Tablet coating machine

Abstract

The utility model relates to the technical field of pharmacy and food industry, and discloses a tablet coating machine which comprises a machine box, an inner cavity of the machine box is an installation cavity, an air inlet pipe and an exhaust pipe are fixedly installed on the upper side of the machine box respectively, a panel is fixedly installed on the front face of the machine box and covers the installation cavity, and an observation window door is installed on the front face of the panel in a hinged mode. A coating roller is rotatably mounted in the mounting cavity of the case, a first motor is fixedly mounted on the inner rear wall of the case and drives the coating roller to rotate, a feeding port is formed in the front side of the coating roller, and a slurry spraying pipe is fixedly mounted on the front side of the panel. According to the coating machine, the rotating sleeve capable of being rotationally opened and closed is arranged between the feeding opening of the coating roller and the observation window door, so that medicine materials can be fed from the feeding opening and then discharged from the discharging opening in the rotating sleeve, the coating stirring, drying and discharging processes are all carried out in the machine box, the materials are more convenient to load and unload, and the working efficiency is improved. And the working environment can be effectively prevented from being polluted, and the more practical effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical and food industry, in particular to a tablet coating machine. Background Art

[0002] The pharmaceutical coating machine is an organic film coating, water-soluble film coating, slow-release and controlled-release coating equipment for tablets, pills, candies, etc. For example, the production process of selenium vitamin E tablets must use a coating machine for coating processing. The prior art announcement number is CN213759497U, which discloses a tablet coating machine. By setting this equipment, the moisture of the syrup wrapped on the tablet can be evaporated, thereby improving the effect of the syrup wrapped on the tablet and improving its production quality; it includes a box, a control panel, a partition, a first motor, a reducer, a drum, A rotating rod, a stirring rod, a hot air blower, an air duct, four sets of tripods and four sets of casters, an operating chamber is arranged inside the box, a control panel is installed at the front end of the box, a partition is installed on the inner wall of the operating chamber, four sets of tripods are rotatably installed at the left front side, right front side, left rear side and right rear side of the bottom end of the box, four sets of casters are rotatably installed on the four sets of tripods, a liquid supply device is arranged on the lower side of the operating chamber, and an output end of the liquid supply device extends into the rotating drum through an opening at the left end of the rotating drum, and the control panel is electrically connected to the first motor, the reducer, the transmission device, the liquid supply device and the hot air blower.

[0003] Existing coating machines, such as the above-mentioned equipment, are mostly open structures, which are convenient for feeding and discharging, but the sprayed coating medium is easy to overflow and pollute the working environment. If a closed structure is simply adopted, the coating machine will not be convenient for discharging, which will affect its use. Based on this, the existing coating machines have deficiencies in loading and unloading materials and preventing pollution, which need to be further improved. Utility Model Content

[0004] The purpose of the utility model is to provide a tablet coating machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tablet coating machine, comprising a chassis, the inner cavity of the chassis is an installation cavity, an air inlet duct and an exhaust duct are fixedly installed on the upper side of the chassis, a panel is fixedly installed on the front of the chassis, the panel covers the installation cavity, an observation window door is hingedly installed on the front of the panel, a coating drum is rotatably installed in the installation cavity of the chassis, a first motor is fixedly installed on the rear wall of the chassis, the first motor drives the coating drum to rotate, the front side of the coating drum is a feeding port, a spraying pipe is fixedly installed on the front of the panel, the spraying pipe extends from the feeding port into the coating drum, and a plurality of spray guns are fixedly installed on the surface of the spraying pipe.

[0006] A rotating sleeve is rotatably installed inside the chassis, and the inner wall of the rotating sleeve is a conical structure. The feeding port is connected with the entrance of the observation window door through the rotating sleeve. A second motor is fixedly installed in the chassis, and the second motor drives the rotating sleeve to rotate. A discharge port is opened on the surface of the rotating sleeve, and a material holding box is placed on the lower side of the installation cavity of the chassis, and the material holding box is placed on the lower side of the discharge port, ensuring that the coating mixing, drying and unloading processes are all carried out in the chassis, which can effectively prevent pollution of the working environment and will not affect the loading and unloading of materials.

