Capsule filling device

Abstract

The invention relates to the technical field of capsule processing, and particularly discloses a capsule filling device, comprising: a rotary processing seat comprising a driving member and a rotary table driven by the driving member, the top of the rotary table being circumferentially and uniformly provided with a plurality of filling grooves for accommodating capsules; a feeding assembly, a filling assembly and a discharging assembly are sequentially arranged in the circumferential direction of the side portion of the rotating table. Each cap removing assembly comprises a suction nozzle capable of being attached to the capsule in the filling groove, an air guide hole formed in the suction nozzle, an airflow channel communicated with the suction nozzle and an adjusting mechanism for driving the suction nozzle to move in the vertical direction and the radial direction of the rotating table; the capsule filling device solves the problem that a traditional capsule filling device depends on manual screening or a vision-assisted robot to screen capsule bodies and capsule caps, and consequently the production cost in the capsule generation process is high.

Description

Technical Field

[0001] The present application relates to the technical field of capsule processing, and specifically discloses a capsule filling device. Background Art

[0002] Some powders or drug particles that are irritating to the esophagus and gastric mucosa, or drugs that have a bad taste, are easy to volatilize, are easily decomposed by saliva in the mouth, and are easily inhaled into the trachea, need to be filled into capsules for administration. Capsules not only protect the drug's medicinal properties from being destroyed, but also protect the digestive organs and respiratory tract. Removing the capsule shell may cause drug loss, drug waste, and reduced efficacy. In addition, some drugs need to be dissolved and absorbed in the intestines, and capsules are a protective shell that protects the drug from being destroyed by gastric acid.

[0003] Typically, a capsule consists of a capsule body and a capsule cap. The diameter of the capsule cap is larger than the diameter of the capsule body. The capsule cap and the capsule body fit tightly together to form a closed cavity for protecting the drug. Currently, during the drug filling process, the capsule body and the capsule cap need to be separated from each other first, and then after filling the drug, they need to be tightly fastened together.

[0004] With the popularization of mechanical automation and the improvement of capsule production batches, the current capsule filling device needs to meet the requirement of filling multiple capsules at the same time. Since the shape difference between the capsule body and the capsule cap is small, and there is usually only a slight difference in diameter, in order to avoid the disorder of the assembly of the capsule body and the capsule cap after filling, the capsule body and the capsule cap are usually configured with different colors, and screened by manual screening or visual assistance robot to ensure the normal matching of the capsule body and the capsule cap. However, this process requires real-time camera processing by a visual assistance robot, and the equipment cost and maintenance cost are high. The process is relatively complicated, and there are inevitably misjudgments, wrong judgments and missed judgments, which lead to waste of raw materials in the capsule production process. In the whole process, after the capsule body and the capsule cap are separated, they need to be screened first and then filled with drugs. The span is long, which easily leads to contamination inside the capsule, increasing the probability of generating defective products. Therefore, in view of this, the inventor provides a capsule filling device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the traditional capsule filling device uses manual screening or vision-assisted robot to screen the capsule body and capsule cap, resulting in high production costs in the capsule production process.

[0006] In order to achieve the above object, the basic scheme of the present invention provides a capsule filling device, comprising: The rotary processing seat comprises a driving member and a rotary table driven by the driving member, and a plurality of filling grooves for accommodating capsules are evenly arranged on the top of the rotary table in a circumferential direction; A loading assembly, a filling assembly and a unloading assembly are sequentially arranged along the circumferential direction of the side of the rotating table; A plurality of decapping assemblies rotating synchronously with the rotating table, the decapping assemblies comprising a suction nozzle that can fit the capsule in the filling tank, an air guide hole provided on the suction nozzle, an air flow channel communicating with the suction nozzle, and an adjusting mechanism for driving the suction nozzle to move vertically and radially of the rotating table; When the filling slot rotates between the loading assembly and the filling assembly, the suction nozzle contacts the capsule and a negative pressure environment is formed in the air flow channel. When the filling slot rotates between the filling assembly and the unloading assembly, a positive pressure environment is formed in the air flow channel.

