A coating device for pharmaceutical tablets

Abstract

The utility model discloses a coating device for pharmaceutical tablets, and relates to the technical field related to pharmaceutical processing. The utility model includes a support seat, a roller, a fixed plate, a driving motor and a conveying pipe. The top of the support seat is inclined, and a roller is arranged above the support seat. A driving motor is fixed at one end of the roller, and a conveying pipe is fixed through the end of the roller above the driving motor. A plurality of nozzles are fixedly connected to the lower circumference of the conveying pipe in the roller. A feed port is provided at the upper part of the end of the roller away from the driving motor, and a fixed plate is arranged on the surface of the roller outside the feed port, and a plug is fixed on the side of the fixed plate close to the roller. The utility model solves the problem that in the process of pharmaceutical coating, direct spraying for coating is performed, and part of the atomized coating material is easily leaked into the air during feeding and discharging, which affects the safety of the production environment and easily causes waste of coating material solution by arranging a support seat, a roller, a fixed plate, a driving motor and a conveying pipe.

Description

Technical Field

[0001] The utility model belongs to the technical field related to medicine processing, in particular to a coating device for medicine tablets. Background Art

[0002] Tablets are solid preparations in the form of flakes or special-shaped flakes that are formed by uniformly mixing drugs and excipients and then pressing them. Tablets are mainly oral tablets, but there are also lozenges, sublingual tablets, oral patches, chewable tablets, dispersible tablets, effervescent tablets, vaginal tablets, rapid-release or sustained-release or controlled-release tablets and enteric-coated tablets. In order to cover up the taste of the drug itself, when coating the drug tablets, the equipment used in the pharmaceutical industry for coating drug tablets is mainly a wet coating device, which mixes the coating material with the solvent and then attaches it to the tablet surface by spraying or other methods through the coating device, and then the resulting tablets are dried and other treatments, so that a uniform and smooth coating can be formed on the tablet surface. However, it still has the following disadvantages in actual use:

[0003] 1. In the process of drug coating, the coating is directly carried out by spraying. During the spraying process, the corresponding drug tablets are directly coated. However, during the coating process, it is necessary to ensure that the interior is closed, and the coating is carried out after the closure, and then the tablets are taken out. When opening and closing the tablets for work, the coating device needs to be opened as a whole, which is easy to cause part of the atomized coating material to leak into the air, affecting the safety of the production environment;

[0004] 2. In the process of drug coating, direct spraying is used for coating. During coating, the solution of coating material is sprayed through a spray gun. During transportation, the sprayed coating material solution is atomized. Except for the part directly adhering to the drug, the rest is blown out before the next coating operation can be carried out, which easily causes waste of coating material solution. Utility Model Content

[0005] The utility model aims to provide a coating device for pharmaceutical tablets. By arranging a support seat, a roller, a fixing plate, a driving motor and a conveying pipe, the utility model solves the problem that in the process of pharmaceutical coating, direct spraying for coating easily causes part of the atomized coating material to leak into the air during feeding and discharging, thus affecting the safety of the production environment and easily causing waste of coating material solution.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a coating device for pharmaceutical tablets, comprising a support seat, a roller, a fixing plate, a driving motor and a conveying pipe, the top of the support seat is inclined, a roller is arranged above the support seat, a driving motor is fixed at one end of the roller, a conveying pipe is passed through and fixed to the end of the roller above the driving motor, a plurality of nozzles are fixedly connected to the peripheral side of the lower part of the conveying pipe in the roller, and the spacing between adjacent nozzles is equal, a feeding port is opened at the upper part of one end of the roller away from the driving motor, a fixing plate is arranged on the surface of the roller outside the feeding port, a plug is fixed on a side of the fixing plate close to the roller, and the plug is movably connected in the feeding port, when working, the roller is tilted and arranged on the ground through the support seat, the pharmaceutical tablets to be coated are accommodated through the roller, the plug for sealing the feeding port is connected to the roller through the fixing plate, the driving shaft is controlled to rotate by the driving motor, and a coating material solution is conveyed to the nozzle through the conveying pipe, so that the coating material solution is sprayed into the roller.

