CN-121987497-A - Shell equipment applied to coating machine and continuous coating machine

CN121987497ACN 121987497 ACN121987497 ACN 121987497ACN-121987497-A

Abstract

The invention provides shell equipment applied to a coating machine and a continuous coating machine, and relates to the technical field of pharmaceutical equipment, comprising an outer shell, wherein at least two coating chambers are arranged in series in the outer shell; a conveying mechanism for conveying the material from the current coating chamber to the next coating chamber; a separation structure is arranged between the adjacent coating chambers, and a connecting channel capable of connecting the two adjacent coating chambers is arranged on the separation structure; the invention is convenient to ensure dynamic balance of the tablet wetting and drying process in each coating cavity, strictly controls the coating quality of the tablet at each stage and improves the coating uniformity of the tablet.

Inventors

HE ZHIZHEN
HE CHENYANG
DU XIAOLANG
Zhang Rongdai

Assignees

创志科技(江苏)股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260331

Claims (14)

1. A housing apparatus for a coating machine, comprising: An outer shell having at least two coating chambers disposed in series therein; a conveying mechanism for conveying the material from the current coating chamber to the next coating chamber; The coating device is characterized in that a separation structure is arranged between two adjacent coating chambers, a connecting channel capable of connecting the two adjacent coating chambers is arranged on the separation structure, and the coating device further comprises an opening and closing mechanism for changing the opening and closing states of the connecting channels.
2. The housing apparatus for a coating machine according to claim 1, wherein the outer housing comprises a barrel that performs a swinging or rotational movement, at least one of the dividing structures being provided inside the barrel, the dividing structure dividing the barrel interior into at least two coating chambers distributed in an axial direction.
3. The housing apparatus for a coating machine according to claim 1 or 2, wherein the opening and closing mechanism comprises a driving assembly and a door body rotated under the driving assembly to open or close the connection passage, and an end of the door body abuts against a next partition structure after the door body is opened to isolate a current connection passage from a next connection passage.
4.A casing apparatus for a coating machine according to claim 3, wherein the door body is rotatably connected to the partition structure by a hinge shaft, and the door body is fixedly connected to the hinge shaft so as to move the door body when the hinge shaft rotates, and the driving assembly drives the hinge shaft to rotate.
5. The coating machine according to claim 4, wherein at least two hinge shafts are fixedly provided with rotating arms, the rotating arms of at least two hinge shafts are hinged on the same deflector rod, the driving assembly drives one rotating arm to rotate so as to drive the deflector rod to move through the rotating arms, and at least two door bodies are driven to synchronously open or close through the deflector rod.
6. The housing apparatus for a coating machine according to claim 5, wherein the driving assembly includes a telescopic power part, a telescopic end of which is hinged to an end of one of the rotating arms to drive the rotating arm to rotate about the hinge shaft.
7. The housing apparatus for a coating machine according to claim 6, wherein the telescopic power section is a hydraulic cylinder, a pneumatic cylinder or an electric telescopic rod.
8. The housing apparatus for a coating machine according to claim 1 or 2, wherein the partition structure comprises a partition plate provided in the outer housing, and the partition plate is notched to form the connection passage.
9. A housing apparatus for a coating machine according to claim 2, wherein the conveying means comprises a deflector provided on the inner wall of the coating chamber, the deflector having an inclined surface and/or a spiral surface to deflect the material to the connecting channel during the oscillation or rotation of the drum.
10. A continuous coating machine, comprising: A casing device for a coating machine according to any one of claims 1 to 9; the liquid spraying mechanism is used for spraying liquid to the materials and is arranged in one or more coating cavities; And a drying mechanism for drying the material in the coating chamber, wherein the drying mechanism is at least arranged in the coating chamber at the tail end.
11. The continuous coating machine of claim 10, wherein the spray mechanism comprises a liquid feed rod axially disposed within the outer housing, a liquid feed passage and a gas feed passage being disposed in the liquid feed rod, a nozzle being disposed on the liquid feed rod, the nozzle being in communication with both the liquid feed passage and the gas feed passage, at least one of the nozzles being disposed within each of the coating chambers.
12. The continuous coating machine of claim 10, wherein the drying mechanism comprises an air supply assembly having an air inlet and an air outlet on the side walls of the outer housing, the air supply assembly configured to supply air into the coating chamber.
13. The continuous coating machine of claim 12, wherein the air supply assembly comprises an air cabin and an air supply portion, an air inlet and an air outlet are formed in the air cabin, an air outlet end of the air supply portion is communicated with the air inlet, and the outer shell is arranged in the air cabin.
14. The continuous coating machine according to claim 13, wherein an air volume partition is disposed in the air cabin, an air inlet area is formed between adjacent air volume partitions, the air inlet area is provided with the air inlet, and one air inlet area corresponds to at least one coating chamber.

