CN114306075B - Coating equipment for fully mixing medicine granules - Google Patents
Coating equipment for fully mixing medicine granules Download PDFInfo
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- CN114306075B CN114306075B CN202111671165.8A CN202111671165A CN114306075B CN 114306075 B CN114306075 B CN 114306075B CN 202111671165 A CN202111671165 A CN 202111671165A CN 114306075 B CN114306075 B CN 114306075B
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- hard tube
- fixed cylinder
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- 239000003814 drug Substances 0.000 title claims abstract description 116
- 239000011248 coating agent Substances 0.000 title claims abstract description 113
- 238000000576 coating method Methods 0.000 title claims abstract description 113
- 239000008187 granular material Substances 0.000 title claims abstract description 43
- 239000002245 particle Substances 0.000 claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 239000007921 spray Substances 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000005507 spraying Methods 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims description 23
- 230000033001 locomotion Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 229940079593 drug Drugs 0.000 abstract description 40
- 238000005516 engineering process Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 239000000843 powder Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003826 tablet Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000008298 dragée Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000007940 sugar coated tablet Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse 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
Abstract
The invention belongs to the field of medicine granule coating, and particularly relates to coating equipment for fully mixing medicine granules, which comprises a fixed cylinder, a rotary drum, a motor, a circular plate, a liquid pump, a hard tube B, an arm rod, a cantilever, a coating mechanism, a hard tube C and a spray head, wherein the rotary drum is driven by the motor, and the middle part of the end surface of the rotary drum is provided with a feed inlet and rotates in the fixed cylinder with an opening at one end; the three groups of coating mechanisms alternately enter and exit the drug particles in the roller at high frequency and spray coating materials to the drug particles in the drug particles, so that the coating efficiency of the drug particles is effectively improved. Meanwhile, the two spray heads positioned above the medicine particles spray coating materials outside the medicine particles, so that the coating efficiency of the medicine particles is further improved.
Description
Technical Field
The invention belongs to the field of medicine granule coating, and particularly relates to coating equipment for fully mixing medicine granules.
Background
The medicine coating machine rotates clockwise via the pan body to roll, slide and rub sugar-coated tablets in the pan, and splashes sugar-coated powder by hands to distribute the sugar-coated powder evenly on all plain tablets, and is accompanied with an electric heating blower randomly, an air outlet pipe stretches into the ball to heat, and the blower blows hot air to the pan inner layer to remove water on the surface of the tablets, thereby obtaining the rigor sugar-coated tablets. The production of powder-coated layers and the like often employs a slurry mixing process, i.e., dusting powder is suspended in a binder solution and sprayed into a rotating tablet, which can reduce dust and simplify the process.
The spray head used for spraying the coating material on the medicine particles in the existing coating machine is positioned above the medicine particles, the pot body needs to rotate for a long time to uniformly coat all the medicine particles, and the efficiency is low. Even if the spray head is buried in the medicine granules to coat and spray the medicine granules, the spray head can not effectively and uniformly spray the medicine granules due to the surrounding of the medicine granules.
The invention designs a coating device for fully mixing medicine granules to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses coating equipment for fully mixing medicine granules, 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 device for fully mixing medicine particles comprises a fixed cylinder, a rotary drum, a motor, a circular plate, a liquid pump, a hard tube B, an arm rod, a cantilever, a coating mechanism, a hard tube C and a spray head, wherein the rotary drum which is driven by the motor and provided with a feed inlet in the middle of the end face rotates in the fixed cylinder with an opening at one end; a circular plate fixed in the fixed cylinder and rotationally matched with the inner wall of the roller is provided with a circular groove B, and a hard tube B which is communicated with a liquid pump placed in the fluid coating material and is driven by the roller to rotate in the same direction as the roller is rotationally matched in the circular 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 hollow cantilever communicated with the arm rod; three coating mechanisms are uniformly installed on each cantilever at intervals along the length direction of the cantilever; two spray heads for spraying coating materials from the upper part of the medicine particles are arranged on a hard tube C which is fixed on the fixed cylinder and extends into the roller from the feed inlet, and each spray head is provided with a regulating valve for regulating the flow of the spray head.
