Effervescent tablet wet type granulator with spraying and feeding mechanism

Abstract

The utility model discloses a wet type granulator with a spraying and feeding mechanism for effervescent tablets, which relates to the technical field of granulation equipment and comprises a bottom bearing frame, the right side of the top of the bottom bearing frame is fixedly connected with a water aqua barrel, and the left side of the top of the water aqua barrel is fixedly connected with a granulation pot. The top end of the bottom bearing frame is provided with a spraying feeding assembly capable of preventing powder from adhering to the spraying opening. According to the effervescent tablet wet type granulator with the spraying and feeding mechanism, by arranging an air pump, a nozzle connector, an atomizing nozzle and a nozzle outer protective cover, when the effervescent tablet wet type granulator is used, the air pump is started and continuously pumps air, compressed air filtered by a compressed air filter enters a water agent barrel, the atomizing nozzle at the bottom of a spraying electromagnetic valve sprays fine and dense water mist downwards in the inclined direction, and the water mist is fed into the water agent barrel; the nozzle outer protective cover can stop striking of powder, the probability that the atomizing nozzle discharges aleurone is reduced, the function of preventing the nozzle from being blocked is achieved, and the problem that the device does not have the function of preventing the nozzle from being blocked is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of granulation equipment, in particular to a wet granulator for effervescent tablets with a spray feeding mechanism. Background Art

[0002] Effervescent tablets are a relatively new drug dosage form in my country. Unlike ordinary tablets, effervescent tablets use the reaction of organic acids and basic carbonate (bicarbonate) salts as effervescent disintegrants. When placed in water, an effervescent reaction occurs immediately, generating and releasing a large amount of carbon dioxide gas, which is like boiling, hence the name effervescent tablets.

[0003] At present, there are two types of effervescent tablets developed in China: external use and oral use. The two are the same in specifications and are larger in size. In addition to these large-size effervescent tablets, micro-effervescent tablets with a specification of 4mm have been launched, which are suitable for a wider range of people. Micro-effervescent tablets are mostly processed by wet granulation. By quickly mixing and stirring the powder and the aqueous solution, small particles of uniform size can be formed. The wet granulators currently on the market are based on this principle. In actual use, there are some functional deficiencies and there is room for improvement. For example, the spray nozzles of the current wet granulators are all vertically downward, and during the stirring process, the powder splashing up and down is easy to hit the spray nozzle and form adhesion on the nozzle. As the use time increases, a paste-like blockage will be formed at the spray nozzle, affecting the normal spray, and it does not have the function of preventing nozzle blockage.

[0004] Now, a novel wet granulator for effervescent tablets with a spray feeding mechanism is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a wet granulator for effervescent tablets with a spray feeding mechanism, so as to solve the problem of the lack of a function of preventing nozzle blockage in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a wet granulator for effervescent tablets with a spray feeding mechanism, comprising a bottom supporting frame, a water barrel fixedly connected to the right side of the top of the bottom supporting frame, a granulating pot fixedly connected to the left side of the top of the water barrel, a sealing pot cover fixedly connected to the top of the granulating pot, a powder inlet welded to the left side of the top of the sealing pot cover, a vacuum suction port fixedly connected to the right side of the top of the sealing pot cover, a driving motor installed at the middle position of the top of the sealing pot cover, an output end of the driving motor passes through the top of the sealing pot cover and is fixedly connected to a tool shaft, a stirring knife fixedly connected to the bottom end of the tool shaft, a discharge valve welded to the left side of the granulating pot, and a spray feeding assembly that can prevent powder from sticking to the spray port is provided at the top of the bottom supporting frame.

[0007] The spray feeding assembly includes an air pump, which is installed in the middle position of the right side of the top of the bottom supporting frame. A compressed air filter is fixedly connected to the right side of the water agent barrel. A feeding solenoid valve is provided at the middle position of the top of the water agent barrel. A pressure relief solenoid valve is provided on the left side of the top of the water agent barrel. A spray solenoid valve is fixedly connected to the right side of the top of the inner top of the sealed pot cover. An infusion tube is fixedly connected between the bottom of the left side of the water agent barrel and the spray solenoid valve. The bottom end of the spray solenoid valve is threadedly connected to a nozzle connector. An atomizing nozzle is fixedly connected at an angle to the middle position of the bottom end of the nozzle connector. The outer ring of the bottom end of the nozzle connector is obliquely welded with a nozzle outer guard.