[0008] Furthermore, support plates are fixed at the two short sides of the top of the support seat, and a fixing ring is fixed on the top of the support plate. The two fixing rings are respectively fixed on the circumferential sides of the two ends of the roller. The support seat fixes the fixing rings through the support plates and is fixed to the roller through the fixing rings, so that the roller is tilted on the support seat.

[0009] Furthermore, a hopper is fixed on the end surface of the roller outside the fixed plate, and an output square tube is fixedly connected to the end of the roller below the driving motor. A latch is inserted at one end of the output square tube close to the roller. The roller collects the pharmaceutical tablets through the hopper and then transports them to the roller.

[0010] Furthermore, a connecting strip is fixed to the top of the fixing plate, and a side of the upper connecting strip close to the drum is fixed to the end of the drum, and a handle is fixed to the side of the fixing plate away from the blocking block. The fixing plate is connected to the end of the drum through the connecting strip, and by pulling the handle, the fixing plate drives the blocking block to be pulled out of the drum.

[0011] Furthermore, a driving shaft is fixed to the output end of the driving motor, and the driving shaft is movably connected to the end of the drum close to the driving motor, and the end of the driving shaft away from the driving motor is rotatably connected to the inner wall of the drum. The driving motor drives the driving shaft to rotate, so that the fixed frame is driven to rotate.

[0012] Furthermore, a fixed frame is fixed in a circular array around the driving shaft in the drum, and a number of internal connecting rods are fixed at equal intervals in each of the fixed frames. The end of the conveying pipe outside the drum is fixedly connected to an external joint. When the fixed frame and the connecting rods therein rotate, the pharmaceutical tablets in the drum are turned over so that they are evenly coated with the coating substance solution.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model solves the problem that in the process of drug coating, direct spraying for coating may easily cause part of the atomized coating material to leak into the air during feeding and discharging, thus affecting the safety of the production environment by arranging a support seat, a roller and a fixed plate. When feeding, the handle is pulled to pull out the plug on the fixed plate from the feeding port on the roller, so that the drug tablets poured into the hopper are transported to the roller through the feeding port. After feeding, the fixed plate is reset. When discharging, the latch in the output square tube is pulled out. After the latch is pulled out, the roller is tilted by the support seat. The coated drug tablets in the tilted roller are transported to the output square tube. After discharging, the latch is reset to complete the work. When working, the leakage of the atomized coating material contained in the roller can be effectively reduced.

[0015] 2. The utility model solves the problem of direct spraying for coating during drug coating, which easily causes waste of coating solution, by arranging a roller, a driving motor and a conveying pipe. After the equipment for conveying the coating solution is shut down, the nozzle stops working, and the driving motor continues to work to turn the tablets for about min, so that the surface of the tablets is evenly coated with the coating. The roller is set in a closed manner, so that less coating solution is used for coating the tablets during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the assembly structure of a coating device for a pharmaceutical tablet;

[0017] Figure 2 It is a three-dimensional diagram of the support seat structure;

[0018] Figure 3 It is a three-dimensional diagram of the drum structure;

[0019] Figure 4 Output the three-dimensional diagram of the square tube structure;

[0020] Figure 5 It is a three-dimensional diagram of the fixed plate structure;

[0021] Figure 6 It is a three-dimensional diagram of the drive motor structure;

[0022] Figure 7 This is a three-dimensional diagram of the conveying pipe structure.

[0023] Reference numerals:

[0024] 1. Support seat; 101. Support plate; 102. Fixed ring; 2. Roller; 201. Feed inlet; 202. Hopper; 203. Output square tube; 204. Latch; 3. Fixed plate; 301. Block; 302. Connecting strip; 303. Handle; 4. Drive motor; 401. Drive shaft; 402. Fixed frame; 403. Inner connecting rod; 5. Delivery pipe; 501. Nozzle; 502. External joint. DETAILED DESCRIPTION

[0025] 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 of 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. Specific embodiment 1

