CN118319756A

CN118319756A - Capsule filling device

Info

Publication number: CN118319756A
Application number: CN202410591549.6A
Authority: CN
Inventors: 张�杰; 陈芳平; 米晓峰; 周变红; 薛朝阳; 袁媛
Original assignee: Zhengzhou Ruikang Pharmaceutical Co ltd
Current assignee: Zhengzhou Ruikang Pharmaceutical Co ltd
Priority date: 2024-05-14
Filing date: 2024-05-14
Publication date: 2024-07-12

Abstract

The invention discloses a capsule filling device, which belongs to the technical field of capsule production and comprises a rotary table, wherein a workbench is arranged on the right side of the rotary table, a plurality of upper dies are uniformly and fixedly arranged on the outer surface of the rotary table along the circumference, a lower die is correspondingly arranged on the rotary table below each upper die in a sliding manner along the radial direction, and a plurality of die holes are correspondingly formed in each upper die and each lower die. According to the invention, the powder pushing device is arranged to push the powder to the upper end surface of the quantifying cylinder, so that the powder is filled into the quantifying cylinder to finish quantification, then the transmission mechanism drives the pressing rod to press the quantitative powder into the quantifying cylinder downwards, the quantitative powder is pushed into the capsule lower shell, the quantitative powder in the quantifying cylinder can be pressed into the powder by one-time pressing through the pressing rod, the pressing rod is provided with one group, the volume of the equipment is reduced, the cost is reduced, meanwhile, as the pressing rod only needs to press twice for each time of filling, the service life of the pressing rod is prolonged, and the production efficiency is also improved.

Description

Capsule filling device

Technical Field

The invention relates to the technical field of capsule production, in particular to a capsule filling device.

Background

The capsule filling machine is a device for filling powder into capsules, and generally comprises a quantitative disc and a pressing rod, wherein the pressing rod presses the powder in a quantitative hole of the quantitative disc into a powder column, and then the powder column is pressed into a capsule shell downwards to fill the capsules. The capsule is filled by adopting an automatic intermittent rotary motion mode, a rotary table is arranged in the center of a workbench, the rotary table has 6 or 8 times of short residence time per revolution, the rotary table conveys the capsule to each work station around the rotary table, and various operations such as capsule sowing, capsule separation, filling, waste capsule removing, capsule locking, capsule discharging, die cleaning and the like are simultaneously and automatically carried out in the short residence time of each station.

The searched patent number is: CN112190480A, a capsule filling machine is provided, the following technical scheme is disclosed, including: a mold; a conveying mechanism; and a plurality of stations, wherein the plurality of stations at least comprises: at least two sorting and separating stations, a die separating station, an unseparated capsule rejecting station, at least one drug filling station, a die aligning station, a capsule closing station, at least one capsule ejecting station and a cleaning station; the at least two sorting and separating stations comprise at least a first sorting and separating station for operating the holes of a first zone of the mould and a second sorting and separating station for operating the holes of a second zone of the mould different from the first zone, at least one of the first zone and the second zone covering a partial zone of at least two rows of holes of the plurality of rows of holes of the mould.

The technical scheme discloses a sorting separation station, a die separation station, an unseparated capsule rejecting station, at least one drug filling station, a die alignment station and a capsule closing station. The existing capsule filling device presses the medicine pole and needs to push down many times, until the powder in the quantitative hole of the quantitative disc is pressed into the medicine grain flush with the upper end of the quantitative hole, then the medicine grain is pressed into the capsule shell, the production efficiency is reduced by pushing down many times, meanwhile, a plurality of groups of medicine pressing poles are needed, each group of medicine pressing poles needs to push down one time for the same group of quantitative hole, the repeated pushing down is completed, the medicine powder is needed to be filled into the quantitative hole once after each pushing down, the set medicine quantity is only reached until the medicine pressing pole presses the medicine powder in the quantitative hole into the medicine grain with the same height as the quantitative hole, and the volume and the production cost of the equipment are increased.

Disclosure of Invention

The invention aims to provide a capsule filling device which has the advantages of low manufacturing cost and high production efficiency, solves the problem of low production efficiency of pressing a medicine rod downwards for multiple times, and is convenient for filling and adjusting different medicine powder amounts.

The invention adopts the following technical scheme: the capsule filling device comprises a rotary table, wherein a workbench is arranged on the right side of the rotary table, a plurality of upper dies are uniformly and fixedly arranged on the outer surface of the rotary table along the circumference, a lower die is correspondingly arranged on the rotary table below each upper die in a sliding manner along the radial direction, and a plurality of die holes are correspondingly formed in each upper die and each lower die; the upper end face of the workbench is provided with a quantifying device and a medicine filling device, and the quantifying device comprises a quantifying device body and a plurality of quantifying cylinders arranged in the quantifying device body; the medicine filling device comprises a medicine powder pushing device, a transmission mechanism and an executing mechanism, wherein the executing mechanism comprises a plurality of medicine pressing rods, the top ends of the medicine pressing rods are connected with the transmission mechanism and are correspondingly arranged with the quantitative cylinders, and the transmission mechanism is used for driving the medicine pressing rods to synchronously move in and out of the quantitative cylinders up and down; the medicine powder pushing device is used for pushing medicine powder into the quantitative measuring cylinder after the medicine pressing rod is lifted off the upper end surface of the quantitative measuring cylinder; a movable sealing device is correspondingly arranged on the workbench below the quantifying device body in a sliding manner, and the movable sealing device seals the bottom end opening of the quantifying cylinder when the powder pushing device fills powder into the quantifying cylinder; when the lower die in the filling station extends outwards, the lower die pushes the movable sealing device to give way to replace the movable sealing device;

An intermittent mechanism is arranged below the turntable and used for driving the turntable to intermittently rotate; a transmission ratio conversion device is arranged between the intermittent mechanism and the transmission mechanism, and the transmission ratio conversion device is used for adjusting the pressing times of the medicine pressing rod before the lower die pushes the movable sealing device to give way in each rotation period of the intermittent mechanism.

Further, two rows of measuring cylinder groups are arranged in the quantifying device body in front and back, and each row of measuring cylinder groups consists of a plurality of quantifying cylinders uniformly arranged along the left and right directions; the upper end face of the quantifying device body among the four quantifying cylinders which are distributed in rectangular four corners is provided with communicating holes, and the bottom end of each communicating hole is communicated with the interiors of the corresponding four quantifying cylinders; a plurality of exhaust pipes are uniformly arranged on the quantifying device body along the left-right direction, the bottom end of each exhaust pipe is communicated with the lower part of the corresponding quantifying cylinder inner cavity, and the top end of each exhaust pipe is higher than the upper end face of the quantifying cylinder.

Further, a plunger rod is slidably arranged in each exhaust pipe, and a vent pipe is arranged on each exhaust pipe; the top of every presses the medicine pole all through the fixed setting of clamp plate, the top of every plunger rod all is through linking the fixed setting of board, still is provided with interlock mechanism between clamp plate and the linking board, and interlock mechanism is used for lifting the in-process after pressing the medicine pole with the capsule inferior valve of lower mould with the medicine post, through driving clamp plate and linking board drive every plunger rod downwardly moving.

Further, a pushing bin connected with a workbench is arranged on the upper end face of the quantifying device body along the left-right direction, the upper end of each pressing rod sequentially penetrates through the pushing bin and a guide block arranged above the pushing bin and then is connected with a pressing plate, the pressing plate is arranged in a shell fixedly connected with the upper end face of the guide block in a vertically sliding manner, a pressing spring for driving the pressing plate to move downwards is arranged between the pressing plate and the upper plate, and a driving rod is fixedly arranged on the upper end face of the upper plate; a reset spring for driving the connecting plate to move upwards is arranged between the upper end face of the connecting plate positioned at the rear of the shell and the upper end face of the shell.

Further, a driving block is arranged on the upper end face of the connecting plate in front of the shell, an L-shaped rod is arranged on the front side face of the connecting plate, a tooth slot is formed in the rear side face of the vertical part of the L-shaped rod along the vertical direction, and a through slot is formed in the upper end face of the horizontal part of the L-shaped rod along the front-rear direction; the linkage mechanism comprises a guide block fixedly arranged on the front side surface of the shell, a guide groove is formed in the left side surface of the guide block, a fixed block is fixedly arranged on the left side surface of the pressing plate, the right side surface of the fixed block is connected with a sliding block in a sliding manner through a sliding groove in a front-back manner, the right side surface of the sliding block is connected with the left part of the guide rod in a sliding manner through a sliding hole in a left-right manner, and a telescopic spring for driving the guide rod to move rightwards is arranged between the left end of the guide rod and the bottom of the sliding hole; the left surface of the guide rod is fixedly provided with a rack along the vertical direction, the left side surface of the guide block is fixedly provided with a fixed rod, the left side surface of the fixed rod is rotationally connected with a gear, and the gear is meshed with the vertical part of the L-shaped rod through a tooth slot.

Further, the drive mechanism includes the fixed mounting panel that sets up of trailing flank of casing, and the right flank of mounting panel rotates to be connected with the drive wheel, and the right flank of drive wheel articulates there is first yoke, and the right flank of the actuating lever that is located the casing top articulates there is the second yoke, and the right flank of mounting panel articulates there is the slide bar, and the slide has been seted up along length direction to the inside of slide bar, and first yoke and second yoke all are located the slide of slide bar and with slide bar sliding connection.