The coating mechanism comprises a shell A, a shell B, a valve block, a return spring, a square tube and a spray tube, wherein the shell A with one open end is internally provided with the shell B, the interior of the shell B is hermetically and slidably provided with the valve block for opening and closing a liquid through groove C at the top of the shell B along the direction vertical to the hard tube B and a corresponding arm rod, the return spring for returning the valve block is arranged in the shell B, and the square tube arranged at the liquid through groove D on the valve block is movably arranged in a chute A at the bottom of the shell A and a chute B at the bottom of the shell B; a liquid through groove C at the top of each shell B is provided with a spray pipe for spraying coating materials to the opening of the shell A; the square tube is communicated with a liquid through groove B on the corresponding cantilever.
As a further improvement of the technology, the central axis of the hard tube B is positioned right below the central axis of the roller, so that the frequency of spraying coating materials on the medicine particles from the inside after the coating mechanism enters the medicine particles is increased, and the coating efficiency of the coating mechanism on the medicine particles is increased.
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, 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; a rotary sealing ring matched with the hard pipe B is arranged in the annular groove B on the inner wall of the hard pipe A; six spiral stirring boards with the same central axis of cylinder are evenly installed to the internal week of cylinder, and have the interval between stirring board both ends and plectane and the cylinder end wall, can follow the gap at stirring board both ends and leak down 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 end wall of 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 cantilever, 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 through grooves A on the outer side of the column block; the hard tube C is arranged on a support on the fixed cylinder; the two spray heads are respectively and movably arranged in the axial clearance of the three coating mechanisms on each cantilever. The square tube is provided with a sealing plate for shielding the corresponding chute A and chute B, so that the interference of the medicine particles in the chute A and the chute B entering the shell B to the movement of the valve block is avoided.
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 and the gear ring B is equal to the diameter ratio of a circle where the three cantilevers are located and the roller, the linear speed of the three groups of 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, the tail end of the inner wall of the spray pipe is provided with an annular square conical surface, and square conical blocks with the same taper and the same central axis are installed in the square conical surface through four fixed rods which are uniformly distributed in the circumferential direction; a gap is formed between the square cone block and the square cone 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.
As a further improvement of the technology, the front end of 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; the bottom of the shell A near the opening is provided with an increasing resistance plate which increases the resistance to the movement of the shell A in the medicine particles.
Compared with the traditional medicine granule coating equipment, the three groups of coating mechanisms alternately enter and exit the medicine granules in the roller at high frequency and spray coating materials to the medicine granules in the medicine granules, so that the coating efficiency of the medicine granules is effectively improved. Meanwhile, the two spray heads positioned above the medicine particles spray coating materials outside the medicine particles, so that the coating efficiency of the medicine particles is further 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 two schematic cross-sectional views of the present invention.
Fig. 3 is a schematic cross-sectional view of the drive fit of the present invention.
Fig. 4 is a partial cross-sectional schematic view of the drive fit.
FIG. 5 is a schematic sectional view of the fixed cylinder and the circular plate.
Fig. 6 is a schematic sectional view of a rigid pipe a.
Fig. 7 is a schematic cross-sectional view of the drum and its components.
Fig. 8 is a schematic view of the combination of the column block, arm and coating mechanism from two perspectives.
FIG. 9 is a cross-sectional view of the combination of the post block, arm bar, and arm and coating mechanism.
FIG. 10 is a cross-sectional view of the coating mechanism in cooperation with the cantilever.
FIG. 11 is a schematic view of a cantilever and a post block.
FIG. 12 is a schematic view of a coating mechanism.
Fig. 13 is a sectional view of the case a and the case B.
FIG. 14 is a schematic view of a nozzle and a pyramid block.
