Automatic dispensing device for pharmaceutical oral liquids

Abstract

This invention relates to the field of pharmaceutical processing technology and discloses an automatic dispensing device for oral liquids, including a filling platform, a submersible filling mechanism, and a cleaning mechanism. The submersible filling mechanism includes a dispensing tube and a first lifting assembly, which is mounted on the filling platform and its movable end is connected to the dispensing tube. The cleaning mechanism includes a positioning cylinder, an annular baffle, multiple clamping plates, a synchronous telescopic assembly, and a second lifting assembly. The positioning cylinder is coaxially arranged with the dispensing tube, and its lower end is a closed end with a first through hole at the center for the dispensing tube to pass through. The annular baffle is fixed to the inner wall of the closed end, and a liquid collection cavity is formed between the outer surface of the annular baffle and the inner surface of the positioning cylinder. This invention, through its cleaning mechanism, enables the collection and cleaning of residual liquid on the outer wall of the dispensing tube just exiting the liquid surface inside the bottle mouth, preventing residual liquid from dripping onto the bottle and affecting the accuracy of the dispensing dosage.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical processing technology, specifically to an automatic dispensing device for pharmaceutical oral liquids. Background Technology

[0002] In the production and processing of oral liquids, filling is one of the key processes to ensure the final quality of the product and the safety of medication. The accuracy of the filling dosage of oral liquids is a core quality control indicator, so it is necessary to control the accuracy of oral liquid filling.

[0003] Traditional atmospheric pressure filling relies on the weight of the liquid or pump pressure for filling. While simple in structure, it is prone to trapping air and generating numerous bubbles when filling high-viscosity or foam-prone liquids as the liquid falls from the top of the filling head to the bottom of the bottle. These bubbles adhere to the bottle wall or remain suspended in the liquid, occupying an effective volume and resulting in insufficient filling volume. When these bubbles burst or rise after filling, the liquid level drops, leading to dosage inaccuracies. To reduce dosage inaccuracies, submersible filling can be used. In submersible filling, the filling tube is inserted to the bottom of the bottle and slowly raised in sync with the rising liquid level. The liquid is injected smoothly and without impact, and the liquid exiting the tube remains below the liquid surface, minimizing contact between the liquid and air and inhibiting bubble formation at its source.

[0004] While submersible filling effectively reduces bubble formation, the filling tube still needs to exit the liquid surface after filling, leaving residual medication on both the inner and outer walls. This residual medication drips continuously down the tube walls into the bottle, increasing the dosage and generating small bubbles due to air contact and impact with the liquid surface, thus affecting the accuracy of the filling dosage. While a sealing valve can be installed inside the filling tube to prevent dripping, there are currently no effective methods for cleaning and collecting residual medication on the outer wall of the tube, meaning the problem of dripping and affecting the accuracy of the filling dosage still exists. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic dispensing device for pharmaceutical oral liquids, in order to solve the problem that when the dispensing tube is withdrawn from the liquid surface after filling, residual liquid on the outer wall of the dispensing tube slides down the tube wall and drips into the medicine bottle, affecting the accuracy of the filling dosage.

[0006] The technical solution of this invention is: An automatic dispensing device for pharmaceutical oral liquids includes a filling platform, a submersible filling mechanism, and a cleaning mechanism. The submersible filling mechanism includes a dispensing tube and a first lifting assembly. The first lifting assembly is disposed on the filling platform, and its movable end is connected to the dispensing tube for driving the dispensing tube to rise and fall for submersible filling. The cleaning mechanism includes a positioning cylinder, an annular baffle, multiple clamping plates, a synchronous telescopic assembly, and a second lifting assembly. The positioning cylinder is coaxially arranged with the dispensing tube, and its lower end is a closed end with a first through hole at the center of the closed end for the dispensing tube to pass through. The annular baffle is fixed to the inner wall of the closed end and is coaxially arranged with the first through hole. The outer surface of the annular baffle is flush with the positioning cylinder. A liquid collection cavity is formed between the inner ring surfaces; multiple clamping plates are evenly distributed and arranged around the inside of the positioning cylinder, and are located above the annular baffle. The inner wall of the clamping plate is arc-shaped, and an inclined arc-shaped liquid guiding groove is opened on the inner wall of the clamping plate. A leakage hole is opened on the inner wall of the liquid guiding groove; a synchronous telescopic assembly is arranged on the positioning cylinder. The synchronous telescopic assembly is used to drive the multiple clamping plates to move synchronously. After the filling is completed, the lower outer wall of the filling tube is clamped synchronously, and the residual medicine liquid that has slid down is guided into the liquid collection cavity through the arc-shaped liquid guiding groove and the leakage hole; a second lifting assembly is arranged on the filling platform. The moving end of the second lifting assembly is connected to the positioning cylinder, and before filling, it drives the positioning cylinder to be inserted into the mouth of the medicine bottle.

