A device for coloring pellets

Abstract

The utility model discloses a kind of micro-pellet coloring devices, relate to micro-pellet preparation technical field, including base and bucket cover, the top of base is fixed with coloring barrel, the top method of coloring barrel is connected with bucket cover, the top of bucket cover is installed with feed hopper, the top of base is placed with pigment tank, the top of pigment tank is communicated with feeding port.This micro-pellet coloring device is by being staggered distribution three layers along the outer surface of conveying pipe to coloring pipe and being placed in helical coloring plate layer, cooperate with the design of coloring pipe outer end obliquely downward and the six groups of spray nozzles of bottom transverse arrangement, can all-around, multilevel and evenly spray pigment to micro-pellet;Meanwhile, micro-pellet directly falls in helical coloring plate directly above from feed hopper, with helical coloring plate rotation movement, with pigment fully contact, realize efficient, even coloring, effectively avoid the problem of coloring dead angle and local coloring deficiency, greatly improve the quality and consistency of micro-pellet coloring.

Description

Technical Field

[0001] This utility model relates to the field of microparticle preparation technology, specifically to a microparticle coloring device. Background Technology

[0002] Microcapsules are spherical or near-spherical formulations widely used in the pharmaceutical field. They can serve as drug carriers, encapsulating or adsorbing drugs onto their surface. They offer advantages such as accurate dosage, high bioavailability, and convenient administration. Microcapsules containing different drug components can be distinguished by coloring, making it easier for patients to identify and take them. This is one of the important reasons for the existence of microcapsule coloring devices.

[0003] However, existing micro-pellet coloring devices still have certain problems in use: Existing microcapsule coloring devices often result in uneven coloring when preparing microcapsules for large-scale production, making it difficult to ensure that each microcapsule achieves a consistent and good coloring effect, which affects product quality. Moreover, the coloring efficiency is low and cannot meet the needs of large-scale production, leading to longer production cycles and increased costs. Therefore, we propose a microparticle coloring device to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a micro-pellet coloring device to solve the problems of uneven coloring in the micro-pellet coloring device proposed in the background art when preparing micro-pellets for large-scale micro-pellet coloring, making it difficult to ensure that each micro-pellet can obtain a consistent and good coloring effect, which affects product quality; moreover, the coloring efficiency is low and cannot meet the needs of large-scale production, resulting in extended production cycle and increased cost.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a micro-pellet coloring device, comprising a base and a coloring barrel, wherein the coloring barrel is fixed above the base, a barrel cover is connected to the upper flange of the coloring barrel, a feeding hopper is installed above the barrel cover, a pigment box is placed above the base, a feeding port is connected above the pigment box, a conveying pump is installed above the pigment box, a conveying pipe is connected to the upper part of the conveying pump, and the end of the conveying pipe extends into the interior of the coloring barrel, a spiral coloring plate is fixed on the outer surface of the conveying pipe and inside the coloring barrel, a coloring tube is connected to the outer surface of the conveying tube and inside the coloring barrel, a plurality of spray nozzles are connected to the bottom of the coloring tube, a discharge port is opened at the bottom of the coloring barrel, a discharge pipe is installed at the bottom of the base and at the discharge port, a recycling box is installed at the outlet end of the discharge pipe, a screen is placed in the middle of the recycling box, and a recycling chamber is provided inside the recycling box and below the screen.

[0006] Using the above technical solution, the pigment in the pigment box is transported to the coloring tank by a conveying pump through a conveying pipe, and sprayed out by the spray nozzles on the coloring pipe. With the assistance of the spiral coloring plate, the micro-pellets entering from the feed hopper are colored in a rolling manner. After coloring, the micro-pellets fall into the recycling box from the discharge port through the discharge pipe. The screen separates the micro-pellets from the excess pigment, achieving uniform coloring of the micro-pellets. At the same time, the excess pigment during discharge is recycled and reused through the recycling box and screen, reducing costs and waste.

[0007] Preferably, the bottom end of the feed hopper extends into the interior of the coloring barrel, and the outlet of the feed hopper is located directly above the spiral coloring plate.