[0007] The principles and effects of this basic solution are: The present invention adopts a method of arranging a decapping component on a rotating table, and adsorbing the capsule body or the capsule cap in the capsule through the suction nozzle of the decapping component, so that the capsule body and the capsule cap can be moved to the bottom of the filling component for filling with medicine, and after the medicine filling is completed, the split capsule body or capsule cap is tightly fastened to the corresponding capsule body and capsule cap again, thereby ensuring a one-to-one correspondence between the capsule body and the capsule cap, and eliminating the traditional manual screening or vision-assisted robot screening process of the capsule body and capsule cap, effectively reducing the labor intensity of the staff, and improving the degree of automation in the capsule production process. After the capsule is split, it can be filled with medicine in time to avoid contamination of the inside of the capsule, thereby improving the quality of the finished capsule.

[0008] Further, the cap removal assembly further comprises: A fixed frame, which is arranged on the rotating table and rotates synchronously with the rotating table; A sliding frame, which is arranged along the radial direction of the rotating table and is slidably connected to the fixed frame; A lifting frame is vertically slidably connected to the sliding frame; A connecting frame is connected to the lifting frame and is used to install the suction nozzle.

[0009] Through the above arrangement, by utilizing the cooperation between the sliding frame and the fixed frame, and the cooperation between the lifting frame and the sliding frame, an environment can be provided for the vertical movement of the suction nozzle and the radial movement along the rotating table.

[0010] Furthermore, the lifting frame is evenly provided with a plurality of guide rods, the bottom of the guide rods extends into the sliding frame and is slidably and sealedly connected with the sliding frame, and the air flow channel includes a sliding cavity provided on the sliding frame and capable of accommodating the sliding of the guide rods, an air guide cavity provided inside the guide rods and connected with the sliding cavity, and a connecting cavity provided inside the lifting frame and the connecting cavity and connecting the air guide cavity with the suction nozzle. With this arrangement, after the suction nozzle contacts the capsule body or the capsule cap, the capsule body or the capsule cap blocks the air guide hole on the suction nozzle, and the air flow channel forms a closed environment. When the guide rods move upward, the space in the air flow channel increases, forming a slightly negative pressure environment, thereby sucking the capsule body or the capsule cap and driving the capsule body or the capsule cap to move upward, and then lifting the capsule body or the capsule cap upward, so as to achieve the purpose of separating the capsule body and the capsule cap of the capsule from each other. When the guide rods move downward, the space in the air flow channel decreases, forming an environment that is equal to the atmospheric pressure or a slightly positive pressure environment, and the suction nozzle loses its adsorption effect on the capsule body or the capsule cap, so that the capsule can be separated from the suction nozzle.

[0011] Further, the adjustment mechanism comprises: An adjusting guide rail is arranged below the rotating table, and the horizontal cross-section of the adjusting guide rail includes a first arc segment and a second arc segment with a diameter difference and a smooth transition. The number of the first arc segments is two and they are respectively located at one end of the adjusting guide rail close to the filling component of the loading component, the number of the second arc segments is two and they are arranged between the two first arc segments, the difference between the horizontal distance between the first arc segment and the filling groove and the horizontal distance between the second arc segment and the filling groove is greater than the diameter of the filling groove, and the bottom of the adjusting guide rail is provided with an undulating surface with a height difference greater than that of the capsule body or the capsule cap, and the vertices of the undulating surface are respectively located at one end of the adjusting guide rail close to the filling component of the loading component.

[0012] The adjusting column is vertically slidably connected to the sliding frame, the top of the adjusting column is connected to the lifting frame and a first spring is arranged between the adjusting column and the lifting frame, and the bottom of the adjusting column passes through the adjusting guide rail and is provided with a connecting ball slidably connected along the bottom of the adjusting guide rail.

[0013] By setting the horizontal cross-section of the adjusting guide rail and the undulating surface at the bottom of the adjusting guide rail, and utilizing the connection ball, the adjusting column and the adjusting guide rail to cooperate with each other, the adjusting column can be made to move vertically and along the radial direction of the rotating table as the trajectory of the adjusting guide rail and the undulating surface change while following the rotation of the rotating table.

[0014] Furthermore, the rotary processing seat also includes a fixed platform, a support ring is provided on the top of the fixed platform, the rotary platform is rotatably connected to the upper surface of the fixed platform, the filling slot passes through the fixed platform and is located directly above the support ring, and a discharge slot for accommodating the discharge of capsules is provided on the fixed platform and the support ring. By providing the discharge slot, when the capsule moves above the discharge slot, it can be automatically discharged through the discharge slot.