Further, a working plate is arranged on the lower end face of the workbench, a vertical shaft with the top end fixed with the turntable is rotationally connected to the working plate, the intermittent mechanism comprises a sheave which is coaxially fixed with the vertical shaft and positioned between the working plate and the turntable, a plurality of driving grooves are uniformly formed in the sheave along the circumference, an arc-shaped face is formed on the outer surface of the sheave between every two driving grooves, a driving shaft with the top end fixed with the chassis is rotationally arranged on the working plate, and a locking block and a shifting column are fixedly arranged on the upper end face of the chassis; the lower terminal surface of working plate is fixed to be provided with the motor, and the output shaft of motor and the bottom mounting setting of driving shaft.

Further, the transmission ratio conversion device comprises a first conical gear which is positioned below the working plate and is fixedly arranged on the driving shaft, the lower end face of the working plate is rotationally connected with a transmission shaft, the front end and the rear end of the transmission shaft are respectively fixedly provided with a second conical gear and a third conical gear, the first conical gear is meshed with the second conical gear, the inside of the working plate is rotationally provided with a connecting shaft along the vertical direction, the bottom end and the top end of the connecting shaft are respectively fixedly provided with a fourth conical gear and a fifth conical gear, the fourth conical gear is meshed with the third conical gear, the driving wheel is rotationally connected with the mounting plate through a rotating shaft which is coaxially and fixedly arranged on the left side, the left end of the rotating shaft protrudes out of the left side face of the mounting plate and is fixedly provided with a sixth conical gear, the sixth conical gear is meshed with the fifth conical gear, and teeth of the fifth conical gear are twice those of the sixth conical gear teeth.

Further, in each rotation period of the intermittent mechanism, the guide rod is initially positioned at a first position, the guide rod forms a descending-resetting-second position-descending-resetting-first position action process under the track guiding action of the guide groove, the descending distance of the guide rod is consistent, and the guide rod forms circular motion in a plurality of rotation periods of the intermittent mechanism; the guide rod synchronously moves forward to generate displacement in the moving process, so that the action process of the guide rod pushing driving block, the guide rod separating driving block, the rack and the gear meshing and the guide rod pushing driving block is formed; the upper part of the inner cavity of each quantitative cylinder is communicated with the outside through an air outlet pipe correspondingly arranged at the outer side of the quantitative device body.

Further, a hopper communicated with the inside of the pushing bin is fixedly arranged on the upper end face of the pushing bin positioned on the right side of the shell, two pushing plates connected through a connecting rod are slidably arranged in the pushing bin along the left-right direction, and the right side face of the right pushing plate is connected with a second hydraulic telescopic rod arranged at the rear of the pushing bin; the two sides of each push plate are arranged in the corresponding box body in a sliding way in the up-down direction, and a plurality of built-in springs for driving the push plates to move downwards are fixedly arranged between the upper end surfaces of the push plates and the inner top wall of the box body.

1. According to the invention, the quantitative cylinder, the exhaust pipe, the vent pipe, the communication hole and the powder pushing device are arranged, when the device is used, the powder pushing device is used for pushing the powder to the upper end face of the quantitative cylinder, so that the powder falls into the quantitative cylinder by means of self weight, when the powder falls into the quantitative cylinder, air in the quantitative cylinder enters the exhaust pipe from the bottom and is discharged from the vent pipe, the powder falls into the quantitative cylinder more smoothly, and the condition that the powder is empty due to residual air in the quantitative cylinder is avoided.

2. According to the invention, the guide groove is arranged, so that the guide rod can press the driving block under the guide of the guide groove in the initial stage of pressing the medicine pressing rod for the first time, and then the plunger is pressed down to form a back blowing effect in the quantitative cylinder, so that the quantitative accuracy is improved; in the uplift of pressing the medicine pole second time pushing down, the guide groove guide arm has moved forward to rack and gear engagement's position for pressing the medicine pole second time pushing down in uplift can drive every plunger rod and move down, and the bottom business turn over blowback to the blast pipe reaches clear stifled effect, prepares for the ration section of thick bamboo that follows to fill in the medicine.

3. According to the invention, the positioning strip and the blocking block are arranged, so that the positioning of the quantitative device body is more accurate, the quantitative device body is convenient to replace, when medicine powder with different specifications is filled, the blocking block is pressed downwards, so that the upper end face of the blocking block is level with the upper end face of the workbench, and then the quantitative device body and the quantitative barrel can be pulled out rightwards, thereby facilitating the replacement and improving the production efficiency.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of a driving wheel according to the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the interior of the housing of the present invention (omitting the pushing bin);

FIG. 4 is a schematic view of the three-dimensional structure of the body of the quantitative device of the present invention;

FIG. 5 is a schematic view of the three-dimensional structure of the quantifying barrel according to the present invention;

FIG. 6 is an enlarged schematic view of a partial structure of the present invention;

FIG. 7 is a schematic view of the three-dimensional structure of the exhaust tube and plunger rod of the present invention in a mated state;

FIG. 8 is a three-dimensional schematic diagram of the mated state of the metering cylinder and the drug pressing rod of the present invention;

FIG. 9 is a schematic three-dimensional structure of the guide block and guide bar of the present invention in a mated state;

FIG. 10 is a schematic view of the three-dimensional structure of the slider of the present invention;

FIG. 11 is a schematic view of a three-dimensional structure of a guide block according to the present invention;

FIG. 12 is a schematic view of the three-dimensional structure of the interior of the turntable according to the present invention;

FIG. 13 is a schematic view of a three-dimensional structure of a motor according to the present invention;

FIG. 14 is a schematic view of a bottom view of a turntable according to the present invention;

fig. 15 is a schematic view of the mating three-dimensional structure of the sheave and chassis of the present invention.

In the figure, 1, a turntable; 2. an upper die; 3. a lower die; 4. a work table; 5. a pressing rod; 6. a dosing device body; 7. a quantitative cylinder; 8. a limiting groove; 9. a sealing plate; 10. a seal spring; 11. an exhaust pipe; 12. a communication hole; 13. a plunger rod; 14. a ventilation pipe; 15. a pressing plate; 16. a connecting plate; 17. a return spring; 18. a top block; 19. pushing a storage bin; 20. a guide block; 21. a support column; 22. a housing; 23. a support plate; 24. pressing down the spring; 25. an upper plate; 26. a driving rod; 27. a driving block; 28. an L-shaped rod; 29. tooth slots; 30. a through groove; 31. a guide block; 32. a fixed block; 33. a slide block; 34. a guide rod; 35. a telescopic spring; 36. a rack; 37. a fixed rod; 38. a gear; 39. an air outlet pipe; 40. a first guide groove; 41. a second guide groove; 42. a third guide groove; 43. a fourth guide groove; 44. a first drop chute; 45. a second drop chute; 46. a third drop chute; 47. a fourth drop chute; 48. a mounting plate; 49. a driving wheel; 50. a first yoke block; 51. a second yoke block; 52. a slide bar; 53. a slideway; 54. support legs; 55. a work plate; 56. a vertical shaft; 57. a sheave; 58. a driving groove; 59. an arc surface; 60. a driving shaft; 61. a chassis; 62. a locking block; 63. a poking column; 64. a motor; 65. a first bevel gear; 66. a transmission shaft; 67. a second bevel gear; 68. a third bevel gear; 69. a linkage shaft; 70. a fourth bevel gear; 71. a fifth bevel gear; 72. a sixth bevel gear; 73. a first hydraulic telescoping rod; 74. a hopper; 75. a push plate; 76. a connecting rod; 77. a push rod; 78. a second hydraulic telescoping rod; 79. a short bar; 80. a slide plate; 81. a cartridge; 82. a built-in spring; 83. a positioning strip; 84. a blocking piece; 85. a capsule shell carding station; 86. a filling station; 87. a notch; 88. a first position; 89. a second position.

Detailed Description

The invention is described in detail below with reference to the attached drawings and examples:

As shown in fig. 1 to 15, the capsule filling device of the present invention comprises a turntable 1, wherein a plurality of upper molds 2 are uniformly and fixedly arranged on the outer surface of the turntable 1 along the circumference, a lower mold 3 is correspondingly arranged on the turntable 1 below each upper mold 2 in a sliding manner along the radial direction, a plurality of mold holes are correspondingly arranged in each upper mold 2 and each lower mold 3, a workbench 4 is arranged on the right side of the turntable 1, a quantifying device and a medicine filling device are arranged on the upper end surface of the workbench 4, and the quantifying device comprises a quantifying device body 6 and a plurality of quantifying cylinders 7 arranged in the quantifying device body 6; the medicine filling device comprises a medicine powder pushing device, a transmission mechanism and an executing mechanism, wherein the executing mechanism comprises a plurality of medicine pressing rods 5, the top ends of the medicine pressing rods are connected with the transmission mechanism, the medicine pressing rods 5 are arranged corresponding to the quantitative cylinders 7, the transmission mechanism is used for driving each medicine pressing rod 5 to synchronously move in and out of the quantitative cylinders 7 up and down, and the medicine powder pushing device is used for pushing medicine powder into the quantitative cylinders 7 from right to left through openings of the upper end faces of the quantitative cylinders 7 after the medicine pressing rods 5 ascend to separate from the upper end faces of the quantitative cylinders 7.

