CN114288185B - Coating machine for internally and externally mixing medicine particles - Google Patents

Coating machine for internally and externally mixing medicine particles Download PDF

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Publication number
CN114288185B
CN114288185B CN202111675974.6A CN202111675974A CN114288185B CN 114288185 B CN114288185 B CN 114288185B CN 202111675974 A CN202111675974 A CN 202111675974A CN 114288185 B CN114288185 B CN 114288185B
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shell
groove
roller
coating
spring
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CN114288185A (en
Inventor
杨春艳
刘振峰
赖小锋
易小禄
赖勇
彭云龙
张升军
夏国民
曹梁
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Yichun Wanshen Intelligent Equipment Co ltd
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Yichun Wanshen Pharmaceutical Machinery Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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Abstract

The invention belongs to the field of medicine granule coating, and particularly relates to a coating machine for mixing medicine granules inside and outside, which comprises a fixed cylinder, a roller, a motor, a circular plate, a hard tube B, an arm rod, a ring sleeve A and a coating mechanism, wherein the roller which is used for containing medicine granules and is driven by the motor is rotationally matched in the fixed cylinder with an opening at one end, and a feed inlet is arranged in the middle of the end face of the roller; the coating mechanism carries out the coating process to the drug particles from the inside and the outside of the drug particles in the process of moving around the hard tube B, thereby improving the coating efficiency of the drug particles.

