Amitriptyline tablet coating device

Abstract

The amitriptyline tablet coating device comprises a water chestnut type pot body, a breathable net is fixedly installed in the water chestnut type pot body, an inner cavity of the water chestnut type pot body is covered with the breathable net, and gaps are formed between the breathable net and the inner wall of the water chestnut type pot body at equal intervals; an air injection pipeline is further arranged in the inner cavity of the water chestnut type pot body, the air injection pipeline is kept static when the water chestnut type pot body rotates, the air injection pipeline extends from one end of the water chestnut type pot body to the other end of the water chestnut type pot body, and equidistant gaps are formed between the air injection pipeline and the ventilation net in the water chestnut type pot body; when the water chestnut type pot body rotates, tablets in the water chestnut type pot body form a relatively stable rolling face, the air spraying pipeline is parallel to the rolling face and arranged on the outer side of the rolling face, and the air spraying direction of an air spraying opening formed in the air spraying pipeline faces the rolling face and is perpendicular to the rolling face. The hot air system and the spraying system can be used at the same time, the coating efficiency is high, and the problem of mutual interference does not exist when the hot air system and the spraying system are used at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, in particular to a coating device for amitriptyline tablets. Background Art

[0002] Amitriptyline is a drug used to treat depression, especially suitable for anxiety or agitated depression, with a sedative effect. It improves mood by regulating the balance of neurotransmitters in the brain, relieves depression and anxiety symptoms, and helps improve sleep quality.

[0003] The coating machine plays an important role in the manufacturing process of amitriptyline tablets. The coating machine consists of multiple systems, each of which undertakes specific functions and tasks and cooperates to complete the coating process. Among them, a hot air system and a spraying system are mainly arranged in the coating machine pot body (drum). The hot air system and the spraying system cooperate closely during the coating process to jointly achieve uniform coating on the surface of drugs or foods. The spraying system first sprays the coating material or solvent onto the surface of drugs or foods to form a wet coating film. Subsequently, the hot air system is started to dry the surface of drugs or foods, so that the coating material is quickly solidified and forms a firm surface film.

[0004] The water chestnut-shaped pot body has significant advantages among various coating machine pot bodies (drums). When the water chestnut-shaped pot body of the coating machine rotates, the tablets in the pot body will be affected by various forces, including gravity, the supporting force of the pot body on the tablets, and the centripetal force generated due to the rotation of the pot body, causing the tablets to perform complex movements, including sliding or rolling along the wall surface of the pot body and circular motion around the rotation center of the pot body. Moreover, due to the special shape (water chestnut shape) of the pot body, it further promotes the uniform distribution of tablets and the uniformity of coating. Therefore, the overall shape of the tablets will present a dynamic and relatively uniform distribution state, which helps the tablets to be evenly coated with the coating material during the coating process.

[0005] However, in the water chestnut-shaped pot body, when the spraying system and the hot air system are used alternately, there will be a problem of low coating efficiency. Moreover, if the spraying time of the spraying system is too long and too much coating liquid is caused, it will also affect the coating quality. For example, a tablet coating device and method disclosed in Chinese invention patent CN202211268375.7, in which the spraying system and the hot air system are used alternately, and the coating efficiency is low. When the hot air system and the spraying system are used simultaneously, there will also be a problem of mutual interference. The hot air will affect the spray ejected by the spraying system. For example, a coating machine with a special drum structure disclosed in Chinese invention patent CN99113552.0, in which the hot air in the hot air pipe circulates and affects the spray ejected by the spray gun, resulting in a certain degree of reduction in coating efficiency and coating quality. Summary of the Utility Model

[0006] The utility model aims to provide an amitriptyline tablet coating device, which is used to solve the above problems existing in the prior art.

[0007] In order to solve the above problems, the utility model provides an amitriptyline tablet coating device, comprising a water chestnut-type pot body, a breathable net is fixedly installed in the water chestnut-type pot body, the breathable net covers the inner cavity of the water chestnut-type pot body, and an equidistant gap is arranged between the breathable net and the inner wall of the water chestnut-type pot body; a jet pipeline is also arranged in the inner cavity of the water chestnut-type pot body, the jet pipeline remains stationary when the water chestnut-type pot body rotates, the jet pipeline extends from one end of the water chestnut-type pot body to the other end, and an equidistant gap is arranged between the jet pipeline in the water chestnut-type pot body and the breathable net; when the water chestnut-type pot body rotates, the tablets therein form a relatively stable tumbling surface, the jet pipeline is parallel to the tumbling surface and is arranged outside the tumbling surface, and the jet direction of the jet port arranged on the jet pipeline is toward the tumbling surface and perpendicular to the tumbling surface.

