Medicinal powder recovery device for capsule filling machine

Abstract

The utility model discloses a medicine powder recovery device for a capsule filling machine, which comprises a feed hopper and a metering and filling assembly connected with the bottom of the feed hopper, and further comprises a medicine powder recovery box, a first recovery pipe, a connecting crusher, a pneumatic conveyor and a cyclone separator which are connected in sequence, the first recycling pipe is arranged on one side of the medicine powder recycling box, a powder outlet of the cyclone separator is connected with the feeding hopper, the crusher is used for crushing powder columns to form medicine powder to pass through, the pneumatic conveyor is provided with an air inlet, a positive pressure opening and a negative pressure opening, the negative pressure opening is connected with the crusher, the positive pressure opening is connected with the cyclone separator, and the negative pressure opening is connected with the negative pressure opening. And the cyclone separator is used for separating medicine powder from air. The device has the advantages of being simple, small and compact in overall structure.

Description

Technical Field

[0001] The utility model relates to the technical field of food and medicine packaging, in particular to a medicine powder recovery device for a capsule filling machine. Background Art

[0002] During the powder filling process, some powder leaks from a capsule filling machine and scatters into the powder collection box below the metering tray. Recycling this powder requires frequent manual removal of the collection box. This operation not only poses a risk of injury but also reduces production efficiency and contaminates the powder. Existing powder recovery and reuse devices for capsule filling machines, such as those disclosed in patent CN111407662A, utilize a vacuum loader, a bulky crusher, and a vacuum cleaner to achieve powder recovery and reuse. This results in a complex structure and takes up considerable space. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a medicine powder recovery device for a capsule filling machine which has a simple and compact overall structure.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A powder recovery device for a capsule filling machine comprises a feed hopper and a metering filling assembly connected to the bottom of the feed hopper, and further comprises a powder recovery box, a first recovery pipe, a connecting crusher, a pneumatic conveyor and a cyclone separator connected in sequence. The powder recovery box is located below the metering filling assembly, the first recovery pipe is arranged on one side of the powder recovery box, the powder outlet of the cyclone separator is connected to the feed hopper, the crusher is used to crush the powder column to form powder and allow the powder to pass through, the pneumatic conveyor is provided with an air inlet, a positive pressure port and a negative pressure port, the negative pressure port is connected to the crusher, the positive pressure port is connected to the cyclone separator, and the cyclone separator is used to separate powder from air.

[0006] As a further improvement of the above technical solution:

[0007] The medicine powder recovery box, the first recovery pipe, the crusher, the pneumatic conveyor and the cyclone separator are all detachably connected to each other via joints.

[0008] The crusher, the pneumatic conveyor and the cyclone separator are arranged in parallel with the powder recovery box, and the first recovery pipe is provided with a rounded corner connecting the powder recovery box and the crusher.

[0009] The pneumatic conveyor is detachably connected to the cyclone separator through a second recovery pipe.

[0010] The second recovery pipe is a hose.

[0011] The cyclone separator is detachably connected to the feed hopper via a third recovery pipe.

[0012] The cyclone separator comprises a cyclone barrel and an end cover. The bottom of the cyclone barrel is connected to the feed hopper, and the top is detachably connected to the end cover.

[0013] The end cover is provided with an air inlet and an air outlet, and the air outlet is equipped with a filter screen, and the filter screen is used to prevent the medicine powder from being discharged with the wind.

[0014] The first recovery tube is a double-mirror tube.

[0015] The bottom of the medicine powder recovery box is provided with a guide slope for guiding the medicine powder to be transported to the first recovery pipe.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The disclosed drug powder recovery device for a capsule filling machine utilizes a pneumatic conveyor as the power source for powder recovery. Simply by introducing ordinary compressed air into the air inlet, the material can be conveyed with negative pressure at one end and positive pressure at the other. Compared to conveying using a vacuum loader, the pneumatic conveyor's conveying power is easily accessible and adjustable. Furthermore, a crusher pulverizes the drug column during conveying, maintaining an unobstructed pipeline and facilitating powder delivery. Furthermore, the recovery device boasts a simple and compact overall structure. The first recovery pipe is located on one side of the powder recovery box, which does not significantly increase the overall height and provides a more compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of a medicine powder recovery device for a capsule filling machine.

