Process for the preparation of a liquid slurry coating and a slurry spraying apparatus therefor

Abstract

The application discloses a liquid slurry coating preparation method and a slurry spraying device thereof, and comprises a coating machine body, a sugar coating pot is arranged at the top of the coating machine body, and a support is arranged on the front of the coating machine body; a turnover mechanism is arranged at the top of the support, a heating mechanism is arranged at the top of the coating machine body, and a slurry feeding mechanism is arranged at the bottom of the coating machine body; the turnover mechanism is used for turning the inner cavity of the sugar coating pot, adjusting the angle of one end of the heating mechanism and adjusting the slurry spraying angle of the liquid slurry. The turnover mechanism, the heating mechanism and the slurry feeding mechanism are matched and arranged, so that the talcum powder and the single sugar slurry are mixed and heated, and then are uniformly sprayed on the tablet in the inner cavity of the sugar coating pot, the mixed hot sugar slurry can uniformly coat, the operation space is saved, there is no crystallization precipitation and storage pollution risk, the problems of traditional coating shell removal, unsmooth tablet surface, large tablet weight difference or moisture absorption are solved, the process is simple, and the product quality of the drug coating is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pharmaceutical coating, in particular to a liquid slurry coating preparation method and a slurry spraying device. BACKGROUND

[0002] Coating is a process of coating sugar or other film-forming materials on the surface of solid pharmaceutical preparations in a specific device according to a specific process, so that after drying, a layer or several layers of multifunctional protective layer with different thickness and elasticity are tightly adhered to the surface. Coating is often used in the manufacture of pharmaceutical products.

[0003] The existing traditional pharmaceutical coating is to add single sugar slurry multiple times on the surface of the coated tablet, so that the coated tablet is evenly attached, and then talc is added to wrap the surface of the coated tablet. The single sugar slurry needs to be cooled after being cooked, which is easy to be contaminated, and the solubility of the single sugar slurry decreases when the temperature decreases, which causes crystallization, resulting in uneven and smooth tablet surface. More waxing processes are needed, and the coating layer is easy to peel off, the tablet surface is not smooth, the tablet weight difference is large, and it is hygroscopic, which affects the product quality of pharmaceutical coating. SUMMARY

[0004] The purpose of the present application is to provide a liquid slurry coating preparation method and a slurry spraying device to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a slurry spraying device for liquid slurry coating preparation, comprising:

[0006] A sugar coating pot is rotatably connected to the top of the coating machine body, and a support is arranged on the front of the coating machine body;

[0007] A turnover mechanism is arranged on the top of the support, a heating mechanism is arranged on the top of the coating machine body, the heating mechanism is used for heating the inner cavity of the sugar coating pot, a slurry feeding mechanism is arranged on the bottom of the coating machine body, and the slurry feeding mechanism is used for heating and mixing the liquid slurry;

[0008] The turnover mechanism is used for turning over the inner cavity of the sugar coating pot, adjusting the angle of the heating mechanism at one end, and adjusting the slurry spraying angle.

[0009] Preferably, the turnover mechanism comprises a positioning rod, a driving assembly, a linkage assembly, a fixing rod, a slurry spraying assembly and an agitating assembly, one end of the positioning rod is in a hook structure, the positioning rod is fixed to the top end of the support, the driving assembly is arranged on the top of the positioning rod, one end of the heating mechanism is arranged on one side of the top of the driving assembly, the linkage assembly is arranged on one end of the positioning rod, the slurry spraying assembly is arranged on the bottom of the linkage assembly through the fixing rod, the linkage assembly is used for adjusting the angle of the slurry spraying assembly, one end of the slurry feeding mechanism is fixedly connected to the top of the slurry spraying assembly, the agitating assembly is arranged on one end of the positioning rod, and the agitating assembly is used for agitating the inner cavity of the sugar coating pot.

[0010] Preferably, the driving assembly comprises a cylinder, a push rod, a first set of tooth blocks, a second set of tooth blocks, a sliding block and a sliding frame, the cylinder is fixed to the upper surface of the positioning rod, the push rod is fixed to one end of the cylinder, the first set of tooth blocks is fixed to the upper surface of the push rod, the second set of tooth blocks is fixed to the lower surface of the other end of the push rod, the sliding block is fixed to the other end of the push rod, the sliding block is in sliding penetration connection with the upper surface of the positioning rod, the sliding frame is fixed to the upper surface of the positioning rod, the sliding frame is in sliding penetration connection with one end of the push rod, and the heating mechanism is arranged on one side of the push rod.