Number designation in the figures: 1. a support leg; 2. a fixed cylinder; 3. a circular groove A; 4. a ring groove A; 5. a transmission groove; 6. a drum; 7. a feed inlet; 8. a support; 9. stirring the plate; 10. a bearing; 11. a gear ring A; 12. a gear A; 13. a gear B; 14. a motor; 15. a circular plate; 16. a circular groove B; 17. fixing a column; 18. a hard tube A; 19. a ring groove B; 20. a hose; 21. a liquid pump; 22. rotating the seal ring; 23. a hard tube B; 24. a gear C; 25. a gear ring B; 26. a column block; 27. a circular groove C; 28. a liquid introducing groove A; 29. an arm lever; 30. a cantilever; 31. a liquid introducing groove B; 32. a coating mechanism; 33. a shell A; 34. an arc surface A; 35. an arc surface B; 36. a cambered surface C; 37. a chute A; 38. a resistance increasing plate; 39. a housing B; 40. a liquid introducing groove C; 41. a chute B; 42. a valve block; 43. a liquid introducing groove D; 44. a return spring; 45. a square tube; 46. a sealing plate; 47. a nozzle; 48. a square conical surface; 49. a fixing rod; 50. a square cone block; 51. a hard pipe C; 52. a spray head; 53. and adjusting the valve.
Detailed description of the preferred embodiments
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 14, a circular plate 15, a liquid pump 21, a hard tube B23, an arm 29, a cantilever 30, a coating mechanism 32, a hard tube C51 and a spray head 52, wherein as shown in fig. 3, 5 and 7, the roller 6 which is driven by the motor 14 and has a feed inlet 7 in the middle of the end surface rotates in the fixed cylinder 2 with one end open; as shown in fig. 3, 4 and 5, a circular plate 15 fixed in the fixed cylinder 2 and rotatably engaged with the inner wall of the roller 6 is provided with a circular groove B16, and a hard tube B23 which is communicated with a liquid pump 21 placed in the fluid coating material and is driven by the roller 6 to rotate in the same direction as the roller 6 is rotatably engaged in the circular groove B16; as shown in fig. 4 and 8, three hollow arm rods 29 communicated with the hard tube B23 are uniformly arranged on the hard tube B23 in the circumferential direction; as shown in fig. 8 and 9, the end of each arm 29 is provided with a hollow cantilever 30 communicated with the end; three coating mechanisms 32 are uniformly arranged on each cantilever 30 along the length direction of the cantilever at intervals; as shown in fig. 1, 2 and 4, two spray heads 52 for spraying the coating material from above the drug granules are mounted on a hard tube C51 fixed to the fixed cylinder 2 and extending from the feed opening 7 into the drum 6, and each spray head 52 has a control valve 53 for controlling the flow rate thereof.
As shown in fig. 10 and 12, the coating mechanism 32 includes a housing a33, a housing B39, a valve block 42, a return spring 44, a square tube 45, and a nozzle 47, wherein as shown in fig. 9, 10, and 13, the housing a33 with an open end is installed with the housing B39, the valve block 42 for opening and closing the liquid through groove C40 at the top of the housing B39 is hermetically slid in the housing B39 along a direction perpendicular to the hard tube B23 and the corresponding arm 29, and the return spring 44 for returning the valve block 42 is installed; a square tube 45 arranged at a liquid passing groove D43 on the valve block 42 is movably arranged in a chute A37 at the bottom of the shell A33 and a chute B41 at the bottom of the shell B39; a spray pipe 47 for spraying coating materials to the opening of the shell A33 is arranged at the liquid through groove C40 at the top of each shell B39; as shown in fig. 10 and 11, the square pipe 45 communicates with the liquid passing groove B31 of the corresponding cantilever 30.
As shown in fig. 2 and 3, the central axis of the hard tube B23 is located right below the central axis of the drum 6, so as to increase the frequency of spraying the coating material on the drug granules from the inside after the coating mechanism 32 enters the drug granules, and increase the efficiency of coating the drug granules by the coating mechanism 32.