[0008] The above technical solution involves extending the bottom of the feed hopper into the coloring barrel and positioning the outlet directly above the spiral coloring plate. This utilizes the gravity of the micro-pellets to allow them to fall directly from the feed hopper into the starting position of the spiral coloring plate. As the spiral coloring plate rotates, the micro-pellets move, ensuring they fall precisely into the coloring area. Driven by the spiral coloring plate, they fully contact the pigment sprayed from the nozzle, achieving uniform coloring and improving the coloring effect and quality.

[0009] Preferably, the coloring tubes are arranged in three layers along the outer surface of the conveying tube, and all three layers of coloring tubes are located between the spiral coloring plate layers.

[0010] By adopting the above technical solution, the coloring tubes are staggered into three layers along the outer surface of the conveying tube and placed between the spiral coloring plates. This staggered layout expands the pigment spraying range. When the micro-pellets are moved by the spiral coloring plates, the micro-pellets can fully contact the sprayed pigment at different heights. This allows for all-round and multi-layer coloring of the micro-pellets, avoiding coloring dead corners, effectively improving the uniformity and overall quality of coloring, and ensuring that each micro-pellet achieves a good coloring effect.

[0011] Preferably, the outer end of the coloring tube is designed to be angled downwards, and six sets of spray nozzles are arranged horizontally along the bottom of the coloring tube.

[0012] By adopting the above technical solution, the outer end of the coloring tube is designed to be angled downwards, which allows the direction of pigment spraying to form a certain angle with the movement path of the micro-pellets on the spiral coloring plate, thereby enhancing the impact force of the pigment. The horizontal arrangement of the six spray nozzles expands the coverage area of ​​the single-layer horizontal spray, making the pigment sprayed more evenly and comprehensively on the surface of the micro-pellets, improving the coloring efficiency, avoiding insufficient coloring of local micro-pellets, and ensuring the consistency and uniformity of the overall coloring effect of the micro-pellets.

[0013] Preferably, the bottom end of the spiral coloring plate is directly opposite the feeding port, and the feeding port is connected to the discharge pipe, wherein the inner bottom of the discharge pipe is designed with a downward sloping surface.

[0014] Using the above technical solution, the spiral coloring plate conveys the colored microspheres to the bottom. Since the bottom is directly opposite the discharge port, the microspheres can fall in smoothly. The downward-sloping design at the bottom of the discharge pipe uses the weight of the microspheres and the guiding effect of the slope to change their direction of movement, so that the colored microspheres can be quickly and smoothly discharged from the discharge port through the discharge pipe, avoiding accumulation and blockage of microspheres in the discharge stage, and ensuring the continuity and efficiency of the entire coloring process.

[0015] Preferably, two sets of handles are symmetrically installed on the inner side of the screen, and a discharge port is connected to the outer side of the recycling bin, with a valve installed in the middle of the discharge port.

[0016] Using the above technical solution, the aperture of the screen is smaller than the diameter of the micro-pellets but larger than the particle size of the pigment, which allows the pigment to fall easily while intercepting the micro-pellets. A handle is installed on the inside of the screen, allowing personnel to easily install, disassemble, and clean the screen. The outside of the recycling bin is equipped with a discharge port with a valve, which controls the discharge of excess pigment in the recycling bin by opening and closing the valve. The handle ensures convenient screen maintenance and facilitates timely cleaning of impurities on the screen to ensure screening effect. The discharge port and valve can precisely control the discharge of pigment after recycling, facilitating subsequent processing or reuse of the recycled pigment.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. By distributing three layers of coloring tubes alternately along the outer surface of the conveying pipe and placing them between the layers of the spiral coloring plate, combined with the downward-sloping design of the outer end of the coloring tubes and the six sets of spray nozzles arranged horizontally at the bottom, pigment can be sprayed onto the micro pellets in an all-round, multi-layered and uniform manner. At the same time, the micro pellets fall directly from the feed hopper above the spiral coloring plate and move with the rotation of the spiral coloring plate, making full contact with the pigment. This achieves efficient and uniform coloring, effectively avoiding the problems of dead corners and insufficient local coloring, and greatly improving the quality and consistency of coloring the micro pellets. 2. The bottom of the spiral coloring plate is directly opposite the feeding port, and the feeding port is connected to the discharge pipe with a downward-sloping design at the bottom. This allows the colored microspheres to be discharged from the device quickly and smoothly, avoiding accumulation and blockage, and ensuring the continuity and efficiency of the coloring process. Two sets of handles are symmetrically installed on the inside of the screen, which facilitates the installation, disassembly, and cleaning of the screen by the staff, ensuring the screening effect. The recovery box can separate the microspheres from the excess pigment. The recovery chamber collects the pigment, and the discharge can be precisely controlled through the valved outlet, which facilitates the subsequent processing and reuse of the recovered pigment, reduces production costs, and reduces resource waste. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view; Figure 2This is a schematic diagram of the internal spiral coloring structure of the main body of this utility model; Figure 3 This is a schematic diagram of the connection structure of the conveying pipe and the coloring pipe of this utility model; Figure 4 This is a schematic diagram of the material discharge structure after coloring according to this utility model; Figure 5 This is a schematic diagram of the pigment and micro-pellet sieving and recovery structure of this utility model.

