Pill coating and drying all-in-one machine

Abstract

The utility model discloses a pill coating and drying all-in-one machine, which relates to the technical field of pharmaceutical equipment, and comprises a machine body and a coating pan arranged on the machine body, a material distributing piece is arranged in the coating pan, a plurality of coating through holes for one pill to pass through are vertically arranged on the material distributing piece, and the coating through holes are communicated with the machine body. A coating spray head and an air outlet are arranged on the inner wall of the coating through hole in the circumferential direction, and the coating spray head is located on the upper side of the air outlet; the two sides of the coating pan are each provided with an end cover, at least one end cover is provided with a medicine inlet, and the medicine inlets are located in the upper side of the material distributing piece. The pills are spherical, and only one pill can enter one coating through hole at a time, so that the coating nozzles arranged in the circumferential direction can uniformly spray sugar coatings on the pills passing through the coating nozzles; and the air outlet can be used for drying sugar coats one by one, so that pills falling on the bottom wall of the coating pan are effectively prevented from being adhered.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical equipment, and particularly relates to an integrated pill coating and drying machine. Background Art

[0002] A coating machine is an efficient, energy-saving, safe and clean mechatronic device that can perform film coating on tablets, pills, etc. The coating machine is applicable to industries such as pharmaceuticals, chemicals, and food. In the pharmaceutical field, coating a pill with a layer of sugar coating can change the taste of the pill and cover the bitter taste of the pill.

[0003] In the prior art, a coating machine disclosed in a patent with the application number CN202223380837.2 can dry the pills at the bottom and on the surface of the coating pan simultaneously, improving the drying effect, and the spray pipe can spray sugar coating on the pills in the coating pan.

[0004] However, the spray pipe can only spray sugar coating on the upper-layer pills. Although the coating pan is constantly tumbling, it is still very difficult to evenly coat the surface of each pill with sugar coating. When there are a large number of pills in the coating pan, the pills are extremely likely to stack up, and the pills in the middle layer are difficult to be dried, and the semi-dry sugar coating is very easy to stick the pills together. Content of the Utility Model

[0005] In order to solve at least one technical problem mentioned in the background art, the purpose of the utility model is to provide an integrated pill coating and drying machine, which can evenly coat the surface of each pill with sugar coating, and can dry the sugar coating one by one, effectively preventing the pills from sticking together.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An integrated pill coating and drying machine includes a machine body and a coating pan arranged on the machine body. A material distributing member is arranged in the coating pan. A plurality of coating through holes for passing one pill are vertically formed in the material distributing member. A coating spray head and an air outlet are circumferentially arranged on the inner wall of the coating through hole. The coating spray head is located above the air outlet. One end cover is arranged on each of the two sides of the coating pan. At least one end cover is provided with a medicine inlet, and the medicine inlet is located above the material distributing member.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows: The pills enter the coating pan through the medicine inlet. Due to gravity, the pills fall into the coating through-holes. The pills entering the coating through-holes first pass through the circumferentially arranged coating nozzles, which spray sugar coating on the pills. Then the pills pass through the air outlet, and the air outlet dries the sugar coating on the outer side of the pills. Since the pills are spherical and only one pill can enter one coating through-hole at a time, the circumferentially arranged coating nozzles can uniformly spray sugar coating on the pills passing through the coating nozzles; and the air outlet can dry the sugar coating one by one, effectively preventing the pills falling on the bottom wall of the coating pan from sticking together.

[0009] Preferably, the coating pan is rotatably connected to the machine body, the material distributing member is fixedly connected to the end cover, and the end cover is fixedly connected to the machine body; a plurality of baffles are circumferentially arranged on the inner wall of the coating pan, and the minimum distance from the baffle to the material distributing member is less than the diameter of the pill.

[0010] Preferably, a transmission assembly is provided between the machine body and the coating pan. The transmission assembly includes a transmission motor fixed on the machine body, an external gear fixedly connected to the output end of the transmission motor, and an internal gear fixed on the coating pan. The external gear is meshed with the internal gear for transmission.