[0015] Furthermore, it also includes a clamping assembly capable of clamping the capsule in the filling groove, the clamping assembly comprising: The sliding arm is radially slidably connected with the rotating table and a second spring is arranged between the sliding arm and the rotating table. One side of the sliding arm extends into the filling groove and is provided with a first clamping arm. The filling groove is provided with a second clamping arm corresponding to the first clamping arm. A limiting ring is arranged on the top of the fixed platform; The limiting column is connected to the sliding wall and is slidably connected to the side wall of the limiting ring.

[0016] A clamping assembly is provided to clamp the capsule body or capsule cap in the filling groove, so that the suction nozzle can suck out the capsule body or capsule cap at the top, thereby separating the capsule body and capsule cap of the capsule.

[0017] Furthermore, the limiting column is slidably connected along the inner wall of the limiting ring, the second spring is always in a compressed state, and the thickness of the limiting ring close to the feeding assembly is greater than the thickness of the limiting ring close to the filling assembly. This arrangement makes it easy to control the clamping assembly to clamp or release the capsule body or capsule cap in the filling slot.

[0018] Furthermore, the limiting column is slidably connected along the outer wall of the limiting ring, the second spring is always in a stretched state, and the thickness of the limiting ring close to the feeding assembly is less than the thickness of the limiting ring close to the filling assembly. This setting is another assembly method for controlling the clamping assembly to clamp or release the capsule body or capsule cap in the filling groove.

[0019] Further, the feeding assembly comprises: Vibrating loader; A feeding bin connected to the discharge end of the vibrating feeder, wherein a feeding channel with a height adapted to the capsule is provided inside the feeding bin, and a feeding port connected to the feeding channel is symmetrically provided at the bottom of the feeding bin; A feeding slide block is connected in a feeding channel for reciprocating sliding movement; The slider driving member drives the loading slider to slide back and forth.

[0020] The above arrangement facilitates the individual introduction of each capsule into each filling slot.

[0021] Furthermore, it also includes a box body, wherein the rotating processing seat, the feeding assembly, the filling assembly, the unloading assembly and the cap removal assembly are all arranged in the box body, and a conveyor belt for passing the capsule into the vibrating feeder is arranged on the side wall of the box body. The box body plays the role of overall protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of a capsule filling device proposed in an embodiment of the present application is shown; Figure 2 A schematic diagram of the interior of a box in a capsule filling device proposed in an embodiment of the present application is shown; Figure 3 Shows Figure 2 Enlarged view of part A; Figure 4 A schematic diagram of a cap removal assembly in a capsule filling device proposed in an embodiment of the present application is shown; Figure 5 A cross-sectional view of a cap removal assembly in a capsule filling device proposed in an embodiment of the present application is shown; Figure 6 A schematic diagram of one side of the top of a fixed platform in a capsule filling device proposed in an embodiment of the present application is shown; Figure 7 A cross-sectional view of a clamping mechanism in a capsule filling device proposed in an embodiment of the present application is shown; Figure 8 A schematic diagram of the bottom side of a fixed platform in a capsule filling device proposed in an embodiment of the present application is shown; Fig. 9 A cross-sectional view of an upper bin in a capsule filling device proposed in an embodiment of the present application is shown; Fig.10 A schematic diagram of loading capsules into a filling tank in a capsule filling device proposed in an embodiment of the present application is shown; Fig.11 A schematic diagram showing the cooperation between a support ring and an adjustment guide rail in a capsule filling device proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] The figure marks in the drawings of the specification include: box body 1, conveyor belt 2, protective shell 3, workbench 4, vibrating loader 5, rotating table 6, intermediate box 7, mounting plate 8, slide 9, fixed frame 10, sliding frame 11, lifting frame 12, connecting frame 13, filling groove 14, adjusting column 15, guide rod 16, first spring 17, suction nozzle 18, outer platform 19, inner platform 20, support ring 21, discharge groove 22, limit ring 23, second clamping arm 24, sliding arm 25, sliding rod 26, second spring 27, first clamping arm 28, limit column 29, adjusting guide rail 30, connecting ball 31, loading bin 32, loading port 33, loading slider 34, loading port 35, capsule 36.