[0007] Preferably, as a further improvement of the present invention, the synchronous telescopic assembly includes a housing, an abutment ring, multiple moving rods, and multiple pressing blocks; the housing is disposed above the positioning cylinder, the outer wall of the housing is connected to the moving end of the second lifting assembly, the top of the housing has a second through hole coaxially arranged with the first through hole, the bottom of the housing has a mounting hole, and the positioning cylinder passes through the mounting hole; the lower end face of the abutment ring is coaxially fixed with the top of the positioning cylinder, the upper end face of the abutment ring is circumferentially connected with multiple first springs, the other ends of the multiple first springs are connected to the inner top surface of the housing, and the circumferential sidewall of the abutment ring has a through-hole. Multiple grooves, the same number as multiple clamping plates, are provided. Multiple movable rods are slidably connected to the multiple grooves, with one end of each movable rod fixed to the outer wall of the multiple clamping plates and the other end of each movable rod connected to a sliding abutment. Each movable rod is fitted with a second spring, the two ends of which are respectively connected to the sliding abutment and the outer wall of the abutment ring. Multiple extrusion blocks are fixed to the inner wall of the housing and are positioned directly opposite the multiple movable rods. Each extrusion block has an upwardly inclined guide slope on its side wall opposite the movable rod, and a guide groove parallel to the guide slope is formed on the guide slope. The sliding abutment is slidably connected to the guide groove.

[0008] Preferably, as a further improvement of the present invention, the sliding contact part is a wedge-shaped block, one side wall of the wedge-shaped block is fixed to the end of the moving rod, and the side wall of the wedge-shaped block opposite to the moving rod is provided with a wedge-shaped surface that matches the guide groove, and the wedge-shaped surface is slidably connected to the guide groove.

[0009] Preferably, as a further improvement of the present invention, the sliding contact portion includes a wheel frame and a roller, the wheel frame is fixed to the end of the moving rod, the roller is rotatably connected to the wheel frame, and the outer ring of the roller contacts the guide groove.

[0010] Preferably, as a further improvement of the present invention, the outer diameter of the positioning cylinder matches the inner diameter of the medicine bottle opening, and the diameter of the mounting hole is larger than the outer diameter of the medicine bottle opening.

[0011] Preferably, as a further improvement of the present invention, the annular baffle is conical and its diameter gradually increases from top to bottom, the lower opening of the filling pipe is conical and its diameter gradually decreases from top to bottom, the minimum diameter of the annular baffle is greater than the maximum diameter of the filling pipe, and the lower side shape of the clamping plate matches the shape of the lower opening of the filling pipe.

[0012] Preferably, as a further improvement of the present invention, a spiral guide groove is provided on the outer wall of the lower opening of the filling pipe, and multiple arc-shaped liquid guide grooves are provided on the clamping plate and are evenly distributed along the longitudinal direction of the clamping plate.

[0013] Preferably, as a further improvement of the present invention, the filling pipe includes a first pipe body, a second pipe body, and a third pipe body. The second pipe body and the third pipe body are arranged vertically, with the second pipe body located above the third pipe body. The first pipe body is a flexible tube, with one end connected to an external liquid pumping assembly and the other end connected to the upper port of the second pipe body. The outer wall of the second pipe body is connected to the moving end of the first lifting assembly. A rotary joint is connected to the lower port of the second pipe body. The upper end of the third pipe body is rotatably connected to the rotary joint. A rotary drive assembly is provided on the moving end of the first lifting assembly. The output end of the rotary drive assembly is connected to the side wall of the third pipe body for driving the third pipe body to rotate.

[0014] Preferably, as a further improvement of the present invention, the rotary drive assembly includes a mounting plate, a drive motor, and a chain drive component; the mounting plate is connected to the moving end of the first lifting assembly, and a through groove is formed on the mounting plate, through which the third tube passes; the drive motor is fixed on the mounting plate; the chain drive component includes a driving sprocket, a driven sprocket, and a chain, the driving sprocket is fixedly mounted on the output shaft of the drive motor, the driven sprocket is fixedly mounted on the outer wall of the third tube, and the chain is connected between the driving sprocket and the driven sprocket.