[0011] Preferably, the driving assembly comprises a cylinder, a push rod, a first set of tooth blocks, a second set of tooth blocks, a sliding block and a sliding frame, the cylinder is fixed to the upper surface of the positioning rod, the push rod is fixed to one end of the cylinder, the first set of tooth blocks is fixed to the upper surface of the push rod, the second set of tooth blocks is fixed to the lower surface of the other end of the push rod, the sliding block is fixed to the other end of the push rod, the sliding block is in sliding penetration connection with the upper surface of the positioning rod, the sliding frame is fixed to the upper surface of the positioning rod, the sliding frame is in sliding penetration connection with one end of the push rod, and the heating mechanism is arranged on one side of the push rod.

[0012] Preferably, the driving assembly comprises a cylinder, a push rod, a first set of tooth blocks, a second set of tooth blocks, a sliding block and a sliding frame, the cylinder is fixed to the upper surface of the positioning rod, the push rod is fixed to one end of the cylinder, the first set of tooth blocks is fixed to the upper surface of the push rod, the second set of tooth blocks is fixed to the lower surface of the other end of the push rod, the sliding block is fixed to the other end of the push rod, the sliding block is in sliding penetration connection with the upper surface of the positioning rod, the sliding frame is fixed to the upper surface of the positioning rod, the sliding frame is in sliding penetration connection with one end of the push rod, and the heating mechanism is arranged on one side of the push rod.

[0013] Preferably, the driving assembly comprises a cylinder, a push rod, a first set of tooth blocks, a second set of tooth blocks, a sliding block and a sliding frame, the cylinder is fixed to the upper surface of the positioning rod, the push rod is fixed to one end of the cylinder, the first set of tooth blocks is fixed to the upper surface of the push rod, the second set of tooth blocks is fixed to the lower surface of the other end of the push rod, the sliding block is fixed to the other end of the push rod, the sliding block is in sliding penetration connection with the upper surface of the positioning rod, the sliding frame is fixed to the upper surface of the positioning rod, the sliding frame is in sliding penetration connection with one end of the push rod, and the heating mechanism is arranged on one side of the push rod.

[0014] Preferably, the driving assembly comprises a cylinder, a push rod, a first set of tooth blocks, a second set of tooth blocks, a sliding block and a sliding frame, the cylinder is fixed to the upper surface of the positioning rod, the push rod is fixed to one end of the cylinder, the first set of tooth blocks is fixed to the upper surface of the push rod, the second set of tooth blocks is fixed to the lower surface of the other end of the push rod, the sliding block is fixed to the other end of the push rod, the sliding block is in sliding penetration connection with the upper surface of the positioning rod, the sliding frame is fixed to the upper surface of the positioning rod, the sliding frame is in sliding penetration connection with one end of the push rod, and the heating mechanism is arranged on one side of the push rod.

[0015] Preferably, the heating mechanism comprises an air inlet pipe, a high-temperature air cavity, a first air pipe, a heating cavity, a connecting assembly and a second air pipe, the high-temperature air cavity is arranged on the top of the coating machine body, the air inlet pipe is fixedly connected with the inner wall of the high-temperature air cavity, the first air pipe is fixedly connected with one side of the inner wall of the high-temperature air cavity, the heating cavity is arranged in the middle of the sugar pot, the structure of the heating cavity is matched with the structure of the sugar pot, the second air pipe is arranged in the inner cavity of the connecting assembly, and the second air pipe is communicated with the inner cavity of the high-temperature air cavity.

[0016] Preferably, the connecting assembly comprises a U-shaped pipe, a bent pipe, two connecting rods and a connecting gear, the U-shaped pipe is fixed on the top of the coating machine body, the top of the bent pipe is rotatably connected with one end of the U-shaped pipe through two connecting rods, the second air pipe is connected with the inner cavities of the U-shaped pipe and the bent pipe, the connecting gear is fixed on the outer wall of one of the connecting rods, and the connecting gear is meshedly connected with the top of the first set of tooth blocks.