Description

Coating machine for internally and externally mixing medicine particles
Technical Field
The invention belongs to the field of medicine granule coating, and particularly relates to a coating machine for mixing medicine granules inside and outside.
Background
The coating machine is an efficient, energy-saving, safe and clean mechatronic device which can carry out organic film coating, water-soluble film coating and slow and controlled release coating on tablets, pills, candies and the like. The coating machine is suitable for the industries of pharmacy, chemical industry, food and the like.
The coating machine coats the medicine grains by spraying the adhesive solution with the sugar powder on the medicine grains which are overturned and stirred along with the pot body in the pot body.
The shower nozzle that is used for spraying coating material to the interior medicine grain of pot body in traditional medicine grain coating machine is located medicine grain top for the coating material that the shower nozzle sprayed can only evenly spray to surperficial one deck medicine grain, leads to the pot body of coating machine must just can make evenly parcel coating material on whole medicine grain through the rotation of longer time, thereby reduces the production efficiency of coating machine.
If the nozzle is placed in the medicine particles, the nozzle is blocked due to the surrounding of the medicine particles, so that the uniform coating process of the medicine particles cannot be effectively finished.
The invention designs a coating machine for mixing medicine granules inside and outside to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a coating machine for mixing internal and external medicine particles, which is realized by adopting the following technical scheme.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
A coating machine for mixing medicine particles inside and outside comprises a fixed cylinder, a roller, a motor, a circular plate, a hard tube B, an arm rod, a ring sleeve A and a coating mechanism, wherein the fixed cylinder with an opening at one end is matched with the roller which is used for containing medicine particles and is driven by the motor in a rotating way, and the middle part of the end surface of the roller is provided with a feed inlet; be fixed in the solid fixed cylinder and have circular slot B on the plectane with the rotatory complex of cylinder inner wall, circular slot B's the central axis is located under the cylinder central axis, guarantee to break away from the capsule mechanism of medicine granule and the interval between the medicine granule is less, and then guarantee to break away from the capsule mechanism of medicine granule and can continue to carry out the short distance from medicine granule top to spray the coating material fast effectively to the medicine granule and improve the coating mechanism and get into after the medicine granule from inside spray the frequency of coating material to the medicine granule, improve the coating mechanism to the efficiency of medicine granule capsule. A hard tube B which is communicated with a liquid pump placed in the fluid coating material and is driven by a roller is rotationally matched in the round groove B; three hollow arm rods communicated with the hard tube B are uniformly arranged on the hard tube B in the circumferential direction; the tail end of each arm rod is provided with a ring sleeve A, the central axis of which is parallel to the hard tube B and is communicated with the arm rod, and a coating mechanism is rotationally matched on the ring sleeve A.
The coating mechanism comprises a cantilever, a ring sleeve B, a volute spring, a shell A, a shell B, a valve block, a spring A, a spray pipe, a square sleeve, a push rod, a driving rod, a spring B and a guide pin, wherein the shell A with an opening at one side is uniformly provided with the three shells B along the length direction thereof, the inside of each shell B is hermetically and slidably provided with the valve block for opening and closing a liquid through groove C at the bottom of the shell B and the spring A for resetting the valve block along the direction vertical to the length of the shell, and the square sleeve arranged at the liquid through groove D on the valve block is movably arranged in a chute A at the top of the shell A and a chute C at the top of the shell B; a spray pipe for spraying coating materials to the opening of the shell A is arranged at the liquid through groove C on each shell B; the three square sleeves are communicated through hollow cantilevers communicated with the three square sleeves; one end of the cantilever parallel to the hard tube B is provided with a ring sleeve B which is in sealed rotary fit with the corresponding ring sleeve A; a volute spring which is used for relatively rotating and resetting the ring sleeve B and the ring sleeve A and is always in a compression state is arranged between the ring sleeve B and the ring sleeve A; a driving rod slides in the sliding grooves B at the two ends of the shell A along the length direction of the shell A, and a spring B for resetting the driving rod is nested on the driving rod; the guide pin arranged at the tail end of the drive rod is matched with the guide groove and the movable groove which are mutually communicated on the circular plate and the inclined plane A at the notch of the guide groove; the driving rod is provided with three driving grooves which are correspondingly matched with the mandrils arranged on the valve block one by one, and the inclined plane C of each driving groove is matched with the inclined plane B at the tail end of the corresponding mandrils.
As a further improvement of the technology, the fixed cylinder is fixed on the ground through four support legs; the roller rotates in the annular groove A on the inner wall of the fixed cylinder; two bearings are matched between the roller and the fixed cylinder; the motor is arranged on the outer side of the fixed cylinder, a gear B arranged on an output shaft of the motor is meshed with a gear A arranged in a transmission groove of the wall of the fixed cylinder, and the gear A is meshed with a gear ring A arranged on the outer side of the roller.
As a further improvement of the technology, the gear C installed on the hard tube B is meshed with a gear ring B installed on the inner wall of the roller. The diameter ratio of the gear C to the gear ring B is equal to the diameter ratio of the maximum circle where the three coating mechanisms are located to the roller, the linear speed of the three coating mechanisms rotating around the hard tube B is equal to the linear speed of the roller, and therefore it is guaranteed that each coating mechanism is located between any two adjacent stirring plates on the inner wall of the roller all the time after entering the medicine particles and cannot interfere with the stirring plates.