[0008] The amitriptyline tablet coating device provided by the utility model also has the following technical features:

[0009] Furthermore, the air-permeable net includes a plurality of arc-shaped mesh pieces, and the arc-shaped mesh pieces are fixedly arranged between two arc-shaped grid frames, and the arc-shaped grid frames extend from one end to the other end of the water chestnut-shaped pot body.

[0010] Furthermore, a plurality of support rods are fixedly provided on the arc-shaped grid, and the support rods are in contact with the inner wall of the water chestnut-shaped pot body.

[0011] Furthermore, fixing plates for fixing the ends of multiple arc-shaped grids are provided at both ends of the water chestnut-shaped pot body.

[0012] Furthermore, the arc-shaped grids between two adjacent arc-shaped mesh sheets are interference fit.

[0013] Furthermore, the arc-shaped grid extends from the surface of the arc-shaped mesh sheet to the inner cavity of the water chestnut-shaped pot body, so that the arc-shaped grid can move the tablets.

[0014] Furthermore, the jet pipeline is connected to one end of the water chestnut-shaped pot body through an end bearing.

[0015] Furthermore, the jet port provided on the jet pipeline sprays out elliptical conical gas, wherein the minor axis of the ellipse coincides with the radial direction of the water chestnut-shaped pot body.

[0016] Furthermore, the elliptical cone-shaped gas partially overlaps with the tumbling surface.

[0017] Furthermore, the gas jets are arranged at equal intervals on the gas jet pipeline, and adjacent elliptical cone-shaped gas portions overlap.

[0018] The utility model has the following beneficial effects: in the amitriptyline tablet coating device of the utility model, the hot air system and the spraying system can be used simultaneously, with high coating efficiency and no problem of mutual interference when used simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 is Figure 1 a sectional view along line A-A in

[0021] Figure 3 is Figure 1 a sectional view along line B-B in

[0022] Figure 4 is a schematic diagram of the structure of the air permeable net and the spray pipeline;

[0023] Figure 5 is a schematic diagram of the operation inside the water chestnut-shaped pot body;

[0024] In the figure, the reference numerals are: water chestnut-shaped pot body 1, end bearing 11, air permeable net 2, arc-shaped net piece 21, arc-shaped net frame 22, support rod 23, fixed disk 24, spray pipeline 3, coating liquid nozzle 4, rotating shaft 5, rotation direction c, jet direction d, tumbling surface e, spraying direction f. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0026] As Figures 1 to 5 shown in the embodiment of the amitriptyline tablet coating device of the present utility model, the amitriptyline tablet coating device includes a water chestnut-shaped pot body 1, the water chestnut-shaped pot body 1 is inclined, among the two ends of the water chestnut-shaped pot body 1, the end with a higher horizontal position is the feeding port, the end with a lower horizontal position is fixedly connected with a rotating shaft 5, the rotating shaft 5 is connected with a motor through a coupling to drive the water chestnut-shaped pot body 1 to rotate around its own axis; a coating liquid pipeline extends inward from the feeding port of the water chestnut-shaped pot body 1, and several coating liquid nozzles 4 are connected in parallel on the coating liquid pipeline, and the coating liquid nozzles 4 are used to uniformly spray the coating liquid into the water chestnut-shaped pot body 1 onto the tablets to complete the coating process.

[0027] As Figure 5As shown, the water chestnut-shaped pot body 1 is driven by the rotating shaft 5 to rotate. When the rotation direction is c, the tablets inside it will perform complex movements, forming a relatively stable tumbling surface e. At this time, the best setting position of the coating liquid nozzle 4 of the spraying system is directly above the graphic midpoint of the tumbling surface e (i.e., the spraying direction f shown in the figure), so that the spray can cover as many tablets tumbling in the water chestnut-shaped pot body 1 (i.e., the tumbling surface e) as possible.