[0017] The application also provides a liquid slurry coating preparation method, which comprises the following specific use steps.

[0018] Step one: a certain proportion of talcum powder and monosaccharide slurry are put into the inner cavity of the mixing cavity, and the talcum powder and the monosaccharide slurry are heated into mixed hot slurry by the heating mixing mechanism in the inner cavity of the mixing cavity;

[0019] Step two: the blank tablets are put into the inner cavity of the sugar pot, the coating machine body is started, the sugar pot can stably rotate, the inner cavity of the air inlet pipe is filled with hot steam, the hot steam enters the inner cavities of the heating cavity and the sugar pot respectively, the liquid pump on the liquid inlet pipe is started, the hot slurry in the inner cavity of the mixing cavity enters the inner cavity of the long pipe through the liquid inlet pipe, the threaded heating wire is started, the slurry in the inner cavity of the long pipe is not cooled, the hot slurry is sprayed out of the inner cavity of the spray head, and the hot slurry is uniformly sprayed on the surface of the blank tablets;

[0020] Step three: the air cylinder is started, the push rod is rotated on the positioning rod to a certain extent, the connecting gear and the driving gear are meshed with the first set of tooth blocks and the second set of tooth blocks respectively, the bent pipe and the long pipe can be adjusted to a certain angle in the inner cavity of the sugar pot, and after the push rod continuously slides to one end of the positioning rod, the connecting gear and the driving gear are no longer meshed with the first set of tooth blocks and the second set of tooth blocks, and the push rod pushes the bent rod to move back and forth for a short distance, so that the bent rod stirs the blank tablets stacked together in the inner cavity of the sugar pot.

[0021] The technical effects and advantages of the application are as follows:

[0022] (1) The present application utilizes the setting mode of cooperation of the overturning mechanism, the heating mechanism and the pulp feeding mechanism, so that the talc powder and the monosaccharide pulp are uniformly sprayed on the plain sheet in the inner cavity of the sugar boiler after being mixed and heated, the mixed hot pulp can uniformly coat, and the operation space is saved, there is no crystallization precipitation, no storage pollution risk, the problems of traditional coating, uneven and large shell or moisture absorption are solved, the process is simple, and the product quality of the drug coating is improved;

[0023] (2) The present application utilizes the setting mode of cooperation of the driving assembly, the linkage assembly, the pulp spraying assembly and the connecting assembly, so that one cylinder can respectively adjust the pulp spraying angle and the steam spraying direction angle, and repeatedly overturn the plain sheet accumulated in the inner cavity of the sugar boiler, save resources, and make the outer wall of the drug plain sheet uniformly coated, so that each coated tablet is uniformly increased in weight and solidified, the tablet weight difference is stable, and the product quality is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic view of the present application.

[0025] Figure 2 It is a whole side structure schematic view of the present application.

[0026] Figure 3 It is a whole structure schematic view of the present application Figure 2 A local enlarged structure schematic view.

[0027] Figure 4 It is a whole structure schematic view of the present application positioning rod.

[0028] Figure 5 It is a local enlarged structure schematic view of the present application B. Figure 3

[0029] Figure 6 It is a front local sectional structure schematic view of the present application bending rod.

[0030] In the figure:

[0031] 1, coating machine body; 2, sugar boiler; 3, support;

[0032] 4, overturning mechanism; 41, positioning rod; 42, driving assembly; 421, cylinder; 422, push rod; 423, first set of tooth blocks; 424, second set of tooth blocks; 425, sliding block; 426, sliding frame; 43, linkage assembly; 431, linkage rod; 432, rotating nail; 433, linkage gear; 44, fixed rod; 45, pulp spraying assembly; 451, long tube; 452, threaded heating wire; 453, spray head; 46, stirring assembly; 461, bending rod; 462, push rod; 463, movable groove; 464, pull rod; 465, compression spring; ​

[0033] 5, heating mechanism; 51, air inlet pipe; 52, high-temperature air cavity; 53, first air pipe; 54, heating cavity; 55, connecting assembly; 551, U-shaped pipe; 552, bent pipe; 553, connecting rod; 554, connecting gear; 56, second air pipe;

