KR200293411Y1 - Apparatus for spray coating of a tablet - Google Patents

Abstract

The present invention relates to a pill coating device, the present invention is a flow meter between the liquid pressure regulator and the manifold, measuring the flow rate of the coating liquid and applying the measured value to the control unit, and the measured value measured by the flow meter According to the characteristics of the air-operated liquid pressure regulator for adjusting the supply amount of the coating liquid supplied to the spray gun in a manner to adjust the supply amount of air. Therefore, the amount of coating liquid supplied to the spray gun can be automatically and precisely controlled, so that the coating liquid can be uniformly coated on the surface of the pill, and the loss of the coating liquid can be reduced, and even an unskilled person can easily use it. to provide.

Description

Pill Spray Coating Equipment {APPARATUS FOR SPRAY COATING OF A TABLET}

The present invention relates to a pill spray coating apparatus, and more particularly, to a pill spray coating apparatus to precisely control the spray amount of the coating liquid, thereby uniformly coating the coating liquid on the surface of the pill and reducing the coating liquid. .

In general, the spray coating device of the tablet (TABLET) is a device for forming a coating layer on the surface of the tablet, currently in the domestic pharmaceutical industry, the airless spray (AIRLESS SPRAY) coating device and HVLP (HIGH VOLUME LOSS PRESSURE) spray coating device In some cases, the imported automatic coating device can be seen that the air spray (AIR SPRAY) method and the airless spray (AIRLESS SPRAY) method is applied.

AIR SPRAY has the advantage of very beautiful coating surface, but because it is sprayed over a wide range of spray areas, the loss of coating liquid is very high, and the transfer efficiency of the coating liquid to the surface of the pill is very low. This has a high disadvantage.

In addition, the airless spray (AIRLESS SPRAY) method has a high transfer efficiency of the coating liquid has a low loss of the coating liquid and a low risk of fire, but the coating surface is very nonuniform has to be accompanied by a separate surface treatment process.

In addition, the HVLP (HIGH VOLUME LOSS PRESSURE) spray method is a spray method that compensates for the shortcomings of the air spray method, and is widely used because the coating surface is very beautiful and the loss of the coating liquid is low.

FIG. 1 schematically shows an example of a conventional pill spray coating apparatus, which includes a compressor for generating pneumatic pressure and a plurality of coating liquid tanks 2 and 3 containing a coating liquid.

The compressor 1 and the plurality of coating liquid tanks 2 and 3 are connected to the pump 5 for pumping the coating liquid through the controller 4 in a pneumatic circuit, and are pumped by the pump 5. Accumulator (ACCUMULATOR: 6) that primarily controls the pulsation of the coating liquid, and surge suppressor (SURGE SUPPRESSOR: 7) that controls the pulsation of the coating liquid primarily controlled pulsation through the accumulator (6) ).

And a filter (8) for removing the foreign matter contained in the coating liquid passed through the surge suppressor (7), a liquid pressure regulator (FLUID PRESSURE REGULATOR: 9) for adjusting the pressure of the coating liquid passed through the filter (8) and And a plurality of spray guns (SPRAY GUN: 11, 12) for selectively supplying the coating liquid passed through the liquid pressure regulator 9 through a manifold (MANIFOLD: 10) and spraying it onto the surface of the pill.

The conventional pill spray coating apparatus configured as described above operates as follows.

First, after selecting one coating liquid tank 2 of the plurality of coating liquid tanks 2 and 3 through the control unit 4, and then driving the pump 5, the coating liquid contained in the selected coating liquid tank (2) The pumped liquid is pumped through this pneumatic line, and the conveyed coating liquid is primarily controlled by pulsation through the accumulator 6, and the coating liquid whose primary pulsation is controlled is controlled secondly by the surge suppressor 7. do.

Then, the coating liquid whose pulsation is controlled through the surge suppressor 7 passes through the filter 8, and the foreign matter is removed, and the coating liquid from which the foreign matter is removed is manifold in a state where the pressure is controlled through the liquid pressure regulator 9. The spray gun 11 is sprayed through the spray gun 11 selected from the plurality of spray guns 11 and 12 via the sprayer 10 and coated in a spray manner on the surface of the pill.

And while the operator visually confirms that the coating liquid is coated on the surface of the pill, the amount of the coating liquid to be sprayed is adjusted by manually operating the liquid pressure regulator 9.

Therefore, the conventional pill spray coating apparatus configured as described above has the following problems.

First, while the operator checks the state of the coating liquid is coated on the surface of the tablet with the naked eye, it is necessary to manually adjust the liquid pressure regulator 9 to adjust the supply amount of the coating liquid to be sprayed, and therefore experienced personnel are required. There was a rising issue. In other words, inexperienced inexperienced users have difficulty in using the device.

In addition, since the coating liquid is difficult to quantitatively control, there is a problem in that the coating liquid is lost.

The present invention is to solve the conventional problems as described above, by precisely controlling the spray amount of the coating liquid, to uniformly coat the coating liquid on the surface of the tablet and at the same time provide a coating spray coating apparatus that can reduce the loss of the coating liquid Its purpose is to.

In order to achieve the object as described above, the present invention, a compressor for generating a pneumatic, a plurality of coating liquid tank for receiving a coating liquid, and the compressor and a plurality of coating liquid tank and connected to the pneumatic circuit through a control unit to the coating liquid A pump for pumping, an accumulator and surge suppressor for sequentially controlling the pulsation of the coating liquid pumped by the pump, a filter for removing foreign substances contained in the coating liquid passing through the surge suppressor, and a coating liquid passing through the filter A pill spray coating apparatus, comprising: a liquid pressure regulator for adjusting a pressure of a liquid; and a plurality of spray guns for selectively supplying a coating liquid passing through the liquid pressure regulator through a manifold to spray the surface of a pill. It is installed between the pressure regulator and the manifold and measures the flow rate of the coating liquid And an air operated liquid pressure regulator for adjusting the supply amount of the coating liquid supplied to the spray gun in a manner of adjusting the supply amount of air according to the flow meter applied to the control unit and the measured value measured by the flow meter. It is characterized by providing a pill spray coating apparatus.

