A new efficient coating machine

Abstract

The present application relates to the technical field of coating machine, and specifically discloses a novel high-efficiency coating machine, which comprises a shell, and a coating mechanism for coating tablets is arranged in the shell. In the present application, the coating liquid enters into the flow guide shell through the connecting pipe, and the coating liquid in the flow guide shell flows downward under the action of gravity to form a water curtain. The tablets sprayed from the spraying port impact the water curtain formed by the coating liquid. When the tablets impact the water curtain formed by the coating liquid, the water curtain formed by the coating liquid wraps a layer of coating liquid on the outer surface of the tablets, thereby completing the coating operation of the tablets. The present application utilizes the tablets sprayed to impact the water curtain formed by the coating liquid to quickly complete the coating operation of the tablets. The tablets can be continuously extracted by the grain pumping pump for coating operation, and the coating operation of the tablets can be continuously performed, thereby improving the coating efficiency of the tablets.

Description

Technical Field

[0001] This invention relates to the field of coating machine technology, and in particular to a novel high-efficiency coating machine. Background Technology

[0002] A coating machine is a highly efficient, energy-saving, safe, and clean mechatronic device capable of organic film coating, water-soluble film coating, and sustained-release / controlled-release coating of tablets, pills, candies, etc. Coating machines are suitable for the pharmaceutical, chemical, and food industries. For example, Chinese patent application number 202021968222.X discloses "A High-Efficiency Intelligent Coating Machine for Novel Pharmaceuticals," relating to the field of coating machine technology. Existing high-efficiency intelligent coating machines suffer from poor stirring and coating effects on pills. The proposed solution includes a housing with an exhaust mechanism bolted to the top. A power mechanism is bolted through one side of the housing and is installed on one side of an open-type roller. Multiple guide tubes are installed on the inner wall of the open-type roller. Plate B, the perforated roller is located inside the housing, and the power mechanism is connected to the heating mechanism; When the above-mentioned coating machine coats tablets, the power mechanism needs to spirally convey the tablets. During the spiral conveying process, a coating sprayer is used to coat the outer surface of the tablets with coating liquid. This coating method can only coat a certain amount of tablets at a time, and then add the corresponding amount of tablets and repeat the coating operation. It is difficult to coat the tablets continuously, which affects the coating efficiency. Therefore, in order to solve this problem, we propose a new type of high-efficiency coating machine. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a new type of high-efficiency coating machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A novel high-efficiency coating machine includes a housing, within which a coating mechanism for coating tablets is provided;

[0006] The coating mechanism includes a mounting plate located inside the housing. A top plate is connected to the mounting plate via support columns. Collection frames are installed on opposite sides of the mounting plate and the top plate. A receiving shell is installed in the collection frame at the top of the mounting plate, and a guide shell, corresponding to the position of the receiving shell, is installed in the collection frame at the bottom of the top plate. A coating liquid tank is installed at the bottom of the mounting plate and is connected to the collection frame at the top of the mounting plate. A connecting pipe is connected to the side of the coating liquid tank, and a liquid pump is installed on the connecting pipe. The end of the connecting pipe is connected to the guide shell. The coating liquid flowing between the guide shell and the receiving shell forms a water curtain. A tablet spraying assembly for spraying tablets is installed on the mounting plate, and a drying assembly for drying the coated tablets is installed between the mounting plate and the top plate.

[0007] Preferably, the spraying assembly includes a support plate fixed to the mounting plate, a fixing plate installed on the top of the support plate, a grain pump installed on the fixing plate, a feeding hopper installed on the side of the support plate, a conveying pipe connected to the extraction end of the grain pump, a conveying pipe connected to the end of the feeding hopper, and a spraying port connected to the spraying end of the grain pump. The spraying port is located on the side of the water curtain formed by the coating liquid flowing between the guide shell and the receiving shell.

[0008] Preferably, a mounting base is installed on the fixing plate, and the grain pump is installed on the mounting base.

[0009] Preferably, a connecting plate is installed on the side of the support plate, the feeding hopper is installed at the end of the connecting plate, and the cross-section of the feeding hopper is inverted triangular.

[0010] Preferably, the drying assembly includes two hot air blowers mounted on opposite sides of the mounting plate and the top plate, with the receiving shell located between the spray port and the hot air blowers.

[0011] Preferably, the mounting plate and the top plate are provided with mounting grooves on their opposite sides, and the hot air blower is installed in the mounting grooves.