As shown in fig. 1, 3 and 5, the fixed cylinder 2 is fixed on the ground through four support legs 1; the roller 6 rotates in the annular groove A4 on the inner wall of the fixed cylinder 2; as shown in fig. 3 and 4, two bearings 10 are fitted between the roller 6 and the fixed cylinder 2; the motor 14 is arranged outside the fixed cylinder 2, a gear B13 arranged on an output shaft of the motor 14 is meshed with a gear A12 arranged in a transmission groove 5 on the cylinder wall of the fixed cylinder 2, and the gear A12 is meshed with a gear ring A11 arranged outside the roller 6.
As shown in fig. 3, 4 and 5, a hard tube a18 which is rotatably matched with a hard tube B23 is arranged in a circular groove A3 on the end surface of the fixed cylinder 2, and the hard tube a18 is communicated with a liquid pump 21 which is placed in the fluid coating material through a hose 20; as shown in fig. 4 and 6, a rotary sealing ring 22 matched with a hard pipe B23 is arranged in a ring groove B19 on the inner wall of the hard pipe a 18; as shown in fig. 2, 3 and 7, six spiral stirring plates 9 which are coaxial with the drum 6 are uniformly arranged in the drum 6 in the circumferential direction, and a distance is reserved between the two ends of each stirring plate 9 and the end walls of the circular plate 15 and the drum 6, so that the medicine particles in the drum 6 can be driven by the stirring plates 9 to be stirred and can leak from gaps at the two ends of each stirring plate 9, the effective stirring of the medicine particles is realized, and the coating of the medicine particles is more uniform and rapid. The circular plate 15 is connected with the end wall of the fixed cylinder 2 through a fixed column 17; as shown in fig. 4, 9 and 11, a column block 26 is mounted at the end of the hard tube B23, a circular groove C27 in the middle of the end face of the column block 26 is communicated with a cantilever 30, and three liquid through grooves a28 communicated with the outer side of the circular groove C27 are uniformly distributed on the inner wall of the circular groove C27 in the circumferential direction. The stud 26 can weaken the strength of the hard tube B23 by attaching three arms 29 in communication with it. The three arm rods 29 are respectively arranged at the notches of the three liquid passing grooves A28 on the outer side of the column block 26; as shown in fig. 1, 3 and 4, the hard tube C51 is mounted on the support 8 on the fixed cylinder 2; the adjusting valves 53 of the two spray heads 52 are respectively movable in the axial gaps of the three coating mechanisms 32 of each cantilever 30. As shown in fig. 10, the sealing plate 46 is mounted on the square tube 45 and shields the sliding grooves a37 and B41, so as to prevent the medicine particles from entering the housing B39 through the sliding grooves a37 and B41 and interfering with the movement of the valve block 42.
As shown in fig. 2, 3 and 4, the gear C24 mounted on the hard tube B23 is engaged with a gear ring B25 mounted on the inner wall of the drum 6. The diameter ratio of the gear C24 to the gear ring B25 is equal to the diameter ratio of the circle where the three cantilevers 30 are located to the roller 6, so that the linear speed of the three groups of coating mechanisms 32 rotating around the hard tube B23 is equal to the linear speed of the roller 6, and further, each coating mechanism 32 is always located between any two adjacent stirring plates 9 on the inner wall of the roller 6 after entering the medicine particles and cannot interfere with the stirring plates 9.
As shown in fig. 10 and 14, the end of the inner wall of the nozzle 47 has an annular square conical surface 48, and four fixing rods 49 uniformly distributed in the circumferential direction are used for installing square conical blocks 50 with the same taper and the same central axis in the square conical surface 48; a gap is formed between the square cone block 50 and the square cone surface 48 at the tail end of the spray pipe 47, so that the coating material sprayed out of the spray pipe 47 is atomized and sprayed onto the medicine particles at the opening of the shell A33 in a larger area, and the coating efficiency of the medicine particles is improved.