[0011] Preferably, the top surface of the material distributing member is provided with an inwardly recessed pit, and the coating through-hole is opened on the bottom wall of the pit.

[0012] Preferably, a material rectifying piece is rotatably connected to the bottom wall of the pit. A plurality of vertically through material rectifying through-holes are opened on the material rectifying piece, and each coating through-hole has at least one corresponding material rectifying through-hole.

[0013] Preferably, a material rectifying motor is arranged inside the material distributing member, and the material rectifying piece is fixedly arranged on the output end of the material rectifying motor.

[0014] Preferably, a coating feed pipe is arranged on the machine body. A coating conduit is provided between one end of the coating feed pipe and the coating nozzle, and the other end of the coating feed pipe is externally connected to a feed pump.

[0015] Preferably, an air inlet pipe is arranged on the machine body. A drying conduit is provided between one end of the air inlet pipe and the air outlet, and the other end of the air inlet pipe is externally connected to a pneumatic pump. A heating element is arranged on the drying conduit.

[0016] Preferably, a control panel is arranged on the machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the internal structural schematic diagram of the present utility model;

[0019] Figure 3 Schematic diagram of the internal structure of the coating pan of the present utility model;

[0020] Figure 4 is Figure 3 explosion diagram of;

[0021] Figure 5 is Figure 2 front elevation sectional view of;

[0022] In the figure:

[0023] 1, body; 11, control panel; 2, coating pan; 21, end cover; 210, medicine inlet; 22, material distributing member; 220, coating through hole; 23, material rectifying plate; 230, material rectifying through hole; 24, baffle; 3, coating feed pipe; 31, coating conduit; 32, coating nozzle; 4, air inlet pipe; 41, drying conduit; 42, air outlet; 5, transmission assembly; 51, external gear; 52, internal gear; 6, material rectifying motor. Specific embodiments

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 and Figure 5 , this embodiment provides a pill coating and drying integrated machine, including a body 1, a control panel 11 provided on the body 1, a coating pan 2 provided on the body 1, a material distributing member 22 provided in the coating pan 2, a plurality of coating through holes 220 for passing a single pill vertically opened on the material distributing member 22 (the diameter of the coating through hole 220 is slightly larger than the diameter of the pill, and only one pill can pass through each coating through hole 220 at the same height), a coating nozzle 32 and an air outlet 42 are circumferentially provided on the inner wall of the coating through hole 220, and the coating nozzle 32 is located above the air outlet 42; an end cover 21 is respectively provided on both sides of the coating pan 2, and a medicine inlet 210 is provided on at least one end cover 21, and the medicine inlet 210 is located above the material distributing member 22. The pill enters from the medicine inlet 210 and falls on the material distributing member 22. Under the action of gravity, the pill sequentially enters the coating through hole 220, and the circumferentially arranged coating nozzle 32 sprays sugar coating on the pill circumferentially. After spraying, the pill passes through the air outlet 42, and the air blown out by the air outlet 42 dries the pill sequentially, so that the pills falling on the bottom wall of the coating pan 2 are all dried, effectively preventing the pills from sticking.

[0026] Please refer toFigure 1 , Figure 2 and Figure 4 , in order to achieve the above-mentioned coating, in this embodiment, a coating feed pipe 3 is provided on the machine body 1. A coating conduit 31 is provided between one end of the coating feed pipe 3 and the coating nozzle 32. The other end of the coating feed pipe 3 is externally connected to a feed pump; the feed pump sucks the liquid sugar coating into the coating and sucks it into the feed pump. Under the action of pressure, the liquid sugar coating sequentially passes through the feed pipe 3 and the coating conduit 31, and finally sprays out from the coating nozzle 32. The sugar coating is sprayed on the outer surface of the pill to complete the coating work. It should be noted that, in order to prevent waste of the sugar coating and to prevent excessive sugar coating from remaining in the coating through-hole 220 and causing blockage of the coating through-hole 220, a valve is provided on the coating nozzle 32. A photoelectric sensor is provided at a position above the coating nozzle 32 where the coating through-hole 220 is located. The photoelectric sensor is electrically connected to a PLC, and the PLC is electrically connected to the valve. When a pill passes through the photoelectric sensor, the PLC controls the valve on the coating nozzle 32 in the coating through-hole 220 where the photoelectric sensor is located to open and start for about 1 second to achieve sugar coating spraying on the passing pill. When no pill passes through, the valve is normally closed.