[0019] The numbers in the figure represent: 1. feed hopper; 2. metering and filling assembly; 3. powder recovery box; 4. first recovery pipe; 41. fillet; 5. crusher; 6. pneumatic conveyor; 7. cyclone separator; 71. cyclone tube; 72. end cover; 73. exhaust port; 8. joint; 9. second recovery pipe; 10. third recovery pipe. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0023] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," "connect," "fix," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0024] Figure 1 An embodiment of the utility model is shown as a medicine powder recovery device for a capsule filling machine. The medicine powder recovery device for a capsule filling machine of this embodiment includes a feed hopper 1 and a metering and filling assembly 2 connected to the bottom of the feed hopper 1, and also includes a medicine powder recovery box 3, a first recovery pipe 4, a connecting crusher 5, a pneumatic conveyor 6 and a cyclone separator 7 connected in sequence. The medicine powder recovery box 3 is located below the metering and filling assembly 2, and the first recovery pipe 4 is provided on one side of the medicine powder recovery box 3. The powder outlet of the cyclone separator 7 is connected to the feed hopper 1, and the crusher 5 is used to crush the powder column to form medicine powder and allow the medicine powder to pass through. The pneumatic conveyor 6 is provided with an air inlet, a positive pressure port and a negative pressure port. The negative pressure port is connected to the crusher 5, and the positive pressure port is connected to the cyclone separator 7. The cyclone separator 7 is used to separate medicine powder from air.

[0025] The powder recovery device for a capsule filling machine is used. During the process of filling capsules with powder, powder and powder columns scattered by a metering and filling component 2 are collected by a powder recovery box 3. The powder and powder columns collected in the powder recovery box 3 are conveyed by a pneumatic conveyor 6 under negative pressure to a first recovery pipe 4 to a crusher 5. The crusher 5 crushes the powder columns into powder and allows the powder to pass through. The powder is then conveyed by a pneumatic conveyor 6 under positive pressure to a cyclone separator 7. The cyclone separator 7 separates the powder and air. The separated powder enters a feed hopper 1 through a powder outlet in a working gap of the pneumatic conveyor 6 to achieve recycling.

[0026] The drug powder recovery device for a capsule filling machine uses a pneumatic conveyor 6 as a power source for drug powder recovery. It only requires ordinary compressed air to be introduced into the air inlet to achieve negative pressure at one end and positive pressure at the other end to transport the material. Compared with using a vacuum feeder for transportation, the transport power of the pneumatic conveyor 6 is easy to obtain and the size is conveniently adjusted. At the same time, the crusher 5 crushes the drug column during transportation, keeping the pipeline unobstructed and facilitating drug powder transportation. In addition, the recovery device has a simple and compact overall structure. The first recovery pipe 4 is located on one side of the drug powder recovery box 3, which does not significantly increase the overall height and has a more compact structure. Preferably, the crusher 5 is an ordinary filter. The drug column collides when passing through the built-in filter screen and is broken up after the collision to form drug powder that passes through the filter screen. The structure is simple and the cost is low.

[0027] Furthermore, in this embodiment, the powder recovery box 3, the first recovery pipe 4, the crusher 5, the pneumatic conveyor 6 and the cyclone separator 7 are all detachably connected to each other via a joint 8. Connection via the joint 8 facilitates disassembly and cleaning of the components.

[0028] Furthermore, in this embodiment, the crusher 5, pneumatic conveyor 6, and cyclone separator 7 are arranged parallel to the powder recovery box 3. A rounded corner 41 is provided on the first recovery pipe 4, connecting the powder recovery box 3 and the crusher 5. This further reduces the space occupied by the recovery device, and the use of the rounded corner 41 prevents powder from adhering to the corner, making it easier to clean.

[0029] Furthermore, in this embodiment, the pneumatic conveyor 6 is detachably connected to the cyclone separator 7 via the second recovery pipe 9, which facilitates disassembly and cleaning.

[0030] Furthermore, in this embodiment, the second recovery pipe 9 is a hose, which is convenient for adjusting the connection and installation position.

[0031] Furthermore, in this embodiment, the cyclone separator 7 is detachably connected to the feed hopper 1 via the third recovery pipe 10, which facilitates disassembly and cleaning.