[0026] A capsule filling device, for example Figure 1 As shown: it includes a box body 1, a processing table arranged in the box body 1, a rotating processing seat arranged on the processing table, a loading component, a filling component, a unloading component and a cap removal component.

[0027] like Figures 1 to 3 As shown, the rotary processing seat includes a fixed table arranged on the rotary processing seat, a rotating table 6 arranged on the upper surface of the fixed table, and a driving member driving the rotating table 6 to rotate radially. The driving member adopts a stepper motor arranged in the box body 1 and located below the processing table, and transmits power through a gear pair to drive the rotating table 6 to rotate. Correspondingly, a PLC controller or a single-chip microcomputer controller for controlling the operation of the stepper motor is configured in the box body 1. A loading station, a capping station, a filling station, a capping station, and a unloading station are respectively configured at the peripheral ends of the rotating table 6. Four groups of filling slots 14 are evenly configured at the peripheral ends of the upper surface of the rotating table 6, and each group of filling slots 14 includes eight filling slots 14 for accommodating the placement of capsules 36.

[0028] like Figures 1 to 3 As shown, the feeding assembly includes a conveyor belt 2 for passing capsules 36 into the box body 1, a vibrating feeder 5 located in the box body 1 and below the end of the conveyor belt 2, and a feeding bin 32 provided at the feeding station for guiding the capsules 36 in the vibrating feeder 5 into the filling slot 14 of the rotating table 6, so that each capsule 36 is respectively passed into each filling slot 14. A protective shell 3 covering the conveyor belt 2 is provided on the side wall of the box body 1.

[0029] like Figures 2 to 3 As shown, the filling assembly includes an intermediate box 7 arranged at the filling station, a cylinder arranged on the workbench 4 and driving the intermediate box 7 to perform vertical reciprocating motion, a mounting plate 8 arranged at the bottom of the intermediate box 7, and two nozzles arranged on the mounting plate 8 and connected to the intermediate box 7. The top of the intermediate box 7 is connected to a retractable drug pipeline and is connected to a drug storage tank.

[0030] like Figures 2 to 4 As shown, there are four groups of de-capping assemblies, which include a fixed frame 10 arranged on the rotating table 6 along the diameter direction of the rotating table 6, a sliding frame 11 horizontally slidably connected along the fixed frame 10, a lifting frame 12 vertically slidably connected along the sliding frame 11, a connecting frame 13 connected to the lifting frame 12, and eight suction nozzles 18 arranged on the connecting frame 13.

[0031] like Figure 5As shown, correspondingly, a slide groove 9 is arranged on the fixed frame 10, a slide plate is arranged on the sliding frame 11 to cooperate with the slide groove 9, and two sliding cavities are symmetrically arranged on the lifting frame 12, and two guide rod 16 grooves are symmetrically arranged on the sliding frame 11. The bottom of the guide rod 16 is slidably connected in the sliding cavity and is provided with a sealing ring for sealing. The guide rod 16 is hollow inside to form an air guide cavity connected with the sliding cavity, and a connecting cavity connected with the air guide cavity is arranged inside the lifting frame 12 and the connecting frame 13. An air guide hole connected with the connecting cavity is arranged on the suction nozzle 18. The sliding cavity, the air guide cavity and the connecting cavity are combined to form an air flow channel.

[0032] When the air guide hole on the suction nozzle 18 is blocked, when the guide rod 16 moves upward, the space of the sliding cavity increases, that is, the space in the air flow channel increases, so that a negative pressure environment is formed in the air flow channel, and when the guide rod 16 moves downward, the space of the sliding cavity decreases, that is, the space in the air flow channel decreases, so that a positive pressure environment is formed in the air flow channel.

[0033] like Figure 5 As shown, an adjusting column 15 is installed on the lifting frame 12, the top of the adjusting column 15 is connected to the lifting frame 12, the bottom of the adjusting column 15 passes through the rotating table 6 and the fixed table, and a first spring 17 is provided between the sliding frame 11 and the lifting frame 12 and is sleeved between the adjusting column 15. In this embodiment, the first spring 17 is always in a compressed state.