As a further improvement of the technology, a hard tube A which is rotationally matched with a hard tube B is arranged in a circular groove A on the end surface of the fixed cylinder, and the hard tube A is communicated with a liquid pump placed in the fluid coating material through a hose; and a rotary sealing ring matched with the hard pipe B is arranged in the ring groove B on the inner wall of the hard pipe A. The stirring board of a plurality of stirring medicine granules is evenly installed to the internal week of cylinder, and has the interval between stirring board both ends and plectane and the cylinder end wall, can leak down from the gap at stirring board both ends when guaranteeing that the medicine granule in the cylinder is driven the stirring by the stirring board to the realization is to the effective stirring of medicine granule, makes the capsule of medicine granule even more quick. The circular plate is connected with the fixed cylinder through the fixed column; the tail end of the hard tube B is provided with a column block, a circular groove C in the middle of the end face of the column block is communicated with the hard tube B, and three liquid through grooves A communicated with the outer side of the circular groove C are uniformly distributed on the inner wall of the circular groove C in the circumferential direction. The column block can weaken the strength reduction of the hard pipe B caused by installing three arm rods communicated with the hard pipe B. The three arm rods are respectively arranged at the notches of the three liquid passing grooves A on the outer side of the column block; a clamping block B is arranged in the annular groove C on the outer side of the ring sleeve A, and the clamping block B is matched with the clamping block A on the inner wall of the ring sleeve B.
As a further improvement of the technology, the square sleeve is communicated with a liquid passing groove B on the side wall of the cantilever, and a sealing plate for shielding the corresponding sliding groove A and the sliding groove C is arranged on the square sleeve, so that the interference of medicine particles entering the shell B through the sliding groove A and the sliding groove C to the movement of the valve block is avoided. The volute spring is positioned in the annular groove D on the inner wall of the ring sleeve B; one end of the volute spring is connected with the ring sleeve A, and the other end of the volute spring is connected with the inner wall of the ring groove D; the ejector rod slides in a sliding groove D on the side wall of the shell B; one end of the driving rod is provided with a limiting plate for limiting the sliding amplitude of the driving rod; the spring B and the spring A are both compression springs; one end of the spring A is connected with the inner wall of the corresponding shell B, and the other end of the spring A is connected with the corresponding valve block; one end of the spring B is connected with a pressure spring ring arranged on the driving rod, and the other end of the spring B is connected with the end face of the shell A.
As a further improvement of the technology, the shell A is provided with an arc surface A and an arc surface B which reduce the resistance received by the shell A when the shell A enters the medicine particles, and the shell A is provided with an arc surface C which prevents the medicine particles from entering the shell A in motion through an opening of the shell A by draining the medicine particles; resistance increasing plates for increasing the resistance to the movement of the drug particles are respectively arranged at the two ends of the opening of the shell A.
As a further improvement of the technology, the tail end of the inner wall of the spray pipe is provided with an annular conical surface, and conical blocks with the same taper and the same central axis are installed in the conical surface through four fixed rods which are uniformly distributed in the circumferential direction. A gap is formed between the conical block and the conical surface at the tail end of the spray pipe, so that the coating material sprayed out of the spray pipe is atomized and sprayed to the medicine particles at the opening of the shell A in a larger area, and the coating efficiency of the medicine particles is improved.
Compared with the traditional medicine granule coating equipment, the coating mechanism quickly and uniformly coats the medicine granules from the inner parts of the medicine granules after the medicine granules enter the roller without blockage, and the opening of the shell A in the coating mechanism is matched with the guide groove on the circular plate after being separated from the medicine granules and continuously sprays coating materials to the lower medicine granules downwards, so that the coating process of the coating mechanism is realized from the inner parts and the outer parts of the medicine granules in the moving process of the coating mechanism around the hard tube B, and the coating efficiency of the medicine granules is improved.
The invention has simple structure and better use effect.
Drawings
Fig. 1 is an overall schematic view of the present invention from two perspectives.
Fig. 2 is an overall sectional view of the present invention.
Fig. 3 is a schematic cross-sectional view of the drive fit of the present invention.
FIG. 4 is a schematic cross-sectional view of the coating mechanism in cooperation with a stirring plate in the drum.
FIG. 5 is a schematic cross-sectional view of the guide pin of the coating mechanism cooperating with the guide groove of the circular plate.
Fig. 6 is a schematic sectional view of the fixing cylinder and the hard tube A.
Figure 7 is a schematic cross-sectional view of a roll and a cross-sectional view thereof.
Fig. 8 is a schematic view of the combination of a column block and an arm rod with three coating mechanisms.
Fig. 9 is a cross-sectional view of the ring A on the arm bar and the ring B in the enrobing mechanism from two different perspectives.
FIG. 10 is a schematic view of a coating mechanism.
FIG. 11 is a schematic cross-sectional view of the valve block, the plunger and the driving rod of the enrobing mechanism.
FIG. 12 is a cross-sectional view of the casing A, the cantilever, the square sleeve, the valve block, the casing B and the nozzle in the coating mechanism.
Fig. 13 is a schematic view of the housing a.
FIG. 14 is a schematic view of the drive rod, cantilever and ram.
Fig. 15 is a schematic sectional view of the housing B.
FIG. 16 is a schematic cross-sectional view of a nozzle and its associated components.
Figure 17 is a schematic cross-sectional view of the engagement of the post block, arm and collar a.
Fig. 18 is a schematic view of a circular plate.
Number designation in the figures: 1. a support leg; 2. a fixed cylinder; 3. a ring groove A; 4. a circular groove A; 5. a transmission groove; 6. a drum; 7. a feed inlet; 8. a stirring plate; 9. a bearing; 10. a gear ring A; 11. a gear A; 12. a gear B; 13. a motor; 14. a circular plate; 15. a circular groove B; 16. a guide groove; 17. a movable groove; 18. an inclined plane A; 19. fixing a column; 20. a hard tube A; 21. a ring groove B; 22. a hose; 23. a liquid pump; 24. rotating the seal ring; 25. a hard tube B; 26. a gear C; 27. a ring gear B; 28. a column block; 29. a circular groove C; 30. a liquid introducing groove A; 31. an arm lever; 32. a ring sleeve A; 33. a ring groove C; 34. a coating mechanism; 35. a cantilever; 36. a liquid introducing groove B; 37. a ring sleeve B; 38. a ring groove D; 39. a volute spring; 40. a clamping block A; 41. a clamping block B; 42. a shell A; 43. an arc surface A; 44. an arc surface B; 45. a cambered surface C; 46. a chute A; 47. a chute B; 48. a resistance increasing plate; 49. a housing B; 50. a chute C; 51. a liquid introducing groove C; 52. a chute D; 53. a valve block; 54. a liquid introducing groove D; 55. a spring A; 56. a nozzle; 57. a conical surface; 58. a fixing rod; 59. a conical block; 60. a square sleeve; 61. a sealing plate; 62. a top rod; 63. a bevel B; 64. a drive rod; 65. a drive slot; 66. a bevel C; 67. a spring B; 68. a limiting plate; 69. a compression spring ring; 70. a guide pin.
Detailed Description