[0032] Furthermore, in this embodiment, the cyclone separator 7 includes a cyclone tube 71 and an end cover 72. The bottom of the cyclone tube 71 is connected to the feed hopper 1, and the top is detachably connected to the end cover 72. It is easy to process and clean.

[0033] Furthermore, in this embodiment, the end cap 72 is provided with an air inlet and an air outlet 73. The air outlet 73 is equipped with a filter screen to prevent the discharge of powdered medicine with the wind. The filter screen on the air outlet 73 only allows air to pass through, but cannot pass the powdered medicine carried by the wind. When the pneumatic conveyor 6 is intermittently operating, the powdered medicine remaining on the filter screen falls back into the cyclone 71 and is ultimately recovered into the feed hopper 1.

[0034] Furthermore, in this embodiment, the first recovery tube 4 is a double-mirror tube, which prevents powder from sticking, reduces powder residue, improves powder delivery efficiency, and is easy to clean.

[0035] Furthermore, in this embodiment, a guide slope is provided at the bottom of the powder recovery box 3 for guiding the powder to be transported to the first recovery pipe 4. This facilitates the powder in the powder recovery box 3 to smoothly enter the first recovery pipe 4 through the guide slope at the bottom, thereby improving the recovery efficiency.

[0036] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the scope of protection of the present invention.

Claims

1. A drug powder recovery device for a capsule filling machine, comprising a feed hopper (1) and a metering and filling assembly (2) connected to the bottom of the feed hopper (1), characterized in that: The invention also comprises a medicine powder recovery box (3), a first recovery pipe (4), a connecting crusher (5), a pneumatic conveyor (6) and a cyclone separator (7) which are connected in sequence. The medicine powder recovery box (3) is located below the metering and filling assembly (2). The first recovery pipe (4) is arranged on one side of the medicine powder recovery box (3). The powder outlet of the cyclone separator (7) is connected to the feed hopper (1). The crusher (5) is used to crush the powder column to form medicine powder and allow the medicine powder to pass through. The pneumatic conveyor (6) is provided with an air inlet, a positive pressure port and a negative pressure port. The negative pressure port is connected to the crusher (5). The positive pressure port is connected to the cyclone separator (7). The cyclone separator (7) is used to separate medicine powder from air.

2. The drug powder recovery device for a capsule filling machine according to claim 1, characterized in that: The medicine powder recovery box (3), the first recovery pipe (4), the crusher (5), the pneumatic conveyor (6) and the cyclone separator (7) are all detachably connected to each other via a joint (8).

3. The drug powder recovery device for a capsule filling machine according to claim 1, characterized in that: The crusher (5), pneumatic conveyor (6) and cyclone separator (7) are arranged in parallel with the powder recovery box (3), and the first recovery pipe (4) is provided with a rounded corner (41) connecting the powder recovery box (3) and the crusher (5).

4. The drug powder recovery device for a capsule filling machine according to claim 1, characterized in that: The pneumatic conveyor (6) is detachably connected to the cyclone separator (7) via a second recovery pipe (9).

5. The drug powder recovery device for a capsule filling machine according to claim 4, characterized in that: The second recovery pipe (9) is a hose.

6. The drug powder recovery device for a capsule filling machine according to claim 1, characterized in that: The cyclone separator (7) is detachably connected to the feed hopper (1) via a third recovery pipe (10).

7. The drug powder recovery device for a capsule filling machine according to any one of claims 1 to 6, characterized in that: The cyclone separator (7) comprises a cyclone cylinder (71) and an end cover (72); the bottom of the cyclone cylinder (71) is connected to the feed hopper (1), and the top is detachably connected to the end cover (72).

8. The drug powder recovery device for a capsule filling machine according to claim 7, characterized in that: The end cover (72) is provided with an air inlet and an air outlet (73), and the air outlet (73) is equipped with a filter screen, and the filter screen is used to prevent the medicine powder from being discharged with the wind.

9. The drug powder recovery device for a capsule filling machine according to any one of claims 1 to 6, characterized in that: The first recovery tube (4) is a double-mirror tube.

10. The drug powder recovery device for a capsule filling machine according to any one of claims 1 to 6, characterized in that: The bottom of the medicine powder recovery box (3) is provided with a guide slope for guiding the medicine powder to be transported to the first recovery pipe (4).

Images