Capsule filling mechanism

Abstract

The invention relates to the technical field of capsule packaging equipment, in particular to a capsule filling mechanism which comprises a rotary table, a metering panel is connected to the upper portion of the rotary table, a blocking piece is arranged below the metering panel, a cam is connected to the lower portion of the rotary table and rotates in a cam groove, and the track of the cam groove is close to or away from the rotating center in the radial direction. The cam is connected with the blocking piece and used for driving the blocking piece to block and achieve metering panel discharging. When the mould hole of the metering panel is filled with compacted quicksand type powder, the cam drives the blocking piece to horizontally move in the radial direction away from the rotation center so as to block the quicksand type powder in the mould hole, prevent the quicksand type powder from sliding relatively and prevent the quicksand type powder from scattering all around, and the metering panel rotates to the front of the position of the lower module filled with the empty capsule body. The cam drives the blocking piece to horizontally move in the direction close to the rotating center in the radial direction, when the metering panel rotates to the position of the lower module, the blocking piece horizontally moves in place at the same time, so that a hole of the blocking piece is aligned with a metering panel die hole and an empty capsule body, quicksand type medicine powder can fall into the empty capsule body conveniently, and a finished capsule is manufactured.

Description

Technical Field

[0001] This invention relates to the field of capsule packaging equipment technology, and more particularly to a capsule filling mechanism. Background Technology

[0002] Before filling capsules with pharmaceutical powder, fully automatic hard capsule filling machines assess the physical properties of the powder (powder density, bulk density, viscosity, flowability, ease of column formation, etc.) and adjust appropriate parameters on the equipment to produce qualified finished capsules that meet customer needs. With societal progress, pharmaceutical processes are constantly innovating, leading to an increasing variety of pharmaceutical powder types and properties. To adapt to this development and meet diverse customer demands, fully automatic hard capsule filling machines are becoming increasingly feature-rich and diverse. Currently, a type of flowing powder with excellent flowability, difficulty in forming columns during filling, and a tendency to leak and spill powder is frequently seen on the market. Capsules made with this powder not only fail to meet national and industry standards but also do not meet customer production requirements. Flowing powder poses a significant challenge to the fully automatic hard capsule filling machine industry, but also represents a huge market opportunity. While flowing powder does not form columns during compaction, powder spills out through gaps as the metering disc rotates, ultimately resulting in finished capsules that do not meet customer requirements or regulations. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a capsule filling mechanism.

[0004] To achieve the above objectives, the present invention proposes a capsule filling mechanism, comprising: a turntable, a metering disc connected above the turntable, a baffle plate provided below the metering disc, a cam connected below the turntable, the cam rotating in a cam groove, the trajectory of the cam groove being radially close to or away from the rotation center, and the cam connected to the baffle plate for driving the baffle plate to block and realize the feeding of the metering disc. When the measuring disc is filled with compacted liquid powder, the cam drives the baffle to move radially away from the center of rotation to block and hold the liquid powder in the disc, preventing it from sliding and spilling outwards. Then, before the measuring disc rotates to the lower module containing the empty capsule, the cam drives the baffle to move radially towards the center of rotation. When the measuring disc rotates to the lower module, the baffle moves into position so that the hole of the baffle is aligned with the measuring disc's die hole and the empty capsule, allowing the liquid powder to fall into the empty capsule and form a finished capsule. By setting the cam and baffle structure, the liquid powder in the finished capsule is not lost, and the dosage of the powder in the capsule can be strictly controlled to meet the specified requirements.

[0005] As an optional implementation, the capsule filling mechanism provided by the present invention further includes a powder-holding base plate, which is disposed below the baffle and contacts the baffle. By providing the powder-holding base plate, it supports the baffle during filling, allowing the baffle to fit more tightly with the metering disc and preventing the flowing powder from slipping out.

[0006] As an optional implementation, the capsule filling mechanism provided by the present invention further includes a rotating base and a metering base. The rotating base is connected to the metering base, and the rotating base drives the metering base to rotate. The metering base is connected to the turntable, and the metering base drives the turntable to rotate. The metering base has a cam groove located below the turntable. By setting the rotating base and the metering base, the rotating base drives the metering base to rotate, which in turn drives the turntable to rotate. The turntable then drives the metering disc and the cam at the bottom of the turntable to rotate within the cam groove.