[0027] See also Figure 1-7 As shown, the utility model is a coating device for pharmaceutical tablets, comprising a support seat 1, a roller 2, a fixing plate 3, a driving motor 4 and a conveying pipe 5. The top of the support seat 1 is inclined, and the support seat 1 is arranged in an inclined manner, so that when working, the roller 2 supported on the support seat 1 is also arranged in an inclined manner. A roller 2 is arranged above the support seat 1, and the pharmaceutical tablets to be coated are accommodated by the roller 2 when working. A driving motor 4 is fixed to one end of the roller 2, and the driving motor 4 controls the rotation of a driving shaft 401. A conveying pipe 5 is fixed through the end of the roller 2 above the driving motor 4, and the conveying pipe 5 inputs the pharmaceutical coating material solution of the pipeline connected to the external joint 502 and conveys it to the nozzle 501. The lower peripheral side of the conveying pipe 5 in the roller 2 is fixedly connected with A dry nozzle 501 is provided, and the spacing between adjacent nozzles 501 is equal. The nozzle 501 sprays the coating solution so that the surface of the medicine is coated with the coating material solution, and a coating is formed on the surface of the medicine after the medicine is output and dried. A feed port 201 is provided on the upper part of the end of the drum 2 away from the driving motor 4. The drum 2 inputs the medicine tablets into it through the feed port 201. A fixed plate 3 is provided on the surface of the drum 2 outside the feed port 201. A plug 301 is fixed on the side of the fixed plate 3 close to the drum 2. The plug 301 is movably connected in the feed port 201. When the fixed plate 3 is working, the plug 301 on it is aligned with the feed port 201 on the drum 2. When the plug 301 is plugged into the feed port 201, the feed port 201 on the drum 2 is closed.

[0028] Among them Figure 1-3As shown, support plates 101 are fixed at the two short sides of the top of the support seat 1, and a fixing ring 102 is fixed on the top of the support plate 101. The two fixing rings 102 are respectively fixed on the circumference of the two ends of the drum 2. The support seat 1 fixes the fixing rings 102 through the support plate 101 fixed on the top, and is fixed to the circumference of the drum 2 through the fixing rings 102, so that the drum 2 is supported on the support seat 1.

[0029] Among them Figure 1 , 3 As shown in Figures 4, a hopper 202 is fixed on the end surface of the drum 2 outside the fixed plate 3, and an output square tube 203 is fixedly connected to the end of the drum 2 below the driving motor 4. A latch 204 is inserted into the end of the output square tube 203 close to the drum 2. The fixed plate 3 provides a position for the medicine tablets to be transported to the feed port 201 when input through the hopper 202 thereon, and the output square tube 203 and the drum 2 are separated by the latch 204 to prevent the tablets from entering the output square tube 203 during the coating process in the drum 2.

[0030] Among them Figure 1 , 2 As shown in Figure 5, a connecting strip 302 is fixed to the top of the fixed plate 3, and the upper side of the connecting strip 302 close to the drum 2 is fixed to the end of the drum 2. A handle 303 is fixed to the side of the fixed plate 3 away from the blocking block 301. The fixed plate 3 is connected to the drum 2 through the connecting strip 302. When the handle 303 is pulled, the blocking block 301 on the fixed plate 3 is pulled out from the feed port 201 on the drum 2, so that the pharmaceutical tablets poured into the hopper 202 are transported to the drum 2 through the feed port 201.

[0031] The operation process of this embodiment is as follows: when feeding, the handle 303 is pulled to pull the plug 301 on the fixed plate 3 out of the feed port 201 on the drum 2, so that the pharmaceutical tablets poured into the hopper 202 are transported to the drum 2 through the feed port 201. After the feeding is completed, the handle 303 is pushed to return the plug 301 to the feed port 201, and the inside of the drum 2 is sealed to carry out the coating operation. When discharging after the operation, the latch 204 in the output square tube 203 is pulled out. After the latch 204 is pulled out, the drum 2 is tilted through the support seat 1. The coated pharmaceutical tablets in the tilted drum 2 are transported to the output square tube 203, and then transported to the equipment for the next processing through the output square tube 203. After the coating of the pharmaceutical tablets is completed, the latch 204 is reset immediately to prepare for the next processing. Specific embodiment 2

[0033] Among them Figure 1 , 6As shown, on the basis of specific embodiment one, a driving shaft 401 is fixed to the output end of the driving motor 4, the driving shaft 401 is movably connected to the end of the drum 2 close to the driving motor 4, and the end of the driving shaft 401 away from the driving motor 4 is rotatably connected to the inner wall of the drum 2, and the driving motor 4 controls the rotation of the driving shaft 401.