[0015] Preferably, as a further improvement of the present invention, it also includes a liquid extraction tube, one end of which extends into the liquid collection chamber and the tube body is fixed to the inner wall of the liquid collection chamber, and the other end of which passes through the outer shell and is connected to an external liquid extraction pump through a connecting hose.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 0. The cleaning mechanism is specifically designed to clean residual medicine from the outer wall of the filling tube, preventing residual medicine from dripping back into the medicine bottle and affecting the accuracy of the filling dosage.

[0017] 1. Before filling, the positioning cylinder is inserted into the mouth of the medicine bottle by the second lifting component. While positioning the filling target, it prepares for subsequent cleaning. Since the positioning cylinder extends into the mouth of the medicine bottle, it can directly clean and collect the residual medicine on the outer tube wall that has just exited the liquid surface of the filling tube. This reduces the dripping process in the filling tube. During cleaning, the synchronous telescopic component drives multiple clamping plates to clamp the outer tube wall of the filling tube. The arc-shaped liquid guide groove and leakage hole set on the clamping plate guide the residual medicine that slides down the outer tube wall of the filling tube to the collection chamber. Moreover, the multiple clamping plates can prevent the residual medicine above from sliding down after they clamp the outer tube wall of the filling tube in a ring. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an automatic dispensing device for pharmaceutical oral liquids according to the present invention.

[0019] Figure 2 For the present invention Figure 1 A magnified view of part A in the diagram.

[0020] Figure 3 For the present invention Figure 1 A magnified view of part B in the diagram.

[0021] Figure 4 This is a schematic diagram of the first filling state of an automatic dispensing device for pharmaceutical oral liquids according to the present invention.

[0022] Figure 5 This is a schematic diagram of the second filling state of an automatic dispensing device for pharmaceutical oral liquids according to the present invention.

[0023] Figure 6 This is a schematic diagram of the third filling state in an automatic dispensing device for pharmaceutical oral liquids according to the present invention.

[0024] Figure 7 This is a schematic diagram of the fourth filling state in an automatic dispensing device for pharmaceutical oral liquids according to the present invention.

[0025] Figure 8This is a schematic diagram of the fifth filling state in an automatic dispensing device for pharmaceutical oral liquids according to the present invention.

[0026] Figure 9 This is a front view schematic diagram of an automatic dispensing device for pharmaceutical oral liquids according to the present invention.

[0027] Figure 10 This is a side view of the automatic dispensing device for pharmaceutical oral liquids according to the present invention. Detailed Implementation

[0028] The following is combined with Figures 1-10 The specific embodiments of the present invention will be described in detail below. In the description of the invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the invention, unless otherwise stated, "a plurality of" means two or more.

[0030] Example 1 like Figures 1-10 As shown, this embodiment of the invention provides an automatic dispensing device for pharmaceutical oral liquids, including a filling platform 1, a submersible filling mechanism, and a cleaning mechanism.

[0031] The submersible filling mechanism includes a filling tube 2 and a first lifting assembly. The first lifting assembly is mounted on the filling platform 1. The moving end of the first lifting assembly is connected to the filling tube 2, and the inlet end of the filling tube 2 is connected to an external medicine pumping assembly. During the filling process, the filling tube 2 is first inserted into the medicine bottle containing the oral liquid to be filled and extends to near the bottom of the bottle through the first lifting assembly. The oral liquid is then pumped into the filling tube 2 through the external medicine pumping assembly and injected into the medicine bottle through the filling tube 2, so that the oral liquid covers the outlet of the filling tube 2. As the liquid level rises, the filling tube 2 is gradually raised by the first lifting assembly, keeping the outlet of the filling tube 2 always below the liquid level. When the filling reaches the specified liquid level, the external medicine pumping stops pumping, and the filling tube 2 is pulled out of the liquid level by the first lifting assembly. At this time, the sealing valve inside the filling tube 2 will seal in time to prevent residual medicine inside the filling tube 2 from dripping into the medicine bottle and affecting the accuracy of the dosage.