[0008] Preferably, the bottom end of the compressed air filter is connected to the top end of the air pump, the top end of the compressed air filter is connected to the top end of the liquid medicine barrel, and the interiors of the liquid medicine barrel, the air pump, and the compressed air filter are connected.

[0009] Preferably, the top end of the ejection solenoid valve passes through the top end of the sealing pot cover and extends to the outside, and the interior of the liquid medicine barrel, the infusion tube, and the ejection solenoid valve are connected.

[0010] Preferably, the bottom end of the nozzle outer shield is lower than the bottom end of the atomizing nozzle, and the opening of the nozzle outer shield faces the same direction as the rotation direction of the stirring blade.

[0011] Preferably, a servo motor is installed on the right side of the granulation pot, the output end of the servo motor is horizontally fixedly connected to the blade shaft, the outer side of the blade shaft is sleeved with multiple groups of circular cutters, and a bearing fixing frame is vertically welded to the top of the inside of the sealed pot cover, and a dustproof bearing is installed at the bottom of the right side of the bearing fixing frame.

[0012] Preferably, the left side of the blade shaft is movably connected to the dustproof bearing, the horizontal center lines of the blade shaft, the circular cutter and the dustproof bearing coincide with each other, and the bottom end of the circular cutter is higher than the top end of the mixing blade.

[0013] Preferably, the top of the discharge valve is fixedly connected to a fixed cylinder, a micro motor is installed on the left side of the fixed cylinder, the output end of the micro motor is laterally movably connected to a soft shaft, and the end of the soft shaft is glued to a rubber ball.

[0014] Preferably, the soft shaft and the rubber ball are made of the same material, and are elastic.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the wet granulator for effervescent tablets with a spray feeding mechanism not only realizes the function of preventing nozzle blockage, but also realizes the function of preventing cutter deviation and the function of avoiding clogging of the discharge position;

[0016] (1) The air pump, compressed air filter, feeding solenoid valve, pressure relief solenoid valve, infusion tube, ejection solenoid valve, nozzle connector, atomizing nozzle and nozzle outer shield are provided. When in use, the vacuum generator is connected to the vacuum suction port, and the external powder is sucked into the powder inlet through the conduit. The powder falls into the granulating pot, and the driving motor drives the stirring blade to stir quickly through the tool shaft, so that the powder is constantly turned and evenly mixed. At this time, the air pump starts and continues to pump air. The compressed air filtered by the compressed air filter enters the water barrel, and the pressure inside the water barrel increases. The internal aqueous solution is pressed into the spray solenoid valve through the infusion tube. The atomizing nozzle at the bottom of the spray solenoid valve sprays fine water mist obliquely downward, so that it combines with the rapidly surging powder to form small spherical particles. During the powder tumbling process, the outer shield of the nozzle can block the impact of the powder, preventing it from directly contacting the atomizing nozzle, reducing the chance of the atomizing nozzle producing paste powder. The nozzle connector facilitates the disassembly and assembly of the atomizing nozzle. When the aqueous solution needs to be replenished later, the pressure relief solenoid valve is opened first to relieve the pressure. At the same time, the replenished aqueous solution enters from the feeding solenoid valve, realizing the function of preventing the nozzle from being blocked.

[0017] (2) By providing a servo motor, a blade shaft, a circular cutter, a bearing fixing frame and a dustproof bearing, when in use, while the powder is being stirred and sprayed, the servo motor drives the circular cutter to rotate at high speed through the blade shaft, thereby breaking up the powder mass that jumps up and down and preventing it from forming oversized lumps. The support member formed by the bearing fixing frame and the dustproof bearing can support the blade shaft, preventing it from warping and deformation during long-term rotation and then swinging, causing the circular cutter and the stirring blade to collide, thereby achieving the function of preventing the cutter from deflecting;

[0018] (3) By arranging a fixed cylinder, a micro motor, a flexible shaft and a rubber ball, when in use, as the powder and the spray are fully combined to form small particles, the discharge valve opens, and under the uniform stirring of the stirring blade, the small particles are discharged along the discharge valve. At the same time of discharging, the micro motor on the fixed cylinder is started synchronously, and the micro motor drives the flexible shaft to rotate at high speed. The rubber ball at the end of the flexible shaft hits the fixed cylinder at high speed, and the high-frequency vibration generated by the hitting is transmitted to the discharge valve, which can prevent the powder particles inside the discharge valve from clogging and accumulating, thereby realizing the function of avoiding clogging of the discharge position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural diagram of the utility model;

[0020] Figure 2 This is a front view structural diagram of the sealed pot cover of the present invention;

[0021] Figure 3 This is an enlarged side cross-sectional structural diagram of the nozzle connector of the present invention;

[0022] Figure 4This is an enlarged side view of the blade shaft of the present invention;

[0023] Figure 5 This is a schematic diagram of an enlarged front cross-sectional structure of the discharge valve of the present invention.

