A hollow capsule screening device

By setting grooves on the conveyor belt and utilizing a fan design, the problem of qualified capsules being mistakenly rejected during the screening of hollow capsules was solved, achieving the effect of reducing waste and improving screening efficiency.

CN224423519UActive Publication Date: 2026-06-30SHANGHAI KAIBAO XINYI (XINXIANG) PHARM CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI KAIBAO XINYI (XINXIANG) PHARM CO LTD
Filing Date
2025-07-28
Publication Date
2026-06-30

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Abstract

A hollow capsule screening device effectively solves the problem of waste caused by the rejection of qualified capsules. It includes a frame with a conveyor belt having multiple grooves. A hopper is located on one side of the frame, with its bottom contacting the conveyor belt. A vibrating motor is installed on the side of the hopper. When a capsule enters a groove in the hopper, it must not protrude from the surface of the conveyor belt, and capsules not entering a groove cannot continue to be conveyed forward. A first fan is installed inside the conveyor belt, blowing upwards to blow the hollow capsules away from the conveyor belt. A second fan is located on one side of the frame, blowing horizontally to blow the hollow capsules towards a waste bin. This invention has a simple and ingenious structure, is easy to use, and ensures that qualified capsules are hidden in the grooves while hollow capsules are blown away from the conveyor belt and towards the waste bin for collection, avoiding the rejection of qualified capsules, reducing waste, and lowering production costs.
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Description

Technical Field

[0001] This utility model relates to the field of capsule production technology, and in particular to a screening device for empty capsules. Background Technology

[0002] During capsule production, empty capsules inevitably occur. These need to be removed before packaging to ensure the quality of the packaged product. In existing technologies, air separation is mostly used to remove empty capsules. However, because capsules are lightweight, they are easily affected by the blower, which can cause qualified capsules to be rejected, resulting in waste. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides an empty capsule screening device, which effectively solves the problem of waste caused by the rejection of qualified capsules.

[0004] The technical solution to the problem is as follows: a hollow capsule screening device, including a frame, a conveyor belt on the frame, multiple grooves on the conveyor belt, a hopper on one side of the frame, the bottom of the hopper contacting the conveyor belt, a vibrating motor on the side of the hopper, when a capsule enters a groove in the hopper, the capsule does not protrude from the upper surface of the conveyor belt and capsules that do not enter a groove cannot continue to be conveyed forward, a first fan is installed inside the conveyor belt, the first fan blows air upward to blow the hollow capsules away from the conveyor belt, a second fan is installed on one side of the frame, the second fan blows air horizontally to blow the hollow capsules toward the waste bin.

[0005] Preferably, the bottom of the frame is provided with multiple support legs.

[0006] Preferably, the frame is provided with supports on both sides, the supports are provided with connecting holes, the hopper is provided with connecting plates extending into the connecting holes on both sides, and springs connected to the connecting plates are provided on both sides of the connecting holes.

[0007] Preferably, the frame is provided with a cover plate, one end of which is connected to a second fan, and the other end of which is provided with an arc-shaped plate with its opening facing the waste bin.

[0008] Preferably, the end of the frame is provided with a receiving box.

[0009] This invention features a simple and ingenious structure that is easy to use. Qualified capsules are hidden in the groove, while hollow capsules are blown away from the conveyor belt and into the waste bin for collection, thus avoiding the rejection of qualified capsules, reducing waste, and lowering production costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of an empty capsule screening device according to this utility model.

[0011] Figure 2This is a cross-sectional schematic diagram of a hollow capsule screening device according to the present invention.

[0012] Figure 3 This utility model relates to a hollow capsule screening device. Figure 2 A schematic diagram of the cross-sectional structure of AA.

[0013] Figure 4 This is a schematic diagram of the structure of a hollow capsule screening device after the hopper has been removed.

[0014] Figure 5 This is a schematic diagram of the hopper structure in a hollow capsule screening device according to this utility model. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0016] Depend on Figures 1 to 5 It is known that a hollow capsule screening device includes a frame 1, with multiple support legs 9 at the bottom of the frame 1, a conveyor belt 2 on the frame 1, multiple grooves 3 on the conveyor belt 2, a hopper 4 on one side of the frame 1, the bottom of the hopper 4 contacting the conveyor belt 2, a vibrating motor 5 on the side of the hopper 4, when a capsule in the hopper 4 enters the groove 3, the capsule does not protrude from the upper surface of the conveyor belt 2 and the capsule that does not enter the groove 3 cannot continue to be conveyed forward, a first fan 6 is installed inside the conveyor belt 2, the first fan 6 blows air upward to blow the hollow capsule away from the conveyor belt 2, a second fan 7 is installed on one side of the frame 1, the second fan 7 blows air horizontally to blow the hollow capsule toward the waste bin 8.