The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.
As shown in fig. 1, 2 and 3, it comprises a fixed cylinder 2, a roller 6, a motor 13, a circular plate 14, a hard tube B25, an arm rod 31, a ring sleeve a32 and a coating mechanism 34, wherein as shown in fig. 3, 6 and 7, the fixed cylinder 2 with one open end is rotationally matched with the roller 6 which is used for containing medicine particles and is driven by the motor 13, and the middle part of the end surface of the roller 6 is provided with a feed inlet 7; as shown in fig. 2, 3 and 5, a circular plate 14 fixed in the fixed cylinder 2 and rotatably engaged with the inner wall of the drum 6 has a circular groove B15, and the central axis of the circular groove B15 is positioned right below the central axis of the drum 6; a hard pipe B25 which is communicated with a liquid pump 23 placed in the fluid coating material and is driven by the roller 6 is rotationally matched in the round groove B15; as shown in fig. 3, 8 and 9, three hollow arm rods 31 communicated with the hard tube B25 are uniformly arranged on the hard tube B25 in the circumferential direction; the tail end of each arm rod 31 is provided with a ring sleeve A32, the central axis of which is parallel to the hard pipe B25 and is communicated with the arm rod 31, and a coating mechanism 34 is rotatably matched on the ring sleeve A32.
As shown in fig. 10, 11 and 12, the coating mechanism 34 includes a cantilever 35, a ring sleeve B37, a volute spring 39, a housing a42, a housing B49, a valve block 53, a spring a55, a nozzle 56, a square sleeve 60, a push rod 62, a driving rod 64, a spring B67 and a guide pin 70, wherein as shown in fig. 10, 11 and 13, three housings B49 are uniformly installed in the housing a42 with one side open along the length direction thereof; as shown in fig. 11, 12 and 15, a valve block 53 for opening and closing a liquid passing groove C51 at the bottom of the shell B49 is hermetically slid in each shell B49 along the direction vertical to the length of the shell B49, a spring a55 for returning the valve block 53 is arranged, and a square sleeve 60 arranged at a liquid passing groove D54 on the valve block 53 is movably arranged in a chute a46 at the top of the shell a42 and a chute C50 at the top of the shell B49; a spray pipe 56 for spraying coating materials to the opening of the shell A42 is arranged at the liquid through groove C51 on each shell B49; the three square sleeves 60 are communicated through the hollow cantilever 35 communicated with the three square sleeves; as shown in fig. 9 and 10, one end of the cantilever 35 parallel to the hard tube B25 is provided with a ring sleeve B37 which is in sealed and rotating fit with the corresponding ring sleeve a 32; a volute spring 39 which is used for relatively rotating and resetting the ring sleeve B37 and the ring sleeve A32 and is always in a compression state is arranged between the ring sleeve B37 and the ring sleeve A32; as shown in fig. 11 and 13, the slide grooves B47 at the two ends of the housing a42 are internally provided with driving rods 64 in a sliding manner along the length direction thereof, and the driving rods 64 are nested with springs B67 for resetting the driving rods; as shown in fig. 5, 11 and 18, the guide pin 70 installed at the end of the driving rod 64 is engaged with the guide groove 16 and the movable groove 17 of the circular plate 14 which are communicated with each other and the inclined surface a18 at the notch of the guide groove 16; as shown in fig. 11 and 14, the driving rod 64 has three driving grooves 65 which are correspondingly engaged with the push rods 62 mounted on the valve block 53, and the inclined surface C66 of each driving groove 65 is engaged with the inclined surface B63 of the end of the corresponding push rod 62.
As shown in fig. 1, 2 and 3, the fixed cylinder 2 is fixed on the ground through four support legs 1; the roller 6 rotates in the annular groove A3 on the inner wall of the fixed cylinder 2; two bearings 9 are matched between the roller 6 and the fixed cylinder 2; the motor 13 is arranged outside the fixed cylinder 2, a gear B12 arranged on an output shaft of the motor 13 is meshed with a gear A11 arranged in a transmission groove 5 on the cylinder wall of the fixed cylinder 2, and the gear A11 is meshed with a gear ring A10 arranged outside the roller 6.
As shown in fig. 3 and 4, the gear C26 mounted on the hard tube B25 is engaged with a ring gear B27 mounted on the inner wall of the drum 6. The diameter ratio of the gear C26 to the gear ring B27 is equal to the diameter ratio of the maximum circle where the three coating mechanisms 34 are located to the drum 6, so that the linear speed of the three coating mechanisms 34 rotating around the hard tube B25 is equal to the linear speed of the drum 6, and further, each coating mechanism 34 is always located between any two adjacent stirring plates 8 on the inner wall of the drum 6 after entering the medicine particles and cannot interfere with the stirring plates 8.
As shown in fig. 2, 3 and 6, a hard tube a20 which is rotatably matched with a hard tube B25 is arranged in a circular groove A4 on the end surface of the fixed cylinder 2, and the hard tube a20 is communicated with a liquid pump 23 placed in the fluid coating material through a hose 22; a rotary sealing ring 24 matched with a hard pipe B25 is arranged in the ring groove B21 on the inner wall of the hard pipe A20. As shown in fig. 3, 4 and 7, a plurality of stirring plates 8 for stirring the medicine particles are uniformly arranged in the circumferential direction of the roller 6, and the two ends of each stirring plate 8 are spaced from the end walls of the circular plate 14 and the roller 6, so that the medicine particles in the roller 6 can be prevented from leaking from the gaps at the two ends of each stirring plate 8 when being driven by the stirring plates 8 to be stirred, and the effective stirring of the medicine particles is realized, and the coating of the medicine particles is more uniform and rapid. As shown in fig. 2, the circular plate 14 is connected to the fixed cylinder 2 via a fixed post 19; as shown in fig. 3, 8 and 17, a column block 28 is mounted at the tail end of the hard tube B25, a circular groove C29 in the middle of the end face of the column block 28 is communicated with the hard tube B25, and three liquid passing grooves a30 communicated with the outer side of the circular groove C29 are uniformly distributed on the inner wall of the circular groove C29 in the circumferential direction. The stud 28 can weaken the strength of the hard tube B25 by attaching three arms 31 in communication therewith. The three arm levers 31 are respectively arranged at the notches of the three liquid passing grooves A30 on the outer side of the column block 28; as shown in fig. 9 and 17, a latch B41 is mounted in the annular groove C33 on the outer side of the ring a32, and the latch B41 is engaged with the latch a40 on the inner wall of the ring B37.