[0024] In the figure: 1. Bottom supporting frame; 2. Liquid agent barrel; 3. Granulating pot; 4. Sealing pot cover; 5. Powder inlet; 6. Vacuum suction port; 7. Driving motor; 8. Cutter shaft; 9. Mixing knife; 10. Air pump; 11. Compressed air filter; 12. Feeding solenoid valve; 13. Pressure relief solenoid valve; 14. Infusion tube; 15. Spraying solenoid valve; 16. Nozzle connector; 17. Atomizing nozzle; 18. Nozzle outer shield; 19. Servo motor; 20. Blade shaft; 21. Circular cutter; 22. Bearing fixing frame; 23. Dustproof bearing; 24. Discharge valve; 25. Fixing cylinder; 26. Micro motor; 27. Flexible shaft; 28. Rubber ball. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figure 1-5 , a wet granulator for effervescent tablets with a spray feeding mechanism, comprising a bottom supporting frame 1, a liquid agent barrel 2 is fixedly connected to the right side of the top of the bottom supporting frame 1, a granulating pot 3 is fixedly connected to the left side of the top of the liquid agent barrel 2, a sealing pot cover 4 is fixedly connected to the top of the granulating pot 3, a powder inlet 5 is welded to the left side of the top of the sealing pot cover 4, a vacuum suction port 6 is fixedly connected to the right side of the top of the sealing pot cover 4, a driving motor 7 is installed at the middle position of the top of the sealing pot cover 4, the output end of the driving motor 7 passes through the top of the sealing pot cover 4 and is fixedly connected to a tool shaft 8, the bottom end of the tool shaft 8 is fixedly connected to a stirring blade 9, a discharge valve 24 is welded to the left side of the granulating pot 3, and a spray feeding component is provided on the top of the bottom supporting frame 1 to prevent the spray port from sticking powder;

[0027] See also Figure 1-5, a wet granulator for effervescent tablets with a spray feeding mechanism also includes a spray feeding assembly, which includes an air pump 10, which is installed in the middle position of the top right side of the bottom carrier frame 1, a compressed air filter 11 is fixedly connected to the right side of the liquid barrel 2, a feeding solenoid valve 12 is provided at the middle position of the top of the liquid barrel 2, a pressure relief solenoid valve 13 is provided on the left side of the top of the liquid barrel 2, a spray solenoid valve 15 is fixedly connected to the right side of the top of the sealing pot cover 4, an infusion tube 14 is fixedly connected between the bottom of the left side of the liquid barrel 2 and the spray solenoid valve 15, the bottom end of the spray solenoid valve 15 is threadedly connected to a nozzle connector 16, an atomizing nozzle 17 is fixedly connected obliquely to the middle position of the bottom end of the nozzle connector 16, and a nozzle outer shield 18 is obliquely welded to the outer ring of the bottom end of the nozzle connector 16;

[0028] The bottom end of the compressed air filter 11 is connected to the top end of the air pump 10, and the top end of the compressed air filter 11 is connected to the top end of the liquid barrel 2. The interiors of the liquid barrel 2, the air pump 10, and the compressed air filter 11 are connected. The top end of the ejection solenoid valve 15 passes through the top end of the sealing pot cover 4 and extends to the outside. The interiors of the liquid barrel 2, the infusion tube 14, and the ejection solenoid valve 15 are connected. The bottom end of the nozzle outer shield 18 is lower than the bottom end of the atomizing nozzle 17. The opening direction of the nozzle outer shield 18 is the same as the rotation direction of the mixing blade 9, which can prevent the nozzle from being blocked by paste powder while spraying.

[0029] Specifically, if Figure 1 、 Figure 2 and Figure 3 As shown, the air pump 10 starts and continues to pump air, and the compressed air filtered by the compressed air filter 11 enters the liquid agent barrel 2. The pressure inside the liquid agent barrel 2 increases, and the liquid agent inside is pressed into the ejection solenoid valve 15 through the infusion tube 14. The atomizing nozzle 17 at the bottom of the ejection solenoid valve 15 sprays fine water mist downward obliquely, so that it combines with the rapidly surging powder to form small spherical particles. When the powder is swirling, the nozzle outer shield 18 can block the impact of the powder to prevent it from directly contacting the atomizing nozzle 17, thereby reducing the probability of the atomizing nozzle 17 producing paste powder.

