Miniature tablet coating drying device capable of preventing caking

Abstract

The utility model discloses a miniature tablet coating drying device capable of preventing caking, which relates to the technical field of drying equipment and comprises an outer shell, a screen drum is transversely arranged between the left side and the right side in the outer shell, and a pulse component capable of preventing tablets from caking is arranged on the left side of the bottom end in the outer shell. According to the micro tablet coating drying device capable of preventing caking, the air bag, the air inlet electromagnetic valve, the air pump, the pulse valve, the blowing pipe and the pulse nozzle are arranged, when the micro tablet coating drying device is used, the pulse valve is continuously opened and closed during drying, compressed air in the air bag flows into the pulse nozzle along the blowing pipe, and the pulse nozzle blows pulse airflow upwards; when the air bag needs to be supplemented, the air inlet electromagnetic valve is opened, the air pump continuously pumps air into the air bag, the function of preventing caking through bottom pulse injection is achieved, and the problem that the device does not have the function of preventing caking through bottom pulse injection is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to a micro-tablet coating drying device capable of preventing agglomeration. Background Art

[0002] Coating is an outer protective layer formed by spraying a thin, uniform and continuous film on the surface of tablets or pills. It can make the tablets easy to identify and swallow, control the drug release curve of the tablets, etc. The coating needs to be dried synchronously while spraying to avoid adhesion between the coatings.

[0003] The common equipment currently available on the market for micro-tablet coating and drying is mostly similar in overall structure. The tablets are conveyed into the sieve drum, and while the coating syrup is sprayed, the sieve drum rotates and flips, and hot air blows from the bottom to accelerate the coating drying. However, there are some functional deficiencies in actual use, and there is room for improvement. For example, the coating syrup itself has a certain viscosity, and small clumps are easily formed during the spraying process. When the sieve drum flips, the rolling amplitude of the tablets is not large, and it is not easy to separate the clumps. It does not have the function of bottom pulse spraying to prevent agglomeration.

[0004] Now, a novel anti-caking micro-tablet coating and drying device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a micro-tablet coating and drying device for preventing agglomeration, so as to solve the problem in the above background technology that the device does not have the function of preventing agglomeration by bottom pulse spraying.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a micro-tablet coating and drying device for preventing agglomeration, comprising an outer shell, two sets of carrying wheels being movably connected to the left and right sides of the inner part of the outer shell, a feeding bin being provided at the top of the left side of the outer shell, and motor-driven wheel sets being installed at the left and right sides of the top end of the inner part of the outer shell, a sieve cylinder being horizontally arranged between the left and right sides of the inner part of the outer shell, a coating syrup conveying pipe being fixedly connected to the right side of the top of the outer shell, a plurality of groups of coating syrup atomizing nozzles being obliquely fixedly connected to the bottom end of the coating syrup conveying pipe, an electric heating bellows being fixedly connected to the right side of the inner bottom end of the outer shell, a blower being installed on the left side of the electric heating bellows, a hot air pipe being fixedly connected to the right side of the electric heating bellows, a plurality of groups of hot air nozzles being obliquely fixedly connected to the top end of the hot air pipe, and a pulse component for preventing tablets from agglomerating being provided on the left side of the inner bottom end of the outer shell.

[0007] The pulse assembly includes an air bag, which is fixedly connected to the left side of the bottom end of the outer shell, an air intake solenoid valve is installed on the right side of the air bag, an air pump is provided at the top of the air bag, a blow pipe is provided behind the hot air pipe, a pulse valve is installed on the left side of the air bag, and multiple groups of pulse nozzles are obliquely installed on the top of the blow pipe.

[0008] Preferably, the air intake solenoid valve and the air pump are connected by a steel pipe, and the interiors of the air bag, the air intake solenoid valve and the air pump are interconnected.

[0009] Preferably, the pulse valve and the blowing pipe are connected, and the interiors of the air bag, the pulse valve and the blowing pipe are interconnected.

[0010] Preferably, the top end of the pulse nozzle is lower than the bottom end of the screen drum, and the pulse nozzles are arranged at equal intervals.

[0011] Preferably, an arc-shaped plate is provided below the screen drum, a suspension plate is welded to the rear end of the arc-shaped plate, a concave support is welded to the rear end of the inner part of the outer shell, a buzzer is installed at the front end of the concave support, multiple groups of pressure sensors are installed at the bottom end of the concave support, and the top of the pressure sensor is fixedly connected to a support plate.

[0012] Preferably, the top end of the support plate and the bottom end of the suspension plate are in contact with each other, the concave support and the support plate are not connected, and the buzzer and the pressure sensor are electrically connected.

[0013] Preferably, a semi-annular sealing plate is provided on the right side of the outer shell, a discharge guide plate is welded to the right side of the semi-annular sealing plate, and two groups of electric cylinders are installed on the bottom of the right side of the outer shell.