[0034] like Figure 6 As shown, a through slot is provided on the fixed platform, which divides the fixed platform into an inner platform body 20 and an outer platform body 19, and the inner platform body 20 and the outer platform body 19 are respectively connected to the workbench 4 through a plurality of pillars. The adjusting column 15 on each lifting frame 12 passes through the through slot. A support ring 21 is arranged on the outer platform body 19, and the support ring 21 is located below the filling tank 14, so as to provide support for the capsule 36 in the filling tank 14, so that the capsule 36 moves along the support ring 21 under the drive of the rotating platform 6. A discharge slot 22 is provided on the support ring 21 at the position of the unloading station, and the discharge slot 22 passes through the support ring 21 and the outer platform body 19. The discharge assembly is a discharge pipe arranged below the outer platform body 19 and at the bottom of the discharge slot 22, so that when the capsule 36 reaches the discharge slot 22, it falls from the discharge slot 22 to the discharge pipe under the action of its own gravity and is discharged to the outside.

[0035] like Figure 6 and Figure 7As shown, four clamping assemblies are arranged on the lower surface of the rotating table 6 to clamp the capsule 36 in the filling groove 14, and the clamping assembly includes a first clamping arm 28 and a second clamping arm 24 respectively arranged on both sides of the inner wall of the filling groove 14, and a gap for clamping the capsule 36 is formed between the first clamping arm 28 and the second clamping arm 24, and the end surfaces of the first clamping arm 28 and the second clamping arm 24 are protected by protective pads, and the first clamping arm 28 is connected to a sliding arm, and the sliding wall 25 is connected to a sliding rod 26, and the end of the sliding rod 26 is slidably connected to the side wall of the rotating table 6 and a second spring 27 is arranged between the rotating table 6, and the second clamping arm 24 is fixed on the inner side of the filling groove 14, and by moving the sliding wall 25, the first clamping arm 28 can be moved close to or away from the second clamping arm 24, thereby clamping or releasing the capsule 36 in the filling groove 14.

[0036] like Figure 6 and Figure 7 As shown, in this embodiment, the movement of the sliding wall 25 is adjusted by the cooperation of the limit ring 23 and the limit column 29. The limit ring 23 is arranged on the upper surface of the outer platform 19, and the limit column 29 is arranged on the sliding arm and fits with the side wall of the limit ring 23. By setting different thicknesses of the limit ring 23, the position of the limit column 29 can be changed, thereby adjusting the movement of the sliding arm. In this embodiment, the limit column 29 can be arranged on the inner side or outer wall of the limit ring 23. When the limit column 29 is slidably connected along the inner wall of the limit ring 23, the second spring 27 is always in a compressed state, so that the limit column 29 is close to the inner wall of the limit ring 23, and the limit ring 23 at the loading station, the capping station and the unloading station. 3 is thicker than other positions, so that the capsule 36 is released when the clamping mechanism moves to the loading station, the capping station and the unloading station, and the capsule 36 is clamped at other positions. Of course, the different thicknesses of the limiting ring 23 are evenly transitioned so as to cooperate with the limiting ring 23, and when the limiting column 29 is slidably connected along the outer wall of the limiting ring 23, the second spring 27 is always in a stretched state to make the limiting column 29 close to the outer wall of the limiting ring 23, and the thickness of the limiting ring 23 at the loading station, the capping station and the unloading station is smaller than that at other positions, so that the capsule 36 is released when the clamping mechanism moves to the loading station, the capping station and the unloading station, and the capsule 36 is clamped at other positions.

[0037] like Figure 8As shown, an adjusting guide rail 30 is arranged at the edge of the through groove of the inner table body 20 and the outer table body 19, and the horizontal cross-section of the adjusting guide rail 30 is adapted to the through groove, and both include two first arc segments and a second arc segment with a diameter difference and a smooth transition, the first arc segment and the second arc segment are staggered and connected to each other, the capping station, the capping station and the unloading station are all located at the location of the first arc segment, and the loading station and the unloading station are located at the location of the second arc segment, and the difference between the horizontal distance between the first arc segment and the filling groove 14 and the horizontal distance between the second arc segment and the filling groove 14 is greater than the distance required for the connection frame 13 and the mounting plate 8 or the loading bin 32 to meet the coordination requirements, that is, when the nozzle on the loading bin 32 or the mounting plate 8 is located above the filling groove 14, the connection frame 13 and the suction nozzle 18 on the connection frame 13 need to move a sufficient distance toward the center of the rotating table 6 to provide space for the loading bin 32 or the mounting plate 8 to avoid collision, and the minimum distance is the diameter of the filling groove 14.