[0007] In some embodiments, a guide air hood is fixedly installed in the installation cavity of the chassis, and the air inlet duct and the exhaust duct are both connected to the guide air hood. The guide air hood is wrapped around the coating drum to achieve air flow recycling for heating and drying.

[0008] In some embodiments, a plurality of mesh holes are provided on the surface of the coating drum, and a plurality of spiral blades are fixedly installed inside the coating drum. The plurality of spiral blades are arranged in a circular array on the inner wall of the coating drum, so that the coating drum can be rolled to better turn over and discharge the material inside the coating drum.

[0009] In some embodiments, a peristaltic pump is fixedly installed inside the chassis, the outlet end of the peristaltic pump is connected to the spray pipe, and an adjusting valve is provided on the surface of the spray pipe on the front side of the panel to facilitate manual control of the flow of the spray pipe on the front side of the equipment.

[0010] In some embodiments, a door is hingedly installed on the lower side of the front of the chassis, and a pneumatic telescopic rod is rotatably installed inside the chassis. The telescopic end of the pneumatic telescopic rod is rotatably connected to the inner wall of the door. After the door is flipped open, the material box can be placed into the chassis from the entrance of the door, making it convenient to take and place the material box.

[0011] In some embodiments, a semicircular gear ring is fixedly installed on the surface of the rotating sleeve, a gear is fixedly installed on the rotating end of the second motor, the gear and the semicircular gear ring are meshed and driven to drive the rotating sleeve to rotate, and a guide channel is fixedly installed inside the chassis, the lower opening of the guide channel is aligned with the upper opening of the material box, and when the rotating sleeve is rotated to a certain angle, the discharge port can be aligned with the upper opening of the guide channel.

[0012] In some embodiments, a plurality of rubber feet are fixedly mounted on the lower surface of the chassis. Beneficial Effects

[0013] The utility model provides a tablet coating machine, which has the following beneficial effects:

[0014] 1. The tablet coating machine is provided with a coating drum in the machine case, and the spray pipe is extended from the feeding port on the front side of the coating drum to the inside of the coating drum. A rotating sleeve that can be rotatably opened and closed is provided between the feeding port and the observation window door, so that the pharmaceutical materials can be added from the feeding port and then discharged from the discharge port on the rotating sleeve, ensuring that the coating mixing, drying and unloading processes are all carried out in the machine case, making loading and unloading of materials more convenient, and being able to effectively prevent pollution of the working environment, achieving a more practical effect.

[0015] 2. The tablet coating machine is provided with a guide hood on the outside of the coating drum. The external hot air blower injects hot air from the air inlet pipe into the guide hood, and then discharges the hot air from the exhaust pipe and flows back to the hot air blower, so as to provide a circulating hot air flow. Compared with the open coating pot, this closed heating environment improves the heating speed of the coating material and prevents the spray coating medium from overflowing with the drying air flow, which is more efficient, energy-saving, safe and clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front section structure of the chassis;

[0018] Figure 3 It is a schematic diagram of the side section structure of the chassis;

[0019] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0020] Figure 5 It is a schematic diagram of the rear view structure of the rotating sleeve.

[0021] In the figure: 1 chassis, 2 air inlet duct, 3 exhaust duct, 4 panel, 5 observation window door, 6 coating drum, 7 feeding port, 8 spraying pipe, 9 spray gun, 10 rotating sleeve, 11 first motor, 12 second motor, 13 discharge port, 14 material box, 15 guide air hood, 16 spiral blade, 17 peristaltic pump, 18 box door, 19 pneumatic telescopic rod, 20 semicircular gear ring, 21 guide channel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5The utility model provides a technical solution: a tablet coating machine, comprising a chassis 1, a plurality of rubber feet are fixedly installed on the lower surface of the chassis 1, the inner cavity of the chassis 1 is a mounting cavity, an air inlet duct 2 and an air exhaust duct 3 are fixedly installed on the upper side of the chassis 1, a panel 4 is fixedly installed on the front of the chassis 1, the panel 4 covers the mounting cavity, an observation window door 5 is hingedly installed on the front of the panel 4, a box door 18 is hingedly installed on the lower side of the front of the chassis 1, a pneumatic telescopic rod 19 is rotatably installed inside the chassis 1, the telescopic end of the pneumatic telescopic rod 19 is rotatably connected to the inner wall of the box door 18, the pneumatic telescopic rod 19 is extended, and after the box door 18 is pushed and flipped open, a material box 14 can be put into the chassis 1 from the entrance of the box door 18.