When the invention is used, the turntable 1 rotates intermittently, and the number of times of intermittent rotation of each circle of turntable 1 is the number of stations of the turntable 1. The stations comprise a capsule shell carding station 85, a filling station 86, a rejecting station and the like, and the capsule shell carding station 85 has the function of respectively conveying capsule shells into the die holes of the upper die 2 and the lower die 3, wherein the upper die 2 is internally provided with an upper shell of a capsule, and the lower die 3 is internally provided with a lower shell of the capsule. The filling station 86 functions to fill the capsule with a metered quantity of powder; the rejecting station is used for rejecting unqualified capsule shells.

Except for the filling station 86, the upper die 2 and the lower die 3 at all the stations are in an up-down corresponding bonding state. And the lower die 3 at the filling station 86 slides along the radial direction of the rotary disc 1 to extend out to the lower part of the quantifying device body 6 under the action of the lower die driving mechanism when the rotary disc 1 rotates once, and each die hole of the lower die 3 corresponds to the position of the quantifying cylinder 7, so that in the process that the medicine pressing rod 5 is driven by the transmission mechanism to realize up-and-down reciprocating movement, medicine powder in the quantifying cylinder 7 is pressed into medicine grains through the action that the medicine pressing rod 5 moves downwards to enter the quantifying cylinder 7 and is pressed into a capsule lower shell in the lower die 3 below the quantifying device body 6, and the purpose of pouring the medicine grains into the capsule shell is realized;

after the capsule shell is filled with the medicine column, the medicine pressing rod 5 is lifted for a set distance, at the moment, the bottom end of the medicine pressing rod 5 is separated from the upper end face of the quantitative barrel 7, the opening of the upper end face of the quantitative barrel 7 is opened, the medicine powder is pushed to the upper end face of the quantitative barrel 7 from right to left by the medicine powder pushing device, and the medicine powder enters each quantitative barrel 7 through the opening of the upper end face of the quantitative barrel 7, so that the purpose of filling the medicine powder into the quantitative barrel 7 is achieved. The powder falls into the quantitative cylinder 7 by self weight under natural state and is flush with the upper end surface of the quantitative cylinder 7, thus basically reaching the set pouring amount.

In the above process, the capsule shell carding station 85, the filling station 86 and the rejecting station are all conventional in the art, and will not be described herein.

In the implementation process, when the powder is poured into the quantifying barrel 7, the bottom end of the quantifying barrel 7 needs to be in a sealing state, and in order to achieve the purpose of sealing the bottom end of the quantifying barrel 7, in this embodiment, a movable sealing device is arranged on the upper end surface of the workbench 4 at a position corresponding to the lower end surface of the quantifying device body 6, and when the powder is poured into the quantifying barrel 7 through the powder pushing device, the movable sealing device seals the bottom end of the quantifying barrel 7; when the lower die 3 in the filling station 86 is extended outwards, the lower die 3 pushes the movable sealing device to be unseated, so that the lower die 3 is positioned below the dosing device body 6 instead of the movable sealing device.

The movable sealing device comprises a limiting groove 8 which is arranged at a position corresponding to the upper end surface of the workbench 4, a sealing plate 9 is arranged in the limiting groove 8 in a sliding manner along the left-right direction, and an elastic driving device is fixedly arranged between the right side surface of the sealing plate 9 and the inner side wall of the limiting groove 8; the elastic driving device can adopt a sealing spring 10; the sealing spring 10 pushes the sealing plate 9 to always move towards the direction of the rotary table 1, when powder is poured into the quantifying cylinder 7 through the powder pushing device, the sealing plate 9 is positioned below the quantifying device body 6, the bottom end of the quantifying cylinder 7 can be sealed, and the purpose of pouring the powder into the quantifying cylinder 7 is achieved in a matched manner; when the lower die 3 in the filling station 86 protrudes outward (in a direction away from the turntable 1), the lower die 3 pushes the sealing plate 9 to move rightward, so that the position of the lower die 3 instead of the sealing plate 9 is below the dosing device body 6. When the medicine pressing rod 5 moves downwards, the medicine powder in the quantitative cylinder 7 is pressed into medicine grains in the quantitative cylinder 7 and pressed into the lower shell of the capsule in the lower die 3 below the quantitative device body 6, so that the purpose of filling the medicine grains into the capsule shell is realized.

Since the bottom end of the quantitative cylinder 7 is in a sealed state when the quantitative cylinder 7 is filled with the powder, when a large amount of powder is filled into the quantitative cylinder 7, the air in the quantitative cylinder 7 may not be smoothly and completely discharged, thereby preventing the powder from being filled, affecting the effect of the quantitative cylinder 7 in powder filling, sometimes even forming air without discharge in the quantitative cylinder 7, resulting in insufficient powder filling of the quantitative cylinder 7 and inaccurate quantitative determination of the quantitative cylinder 7.

In order to solve the above-mentioned problem, in this embodiment, a plurality of exhaust pipes 11 are uniformly and fixedly arranged on the quantifying device body 6 along the left-right direction, the bottom end of each exhaust pipe 11 is communicated with the lower part inside the corresponding quantifying cylinder 7, and the top end of each exhaust pipe 11 is higher than the upper end face of the quantifying cylinder 7; in the use, when powder pusher from right to left promotes the powder for when a large amount of powder infuses into quantitative section of thick bamboo 7 one by one, the air in the quantitative section of thick bamboo 7 can overflow through blast pipe 11, and the powder that the inside air of quantitative section of thick bamboo 7 leads to fills the obstructed problem of powder when effectively solving the pouring powder, improves the powder and fills the effect, ensures that the powder fills the volume accuracy, stops the insufficient condition emergence of powder to pour into.

In order to further improve the filling effect of the dosing cylinder 7, in this embodiment, two rows of dosing cylinder groups are disposed in the dosing device body 6 front and back, each row of dosing cylinder groups is composed of a plurality of dosing cylinders 7 uniformly disposed along the left-right direction; the upper end face of the quantifying device body 6 among the four quantifying barrels 7 distributed in rectangular four corners is provided with communication holes 12, and the bottom end of each communication hole 12 is communicated with the interiors of the corresponding four quantifying barrels 7; when the powder is poured into the quantitative cylinder 7, the powder can be poured downwards into the quantitative cylinder 7 through the communicating hole 12, so as to play a role in auxiliary pouring of the powder.

In the process of pressing the powder in the quantitative cylinder 7 into a grain by the downward movement of the pressing rod 5, as the bottom end of the exhaust pipe 11 is communicated with the inside of the quantitative cylinder 7, part of the powder is easy to squeeze into the bottom end of the exhaust pipe 11 to cause blockage, and when the powder is poured into the quantitative cylinder 7 again, the exhaust pipe 11 loses the exhaust function due to blockage. To solve this problem, in this embodiment, a plunger rod 13 is disposed in each exhaust pipe 11, and a vent pipe 14 is disposed on each exhaust pipe 11, where the vent pipe 14 is higher than the upper end surface of the dosing cylinder 7; the air in the quantitative cylinder 7 is discharged through the exhaust pipe 11 and the ventilation pipe 14 in sequence in the process of pressing the medicine pressing rod 5, so that the aim of ventilation when the quantitative cylinder 7 is filled with medicine powder is fulfilled; after the medicine pressing rod 5 presses the medicine column in the quantitative barrel 7 downwards into the capsule lower shell in the lower die 3, the plunger rod 13 synchronously moves downwards in the process of lifting the medicine pressing rod 5 upwards, so that the plunger rod 13 and the exhaust pipe 11 form the effect of a plunger pump, and air is injected into the quantitative barrel 7 through the bottom end of the exhaust pipe 11, so that blowing and clearing at the bottom end of the exhaust pipe 11 are realized, and preparation is made for filling medicine powder next time into the quantitative barrel 7;

in the invention, when the plunger rod 13 moves downwards to the position of the vent pipe 14, the vent pipe 14 can be sealed, and at the moment, the plunger rod 13 continues to move downwards to form the effect of a plunger pump, and the air is pumped into the dosing cylinder 7 through the exhaust pipe 11.

For the purpose of driving the plunger rods 13 to synchronously move downwards when the medicine pressing rods 5 move upwards, in this embodiment, the top ends of each medicine pressing rod 5 are fixedly arranged through the pressing plates 15, the top ends of each plunger rod 13 are fixedly arranged through the connecting plates 16, a linkage mechanism is arranged between the pressing plates 15 and the connecting plates 16, and the linkage mechanism is used for driving the pressing plates 15 to move downwards in the lifting process of the medicine pressing rods 5 after pushing the medicine columns into the capsule lower shells of the lower molds 3, so as to drive each plunger rod 13 to move downwards, and the air injection ventilation of the plunger rods 13 to the exhaust pipes 11 is realized.