[0034] 6, pulp feeding mechanism; 61, mixing cavity; 62, liquid inlet pipe. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0036] The present application provides a liquid slurry coating preparation method and its slurry spraying equipment as shown in the drawings, comprising: Figures 1-6 The coating machine body 1 is rotatably connected with the sugar kettle 2 at the top, the front of the coating machine body 1 is provided with a support 3, the top of the support 3 is provided with a turnover mechanism 4, the support 3 is a commonly used support structure, and the support 3 can adjust the height of the turnover mechanism 4;

[0037] The top of the coating machine body 1 is provided with a heating mechanism 5, the heating mechanism 5 is used for heating the inner cavity of the sugar kettle 2, the bottom of the coating machine body 1 is provided with a pulp feeding mechanism 6, and the pulp feeding mechanism 6 is used for heating and mixing the liquid slurry;

[0038] The turnover mechanism 4 is used for turning over the inner cavity of the sugar kettle 2, adjusting the angle of one end of the heating mechanism 5, and adjusting the slurry spraying angle, the turnover mechanism 4 comprises a positioning rod 41, a driving assembly 42, a linkage assembly 43, a fixed rod 44, a slurry spraying assembly 45 and an agitating assembly 46, one end of the positioning rod 41 is in a hook structure as shown in the drawings, and the positioning rod 41 is fixed to the top end of the support 3;

[0039] Figure 4

[0040] ​​The driving assembly 42 is arranged at the top of the positioning rod 41, and the driving assembly 42 comprises a cylinder 421, a push rod 422, a first set of tooth blocks 423, a second set of tooth blocks 424, a sliding block 425 and a sliding frame 426, the cylinder 421 is fixed to the upper surface of the positioning rod 41, the cylinder 421 is electrically connected with an external power supply through an external switch, the push rod 422 is fixed to one end of the cylinder 421, the side close to the output end of the cylinder 421 of the push rod 422 is in an S-shaped structure, so that the push rod 422 is close to the top of the positioning rod 41 as much as possible, the first set of tooth blocks 423 are fixed to the upper surface of the push rod 422, the second set of tooth blocks 424 are fixed to the lower surface of one end of the push rod 422, the sliding block 425 is fixed to the other end of the push rod 422, the sliding block 425 is slidably and penetratingly connected with the upper surface of the positioning rod 41, and the sliding frame 426 is fixed to the upper surface of the positioning rod 41 and slidably and penetratingly connected with one end of the push rod 422, so that the stability of the push rod 422 in sliding on the top of the positioning rod 41 is improved through the sliding block 425 and the sliding frame 426;

[0041] The linkage assembly 43 is arranged at one end of the positioning rod 41, and the linkage assembly 43 comprises a linkage rod 431, a rotating nail 432 and a linkage gear 433, one end of the linkage rod 431 is rotatably and penetratingly connected with the bottom of the positioning rod 41, the linkage rod 431 is fixedly and penetratingly connected with the outer wall of the rotating nail 432, the linkage gear 433 is fixedly and penetratingly connected with the middle part of the rotating nail 432, the rotating nail 432 is fixedly and penetratingly arranged in the middle part of the positioning rod 41, the linkage gear 433 is meshingly connected with the outer wall of the second set of tooth blocks 424, the bottom of the linkage rod 431 is fixedly connected with one end of a fixed rod 44, the middle part of the fixed rod 44 is slidably and penetratingly connected with the bottom of the positioning rod 41, and the bottom of the linkage rod 431 is slidably and penetratingly connected with the bottom of the positioning rod 41 through a clamping rod, so that when the push rod 422 moves to a certain distance, the linkage gear 433 drives the linkage rod 431 to rotate around the rotating nail 432 as the axis, the fixed rod 44 can be arcuately rotated to a certain extent, the slurry spraying assembly 45 at the end of the fixed rod 44 can be arcuately rotated to a certain extent, and the liquid slurry can be sprayed and coated at different angles;