As shown in fig. 12 and 14, the square sleeve 60 is communicated with the liquid through groove B36 on the side wall of the cantilever 35, and a sealing plate 61 for shielding the corresponding chute a46 and chute C50 is mounted on the square sleeve 60, so as to prevent the medicine particles from entering the housing B49 through the chute a46 and the chute C50 and interfering with the movement of the valve block 53. As shown in fig. 9 and 14, the volute spring 39 is positioned in the annular groove D38 on the inner wall of the ring sleeve B37; one end of the volute spring 39 is connected with the ring sleeve A32, and the other end of the volute spring is connected with the inner wall of the annular groove D38; as shown in fig. 11 and 15, the push rod 62 slides in the sliding groove D52 on the side wall of the housing B49; a limit plate 68 for limiting the sliding amplitude is arranged at one end of the driving rod 64; the spring B67 and the spring A55 are both compression springs; one end of the spring A55 is connected with the inner wall of the corresponding shell B49, and the other end is connected with the corresponding valve block 53; the spring B67 has one end connected to a compression spring ring 69 mounted on the drive rod 64 and the other end connected to an end face of the housing a 42.
As shown in fig. 13, the housing a42 has an arc a43 and an arc B44 for reducing resistance to the drug particles when entering into the housing a42, and the housing a42 has an arc C45 for preventing the drug particles from entering the moving housing a42 through the opening of the housing a42 by draining the drug particles; as shown in fig. 10, resistance increasing plates 48 are respectively installed at both open ends of the housing a42 to increase resistance against movement thereof in the drug particles.
As shown in fig. 16, the end of the inner wall of the nozzle 56 has an annular conical surface 57, and a conical block 59 with the same taper and the same central axis is mounted in the conical surface 57 through four fixing rods 58 which are uniformly distributed in the circumferential direction. The conical block 59 and the conical surface 57 at the end of the spray pipe 56 have a gap therebetween, so that the coating material sprayed from the spray pipe 56 is atomized and sprayed onto the drug particles at the opening of the shell A42 in a larger area, and the coating efficiency of the drug particles is improved.
The motor 13 in the present invention is a related art reduction motor 13.
The liquid pump 23 of the present invention is of the prior art.
The working process of the invention is as follows: in the initial state, part of the coating mechanism 34 is located in the space of the drum 6 where the drug particles are accommodated, and part of the coating mechanism 34 is located above the space of the drum 6 where the drug particles are accommodated. The guide pin 70 of the coating mechanism 34 located above the portion of the drum 6 containing the drug particles is located in the guide groove 16 of the circular plate 14, and the opening of the housing a42 of the coating mechanism 34 located above the drug particle containing space is faced downward to the drug particles below by the interaction of the driving groove 65 and the push rod 62 on the driving rod 64, and the relative positions of the valve block 53 to the housing a42 and the housing B49 are in the limit state. The liquid passing groove D54 of the valve block 53 in the coating mechanism 34 located above the space for accommodating the medicine particles in the drum 6 is just opposite to the liquid passing groove C51 on the corresponding housing B49, and the liquid passing groove D54 is in an open state. The liquid passing groove D54 of the valve block 53 in the coating mechanism 34 located in the medicine particle accommodating space does not oppose the liquid passing groove C51 on the corresponding housing B49, and the liquid passing groove D54 is in a closed state. Spring a55 and spring B67 in each enrobing mechanism 34 are under compression. The guide pins 70 of the coating mechanism 34 located in the medicament particle receiving space abut against the movable grooves 17 on the circular plate 14. The inclined surface B63 of each plunger 62 of each coating mechanism 34 abuts against the inclined surface C66 of the corresponding driving groove 65 of the driving rod 64. The volute spring 39 of each coating mechanism 34 is under compression, and the guide pin 70 is located in the guide slot 16 and the fixture block A40 and the fixture block B41 of the coating mechanism 34 are separated.
The motor 13 is started firstly, the motor 13 drives the roller 6 to rotate relative to the fixed cylinder 2 through the gear B12, the gear A11 and the gear ring A10, after the roller 6 rotates and operates stably, medicine particles are put into the roller 6 through the feed inlet 7, the coating mechanism 34 is prevented from interfering interaction between the driving rod 64 and the ejector rod 62 when the medicine particles enter the shell A42 due to the fact that the medicine particles are static in the medicine particles, and meanwhile the medicine particles are prevented from blocking the spray pipe 56 when entering the shell A42. The rotating drum 6 drives the medicine particles to turn and stir through the stirring plate 8 on the inner wall of the drum. At the same time, the drum 6 drives the hard tube B25 to rotate relative to the circular plate 14 and the hard tube a20 through the gear ring B27 and the gear C26, and the hard tube B25 drives the three coating mechanisms 34 to rotate around the hard tube B25 through the column block 28 and the three arms 31. Since the diameter ratio of the gear C26 to the gear ring B27 is equal to the diameter ratio of the maximum circle where the three coating mechanisms 34 are located to the drum 6, the linear speed of the three coating mechanisms 34 rotating around the hard tube B25 is equal to the linear speed of the drum 6, so as to ensure that each coating mechanism 34 is always located between any two adjacent stirring plates 8 on the inner wall of the drum 6 after entering the drug particles and does not interfere with the stirring plates 8.
While the coating mechanism 34 located in the drug particles moves around the hard tube B25, the resistance increasing plates 48 at the two ends of the housing a42 and the housing a42 interact with the drug particles and under the resistance of the drug particles, the housing a42 drives the corresponding three housings B49 to move relative to the valve block 53 in the direction perpendicular to the corresponding arm 31 and the hard tube B25, the housing a42 moves to the limit instantaneously relative to the valve block 53, the spring a55 in each housing B49 is further compressed to the limit, the liquid passing groove D54 on each valve block 53 is just opposite to the liquid passing groove C51 on the corresponding housing B49, and the liquid passing groove C51 on each housing B49 is in an open state instantaneously.
After enough drug particles are added into the drum 6, the liquid pump 23 is started, the liquid pump 23 pumps liquid coating materials into the square sleeve 60 in each coating mechanism 34 through the hose 22, the hard pipe A20, the hard pipe B25, the column block 28, the three arm rods 31 and the cantilever 35, the coating materials entering the square sleeve 60 enter the spray pipe 56 through the liquid through groove D54 opened on the corresponding valve block 53 and the liquid through groove C51 on the corresponding shell B49, and the coating materials entering the spray pipe 56 are drained through the conical block 59 at the tail end of the spray pipe 56 to form coating material spray and carry out efficient and uniform coating on the drug particles flowing through the opening of the shell A42. Due to the arc surface C45 on the housing a42, the drug particles guided by the arc surface C45 during the movement of the housing a42 in the drug particles move away from the opening of the housing a42 without entering the housing a42 to block the nozzle 56.