In the invention, after the sealing plate 9 seals the bottom end of the quantitative cylinder 7, a powder pushing device completes the powder filling procedure of the quantitative cylinder 7; then the lower die 3 is positioned at the lower end of the quantitative cylinder 7 instead of the sealing plate 9, the medicine pressing rod 5 moves downwards to press the medicine powder in the quantitative cylinder 7 into medicine grains and press the medicine grains into the lower shell of the capsule in the lower die 3, and the capsule filling process is completed.

In order to further improve the effect of pressing the drug pressing rod 5 to pour the drug powder, in the invention, the drug pressing rod 5 is respectively pressed once before and after the lower die 3 replaces the sealing plate 9, the drug column forming can be realized under the cooperation of the sealing plate 9 in the first pressing, and the formed drug column is pressed into the lower shell of the capsule in the second pressing. The accurate molding effect of the grain and the accurate filling quantity of the powder can be ensured by two times of pressing.

In order to achieve the purpose of pressing the medicine pressing rod 5 twice in one rotation period of the turntable 1, an intermittent mechanism is arranged below the turntable 1 and used for driving the turntable 1 to rotate in a clearance, a transmission ratio conversion device is arranged between the intermittent mechanism and the transmission mechanism, and the transmission ratio conversion device drives the medicine pressing rod 5 to press twice through the transmission mechanism when the intermittent mechanism rotates once.

In the process of pressing the medicine pressing rod 5 twice, the medicine column is molded after the medicine pressing rod 5 is pressed for the first time, and at the moment, the exhaust pipe 11 does not need to be blown and communicated; after the molded medicine column is pressed into the lower shell of the capsule by the second pressing of the medicine pressing rod 5, the exhaust pipe 11 needs to be blown and cleared to be matched with a medicine powder pushing device to finish the next round of medicine powder pouring of the quantitative cylinder 7; in the invention, after the second pressing is completed by the linkage mechanism, the plunger rod 13 moves downwards synchronously in the process of lifting the medicine pressing rod 5 so as to complete blowing and clearing of the exhaust pipe 11.

In this embodiment, a pushing bin 19 is disposed on an upper end surface of the quantifying device body 6 along a left-right direction, an upper end of each pressing rod 5 sequentially passes through the pushing bin 19 and a guide block 20 disposed above the pushing bin 19 and then is connected with a pressing plate 15, the guide block 20 and the pushing bin 19 are fixedly disposed through a support column 21, a housing 22 is fixedly disposed on an upper end surface of the guide block 20, the pushing bin 19 is fixedly disposed with a workbench 4 through two vertically disposed support plates 23, the pressing plate 15 is movably disposed in the housing 22 up and down, a plurality of pressing springs 24 are fixedly disposed on an upper end surface of the pressing plate 15, a top end of each pressing spring 24 is fixedly disposed through an upper plate 25, a driving rod 26 is fixedly disposed on an upper end surface of the upper plate 25, and the driving rod 26 drives the pressing plate 15 to move up and down sequentially through the upper plate 25 and the pressing springs 24, so as to drive each pressing rod 5 to move up and down; when the medicine pressing rod 5 is pressed down for the first time, the medicine pressing rod 5 enters the quantitative cylinder 7 from the outside and presses down, medicine powder in the quantitative cylinder 7 is pressed into medicine grains, the pressing spring 24 is compressed at the moment, when the medicine pressing rod 5 is lifted up to be separated from the quantitative cylinder 7 and then enters the quantitative cylinder 7 again for the second time to press down, the medicine grains in the quantitative cylinder 7 are pushed into a capsule lower shell in a die hole of the lower die 3 by the medicine pressing rod 5, and the second pressing down distance of the medicine pressing rod 5 is larger than the first pressing down distance. Since the downward moving distance of the upper plate 25 is fixed in each pressing process of the medicine pressing rod 5, the pressing distance adjusting function is realized by the pressing spring 24 in the invention, and the pressing spring 24 is compressed according to the set compression amount due to the sealing plate 9 in the first pressing process of the medicine pressing rod 5; in the second pressing process of the medicine pressing rod 5, the lower die 3 pushes the sealing plate 9 to give way, and the upper plate 25 drives the medicine pressing rod 5 to move downwards to the set position through the pressing spring 24, so that the medicine pressing rod 5 is ensured to push the medicine powder in the quantitative barrel 7 into the capsule lower shell in the lower die 3 below.

In order to reset the plunger rods 13, the bottom ends of the plunger rods 13 are located above the ventilation tubes 14, in this embodiment, the upper end faces of the connecting plates 16 located behind the housing 22 are fixedly connected with the bottom ends of the reset springs 17, the top ends of the reset springs 17 are fixedly arranged with the housing 22 through the ejector blocks 18, the reset springs 17 pull the connecting plates 16 to move upwards all the time, and when the bottom ends of the plunger rods 13 are located above the ventilation tubes 14, the pulling force of the reset springs 17 balances with the gravity of each plunger rod 13, so that each plunger rod 13 is maintained at a position where the bottom end of each plunger rod 13 is located above the ventilation tube 14.

In this embodiment, a driving block 27 is fixedly disposed on the upper end surface of the connecting plate 16 located in front of the housing 22, an L-shaped rod 28 is fixedly disposed on the front side surface of the connecting plate 16, tooth grooves 29 are uniformly formed on the rear side surface of the vertical portion of the L-shaped rod 28 along the vertical direction, and through grooves 30 are formed on the upper end surface of the horizontal portion of the L-shaped rod 28 along the front-rear direction.

In this embodiment, the linkage mechanism includes a guide block 31 fixedly disposed on the front side of the housing 22, a guide slot is formed on the left side of the guide block 31, a fixed block 32 is fixedly disposed on the left side of the pressing plate 15, a sliding slot is disposed on the right side of the fixed block 32, a sliding block 33 is slidingly connected to the right side of the sliding block 33 through the sliding slot, a sliding hole is disposed on the right side of the sliding block 33, and is slidingly connected to the left portion of the guide rod 34 through the sliding hole, a telescopic spring 35 is fixedly disposed between the left end of the guide rod 34 and the bottom of the sliding hole, and the telescopic spring 35 drives the guide rod 34 to move right all the time, so that the right end of the guide rod 34 is always attached to and slidingly connected with the inner bottom wall of the guide slot; a rack 36 is fixedly arranged on the left part of the guide rod 34 along the vertical direction, a fixed rod 37 is fixedly arranged on the left side surface of the guide block 31, a gear 38 is rotatably connected with the left side surface of the fixed rod 37, and the gear 38 is meshed with the vertical part of the L-shaped rod 28 through a tooth slot 29; in the two depressions of the pressing plate 15 and the medicine pressing lever 5, the right end of the guide rod 34 is always located in the guide groove, and the guide rod 34 is guided by the guide groove in the up-down movement, so that the guide rod 34 is moved forward in succession in the fixed block 32 by the slider 33. When the medicine pressing rod 5 is lifted after being pressed down for the second time, the guide rod 34 drives the rack 36 to move forwards to a set position under the guidance of the guide groove, and at the moment, the rack 36 is meshed with the gear 38; the lifting action of the medicine pressing rod 5 drives the racks 36 to move upwards through the pressing plate 15, the fixing block 32, the sliding block 33 and the guide rod 34, the upward movement of the racks 36 drives the L-shaped rods 28 meshed with the gears 38 to move downwards through the gears 38, and the L-shaped rods 28 drive each plunger rod 13 to move downwards through the connecting plate 16, so that the downward movement of the plunger rods 13 is utilized to inject air into the quantifying cylinder 7 through the exhaust pipe 11, the bottom end of the exhaust pipe 11 is blown and cleared, and ventilation is facilitated when the next quantifying cylinder 7 fills medicine powder.

In the first depression of the plunger rod 5, when the plunger rod 13 is back-flushed against the dosing cylinder 7, it is ensured that the gas injected by the plunger rod 13 can escape smoothly in the event that the plunger rod 5 starts to close the dosing cylinder 7. In the embodiment, the upper part of the inner cavity of each quantifying barrel 7 is communicated with the outside through an air outlet pipe 39 correspondingly arranged at the outer side of the quantifying device body 6;

In the use process, when the intermittent mechanism drives the medicine pressing rod 5 to press down for the first time through the transmission ratio conversion device and the transmission mechanism, the pressing plate 15 drives the guide rod 34 to press down, so that the driving block 27 and the connecting plate 16 are driven to synchronously move down through the driving block 27 pressed down by the guide rod 34, and each plunger rod 13 is driven to move down; when the bottom end of the medicine pressing rod 5 just contacts the upper end face of the quantitative cylinder 7 to seal the top end of the quantitative cylinder 7, the bottom end of the plunger rod 13 just seals the vent pipe 14; the medicine pressing rod 5 and the plunger rod 13 are synchronously pressed down, and the plunger rod 13 is pressed down to recoil and blow the inside of the quantitative barrel 7 through the bottom end of the exhaust pipe 11, so that the medicine powder poured into the quantitative barrel 7 is disturbed, and the residual air in the medicine powder poured into the quantitative barrel 7 and the air entering from the bottom end of the exhaust pipe 11 are discharged through the air outlet pipe 39. In the process, if the powder poured in advance in the quantifying cylinder 7 has residual air, the powder in the quantifying cylinder 7 can fall down along with the discharge of the residual air, and part of the powder stored in the communicating hole 12 can be supplemented into the quantifying cylinder 7 in the process, so that the deficiency of the poured powder caused by the residual air in the quantifying cylinder 7 is reduced, and the powder which is accidentally coagulated into clusters can be blown away, so that the accuracy of powder pouring is improved; when the medicine pressing rod 5 continues to press down to completely block the inlet of the air outlet pipe 39 in the quantitative cylinder 7, the guide rod 34 at the moment moves forwards for a set distance under the limit of the guide groove, so that the guide rod 34 is separated from the upper end face of the driving block 27, the plunger rod 13 moves upwards under the tension of the reset spring 17 to open the air permeability pipe 14, the medicine pressing rod 5 continues to move downwards, the guide rod 34 does not drive the plunger rod 13 to move downwards any more due to separation from the driving block 27, the air injection in the quantitative cylinder 7 is stopped, the medicine pressing rod 5 continues to press down until the set distance is pressed down, and the medicine powder in the quantitative cylinder 7 is pressed into a medicine column. In this embodiment, the air outlet tube 39 is configured to blow back the powder filled in the dosing cylinder 7 once in the initial stage of the first pressing of the medicine pressing rod 5, so as to further prevent the problem of empty powder filled in the dosing cylinder 7, and a part of powder can be filled into the dosing cylinder 7 through the communication hole 12 to partially compensate for the empty powder filled amount caused by the air remaining in the dosing cylinder 7.