According to the present invention, since the amount of the coating liquid supplied to the spray gun can be precisely and automatically controlled, the coating liquid can be uniformly coated on the surface of the pill, and at the same time, the loss of the coating liquid can be reduced. This gives the effect as possible.

1 is a schematic view showing a conventional pill spray coating apparatus.

Figure 2 is a schematic view showing a pill spray coating apparatus according to the present invention.

<Description of the symbols for the main parts of the drawings>

21: Compressor

22,23: coating liquid tank

24: control unit

25: pump

26: accumulator

27: SURGE SUPPRESSOR

28: filter

29: FLUID PRESSURE REGULATOR

30: MANIFOLD

31,32: SPRAY GUN

34: flow meter

36: AIR OPERATED PRESSURE REGULATOR

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic diagram showing a pill spray coating apparatus according to the present invention.

As shown in FIG. 2, the pill spray coating apparatus according to the present invention includes a compressor 21 for generating pneumatic pressure, a plurality of coating liquid tanks 22 and 23 containing a coating liquid, and the compressor 21 as in the related art. And a pump 25 connected to the pneumatic circuit through the plurality of coating liquid tanks 22 and 23 and the control unit 24 to pump the coating liquid.

And the accumulator 26 and the surge suppressor 27 for sequentially controlling the pulsation of the coating liquid pumped by the pump 25 and the filter for removing the foreign matter contained in the coating liquid passed through the surge suppressor 27 ( 28), the liquid pressure regulator 29 for adjusting the pressure of the coating liquid passed through the filter, and the coating liquid passed through the liquid pressure regulator 29 is supplied through the manifold 30 to spray the surface of the pill. A plurality of spray guns 31 and 32 are provided.

And according to the characteristics of the present invention between the liquid pressure regulator 29) and the manifold 30, the flow meter for measuring the flow rate of the coating liquid and applying the measured value to the control unit 24 (FLOW METOR: 34) And adjusting the supply amount of the coating liquid supplied to the spray guns 31 and 32 in a manner of adjusting the size of the conduit by adjusting the supply amount of air according to the measured value measured by the flow meter 34. An actuated liquid pressure regulator (AIR OPERATED PRESSURE REGULATOR: 36) is provided.

Pill spray coating apparatus according to the present invention configured as described above is to coat the coating liquid on the surface of the pill as follows.

First, after selecting one coating liquid tank 22 of the plurality of coating liquid tanks 22 and 23 through the control unit 24, and then driving the pump 25, the coating liquid contained in the selected coating liquid tank 22 The pumped liquid is pumped and transferred through this pneumatic line, and the pulsation is controlled primarily through the accumulator 26, and the pulsation controlled coating is primarily controlled through the surge suppressor 27. do.

In addition, the coating liquid whose pulsation is controlled through the surge suppressor 27 passes through the filter 28 to remove foreign substances, and the coating liquid from which the foreign substances have been removed is manifold in a state where the pressure is controlled through the liquid pressure regulator 29. It is sprayed through the spray gun 31 of the selected one of the plurality of spray guns 31 and 32 via the 30 to be coated in a spray manner on the surface of the pill.

At this time, according to the characteristics of the present invention, the flow rate of the coating liquid, the pressure is adjusted through the liquid pressure regulator 29 is measured through the flow meter 34, the measured value measured by the flow meter 34 is a control unit ( 24), the control unit 24 compares the preset reference value and the measured value measured by the flow meter 34 and adjusts the amount of air supplied to the air operated liquid pressure regulator 36 according to the difference value. By adjusting the size of the conduit, it is possible to accurately adjust the amount of the coating liquid supplied to the spray gun (31).

Therefore, as compared to the method of manually controlling the spray amount of the coating liquid by the naked eye experienced by the prior art, it is possible to maintain a uniform quality, to reduce the loss of the coating liquid, even non-skilled person can be easily used.

As described above, according to the present invention pill spray coating apparatus, the amount of coating liquid supplied to the spray gun can be automatically and precisely controlled, thereby uniformly coating the coating liquid on the surface of the pill and at the same time reducing the loss of the coating liquid. In addition, even non-skilled people can easily use the effect.

Claims (1)

A compressor for generating pneumatic pressure, a plurality of coating liquid tanks containing the coating liquid, a pump connected to the pneumatic circuit through the compressor and the plurality of coating liquid tanks and a control unit to pump the coating liquid, and a coating liquid pumped by the pump. An accumulator and surge suppressor for sequentially controlling pulsation, a filter for removing foreign substances contained in the coating liquid passing through the surge suppressor, a liquid pressure regulator for adjusting the pressure of the coating liquid passing through the filter, and the liquid pressure A pill spray coating apparatus comprising a plurality of spray guns for selectively supplying a coating liquid passing through a regulator through a manifold and spraying them onto a pill surface, It is installed between the liquid pressure regulator and the manifold, the flow rate meter to measure the flow rate of the coating liquid and apply the measured value to the control unit, and to adjust the supply amount of air in accordance with the measured value measured by the flow meter Pill spray coating apparatus comprising an air-operated liquid pressure regulator for adjusting the supply amount of the coating liquid supplied to the spray gun.