[0014] Preferably, the inner diameter of the discharge guide plate is the same as the inner diameter of the screen drum, and the top end of the electric cylinder is connected to the discharge guide plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the micro-tablet coating and drying device for preventing agglomeration not only realizes the function of preventing agglomeration by bottom pulse spraying, but also realizes the function of internal cleaning feedback and the function of facilitating the control of discharging;

[0016] (1) The apparatus is provided with an air bag, an air inlet electromagnetic valve, an air pump, a pulse valve, a blowpipe and a pulse nozzle. When in use, the micro tablets are conveyed from the feed bin into the sieve drum, and the motor-driven wheel set and the supporting wheel cooperate to drive the sieve drum to rotate continuously, so that the tablets can be turned over in the sieve drum. At the same time, the external pump continuously conveys the coating syrup along the coating syrup conveying pipe, and sprays a fine sugar mist from the coating syrup atomizing nozzle. The sugar mist adheres to the surface of the tablet to form a coating, and the blower continuously pumps air into the electric heating bellows. The air passes through the electric heating bellows. After the electric heating wire inside the hot air box is heated, it is transported upward along the hot air pipe. The hot air nozzle blows out hot air from bottom to top to dry the coating on the surface of the tablet. During the drying process, the pulse valve opens and closes continuously, and the compressed air in the air bag flows into the pulse nozzle along the blowing pipe. The pulse nozzle sprays pulse air upward, and cooperates with the screen cylinder to quickly turn the tablets inside to prevent them from sticking together. When the air bag needs to be replenished, the air inlet solenoid valve opens, and the air pump continuously pumps air into the air bag, realizing the bottom pulse spraying to prevent agglomeration.

[0017] (2) By providing an arc plate, a hanging plate, a concave support, a buzzer, a support plate and a pressure sensor, when in use, during the process of spraying the coating, part of the syrup mist and tablet powder leaks out along the holes on the sieve drum, and the arc plate receives the leaked material. As the material on the surface of the arc plate continues to increase, the pressure of the hanging plate on the support plate in the concave support continues to increase, and the pressure sensor senses the pressure in real time. When the weight exceeds the preset threshold, the buzzer sounds to remind the staff to clean up in time, thereby realizing the function of internal cleaning feedback;

[0018] (3) By providing an electric cylinder, a semi-circular sealing plate and a discharge guide plate, when in use, the screen drum rolls clockwise. During the rolling process, the electric cylinder extends upward, and the semi-circular sealing plate moves up to block the edge of the screen drum to prevent the tablets from falling out. When discharging, the electric cylinder retracts, and the discharge guide plate and the edge of the screen drum are aligned, so that the tablets can fall out quickly, realizing the function of easy control of discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the side structure of the screen drum of the present invention;

[0021] Figure 3 For the utility model Figure 2 A in the middle is an enlarged structural diagram;

[0022] Figure 4 This is a side-view enlarged structural diagram of the semi-annular sealing plate of the present invention.

[0023] In the figure: 1. outer shell; 2. air bag; 3. air inlet solenoid valve; 4. air pump; 5. pulse valve; 6. blowing pipe; 7. pulse nozzle; 8. load-bearing wheel; 9. feed bin; 10. motor-driven wheel group; 11. sieve cylinder; 12. coating syrup conveying pipe; 13. coating syrup atomizing nozzle; 14. curved plate; 15. hanging plate; 16. concave support; 17. buzzer; 18. support plate; 19. pressure sensor; 20. electric cylinder; 21. semi-annular sealing plate; 22. discharge guide plate; 23. hot air pipe; 24. hot air nozzle; 25. electric hot air box; 26. blower. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-4 , a micro-tablet coating and drying device for preventing agglomeration, comprising an outer shell 1, two sets of carrying wheels 8 are movably connected to the left and right sides of the inner part of the outer shell 1, a feeding bin 9 is provided on the top of the left side of the outer shell 1, and motor-driven wheel groups 10 are respectively installed on the left and right sides of the top of the inner part of the outer shell 1, a sieve cylinder 11 is transversely arranged between the left and right sides of the inner part of the outer shell 1, a coating syrup conveying pipe 12 is fixedly connected to the right side of the top of the outer shell 1, and a plurality of groups of coating syrup atomizing nozzles 13 are obliquely fixedly connected to the bottom end of the coating syrup conveying pipe 12, an electric heating bellows 25 is fixedly connected to the right side of the bottom end of the inner part of the outer shell 1, a blower 26 is installed on the left side of the electric heating bellows 25, a hot air pipe 23 is fixedly connected to the right side of the electric heating bellows 25, and a plurality of groups of hot air nozzles 24 are obliquely fixedly connected to the top end of the hot air pipe 23, and a pulse component for preventing tablets from agglomerating is provided on the left side of the bottom end of the inner part of the outer shell 1;