[0028] In this embodiment, a ventilation net 2 is fixedly installed inside the water chestnut-shaped pot body 1. The ventilation net 2 covers the inner cavity of the water chestnut-shaped pot body 1, and an equidistant gap is provided between the ventilation net 2 and the inner wall of the water chestnut-shaped pot body 1. In this way, the tablets inside the water chestnut-shaped pot body 1 directly tumble on the ventilation net 2, forming a certain distance gap between the water chestnut-shaped pot body 1 and the tablets due to the ventilation net 2. Hot air passes through this gap to increase the contact area between the tablets and the hot air, and the flow of hot air in this gap will not affect the spray ejected by the coating liquid nozzle 4.

[0029] Moreover, a gas spraying pipeline 3 is also provided inside the water chestnut-shaped pot body 1. The gas spraying pipeline 3 remains stationary when the water chestnut-shaped pot body 1 rotates. Specifically, one end of the gas spraying pipeline 3 can extend out from the feeding port of the water chestnut-shaped pot body 1 and be fixedly arranged on the frame. In this way, when the water chestnut-shaped pot body 1 rotates around its own axis, the gas spraying pipeline 3 can remain stationary.

[0030] The gas spraying pipeline 3 extends from one end of the water chestnut-shaped pot body 1 to the other end. An equidistant gap is provided between the gas spraying pipeline 3 and the ventilation net 2 inside the water chestnut-shaped pot body 1, so that when the water chestnut-shaped pot body 1 rotates, the ventilation net 2 and the gas spraying pipeline 3 will not interfere with each other. The gas spraying pipeline 3 is parallel to the tumbling surface e and is arranged outside the tumbling surface e. The jetting direction d of the jetting openings provided on the gas spraying pipeline 3 faces the tumbling surface e and is perpendicular to the tumbling surface e, and thus the jetting direction d is parallel to the spraying direction f. In this way, the gas spraying pipeline 3 can stably supply hot air to the gap between the water chestnut-shaped pot body 1 and the ventilation net 2, and at the same time supply a small amount of hot air to the tumbling surface e, which will neither affect the spray head 5 too much, nor face the tablets that have just been sprayed with the coating liquid, making the coating liquid on the tablets dry more quickly.

[0031] For the amitriptyline tablet coating device of the present utility model, the hot air system and the spraying system can be used simultaneously, with high coating efficiency and no problem of mutual interference when used simultaneously.

[0032] In an embodiment of the present application, preferably, the ventilation net 2 includes a plurality of arc-shaped net pieces 21. The arc-shaped net pieces 21 are fixedly arranged between two arc-shaped frameworks 22. The arc-shaped frameworks 22 extend from one end of the water chestnut-shaped pot body 1 to the other end. The arc-shaped frameworks 22 make the assembly of the ventilation net 2 more convenient.

[0033] In one embodiment of the present application, preferably, a plurality of support rods 23 are fixedly provided on the arc-shaped grid frame 22, and the support rods 23 abut against the inner wall of the water chestnut-shaped pot body 1; thus, the space between the two arc-shaped mesh sheets 21 can communicate through the gaps between the support rods 23.

[0034] In one embodiment of the present application, preferably, fixing disks 24 for fixing the ends of a plurality of arc-shaped grid frames 22 are provided at both ends of the water chestnut-shaped pot body 1, so that the air-permeable net 2 is fixed more firmly.

[0035] In one embodiment of the present application, preferably, the arc-shaped grid frames 22 between two adjacent arc-shaped mesh sheets 21 are in interference fit, so that the air-permeable net 2 is fixed more firmly.

[0036] In one embodiment of the present application, preferably, the arc-shaped grid frame 22 extends from the surface of the arc-shaped mesh sheet 21 into the inner cavity of the water chestnut-shaped pot body 1, so that the arc-shaped grid frame 22 can push the tablets to drive the tablets to roll over.

[0037] In one embodiment of the present application, preferably, one end of the air injection pipeline 3 is connected to the water chestnut-shaped pot body 1 through an end bearing 11, and the end bearing 11 can be arranged at the end of the water chestnut-shaped pot body 1 where a rotating shaft 5 is fixedly connected, so that both ends of the air injection pipeline 3 can be fixed to prevent displacement and interference with the rotating water chestnut-shaped pot body 1.