[0034] Among them Figure 1 , 6 As shown in , 7, a fixed frame 402 is fixed in a circular array around the driving shaft 401 in the drum 2, and a plurality of inner connecting rods 403 are fixed at equal intervals in each fixed frame 402. The end of the conveying pipe 5 outside the drum 2 is fixedly connected with an external joint 502. When the driving shaft 401 rotates, it drives the fixed frame 402 to rotate. When the fixed frame 402 rotates, it drives the inner connecting rod 403 to rotate, so that the medicine tablets in the drum 2 are turned over.

[0035] The operation process of this embodiment is as follows: before work, first install the equipment pipeline joint for externally conveying the coating solution and the external joint 502. When the pharmaceutical tablets enter the drum 2, start the drive motor 4 to control the drive shaft 401 to rotate. While the drive shaft 401 rotates, the equipment for externally conveying the coating solution is started to convey the coating solution to the conveying pipe 5. The conveying pipe 5 evenly atomizes the coating solution and sprays it into the drum 2 through the nozzle 501. Then, the drive motor 4 drives the drive shaft 401 to rotate, driving the fixed frame 402 and the inner connecting rod 403 to rotate, turning the pharmaceutical tablets in the drum 2, so that the surface of the tablets is evenly contacted with the atomized coating solution in the drum 2. After the equipment for conveying the coating solution is stopped, the nozzle 501 stops working, and the drive motor 4 continues to work to turn the tablets for about 5 minutes, so that the surface of the tablets is evenly coated with the coating. The drum 2 is closed, and less coating solution is used for coating the tablets during use.

[0036] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A coating device for pharmaceutical tablets, comprising a support base (1), a roller (2), a fixing plate (3), a driving motor (4) and a conveying pipe (5), characterized in that: The top of the support seat (1) is inclined, and a roller (2) is arranged above the support seat (1). A driving motor (4) is fixed to one end of the roller (2), and a conveying pipe (5) is fixed through the end of the roller (2) above the driving motor (4). A plurality of nozzles (501) are fixedly connected to the lower circumference of the conveying pipe (5) in the roller (2), and the spacing between adjacent nozzles (501) is equal. A feed port (201) is opened at the upper part of one end of the roller (2) away from the driving motor (4), and a fixing plate (3) is arranged on the surface of the roller (2) outside the feed port (201), and a plug (301) is fixed to a side of the fixing plate (3) close to the roller (2), and the plug (301) is movably connected in the feed port (201).

2. A coating device for pharmaceutical tablets according to claim 1, characterized in that: A support plate (101) is fixed to both short sides of the top of the support seat (1), a fixing ring (102) is fixed to the top of the support plate (101), and the two fixing rings (102) are respectively fixed to the circumference of the two ends of the drum (2).

3. A coating device for pharmaceutical tablets according to claim 1, characterized in that: A hopper (202) is fixed on the end surface of the roller (2) outside the fixed plate (3), and an output square tube (203) is fixedly connected to the end of the roller (2) below the drive motor (4), and a latch (204) is inserted at one end of the output square tube (203) close to the roller (2).

4. A coating device for pharmaceutical tablets according to claim 1, characterized in that: A connecting strip (302) is fixed to the top of the fixing plate (3), a side of the upper part of the connecting strip (302) close to the roller (2) is fixed to the end of the roller (2), and a handle (303) is fixed to the side of the fixing plate (3) away from the plug (301).

5. A coating device for pharmaceutical tablets according to claim 1, characterized in that: A driving shaft (401) is fixed to the output end of the driving motor (4), and the driving shaft (401) is movably connected to an end of the drum (2) close to the driving motor (4), and an end of the driving shaft (401) away from the driving motor (4) is rotatably connected to the inner wall of the drum (2).

6. A coating device for pharmaceutical tablets according to claim 5, characterized in that: A fixed frame (402) is fixed in a circular array around the driving shaft (401) in the roller (2), and a plurality of inner connecting rods (403) are fixed at equal intervals in each of the fixed frames (402). The end of the conveying pipe (5) outside the roller (2) is fixedly connected to an external joint (502).

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