In each rotation period of the intermittent mechanism, the guide rod 34 is initially positioned at a first position 88, the guide rod 34 forms a descending-resetting to a second position 89-descending-resetting to the first position 88 under the action of the track guide of the guide groove, the descending distance of the guide rod 34 is consistent, and the guide rod 34 forms circular motion in a plurality of rotation periods of the intermittent mechanism; the guide rod 34 moves forward synchronously in the moving process to generate displacement, so that the guide rod 34 presses the driving block 27 downwards, the guide rod 34 is separated from the driving block 27, the rack 36 is meshed with the gear 38, and the guide rod 34 presses the driving block 27.

In the present embodiment, the guide grooves include a first guide groove 40, a second guide groove 41, a third guide groove 42, and a fourth guide groove 43, the bottom end of the first guide groove 40 communicates with the middle of the second guide groove 41 through a first descent chute 44, the top end of the second guide groove 41 communicates with the top end of the third guide groove 42 through a second descent chute 45, the bottom end of the third guide groove 42 communicates with the middle of the fourth guide groove 43 through a third descent chute 46, and the top end of the first guide groove 40 communicates with the top end of the fourth guide groove 43 through a fourth descent chute 47; the first descent chute 44 and the second guide groove 41 are uniform in depth and the inner bottom wall is lower than the inner bottom wall of the first guide groove 40, the second descent chute 45 and the third guide groove 42 are uniform in depth and the inner bottom wall is lower than the inner bottom wall of the second guide groove 41, the third descent chute 46 and the fourth guide groove 43 are uniform in depth and the inner bottom wall is lower than the third guide groove 42, the inner bottom wall of the fourth descent chute 47 slowly descends from the top end of the first guide groove 40 to the end of the fourth guide groove 43, and the inner bottom wall of the fourth descent chute 47 in contact with the first guide groove 40 is higher than the inner bottom wall of the first guide groove 40.

When in use, the specific moving mode of the guide rod 34 is that the guide rod 34 starts to move downwards from the top end of the first guide groove 40 when the medicine pressing rod 5 is pressed downwards for the first time, at the moment, the guide rod 34 moves downwards to be in contact with the upper end face of the driving block 27, namely, the guide rod 13 is pushed to move downwards by the driving block 27 and the connecting plate 16 in sequence, when the bottom end of the plunger rod 13 seals the ventilation pipe 14, the bottom end of the medicine pressing rod 5 just contacts with the upper end face of the quantifying cylinder 7, then the medicine pressing rod 5 continues to be pressed downwards for the first time, the plunger rod 13 starts to be pressed downwards to blow into the quantifying cylinder 7 through the bottom end of the exhaust pipe 11, so that the medicine pressing rod 5 enters the initial stage of the quantifying cylinder 7, The medicine powder in the quantitative cylinder 7 is reversely blown, the reversely blown gas is discharged from the gas outlet pipe 39, and if the medicine powder poured before the quantitative cylinder 7 is empty, the medicine powder stored in the communication hole 12 is supplemented; When the medicine pressing rod 5 continues to be pressed down until the bottom end of the air outlet pipe 39 is sealed, the right end of the guide rod 34 moves to the bottom end of the first guide groove 40 and enters the first descending chute 44, and enters the middle part of the second guide groove 41 through the first descending chute 44, at this time, the guide rod 34 is separated from the upper end face of the driving block 27 due to the set distance of forward movement, the plunger rod 13 moves up to the position with the bottom end above the air permeability pipe 14 under the tension of the return spring 17, the medicine pressing rod 5 continues to move down, the right end of the guide rod 34 moves down in the second guide groove 41 until the medicine pressing rod 5 moves down by the set distance to press the medicine powder in the quantifying cylinder 7 into a medicine column, The right end of the guide rod 34 moves downwards to the bottom end position of the second guide groove 41 at this time, then the medicine pressing rod 5 moves upwards to a set distance, the guide rod 34 moves to the top of the second guide groove 41 and enters the second descending chute 45 all the way in the second guide groove 41, since the inner bottom wall of the second descending chute 45 is lower than the inner bottom wall of the second guide groove 41, when the medicine pressing rod 5 is pressed downwards for the second time, the guide rod 34 enters the third guide groove 42 along the second descending chute 45, the position of the guide rod 34 moves forwards to a set distance, so that the guide rod 34 drives the rack 36 to move to a set distance in a direction approaching the gear 38, In the process of pressing the medicine rod 5 for the second time to push the medicine cartridge in the dosing cylinder 7 into the capsule lower case in the die hole of the lower die 3, the guide rod 34 initially moves downwards in the third guide groove 42, moves to the third descending chute 46, enters the fourth guide groove 43 along the third descending chute 46, moves downwards to the bottom of the fourth guide groove 43 along the fourth descending chute 46, moves forwards by a set distance when the guide rod 34 enters the fourth guide groove 43 from the fourth chute, drives the rack 36 to be further close to the gear 38 and meshed with the gear 38, then moves downwards from the middle part of the fourth guide groove 43 to the bottom of the fourth guide groove 43 by a set distance, The downward movement of the rack 36 drives the gear 38 to rotate, the gear 38 rotates to drive the vertical part of the L-shaped rod 28 to move upwards, the L-shaped rod 28 drives the connecting plate 16 to move upwards to drive each plunger rod 13 to move upwards, the plunger rods 13 move upwards by a set distance, the upward movement of the plunger rods 13 aims at avoiding the compression of air in the quantitative cylinder 7 when the medicine pressing rod 5 moves downwards in the quantitative cylinder 7, then the upward movement of the medicine pressing rod 5 is needed, the back blowing in the quantitative cylinder 7 is needed at the moment, the bottom end of the exhaust pipe 11 is prevented from being blocked, and preparation is made for pouring medicine powder into the quantitative cylinder 7, The upward movement guide rod 34 of the medicine pressing rod 5 moves upward in the fourth guide groove 43, the guide rod 34 drives the rack 36 to move upward, the rack 36 drives the gear 38 to rotate, the gear 38 drives the L-shaped rod 28 to move downward, the L-shaped rod 28 moves downward through the connecting plate 16 to drive each plunger rod 13 to move downward, so that the plunger rods 13 blow into the dosing cylinder 7 through the exhaust pipe 11, the bottom end of the exhaust pipe 11 is cleared, when the medicine pressing rod 5 moves upward to a set distance, the guide rod 34 moves upward into the fourth descending inclined groove 47 communicated with the top end of the fourth guide groove 43, and enters the first guide groove 40 along the fourth descending inclined groove 47, After the guide rod 34 enters the fourth descending groove 47, the guide rod 34 moves backwards by a set distance to drive the rack 36 to be disengaged from the gear 38, and the two pressing operations of the medicine pressing rod 5 are completed, at this time, the medicine powder pushing device starts pushing medicine from right to left, the medicine powder is poured into the quantitative cylinder 7, and then the medicine pressing rod 5 is pressed down for the first time of the next two pressing operations, because the inner bottom wall of the first guide groove 40 is lower than the inner bottom wall of the contact part of the fourth descending groove 47 and the first guide groove 40, the guide groove moves downwards along the first guide groove 40, and the situation of entering the fourth descending groove 47 does not occur.

In order to achieve the purpose of driving the driving rod 26 to move up and down, in this embodiment, the transmission mechanism includes a mounting plate 48 fixedly arranged on the rear side of the housing 22, a driving wheel 49 is rotatably connected to the right side of the mounting plate 48, a first yoke block 50 is hinged to the right side of the driving wheel 49, a second yoke block 51 is hinged to the right side of the driving rod 26 above the housing 22, a slide rod 52 is hinged to the right side of the mounting plate 48, a slide way 53 is formed in the slide rod 52 along the length direction, the first yoke block 50 and the second yoke block 51 are both located in the slide way 53 of the slide rod 52, and the slide rod 52 is slidably connected with the first yoke block 50 and the second yoke block 51 through the slide way 53; the driving wheel 49 rotates to drive the slide rod 52 to reciprocate up and down through the first yoke block 50, and the slide rod 52 swings up and down to drive the driving rod 26 to reciprocate up and down through the second yoke block 51, so that the purpose of driving the driving rod 26 to reciprocate up and down is achieved.