Description

Shell equipment applied to coating machine and continuous coating machine Technical Field The invention relates to the technical field of pharmaceutical equipment, in particular to shell equipment applied to a coating machine and a continuous coating machine. Background The traditional tablet coating process adopts a drum-type or elongated coating pot structure, and is characterized in that the uniform coverage of spray liquid and hot air drying are realized by utilizing the rolling motion of tablets in a long drum or a rotary pot body. However, existing long-cartridge or elongated coating pans have the following problems: The back mixing is serious, namely, the movement path of the tablets in a coating pot with a large space is complex, and although the traditional coating pot is obliquely arranged, the tablets can move towards the tail end of the coating pot under the action of gravity, the back mixing phenomenon is easy to occur, the residence time of the back mixed tablets in the coating pot is prolonged, and the coating quality of the back mixed tablets can be obviously influenced. The coating uniformity is poor, when the tablets are in different stages in the coating pot, the wetting parameters and the drying parameters are different, but the wetting process and the drying process in the coating pot are difficult to strictly control in a partitioning way, so that the difference of liquid receiving amount and drying degree of different tablets is larger, and the difference between product batches and tablets is high. Accordingly, there is a need to develop an apparatus to solve the above technical problems. Disclosure of Invention The invention aims to provide a shell device applied to a coating machine and a continuous coating machine, so as to solve the problems in the prior art, ensure dynamic balance of a tablet wetting and drying process in each coating chamber, strictly control the coating quality of the tablet at each stage and improve the coating uniformity of the tablet. In order to achieve the above object, the present invention provides the following solutions: A shell device applied to a coating machine comprises an outer shell, a conveying mechanism, a separation structure and an opening and closing mechanism, wherein at least two coating cavities are arranged in the outer shell in series, the conveying mechanism is used for conveying materials from a current coating cavity to a next coating cavity, the separation structure is arranged between every two adjacent coating cavities and is provided with a connecting channel capable of connecting the two adjacent coating cavities, and the opening and closing mechanism is used for changing the opening and closing states of the connecting channels. As an embodiment, the outer shell comprises a cylinder body which performs swinging or rotating motion, at least one separation structure is arranged inside the cylinder body, and the separation structure separates the inner cavity of the cylinder body into at least two coating chambers which are distributed along the axial direction. As an embodiment, the opening and closing mechanism includes a driving assembly and a door body rotating under the driving assembly to open or close the connection channel, and after the door body is opened, an end of the door body abuts against the next separation structure to isolate the current connection channel from the next connection channel. As an implementation mode, the door body is rotationally connected to the separation structure through a hinge shaft, the door body is fixedly connected with the hinge shaft, the door body is driven to move when the hinge shaft rotates, and the driving assembly drives the hinge shaft to rotate. As an implementation mode, at least two hinge shafts are fixedly provided with rotating arms, the rotating arms of the at least two hinge shafts are hinged to the same deflector rod, the driving assembly drives one rotating arm to rotate, so that the deflector rod is driven to move through the rotating arms, and at least two door bodies are driven to be synchronously opened or synchronously closed through the deflector rod. As an embodiment, the driving assembly comprises a telescopic power part, and the telescopic end of the telescopic power part is hinged with the end part of one of the rotating arms so as to drive the rotating arms to rotate around the hinge shaft. As an embodiment, the telescopic power unit is a hydraulic cylinder, a pneumatic cylinder or an electric telescopic rod. As an embodiment, the separation structure includes a partition plate disposed in the outer housing, and a notch is formed on the partition plate to form the connection channel. As an embodiment, the conveying mechanism comprises a guide vane arranged on the inner wall of the coating chamber, wherein the guide vane is provided with an inclined surface and/or a spiral surface so as to guide the material to the connecting channel during the swinging or rot