[0032] Although the sealing valve can stop the residual medicine inside the filling tube 2 after filling, some medicine will remain on the outer wall of the filling tube 2 after it extends out of the liquid surface. This residual medicine will drip down the tube wall into the medicine bottle, affecting the accuracy of the dosage. In order to clean and collect the liquid remaining on the outer wall of the filling tube 2, a cleaning mechanism is also provided, which is the innovation of this invention. Specifically, the cleaning mechanism includes a positioning cylinder 31, an annular baffle 32, multiple clamping plates 33, a synchronous telescopic assembly, and a second lifting assembly. The positioning cylinder 31 is coaxially arranged with the filling tube 2. The lower end of the positioning cylinder 31 is a closed end, and a first opening is opened at the center of the closed end for the filling tube 2 to pass through. A through hole 311; an annular baffle 32 is fixed on the inner wall of the closed end and is coaxially arranged with the first through hole 311. A liquid collection cavity is formed between the outer ring surface of the annular baffle 32 and the inner ring surface of the positioning cylinder 31; multiple clamping plates 33 are evenly distributed and arranged around the inside of the positioning cylinder 31 and are located above the annular baffle 32. The inner wall of the clamping plate 33 is arc-shaped, and an inclined arc-shaped liquid guiding groove 331 is opened on the inner wall of the clamping plate. A leakage hole 332 is opened on the inner wall of the liquid guiding groove 331; a synchronous telescopic assembly is arranged on the positioning cylinder 31 and is connected to the outer wall of the multiple clamping plates 33; a second lifting assembly is arranged on the filling table 1 and the moving end of the second lifting assembly is connected to the positioning cylinder 31.

[0033] In this embodiment, the cleaning mechanism can clean and collect the residual liquid on the outer wall of the filling tube 2 after filling. The cleaning principle is as follows: First, before filling, the second lifting component drives the positioning cylinder 31 to descend and insert into the mouth of the medicine bottle to form a position. Then, the synchronous telescopic component drives multiple clamping plates 33 to synchronously retract and move horizontally, leaving a certain space. Then, the first lifting component drives the filling tube 2 to descend. During the descent of the filling tube 2, it first extends into the positioning cylinder 31, then into the annular baffle 32, and finally passes through the first through hole 311 into the inside of the medicine bottle. After filling is completed, the first lifting component drives the filling tube 2 to rise and move above the annular baffle 32 and then stops moving. At this time, the synchronous telescopic component drives multiple clamping plates 33 to extend horizontally in sync. The multiple clamping plates 33 clamp the outer wall of the lower end of the filling tube 2 around the perimeter, and the residual medicine that slides down the outer wall of the filling tube 2 is guided into the collection chamber for collection through the arc-shaped liquid guide groove 331 and the leakage hole 332, so as to avoid dripping into the medicine bottle and affecting the accuracy of the dosage. Then, the first lifting component and the second lifting component respectively drive the positioning cylinder 31 and the filling tube 2 to exit from the medicine bottle.

[0034] Specifically, such as Figures 4-8As shown, the synchronous telescopic assembly includes a housing 41, an abutment ring 42, multiple moving rods 44, and multiple pressing blocks 47. The housing 41 is positioned above the positioning cylinder 31, and its outer wall is connected to the moving end of the second lifting assembly. The top of the housing 41 has a second through hole 411 coaxially arranged with the first through hole 311, and the bottom of the housing 41 has a mounting hole 412 through which the positioning cylinder 31 passes. The lower end face of the abutment ring 42 is coaxially fixed with the top of the positioning cylinder 31, and the upper end face of the abutment ring 42 is circumferentially connected with multiple first springs 43. The other ends of the multiple first springs 43 are connected to the inner top surface of the housing 41. Multiple clamping plates 33 are perforated through the circumferential sidewall of the abutment ring 42. The slide groove 421 is the same; multiple moving rods 44 are slidably connected in the multiple slide grooves 421 respectively, and one end of the multiple moving rods 44 is fixed to the outer wall of the multiple clamping plates 33. The other end of the multiple moving rods 44 is connected to a sliding abutment part 45. A second spring 46 is sleeved on each moving rod 44. The two ends of the second spring 46 are respectively connected to the sliding abutment part 45 and the outer wall of the abutment ring 42; multiple extrusion blocks 47 are fixed on the inner wall of the housing 41 and are arranged directly opposite the multiple moving rods 44. Each extrusion block 47 has an inclined guide slope on the side wall opposite the moving rod 44, and a guide slide groove 471 is arranged parallel to it on the guide slope. The sliding abutment part 45 is slidably connected to the guide slide groove 471.