[0012] Preferably, the mounting plate and the top plate are each fixed with a fixing block on their opposite sides, a baffle is fixed between the two fixing blocks, and the hot air blower is located between the receiving shell and the baffle.

[0013] Preferably, the bottom of the baffle is provided with an inclined ramp, and a limiting groove is provided on the side of the baffle near the receiving shell, and a rubber plate is installed in the limiting groove.

[0014] Preferably, the mounting plate has a collection port located on the inclined slope side of the bottom of the baffle. A storage box is installed at the bottom of the mounting plate and is connected to the collection port. The tablets that slide off the baffle fall into the storage box through the collection port.

[0015] Preferably, the mounting plate has two strip plates fixed to its bottom, and the bottom of the two strip plates is fixed to the bottom wall of the housing. A first switch door is provided on one side of the housing, and a third switch door is provided on the other side of the housing. The first switch door is used to remove the finished product from the storage box, and the third switch door is used to add tablet raw materials to the feeding hopper. A second switch door is provided on the front of the housing, and the second switch door is used to add coating liquid raw materials to the coating liquid tank. A base plate is installed at the bottom of the housing, and two sets of fixing holes are symmetrically arranged on the base plate.

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

[0017] 1. In this invention, the coating liquid enters the guide shell through the connecting pipe. The coating liquid flows downward under its own gravity, forming a water curtain. The tablets sprayed from the spray port impact the water curtain formed by the coating liquid. When the tablets impact the water curtain formed by the coating liquid, the water curtain forms a layer of coating liquid on the outer surface of the tablets, thereby completing the coating operation of the tablets. It utilizes the impact of the sprayed tablets on the water curtain formed by the coating liquid to quickly complete the coating operation of the tablets. It can use a grain pump to continuously draw tablets for spraying and coating the tablets, so the coating operation of the tablets can be carried out continuously, thereby improving the coating efficiency of the tablets.

[0018] 2: In this invention, the hot air blown by the hot air blower quickly dries the freshly coated tablets. The coating liquid on the outer surface of the tablets forms a scab after being dried by the hot air blower. After the coated tablets pass through the hot air blower and are dried, they impact the rubber plate inside the baffle. The flexibility of the rubber plate prevents the tablets from deforming due to the impact. Furthermore, the scab formed on the surface of the coating liquid on the tablets by the hot air blower also provides some protection to the tablets and prevents the coating liquid on the tablets from deforming. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a novel high-efficiency coating machine proposed in this invention;

[0020] Figure 2 This is a schematic diagram of the structure of a novel high-efficiency coating machine proposed in this invention;

[0021] Figure 3 This is a schematic diagram of the connection structure between the mounting plate and the collection frame of a novel high-efficiency coating machine proposed in this invention;

[0022] Figure 4 This is a schematic diagram of the connection structure between the top plate and the collection frame of a novel high-efficiency coating machine proposed in this invention;

[0023] Figure 5 This is a schematic diagram of the mounting plate of a novel high-efficiency coating machine proposed in this invention;

[0024] Figure 6 This is a schematic diagram of the connection structure between the baffle and the rubber plate of a novel high-efficiency coating machine proposed in this invention;

[0025] Figure 7 This is a schematic diagram of the structure of the baffle of a novel high-efficiency coating machine proposed in this invention.

[0026] In the diagram: 1. Shell; 2. First switch door; 3. Second switch door; 4. Base plate; 5. Third switch door; 6. Mounting plate; 7. Support column; 8. Top plate; 9. Support plate; 10. Fixing plate; 11. Grain pump; 12. Conveying pipe; 13. Feeding hopper; 14. Connecting plate; 15. Spray port; 16. Collection frame; 17. Receiving shell; 18. Coating liquid tank; 19. Connecting pipe; 20. Liquid pump; 21. Hot air blower; 22. Fixing block; 23. Baffle; 24. Rubber plate; 25. Collection port; 26. Guide shell; 27. Strip plate; 28. Storage box; 29. ​​Mounting groove; 30. Limiting groove. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Reference Figure 1-7 A novel high-efficiency coating machine includes a housing 1, and a coating mechanism for coating tablets is provided inside the housing 1.