[0042] The slurry spraying assembly 45 is arranged at the bottom of the linkage assembly 43 through the fixed rod 44, the linkage assembly 43 is used for adjusting the angle of the slurry spraying assembly 45, and the slurry spraying assembly 45 comprises an elongated pipe 451, a threaded heating wire 452 and a plurality of spray heads 453, the inner cavity of the elongated pipe 451 is in a T-shaped structure, the top of the elongated pipe 451 is fixedly and penetratingly connected with the other end of the fixed rod 44, the threaded heating wire 452 is embedded in the inner cavity of the elongated pipe 451 in a threaded structure, and the plurality of spray heads 453 are embedded at equal intervals at the bottom of the elongated pipe 451, the spray head 453 is a spraying head, can uniformly spray the hot slurry mixed by the talcum powder and the monosaccharide slurry on the tablet in the inner cavity of the sugar-coating pot 2, the threaded heating wire 452 can stably heat the mixed liquid slurry in the inner cavity of the elongated pipe 451, so that the spray head 453 is prevented from being blocked or the liquid slurry cannot be stably sprayed due to condensation of the liquid slurry;

[0043] The stirring assembly 46 is arranged at one end of the positioning rod 41, and the stirring assembly 46 is used for stirring the inner cavity of the sugar-coating pot 2. The stirring assembly 46 comprises a bent rod 461, a pushing rod 462, a movable groove 463, a pulling rod 464 and a compression spring 465. The bent rod 461 has a bent structure. The middle part of the bent rod 461 is rotationally connected to the bottom of the positioning rod 41 through a positioning pin. The pushing rod 462 is fixed to one end of the push rod 422. One end of the pushing rod 462 is slidingly connected to the top of the bent rod 461. The movable groove 463 is arranged on the top of the bent rod 461. The movable groove 463 has a spherical groove structure in a cross section. One end of the pulling rod 464 is slidingly connected to the inner cavity of the movable groove 463. One end of the pulling rod 464 has a spherical structure, so that the pulling rod 464 cannot slide out of the inner cavity of the movable groove 463 at will, and the stability of the position of the bent rod 461 is improved. The compression spring 465 is sleeved on the outer wall of the pulling rod 464. The two ends of the compression spring 465 are fixed to the positioning rod 41 and the other end of the pulling rod 464 respectively. Through the elasticity of the compression spring 465, the bent rod 461 can be stably pulled, so that the bent rod 461 can be repeatedly pushed, the bottom of the bent rod 461 can reciprocate to stir the wafer in the inner cavity of the sugar-coating pot 2, the wafer can be stirred by the sugar-coating pot 2 and the bent rod 461, and the stability and uniformity of the coating on the surface of the wafer are improved.

[0044] One end of the heating mechanism 5 is arranged on one side of the top of the driving assembly 42. The heating mechanism 5 is arranged on one side of the push rod 422. The heating mechanism 5 comprises an air inlet pipe 51, a high-temperature air cavity 52, a first air pipe 53, a heating cavity 54, a connecting assembly 55 and a second air pipe 56. The high-temperature air cavity 52 is arranged on the top of the coating machine body 1. The air inlet pipe 51 is fixedly and penetratingly connected to the inner wall of the high-temperature air cavity 52. The inner cavity of the air inlet pipe 51 is connected with high-temperature steam. The first air pipe 53 is fixedly and penetratingly connected to one side of the inner wall of the high-temperature air cavity 52. The first air pipe 53 is rotationally and penetratingly connected to the middle part of the existing stirring shaft of the sugar-coating pot 2, so that the first air pipe 53 does not affect the stable rotation of the sugar-coating pot 2. The heating cavity 54 is arranged in the middle part of the sugar-coating pot 2. The structure of the heating cavity 54 is matched with the structure of the sugar-coating pot 2, so that the inner wall of the sugar-coating pot 2 can be heated, the condensation efficiency of the liquid slurry sprayed on the outer wall of the wafer is improved, and the second air pipe 56 is arranged in the inner cavity of the connecting assembly 55. The second air pipe 56 communicates with the inner cavity of the high-temperature air cavity 52. The second air pipe 56 is a high-temperature-resistant hose. One end of the second air pipe 56 communicates with the inner cavity of the sugar-coating pot 2, so that the inner cavity of the sugar-coating pot 2 can be heated, and the coating efficiency of the medicinal wafer is improved.