[0035] In this embodiment, the power source of the synchronous telescopic assembly is achieved through the second lifting assembly and the pressure applied to the medicine bottle. It should be noted that in the initial state, the positioning cylinder 31 is located above the medicine bottle, the filling tube 2 is located above the housing 41, and the elastic force of the multiple first springs 43 is greater than the elastic force of the second spring 46. The multiple first springs 43 support the abutment ring 42 and the sliding abutment part 45 on the inner bottom surface of the housing 41 through elastic force, and keep the second spring 46 in a compressed state. The movement process of the synchronous telescopic assembly is described below: Figure 4 As shown, before filling, the second lifting assembly lowers the housing 41 to a first preset height, allowing the positioning cylinder 31 to be inserted into the bottle mouth and the abutment ring 42 to abut against the top of the bottle mouth; as Figure 5 As shown, the second lifting assembly continues to lower the housing 41 to the second preset height. Since the height of the abutment ring 42 is limited by the bottle opening, as the housing 41 descends, the abutment ring 42 compresses multiple first springs 43. Simultaneously, the height of the sliding abutment part 45 is also limited by the abutment ring 42, causing the sliding abutment part 45 to slide upwards relative to the guide groove 471. At this time, each second spring 46, under elastic force, drives each moving rod 44 to move horizontally away from the center of the positioning cylinder 31, thereby dispersing the multiple clamping plates 33. Figure 6As shown, keeping the height of the second lifting component unchanged, the first lifting component drives the filling tube 2 to pass through the second through hole 411, multiple clamping plates 33, annular baffle 32, and the first through hole 311 in sequence to enter the medicine bottle for submersible filling; Figure 7 As shown, after filling is completed, the first lifting component drives the filling pipe 2 to rise to the third preset height, and moves it to a position above the annular baffle 32, maintaining a constant height; as shown Figure 8 As shown, the first and second lifting components are simultaneously controlled to move upward to a fourth preset height. At this time, under the abutment of multiple first springs 43, the sliding abutment part 45 slides downward relative to the guide groove 471. At this time, each sliding abutment part 45 compresses the second spring 46 under the pressure of the squeezing block 47, and causes each moving rod 44 to move horizontally towards the center of the positioning cylinder 31. This causes multiple clamping plates 33 to elastically clamp the outer wall of the lower port of the dispensing tube 2, thereby guiding the residual medicine on the outer wall of the lower port of the dispensing tube 2 into the collection chamber. After cleaning, the second lifting component drives the housing 41 to rise to the initial height, causing the positioning cylinder 31 to exit the bottle mouth. The first lifting component drives the dispensing tube 2 to rise to the initial height, pulls it out from the multiple elastically clamping clamping plates 33, and moves it above the housing 41.

[0036] Specifically, as an optional embodiment of the sliding contact part 45, the sliding contact part 45 in this embodiment is a wedge-shaped block (not shown in the figure). One side wall of the wedge-shaped block is fixed to the end of the moving rod 44. The side wall of the wedge-shaped block facing away from the moving rod 44 is provided with a wedge-shaped surface that matches the guide groove 471. The wedge-shaped surface is slidably connected to the guide groove 471.

[0037] Specifically, as another optional embodiment of the sliding contact part 45, the sliding contact part 45 in this embodiment includes a wheel frame and a roller. The wheel frame is fixed to the end of the moving rod 44, the roller is rotatably connected to the wheel frame, and the outer ring of the roller contacts the guide groove 471. The roller can reduce the frictional force in contact with the guide groove 471, thereby enabling the moving rod 44 to extend and retract horizontally more smoothly.

[0038] As an optimization and improvement of the above technical solution, the outer diameter of the positioning cylinder 31 matches the inner diameter of the medicine bottle mouth, and the diameter of the mounting hole 412 is larger than the outer diameter of the medicine bottle mouth. With this setting, the positioning cylinder 31 can be inserted into the medicine bottle mouth and positioned, so that the lower end ring surface of the abutment ring 42 can be accurately aligned and engaged.