The coating mechanism 34 above the drug particles is positioned in the guide groove 16 due to the guide pin 70, so that during the rotation of the coating mechanism 34 above the drug particles around the hard tube B25, the opening of the shell a42 of the coating mechanism 34 above the drug particles is continuously downward opposite to the drug particles, the nozzle of the nozzle 56 is continuously opposite to the drug particles, the coating material pumped by the liquid pump 23 is atomized and sprayed onto the drug particles below through the nozzle 56, the drug particles are coated from the inside by the partial coating mechanism 34 and are coated from the top by the partial coating mechanism 34, and the drug particles can be uniformly coated efficiently and quickly along with the rotation of the drum 6 and the stirring of the stirring plate 8.
When the resistance increasing plate 48 on the coating mechanism 34 located in the drug granules just leaves the drug granules, since the resistance of the casing a42 on the coating mechanism 34 from the drug granules disappears, the casing a42 drives the three casings B49 to instantaneously reset relative to the three valve blocks 53 under the resetting action of the three springs a55, the liquid through groove C51 on the casing B49 is instantaneously closed by the valve blocks 53, and the spray pipe 56 does not spray the coating material outwards any more.
During the horizontal movement of the coating means 34 located in the drug granules away from the drug granules and towards the corresponding arm 31, the opening of the housing a42 of the coating means 34 is always facing the drug granules and the nozzle 56 is always spraying the coating material on the drug granules. When the arm 31 on which the coating mechanism 34 is located is horizontal, the guide pin 70 in the coating mechanism 34 starts to enter the guide groove 16 via the inclined surface a 18.
During the process of the guide pin 70 entering the guide slot 16 through the inclined surface a18, the guide pin 70 will drive the driving rod 64 to slide in the sliding slot B47 of the housing a42, and the spring B67 will be further compressed. The inclined surface C66 of the driving groove 65 on the driving rod 64 drives the valve block 53 to move in the corresponding housing B49 through the corresponding mandril 62, the liquid through groove D54 on the valve block 53 is gradually opposite to the liquid through groove C51 on the housing B49, and the liquid through groove C51 on each housing B49 is gradually opened. When the guide pin 70 reaches the guide slot 16, the movement of the driving rod 64 reaches the limit, the valve blocks 53 in the three housings B49 move to the limit, the liquid passing slots D54 on the valve blocks 53 are just opposite to the liquid passing slots C51 on the corresponding housings B49, the liquid passing slots C51 on the housings B49 are completely opened, and the spraying pipe 56 continues to spray the coating material toward the medicine particles below.
As the coating mechanism 34 continues to move, the guide pin 70 in the coating mechanism 34 drives the housing a42 to rotate around the ring sleeve a32 on the corresponding arm 31 under the guidance of the guide slot 16, the corresponding volute spring 39 is further compressed, the latch a40 and the latch B41 start to separate, so that the housing a42 always keeps the state of opening downwards, and the three nozzles 56 in the housing a42 always spray the coating material to the medicine particles from the upper direction.
When the guide pin 70 in the coating mechanism 34 is disengaged from the guide groove 16 with the continuous movement of the coating mechanism 34 around the hard tube B25, the coating mechanism 34 is returned back around the ring sleeve a32 on the corresponding arm 31 under the returning action of the corresponding volute spring 39, and the latch a40 is again abutted against the latch B41, since the guide pin 70 on the coating mechanism 34 is disengaged from the restriction of the guide groove 16. At the same time, the driving rod 64 in the coating mechanism 34 is instantaneously reset relative to the housing a42 under the reset action of the corresponding spring B67, and the driving rod 64 drives the guide pin 70 to abut against the inner wall of the movable groove 17 again. The three valve blocks 53 are reset in the shell B49 instantly under the reset action of the corresponding springs A55 along with the release of the pressing limitation of the inclined surface C66 in the driving groove 65 borne by the push rod 62, the liquid through groove C51 on the shell B49 is closed instantly, the spray pipe 56 is not used for spraying the coating mechanism 34 outwards any more, the coating mechanism 34 is prevented from driving the spray pipe 56 to spray the coating material to the part without the medicine particles in the roller 6 in the rotary reset process under the action of the volute spring 39, and the waste of the coating material is avoided.
When the tip formed by the arc surface a43 and the arc surface B44 on the housing a42 in the coating mechanism 34 enters the drug granules, the housing a42 in the coating mechanism 34 initially receives little resistance from the drug granules and does not sufficiently generate relative movement with respect to the three valve blocks 53 against the action of the three springs a55 due to the presence of the arc surface a43 and the arc surface B44. When the resistance increasing plates 48 at the two ends of the shell A42 in the coating mechanism 34 begin to enter the medicine particles, the resistance applied to the shell A42 increases instantaneously and begins to move relative to the three valve blocks 53 against the elastic force of the three springs A55, at this time, the openings of the shell A42 also enter the medicine particles basically, the liquid through grooves C51 on the three shells B49 are opened along with the movement of the shell A42 relative to the three valve blocks 53, and the three spray pipes 56 drain the medicine particles from the interior of the medicine particles to the medicine particles which pass through the upper cambered surface C45 of the shell A42 and pass through the openings of the shell A42, so that the coating material is uniformly and efficiently sprayed.
The coating mechanism 34 is rotated in such a manner as to reciprocally spray the coating material onto the drug granules from the inside and outside thereof, thereby improving the coating efficiency of the drug granules. After the medicine particles are completely and uniformly coated, the medicine particles are discharged through a specific discharge hole at the bottom of the roller 6, and then the operation of the motor 13 is stopped, so that the situation that the medicine particles enter the shell A42 to block the spray pipe 56 or block the driving groove 65 on the driving rod 64 due to the stopping of the movement of the coating mechanism 34 in the medicine particles can be avoided.
In conclusion, the beneficial effects of the invention are as follows: after the coating mechanism 34 enters the drug particles in the roller 6, the drug particles are quickly and uniformly coated from the interior of the drug particles without blockage, and the opening of the shell A42 in the coating mechanism 34 is matched with the guide groove 16 on the circular plate 14 after being separated from the drug particles, so that the coating material is continuously sprayed to the drug particles below downwards, the coating process of the drug particles from the interior and the exterior of the drug particles is realized in the process that the coating mechanism 34 moves around the hard tube B25, and the coating efficiency of the drug particles is improved.