[0030] Embodiment 2: A servo motor 19 is installed on the right side of the granulating pot 3, and the output end of the servo motor 19 is horizontally fixedly connected to a blade shaft 20, and multiple groups of circular cutters 21 are sleeved on the outside of the blade shaft 20. A bearing fixing frame 22 is vertically welded to the top of the inner side of the sealed pot cover 4, and a dustproof bearing 23 is installed on the bottom of the right side of the bearing fixing frame 22. The left side of the blade shaft 20 is movably connected to the dustproof bearing 23. The horizontal center lines of the blade shaft 20, the circular cutter 21, and the dustproof bearing 23 coincide with each other. The bottom end of the circular cutter 21 is higher than the top end of the stirring blade 9, which can support the shaft and reduce the probability of its deformation and warping;

[0031] Specifically, if Figure 1 、 Figure 2 and Figure 4 As shown, the servo motor 19 drives the circular cutter 21 to perform high-speed rotary cutting through the blade shaft 20, thereby chopping the dough that jumps up and down to prevent it from forming clumps of too large size. The support composed of the bearing fixing frame 22 and the dustproof bearing 23 can support the blade shaft 20 to prevent it from warping and deforming during long-term rotation and then swinging, causing the circular cutter 21 and the mixing blade 9 to collide.

[0032] Example 3: The top of the discharge valve 24 is fixedly connected to a fixed cylinder 25, and a micro motor 26 is installed on the left side of the fixed cylinder 25. The output end of the micro motor 26 is laterally movably connected to a flexible shaft 27, and the end of the flexible shaft 27 is glued to a rubber ball 28. The flexible shaft 27 and the rubber ball 28 are made of the same material and are elastic to prevent the valve from being blocked.

[0033] Specifically, if Figure 1 and Figure 5 As shown, the micro motor 26 on the fixed cylinder 25 is started synchronously, and the micro motor 26 drives the flexible shaft 27 to rotate at high speed. The rubber ball 28 at the end of the flexible shaft 27 hits the fixed cylinder 25 at high speed. The high-frequency vibration generated by the hitting is transmitted to the discharge valve 24, which can prevent the powder particles inside the discharge valve 24 from clogging and accumulating.

[0034] Working principle: When the utility model is in use, first, connect the vacuum generator to the vacuum suction port 6, suck the external powder into the powder inlet 5 through the conduit, and the powder falls into the granulation pot 3. The driving motor 7 drives the stirring blade 9 through the tool shaft 8 to stir quickly, so that the powder is constantly turned and evenly mixed. At this time, the air pump 10 starts and continuously pumps air. The compressed air filtered by the compressed air filter 11 enters the water barrel 2. The pressure inside the water barrel 2 increases, and the water inside is pressed into the ejection solenoid valve 15 through the infusion tube 14. In the process, the atomizing nozzle 17 at the bottom of the spraying solenoid valve 15 sprays a fine water mist downwardly and obliquely, which combines with the rapidly surging powder to form small spherical particles. During the turbulence of the powder, the nozzle outer shield 18 can block the impact of the powder, preventing it from directly contacting the atomizing nozzle 17 and reducing the chance of the atomizing nozzle 17 producing a paste powder. The nozzle connector 16 facilitates the disassembly and assembly of the atomizing nozzle 17. When the water solution needs to be replenished later, the pressure relief solenoid valve 13 is opened to relieve the pressure, and the replenished water solution enters through the feeding solenoid valve 12. While the powder is being stirred and sprayed, the servo motor 19 drives the circular cutter 21 through the blade shaft 20 to perform high-speed rotary cutting, chopping the powder mass that jumps up and down and preventing it from forming oversized clumps. The support composed of the bearing fixing frame 22 and the dustproof bearing 23 can support the blade shaft 20 to prevent it from warping and swinging during long-term rotation, causing the circular cutter 21 to collide with the mixing blade 9. As the powder and spray are fully combined to form small particles, the discharge valve 24 opens. Under the uniform stirring of the mixing blade 9, the small particles are discharged along the discharge valve 24. At the same time of discharging, the micro motor 26 on the fixed cylinder 25 is synchronously started. The micro motor 26 drives the flexible shaft 27 to rotate at high speed. The rubber ball 28 at the end of the flexible shaft 27 hits the fixed cylinder 25 at high speed. The high-frequency vibration generated by the hitting is transmitted to the discharge valve 24, which can prevent the powder particles inside the discharge valve 24 from clogging and accumulating.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A wet granulator for effervescent tablets with a spray feeding mechanism, comprising a bottom carrier (1), characterized in that: The right side of the top of the bottom support frame (1) is fixedly connected to a water-dose barrel (2), the left side of the top of the water-dose barrel (2) is fixedly connected to a granulating pot (3), the top of the granulating pot (3) is fixedly connected to a sealing pot cover (4), the left side of the top of the sealing pot cover (4) is welded with a powder inlet (5), the right side of the top of the sealing pot cover (4) is fixedly connected to a vacuum suction port (6), a driving motor (7) is installed at the middle position of the top of the sealing pot cover (4), the output end of the driving motor (7) passes through the top of the sealing pot cover (4) and is fixedly connected to a tool shaft (8), the bottom end of the tool shaft (8) is fixedly connected to a stirring knife (9), a discharge valve (24) is welded to the left side of the granulating pot (3), and the top of the bottom support frame (1) is provided with a spray feeding assembly that can prevent the spray port from sticking powder; The spray feeding assembly includes an air pump (10), which is installed at the middle position of the right side of the top of the bottom supporting frame (1); a compressed air filter (11) is fixedly connected to the right side of the water barrel (2); a feeding solenoid valve (12) is provided at the middle position of the top of the water barrel (2); a pressure relief solenoid valve (13) is provided on the left side of the top of the water barrel (2); a spray solenoid valve (15) is fixedly connected to the right side of the top of the sealing pot cover (4); a liquid infusion tube (14) is fixedly connected between the bottom of the left side of the water barrel (2) and the spray solenoid valve (15); the bottom end of the spray solenoid valve (15) is threadedly connected to a nozzle connector (16); an atomizing nozzle (17) is fixedly connected obliquely to the middle position of the bottom end of the nozzle connector (16); and a nozzle outer shield (18) is obliquely welded to the outer ring of the bottom end of the nozzle connector (16).