As shown in fig. 10, 12 and 13, the front end of the housing a33 has an arc a34 and an arc B35 that reduce the resistance received by the housing a33 when entering the drug particles, and the housing a33 has an arc C36 that prevents the drug particles from entering the moving housing a33 through the opening of the housing a33 by draining the drug particles; the bottom of the housing a33 near the opening is fitted with a resistance increasing plate 38 that increases the resistance to its movement in the drug particles.
The motor 14 of the present invention is a speed reducing motor 14 of the prior art, and the liquid pump 21 adopts the prior art.
The working process of the invention is as follows: in the initial state, the coating mechanism 32 of the partial cantilever 30 is located in the space of the drum 6 for accommodating the drug particles, and the coating mechanism 32 of the partial cantilever is located above the drum 6 for accommodating the drug particles. The liquid passing grooves D43 of the valve blocks 42 in all the coating mechanisms 32 are not opposite to the liquid passing grooves C40 on the corresponding shells B39, and the liquid passing grooves D43 are in a closed state. The return spring 44 in each coating mechanism 32 is in a compressed state.
The motor 14 is started firstly, the motor 14 drives the roller 6 to rotate relative to the fixed cylinder 2 through the gear B13, the gear A12 and the gear ring A11, after the roller 6 rotates and operates stably, medicine particles are put into the roller 6 through the feed opening 7, and the situation that the coating mechanism 32 blocks the spray pipe 47 when the medicine particles enter the shell A33 due to the fact that the coating mechanism is static in the medicine particles is avoided. The rotating drum 6 drives the medicine particles to turn and stir through the stirring plate 9 on the inner wall of the drum. Meanwhile, the drum 6 drives the hard tube B23 to rotate relative to the circular plate 15 and the hard tube A18 through the gear ring B25 and the gear C24, the hard tube B23 drives the three cantilevers 30 to rotate around the hard tube B23 through the column block 26 and the three arm levers 29, and the three cantilevers 30 respectively drive the corresponding three coating mechanisms 32 to synchronously rotate around the hard tube B23. Since the diameter ratio of the gear C24 to the gear ring B25 is equal to the diameter ratio of the maximum circle where the three coating mechanisms 32 are located to the drum 6, the linear speed of the three cantilevers 30 rotating around the hard tube B23 is equal to the linear speed of the drum 6, thereby ensuring that the coating mechanism 32 on each cantilever 30 is always located between any two adjacent stirring plates 9 on the inner wall of the drum 6 after entering the drug particles and does not interfere with the stirring plates 9.
While the coating mechanism 32 in the drug particles moves around the hard tube B23 under the driving of the corresponding cantilever 30, the resistance increasing plates 38 on the shell A33 and the shell A33 interact with the drug particles and cause the shell A33 to drive the corresponding shell B39 to move relative to the valve block 42 in the direction perpendicular to the corresponding arm 29 and the hard tube B23 under the blocking of the drug particles, the shell A33 instantaneously moves to the limit relative to the valve block 42, the return spring 44 in the shell B39 is further compressed to the limit, the liquid passing groove D43 on the valve block 42 is just opposite to the liquid passing groove C40 on the corresponding shell B39, and the liquid passing groove C40 on the shell B39 is instantaneously in an open state.
After enough medicine particles are added into the roller 6, the liquid pump 21 and the two spray heads 52 on the hard tube C51 are started, the liquid pump 21 pumps liquid coating materials into the square tube 45 in each coating mechanism 32 through the hose 20, the hard tube A18, the hard tube B23, the column block 26, the three arms 29 and the cantilever 30, the coating materials entering the square tube 45 enter the spray pipe 47 through the liquid passing groove D43 on the valve block 42 in the coating mechanism 32 positioned in the medicine particles and the liquid passing groove C40 opened on the corresponding shell B39, and the coating materials entering the spray pipe 47 are further drained through the square cone block 50 at the tail end of the spray pipe 47 to form coating material spray and carry out efficient and uniform coating on the medicine particles flowing through the opening of the shell A33. Due to the arc surface C36 on the housing a33 of the coating mechanism 32, the drug particles guided by the arc surface C36 move away from the opening of the housing a33 during the movement of the housing a33 of the coating mechanism 32 into the drug particles without entering the housing a33 to block the nozzle 47.