[0038] like Figure 8 The bottom of the adjustment rail 30 shown is provided with an undulating surface with a height difference greater than that of the capsule body or the capsule cap. Correspondingly, the adjustment column 15 passes through the through slot and the adjustment rail 30 and is provided with a connecting ball 31 adapted to the undulating surface of the adjustment rail 30. Since the first spring 17 is in a compressed state, the connecting ball 31 is always in contact with the bottom surface of the adjustment rail 30. When the capsule body or the capsule cap in the capsule 36 is located above the opening of the filling slot 14, the height difference of the undulating surface is at least greater than the overlapping length of the capsule body and the capsule cap of the capsule 36 when they are buckled. If the capsule body or the capsule cap in the capsule 36 is both located in the filling slot 14 or both are partially located in the filling slot 14, the height difference of the undulating surface must be sufficient to completely suck the capsule body or the capsule cap out of the filling slot 14, and in the path from the loading station to the capping station, the undulating surface gradually descends, so that the position of the adjustment column 15 moves downward, and the suction nozzle 18 moves downward and gradually engages with the capsule in the filling slot 14. The capsules 36 are in contact with each other, and the undulating surface gradually rises in the path from the uncapping station to the filling station, and the suction nozzle 18 drives the capsule body or capsule cap of the capsule 36 to move upward. In the path from the filling station to the capping station, the undulating surface gradually descends, so that the capsule body or capsule cap on the suction nozzle 18 moves downward and interlocks with the capsule body or capsule cap in the filling groove 14. In the path from the capping station to the unloading station, the undulating surface continues to descend to facilitate the discharge of the engaged capsule 36 from the discharge groove 22. In the path from the unloading station to the loading station, the undulating surface gradually rises.

[0039] like Fig. 9As shown, the loading bin 32 in this embodiment adopts a method of loading at both ends simultaneously. A loading channel with a height adapted to the capsule 36 is provided inside the loading bin 32, and a loading port 33 connected to the loading channel is symmetrically provided at the bottom of the loading bin 32. A loading slider 34 is provided in the loading channel, and a guide groove is provided on the side wall of the loading bin 32. The loading slider 34 is driven by a slider driving member to slide back and forth in the loading channel. The slider driving member can be a cylinder, and the piston rod of the cylinder is parallel to the loading channel and is connected to the loading slider 34 through a clamp arm through the loading port 33.

[0040] like Fig.10 As shown, the feeding bin 32 with this structure can simultaneously supply capsules 36 to two filling slots 14 during a reciprocating motion of the feeding slider 34. Fig.10 As shown in the figure, the first filling slot 14 and the fifth filling slot 14 from left to right, when the rotating table 6 rotates the position of one filling slot 14, the capsule 36 can be supplied to the second filling slot 14 and the sixth filling slot 14.

[0041] The decapping component in this embodiment is not specifically configured to absorb the capsule cap in the capsule 36, but to absorb the capsule body or one of the capsule caps in a capsule 36, and then to buckle the corresponding capsule body and capsule cap together after the capsule 36 is filled.

[0042] After the nozzle 18 contacts the capsule 36, although the capsule 36 blocks the air guide hole on the nozzle 18, the pressure in the air flow channel is slightly different from the external environment, resulting in the force between the capsule body and the capsule cap being greater than the adsorption effect of the air pressure in the air flow channel on the capsule 36. Fig.11 As shown, in the path from the uncapping station to the filling station, an inclined surface is provided on the support ring 21, so that when the undulating surface of the adjusting guide rail 30 causes the adjusting column 15 and the suction nozzle 18 to rise, the capsule 36 itself continues to rise due to the action of the support ring 21, so that under the condition that the capsule 36 keeps blocking the air guide hole on the suction nozzle 18, the air pressure in the air flow channel is further reduced, thereby improving the adsorption effect of the air pressure in the air flow channel on the capsule 36, and when the support ring 21 is horizontal, the undulating surface of the adjusting guide rail 30 continues to drive the adjusting column 15 to rise, so that the capsule body and the capsule cap are separated from each other.

[0043] The process of filling the capsule 36 in this embodiment is as follows: The capsules 36 are driven by the conveyor belt 2 to enter the vibrating feeder 5 and enter the feeding bin 32 according to the action of the vibrating feeder 5. The capsules 36 entering the feeding bin 32 fall into the feeding channel in turn and fall into each filling slot 14 in turn under the push of the feeding slider 34.

