Tabletting and coating device

Abstract

The utility model discloses a tabletting and coating device which comprises a main body, a motor, a liquid medicine spraying part, an air heater, a coating pan and a shaping air pipe, the upper end of the shaping air pipe is communicated with the end part of an air outlet pipe of the hot-air blower, and the lower end is communicated with a hot-air cover; the air outlet end face of the hot air cover is parallel to the opening end face of the coating pan; a plurality of through holes are formed in the wall of the coating pan; and a controller on the main body is electrically connected with the motor and the air heater respectively. The utility model has the advantages that the end part of the air outlet pipe of the air heater is communicated with the shaping air pipe and the hot air cover, and the end face of the air outlet of the hot air cover is parallel to the end face of the opening of the coating pan, so that hot air uniformly covers the inner cavity of the coating pan, and tablets are ensured to be uniformly contacted with the hot air in the coating process. A plurality of through holes are formed in the pot wall of the coating pot, so that impurities such as redundant water vapor are taken away in the hot air exhausting process, and the surface of a tablet is uniformly coated.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical equipment, in particular to a tablet coating device. Background Art

[0002] Traditional Chinese medicine tablets usually use a coating device to coat the outer surface of the tablet core with a sugar coating or film. The coating device uses an electrical automatic control method to spray the coating auxiliary materials onto the surface of the tablet with a high-atomization spray gun, so that the coating liquid is wrapped on the tablet core, and it is dried at the same time, so that a surface film coated on the tablet surface is quickly formed. However, during the use of the existing tablet coating device, since the air flow can only be discharged from the position where the hot air pipe extends after the hot air pipe enters the coating pot, this air outlet method causes uneven coating on the surface of the tablet, and when using a spray gun to spray the liquid medicine, when too much liquid medicine is sprayed, it is easy to cause the tablets to stick to each other, resulting in a decrease in the quality of the tablets. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a tablet coating device which can effectively and evenly coat the surface of a tablet.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A tablet coating device comprises a main body, a motor, a liquid medicine spraying part, a hot air blower, a coating pot, and a shaping air duct; the upper end of the shaping air duct is connected to the end of the hot air blower outlet duct, and the lower end is connected to a hot air hood; the outlet end face of the hot air hood is parallel to the opening end face of the coating pot; a plurality of through holes are opened on the wall of the coating pot; and the controller on the main body is electrically connected to the motor and the hot air blower respectively.

[0006] Furthermore, the through holes are divided into three groups and are centrally symmetrically distributed on the coating pot wall.

[0007] Furthermore, the hot air hood is shaped like a cone hood that is small at the top and large at the bottom.

[0008] Furthermore, the diameter of the air outlet end of the hot air hood is smaller than the diameter of the end surface of the coating pan opening.

[0009] Furthermore, it also includes a dust suction part; the dust suction part includes a dust suction hood, an exhaust fan, and an exhaust duct; the middle part of the dust suction hood is fixedly connected to the exhaust fan; the exhaust fan outlet is connected to the exhaust duct; the exhaust fan is electrically connected to the controller.

[0010] Furthermore, it also includes a collecting bucket, which is located directly below the coating pan.

[0011] Beneficial effects of the utility model:

[0012] By connecting the shaping air duct and the hot air hood at the end of the hot air blower outlet duct, and the outlet end face of the hot air hood is parallel to the opening end face of the coating pot, the hot air can effectively cover the internal cavity of the coating pot evenly, ensuring that the tablets are evenly exposed to the hot air during the coating process. By opening a number of through holes on the coating pot wall, the hot air can take away excess water vapor and other impurities during the discharge process, ensuring uniform coating on the surface of the tablets. The dust suction part can effectively absorb water vapor and other impurities inside the coating pot to ensure the cleanliness of the operating space. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of a tablet coating device;

[0014] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0015] Figure 3 Schematic diagram of the distribution of through holes on the coating pot wall.

[0016] In the figure, 1-main body, 2-hot air blower, 3-motor, 4-coating pot, 5-liquid spraying part, 6-forming air duct, 7-hot air hood, 8-controller, 9-dust suction part, 10-collecting barrel, 41-through hole, 91-dust suction hood, 92-exhaust fan, 93-exhaust duct. DETAILED DESCRIPTION

[0017] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0018] Reference Figure 1-3As shown, a tablet coating device includes a main body 1, a motor 3, a liquid medicine spraying part 5, a hot air blower 2, a coating pot 4, and a shaping air duct 6; the upper end of the shaping air duct 6 is connected to the end of the air outlet of the hot air blower 2, and the lower end is connected to a hot air hood 7; the outlet end face of the hot air hood 7 is parallel to the open end face of the coating pot 4; a plurality of through holes 41 are provided on the pot wall of the coating pot 4; the controller 8 on the main body 1 is electrically connected to the motor 3 and the hot air blower 2 respectively. The motor 3 can provide driving power for the coating pot 4. The liquid medicine spraying part 5 evenly sprays the coating liquid for the tablets in the coating pot 4 through the spray gun arranged thereon. The hot air blower 2 is arranged inside the main body 1, and can provide hot air when the tablets are coated. The coating pot 4 is the main place for tablet coating. The shaping air duct 6 can be moved, and when coating, it is moved to the opening of the coating pot 4 to effectively ensure that the hot air cover 7 set on the shaping air duct 6 is parallel to the opening end surface of the coating pot 4, and ensure that the hot air inside the coating pot 4 is evenly distributed. The controller 8 can control the operation of the motor 3 and the hot air blower 2. The controller 8, the motor 3, and the hot air blower 2 are all commercially available products and are prior art.