[0045] The connecting assembly 55 comprises a U-shaped pipe 551, a bent pipe 552, two connecting rods 553 and a connecting gear 554, the U-shaped pipe 551 is fixed to the top of the coating machine body 1, the top of the bent pipe 552 is rotatably connected with one end of the U-shaped pipe 551 through the two connecting rods 553, the two connecting rods 553 are fixed to the two sides of one end of the U-shaped pipe 551, the two sides of the top of the bent pipe 552 are rotatably connected with the outer walls of the two connecting rods 553 through bearings, the second air pipe 56 is connected with the inner cavities of the U-shaped pipe 551 and the bent pipe 552, the connecting gear 554 is fixed to the outer wall of one of the connecting rods 553, and the connecting gear 554 is in meshing connection with the top of the first set of tooth blocks 423, so that the bent pipe 552 can be adjusted in angle when the push rod 422 moves a certain distance, and the second air pipe 56 can be adjusted at different angles.

[0046] One end of the pulp feeding mechanism 6 is fixedly connected with the top of the pulp spraying assembly 45, the pulp feeding mechanism 6 comprises a mixing cavity 61 and a liquid inlet pipe 62, the mixing cavity 61 is arranged at the bottom of the coating machine body 1, a heating mixing structure is arranged in the inner cavity of the mixing cavity 61, the heating mixing structure is a common existing mechanism, and thus will not be described here, the heating mixing structure can stably mix and stir the talcum powder and the monosaccharide syrup in the inner cavity of the mixing cavity 61, one end of the liquid inlet pipe 62 is fixedly and penetratingly connected with the inner wall of the mixing cavity 61, the other end of the liquid inlet pipe 62 is fixedly and penetratingly connected with the top of the long pipe 451, and the other end of the liquid inlet pipe 62 is fixed to the outer wall of the positioning rod 41 through a connecting ring, so that the mixed hot syrup can stably enter the inner cavity of the long pipe 451 to perform liquid pulp spraying, and the coating is more stable.

[0047] Working principle of the present application:

[0048] The talcum powder and the monosaccharide syrup are put into the inner cavity of the mixing cavity 61 according to a certain proportion, and the talcum powder and the monosaccharide syrup are heated into mixed hot syrup through the heating mixing mechanism in the inner cavity of the mixing cavity 61.

[0049] The inner cavity of the sugar coating pot 2 is put into the inner cavity of the sugar coating pot 2, the sugar coating machine body 1 is started, the sugar coating pot 2 can stably rotate, the hot steam is filled into the inner cavity of the air inlet pipe 51, the hot steam enters the inner cavity of the heating cavity 54 and the inner cavity of the sugar coating pot 2 respectively, the liquid pump on the liquid inlet pipe 62 is started, the hot slurry in the inner cavity of the mixing cavity 61 enters the inner cavity of the long pipe 451 through the liquid inlet pipe 62, the threaded heating wire 452 is started, the slurry cannot be cooled in the inner cavity of the long pipe 451, the hot slurry is sprayed from the inner cavity of the spray nozzle 453, the hot slurry is uniformly sprayed on the surface of the wafer, the wafer is coated and dried by the hot steam at the same time through the uniform rotation of the sugar coating pot 2, the coating is finished, the hot steam drying is finished, the whole liquid slurry is added without dust, and the adhesion rate of the liquid slurry on the wafer is more than 80%, the hot syrup is directly used, the operation space is saved, the effective component is not analyzed, the storage pollution risk is not stored, it is more environmentally friendly and efficient, each layer is uniform and transparent, the color is full, and each product is standardized output, and the quality internal control is effectively unified.

[0050] The cylinder 421 is started, the push rod 422 is rotated on the positioning rod 41 to a certain extent, the connecting gear 554 and the connecting gear 433 are engaged with the first set of tooth blocks 423 and the second set of tooth blocks 424 respectively, the bending pipe 552 and the long pipe 451 can be adjusted to a certain angle in the inner cavity of the sugar coating pot 2, and after the push rod 422 continuously slides to one end of the positioning rod 41, the connecting gear 554 and the connecting gear 433 are no longer engaged with the first set of tooth blocks 423 and the second set of tooth blocks 424, and the push rod 462 pushes the bending rod 461 back and forth for a short distance, so that the bending rod 461 stirs the wafers stacked together in the inner cavity of the sugar coating pot 2, the liquid slurry is uniformly sprayed on the wafers, the coating formed by the liquid slurry is firm, the wafer core is well isolated, the composition of the wafer core cannot penetrate the coating, and the total time is saved by 1 / 3 compared with the traditional coating technology, the water, electricity and gas are greatly reduced, and the waste of raw and auxiliary materials is also reduced.