[0044] When the same group of filling slots 14 are all loaded with capsules 36, the rotating table drives the capsules 36 to move from the loading station to the capping station. During this process, due to the cooperation between the adjustment guide rail 30 and the adjustment column 15, the adjustment column 15 drives the sliding frame 11, the lifting frame 12, the connecting frame 13 and the suction nozzle 18 to move outward, and the height of the suction nozzle 18 gradually moves down, so that the suction nozzle 18 is located directly above the filling slot 14 and gradually contacts the capsule body or capsule cap of the capsule 36.

[0045] After the suction nozzle 18 is fitted with the capsule body or capsule cap of the capsule 36, the capsule body or capsule cap blocks the air guide hole on the suction nozzle 18, and then the capsule 36 moves from the uncapping station to the filling station. During this process, the inclined surface on the support ring 21 first drives the capsule 36 to move upward as a whole. When it reaches the top, due to the thickness change of the limit ring 23, the first clamping arm 28 and the second clamping arm 24 cooperate with each other to clamp the capsule body or capsule cap located below, and then the undulating surface at the bottom of the adjustment guide rail 30 cooperates with the adjustment column 15 so that the adjustment column 15 drives the suction nozzle 18 to continue to move upward, and drives the suction nozzle 18 to move inward after the upward movement is completed.

[0046] The capsule 36 without the capsule body or capsule cap is moved to the filling station driven by the rotating table, and the cylinder drives the middle box 7 to move up and down. After the middle box 7 moves down, the two nozzles respectively fill the two capsules 36 with medicine, and the medicine is filled to the bottom of the corresponding capsule body or capsule cap. The two capsules 36 filled at the same time are the same as the two capsules 36 loaded at the same time.

[0047] The drug-filled capsule 36 moves from the filling station to the capping station. At the same time, the guide rail 30 and the undulating surface at the bottom of the guide rail 30 are adjusted to move the air nozzle downward and outward, reaching the top of the filling groove 14 again and gradually snapping the corresponding capsule body and capsule cap onto the capsule body and capsule cap in the filling groove 14.

[0048] The buckled bladder body and bladder cap move from the cap closing station to the unloading station, and the air nozzle continues to move downward. At this time, the suction nozzle 18 maintains contact with the capsule 36, fastening the bladder body and the bladder cap to each other, and the air pressure in the air flow channel is greater than the external air pressure. The suction nozzle 18 loses the adsorption effect on the capsule 36. When the capsule 36 reaches the position of the discharge trough 22, it falls from the discharge trough 22 to the discharge pipe under the action of its own gravity and is discharged to the outside.

[0049] The present invention adopts a cap removal component set on the rotating table 6, and the suction nozzle 18 in the cap removal component adsorbs the capsule body or capsule cap in the capsule 36, so that the capsule body and the capsule cap can be moved to the bottom of the filling component for drug filling, and after the drug filling is completed, the capsule body or capsule cap is tightly fastened to the corresponding capsule body and capsule cap again, thereby ensuring a one-to-one correspondence between the capsule body and the capsule cap, and eliminating the traditional manual screening or vision-assisted robot screening of the capsule body and capsule cap process, effectively reducing the labor intensity of the staff, and improving the degree of automation in the production process of the capsule 36. After the capsule 36 is split, it can be filled with medicine in time to avoid contamination of the inside of the capsule 36, thereby improving the quality of the finished capsule 36.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A capsule filling device, characterized in that: include: The rotary processing seat comprises a driving member and a rotary table driven by the driving member, and a plurality of filling grooves for accommodating capsules are evenly arranged on the top of the rotary table in a circumferential direction; A loading assembly, a filling assembly and a unloading assembly are sequentially arranged along the circumferential direction of the side of the rotating table; A plurality of decapping assemblies rotating synchronously with the rotating table, the decapping assemblies comprising a suction nozzle that can fit the capsule in the filling tank, an air guide hole provided on the suction nozzle, an air flow channel communicating with the suction nozzle, and an adjusting mechanism for driving the suction nozzle to move vertically and radially of the rotating table; When the filling slot rotates between the loading assembly and the filling assembly, the suction nozzle contacts the capsule and a negative pressure environment is formed in the air flow channel. When the filling slot rotates between the filling assembly and the unloading assembly, a positive pressure environment is formed in the air flow channel.