Since the coating mechanism 32 located above the drug granules is not subjected to resistance by the drug granules, during the rotation of the coating mechanism 32 located above the drug granules around the hard tube B23, the liquid passage C40 of the housing B39 in the coating mechanism 32 located above the drug granules is closed by the corresponding valve block 42, the spray nozzle 47 in the coating mechanism 32 located above the drug granules does not spray the coating material to the outside, and the two spray nozzles 52 on the hard tube C51 spray the coating material to the drug granules from above the drug granules.
When the resistance increasing plate 38 on the coating mechanism 32 located in the drug granules just breaks away from the drug granules, since the resistance of the housing a33 on the coating mechanism 32 from the drug granules disappears, the housing a33 drives the housing B39 to instantaneously reset relative to the valve block 42 under the resetting action of the corresponding reset spring 44, the liquid passing groove C40 on the housing B39 is instantaneously closed by the valve block 42, and the spray pipe 47 does not spray the coating material outwards any more.
When the tip formed by the arc a34 and the arc B35 on the housing a33 in the coating mechanism 32 enters the drug pellet, the housing a33 in the coating mechanism 32 is initially subjected to a small resistance by the drug pellet and is not sufficient to generate a relative movement with respect to the valve block 42 against the action of the return spring 44 due to the presence of the arc a34 and the arc B35. When the resistance increasing plate 38 on the shell A33 in the coating mechanism 32 starts to enter the medicine particles, the resistance applied to the shell A33 is increased instantaneously and starts to move relatively relative to the valve block 42 against the elastic force of the return spring 44, at this time, the opening of the shell A33 also enters the medicine particles basically, as the shell A33 of the coating mechanism 32 moves relative to the valve block 42, the liquid through groove C40 on the shell B39 in the shell A33 is opened, and the spray pipe 47 drains the medicine particles from the interior of the medicine particles to the medicine particles which pass through the cambered surface C36 on the shell A33 and pass through the opening of the shell A33, and the coating material is uniformly and efficiently sprayed.
The coating mechanism 32 rotates in this way to reciprocally spray the coating material from the inside of the medicine particles, and at the same time, the two spray heads 52 on the hard tube C51 spray the coating material from above the medicine particles to the medicine particles, thereby improving the coating efficiency of the medicine particles. After the medicine particles are completely and uniformly coated, the medicine particles are discharged through the specific discharge hole at the bottom of the roller 6, and then the operation of the motor 14 is stopped, so that the phenomenon that the medicine particles enter the shell A33 to block the spray pipe 47 due to the stopping of the movement of the coating mechanism 32 in the medicine particles can be avoided.
The speed of the coating material sprayed out by the two spray heads 52 on the hard pipe C51 can be adjusted according to actual conditions by adjusting the adjusting valve 53 at the tail of the spray head 52.
In conclusion, the beneficial effects of the invention are as follows: the three coating mechanisms 32 alternately enter and exit the drug granules in the drum 6 at high frequency and spray coating materials to the drug granules inside the drug granules, thereby effectively improving the coating efficiency of the drug granules. Meanwhile, the two spray heads 52 above the drug particles spray coating materials on the drug particles outside the drug particles, so that the coating efficiency of the drug particles is further improved.
