveyor belt a short distance via a positioning roller. The support plate then moves together with the conveyor belt via a connecting bridge. The receiving plates on the left and right sides of the support plate can alternately reach the receiving station below the powder supply pipe. The staggered receiving plates allow the operator to observe all the capsules to be filled from one direction, ensuring no blind spots in the filling process and enabling operator observation.
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Description

Technical Field

[0001] This invention relates to the field of pharmaceutical capsule manufacturing technology, and in particular to a powder filling device for capsule manufacturing. Background Technology

[0002] Medications encapsulated are generally powders or granules that irritate the esophagus and stomach lining, or those with an unpleasant taste, high volatility, easy breakdown by saliva in the mouth, or easy inhalation into the trachea. Encapsulating these medications protects their efficacy from degradation and also safeguards the digestive and respiratory tracts. Removing the capsule shell could lead to drug loss, waste, and reduced effectiveness. Additionally, some medications need to dissolve and be absorbed in the intestines; capsules protect them from being destroyed by stomach acid.

[0003] Existing equipment has shortcomings in capsule production. The structure of the existing equipment is relatively complex, and energy loss occurs during operation. Even with intelligent machine filling, a small amount of underweight may occur, which will lead to the production of defective capsules and affect the overall production quality. Therefore, there is an urgent need to develop and design a capsule powder filling machine with a sophisticated structure and a high degree of automation. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by providing a powder filling device for capsule production, thereby solving the aforementioned technical problems.

[0005] To solve the above problems, the present invention provides the following technical solution: a powder filling device for capsule production, comprising a square frame, a sliding channel in the middle of the square frame, a support plate slidably installed in the sliding channel, a row of receiving plates on both the left and right sides of the support plate, the support plate being connected to a linear propulsion assembly, two cantilever guide rails above the square frame, a reset slider slidably installed on the cantilever guide rails, a platform at the bottom of the reset slider, a powder supply pipe at the bottom of the platform, the powder supply pipe being connected to a feeding mechanism, the platform being connected to a positioning mechanism, the positioning mechanism including a slot frame on the side wall of the platform, a vertical rod inserted into the slot frame at the top of the support plate, a gap of 30 cm between the two receiving plates, and the left and right rows of receiving plates being staggered, a grinding frame on one side of the square frame, a bottle pretreatment assembly on the grinding frame, auxiliary components for filling capsules to be filled on the receiving plates, a control component on the side of the square frame, and the auxiliary components and the feeding mechanism being electrically connected to the control component.

[0006] Furthermore, an assembly plate is provided on one side of the receiving plate, and the assembly plate is fixedly connected to the side wall of the bearing plate by a threaded rod. A receiving cylinder is provided in the middle of the receiving plate, and a flared opening is provided at the top of the receiving cylinder. The flared opening and the receiving cylinder constitute a receiving space for storing capsules to be filled.

[0007] Furthermore, the linear propulsion assembly includes two planar bearings on the side wall of the frame, with positioning rollers rotatably mounted on one side of each of the two planar bearings. The positioning rollers are connected to each other by a transport belt. The positioning roller at the left end is mounted on the output end of the stepper motor. The transport belt and the top surface of the support plate are connected by a connecting bridge.

[0008] Furthermore, the feeding mechanism includes a power pump on the side wall of the frame, and the output end of the power pump is provided with a drag hose, the end of which is connected to the inside of the powder supply pipe.

[0009] Furthermore, the bottom end of the powder supply pipe is provided with a discharge nozzle arranged in a straight line, and the spacing between the discharge nozzles is equal to the spacing between the two receiving plates.

[0010] Furthermore, the auxiliary component includes a weighing scale disposed on the inner wall of the receiving cylinder for weighing the capsules to be filled, with one scale disposed on the inner wall of each receiving cylinder.

[0011] Furthermore, the auxiliary component also includes a miniature vibration motor, with each receiving cylinder containing a miniature vibration motor.

[0012] Furthermore, the weighing scale, power pump, and micro vibration motor are all electrically connected to the control unit.