[0017] In practical use, this utility model

[0018] The capsules are placed into the hopper 4, the equipment is started, and the vibrating motor 5 causes the hopper 4 to vibrate. The conveyor belt 2 is equipped with a power unit (not shown in the figure). Under the action of vibration, the capsules are filled into the grooves 3 on the conveyor belt 2. Since the bottom of the hopper 4 is in contact with the conveyor belt 2, all the capsules conveyed by the conveyor belt 2 are located inside the grooves 3. When the conveyor belt 2 moves forward, the first fan 6 blows air upward. The air force is just enough to blow the hollow capsules away from the grooves 3 and away from the position of the conveyor belt 2. At this time, under the action of the second fan 7, the hollow capsules are blown laterally into the waste bin 8 for collection. The capsules with intact filling are located in the grooves 3 and continue to move forward, realizing the rejection of hollow capsules.

[0019] During the air separation process, the qualified capsules are located in the groove 3 and are not affected by the second fan 7, so they will not fall into the waste bin 8, thus avoiding the waste of qualified capsules.

[0020] The size of the groove 3 on the conveyor belt 2 is slightly larger than the size of the capsule, so that the capsule can easily enter the groove 3 and does not protrude beyond the upper surface of the conveyor belt 2, thus preventing it from falling out of the groove 3 under the action of the second fan 7.

[0021] The frame 1 has supports 10 on both sides, and the supports 10 have connecting holes 11. The hopper 4 has connecting plates 12 on both sides that extend into the connecting holes 11. The connecting holes 11 have springs 13 on both sides that connect to the connecting plates 12. The hopper 4 is connected to the frame 1 through the supports 10. The connecting plates 12 can slide horizontally in the connecting holes 11 of the supports 10 under the action of the vibration motor 5. The springs 13 reduce rigid impact, so that the capsules enter the groove 3 from the bottom of the hopper 4 under the action of vibration, realizing vibration feeding and avoiding jamming.

[0022] The frame 1 is equipped with a cover plate 14. One end of the cover plate 14 is connected to the second fan 7, and the other end of the cover plate 14 is equipped with an arc plate with the opening facing the waste bin 8. The cover plate 14 can prevent the capsule from being blown to the outside, so that it slides down into the waste bin 8 for collection under the action of the second fan 7.

[0023] The end of the frame 1 is equipped with a receiving box 15. When the conveyor belt 2 flips, it pours the conveyed capsules into the receiving box 15. Alternatively, a conveyor belt can be set up to transport the capsules to the packaging line for packaging.

[0024] Compared with the prior art, this utility model has the following advantages: by setting grooves on the conveyor belt, qualified capsules can be hidden in the grooves and not participate in air separation, reducing the waste of qualified capsules, thereby reducing rework and improving screening efficiency.

Claims

1. An empty capsule screening device, characterized in that, Includes a frame (1), a conveyor belt (2) is provided on the frame (1), multiple grooves (3) are provided on the conveyor belt (2), a hopper (4) is provided on one side of the frame (1), the bottom of the hopper (4) is in contact with the conveyor belt (2), a vibrating motor (5) is provided on the side of the hopper (4), when the capsule in the hopper (4) enters the groove (3), the capsule does not protrude from the upper surface of the conveyor belt (2) and cannot continue to be conveyed forward if it does not enter the groove (3), a first fan (6) is provided inside the conveyor belt (2), the first fan (6) blows air upward to blow the hollow capsule away from the conveyor belt (2), a second fan (7) is provided on one side of the frame (1), the second fan (7) blows air horizontally to blow the hollow capsule toward the waste bin (8).

2. The empty capsule screening device according to claim 1, characterized in that, The frame (1) is provided with multiple support legs (9) at the bottom.

3. The empty capsule screening device according to claim 1, characterized in that, The frame (1) is provided with brackets (10) on both sides, and the brackets (10) are provided with connecting holes (11). The hopper (4) is provided with connecting plates (12) extending into the connecting holes (11) on both sides, and springs (13) connected to the connecting plates (12) are provided on both sides of the connecting holes (11).

4. The empty capsule screening device according to claim 1, characterized in that, The frame (1) is provided with a cover plate (14), one end of the cover plate (14) is connected to the second fan (7), and the other end of the cover plate (14) is provided with an arc plate with the opening facing the waste bin (8).

5. The empty capsule screening device according to claim 1, characterized in that, The frame (1) is provided with a receiving box (15) at its end.