[0029] The coating mechanism includes a mounting plate 6 located inside the housing 1. A top plate 8 is connected to the mounting plate 6 via a support column 7. Collection frames 16 are installed on opposite sides of the mounting plate 6 and the top plate 8. A receiving shell 17 is installed inside the collection frame 16 at the top of the mounting plate 6. A guide shell 26, which matches the position of the receiving shell 17, is installed inside the collection frame 16 at the bottom of the top plate 8. A coating liquid tank 18 is installed at the bottom of the mounting plate 6 and is connected to the collection frame 16 at the top of the mounting plate 6. A connecting pipe 19 is connected to the side of the coating liquid tank 18. A liquid pump 20 is installed on the connecting pipe 19. The end of the connecting pipe 19 is connected to the guide shell 26. The coating liquid flowing between the guide shell 26 and the receiving shell 17 forms a water curtain. A tablet spraying assembly for spraying tablets is installed on the mounting plate 6. A drying assembly for drying the coated tablets is installed between the mounting plate 6 and the top plate 8.

[0030] As a technical optimization of the present invention, the spraying assembly includes a support plate 9 fixed on a mounting plate 6, a fixing plate 10 mounted on the top of the support plate 9, a grain pump 11 mounted on the fixing plate 10, a feeding hopper 13 mounted on the side of the support plate 9, a conveying pipe 12 connected to the extraction end of the grain pump 11, the end of the conveying pipe 12 connected to the feeding hopper 13, and a spraying port 15 connected to the spraying end of the grain pump 11. The spraying port 15 is located on the side of the water curtain formed by the coating liquid flowing between the guide shell 26 and the receiving shell 17. The grain pump 11 draws the tablets from the feeding hopper 13 into the grain pump 11 through the conveying pipe 12, and sprays the tablets out through the spray port 15 connected to the spray end of the grain pump 11. The tablets sprayed out through the spray port 15 impact the water curtain formed by the coating liquid. When the tablets impact the water curtain formed by the coating liquid, the water curtain formed by the coating liquid coats the outer surface of the tablets with a layer of coating liquid, thereby completing the coating operation of the tablets. It uses the impact of the sprayed tablets on the water curtain formed by the coating liquid to quickly complete the coating operation of the tablets.

[0031] As a technical optimization of the present invention, a mounting base is installed on the fixing plate 10, and the grain pump 11 is installed on the mounting base. The mounting base installed on the fixing plate 10 can provide a mounting surface for the grain pump 11, which facilitates the installation and fixing of the grain pump 11.

[0032] As a technical optimization of the present invention, a connecting plate 14 is installed on the side of the support plate 9, and a feeding hopper 13 is installed at the end of the connecting plate 14. The cross-section of the feeding hopper 13 is inverted triangular. The inverted triangular cross-section of the feeding hopper 13 makes it easy for the tablets in the feeding hopper 13 to always remain at the bottom of the feeding hopper 13, thereby making it easy for the conveying pipe 12 connected to the grain pump 11 to extract the tablets in the feeding hopper 13.

[0033] As a technical optimization of the present invention, the drying assembly includes two hot air blowers 21 installed on opposite sides of the mounting plate 6 and the top plate 8. The receiving shell 17 is located between the spray port 15 and the hot air blowers 21. The hot air blown out by the hot air blowers 21 quickly dries the freshly coated tablets. The coating liquid on the outer surface of the tablets forms a scab after being dried by the hot air blowers 21. After the coated tablets pass through the hot air blowers 21 and are dried, they impact the rubber plate 24 inside the baffle 23. The flexibility of the rubber plate 24 prevents the tablets from deforming due to impact. The scab formed on the surface of the coating liquid on the tablets by the hot air blowers 21 also provides some protection to the tablets and prevents the coating liquid on the tablets from deforming.

[0034] As a technical optimization of the present invention, mounting grooves 29 are provided on the opposite surfaces of the mounting plate 6 and the top plate 8. The hot air blower 21 is installed in the mounting groove 29. The mounting groove 29 can provide a mounting surface for the hot air blower 21 and can provide a certain limiting effect on the hot air blower 21, thereby improving the installation stability of the hot air blower 21.

[0035] As a technical optimization of the present invention, fixing blocks 22 are fixed on the opposite surfaces of the mounting plate 6 and the top plate 8, and a baffle 23 is fixed between the two fixing blocks 22. The hot air blower 21 is located between the receiving shell 17 and the baffle 23. The coating liquid on the surface of the tablet after impacting the rubber plate 24 dries over time and slides down the baffle 23. It also slides down the inclined slope at the bottom of the baffle 23 into the collection port 25. The baffle 23 can provide a blocking effect on the tablet after the coating operation is completed, so that the coated tablet can enter the storage box 28 for storage.