[0013] The beneficial effects of this invention are:

[0014] When the device is in use, after the left row of filling is completed, the stepper motor drives the conveyor belt to move a short distance via the positioning roller. Then, the carrier plate moves together with the conveyor belt via the connecting bridge. The receiving plates on the left and right sides of the carrier plate can take turns reaching the receiving station below the powder supply pipe. The vertical rod at the top of the carrier plate will push the slot frame, and then the platform and the powder supply pipe at its bottom will advance a short distance in the longitudinal direction. The powder supply pipe will be aligned with the other row of receiving plates for filling. The staggered receiving plates allow the operator to observe all the capsules to be filled in one direction and ensure that there are no blind spots in the field of vision for all filling operations. The operator can conduct observation, and there are precise control components involved in the entire filling process. The amount of powder to be filled and the filling process are strictly controlled, which greatly improves the qualification rate of the finished capsules. Attached Figure Description

[0015] Figure 1 This is a frontal view of the present invention.

[0016] Figure 2 This is a schematic diagram of the invention from the side.

[0017] Figure 3 This is a schematic diagram of the invention viewed from below.

[0018] Figure 4 This is a schematic diagram showing a cross-section of the present invention.

[0019] Figure 5 This is a partially enlarged view of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] Frame 1, bearing plate 2, vertical rod 201, cantilever beam guide rail 3, platform 4, slot frame 401, powder supply pipe 402, conveyor belt 5, flat shaft seat 501, positioning roller 502, stepper motor 503, connecting bridge 504, power pump 6, towing hose 601, receiving plate 7, assembly plate 701, flared mouth 702, receiving cylinder 703. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0024] Reference Figures 1 to 5The illustrated capsule production powder filling device includes a frame 1. A sliding channel is provided in the middle of the frame 1, and a support plate 2 is slidably installed in the sliding channel. A row of receiving plates 7 is provided on both the left and right sides of the support plate 2. The support plate 2 is connected to a linear propulsion assembly. Two cantilever guide rails 3 are provided above the frame 1. A reset slider is slidably installed on the cantilever guide rails 3. A platform 4 is provided at the bottom of the reset slider. A powder supply pipe 402 is provided at the bottom of the platform 4. The powder supply pipe 402 is connected to a feeding mechanism. The platform 4 is connected to a positioning mechanism. The positioning mechanism includes a slot frame 401 on the side wall of the platform 4. A vertical rod 201 is provided at the top of the support plate 2 and inserted into the slot frame 401. The gap between the two receiving plates 7 is 30 cm, and the left and right rows of receiving plates 7 are staggered. A grinding frame 7 is provided on one side of the frame 1. A bottle pretreatment assembly is provided on the grinding frame 7. An auxiliary component for filling capsules to be filled is provided on the receiving plate 7. A control component is provided on the side of the frame 1. The auxiliary component and the feeding mechanism are electrically connected to the control component. After the left row is filled, the support plate 2 will move back and forth a short distance in the frame 1. The receiving plates 7 on the left and right sides of the support plate 2 can take turns reaching the receiving station below the powder supply pipe 402. The vertical rod 201 at the top of the support plate 2 will push the slot frame 401, and then the platform 4 and the powder supply pipe 402 at its bottom will advance a short distance in the longitudinal direction. The powder supply pipe 402 will be aligned with the other row of receiving plates 7 for filling. The staggered receiving plates 7 allow the staff to observe all the capsules to be filled in one direction and ensure that there are no blind spots in the field of vision for all filling operations. The staff can conduct observation. The control component in this application is a control module with a controller and a pre-completed PLC program in the controller. It is a very mature existing technology and will not be described in detail in this application. The control component can control the filling operation in an orderly manner and can achieve safe, orderly, qualified and standardized filling operations.

[0025] like Figure 1 , 5 As shown, an assembly plate 701 is provided on one side of the receiving plate 7. The assembly plate 701 is fixedly connected to the side wall of the bearing plate 2 by a threaded rod. A receiving cylinder 703 is provided in the middle of the receiving plate 7. A flared opening 702 is provided at the top of the receiving cylinder 703. The flared opening 702 and the receiving cylinder 703 constitute a receiving space for storing capsules to be filled. The capsules to be filled are placed one by one into the receiving space formed by the flared opening 702 and the receiving cylinder 703. The flared opening 702 at the top of the row of receiving plates 7 will receive the medicine powder and enter the capsules to be filled.