[0039] In other embodiments of the invention, such as Figure 4As shown, the annular baffle 32 is conical with its diameter gradually increasing from top to bottom, and the lower opening of the filling pipe 2 is conical with its diameter gradually decreasing from top to bottom. The minimum diameter of the annular baffle 32 is greater than the maximum diameter of the filling pipe 2. The shape of the lower side of the clamping plate 33 matches the shape of the lower opening of the filling pipe 2. By setting the annular baffle 32 to a conical shape with its diameter gradually increasing from top to bottom, the volume of the liquid collection chamber can be increased. By setting the lower opening of the filling pipe 2 and the lower side of the clamping plate 33 to a conical shape with its diameter gradually decreasing from top to bottom, the leakage hole 332 and the clamping plate 33 can form a certain angle, thereby facilitating the introduction of residual liquid from the outer wall of the filling pipe 2 into the liquid collection chamber.

[0040] As an optimization and improvement of the above technical solution, such as Figure 4 As shown, a spiral guide groove is provided on the outer wall of the lower opening of the filling pipe 2, and multiple arc-shaped liquid guiding grooves 331 are provided on the clamping plate 33, which are evenly distributed along the longitudinal direction of the clamping plate 33. The spiral guide groove can greatly extend the path of the residual liquid on the outer wall of the filling pipe 2, thereby reducing the amount of dripping. The multiple arc-shaped liquid guiding grooves 331 can increase the path of the residual liquid, achieving full collection. When multiple clamping plates 33 are brought together, the arc-shaped liquid guiding grooves 331 will also form a complete spiral guide groove, thereby increasing the path of the residual liquid and fully guiding the residual liquid.

[0041] As an optimization and improvement of the above technical solution, the filling pipe 2 includes a first pipe body 21, a second pipe body 22, and a third pipe body 23. The second pipe body 22 and the third pipe body 23 are arranged vertically, with the second pipe body 22 located above the third pipe body 23. The first pipe body 21 is a flexible tube, with one end connected to an external liquid pumping assembly and the other end connected to the upper port of the second pipe body 22. The outer wall of the second pipe body 22 is connected to the moving end of the first lifting assembly. A rotary joint 5 is connected to the lower port of the second pipe body 22. The upper end of the third pipe body 23 is rotatably connected to the rotary joint 5. A rotary drive assembly is provided on the moving end of the first lifting assembly. The output end of the rotary drive assembly is connected to the side wall of the third pipe body 23 to drive the third pipe body 23 to rotate.

[0042] In this embodiment, the rotation drive component can achieve, for example... Figure 8 During the operation shown, the third tube 23 is rotated, and the centrifugal force of the rotation throws the residual liquid that has slid off the outer tube wall into the arc-shaped liquid guide groove 331 and the leakage hole 332, thereby achieving a more efficient liquid collection and cleaning process. The wall surface of the clamping plate 33 that contacts the third tube 23 is provided with a smooth wear-resistant layer.

[0043] The external medicine pumping assembly includes a medicine storage tank 11 and a filling pump 12. The filling pump 12 is fixed on the side wall of the medicine storage tank 11. The input end of the filling pump 12 is connected to the inside of the medicine storage tank 11 through a liquid extraction pipe. The output end of the filling pump 12 is connected to the first pipe body 21. The medicine stored in the medicine storage tank 11 is pumped to the filling pipe 2 for filling by the filling pump 12.

[0044] The first lifting assembly includes a screw lifting module 81, a first lifting seat 82, and a first connecting seat 83. The screw lifting module 81 is mounted on the filling table 1. The first lifting seat 82 is connected to the screw on the screw lifting module 81. One side of the first connecting seat 83 is fixedly connected to the first lifting seat 82, and the other side of the first connecting seat 83 is fixed to the outer wall of the second tube 22. The screw lifting module 81 drives the first lifting seat 82 to move up and down. During the movement of the first lifting seat 82, the first connecting seat 83 drives the filling tube 2 to move up and down synchronously.

[0045] The second lifting assembly includes a lifting drive unit 91, a second lifting seat 92, and a second connecting seat 93. The lifting drive unit 91 can be any one of a hydraulic cylinder, an electric cylinder, or a pneumatic cylinder. The cylinder body of the lifting drive unit 91 is fixed to the table surface of the filling station 1. The piston rod of the lifting drive unit 91 is fixed to the second lifting seat 92. One side of the second connecting seat 93 is fixed to the second lifting seat 92, and the other side of the second connecting seat 93 is fixed to the outer wall of the housing 41. The lifting drive unit 91 drives the second lifting seat 92 to rise and fall. During the rising and falling process of the second lifting seat 92, the housing 41 is moved up and down synchronously through the second connecting seat 93.