[0024] A coating drum 6 is rotatably installed in the installation cavity of the chassis 1, and a first motor 11 is fixedly installed on the rear wall of the chassis 1. The first motor 11 drives the coating drum 6 to rotate. The front side of the coating drum 6 is a feeding port 7. A spraying pipe 8 is fixedly installed on the front of the panel 4. The spraying pipe 8 extends from the feeding port 7 to the coating drum 6, and a plurality of spray guns 9 are fixedly installed on the surface of the spraying pipe 8.

[0025] A peristaltic pump 17 is fixedly installed inside the chassis 1, and the outlet end of the peristaltic pump 17 is connected to the spray pipe 8. An adjusting valve is provided on the surface of the spray pipe 8 located on the front side of the panel 4. The peristaltic pump 17 pumps the coating medium into the spray pipe 8, and then the coating medium is sprayed out from the spray gun 9.

[0026] A rotating sleeve 10 is rotatably installed inside the chassis 1, and the inner wall of the rotating sleeve 10 is a conical structure. The feeding port 7 is connected with the entrance of the observation window door 5 through the rotating sleeve 10. When the observation window door 5 is opened, the pharmaceutical material can be added into the coating drum 6 from the feeding port 7 to complete the feeding.

[0027] A second motor 12 is fixedly installed in the chassis 1, and the second motor 12 drives the rotating sleeve 10 to rotate. A discharge port 13 is opened on the surface of the rotating sleeve 10, and a material box 14 is placed on the lower side of the installation cavity of the chassis 1, and the material box 14 is placed on the lower side of the discharge port 13. Specifically, a semicircular gear ring 20 is fixedly installed on the surface of the rotating sleeve 10, and a gear is fixedly installed on the rotating end of the second motor 12. The gear meshes with the semicircular gear ring 20 for transmission, thereby driving the rotating sleeve 10 to rotate.

[0028] A guide channel 21 is fixedly installed inside the chassis 1, and the lower opening of the guide channel 21 is aligned with the upper opening of the material holding box 14. When the rotating sleeve 10 is rotated to a certain angle, the discharge port 13 can be aligned with the upper opening of the guide channel 21. By rotating the rotating sleeve 10, the discharge port 13 can move in a circle, away from the upper opening of the guide channel 21, and the guide channel 21 is cut off.

[0029] A plurality of mesh holes are provided on the surface of the coating drum 6, and a plurality of spiral blades 16 are fixedly installed inside the coating drum 6. The plurality of spiral blades 16 are arranged in a circular array on the inner wall of the coating drum 6. When unloading, the coating drum 6 rotates in the opposite direction, and the material is discharged from the feeding port 7 by the push of the spiral blades 16. Since the observation window door 5 remains closed during the discharge process, the material can pass through the discharge port 13 of the rotating sleeve 10, and then be discharged into the material box 14 through the guide channel 21.

[0030] Among them, a guide air hood 15 is fixedly installed in the installation cavity of the chassis 1, and the air inlet pipe 2 and the exhaust pipe 3 are both connected to the guide air hood 15. The guide air hood 15 is wrapped around the coating drum 6. By arranging the guide air hood 15 on the outside of the coating drum 6, the external hot air blower injects hot air into the guide air hood 15 from the air inlet pipe 2, and then discharges it from the exhaust pipe 3 and returns to the hot air blower, thereby realizing the circulation of hot air flow. Compared with an open coating pot, this closed heating environment improves the heating rate of the coating material and prevents the sprayed coating medium from overflowing with the drying air flow, which is more efficient, energy-saving, safe and clean.