[0026] like Figure 1 , 4As shown, the linear propulsion assembly includes two planar bearings 501 on the side wall of the frame 1. A positioning roller 502 is rotatably mounted on one side of each of the two planar bearings 501. The positioning rollers 502 are connected to each other by a transport belt 5. The positioning roller 502 at the left end is mounted on the output end of the stepper motor 503. The transport belt 5 and the top surface of the support plate 2 are connected by a connecting bridge 504. The stepper motor 503 drives the transport belt 5 to rotate a short distance through the positioning rollers 502. Then, the support plate 2 moves together with the transport belt 5 through the connecting bridge 504. The two rows of receiving plates 7 can then be rotated to work. The receiving plate 7 that is not in the work position is disassembled to remove the capsule to be filled, saving operation time.

[0027] like Figure 1 , 2 As shown in Figure 4, the feeding mechanism includes a power pump 6 on the side wall of the frame 1. The output end of the power pump 6 is provided with a drag hose 601. The end of the drag hose 601 is connected to the inside of the powder supply pipe 402. The power pump 6 continuously feeds material to the powder supply pipe 402 through the drag hose 601. When the support plate 2 moves back and forth, the drag hose 601 will move closely with it.

[0028] like Figure 1 , 4 As shown, the bottom end of the powder supply pipe 402 is provided with a discharge nozzle arranged in a straight line. The distance between the discharge nozzles is equal to the distance between the two receiving plates 7. By replacing the powder supply pipe 402 with different models, the distance between the discharge nozzles of the powder supply pipe 402 and the receiving plate 7 can be made to correspond to each other.

[0029] like Figure 1 , 5 As shown, the auxiliary component includes a weighing scale installed on the inner wall of the receiving cylinder 703 for weighing the capsules to be filled. Each receiving cylinder 703 has one such scale on its inner wall. When the powder is filled to the specified amount, the timing feedback is sent to the control component to stop the filling operation. The program controls the filling to be accurate, efficient and error-free, which can greatly improve the filling efficiency.

[0030] like Figure 1 , 5 As shown, the auxiliary component also includes a micro vibration motor. Each container 703 is equipped with a micro vibration motor. After the powder in the capsule is filled, the vibration of the motor can make the powder tend to be flat, so as to facilitate subsequent operations.

[0031] like Figure 1 , 5 As shown, the weighing scale, power pump 6, and micro vibration motor are all electrically connected to the control components. Through the cooperation of the four components, the entire device can achieve efficient and error-free operation.

[0032] Working principle: After the left row of filling is completed, the support plate 2 will move back and forth a short distance within the frame 1. The receiving plates 7 on the left and right sides of the support plate 2 can take turns reaching the receiving station below the powder supply pipe 402. The vertical rod 201 at the top of the support plate 2 will push the slot frame 401, and then the platform 4 and the powder supply pipe 402 at its bottom will advance a short distance in the longitudinal direction. The powder supply pipe 402 will be aligned with the other row of receiving plates 7 to perform the filling operation. The staggered receiving plates 7 allow the operator to observe all the capsules to be filled in one direction and ensure that there are no blind spots in the filling operation. The operator can observe and rotate the capsules to be filled one by one into the receiving cylinder 703. The flared mouth 702 at the top of one row of receiving plates 7 will receive the oil and flow into the capsules to be filled. Depending on the different models and packaging methods of the capsules to be filled, the receiving cylinder 703 is removed and replaced with the corresponding receiving cylinder 703. The spacing between the receiving plates 7 is adjusted according to the diameter of the capsules to be filled, and the different powder supply pipes 402 are replaced accordingly, so that the spacing between the outlets of the powder supply pipes 402 corresponds to the receiving plates 7. The stepper motor 503 drives the conveyor belt 5 to rotate a short distance through the positioning roller 502. Then, the bearing plate 2 moves together with the conveyor belt 5 through the connecting bridge 504. The two rows of receiving plates 7 can be rotated to work. The row of receiving plates 7 that is not in the work position is used to remove the capsules to be filled, saving operation time. The power pump 6 continuously supplies material to the powder supply pipe 402 through the drag hose 601. When the bearing plate 2 moves back and forth, the drag hose 601 will move closely with it.