2. A capsule filling device according to claim 1, characterized in that: The decapping assembly further comprises: A fixed frame, which is arranged on the rotating table and rotates synchronously with the rotating table; A sliding frame, which is arranged along the radial direction of the rotating table and is slidably connected to the fixed frame; A lifting frame is vertically slidably connected to the sliding frame; A connecting frame is connected to the lifting frame and is used to install the suction nozzle.

3. A capsule filling device according to claim 2, characterized in that: A plurality of guide rods are evenly arranged on the lifting frame, the bottoms of the guide rods extend into the sliding frame and are slidingly and sealingly connected to the sliding frame, and the air flow channel includes a sliding cavity arranged on the sliding frame and capable of accommodating the sliding of the guide rods, an air guide cavity arranged inside the guide rods and connected to the sliding cavity, and a connecting cavity inside the lifting frame and the connecting cavity and connecting the air guide cavity to the suction nozzle.

4. A capsule filling device according to claim 3, characterized in that: The regulating mechanism comprises: An adjustment rail is arranged below the rotating table, and the horizontal cross section of the adjustment rail includes a first arc segment and a second arc segment with a diameter difference and a smooth transition, the first arc segments are two and are respectively located at one end of the adjustment rail close to the filling assembly of the loading assembly, the second arc segments are two and are arranged between the two first arc segments, the difference between the horizontal distance between the first arc segment and the filling slot and the horizontal distance between the second arc segment and the filling slot is greater than the diameter of the filling slot, and the bottom of the adjustment rail is provided with an undulating surface with a height difference greater than the capsule body or the capsule cap, and the vertices of the undulating surface are respectively located at one end of the adjustment rail close to the filling assembly of the loading assembly; The adjusting column is vertically slidably connected to the sliding frame, the top of the adjusting column is connected to the lifting frame and a first spring is arranged between the adjusting column and the lifting frame, and the bottom of the adjusting column passes through the adjusting guide rail and is provided with a connecting ball slidably connected along the bottom of the adjusting guide rail.

5. A capsule filling device according to claims 1 to 4, characterized in that: The rotary processing seat also includes a fixed table, a support ring is provided on the top of the fixed table, the rotary table is rotatably connected to the upper surface of the fixed table, the filling groove passes through the fixed table and is located directly above the support ring, and a discharge groove for accommodating capsule discharge is provided on the fixed table and the support ring.

6. A capsule filling device according to claim 5, characterized in that: Also included is a clamping assembly capable of clamping the capsule in the filling slot, the clamping assembly comprising: The sliding arm is radially slidably connected with the rotating table and a second spring is arranged between the sliding arm and the rotating table. One side of the sliding arm extends into the filling groove and is provided with a first clamping arm. The filling groove is provided with a second clamping arm corresponding to the first clamping arm. A limiting ring is arranged on the top of the fixed platform; The limiting column is connected to the sliding wall and is slidably connected to the side wall of the limiting ring.

7. A capsule filling device according to claim 6, characterized in that: The limiting column is slidably connected along the inner wall of the limiting ring, the second spring is always in a compressed state, and the thickness of the limiting ring close to the feeding component is greater than the thickness of the limiting ring close to the filling component.

8. The capsule filling device according to claim 6, characterized in that: The limiting column is slidably connected along the outer wall of the limiting ring, the second spring is always in a stretched state, and the thickness of the limiting ring close to the feeding component is smaller than the thickness of the limiting ring close to the filling component.

9. The capsule filling device according to claim 1, characterized in that: The feeding assembly comprises: Vibrating loader; A feeding bin connected to the discharge end of the vibrating feeder, wherein a feeding channel with a height adapted to the capsule is provided inside the feeding bin, and a feeding port connected to the feeding channel is symmetrically provided at the bottom of the feeding bin; A feeding slide block is connected in a feeding channel for reciprocating sliding movement; The slider driving member drives the loading slider to slide back and forth.

10. The capsule filling device according to claim 9, characterized in that: It also includes a box body, in which the rotating processing seat, the loading assembly, the filling assembly, the unloading assembly and the capping assembly are all arranged, and a conveyor belt which can pass the capsule into the vibrating loading machine is arranged on the side wall of the box body.

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