[0007] As an optional implementation, the capsule filling mechanism provided by the present invention further includes a powder sweeping assembly. The powder sweeping assembly includes a protective cover, a support, and a powder sweeper. The powder sweeper is connected to the turntable, and its lower end has a powder sweeping channel. The support is connected to the metering base, and the outer side of the support is connected to the protective cover. This prevents powder from escaping or escaping during operation.

[0008] As an optional implementation, in the capsule filling mechanism provided by the present invention, a sealing sleeve is provided on the outer side of the metering base, and the sealing sleeve is sealed to the support.

[0009] As an optional implementation, in the capsule filling mechanism provided by the present invention, the capsule filling mechanism further includes a trachea storage chamber and a trachea connector. The trachea storage chamber is provided in the support, and the trachea connector is provided in the trachea storage chamber. One end of the trachea connector is connected to the metering base through an internal air passage, and the other end of the trachea connector is used to connect a trachea to allow air to be supplied into the capsule filling mechanism. The trachea storage chamber is used to store the trachea.

[0010] As an optional implementation, in the capsule filling mechanism provided by the present invention, the support also includes a powder collection and processing channel. After the protective cover and the support collect the powder, a powder sweeper sweeps the powder into the powder collection and processing channel as the turntable rotates for further processing.

[0011] As an optional implementation, in the capsule filling mechanism provided by the present invention, the capsule filling mechanism further includes a filling rod for filling powder into the die holes on the metering disc.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The capsule filling mechanism provided by the present invention includes a turntable with a metering disc connected above it and a baffle plate below it. A cam is connected below the turntable, and the cam rotates within a cam groove. The trajectory of the cam groove moves radially towards or away from the center of rotation. The cam connects to the baffle plate to drive the baffle plate to block and facilitate the feeding of the metering disc. When the die hole of the metering disc is filled with compacted quicksand-type powder, the cam drives the baffle plate to translate radially away from the center of rotation to block and support the quicksand-type powder in the die hole, preventing... The quicksand-type powder slides relatively, preventing it from spilling outwards. Then, before the metering disc rotates to the lower module position containing the empty capsule, the cam drives the baffle to translate radially towards the center of rotation. When the metering disc rotates to the lower module position, the baffle simultaneously translates into place, aligning the baffle's hole with the metering disc's die hole and the empty capsule, so that the quicksand-type powder falls into the empty capsule, thus forming the finished capsule. By setting the cam and baffle structure, the quicksand-type powder in the finished capsule is not lost, and the dosage of the powder in the capsule can be strictly controlled to meet the specified requirements. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the capsule filling mechanism provided by the present invention;

[0015] Figure 2 This is a cross-sectional view of the capsule filling mechanism provided by the present invention.

[0016] Figure 3 This is a schematic diagram of the powder sweeping assembly of the capsule filling mechanism provided by the present invention;

[0017] Figure 4 A schematic diagram showing the structural location of the air tube storage chamber of the powder sweeping assembly in the capsule filling mechanism provided by the present invention.

[0018] [Explanation of Labels in the Attached Image]

[0019] 1. Turntable; 2. Metering plate; 3. Baffle; 4. Cam; 5. Cam groove; 6. Powder base plate; 7. Rotating base; 8. Metering base; 9. Protective cover; 10. Support; 11. Powder sweeper; 12. Centralized powder processing channel; 13. Air pipe storage chamber; 14. Air pipe connector; 15. Filling rod. Detailed Implementation