[0026] See also Figure 1-4 A micro-tablet coating and drying device for preventing agglomeration also includes a pulse component, which includes an air bag 2, which is fixedly connected to the left side of the bottom end of the outer shell 1, an air inlet solenoid valve 3 is installed on the right side of the air bag 2, an air pump 4 is provided on the top of the air bag 2, a blowing pipe 6 is provided behind the hot air pipe 23, a pulse valve 5 is installed on the left side of the air bag 2, and a plurality of pulse nozzles 7 are obliquely installed on the top of the blowing pipe 6;

[0027] The air intake solenoid valve 3 and the air pump 4 are connected by a steel pipe. The air bag 2, the air intake solenoid valve 3, and the air pump 4 are connected internally. The pulse valve 5 and the blowing pipe 6 are connected. The air bag 2, the pulse valve 5, and the blowing pipe 6 are connected internally. The top of the pulse nozzle 7 is lower than the bottom of the screen cylinder 11. The pulse nozzles 7 are arranged at equal intervals. The pulse blowing can further reduce the probability of tablet adhesion.

[0028] Specifically, if Figure 1 and Figure 2 As shown, the pulse valve 5 is continuously opened and closed, and the compressed air in the air bag 2 flows into the pulse nozzle 7 along the blowing pipe 6. The pulse nozzle 7 sprays the pulse airflow upward, and cooperates with the screen cylinder 11 to quickly flip the tablets inside to prevent them from sticking together. When the air bag 2 needs to be replenished, the air inlet solenoid valve 3 is opened, and the air pump 4 continuously pumps air into the air bag 2.

[0029] Example 2: An arc-shaped plate 14 is provided below the sieve drum 11, a suspension plate 15 is welded to the rear end of the arc-shaped plate 14, a concave support 16 is welded to the rear end of the inner portion of the outer shell 1, a buzzer 17 is installed at the front end of the concave support 16, and multiple groups of pressure sensors 19 are installed at the bottom end of the inner portion of the concave support 16. The top of the pressure sensor 19 is fixedly connected to a support plate 18, the top of the support plate 18 and the bottom end of the suspension plate 15 are in contact, the concave support 16 and the support plate 18 are not connected, the buzzer 17 and the pressure sensor 19 are electrically connected, and can automatically remind when cleaning is needed;

[0030] Specifically, if Figure 1 and Figure 3 As shown, the arc plate 14 receives the leaked material. As the material on the surface of the arc plate 14 continues to increase, the pressure of the hanging plate 15 on the support plate 18 in the concave support 16 continues to increase. The pressure sensor 19 senses the pressure in real time. When the weight exceeds the preset threshold, the buzzer 17 sounds to remind the staff to clean up in time.

[0031] Example 3: A semi-annular sealing plate 21 is provided on the right side of the outer shell 1, and a discharge guide plate 22 is welded to the right side of the semi-annular sealing plate 21. Two sets of electric cylinders 20 are installed at the bottom of the right side of the outer shell 1. The inner diameter of the discharge guide plate 22 is the same as the inner diameter of the screen drum 11. The top of the electric cylinder 20 is connected to the discharge guide plate 22 to facilitate the control of tablet discharge;

[0032] Specifically, if Figure 1 and Figure 4 As shown, the electric cylinder 20 extends upward, and the semi-annular sealing plate 21 moves upward to block the edge of the screen drum 11 to prevent tablets from falling out. When discharging, the electric cylinder 20 retracts, and the discharge guide plate 22 is aligned with the edge of the screen drum 11, so that the tablets can fall out quickly.