Claims (5)
1. The coating equipment for fully mixing the medicine granules is characterized in that: the device comprises a fixed cylinder, a roller, a motor, a circular plate, a liquid pump, a hard tube B, an arm rod, a cantilever, a coating mechanism, a hard tube C and a spray head, wherein the roller is driven by the motor and provided with a feed inlet in the middle of the end face rotates in the fixed cylinder with an opening at one end; a circular plate fixed in the fixed cylinder and rotationally matched with the inner wall of the roller is provided with a circular groove B, and a hard tube B which is communicated with a liquid pump placed in the fluid coating material and rotates in the same direction as the roller under the driving of the roller is rotationally matched in the circular 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 hollow cantilever communicated with the arm rod; three coating mechanisms are uniformly installed on each cantilever at intervals along the length direction of the cantilever; two spray heads for spraying coating materials from the upper part of the medicine particles are arranged on a hard tube C which is fixed on the fixed cylinder and extends into the roller from the feed inlet, and each spray head is provided with an adjusting valve for adjusting the flow;
the coating mechanism comprises a shell A, a shell B, a valve block, a return spring, a square tube and a spray tube, wherein the shell A with one open end is internally provided with the shell B, the interior of the shell B is hermetically and slidably provided with the valve block for opening and closing a liquid through groove C at the top of the shell B along the direction vertical to the hard tube B and a corresponding arm rod, the return spring for returning the valve block is arranged in the shell B, and the square tube arranged at the liquid through groove D on the valve block is movably arranged in a chute A at the bottom of the shell A and a chute B at the bottom of the shell B; spray pipes for spraying coating materials to openings of the shell A are arranged at the liquid through grooves C at the top of each shell B; the square tube is communicated with a liquid through groove B on the corresponding cantilever;
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 annular groove B on the inner wall of the hard pipe A; six spiral stirring plates which have the same central axis with the roller 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 end wall of 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 a cantilever, 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 passing grooves A on the outer side of the column block; the hard tube C is arranged on a support on the fixed cylinder; the two spray head regulating valves are respectively and movably arranged in the axial gaps of the three coating mechanisms on each cantilever; the square tube is provided with a sealing plate for shielding the corresponding sliding chute A and the sliding chute B;
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 spiral direction of the cantilever is consistent with that of the stirring plate; the diameter ratio of the gear C to the gear ring B is equal to the diameter ratio of a circle where the three cantilevers are located to the roller.
2. The apparatus for coating pharmaceutical granules with thorough mixing according to claim 1, wherein: the central axis of the hard tube B is positioned right below the central axis of the roller.
3. The apparatus for coating pharmaceutical granules with thorough mixing according to claim 1, wherein: 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.
4. The apparatus for coating pharmaceutical granules with thorough mixing according to claim 1, wherein: the tail end of the inner wall of the spray pipe is provided with an annular square conical surface, and square conical blocks with the same taper and the same central axis are installed in the square conical surface through four fixed rods which are uniformly distributed in the circumferential direction; a gap is formed between the square cone block and the square cone surface at the tail end of the spray pipe.
5. The apparatus for coating pharmaceutical granules with thorough mixing according to claim 1, wherein: the front end of 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 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; the bottom of the shell A near the opening is provided with an increasing resistance plate which increases the resistance to the movement of the shell A in the medicine particles.
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| CN202111671165.8A CN114306075B (en) | 2021-12-31 | 2021-12-31 | Coating equipment for fully mixing medicine granules |
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| CN202111671165.8A CN114306075B (en) | 2021-12-31 | 2021-12-31 | Coating equipment for fully mixing medicine granules |
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| CN114306075A CN114306075A (en) | 2022-04-12 |
| CN114306075B true CN114306075B (en) | 2023-04-18 |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE851470C (en) * | 1949-11-08 | 1952-10-06 | Paul Willig | Method and device for the production of coatings by spraying on plastic compounds |
| 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 |
| CN201806942U (en) * | 2010-09-15 | 2011-04-27 | 浙江小伦制药机械有限公司 | Roller cleaning liquid supply device for coating machine |
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| 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 |
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| 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 |
| CN112517270A (en) * | 2020-11-30 | 2021-03-19 | 吴方林 | Paint sprayer capable of spraying more uniformly and mixing more sufficiently |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114306075A (en) | 2022-04-12 |
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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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