[0027] Please refer to Figure 1 , Figure 2 and Figure 4 , in order to achieve the above-mentioned drying, in this embodiment, an air inlet pipe 4 is provided on the machine body 1. A drying conduit 41 is provided between one end of the air inlet pipe 4 and the air outlet 42. The other end of the air inlet pipe 4 is externally connected to a pneumatic pump, and a heating element is provided on the drying conduit 41. The pneumatic pump sucks the external gas into the air inlet pipe 4. After the gas enters the drying conduit 41, it is heated at a low temperature by the heating element, so that the temperature of the gas rises slightly. The relatively hot gas is blown onto the pill with the sprayed sugar coating through the air outlet 42 to achieve drying of the sugar coating. It should be noted that after working for a period of time, when there is no pill in the coating pan 2, the cleaning button (not shown in the figure) on the control panel 11 is turned on, and the heating element generates high temperature to heat and melt the sugar coating remaining in the coating through-hole 220 to achieve automatic cleaning inside the coating through-hole 220.

[0028] Please refer to Figure 1 and Figure 2, in this embodiment, the coating pan 2 is rotatably connected to the machine body 1, the material distributing member 22 is fixedly connected to the end cover 21, and the end cover 21 is fixedly connected to the machine body 1; a plurality of baffles 24 are circumferentially arranged on the inner wall of the coating pan 2, and the minimum distance from the baffle 24 to the material distributing member 22 is smaller than the diameter of the pill. By the rotation of the coating machine 2, the baffle 24 is driven to rotate, so that the pills falling on the bottom wall of the coating pan 2 are brought back to the upper side of the material distributing member 22 for secondary coating or drying. It is also possible to set a combination of multi-pipeline coating feed pipes 3, coating conduits 31, and coating nozzles 32 to achieve the effect of sequentially spraying different sugar coatings. It should be noted that the coating pan 2 may not rotate during the coating process and only rotate after all the pills are coated, so that the problem of different coating layers for a batch of pills will not occur.

[0029] Wherein, a transmission assembly 5 is provided between the machine body 1 and the coating pan 2. The transmission assembly 5 includes a transmission motor fixed on the machine body 1, an external gear 51 fixedly connected to the output end of the transmission motor, and an internal gear 52 fixedly arranged on the coating pan 2. The external gear 51 is meshed with the internal gear 52 for transmission. By driving the external gear 51 to rotate by the transmission motor, the coating pan 2 is driven to rotate under the meshing transmission of the external gear 51 and the internal gear 52. It should be noted that the end cover 21 and the material distributing member 22 do not rotate with the rotation of the coating machine 2, and only the baffle 24 rotates with the rotation of the coating machine 2.

[0030] Please refer to Figure 4 , in this embodiment, the top surface of the material distributing member 22 is provided with a recessed pit, and the coating through hole 220 is opened on the bottom wall of the pit. The provision of the pit facilitates the introduction of the pills into the coating through hole 220.