[0046] Specifically, as an optional embodiment of the rotary drive assembly, it includes a mounting plate 61, a drive motor 62, and a chain drive component; the mounting plate 61 is connected to the moving end of the first lifting assembly, and a through groove 611 is provided on the mounting plate 61, through which the third tube 23 passes; the drive motor 62 is fixed on the mounting plate 61; the chain drive component includes a drive sprocket 63, a driven sprocket 64, and a chain 65, the drive sprocket 63 is fixedly mounted on the output shaft of the drive motor 62, the driven sprocket 64 is fixedly mounted on the outer wall of the third tube 23, and the chain 65 connects the drive sprocket 63 and the driven sprocket 64.

[0047] When the third tube 23 is rotated by the rotary drive assembly, the drive motor 62 drives the drive sprocket 63 to rotate. The drive sprocket 63 drives the driven sprocket 64 to rotate via the chain 65, and then drives the third tube 23 to rotate via the driven sprocket 64.

[0048] The two ends of the mounting plate 61 are fixedly connected to the first lifting seat 82 through the connecting frame 84, and move up and down synchronously with the first lifting seat 82.

[0049] In another embodiment of the present invention, in order to periodically extract the residual liquid collected in the collection chamber and avoid the collection process from exceeding the capacity of the collection chamber, a liquid extraction tube 7 is also included. One end of the liquid extraction tube 7 extends into the collection chamber and the tube body is fixed to the inner wall of the collection chamber. The other end of the liquid extraction tube 7 passes through the outer shell 41 and is connected to an external liquid extraction pump through a connecting hose.

[0050] In another embodiment of the present invention, in order to improve filling efficiency, a medicine bottle conveying assembly is installed on the side of the filling station 1. The medicine bottle conveying assembly includes a belt conveyor 13 and multiple positioning seats 14. The multiple positioning seats 14 are evenly distributed and fixed along the outer circumferential surface of the conveyor belt of the belt conveyor 13. Each positioning seat 14 has a cylindrical slot at the top for holding the bottom of the medicine bottle. The belt conveyor 13 moves intermittently. During the intermittent stop, the empty medicine bottles to be filled can be placed in batches into the cylindrical slots on the multiple positioning seats 14 by a transfer robotic arm. At the same time, the multiple filled medicine bottles are taken out from the cylindrical slots and transferred to the next station for sealing operation. The filling tube 2, positioning cylinder 31, annular baffle 32, multiple clamping plates 33, synchronous telescopic assembly, and driven sprocket 64 can be set in multiple sets to perform filling and cleaning operations synchronously.

[0051] The above-disclosed embodiments are merely preferred embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An automatic dispensing device for pharmaceutical oral liquids, characterized in that, include: Filling station; The submersible filling mechanism includes a filling pipe and a first lifting component. The first lifting component is disposed on the filling platform. The movable end of the first lifting component is connected to the filling pipe and is used to drive the filling pipe to rise and fall for submersible filling. The cleaning mechanism includes: a positioning cylinder, coaxially arranged with the filling tube, the lower end of the positioning cylinder being a closed end, and a first through hole for the filling tube to pass through being opened at the center of the closed end; an annular baffle, fixed to the inner wall of the closed end and coaxially arranged with the first through hole, a liquid collection cavity being formed between the outer ring surface of the annular baffle and the inner ring surface of the positioning cylinder; and multiple clamping plates, evenly distributed and arranged around the inside of the positioning cylinder and located above the annular baffle, the inner wall of the clamping plates being arc-shaped. An inclined arc-shaped liquid guiding groove is provided on the inner wall of the filling tube, and a leakage hole is provided on the inner wall of the liquid guiding groove; a synchronous telescopic component is provided on the positioning cylinder, which is used to drive multiple clamping plates to move synchronously and telescopically, and to clamp the lower outer wall of the filling tube synchronously after filling, and to guide the sliding residual medicine into the collection chamber through the arc-shaped liquid guiding groove and the leakage hole; a second lifting component is provided on the filling platform, and the moving end of the second lifting component is connected to the positioning cylinder, which drives the positioning cylinder to be inserted into the mouth of the medicine bottle before filling.