[0019] In the diagram: 1. Base; 2. Coloring bucket; 3. Bucket lid; 4. Feed hopper; 5. Pigment box; 6. Feeding port; 7. Conveying pump; 8. Conveying pipe; 9. Spiral coloring plate; 10. Coloring pipe; 11. Spray nozzle; 12. Discharge port; 13. Discharge pipe; 14. Recycling box; 15. Screen; 16. Handle; 17. Recycling chamber; 18. Discharge port; 19. Valve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1-5This utility model provides a technical solution: a micro-pellet coloring device, including a base 1 and a coloring tank 2. The coloring tank 2 is fixed above the base 1, and a tank cover 3 is connected to the upper flange of the coloring tank 2. A feeding hopper 4 is installed above the tank cover 3. A pigment box 5 is placed above the base 1, and a feeding port 6 is connected to the upper part of the pigment box 5. A conveying pump 7 is installed above the pigment box 5, and a conveying pipe 8 is connected to the upper part of the conveying pump 7. The end of the conveying pipe 8 extends into the interior of the coloring tank 2, and the outer surface of the conveying pipe 8 is positioned... A spiral coloring plate 9 is fixed inside the coloring tank 2. A coloring pipe 10 is connected to the outer surface of the conveying pipe 8 inside the coloring tank 2. Several spray nozzles 11 are connected to the bottom of the coloring pipe 10. A discharge port 12 is opened at the bottom of the coloring tank 2. A discharge pipe 13 is installed at the bottom of the base 1 at the discharge port 12. A recycling box 14 is installed at the outlet end of the discharge pipe 13. A screen 15 is placed in the middle of the recycling box 14. A recycling chamber 17 is set inside the recycling box 14 below the screen 15. The bottom end of the feed hopper 4 extends into the interior of the coloring tank 2, and the outlet of the feed hopper 4 is located directly above the spiral coloring plate 9. Three layers of coloring pipes 10 are staggered along the outer surface of the conveying pipe 8, and all three layers of coloring pipes 10 are located between the layers of the spiral coloring plate 9. The outer end of the coloring pipe 10 is designed to slope downward, and six sets of spray nozzles 11 are arranged horizontally along the bottom of the coloring pipe 10. The bottom end of the spiral coloring plate 9 is directly opposite the discharge port 12, and the discharge port 12 is connected to the discharge pipe 13. The bottom of the discharge pipe 13 is designed with a downward sloping surface. Two sets of handles 16 are symmetrically installed on the inner side of the screen 15. The outer side of the recycling box 14 is connected to the discharge port 18, and a valve 19 is installed in the middle of the discharge port 18.

[0022] Pigment is added from pigment box 5 through feeding port 6, and conveying pump 7 transports the pigment through conveying pipe 8 to coloring tank 2. Because the coloring pipe 10 has three layers staggered along the outer surface of conveying pipe 8 and is located between the layers of spiral coloring plate 9, with its outer end angled downwards and six sets of spray nozzles 11 arranged horizontally at the bottom, it can spray pigment evenly and comprehensively onto the micro-pellets that fall from the feed hopper 4 and are directly above the spiral coloring plate 9. The rotation of the spiral coloring plate 9 drives the micro-pellets to move, ensuring the micro-pellets are fully colored before being conveyed to the bottom. Since the bottom is directly opposite the discharge port 12, the micro-pellets fall into the discharge pipe 13, which is connected to the discharge port 12 and has an inner bottom angled downwards, and are smoothly discharged to the recovery box 14 by gravity. The screen 15 in the middle of the recycling bin 14 can separate micro-particles from excess pigment. The two sets of handles 16 on the inner side of the screen 15 facilitate the installation, disassembly and cleaning of the screen 15. The recycling chamber 17 collects excess pigment. The discharge port 18 with valve 19 on the outer side of the recycling bin 14 can control the discharge of pigment, which is convenient for subsequent processing and reuse. The whole device realizes efficient and uniform coloring of micro-particles and pigment recycling.