In order to achieve the purpose of intermittent movement of the turntable 1, in this embodiment, a working plate 55 is fixedly arranged on the lower end surface of the workbench 4 through supporting legs 54, the working plate 55 is coaxially arranged with the turntable 1 through a vertical shaft 56 which is rotationally connected, the intermittent mechanism comprises a grooved wheel 57 fixedly arranged on the outer surface of the vertical shaft 56 between the working plate 55 and the turntable 1, a plurality of driving grooves 58 are uniformly formed on the grooved wheel 57 along the circumference, an arc-shaped surface 59 is formed on the outer surface of the grooved wheel 57 between every two driving grooves 58, a driving shaft 60 is arranged inside the working plate 55 in a penetrating manner, the driving shaft 60 is rotationally connected with the working plate 55, a chassis 61 is fixedly arranged at the top end of the driving shaft 60, and a locking block 62 and a poking column 63 are fixedly arranged on the upper end surface of the chassis 61; a motor 64 is fixedly arranged on the lower end surface of the working plate 55, and an output shaft of the motor 64 is fixedly arranged with the bottom end of the driving shaft 60; the motor 64 drives the shifting column 63 to move through the driving shaft 60 and the chassis 61, when the shifting column 63 enters the driving groove 58 of the grooved pulley 57, the grooved pulley 57 is shifted to rotate once until the shifting column 63 is separated from the driving groove 58, the grooved pulley 57 stops rotating, the outer surface of the locking block 62 is attached to the arc-shaped surface 59 of the grooved pulley 57 at the moment to lock the grooved pulley 57, the grooved pulley 57 is prevented from rotating, the shifting column 63 intermittently drives the grooved pulley 57 to rotate along with the rotation of the chassis 61, so that the grooved pulley 57 can be driven to rotate once every time the driving shaft 60 rotates, and the grooved pulley 57 is driven to rotate once; the sheave 57 has several driving grooves 58, i.e. it is necessary to intermittently rotate several times for one revolution of the turntable 1, and the lower die 3 at the filling station 86 is protruded to move to a position below the dosing body 6 instead of the sealing plate 9 every time it rotates.

In this embodiment, the transmission ratio conversion device includes a first conical gear 65 fixedly disposed on a driving shaft 60 below a working plate 55, a driving shaft 66 is rotatably connected to a lower end surface of the working plate 55, a second conical gear 67 is fixedly disposed at a front end of the driving shaft 66, a third conical gear 68 is fixedly disposed at a rear end of the driving shaft 66, the first conical gear 65 and the second conical gear 67 are meshed, a connecting shaft 69 is rotatably disposed in the working plate 55 along a vertical direction, a fourth conical gear 70 is fixedly disposed at a bottom end of the connecting shaft 69, a fifth conical gear 71 is fixedly disposed at a top end of the connecting shaft 69, the fourth conical gear 70 is meshed with the third conical gear 68, a rotating shaft is coaxially and fixedly disposed at a left side of the driving wheel 49, the driving wheel 49 is rotatably connected to the mounting plate 48 through the rotating shaft, a left end of the rotating shaft protrudes from a left side surface of the mounting plate 48 and is fixedly disposed with a sixth conical gear 72, the sixth conical gear 72 is meshed with the fifth conical gear 71, and teeth of the fifth conical gear 71 are doubled teeth of the sixth conical gear 72, therefore the fifth conical gear 71 rotates one round and the sixth conical gear 72 will rotate two rounds; when the rotary table is used, the motor 64 drives the vertical shaft 56 to rotate sequentially through the driving shaft 60, the chassis 61, the shifting column 63 and the grooved pulley 57, the vertical shaft 56 rotates to drive the rotary table 1 to rotate, the chassis 61 rotates once, therefore, the rotary table 1 rotates once, the driving shaft 60 rotates once and drives the sixth bevel gear 72 to rotate twice sequentially through the first bevel gear 65, the second bevel gear 67, the transmission shaft 66, the third bevel gear 68, the connecting shaft 69 and the fifth bevel gear 71, the sixth bevel gear 72 rotates twice to drive the driving wheel 49 to rotate twice, the driving wheel 49 rotates twice to drive the driving rod 26 to move up and down twice through the sliding rod 52, the first yoke 50 and the second yoke 51, and the purpose that the rotary table 1 rotates once and the medicine pressing rod 5 is driven to press down twice through one circle of rotation of the driving shaft 60 is achieved.

In order to achieve the purpose of driving the lower mold 3 to move radially along the turntable 1, in this embodiment, the lower mold driving mechanism includes a plurality of first hydraulic telescopic rods 73 fixedly disposed radially inside the turntable 1, the output end of each first hydraulic telescopic rod 73 is fixedly disposed with the corresponding lower mold 3, when the turntable 1 rotates intermittently, before each rotation, the first hydraulic telescopic rod 73 located at the filling station 86 first pulls the lower mold 3 located below the dosing device body 6 to below the corresponding upper mold 2, then the turntable 1 rotates once, the medicine pressing rod 5 at this time completes the first pressing, presses the medicine powder in the dosing cylinder 7 into a medicine column, then the medicine pressing rod 5 presses down for the second time, and before the medicine pressing rod 5 presses down for the second time to push the medicine column, the first hydraulic telescopic rod 73 located at the filling station 86 pushes the lower mold 3 to move radially outwards along the turntable 1, so that the lower mold 3 pushes the sealing plate 9, the mold hole of the lower mold 3 is located below the dosing device body 6, and the corresponding dosing cylinder 7 is abutted with the corresponding dosing cylinder 7, and then the second pressing rod 5 pushes the medicine column into the inner shell of the capsule shell of the lower mold 7.

In order to realize the purpose of pushing down and lifting the medicine pressing rod 5 for the second time, when the medicine pressing rod 5 is separated from the upper end surface of the quantitative cylinder 7 upwards by a preset height, the medicine powder pushing device pushes medicine powder into the pushing bin 19 from right to left to fill medicine powder into the quantitative cylinder 7, in this embodiment, the upper end surface of the pushing bin 19 positioned on the right of the shell 22 is fixedly provided with a hopper 74, the bottom end of the hopper 74 is communicated with the inside of the pushing bin 19, two pushing plates 75 are arranged in the pushing bin 19 in a sliding manner along the left-right direction, a connecting rod 76 is fixedly arranged between the two pushing plates 75, the right side surface of the pushing plate 75 on the right side is fixedly provided with a push rod 77, the rear of the pushing bin 19 is provided with a second hydraulic telescopic rod 78 fixedly arranged with the two supporting columns 21, and the output end of the second hydraulic telescopic rod 78 is fixedly arranged with the push rod 77 through a short rod 79; when the medicine filling device is used, firstly, the hopper 74 stores enough medicine powder in advance, the medicine powder falls between the two push plates 75 in the pushing bin 19 downwards through the hopper 74 until the space between the two push plates 75 is filled, when the medicine pressing rod 5 is lifted for the second time, and after the bottom end of the medicine pressing rod 5 and the upper end face of the quantitative barrel 7 are separated from each other by a set height, the second hydraulic telescopic rod 78 drives the two push plates 75 to move from right to left through the short rod 79 and the ejector rod 77, the medicine powder between the two push plates 75 is wrapped and clamped passes through the upper end face of the quantitative barrel 7, so that the medicine powder gradually fills into the quantitative barrel 7, at the moment, the inner space of the quantitative barrel 7 is communicated with the atmosphere through the exhaust pipe 11 and the air permeability pipe 14, the air in the quantitative barrel 7 is discharged from the air permeability pipe 14 along with the medicine powder filling into the quantitative barrel 7, when the two push plates 75 are also filled with medicine powder, the two push plates 75 start to move right under the driving of the second hydraulic telescopic rod 78, the medicine powder filling up between the two push plates 75 is enabled to pass through the upper end face of the quantitative barrel 7 again, the medicine powder filling between the two push plates 75 can continue to fill into the quantitative barrel 75 until the medicine powder filling is completed, and the medicine powder filling between the two push plates 75 is stopped, and the medicine powder filling is carried out continuously under the two push plates 75.

In the above technical solution, when the two pushing plates 75 move leftwards to push the powder, the powder in the hopper 74 falls down to the right of the right pushing plate 75, and in order to avoid this problem, in this embodiment, the upper end surface of the right pushing plate 75 is fixedly provided with a sliding plate 80, and the sliding plate 80 is slidably disposed in the pushing bin 19 along the left-right direction; when the two pushing plates 75 move leftwards to fill the quantitative cartridges 7 with the medicine powder, the sliding plate 80 slides leftwards in the pushing hopper 19 following the pushing plate 75 on the right side, and the sliding pushing plate 75 seals the bottom end of the hopper 74 to prevent the medicine powder in the hopper 74 from falling to the right of the pushing plate 75 on the right side.