[0051] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application 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 replacements for some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A slurry coating preparation jetting device, comprising: a coating machine body (1) having a sugar coating pot (2) rotatably connected to the top of the coating machine body (1), and a support (3) arranged on the front of the coating machine body (1); characterized in that the top of the support (3) is provided with a turnover mechanism (4), the top of the coating machine body (1) is provided with a heating mechanism (5) for heating the inner cavity of the sugar coating pot (2), and the bottom of the coating machine body (1) is provided with a slurry feeding mechanism (6) for heating and mixing the slurry; the turnover mechanism (4) is used for turnover of the inner cavity of the sugar coating pot (2), angle adjustment of one end of the heating mechanism (5), and angle adjustment of slurry jetting, and the turnover mechanism (4) comprises a positioning rod (41), a driving assembly (42), a linkage assembly (43), a fixed rod (44), a slurry jetting assembly (45), and an agitating assembly (46), one end of the positioning rod (41) is in a hook structure, the positioning rod (41) is fixed to the top end of the support (3), the driving assembly (42) is arranged on the top of the positioning rod (41), one end of the heating mechanism (5) is arranged on one side of the top of the driving assembly (42), the linkage assembly (43) is arranged on one end of the positioning rod (41), the slurry jetting assembly (45) is arranged on the bottom of the linkage assembly (43) through the fixed rod (44), the linkage assembly (43) is used for angle adjustment of the slurry jetting assembly (45), one end of the slurry feeding mechanism (6) is fixedly connected to the top of the slurry jetting assembly (45), and the agitating assembly (46) is arranged on one end of the positioning rod (41) and used for agitating the inner cavity of the sugar coating pot (2); the driving assembly (42) comprises a gas cylinder (421), a push rod (422), a first set of tooth blocks (423), a second set of tooth blocks (424), a sliding block (425), and a sliding carriage (426), the gas cylinder (421) is fixed to the upper surface of the positioning rod (41), the push rod (422) is fixed to one end of the gas cylinder (421), the first set of tooth blocks (423) are fixed to the upper surface of the push rod (422), the second set of tooth blocks (424) are fixed to the lower surface of one end of the push rod (422), the sliding block (425) is fixed to the other end of the push rod (422), the sliding block (425) is in sliding and penetrating connection with the upper surface of the positioning rod (41), the sliding carriage (426) is fixed to the upper surface of the positioning rod (41), and the sliding carriage (426) is in sliding and penetrating connection with one end of the push rod (422); and the heating mechanism (5) is arranged on one side of the push rod (422). The heating mechanism (5) comprises an air inlet pipe (51), a high-temperature air cavity (52), a first air pipe (53), a heating cavity (54), a connecting assembly (55) and a second air pipe (56), the air inlet pipe (51) is fixedly connected with the inner wall of the high-temperature air cavity (52), one side of the inner wall of the high-temperature air cavity (52) is fixedly connected with the first air pipe (53), the heating cavity (54) is arranged in the middle of the sugar bowl (2), and the second air pipe (56) is arranged in the inner cavity of the connecting assembly (55). The connecting assembly (55) comprises a U-shaped pipe (551), a bent pipe (552), two connecting rods (553) and a connecting gear (554), the U-shaped pipe (551) is fixed to the top of the coating machine body (1), the top of the bent pipe (552) is rotatably connected with one end of the U-shaped pipe (551) through two connecting rods (553), the second air pipe (56) is connected with the inner cavities of the U-shaped pipe (551) and the bent pipe (552), and the connecting gear (554) is fixed to the outer wall of one of the connecting rods (553).

2. The liquid slurry coating preparation gun according to claim 1, characterized in that The connecting assembly (43) comprises a connecting rod (431), a rotating nail (432) and a connecting gear (433), one end of the connecting rod (431) is rotatably connected with the bottom of the positioning rod (41), the connecting rod (431) is fixedly connected with the outer wall of the rotating nail (432), the connecting gear (433) is fixedly connected with the middle of the rotating nail (432), the rotating nail (432) is fixedly connected in the middle of the positioning rod (41), the connecting gear (433) is meshedly connected with the outer wall of the second set of tooth blocks (424), the bottom of the connecting rod (431) is fixedly connected with one end of the fixed rod (44), the middle of the fixed rod (44) is slidably connected with the bottom of the positioning rod (41), and the bottom of the connecting rod (431) is slidably connected with the bottom of the positioning rod (41) through a clamping rod.