[0038] In one embodiment of the present application, preferably, the air injection port provided on the air injection pipeline 3 ejects an elliptical conical gas, wherein the short axis of the ellipse coincides with the radial direction of the water chestnut-shaped pot body 1, and the long axis of the ellipse is perpendicular to the short axis of the ellipse. In this way, the hot air ejected from the air injection port provided on the air injection pipeline 3 stably provides hot air to the gap between the water chestnut-shaped pot body 1 and the air-permeable net 2 in the direction of the short axis of the ellipse, and the hot air continues to travel along the inner wall of the water chestnut-shaped pot body 1, so that more hot air covers the tablets.

[0039] In one embodiment of the present application, preferably, the elliptical conical gas partially coincides with the rolling surface, so that a small amount of hot air can be provided to the rolling surface e, and the coating liquid on the tablets can be dried more quickly.

[0040] In one embodiment of the present application, preferably, the air injection ports are arranged at equal intervals on the air injection pipeline 3, and the adjacent elliptical conical gases partially coincide to improve the drying efficiency.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An amitriptyline tablet coating device, comprising a water chestnut-shaped pot body (1), characterized in that, An air-permeable net (2) is fixedly installed inside the water chestnut-shaped pot body (1). The air-permeable net (2) covers the inner cavity of the water chestnut-shaped pot body (1), and an equidistant gap is provided between the air-permeable net (2) and the inner wall of the water chestnut-shaped pot body (1); a gas spray pipeline (3) is further provided in the inner cavity of the water chestnut-shaped pot body (1). The gas spray pipeline (3) remains stationary when the water chestnut-shaped pot body (1) rotates. The gas spray pipeline (3) extends from one end of the water chestnut-shaped pot body (1) to the other end, and an equidistant gap is provided between the gas spray pipeline (3) and the air-permeable net (2) inside the water chestnut-shaped pot body (1); when the water chestnut-shaped pot body (1) rotates, the tablets inside it form a relatively stable tumbling surface. The gas spray pipeline (3) is parallel to the tumbling surface and is arranged outside the tumbling surface. The jet direction of the jet orifices provided on the gas spray pipeline (3) faces the tumbling surface and is perpendicular to the tumbling surface.

2. The amitriptyline tablet coating device according to claim 1, wherein The air-permeable net (2) includes a plurality of arc-shaped mesh sheets (21). The arc-shaped mesh sheets (21) are fixedly arranged between two arc-shaped wire frames (22). The arc-shaped wire frames (22) extend from one end of the water chestnut-shaped pot body (1) to the other end.

3. The amitriptyline tablet coating device according to claim 2, wherein A plurality of support rods (23) are fixedly arranged on the arc-shaped wire frames (22). The support rods (23) abut against the inner wall of the water chestnut-shaped pot body (1).

4. The amitriptyline tablet coating device according to claim 2, characterized in that, Fixing plates (24) for fixing the ends of a plurality of arc-shaped wire frames (22) are provided at both ends of the water chestnut-shaped pot body (1).

5. The amitriptyline tablet coating device according to claim 2, characterized in that, The arc-shaped wire frames (22) between two adjacent arc-shaped mesh sheets (21) are in interference fit.

6. The amitriptyline tablet coating device according to claim 2, characterized in that, The arc-shaped wire frames (22) extend from the surface of the arc-shaped mesh sheets (21) towards the inner cavity of the water chestnut-shaped pot body (1), so that the arc-shaped wire frames (22) can stir the tablets.

7. The amitriptyline tablet coating device according to claim 1, wherein, The gas spray pipeline (3) is connected to one end of the water chestnut-shaped pot body (1) through an end bearing (11).

8. The amitriptyline tablet coating device according to claim 1, characterized in that, The jet orifices provided on the gas spray pipeline (3) spray out elliptical conical gases, and the short axis of the ellipse coincides with the radial direction of the water chestnut-shaped pot body (1).

9. The amitriptyline tablet coating device according to claim 8, wherein, The elliptical conical gas partially coincides with the tumbling surface.

10. The amitriptyline tablet coating device according to claim 8, characterized in that, The jet orifices are arranged equidistantly on the gas spray pipeline (3), and adjacent elliptical conical gases partially coincide.

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