2. The automatic dispensing device for pharmaceutical oral liquids according to claim 1, characterized in that, The synchronous scaling component includes: A housing is disposed above the positioning cylinder. The outer wall of the housing is connected to the moving end of the second lifting assembly. A second through hole is provided on the top of the housing, which is coaxial with the first through hole. A mounting hole is provided on the bottom of the housing, and the positioning cylinder passes through the mounting hole. The abutment ring has its lower end face fixed coaxially with the top of the positioning cylinder, and its upper end face is circumferentially connected with multiple first springs. The other ends of the multiple first springs are connected to the inner top surface of the housing. The circumferential sidewall of the abutment ring is provided with multiple sliding grooves, the same number as the multiple clamping plates. Multiple movable rods are slidably connected in multiple sliding grooves, and one end of each movable rod is fixed to the outer wall of multiple clamping plates. The other end of each movable rod is connected to a sliding abutment part. Each movable rod is fitted with a second spring, and the two ends of the second spring are respectively connected to the sliding abutment part and the outer wall of the abutment ring. Multiple extrusion blocks are fixed on the inner wall of the housing and are positioned directly opposite multiple moving rods. Each extrusion block has an upwardly inclined guide slope on the side wall facing the moving rod, and a guide groove is parallel to the guide slope. The sliding contact part is slidably connected to the guide groove.

3. The automatic dispensing device for pharmaceutical oral liquids according to claim 2, characterized in that, The sliding contact part is a wedge-shaped block. One side wall of the wedge-shaped block is fixed to the end of the moving rod. The side wall of the wedge-shaped block opposite to the moving rod is provided with a wedge-shaped surface that matches the guide groove. The wedge-shaped surface is slidably connected to the guide groove.

4. The automatic dispensing device for pharmaceutical oral liquids according to claim 2, characterized in that, The sliding contact part includes a wheel frame and a roller. The wheel frame is fixed to the end of the moving rod, and the roller is rotatably connected to the wheel frame, with the outer ring of the roller contacting the guide groove.

5. The automatic dispensing device for pharmaceutical oral liquids according to claim 2, characterized in that, The outer diameter of the positioning cylinder matches the inner diameter of the medicine bottle opening, and the diameter of the mounting hole is larger than the outer diameter of the medicine bottle opening.

6. The automatic dispensing device for pharmaceutical oral liquids according to claim 1, characterized in that, The annular baffle is conical with a diameter that gradually increases from top to bottom. The lower opening of the filling pipe is conical with a diameter that gradually decreases from top to bottom. The minimum diameter of the annular baffle is greater than the maximum diameter of the filling pipe. The shape of the lower side of the clamping plate matches the shape of the lower opening of the filling pipe.

7. The automatic dispensing device for pharmaceutical oral liquids according to claim 6, characterized in that, The lower opening of the filling pipe is provided with a spiral guide groove on its outer wall, and the clamping plate is provided with multiple arc-shaped liquid guide grooves, which are evenly distributed along the longitudinal direction of the clamping plate.

8. The automatic dispensing device for pharmaceutical oral liquids according to claim 7, characterized in that, The filling pipe includes a first pipe body, a second pipe body, and a third pipe body. The second and third pipe bodies are vertically arranged, with the second pipe body located above the third pipe body. The first pipe body is a flexible tube, with one end connected to an external medicine pumping assembly and the other end connected to the upper port of the second pipe body. The outer wall of the second pipe body is connected to the moving end of the first lifting assembly. A rotary joint is connected to the lower port of the second pipe body. The upper end of the third pipe body is rotatably connected to the rotary joint. A rotary drive assembly is provided on the moving end of the first lifting assembly. The output end of the rotary drive assembly is connected to the side wall of the third pipe body to drive the third pipe body to rotate.

9. The automatic dispensing device for pharmaceutical oral liquids according to claim 8, characterized in that, The rotation drive assembly includes: The mounting plate is connected to the moving end of the first lifting component. A through groove is provided on the mounting plate, and the third tube passes through the through groove. The drive motor is fixed on the mounting plate. The chain drive component includes a driving sprocket, a driven sprocket, and a chain. The driving sprocket is fixedly mounted on the output shaft of the drive motor, the driven sprocket is fixedly mounted on the outer wall of the third tube, and the chain connects the driving sprocket and the driven sprocket.

10. The automatic dispensing device for pharmaceutical oral liquid according to any one of claims 2 to 9, characterized in that, It also includes a liquid extraction tube, one end of which extends into the liquid collection chamber and is fixed to the inner wall of the liquid collection chamber, and the other end passes through the outside of the housing and is connected to an external liquid extraction pump through a connecting hose.

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