[0036] As a technical optimization of the present invention, the bottom of the baffle 23 is provided with an inclined slope, and a limiting groove 30 is provided on the side of the baffle 23 near the receiving shell 17. A rubber plate 24 is installed in the limiting groove 30. After the tablets are coated, they pass through the hot air blower 21 to dry and then impact the rubber plate 24 in the baffle 23. The softness of the rubber plate 24 is used to prevent the tablets from being deformed by impact.

[0037] As a technical optimization of the present invention, a collection port 25 is provided on the mounting plate 6. The collection port 25 is located on the inclined slope side of the bottom of the baffle 23. A storage box 28 is installed at the bottom of the mounting plate 6. The storage box 28 is connected to the collection port 25. The tablets that slide off the baffle 23 fall into the storage box 28 through the collection port 25.

[0038] As a technical optimization of the present invention, two strip plates 27 are fixed to the bottom of the mounting plate 6. The bottom of the two strip plates 27 is fixed to the inner bottom wall of the housing 1. A first switch door 2 is provided on one side of the housing 1. Opening the first switch door 2 allows the coated tablets in the storage box 28 to be taken out and discharged. A third switch door 5 is provided on the other side of the housing 1. The first switch door 2 is used to take out the finished product in the storage box 28. The third switch door 5 is used to add tablet raw materials to the feeding hopper 13. A second switch door 3 is provided on the front of the housing 1. The second switch door 3 is used to add coating liquid raw materials to the coating liquid tank 18. A base plate 4 is installed at the bottom of the housing 1. Two sets of fixing holes are symmetrically arranged on the base plate 4. The fixing holes on the base plate 4 can facilitate the fixing of the base plate 4, thereby facilitating the installation and fixing of the housing 1.

[0039] When using this invention, first open the third switch door 5 and add the tablets that need to be coated into the feeding hopper 13 inside the housing 1.

[0040] At this time, the liquid pump 20 is started. The liquid pump 20 draws the coating liquid in the coating liquid tank 18 into the connecting pipe 19, and the coating liquid enters the guide shell 26 through the connecting pipe 19. The coating liquid flowing through the guide shell 26 flows downward under its own gravity to form a water curtain. The water curtain then enters the collection frame 16 on the mounting plate 6 through the receiving shell 17 at the bottom of the water curtain. Since the coating liquid tank 18 at the bottom of the mounting plate 6 is connected to the collection frame 16 on the mounting plate 6, the coating liquid entering the collection frame 16 on the mounting plate 6 can return to the coating liquid tank 18 to form a cycle. Thus, the coating liquid flowing between the guide shell 26 and the receiving shell 17 forms a water curtain composed of coating liquid.

[0041] At this time, the grain pump 11 is activated. The grain pump 11 draws the tablets from the feeding hopper 13 into the grain pump 11 through the conveying pipe 12, and then sprays the tablets out through the spray port 15 connected to the spray end of the grain pump 11. The tablets sprayed out through the spray port 15 impact the water curtain formed by the coating liquid. When the tablets impact the water curtain formed by the coating liquid, the water curtain forms a layer of coating liquid on the outer surface of the tablets, thereby completing the coating operation of the tablets. It uses the impact of the sprayed tablets on the water curtain formed by the coating liquid to quickly complete the coating of the tablets. The system utilizes a grain pump 11 to continuously extract and spray tablets for coating, allowing for uninterrupted tablet coating and thus improving coating efficiency. Furthermore, the grain pump 11 can spray multiple tablets simultaneously for coating, requiring only a sufficient supply of coating solution for continuous operation. Adding coating solution or tablets later does not require stopping the machine; coating solution or tablets can be added simultaneously during the coating process, further enhancing coating efficiency.

[0042] Furthermore, after the sprayed tablets pass through the water curtain formed by the coating liquid to complete the coating process, they are then impacted laterally. Simultaneously, the hot air blower 21 between the mounting plate 6 and the top plate 8 is activated. The hot air blown by the hot air blower 21 quickly dries the newly coated tablets. The coating liquid layer on the outer surface of the tablets forms a scab after being dried by the hot air blower 21. After passing through the hot air blower 21 and being dried, the coated tablets impact the rubber plate 24 inside the baffle 23. The flexibility of the rubber plate 24 prevents the tablets from deforming upon impact. Furthermore, the coating liquid on the tablets forms a crust after being heated by the hot air blower 21, which also provides some protection to the tablets and prevents the coating liquid on the tablets from deforming. The coating liquid on the surface of the tablets after impacting the rubber plate 24 dries over time and slides down the baffle 23, and slides into the collection port 25 through the inclined slope at the bottom of the baffle 23. The tablets that pass through the collection port 25 finally fall into the storage box 28 for storage. The coated tablets in the storage box 28 can be taken out and discharged by opening the first switch door 2.