Claims (5)

1. A coating machine for internally and externally mixing medicine particles is characterized in that: the device comprises a fixed cylinder, a roller, a motor, a circular plate, a hard tube B, an arm rod, a ring sleeve A and a coating mechanism, wherein the fixed cylinder with an opening at one end is rotationally matched with the roller which is used for containing medicine particles and is driven by the motor, and the middle part of the end surface of the roller is provided with a feed inlet; a circular plate which is fixed in the fixed cylinder and is rotationally matched with the inner wall of the roller is provided with a circular groove B, and the central axis of the circular groove B is positioned right below the central axis of the roller; a hard tube B which is communicated with a liquid pump placed in the fluid coating material and is driven by a roller is rotationally matched in the round groove B; three hollow arm rods communicated with the hard tube B are uniformly arranged on the hard tube B in the circumferential direction; the tail end of each arm rod is provided with a ring sleeve A, the central axis of which is parallel to the hard tube B and is communicated with the arm rod, and a coating mechanism is rotationally matched on the ring sleeve A;
the coating mechanism comprises a cantilever, a ring sleeve B, a volute spring, a shell A, a shell B, a valve block, a spring A, a spray pipe, a square sleeve, a push rod, a driving rod, a spring B and a guide pin, wherein the shell A with an opening at one side is uniformly provided with the three shells B along the length direction thereof, the inside of each shell B is hermetically and slidably provided with the valve block for opening and closing a liquid through groove C at the bottom of the shell B and the spring A for resetting the valve block along the direction vertical to the length of the shell, and the square sleeve arranged at the liquid through groove D on the valve block is movably arranged in a chute A at the top of the shell A and a chute C at the top of the shell B; a spray pipe for spraying coating materials to the opening of the shell A is arranged at the liquid through groove C on each shell B; the three square sleeves are communicated through hollow cantilevers communicated with the three square sleeves; one end of the cantilever parallel to the hard tube B is provided with a ring sleeve B which is in sealed rotary fit with the corresponding ring sleeve A; a volute spring which is used for relatively rotating and resetting the ring sleeve B and the ring sleeve A and is always in a compression state is arranged between the ring sleeve B and the ring sleeve A; a driving rod slides in the sliding grooves B at the two ends of the shell A along the length direction of the shell A, and a spring B for resetting the driving rod is nested on the driving rod; the guide pin arranged at the tail end of the drive rod is matched with the guide groove and the movable groove which are mutually communicated on the circular plate and the inclined plane A at the notch of the guide groove; the driving rod is provided with three driving grooves which are correspondingly matched with the mandrils arranged on the valve block one by one, and the inclined plane C of each driving groove is matched with the inclined plane B at the tail end of the corresponding mandrils;
the gear C arranged on the hard tube B is meshed with a gear ring B arranged on the inner wall of the roller; the diameter ratio of the gear C to the gear ring B is equal to the diameter ratio of the maximum circle where the three coating mechanisms are located to the roller;
a hard tube A which is rotationally matched with the hard tube B is arranged in the circular groove A on the end surface of the fixed cylinder, and the hard tube A is communicated with a liquid pump placed in the fluid coating material through a hose; a rotary sealing ring matched with the hard pipe B is arranged in the ring groove B on the inner wall of the hard pipe A; a plurality of stirring plates for stirring medicine particles are uniformly arranged in the inner circumference of the roller, and a space is reserved between the two ends of each stirring plate and the circular plate as well as the end wall of the roller; the circular plate is connected with the fixed cylinder through the fixed column; the tail end of the hard tube B is provided with a column block, a circular groove C in the middle of the end face of the column block is communicated with the hard tube B, and three liquid through grooves A communicated with the outer side of the circular groove C are uniformly distributed on the inner wall of the circular groove C in the circumferential direction; the three arm rods are respectively arranged at the notches of the three liquid through grooves A on the outer side of the column block; a clamping block B is arranged in the annular groove C on the outer side of the ring sleeve A, and the clamping block B is matched with the clamping block A on the inner wall of the ring sleeve B.
2. The coating machine for internally and externally blended medicine granules according to claim 1, characterized in that: the fixed cylinder is fixed on the ground through four support legs; the roller rotates in the annular groove A on the inner wall of the fixed cylinder; two bearings are matched between the roller and the fixed cylinder; the motor is arranged on the outer side of the fixed cylinder, a gear B arranged on an output shaft of the motor is meshed with a gear A arranged in a transmission groove of the wall of the fixed cylinder, and the gear A is meshed with a gear ring A arranged on the outer side of the roller.
3. The coating machine for internally and externally blended medicine granules according to claim 1, characterized in that: the square sleeve is communicated with a liquid through groove B on the side wall of the cantilever, and a sealing plate for shielding the corresponding sliding groove A and the sliding groove C is arranged on the square sleeve; the volute spring is positioned in the annular groove D on the inner wall of the ring sleeve B; one end of the volute spring is connected with the ring sleeve A, and the other end of the volute spring is connected with the inner wall of the annular groove D; the ejector rod slides in a sliding groove D on the side wall of the shell B; one end of the driving rod is provided with a limiting plate for limiting the sliding amplitude of the driving rod; the spring B and the spring A are both compression springs; one end of the spring A is connected with the inner wall of the corresponding shell B, and the other end of the spring A is connected with the corresponding valve block; one end of the spring B is connected with a pressure spring ring arranged on the driving rod, and the other end of the spring B is connected with the end face of the shell A.
4. The coating machine for internally and externally blended medicine granules according to claim 1, characterized in that: the shell A is provided with an arc surface A and an arc surface B which reduce the resistance of the shell A when the drug particles enter the shell A, and the shell A is provided with an arc surface C which prevents the drug particles from entering the shell A in motion through an opening of the shell A by draining the drug particles; resistance increasing plates for increasing the resistance to the movement of the drug particles are respectively arranged at the two ends of the opening of the shell A.
5. The coating machine for internally and externally blended medicine granules according to claim 1, characterized in that: the tail end of the inner wall of the spray pipe is provided with an annular conical surface, and conical blocks with the same taper and the same central axis are arranged in the conical surface through four fixed rods which are uniformly distributed in the circumferential direction; a gap is formed between the conical block and the conical surface at the tail end of the spray pipe.
CN202111675974.6A 2021-12-31 2021-12-31 Coating machine for internally and externally mixing medicine particles Active CN114288185B (en)