[0020] The technical solutions of 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0022] To address the problem that existing capsule filling machines fail to form a column during the compaction of quicksand-type pharmaceutical powder, resulting in powder spilling out through gaps and ultimately failing to meet quality requirements, this invention provides a capsule filling mechanism, such as... Figures 1-4 As shown, it includes a turntable 1, a metering disc 2 connected above the turntable 1, a baffle 3 provided below the metering disc 2, a cam 4 connected below the turntable 1, the cam 4 rotating in a cam groove 5, the trajectory of the cam groove 5 radially approaching or away from the center of rotation, and the cam 4 connected to the baffle 3 for driving the baffle 3 to block and realize the feeding of the metering disc 2. When the die hole of the measuring disc 2 is filled with compacted quicksand-type powder, the cam 4 drives the baffle 3 to translate radially away from the center of rotation to block and support the quicksand-type powder in the die hole, preventing the quicksand-type powder from sliding relative to each other and thus preventing it from spilling outwards. Subsequently, before the measuring disc 2 rotates to the position of the lower module containing the empty capsule, the cam 4 drives the baffle 3 to translate radially towards the center of rotation. When the measuring disc 2 rotates to the position of the lower module, the baffle 3 simultaneously translates into position so that the hole of the baffle 3 is aligned with the die hole of the measuring disc 2 and the empty capsule, so that the quicksand-type powder falls into the empty capsule, thus making the finished capsule. By setting the structure of the cam 4 and the baffle 3, the quicksand-type powder in the finished capsule is not lost, and the dosage of the powder in the capsule can be strictly controlled to meet the specified requirements.

[0023] like Figure 2 As shown, in the capsule filling mechanism provided by the present invention, the capsule filling mechanism further includes a powder-holding base plate 6, which is disposed below the baffle 3 and contacts the baffle 3. By setting the powder-holding base plate 6, the powder-holding base plate 6 plays a supporting role for the baffle 3 during filling, which enables the baffle 3 to fit more tightly with the metering disc 2 and prevents the quicksand-type powder from sliding out.

[0024] Furthermore, in the capsule filling mechanism provided by the present invention, the capsule filling mechanism further includes a rotating base 7 and a metering base 8. The rotating base 7 is connected to the metering base 8, and the rotating base 7 drives the metering base 8 to rotate. The metering base 8 is connected to the turntable 1, and the metering base 8 drives the turntable 1 to rotate. The metering base 8 is provided with a cam groove 5 located below the turntable 1. By setting the rotating base 7 and the metering base 8, the rotating base 7 drives the metering base 8 to rotate, which in turn drives the turntable 1 to rotate. The turntable 1 then drives the metering disc 2 and the cam 4 at the lower part of the turntable 1 to rotate within the cam groove 5.

[0025] like Figure 3 As shown, in the capsule filling mechanism provided by the present invention, the capsule filling mechanism further includes a powder sweeping assembly. The powder sweeping assembly includes a protective cover 9, a support 10, and a powder sweeper 11. The powder sweeper 11 is connected to the turntable 1, and a powder sweeping channel is provided at the lower end of the powder sweeper 11. The support 10 is connected to the metering base 8, and the outer side of the support 10 is connected to the protective cover 9. This prevents the powder from escaping or escaping during operation.

[0026] Furthermore, a sealing sleeve is provided on the outer side of the metering base 8, and the sealing sleeve is sealed to the support 10 to ensure the airtightness of the entire capsule filling mechanism and prevent the flow of quicksand-type medicine powder from escaping.

[0027] In addition, such as Figure 4 As shown, in the capsule filling mechanism provided by the present invention, the capsule filling mechanism further includes a trachea storage chamber 13 and a trachea connector 14. The trachea storage chamber 13 is provided in the support 10, and the trachea connector 14 is provided in the trachea storage chamber 13. One end of the trachea connector 14 is connected to the metering base 8 through an internal air passage, and the other end of the trachea connector 14 is used to connect a trachea to allow air to be supplied to the capsule filling mechanism. The trachea storage chamber 13 is used to store the trachea. The trachea connector 14 is installed in the trachea storage chamber 13 inside the mechanism, i.e., in the support 10. After the trachea is connected to the trachea connector 14, compressed air can be supplied to the inside of the mechanism through the internal air passage. The supplied compressed air can fill every gap inside the mechanism to form an internal positive pressure, preventing external powder from entering the inside of the mechanism and ensuring the cleanliness of the inside of the mechanism. The trachea for supplying compressed air can be placed in the trachea storage chamber 13.