[0019] Specifically, in order to ensure that the coating liquid sprayed inside the coating pot 4 does not seep out too much and accumulate inside the cavity of the coating pot 4, the through holes 41 are divided into three groups and are symmetrically distributed on the wall of the coating pot 4. This method can also allow the hot air to take away excess impurities such as water vapor during the discharge process.

[0020] Specifically, in order to evenly distribute the hot air when it enters, the hot air hood 7 is shaped like a cone hood that is small at the top and large at the bottom.

[0021] Specifically, in order to ensure that the hot air completely enters the inner cavity of the coating pot 4 and facilitates the spray gun of the liquid spraying part 5 to spray the tablets with coating liquid, the diameter of the air outlet end of the hot air hood 7 is smaller than the end face diameter of the opening of the coating pot 4.

[0022] As another embodiment, a dust collecting unit 9 is further included; the dust collecting unit 9 includes a dust collecting hood 91, an exhaust fan 92, and an exhaust pipe 93; the middle of the dust collecting hood 91 is fixedly connected with the exhaust fan 92; the air outlet of the exhaust fan 92 is connected with the exhaust pipe 93; the exhaust fan 92 is electrically connected to the controller 8. The dust collecting unit 9 effectively absorbs impurities such as water vapor inside the coating pot 4 to ensure the cleanliness of the operating space.

[0023] As another embodiment, in order to facilitate cleaning and prevent excess coating liquid from being discharged to the ground through the through hole 41 to affect the working environment, a collecting barrel 10 is also included, and the collecting barrel 10 is located directly below the coating pot 4.

[0024] The working principle of this utility model:

[0025] When performing tablet coating, first put the tablet to be coated into the inner cavity of the coating pot 4, move the outlet end face of the hot air hood 7 to a state parallel to the open end face of the coating pot 4 by moving the shaping air duct 6, move the liquid medicine spraying part 5 to a predetermined position, spray the tablet with coating liquid through the spray gun of the liquid medicine spraying part 5, and then start the motor 3 and the hot air blower 2 through the controller 8. The motor 3 rotates to drive the tablet inside the coating pot 4 to move and evenly wrap the coating liquid. The hot air blower 2 and the through hole 41 form a reasonable air inlet and outlet form to ensure that the tablet can be evenly dried during coating without excess water vapor residue. The discharged water vapor effectively absorbs the water vapor and other impurities inside the coating pot 4 through the dust suction part 9 to ensure the cleanliness of the operating space. When the coating pot 4 is cleaned, the cleaning liquid can be discharged into the collection bucket through the through hole 41, and the excess coating liquid of the coating pot 4 during rotation can be discharged into the collection bucket 10 through the through hole 41 to prevent the coating liquid from being discharged to the ground and affecting the working environment.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A tablet coating device, comprising a main body (1), a motor (3), and a liquid medicine spraying part (5), characterized in that: It also includes a hot air blower (2), a coating pot (4), and a shaping air duct (6); the upper end of the shaping air duct (6) is connected to the end of the air outlet of the hot air blower (2), and the lower end is connected to a hot air hood (7); the air outlet end face of the hot air hood (7) is parallel to the opening end face of the coating pot (4); a plurality of through holes (41) are provided on the pot wall of the coating pot (4); and the controller (8) on the main body (1) is electrically connected to the motor (3) and the hot air blower (2) respectively.

2. A tablet coating device according to claim 1, characterized in that: The through holes (41) are divided into three groups and are centrally symmetrically distributed on the wall of the coating pan (4).

3. A tablet coating device according to claim 1, characterized in that: The hot air hood (7) is in the shape of a conical hood that is small at the top and large at the bottom.

4. A tablet coating device according to claim 1, characterized in that: The diameter of the air outlet end of the hot air hood (7) is smaller than the diameter of the end surface of the opening of the coating pan (4).

5. A tablet coating device according to claim 1, characterized in that: It also comprises a dust suction part (9); the dust suction part (9) comprises a dust suction hood (91), an exhaust fan (92), and an exhaust pipe (93); the middle part of the dust suction hood (91) is fixedly connected to the exhaust fan (92); the air outlet of the exhaust fan (92) is connected to the exhaust pipe (93); and the exhaust fan (92) is electrically connected to the controller (8).

6. A tablet coating device according to claim 1, characterized in that: It also comprises a collecting bucket (10), and the collecting bucket (10) is located directly below the coating pan (4).

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