[0043] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A novel high-efficiency coating machine, comprising a housing (1), characterized in that, The housing (1) is provided with a coating mechanism for coating tablets; The coating mechanism includes a mounting plate (6) located inside the housing (1). A top plate (8) is connected to the mounting plate (6) via a support column (7). Collection frames (16) are installed on opposite sides of the mounting plate (6) and the top plate (8). A receiving shell (17) is installed inside the collection frame (16) at the top of the mounting plate (6). A guide shell (26) matching the position of the receiving shell (17) is installed inside the collection frame (16) at the bottom of the top plate (8). A coating liquid tank (18) is installed at the bottom of the mounting plate (6). 18) Connected to the collection frame (16) at the top of the mounting plate (6), the coating liquid tank (18) is connected to the side of the connecting pipe (19), the connecting pipe (19) is equipped with a liquid pump (20), the end of the connecting pipe (19) is connected to the guide shell (26), the coating liquid flowing between the guide shell (26) and the receiving shell (17) forms a water curtain state, the mounting plate (6) is equipped with a tablet spraying assembly for spraying tablets, and a drying assembly for drying the coated tablets is provided between the mounting plate (6) and the top plate (8).

2. The novel high-efficiency coating machine according to claim 1, characterized in that, The spraying assembly includes a support plate (9) fixed on the mounting plate (6), a fixing plate (10) is installed on the top of the support plate (9), a grain pump (11) is installed on the fixing plate (10), a feeding hopper (13) is installed on the side of the support plate (9), the extraction end of the grain pump (11) is connected to a conveying pipe (12), the end of the conveying pipe (12) is connected to the feeding hopper (13), the spraying end of the grain pump (11) is connected to a spraying port (15), and the spraying port (15) is located on the side of the water curtain formed by the coating liquid flowing between the guide shell (26) and the receiving shell (17).

3. The novel high-efficiency coating machine according to claim 2, characterized in that, The mounting base is installed on the fixed plate (10), and the grain pump (11) is installed on the mounting base.

4. A novel high-efficiency coating machine according to claim 2, characterized in that, A connecting plate (14) is installed on the side of the support plate (9), and a feeding hopper (13) is installed at the end of the connecting plate (14), and the cross section of the feeding hopper (13) is inverted triangular.

5. A novel high-efficiency coating machine according to claim 4, characterized in that, The drying assembly includes two hot air blowers (21) installed on opposite sides of the mounting plate (6) and the top plate (8), with the receiving shell (17) located between the spray port (15) and the hot air blowers (21).

6. A novel high-efficiency coating machine according to claim 5, characterized in that, The mounting plate (6) and the top plate (8) are provided with mounting grooves (29) on their opposite sides, and the hot air blower (21) is installed in the mounting grooves (29).

7. A novel high-efficiency coating machine according to claim 5, characterized in that, The mounting plate (6) and the top plate (8) are each fixed with a fixing block (22), and a baffle (23) is fixed between the two fixing blocks (22). The hot air blower (21) is located between the receiving shell (17) and the baffle (23).

8. A novel high-efficiency coating machine according to claim 7, characterized in that, The bottom of the baffle (23) is provided with an inclined slope, and a limiting groove (30) is provided on the side of the baffle (23) near the receiving shell (17), and a rubber plate (24) is installed in the limiting groove (30).

9. A novel high-efficiency coating machine according to claim 8, characterized in that, The mounting plate (6) has a collection port (25) located on the inclined slope side of the bottom of the baffle (23). A storage box (28) is installed at the bottom of the mounting plate (6). The storage box (28) is connected to the collection port (25). The tablets that slide off the baffle (23) fall into the storage box (28) through the collection port (25).

10. A novel high-efficiency coating machine according to claim 9, characterized in that, The mounting plate (6) has two strip plates (27) fixed at the bottom. The bottom of the two strip plates (27) is fixed to the inner bottom wall of the housing (1). A first switch door (2) is provided on one side of the housing (1), and a third switch door (5) is provided on the other side of the housing (1). The first switch door (2) is used to take out the finished product in the storage box (28), and the third switch door (5) is used to add the raw material of the tablet into the feeding hopper (13). A second switch door (3) is provided on the front of the housing (1). The second switch door (3) is used to add the raw material of the coating liquid into the coating liquid tank (18). A bottom plate (4) is installed at the bottom of the housing (1), and two sets of fixing holes are symmetrically arranged on the bottom plate (4).

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