2. A wet granulator for effervescent tablets with a spray feeding mechanism according to claim 1, characterized in that: The bottom end of the compressed air filter (11) is connected to the top end of the air pump (10), the top end of the compressed air filter (11) is connected to the top end of the liquid medicine barrel (2), and the interiors of the liquid medicine barrel (2), the air pump (10), and the compressed air filter (11) are connected.

3. The wet granulator for effervescent tablets with a spray feeding mechanism according to claim 1, wherein: The top end of the ejection electromagnetic valve (15) penetrates the top end of the sealed pot cover (4) and extends to the outside, and the insides of the liquid medicine barrel (2), the infusion tube (14), and the ejection electromagnetic valve (15) are connected.

4. The wet granulator for effervescent tablets with a spray feeding mechanism according to claim 1, wherein: The bottom end of the nozzle outer shield (18) is lower than the bottom end of the atomizing nozzle (17), and the opening direction of the nozzle outer shield (18) is the same as the rotation direction of the stirring blade (9).

5. The wet granulator for effervescent tablets with a spray feeding mechanism according to claim 1, characterized in that: A servo motor (19) is installed on the right side of the granulating pot (3), and the output end of the servo motor (19) is fixedly connected to a blade shaft (20) in a transverse direction. The outer portion of the blade shaft (20) is sleeved with multiple groups of circular cutters (21). A bearing fixing frame (22) is vertically welded to the top end of the interior of the sealing pot cover (4), and a dustproof bearing (23) is installed at the bottom of the right side of the bearing fixing frame (22).

6. The wet granulator for effervescent tablets with a spray feeding mechanism according to claim 5, characterized in that: The left side of the blade shaft (20) is movably connected to the dustproof bearing (23), the horizontal center lines of the blade shaft (20), the circular cutter (21) and the dustproof bearing (23) coincide with each other, and the bottom end of the circular cutter (21) is higher than the top end of the stirring blade (9).

7. The wet granulator for effervescent tablets with a spray feeding mechanism according to claim 1, characterized in that: The top end of the discharge valve (24) is fixedly connected to a fixed cylinder (25), a micro motor (26) is installed on the left side of the fixed cylinder (25), the output end of the micro motor (26) is laterally movably connected to a soft shaft (27), and the end of the soft shaft (27) is glued to a rubber ball (28).

8. The wet granulator for effervescent tablets with a spray feeding mechanism according to claim 7, characterized in that: The soft shaft (27) and the rubber ball (28) are made of the same material, and the soft shaft (27) and the rubber ball (28) are elastic.

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