[0033] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A medicine powder filling device for capsule production, characterized by: The utility model provides a kind of bottle filling device, including frame (1), the middle of frame (1) is provided with sliding channel, slidingly mounted with bearing plate (2) in sliding channel, and the left and right sides of bearing plate (2) are provided with a row of containing plate (7), bearing plate (2) is connected to linear propulsion assembly, the top of frame (1) is provided with two cantilever beam guide rails (3), and reset slider is slidably installed on cantilever beam guide rail (3), and the bottom of reset slider is provided with object table (4), and the bottom of object table (4) is provided with powder supply pipe (402), and powder supply pipe (402) is connected to feeding mechanism, and object table (4) is connected to positioning mechanism, and the positioning mechanism includes notch bracket (401) on the side wall of object table (4), and the top of bearing plate (2) is provided with vertical rod (201) inserted in notch bracket (401), and the gap between two containing plates (7) is thirty centimeters, and the containing plate (7) of left and right rows is staggered, and one side of frame (1) is provided with polishing frame, and bottle body pretreatment assembly is provided on polishing frame, and the containing plate (7) is provided with auxiliary for filling operation to be filled capsule, and the side of frame (1) is provided with control element, and the auxiliary and feeding mechanism are electrically connected with control element. The linear propulsion assembly includes two plane shaft seats (501) on the side wall of frame (1), and the left and right sides of two plane shaft seats (501) are rotatably installed with positioning roller (502), and positioning roller (502) is connected by carrying belt (5), and the left positioning roller (502) is installed on the output end of stepping motor (503), and the top surface of carrying belt (5) and bearing plate (2) are connected by connecting bridge (504).

2. The medicine powder filling device for capsule production according to claim 1, characterized by: One side of the containing plate (7) is provided with an assembly plate (701), which is fixedly connected to the side wall of the bearing plate (2) through a threaded rod. The middle of the containing plate (7) is provided with a containing cylinder (703), and the top end of the containing cylinder (703) is provided with a trumpet mouth (702). The trumpet mouth (702) and the containing cylinder (703) constitute a containing space for storing the capsules to be filled.

3. The medicine powder filling device for capsule production according to claim 1, characterized by: The feeding mechanism includes a power pump (6) on the side wall of the frame (1), and the output end of the power pump (6) is provided with a trailing hose (601), and the end of the trailing hose (601) is connected to the inside of the powder supply pipe (402).

4. The medicine powder filling device for capsule production according to claim 1, characterized by: The bottom end of the powder supply pipe (402) is provided with a linear array of discharge nozzles, and the spacing of the discharge nozzles is equal to the spacing between the two containing plates (7).

5. The medicine powder filling device for capsule production according to claim 1, characterized by: The auxiliary includes a weighing scale provided on the inner wall of the containing cylinder (703) and weighing the capsules to be filled. Each inner wall of the containing cylinder (703) is provided with one.

6. The medicine powder filling device for capsule production according to claim 1, characterized by: The auxiliary further includes a micro-vibration motor, and each containing cylinder (703) is provided with a micro-vibration motor.

7. The device for filling capsules with a powder according to claim 3, characterized in that: The power pump (6) is electrically connected with the control element.

8. The medicine powder filling device for capsule production according to claim 5, characterized by: The weighing scale is electrically connected with the control element.

9. The medicine powder filling device for capsule production according to claim 6, characterized by: The micro-vibration motor is electrically connected with the control element.

Citation Information

Patent Citations

  • Capsule filling machine capable of realizing automatic charging

    CN203935424U

  • Capsule filling device capable of adjusting filling amount through height

    CN213311772U

  • Medicinal powder adding device for producing capsules

    CN219896438U

  • Chemical capsule filling machine

    CN221512887U