[0031] Please refer to Figure 3 , Figure 4 and Figure 5 , in this embodiment, a leveling piece 23 is rotatably connected to the bottom wall of the pit. A plurality of vertically penetrating leveling through holes 230 are opened on the leveling piece 23. Each coating through hole 220 has at least one corresponding leveling through hole 230. A leveling motor 6 is arranged inside the material distributing member 22, and the leveling piece 23 is fixedly arranged on the output end of the leveling motor 6. By driving the leveling piece 23 to rotate by the leveling motor 6, when the leveling through hole 230 is separated from the coating through hole 220, at most one pill will fall into the leveling through hole 230 until the leveling through hole 230 is aligned with the coating through hole 220, and then the pill will fall into the leveling through hole 230. By setting a suitable rotation speed, at most one pill can pass through each time they are aligned, so as to realize the intermittent processing of the pills and prevent the problems of incomplete spraying or sticking of the pills caused by more than two pills being sprayed or dried simultaneously. Drying can also be started separately without spraying sugar coating and for secondary drying, effectively improving the drying effect.

[0032] In this embodiment, after film coating is completed, the spraying and drying are turned off, and the whole tablet 23 is rotated to a state where none of the whole tablet through holes 230 is aligned with the film coating through hole 220. Then the driving motor is turned on to rotate the film coating pan 2 until all the pills fall onto the whole tablet 23, and then the film-coated pills are taken out through the medicine inlet 210.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced by the present utility model.

Claims

1. A pill coating and drying machine, comprising a machine body (1) and a coating pan (2) arranged on the machine body (1), characterized in that: A material distributor (22) is provided inside the coating pan (2), and a plurality of coating through holes (220) for passing a pill are vertically opened on the material distributor (22), and a coating nozzle (32) and an air outlet (42) are circumferentially provided on the inner wall of the coating through hole (220), and the coating nozzle (32) is located on the upper side of the air outlet (42); an end cover (21) is provided on each side of the coating pan (2), and at least one of the end covers (21) is provided with a drug inlet (210), and the drug inlet (210) is located on the upper side of the material distributor (22).

2. The pill coating and drying machine according to claim 1, characterized in that: The coating pan (2) is rotatably connected to the machine body (1), the material distributor (22) is fixedly connected to the end cover (21), and the end cover (21) is fixedly connected to the machine body (1); a plurality of baffles (24) are circumferentially provided on the inner wall of the coating pan (2), and the minimum distance between the baffles (24) and the material distributor (22) is less than the diameter of the pills.

3. The pill coating and drying machine according to claim 2, characterized in that: A transmission assembly (5) is provided between the machine body (1) and the coating pot (2), the transmission assembly (5) comprising a transmission motor fixedly mounted on the machine body (1), an external gear (51) fixedly connected to the output end of the transmission motor, and an internal gear (52) fixedly mounted on the coating pot (2), the external gear (51) and the internal gear (52) being meshed for transmission.

4. The pill coating and drying machine according to claim 1, characterized in that: The top surface of the material dividing member (22) is provided with an inwardly recessed pit, and the coating through hole (220) is opened on the bottom wall of the pit.

5. The pill coating and drying machine according to claim 4, characterized in that: A whole material sheet (23) is rotatably connected to the bottom wall of the pit, and a plurality of whole material through holes (230) are provided on the whole material sheet (23) which pass through the whole material sheet (23) vertically, and each coating through hole (220) has at least one whole material through hole (230) corresponding thereto.

6. The pill coating and drying machine according to claim 5, characterized in that: The material dividing piece (22) is provided with a material-forming motor (6), and the material-forming sheet (23) is fixedly arranged on the output end of the material-forming motor (6).

7. The pill coating and drying machine according to claim 1, characterized in that: The machine body (1) is provided with a coating feed pipe (3), a coating conduit (31) is provided between one end of the coating feed pipe (3) and a coating nozzle (32), and the other end of the coating feed pipe (3) is externally connected to a feed pump.

8. The pill coating and drying machine according to claim 1, characterized in that: The machine body (1) is provided with an air inlet pipe (4), a drying duct (41) is provided between one end of the air inlet pipe (4) and an air outlet (42), the other end of the air inlet pipe (4) is externally connected to an air pressure pump, and a heating element is provided on the drying duct (41).

9. The pill coating and drying machine according to claim 1, characterized in that: The machine body (1) is provided with a control panel (11).

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