[0023] Working Principle: For this type of micro-pellet coloring device, during operation, pigment is added to the pigment tank 5 through the feeding port 6. The conveying pump 7 is started, and the pigment is conveyed to the coloring tank 2 through the conveying pipe 8. The micro-pellets fall from the feeding hopper 4, and because its bottom outlet is located directly above the spiral coloring plate 9, the micro-pellets fall directly onto the spiral coloring plate 9. Since the coloring pipe 10 is distributed in three layers along the outer surface of the conveying pipe 8 and is located between the layers of the spiral coloring plate 9, its outer end is slanted downwards, and six sets of spray nozzles 11 are arranged horizontally at the bottom. The pigment is sprayed out from the spray nozzles 11 in all directions and in multiple layers, uniformly coloring the micro-pellets that move with the rotation of the spiral coloring plate 9. After coloring is completed, the spiral coloring plate 9 conveys the micro-pellets to the bottom. Because the bottom end is directly opposite the discharge port 12, and the discharge port 12 is connected to the discharge pipe 13 with an inner bottom slanted downwards design, the micro-pellets fall smoothly into the discharge pipe 13 and are discharged to the recovery box 14. The screen 15 in the middle of the recycling box 14 separates the micro-particles from the excess pigment. The excess pigment enters the recycling chamber 17, and the pigment can be discharged through the outlet 18 with valve 19 on the outside of the recycling box 14.

[0024] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A micro-pellet coloring device, comprising a base (1) and a coloring tank (2), characterized in that: A coloring bucket (2) is fixed above the base (1). A bucket cover (3) is connected to the upper flange of the coloring bucket (2). A feed hopper (4) is installed above the bucket cover (3). A pigment box (5) is placed above the base (1). A feeding port (6) is connected above the pigment box (5). A conveying pump (7) is installed above the pigment box (5). A conveying pipe (8) is connected above the conveying pump (7). The end of the conveying pipe (8) extends into the interior of the coloring bucket (2). A spiral coloring plate (9) is fixed on the outer surface of the conveying pipe (8) and inside the coloring bucket (2). The outer surface of the conveying pipe (8) and inside the coloring barrel (2) are connected to a coloring pipe (10). Several spray nozzles (11) are connected to the bottom of the coloring pipe (10). The bottom of the coloring barrel (2) is provided with a discharge port (12). The bottom of the base (1) and at the discharge port (12) is provided with a discharge pipe (13). The outlet end of the discharge pipe (13) is provided with a recycling box (14). A screen (15) is placed in the middle of the recycling box (14). A recycling chamber (17) is provided inside the recycling box (14) and below the screen (15).

2. The micro-pellet coloring device according to claim 1, characterized in that: The bottom end of the feed hopper (4) extends into the interior of the coloring barrel (2), and the outlet of the feed hopper (4) is located directly above the spiral coloring plate (9).

3. The micro-pellet coloring device according to claim 1, characterized in that: The coloring tubes (10) are arranged in three layers along the outer surface of the conveying tube (8), and all three layers of coloring tubes (10) are located between the spiral coloring plates (9).

4. The micro-pellet coloring device according to claim 1, characterized in that: The outer end of the coloring tube (10) is designed to be angled downwards, and six sets of spray nozzles (11) are arranged horizontally along the bottom of the coloring tube (10).

5. The micro-pellet coloring device according to claim 1, characterized in that: The bottom end of the spiral coloring plate (9) is directly opposite the discharge port (12), and the discharge port (12) is connected to the discharge pipe (13). The inner bottom of the discharge pipe (13) is designed with a downward sloping surface.

6. The micro-pellet coloring device according to claim 1, characterized in that: Two sets of handles (16) are symmetrically installed on the inner side of the screen (15), and the outer side of the recycling box (14) is connected to the outlet (18), and a valve (19) is installed in the middle of the outlet (18).

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