3. The liquid slurry coating preparation gun according to claim 2, characterized in that The spraying assembly (45) comprises an elongated pipe (451), a threaded heating wire (452) and a plurality of nozzles (453), the inner cavity of the elongated pipe (451) is in a T-shaped structure, one end of the elongated pipe (451) is fixedly connected with the other end of the fixed rod (44), the threaded heating wire (452) is embedded in the inner cavity of the elongated pipe (451) in a threaded structure, and a plurality of nozzles (453) are embedded at equal intervals at the bottom of the elongated pipe (451).

4. The slurry-coating preparation gun according to claim 3, characterized in that The slurry feeding mechanism (6) comprises a mixing cavity (61) and a liquid inlet pipe (62), the mixing cavity (61) is arranged at the bottom of the coating machine body (1), the inner cavity of the mixing cavity (61) is provided with a heating and mixing structure, one end of the liquid inlet pipe (62) is fixedly connected with the inner wall of the mixing cavity (61) through a liquid pump, and the other end of the liquid inlet pipe (62) is fixedly connected with the top of the elongated pipe (451).

5. The slurry-coating preparation gun according to claim 4, characterized in that The stirring assembly (46) comprises a bent rod (461), a pushing rod (462), a movable slot (463), a pulling rod (464) and a compression spring (465), the middle part of the bent rod (461) is rotationally connected with the bottom of the positioning rod (41) through a positioning nail, one end of the pushing rod (462) is fixed to the push rod (422), the movable slot (463) is arranged on the top of the bent rod (461), one end of the pulling rod (464) is slidably connected with the inner cavity of the movable slot (463), the compression spring (465) is sleeved on the outer wall of the pulling rod (464), and the two ends of the compression spring (465) are fixed to the positioning rod (41) and the other end of the pulling rod (464) respectively.

6. The slurry coating preparation gun according to claim 1, wherein The high-temperature gas cavity (52) is arranged on the top of the coating machine body (1), the structure of the heating cavity (54) is matched with the structure of the sugar coating pot (2), and the second air pipe (56) is communicated with the inner cavity of the high-temperature gas cavity (52).

7. A process for the preparation of a liquid slurry coating characterized in that, The liquid slurry coating preparation spraying device comprises the following specific use steps: Step one: the talcum powder and the monosaccharide slurry are put into the inner cavity of the mixing cavity (61) according to a certain proportion, and the talcum powder and the monosaccharide slurry are heated into mixed hot slurry through the heating and mixing mechanism in the inner cavity of the mixing cavity (61); Step two: the raw tablets are put into the inner cavity of the sugar coating pot (2), the coating machine body (1) is started, the sugar coating pot (2) can stably rotate, the hot steam is filled into the inner cavity of the air inlet pipe (51), the hot steam enters the inner cavities of the heating cavity (54) and the sugar coating pot (2) respectively, the liquid pump on the liquid inlet pipe (62) is started, the hot slurry in the inner cavity of the mixing cavity (61) enters the inner cavity of the long tube (451) through the liquid inlet pipe (62), the threaded heating wire (452) is started, the slurry cannot be cooled in the inner cavity of the long tube (451), the hot slurry can be sprayed out of the inner cavity of the spraying nozzle (453), and the hot slurry can be uniformly sprayed on the surface of the raw tablets; Step three: the air cylinder (421) is started, the push rod (422) can rotate on the positioning rod (41) to a certain extent, the connecting gear (554) and the connecting gear (433) are engaged with the first set of tooth blocks (423) and the second set of tooth blocks (424) respectively, the bent pipe (552) and the long tube (451) can be adjusted to a certain angle in the inner cavity of the sugar coating pot (2) respectively, when the push rod (422) continuously slides to one end of the positioning rod (41), the connecting gear (554) and the connecting gear (433) are not engaged with the first set of tooth blocks (423) and the second set of tooth blocks (424) any more, and the pushing rod (462) pushes the bent rod (461) to and fro for a short distance, so that the bent rod (461) stirs the raw tablets stacked together in the inner cavity of the sugar coating pot (2).

Images