[0033] Working principle: When the utility model is in use, first, the micro tablets are conveyed from the feed bin 9 into the sieve drum 11, and the motor-driven wheel set 10 and the carrying wheel 8 cooperate to drive the sieve drum 11 to rotate continuously, and the tablets can be turned over in the sieve drum 11. At the same time, the external pump continuously conveys the coating syrup along the coating syrup conveying pipe 12, and sprays a fine sugar mist from the coating syrup atomizing nozzle 13. The sugar mist adheres to the surface of the tablet to form a coating, and the blower 26 continuously pumps air into the electric heating bellows 25. The air passes through the electric heating bellows 25. After being heated by the heating wire inside the hot air box 25, it is transported upward along the hot air pipe 23. The hot air nozzle 24 blows hot air from bottom to top, drying the coating on the surface of the tablets. During the drying process, the pulse valve 5 is continuously opened and closed, and the compressed air in the air bag 2 flows along the blowing pipe 6 into the pulse nozzle 7. The pulse nozzle 7 sprays a pulsed airflow upward, cooperating with the screen drum 11 to quickly flip the tablets inside to prevent them from sticking together. When the air bag 2 needs to be replenished, the air inlet solenoid valve 3 is opened, and the air pump 4 continuously pumps air into the air bag 2. During the coating spraying process, some syrup mist and tablet powder leak out through the holes in the screen drum 11. The curved plate 14 receives the leaked material. As the material on the surface of the curved plate 14 continues to increase, the pressure of the hanging plate 15 on the support plate 18 in the concave support 16 continues to increase. The pressure sensor 19 senses the pressure in real time. When the weight exceeds the preset threshold, the buzzer 17 sounds, reminding the staff to clean it up in time. The sieve drum 11 rolls clockwise. During the rolling process, the electric cylinder 20 extends upward, and the semi-annular sealing plate 21 moves up to block the edge of the sieve drum 11 to prevent tablets from falling out. When discharging, the electric cylinder 20 retracts, and the discharge guide plate 22 is aligned with the edge of the sieve drum 11, so that the tablets can fall out quickly.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A micro-tablet coating and drying device for preventing agglomeration, comprising an outer shell (1), characterized in that: The left and right sides of the outer shell (1) are respectively movably connected to two groups of bearing wheels (8), the top of the left side of the outer shell (1) is provided with a feed bin (9), the left and right sides of the top of the inner shell (1) are respectively provided with motor drive wheel groups (10), a screen drum (11) is transversely provided between the left and right sides of the inner shell (1), and the right side of the top of the outer shell (1) is fixedly connected to a coating syrup delivery pipe (12), the bottom end of the coating syrup delivery pipe (12) is provided with a coating syrup delivery pipe (12). Multiple groups of coating syrup atomizing nozzles (13) are fixedly connected in an oblique manner, an electric heating blower (25) is fixedly connected to the right side of the bottom end of the outer shell (1), a blower (26) is installed on the left side of the electric heating blower (25), a hot air pipe (23) is fixedly connected to the right side of the electric heating blower (25), and multiple groups of hot air nozzles (24) are fixedly connected to the top of the hot air pipe (23) in an oblique manner, and a pulse component that can prevent tablets from agglomerating is provided on the left side of the bottom end of the inner shell (1); The pulse assembly comprises an air bag (2), the air bag (2) being fixedly connected to the left side of the bottom end inside the outer shell (1), an air intake solenoid valve (3) being installed on the right side of the air bag (2), an air pump (4) being provided at the top end of the air bag (2), a blow pipe (6) being provided behind the hot air pipe (23), a pulse valve (5) being installed on the left side of the air bag (2), and a plurality of pulse nozzles (7) being obliquely installed at the top end of the blow pipe (6).

2. The anti-caking micro-tablet coating and drying device according to claim 1, characterized in that: The air intake solenoid valve (3) and the air pump (4) are connected via a steel pipe, and the interiors of the air bag (2), the air intake solenoid valve (3) and the air pump (4) are interconnected.

3. The anti-caking micro-tablet coating and drying device according to claim 1, characterized in that: The pulse valve (5) and the blowing pipe (6) are connected, and the interiors of the air bag (2), the pulse valve (5) and the blowing pipe (6) are interconnected.

4. The anti-caking micro-tablet coating and drying device according to claim 1, characterized in that: The top end of the pulse nozzle (7) is lower than the bottom end of the screen drum (11), and the pulse nozzles (7) are arranged at equal intervals.

5. The anti-caking micro-tablet coating and drying device according to claim 1, characterized in that: An arc-shaped plate (14) is provided below the screen drum (11), a suspension plate (15) is welded to the rear end of the arc-shaped plate (14), a concave support (16) is welded to the rear end of the interior of the outer shell (1), a buzzer (17) is installed at the front end of the concave support (16), and a plurality of pressure sensors (19) are installed at the bottom end of the interior of the concave support (16), and a support plate (18) is fixedly connected to the top end of the pressure sensor (19).

6. The anti-caking micro-tablet coating and drying device according to claim 5, characterized in that: The top end of the support plate (18) is fitted with the bottom end of the suspension plate (15); the concave support (16) and the support plate (18) are not connected; and the buzzer (17) and the pressure sensor (19) are electrically connected.

7. The anti-caking micro-tablet coating and drying device according to claim 1, characterized in that: A semi-annular sealing plate (21) is provided on the right side of the outer shell (1), a discharge guide plate (22) is welded to the right side of the semi-annular sealing plate (21), and two groups of electric cylinders (20) are installed on the bottom of the right side of the outer shell (1).

8. The anti-caking micro-tablet coating and drying device according to claim 7, characterized in that: The inner diameter of the discharge guide plate (22) is the same as the inner diameter of the screen drum (11), and the top end of the electric cylinder (20) is connected to the discharge guide plate (22).

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