[0031] The tablet coating machine is provided with a coating drum 6 in a machine case 1, a spray pipe 8 is extended from a feeding port 7 on the front side of the coating drum 6 into the coating drum 6, a rotating sleeve 10 which can be rotatably opened and closed is provided between the feeding port 7 and an observation window door 5, so that pharmaceutical materials can be added from the feeding port 7, and then discharged from a discharge port 13 on the rotating sleeve 10, ensuring that the coating stirring, drying and unloading processes are all carried out in the machine case 1, making it more convenient to load and unload materials, and being able to effectively prevent pollution of the working environment, thereby achieving a more practical effect.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tablet coating machine, comprising a housing (1), characterized in that: The inner cavity of the chassis (1) is an installation cavity, an air inlet duct (2) and an air exhaust duct (3) are fixedly installed on the upper side of the chassis (1), a panel (4) is fixedly installed on the front of the chassis (1), the panel (4) covers the installation cavity, an observation window door (5) is hingedly installed on the front of the panel (4), a coating drum (6) is rotatably installed in the installation cavity of the chassis (1), a first motor (11) is fixedly installed on the inner rear wall of the chassis (1), the first motor (11) drives the coating drum (6) to rotate, the front side of the coating drum (6) is a feeding port (7), a spraying pipe (8) is fixedly installed on the front of the panel (4), the spraying pipe (8) extends from the feeding port (7) into the coating drum (6), and a plurality of spray guns (9) are fixedly installed on the surface of the spraying pipe (8); A rotating sleeve (10) is rotatably mounted inside the chassis (1), the inner wall of the rotating sleeve (10) is of a conical structure, the feeding port (7) is connected to the entrance of the observation window door (5) through the rotating sleeve (10), a second motor (12) is fixedly mounted inside the chassis (1), the second motor (12) drives the rotating sleeve (10) to rotate, a discharge port (13) is provided on the surface of the rotating sleeve (10), a material holding box (14) is placed on the lower side of the installation cavity of the chassis (1), and the material holding box (14) is placed on the lower side of the discharge port (13).

2. A tablet coating machine according to claim 1, characterized in that: An air guide hood (15) is fixedly installed in the installation cavity of the chassis (1); the air inlet pipe (2) and the air exhaust pipe (3) are both connected to the air guide hood (15); and the air guide hood (15) is wrapped around the coating drum (6).

3. A tablet coating machine according to claim 2, characterized in that: The surface of the coating drum (6) is provided with a plurality of mesh holes, and a plurality of spiral blades (16) are fixedly installed inside the coating drum (6). The plurality of spiral blades (16) are arranged in a circular array on the inner wall of the coating drum (6).

4. A tablet coating machine according to claim 3, characterized in that: A peristaltic pump (17) is fixedly installed inside the chassis (1), and the outlet end of the peristaltic pump (17) is connected to the spraying pipe (8). A regulating valve is provided on the surface of the spraying pipe (8) located on the front side of the panel (4).

5. A tablet coating machine according to claim 4, characterized in that: A box door (18) is hingedly mounted on the lower side of the front of the box (1), and a pneumatic telescopic rod (19) is rotatably mounted inside the box (1). The telescopic end of the pneumatic telescopic rod (19) is rotatably connected to the inner wall of the box door (18). After the box door (18) is flipped open, the material box (14) can be placed into the box (1) through the entrance of the box door (18).

6. A tablet coating machine according to claim 5, characterized in that: A semicircular gear ring (20) is fixedly mounted on the surface of the rotating sleeve (10), and a gear is fixedly mounted on the rotating end of the second motor (12), and the gear meshes with the semicircular gear ring (20) to drive the rotating sleeve (10) to rotate.

7. A tablet coating machine according to any one of claims 1 to 6, characterized in that: A guide channel (21) is fixedly installed inside the chassis (1), and the lower opening of the guide channel (21) is aligned with the upper opening of the material holding box (14). When the rotating sleeve (10) is rotated to a certain angle, the discharge port (13) can be aligned with the upper opening of the guide channel (21).

8. A tablet coating machine according to claim 7, characterized in that: A plurality of rubber feet are fixedly mounted on the lower surface of the chassis (1).

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