In normal production, the quantitative cylinders 7 with different heights need to be replaced to meet the purpose of different quantification, in order to enable the two push plates 75 to meet the purpose of using the quantitative cylinders 7 with different heights, in the embodiment, two box bodies 81 are arranged at the positions of the two push plates 75, the two push plates 75 are arranged in the box bodies 81 in a sliding manner along the up-down direction, a plurality of built-in springs 82 are fixedly arranged between the upper end face of the push plate 75 and the inner top wall of the box body 81, and the built-in springs 82 push the push plates 75 to move downwards all the time, so that the lower end face of the push plate 75 is always attached to the upper end face of the quantitative cylinder 7; when the quantitative device body 6 and the quantitative cylinder 7 with different heights are replaced during production, when the powder pushing device pushes powder, the two pushing plates 75 move up and down in the box 81 to adapt to the height of the quantitative cylinder 7, and the bottom ends of the pushing plates 75 are kept in contact with the upper end face of the quantitative cylinder 7, so that the function of pushing the powder is realized.

In order to achieve more accurate positioning of the quantifying device body 6 and the quantifying barrel 7 on the upper end surface of the workbench 4, in this embodiment, positioning strips 83 are provided on the front side surface, the rear side surface and the left side surface of the quantifying device body 6, the lower end surface of each positioning strip 83 is fixedly arranged with the upper end surface of the workbench 4, a blocking piece 84 is provided on the right side surface of the quantifying device body 6, the blocking piece 84 is slidably arranged in the workbench 4 along the up-down direction, an elastic element is provided on the lower end surface of the blocking piece 84, the elastic element drives the blocking piece 84 to always protrude from the upper end surface of the workbench 4, and the left side surface of the blocking piece 84 is attached to the right side surface of the quantifying device body 6; through setting up of location strip 83 and stop block 84 for the location of proportioning device body 6 is more accurate, when simultaneously needing to change proportioning device body 6 and proportioning cylinder 7, only need press down and press stop block 84, make the up end that stops block 84 and the up end parallel and level of workstation 4, then can pull out proportioning device body 6 and proportioning cylinder 7 to the right, the convenient change, change proportioning device body 6 and proportioning cylinder 7 still another method, firstly make the bed die 3 that is located filling station 86 pull back to the upper die 2 below through corresponding first hydraulic telescoping rod 73, the closing plate 9 that follows the removal of bed die 3 and remove at this moment under the promotion of sealing spring 10, and then be located the below of proportioning device body 6 entirely, at this moment through using the tool manual removal closing plate 9, make closing plate 9 move to the right, after closing plate 9 shifts out the below of proportioning device body 6 entirely, proportioning device body 6 can drop down automatically, then with new proportioning device body 6 support under pushing silo 19, then make closing plate 9 move to the closing plate 9 left, make the closing plate 9 move to the dead body 6 to the below, can realize that the proportioning device body 6 installs the device.

In order to prolong the time for the drug pressing rod 5 to close the air outlet pipe 39, in the embodiment, a notch 87 with the top end communicated with the air outlet pipe 39 is formed on the inner side wall of the quantitative barrel 7 at the position corresponding to the bottom end of the air outlet pipe 39; when the medicine pressing rod 5 is pressed down for the first time, the guide rod 34 is located in the first guide groove 40, so that the guide rod 34 is pressed down to push the driving block 27 to move downwards, each plunger rod 13 is driven to move downwards, back blowing is carried out on medicine powder in the quantitative barrel 7, back blowing gas is discharged through the notch 87 and the air outlet pipe 39, and due to the notch 87, the stroke of closing the air outlet pipe 39 is increased when the medicine pressing rod 5 moves downwards, and the joint of the first descending chute 44 and the second guide groove 41 can be adaptively moved downwards, so that the back blowing time is increased, and the back blowing effect is more obvious.

The working principle of the invention is as follows: the capsule shell carding station 85 loads the upper shell of the capsule shell into the die hole of the upper die 2, loads the lower shell of the capsule shell into the die hole of the lower die 3, then the rotary table 1 intermittently rotates once, so that the upper die 2 and the lower die 3 filled with the capsule shell rotate to the filling station 86, then the lower die 3 enters the lower part of the quantifying device body 6 under the pushing of the first hydraulic telescopic rod 73, so that the die hole of the lower die 3 is correspondingly butted with the quantifying cylinder 7, at the moment, the drug pressing rod 5 is pressed down for the second time to send the drug column in the quantifying cylinder 7 into the lower shell of the capsule of the lower die 3, then the lower die 3 returns to the lower part of the upper die 2 under the pulling of the first hydraulic telescopic rod 73, the rotary table 1 then rotates once, in the process of rotation, the medicine pressing rod 5 is lifted for the second downward pressing, the right end of the guide rod 34 moves upwards in the fourth guide groove 43, the rack 36 and the gear 38 are in a meshed state, the rack 36 drives the gear 38 to rotate, the gear 38 rotates to drive the vertical part of the L-shaped rod 28 to move downwards, the L-shaped rod 28 drives each plunger rod 13 to move downwards through the connecting plate 16, the plunger rods 13 move downwards in the exhaust pipe 11, the plunger rods 13 inject air into the quantitative cylinder 7 through the bottom end of the exhaust pipe 11, the bottom end of the exhaust pipe 11 is reversely blown once, the medicine pressing rod 5 lifts to a set height, the guide rod 34 at this time enters the first guide groove 40 under the guide of the fourth descending groove 47, the guide rod 34 moves backward during the process of the guide rod 34 entering the fourth descending groove 47 from the fourth guide groove 43, the rack 36 is disengaged from the gear 38, each plunger rod 13 moves upward under the tension of the return spring 17, so that the vent tube 14 is opened, simultaneously the two pushing plates 75 push the medicine powder into the upper end surface of the quantitative measuring cylinder 7 under the pushing of the second hydraulic telescopic rod 78 to perform one-time medicine powder pouring on the quantitative measuring cylinder 7, the medicine pressing rod 5 is pressed down for the first time, the guide rod 34 moves downward in the first guide groove 40, The guide rod 34 contacts with the upper end surface of the driving block 27 in the downward moving process, so as to push the driving block 27 to move downwards, so that each plunger rod 13 is driven to move downwards through the push plate 75, when the plunger rod 13 moves downwards to seal the vent pipe 14, the bottom end of the medicine pressing rod 5 is just flush with the upper end surface of the quantifying cylinder 7, the pressing rod continues to press down, the plunger rod 13 presses the air in the exhaust pipe 11 into the quantifying cylinder 7 to reversely blow the medicine powder in the quantifying cylinder 7, the medicine powder in the quantifying cylinder 7 is disturbed, if the medicine powder filled in the quantifying cylinder 7 is not full, the medicine powder will fall, and the medicine powder stored in the communication hole 12 will be fed into a part of the quantifying cylinder 7, The back-blown air is discharged from the air outlet pipe 39, the medicine pressing rod 5 is continuously pressed down to seal the air outlet pipe 39, at the moment, the guide rod 34 enters the second guide groove 41 along the first descending chute 44, the guide rod 34 is separated from the upper end face of the driving block 27, the plunger rod 13 is moved upwards to a position for opening the air permeability pipe 14 under the tension of the return spring 17, the medicine pressing rod 5 is continuously pressed down to press the medicine powder in the quantitative barrel 7 into medicine grains, then the medicine pressing rod 5 is moved upwards to a set height, the right end of the guide rod 34 enters the third guide groove 42 through the second descending chute 45, then the medicine pressing rod 5 is pressed down for the second time, at the moment, the turntable 1 is rotated in place, Then the first hydraulic telescopic rod 73 pushes the lower die 3 to enter the lower part of the quantifying device body 6, the medicine pressing rod 5 moves downwards to push the medicine column in the quantifying cylinder 7 into the capsule lower shell, in the process, the guide rod 34 enters the fourth guide groove 43 through the third descending chute 46, the rack 36 is meshed with the gear 38 at the moment, then the medicine pressing rod 5 moves upwards, the guide rod 34 moves upwards in the fourth guide groove 43, in the process of lifting the medicine pressing rod 5 downwards for the second time, the rack 36 drives the gear 38 to rotate so as to enable the L-shaped rod 28 to move downwards, the plunger rod 13 moves downwards, the air is blown into the quantifying cylinder 7 through the air outlet pipe 11, the bottom end of the air outlet pipe 11 is reversely blown once, the exhaust pipe 11 is prevented from being blocked, and preparation is made for filling the powder into the dosing cylinder 7.