[0028] Furthermore, in the capsule filling mechanism provided by the present invention, the support 10 is also provided with a powder collection and processing channel 12. After the protective cover 9 and the support 10 collect the powder, the powder sweeper 11 sweeps the powder into the powder collection and processing channel 12 for subsequent processing as the turntable 1 rotates.

[0029] In the capsule filling mechanism provided by the present invention, the capsule filling mechanism further includes a filling rod 15, which is used to fill the mold hole on the metering plate 2 with medicine powder.

[0030] The capsule filling mechanism provided by this invention is used as follows: the filling rod 15 presses the liquid sand-type powder on the upper surface of the measuring plate 2 into the mold hole of the measuring plate 2. The cam 4 drives the baffle 3 to translate radially away from the rotation center to block and hold the liquid sand-type powder in the mold hole, preventing the liquid sand-type powder from sliding relative to each other and thus preventing it from falling to the surroundings. Then, before the measuring plate 2 rotates to the lower module position containing the empty capsule body, the cam 4 drives the baffle 3 to translate radially towards the rotation center. When the measuring plate 2 rotates to the lower module position, the baffle 3 simultaneously translates into position so that the hole of the baffle 3 is aligned with the mold hole of the measuring plate 2 and the empty capsule body. Then, the liquid sand-type powder is pressed into the empty capsule body by the filling rod 15 to make the finished capsule.

[0031] It should be understood that the above description of specific embodiments of the present invention is only for illustrating the technical approach and features of the present invention, and is intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the present invention is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of the present invention should be covered within the protection scope of the present invention.

Claims

1. A capsule filling mechanism, characterized in that, Includes a turntable (1), with a metering disc (2) connected above the turntable (1), a baffle (3) provided below the metering disc (2), and a cam (4) connected below the turntable (1). The cam (4) rotates in a cam groove (5), and the trajectory of the cam groove (5) is radially close to or away from the rotation center. The cam (4) is connected to the baffle (3) to drive the baffle (3) to block and realize the feeding of the metering disc (2).

2. The capsule filling mechanism according to claim 1, characterized in that, The capsule filling mechanism also includes a powder base plate (6), which is located below the baffle (3) and is in contact with the baffle (3).

3. The capsule filling mechanism according to claim 1, characterized in that, The capsule filling mechanism further includes a rotating base (7) and a metering base (8). The rotating base (7) is connected to the metering base (8). The rotating base (7) drives the metering base (8) to rotate. The metering base (8) is connected to the turntable (1). The metering base (8) drives the turntable (1) to rotate. The cam groove (5) is provided on the metering base (8) below the turntable (1).

4. The capsule filling mechanism according to claim 3, characterized in that, The capsule filling mechanism further includes a powder sweeping assembly, which includes a protective cover (9), a support (10), and... Powder sweeper The powder sweeper is connected to the turntable (1), and the lower end of the powder sweeper is provided with a powder sweeping channel (11). The support (10) is connected to the metering base (8), and the outer side of the support (10) is connected to the protective cover (9).

5. The capsule filling mechanism according to claim 4, characterized in that, The outer side of the metering base (8) is fitted with a sealing sleeve, which is sealed to the support (10).

6. The capsule filling mechanism according to claim 4, characterized in that, The capsule filling mechanism also includes a trachea storage chamber (13) and a trachea connector (14). The trachea storage chamber (13) is provided in the support (10), and the trachea connector (14) is provided in the trachea storage chamber (13). One end of the trachea connector (14) is connected to the metering base (8) through an internal airway, and the other end of the trachea connector (14) is used to connect a trachea to ventilate into the capsule filling mechanism. The trachea storage chamber (13) is used to store the trachea.

7. The capsule filling mechanism according to claim 4, characterized in that, The support (10) is also equipped with a powder central processing channel (12).

8. The capsule filling mechanism according to claim 1, characterized in that, The capsule filling mechanism also includes a filling rod (15) for filling powder into the die holes on the metering disc (2).

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