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Application Number Priority Date Filing Date Title
CN202111675974.6A CN114288185B (en) 2021-12-31 2021-12-31 Coating machine for internally and externally mixing medicine particles

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CN114288185B true CN114288185B (en) 2023-04-18

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713257A (en) * 1985-02-19 1987-12-15 Kopperschmidt-Muller GmbH & Co. KG Spraying method and device for applying a film to a workpiece
EP0588054A1 (en) * 1992-09-17 1994-03-23 International Shoe Machine Corporation Method for applying adhesive and coating device
CN202342474U (en) * 2011-11-04 2012-07-25 淄博伊马新华制药设备有限公司 Coating machine spray gun adjusting device
CN208877326U (en) * 2018-07-09 2019-05-21 大连水产药业有限公司 A kind of roller shaping seed-coating machine
CN209405279U (en) * 2018-11-22 2019-09-20 福州法莫优科机械科技有限公司 A kind of seed-coating machine
CN212214205U (en) * 2020-03-10 2020-12-25 辽宁康博士制药有限公司 High-efficiency coating machine
CN212732057U (en) * 2020-06-15 2021-03-19 哈尔滨纳诺机械设备有限公司 Flowing layer coating machine
CN213529230U (en) * 2020-08-19 2021-06-25 湖南楚天华兴智能装备有限公司 Spray gun adjusting device of coating machine and coating machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713257A (en) * 1985-02-19 1987-12-15 Kopperschmidt-Muller GmbH & Co. KG Spraying method and device for applying a film to a workpiece
EP0588054A1 (en) * 1992-09-17 1994-03-23 International Shoe Machine Corporation Method for applying adhesive and coating device
CN202342474U (en) * 2011-11-04 2012-07-25 淄博伊马新华制药设备有限公司 Coating machine spray gun adjusting device
CN208877326U (en) * 2018-07-09 2019-05-21 大连水产药业有限公司 A kind of roller shaping seed-coating machine
CN209405279U (en) * 2018-11-22 2019-09-20 福州法莫优科机械科技有限公司 A kind of seed-coating machine
CN212214205U (en) * 2020-03-10 2020-12-25 辽宁康博士制药有限公司 High-efficiency coating machine
CN212732057U (en) * 2020-06-15 2021-03-19 哈尔滨纳诺机械设备有限公司 Flowing layer coating machine
CN213529230U (en) * 2020-08-19 2021-06-25 湖南楚天华兴智能装备有限公司 Spray gun adjusting device of coating machine and coating machine

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Address after: No. 28, Chunfeng Road, economic and Technological Development Zone, Yuanzhou District, Yichun City, Jiangxi Province

Patentee after: Yichun Wanshen Intelligent Equipment Co.,Ltd.

Address before: No. 28, Chunfeng Road, economic and Technological Development Zone, Yuanzhou District, Yichun City, Jiangxi Province

Patentee before: YICHUN WANSHEN PHARMACEUTICAL MACHINERY Co.,Ltd.

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