Claims

1. The utility model provides a capsule filling device, includes carousel (1), carousel (1) right-hand workstation (4) that are provided with, its characterized in that: a plurality of upper dies (2) are uniformly and fixedly arranged on the outer surface of the rotary table (1) along the circumference, a lower die (3) is correspondingly arranged on the rotary table (1) below each upper die (2) in a sliding manner along the radial direction, and a plurality of die holes are correspondingly formed in each upper die (2) and each lower die (3); the upper end face of the workbench (4) is provided with a quantifying device and a medicine filling device, and the quantifying device comprises a quantifying device body (6) and a plurality of quantifying cylinders (7) arranged in the quantifying device body (6); the medicine filling device comprises a medicine powder pushing device, a transmission mechanism and an execution mechanism, wherein the execution mechanism comprises a plurality of medicine pressing rods (5) of which the top ends are connected with the transmission mechanism and are correspondingly arranged with the quantitative cylinders (7), and the transmission mechanism is used for driving the medicine pressing rods (5) to synchronously move in and out of the quantitative cylinders (7) up and down; the medicine powder pushing device is used for pushing medicine powder into the quantitative measuring cylinder (7) after the medicine pressing rod (5) is lifted off the upper end surface of the quantitative measuring cylinder (7); a movable sealing device is correspondingly arranged on the workbench (4) below the quantifying device body (6) in a sliding way, and when the powder pushing device fills the powder into the quantifying cylinder (7), the movable sealing device seals the bottom end opening of the quantifying cylinder (7); when the lower die (3) in the filling station (86) stretches out, the lower die (3) pushes the movable sealing device to give way to replace the movable sealing device;

An intermittent mechanism is arranged below the turntable (1) and is used for driving the turntable (1) to intermittently rotate; a transmission ratio conversion device is arranged between the intermittent mechanism and the transmission mechanism, and the transmission ratio conversion device is used for adjusting the pressing times of the medicine pressing rod (5) before the lower die (3) pushes the movable sealing device to give way in each rotation period of the intermittent mechanism.

2. Capsule filling device according to claim 1, wherein: two rows of measuring cylinder groups are arranged in the quantifying device body (6) in front and back, and each row of measuring cylinder groups consists of a plurality of quantifying cylinders (7) which are uniformly arranged along the left and right directions; the upper end face of the quantifying device body (6) among the four quantifying cylinders (7) which are distributed in rectangular four corners is provided with communicating holes (12), and the bottom end of each communicating hole (12) is communicated with the inside of the corresponding four quantifying cylinders (7); a plurality of exhaust pipes (11) are uniformly arranged on the quantifying device body (6) along the left-right direction, the bottom end of each exhaust pipe (11) is communicated with the lower part of the inner cavity of the corresponding quantifying cylinder (7), and the top end of each exhaust pipe (11) is higher than the upper end face of the quantifying cylinder (7).

3. Capsule filling device according to claim 2, wherein: a plunger rod (13) is slidably arranged in each exhaust pipe (11), and a ventilation pipe (14) is arranged on each exhaust pipe (11); the top of every presses medicine pole (5) all is through clamp plate (15) fixed setting, and the top of every plunger rod (13) all is through linking board (16) fixed setting, still is provided with interlock mechanism between clamp plate (15) and linking board (16), and interlock mechanism is used for pushing the capsule inferior valve after of bed die (3) at pressing medicine pole (5) and lifts the in-process, through driving clamp plate (15) and linking board (16) drive every plunger rod (13) downwardly moving.

4. A capsule filling device according to claim 3, wherein: the upper end face of the quantifying device body (6) is provided with a pushing bin (19) connected with the workbench (4) along the left-right direction, the upper end of each pressing rod (5) sequentially passes through the pushing bin (19) and a guide block (20) arranged above the pushing bin (19) and then is connected with a pressing plate (15), the pressing plate (15) is arranged in a shell (22) fixedly connected with the upper end face of the guide block (20) in a sliding manner up and down, a pressing spring (24) for driving the pressing plate (15) to move downwards is arranged between the pressing plate (15) and the upper plate (25), and the upper end face of the upper plate (25) is fixedly provided with a driving rod (26); a reset spring (17) for driving the connecting plate (16) to move upwards is arranged between the upper end surface of the connecting plate (16) positioned at the rear of the shell (22) and the upper end surface of the shell (22).

5. The capsule filling device of claim 4, wherein: the upper end face of a connecting plate (16) in front of the shell (22) is provided with a driving block (27), the front side face of the connecting plate (16) is provided with an L-shaped rod (28), the rear side face of the vertical part of the L-shaped rod (28) is provided with a tooth slot (29) along the vertical direction, and the upper end face of the horizontal part of the L-shaped rod (28) is provided with a through slot (30) along the front-rear direction; the linkage mechanism comprises a guide block (31) fixedly arranged on the front side surface of the shell (22), a guide groove is formed in the left side surface of the guide block (31), a fixed block (32) is fixedly arranged on the left side surface of the pressing plate (15), the right side surface of the fixed block (32) is connected with a sliding block (33) in a front-back sliding manner through a sliding groove, the right side surface of the sliding block (33) is connected with the left part of a guide rod (34) in a left-right sliding manner through a sliding hole, and a telescopic spring (35) for driving the guide rod (34) to move rightwards is arranged between the left end of the guide rod (34) and the bottom of the sliding hole; the left surface of guide arm (34) is provided with rack (36) along vertical direction fixedly, and the left surface of guide block (31) is provided with dead lever (37) fixedly, and the left surface of dead lever (37) rotates and is connected with gear (38), and gear (38) and the vertical portion of L shape pole (28) are through tooth's socket (29) engaged with.

6. The capsule filling device of claim 4, wherein: the transmission mechanism comprises a mounting plate (48) fixedly arranged on the rear side face of a shell (22), a driving wheel (49) is rotatably connected to the right side face of the mounting plate (48), a first yoke block (50) is hinged to the right side face of the driving wheel (49), a second yoke block (51) is hinged to the right side face of a driving rod (26) located above the shell (22), a sliding rod (52) is hinged to the right side face of the mounting plate (48), a sliding way (53) is formed in the sliding rod (52) along the length direction, and the first yoke block (50) and the second yoke block (51) are both located in the sliding way (53) of the sliding rod (52) and are in sliding connection with the sliding rod (52).

7. The capsule filling device of claim 6, wherein: the lower end face of the workbench (4) is provided with a working plate (55), a vertical shaft (56) with the top end being coaxial and fixedly arranged with the turntable (1) is rotationally connected to the working plate (55), the intermittent mechanism comprises a grooved wheel (57) which is coaxial and fixedly arranged with the vertical shaft (56) and is positioned between the working plate (55) and the turntable (1), a plurality of driving grooves (58) are uniformly formed in the grooved wheel (57) along the circumference, an arc-shaped face (59) is formed on the outer surface of the grooved wheel (57) between every two driving grooves (58), a driving shaft (60) with the top end being fixedly arranged with the chassis (61) is rotationally arranged on the working plate (55), and a locking block (62) and a poking column (63) are fixedly arranged on the upper end face of the chassis (61); the lower end face of the working plate (55) is fixedly provided with a motor (64), and an output shaft of the motor (64) is fixedly arranged with the bottom end of the driving shaft (60).

8. The capsule filling device of claim 7, wherein: the transmission ratio conversion device comprises a first conical gear (65) which is positioned below a working plate (55) and is fixedly arranged on a driving shaft (60), a transmission shaft (66) is rotatably connected to the lower end face of the working plate (55), a second conical gear (67) and a third conical gear (68) are fixedly arranged at the front end and the rear end of the transmission shaft (66) respectively, the first conical gear (65) is meshed with the second conical gear (67), a connecting shaft (69) is rotatably arranged in the working plate (55) in the vertical direction, a fourth conical gear (70) and a fifth conical gear (71) are fixedly arranged at the bottom end and the top end of the connecting shaft (69) respectively, the fourth conical gear (70) is meshed with the third conical gear (68), a driving wheel (49) is rotatably connected with a mounting plate (48) through a rotating shaft which is coaxially and fixedly arranged at the left side, the left end of the rotating shaft protrudes out of the left side face of the mounting plate (48) and is fixedly provided with a sixth conical gear (72), the sixth conical gear (72) is meshed with the fifth conical gear (71), and the teeth of the fifth conical gear (71) are twice as the teeth of the sixth conical gear (72).

9. Capsule filling device according to claim 8, wherein: in each rotation period of the intermittent mechanism, the guide rod (34) is initially positioned at a first position (88), the guide rod (34) forms a descending-resetting to a second position (89) -descending-resetting to the first position (88) action process under the track guiding action of the guiding groove, the descending distance of the guide rod (34) is consistent, and the guide rod forms circulating motion in a plurality of rotation periods of the intermittent mechanism; the guide rod (34) synchronously moves forwards in the moving process to generate displacement, so that the guide rod (34) pushes down the driving block (27), the guide rod (34) is separated from the driving block (27), the rack (36) is meshed with the gear (38), and the guide rod (34) pushes down the driving block (27) in the moving process; the upper part of the inner cavity of each quantifying cylinder (7) is communicated with the outside through an air outlet pipe (39) correspondingly arranged at the outer side of the quantifying device body (6).

10. Capsule filling device according to claim 9, wherein: a hopper (74) communicated with the inside of the pushing bin (19) is fixedly arranged on the upper end surface of the pushing bin (19) positioned on the right side of the shell (22), two pushing plates (75) connected through a connecting rod (76) are slidably arranged in the pushing bin (19) along the left-right direction, and the right side surface of the right pushing plate (75) is connected with a second hydraulic telescopic rod (78) arranged at the rear of the pushing bin (19); both sides of each push plate (75) are arranged in the corresponding box body (81) in a sliding way in the up-down direction, and a plurality of built-in springs (82) for driving the push plates (75) to move downwards are fixedly arranged between the upper end surfaces of the push plates (75) and the inner top wall of the box body (81).